Tag: Cocrystal Pharma

Research News and Market Data on COCP

August 05, 2025

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• All CDI-988 doses, ranging from 100 mg to 1200 mg, in the Phase 1 study were well tolerated
• Company expects to initiate Phase 1b study with CDI-988 in norovirus-infected healthy subjects later this year
• Lack of approved norovirus treatments or vaccines creates critical unmet medical need

BOTHELL, Wash., Aug. 05, 2025 (GLOBE NEWSWIRE) — Cocrystal Pharma, Inc. (Nasdaq: COCP) announces the presentation of favorable safety and tolerability data from a randomized, double-blinded, placebo-controlled Phase 1 study with its oral, direct-acting pan-viral inhibitor CDI-988 at the 2025 Military Health System Research Symposium (MHSRS), being held August 4-7 in Kissimmee, Florida. The results support Cocrystal’s continued clinical development of CDI-988 as a potential norovirus prophylaxis and treatment.

In An Oral Pan-viral Protease Inhibitor for the Prevention and Treatment of Norovirus and Coronavirus Infections: Mechanism of Action and Phase 1 Study Results, Sam Lee, Ph.D., Cocrystal President and co-CEO, discussed findings from the CDI-988 Phase 1 single-ascending (SAD) and multiple-ascending (MAD) cohorts. Data indicate that all doses, ranging from 100 mg to 1200 mg, were well tolerated. Overall treatment-emergent adverse events among CDI-988 subjects were 28% (10/36) compared with 40% (4/10) among placebo subjects for the SAD cohorts, and 53% (19/36) and 92% (11/12), respectively, for the MAD cohorts. Headache was the most common adverse event. All subjects in the SAD cohorts and all but one in the MAD cohorts completed the study. No severe treatment-emergent adverse events, no clinically relevant ECG changes and no clinically significant pathology results were reported from the CDI-988 Phase 1 single-ascending (SAD) and multiple-ascending (MAD) cohorts.

“Consistent with interim results from the Phase 1 study, CDI-988 was well-tolerated with a favorable safety profile across all dose levels tested in this study,” said Dr. Lee. “Our plan to continue CDI-988’s clinical development for norovirus is particularly relevant for the military, where this highly transmissible pathogen poses significant operational and economic risks. In confined settings such as naval vessels and military installations, norovirus can rapidly spread, causing debilitating gastrointestinal symptoms that could compromise mission readiness.

“The absence of approved norovirus treatments or vaccines creates a critical unmet medical need,” he added. “Norovirus presents significant vaccine development challenges due to its high genetic variability and mutation rate. CDI-988’s mechanism of action targeting viral replication and its broad-spectrum coverage offers a promising solution as a potential prophylactic and therapeutic intervention across all norovirus genogroups including GII.4 and GII.17. This could be a new approach to outbreak prevention and management. We expect to initiate a Phase 1b challenge study with CDI-988 in norovirus-infected healthy subjects later this year.”

MHSRS is an annual educational symposium with approximately 4,000 attendees that provides a collaborative environment for military medical care providers with deployment experience, research and academic scientists, international partners and industry on research and related healthcare initiatives falling under the topic areas of combat casualty care, military operational medicine, clinical and rehabilitative medicine, information sciences, military infectious diseases and radiation health effects. More information is available here.

Pan-viral Protease Inhibitor CDI-988
CDI-988 was designed and developed with Cocrystal’s proprietary structure-based platform technology as a broad-spectrum inhibitor to a highly conserved region in the active site of 3CL viral proteases. Based on a novel mechanism of action and superior broad-spectrum antiviral activity, CDI-988 represents a compelling first potential oral treatment for noroviruses, and for coronaviruses.

Norovirus Infection
Norovirus is a common and highly contagious virus that afflicts people of all ages and causes symptoms of acute gastroenteritis including nausea, vomiting, stomach pain and diarrhea, as well as fatigue, fever and dehydration. Norovirus outbreaks occur most commonly in semi-closed communities such as hospitals, nursing homes, childcare facilities, cruise ships, schools and disaster relief sites. Norovirus infections are estimated to cost society approximately $60 billion annually worldwide.

Structure-Based Drug Discovery Platform Technology
Cocrystal’s proprietary structural biology, along with its expertise in enzymology and medicinal chemistry, enable its development of novel antiviral agents. The Company’s platform provides a three-dimensional structure of inhibitor complexes at near-atomic resolution, providing immediate insight to guide Structure Activity Relationships. This helps to identify novel binding sites and allows for a rapid turnaround of structural information through highly automated X-ray data processing and refinement. The goal of this technology is to facilitate the development of novel broad-spectrum antivirals for the treatment of acute and chronic viral diseases.

About Cocrystal Pharma, Inc.
Cocrystal Pharma, Inc. is a clinical-stage biotechnology company discovering and developing novel antiviral therapeutics that target the replication process of influenza viruses, coronaviruses (including SARS-CoV-2), noroviruses and hepatitis C viruses. Cocrystal employs unique structure-based technologies and Nobel Prize-winning expertise to create antiviral drugs. For further information about Cocrystal, please visit www.cocrystalpharma.com.

Cautionary Note Regarding Forward-Looking Statements
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including statements regarding the potential efficacy of CDI-988 as a potential breakthrough for norovirus prophylaxis and treatment, and the potential characteristics of and market for such product candidate and the Company’s plan to initiate a Phase 1b study in 2025. The words “believe,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “could,” “target,” “potential,” “is likely,” “will,” “expect” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events. Some or all of the events anticipated by these forward-looking statements may not occur. Important factors that could cause actual results to differ from those in the forward-looking statements include, but are not limited to, our need for additional capital to fund our operations over the next 12 months, risks relating to our ability to obtain regulatory approval for and proceed with clinical trials including recruiting volunteers and procuring materials for such studies by our clinical research organizations and vendors, the results of such studies, our and our collaboration partners’ technology and software performing as expected, general risks arising from clinical studies, receipt of regulatory approvals, regulatory changes, and potential development of effective treatments and/or vaccines by competitors, potential mutations in a virus we are targeting that may result in variants that are resistant to a product candidate we develop, the impact of the Trump Administration’s policies and actions on regulation affecting the FDA and other healthcare agencies and potential staffing issues resulting therefrom, as well as other government actions such as tariffs which may cause delays or force us to incur additional costs to proceed without development programs. Further information on our risk factors is contained in our filings with the SEC, including our Annual Report on Form 10-K for the year ended December 31, 2024. Any forward-looking statement made by us herein speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Investor Contact:
Alliance Advisors IR
Jody Cain
310-691-7100
jcain@allianceadvisors.com

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Source: Cocrystal Pharma, Inc.

Released August 5, 2025

Research News and Market Data on COCP

July 10, 2025

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BOTHELL, Wash., July 10, 2025 (GLOBE NEWSWIRE) — Cocrystal Pharma, Inc. (Nasdaq: COCP) announces that its first-in-class pan-viral protease inhibitor CDI-988 has been selected for an oral presentation at the 9^th International Calicivirus Conference being held September 7-11, 2025 in Banff, Alberta, Canada. Sam Lee, PhD, the Company’s President and co-CEO, will present “Oral Direct-Acting Antiviral CDI-988 for Norovirus Infection Prevention and Treatment: Mechanism of Action and Phase 1 Study Results” on September 11.

“This year’s Calicivirus Conference will bring together the world’s leading norovirus experts, making it the ideal venue to share our pan-viral protease inhibitor CDI-988 Phase 1 data and clinical development strategy,” said Dr. Lee. “Norovirus causes a highly contagious gastrointestinal illness, triggering severe vomiting and diarrhea, and has a substantial economic impact with a societal cost of approximately $60 billion each year globally according to the CDC. There is no approved vaccine or antiviral therapeutics for norovirus infection. We are encouraged by our molecule’s novel pan-viral activity against all noroviruses including GII.4 and GII.17 strains.”

Pan-Viral Inhibitor CDI-988
CDI-988 was designed and developed with Cocrystal’s proprietary structure-based platform technology as a broad-spectrum inhibitor to a highly conserved region in the active site of 3CL viral proteases. Based on a novel mechanism of action and superior broad-spectrum antiviral activity, CDI-988 represents a compelling first-in-class oral treatment for noroviruses, which are members of the calicivirus family, and for coronaviruses. Cocrystal has completed a single-center, randomized, double-blind, placebo-controlled Phase 1 study in healthy adults evaluating the safety, tolerability and pharmacokinetics of CDI-988, including a food effect cohort.

Structure-Based Platform Technology
Cocrystal’s proprietary structural biology, along with its expertise in enzymology and medicinal chemistry, enable its development of novel antiviral agents. The Company’s platform provides a three-dimensional structure of inhibitor complexes at near-atomic resolution, providing immediate insight to guide structure activity relationships. This helps to identify novel binding sites and allows for a rapid turnaround of structural information through highly automated X-ray data processing and refinement. The goal of this technology is to facilitate the development of best-in-class antiviral therapies that have fast onset of action or shortened treatment time, are safe, well tolerated and easy to administer, and are effective against all viral subtypes that cause disease and have a high barrier to viral resistance.

About the Calicivirus Conference
The International Calicivirus Conference is held every three years and unites scientists from across the globe who study calicivirus virology, evolution, pathogenesis, structural biology, diagnosis, epidemiology, treatment and prevention. The conference aims to foster open discussions, spark new collaborations and explore groundbreaking research. Delegates have the opportunity to engage with the latest advances in the field through state-of-the-art lectures, oral presentations and poster sessions.

About Cocrystal Pharma, Inc.
Cocrystal Pharma, Inc. is a clinical-stage biotechnology company discovering and developing novel antiviral therapeutics that target the replication process of influenza viruses, coronaviruses (including SARS-CoV-2), noroviruses and hepatitis C viruses. Cocrystal employs unique structure-based technologies and Nobel Prize-winning expertise to create first- and best-in-class antiviral drugs.

Cautionary Note Regarding Forward-Looking Statements
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including statements regarding the potential for the Company’s CDI-988 product candidate as a treatment for norovirus. The words “believe,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “could,” “target,” “potential,” “is likely,” “will,” “expect” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events. Some or all of the events anticipated by these forward-looking statements may not occur. Important factors that could cause actual results to differ from those in the forward-looking statements include, but are not limited to, our need for additional capital to fund our operations over the next 12 months, risks relating to our ability to obtain regulatory approval for and proceed with clinical trials including recruiting volunteers and procuring materials for such studies by our clinical research organizations and vendors, the results of such studies, our and our collaboration partners’ technology and software performing as expected, general risks arising from clinical studies, regulatory changes, and potential development of effective treatments and/or vaccines by competitors, potential mutations in a virus we are targeting that may result in variants that are resistant to a product candidate we develop, the impact of the Trump Administration’s policies and actions on regulation affecting the FDA and other healthcare agencies and potential staffing issues resulting therefrom, as well as other government actions such as tariffs which may cause delays or force us to incur additional costs to proceed without development programs. Further information on our risk factors is contained in our filings with the SEC, including our Annual Report on Form 10-K for the year ended December 31, 2024. Any forward-looking statement made by us herein speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Investor Contact:
Alliance Advisors IR
Jody Cain
310-691-7100
jcain@allianceadvisors.com

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Source: Cocrystal Pharma, Inc.

Research News and Market Data on COCP

May 29, 2025

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• CC-42344 was shown to be highly active against the highly pathogenic 2024 Texas H5N1 avian influenza strain
• The Company’s virology study further confirmed the previous structural and in vitro data that revealed the binding of CC-42344 to PB2 protein of the 2024 H5N1 avian influenza virus

BOTHELL, Wash., May 29, 2025 (GLOBE NEWSWIRE) — Cocrystal Pharma, Inc. (Nasdaq: COCP) announces that a recent virology study showed its novel, broad-spectrum influenza PB2 inhibitor CC-42344 exhibits strong antiviral activity against the highly pathogenic H5N1 avian influenza A strain (A/Texas/37/2024).

On March 25, 2024, the highly pathogenic avian H5N1 influenza virus was confirmed in a dairy cow in Texas and has continued to spread widely in U.S. dairy cattle, causing a few human cases. There is concern that the H5N1 virus could adapt for human-to-human transmission and potentially result in an influenza pandemic. CC-42344 is a new investigational drug candidate for the treatment of pandemic and seasonal influenza infections. This inhibitor binds to a highly conserved active site of the PB2 protein and inhibits the viral replication process. The Company previously announced the structural and in vitro data of CC-42344 with the purified H5N1 PB2 protein.

The virology study utilized the highly pathogenic H5N1 avian strain (influenza A/Texas/37/2024) and was conducted to test antiviral activity of CC-42344 using Tamiflu^® as a reference inhibitor. The data showed that CC-42344 was highly potent against the H5N1 avian influenza virus (EC50, 0.003 µM), approximately 1,000-fold more potent, compared to a refence compound Tamiflu (EC50, 2.69 µM). CC-42344 is currently in development as an oral treatment for pandemic avian and seasonal influenza A infections with initial data showing a favorable safety and tolerability profile.

“We are excited to share these H5N1 results that further validate our structure-based drug discovery platform technology and strengthen our position in developing treatments for influenza infection,” said Sam Lee, PhD, President and co-CEO of Cocrystal Pharma. “These important antiviral data along with the favorable safety profile observed in a Phase 1 study support further clinical evaluation of CC-42344 for pandemic and seasonal flu.”

“We are developing a therapeutic candidate with the potential to address the multibillion-dollar influenza market,” said James Martin, CFO and co-CEO of Cocrystal Pharma. “Influenza is a major global health concern that may become more challenging to treat as highly pathogenic avian viruses emerge and become resistant to approved antivirals. On average, in the U.S. about 8% of the population contracts influenza each season and influenza is responsible for an estimated $11.2 billion in direct and indirect costs annually.”

Avian Influenza
A multistate outbreak of highly pathogenic avian influenza in dairy cows was initially reported in March 2024 and was the first time that avian flu viruses were found in cows. In April 2024 the Centers for Disease Control and Prevention (CDC) confirmed an avian flu infection in a person exposed to dairy cows that were presumed to be infected with the virus. This is believed to be the first instance of likely mammal-to-human spread of this virus. In September 2024 the CDC reported the first human case of avian influenza without a known occupational exposure to sick or infected animals.

The CDC analyzed blood collected from people of all ages in all 10 Department of Health and Human Services regions during the 2022-2023 and 2021-2022 flu seasons. These samples were challenged with the avian flu subtype H5N1 virus to determine whether there was an antibody reaction. Data from this study suggest that there is extremely low to no population immunity to clade 2.3.4.4b A (H5N1) viruses in the U.S. Antibody levels remained low regardless of whether or not participants received a seasonal flu vaccination, meaning that seasonal flu vaccination did not produce antibodies to avian flu H5N1 viruses.

About Cocrystal Pharma, Inc.
Cocrystal Pharma, Inc. is a clinical-stage biotechnology company discovering and developing novel antiviral therapeutics that target the replication process of influenza viruses, coronaviruses (including SARS-CoV-2), noroviruses and hepatitis C viruses. Cocrystal employs unique structure-based technologies and Nobel Prize-winning expertise to create first- and best-in-class antiviral drugs. For further information about Cocrystal, please visit www.cocrystalpharma.com.

Cautionary Note Regarding Forward-Looking Statements
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including statements regarding the potential efficacy of CC-42344 against influenza including the avian influenza A H5N1 virus and the potential market for such product candidate. The words “believe,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “could,” “target,” “potential,” “is likely,” “will,” “expect” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events. Some or all of the events anticipated by these forward-looking statements may not occur. Important factors that could cause actual results to differ from those in the forward-looking statements include, but are not limited to, risks relating to our ability to obtain regulatory authority for and proceed with clinical trials including our plans to complete a Phase 2a study for CC-42344, the results of such studies, our and our collaboration partners’ technology and software performing as expected, general risks arising from clinical studies, receipt of regulatory approvals, regulatory changes including based on initiatives and actions taken by the Trump Administration which could, among other things, result in delays in regulatory approvals or limit access to federal funding for our programs, and potential development of effective treatments and/or vaccines by competitors and potential mutations in a virus we are targeting that may result in variants that are resistant to a product candidate we develop. Further information on our risk factors is contained in our filings with the SEC, including our Annual Report on Form 10-K for the year ended December 31, 2024. Any forward-looking statement made by us herein speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Investor Contact:
Alliance Advisors IR
Jody Cain
310-691-7100
jcain@allianceadvisors.com

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Source: Cocrystal Pharma, Inc.

Released May 29, 2025

Research News and Market Data on COCP

May 15, 2025

In vitro testing with CDI-988 demonstrated superior broad-spectrum antiviral activity against major norovirus variants

BOTHELL, Wash., May 15, 2025 (GLOBE NEWSWIRE) — Cocrystal Pharma, Inc. (Nasdaq: COCP) (“Cocrystal” or the “Company”) reports financial results for the three months ended March 31, 2025, and provides updates on its antiviral product pipeline, upcoming milestones and business activities.

“Our oral pan-viral protease inhibitor CDI-988 is a potential breakthrough first-in-class treatment and prophylaxis for norovirus, a debilitating gastrointestinal infection that strikes millions globally each year,” said Sam Lee, Ph.D., President and co-CEO of Cocrystal. “By precisely targeting the virus’ core replication machinery, we believe CDI-988 effectively combats all major strains of this highly contagious pathogen with exceptional in vitro activity demonstrated against the current circulating GII.17 and GII.4 strains. We’re preparing to launch a U.S. human challenge study in the coming months – a critical step in advancing this transformative therapy to patients worldwide.

“Our novel, broad-spectrum drug candidates have the potential to fundamentally transform how we fight viral threats worldwide,” said James Martin, CFO and co-CEO of Cocrystal. “We’re advancing development of these assets for multibillion-dollar markets while remaining committed to a capital-efficient business model to maximize shareholder value.”

Antiviral Product Pipeline Overview

We harness our revolutionary structure-based drug discovery platform technology to engineer next-generation, broad-spectrum antivirals that precisely disrupt viral replication mechanisms. Unlike traditional approaches, our platform technology identifies compounds that bind to highly conserved regions of viral enzymes, thereby creating a formidable defense against current viral threats as well as their mutations. By specifically targeting these evolutionary-constrained viral regions, our candidates maintain efficacy even as viruses mutate, while simultaneously minimizing off-target interactions that typically lead to adverse side effects. This dual advantage represents a significant breakthrough in antiviral drug development. Our innovative methodology fundamentally transforms the conventional drug discovery paradigm by eliminating the inefficient, resource-intensive cycles of high-throughput compound screening and prolonged hit-to-lead optimization. The result is faster identification of promising candidates with superior resistance profiles and safety characteristics.

Influenza Programs
Influenza is a major global health threat that may become more challenging to treat due to the emergence of highly pathogenic avian influenza viruses and resistance to approved influenza antivirals. Each year there are approximately 1 billion cases of seasonal influenza worldwide, 3-5 million severe illnesses and up to 650,000 deaths. On average, about 8% of the U.S. population contracts influenza each season. In addition to the health risk, influenza is responsible for an estimated $11.2 billion in direct and indirect costs in the U.S. annually.

• Oral CC-42344 for the treatment of pandemic and seasonal influenza A
  • Our novel PB2 inhibitor CC-42344 showed excellent in vitro activity against pandemic and seasonal influenza A strains, as well as strains that are resistant to Tamiflu^® and Xofluza^®.
  • In December 2022 we reported favorable safety and tolerability results from the oral CC-42344 Phase 1 study.
  • In December 2023 we began a randomized, double-blind, placebo-controlled Phase 2a human challenge study to evaluate the safety, tolerability, viral and clinical measurements of CC-42344 in influenza A-infected subjects in the United Kingdom, following authorization from the UK Medicines and Healthcare Products Regulatory Agency (MHRA).
  • In May 2024 we completed enrollment in the Phase 2a human challenge study.
  • In June 2024 we reported that in vitro studies demonstrated CC-42344 inhibits the activity of the highly pathogenic avian influenza A (H5N1) PB2 protein identified in humans exposed to infected dairy cows.
  • In December 2024 we announced a plan to extend the CC-42344 Phase 2a human challenge study due to unexpectedly low influenza infection among study participants.
    
• Inhaled CC-42344 as prophylaxis and treatment for pandemic and seasonal influenza A
  • Our preclinical testing showed superior pulmonary pharmacology with CC-42344, including high exposure to drug and a long half-life.
  • Dry powder inhalation formulation development and toxicology studies have been completed.
    
• Influenza A/B program
  • Our efforts to develop a preclinical lead of novel influenza replication inhibitors are ongoing.

Norovirus Program
Norovirus is a common and highly contagious virus that causes symptoms of acute gastroenteritis among people of all ages including nausea, vomiting, stomach pain and diarrhea as well as fatigue, fever and dehydration. Norovirus infection can be significantly more severe and prolonged in specific risk groups including infants, children, the elderly and people with immunodeficiency. Norovirus outbreaks occur most commonly in semi-closed communities and have become notorious for their occurrence in hospitals, nursing homes, childcare facilities, cruise ships, schools, disaster relief sites and military settings.

In the U.S. alone, noroviruses are responsible for an estimated 21 million cases annually, including 109,000 hospitalizations, 465,000 emergency department visits and an estimated 900 deaths. The annual burden of norovirus to the U.S. is estimated at $10.6 billion. Noroviruses are responsible for up to 1.1 million hospitalizations and 218,000 deaths annually in children in the developing world. There is currently no effective treatment or effective vaccine for norovirus, and the ability to curtail outbreaks is limited.

• Oral pan-viral protease inhibitor CDI-988 for the treatment of noroviruses and coronaviruses
  • Our novel, broad-spectrum protease inhibitor CDI-988 is being evaluated as a potential oral treatment for noroviruses and coronaviruses.
  • CDI-988 has shown in vitro pan-viral activity against multiple norovirus strains.
  • In May 2023 we announced approval of our application to the Australian regulatory agency for a randomized, double-blind, placebo-controlled Phase 1 study to evaluate the safety, tolerability and pharmacokinetics (PK) of oral CDI-988 in healthy subjects.
  • In August 2023 we announced our selection of CDI-988 as our lead compound for the oral treatment for noroviruses, in addition to coronaviruses.
  • In July 2024 we reported favorable safety and tolerability results from the single-ascending dose cohorts in the Phase 1 study.
  • In December 2024 we reported favorable safety and tolerability results from the multiple-ascending dose cohorts of the Phase 1 study and the addition of a high-dose cohort.
  • In April 2025 we announced that CDI-988 showed superior broad-spectrum antiviral activity against GII.17 strains, the most prevalent strain in the U.S. and European countries in 2024-2025.
  • We expect to report topline oral CDI-988 Phase 1 results from the high-dose healthy subject cohort in the second quarter of 2025.
  • We plan to initiate a human challenge study in the U.S. in the coming months to evaluate CDI-988 as a norovirus treatment and prophylaxis.

SARS-CoV-2 and Other Coronavirus Program
By targeting viral replication enzymes and proteases, we believe it is possible to develop effective treatments for all diseases caused by coronaviruses including SARS-CoV-2 and its variants, Severe Acute Respiratory Syndrome (SARS) and Middle East Respiratory Syndrome (MERS). CDI-988 showed potent in vitro pan-viral activity against common human coronaviruses, rhinoviruses and respiratory enteroviruses, as well as against noroviruses. The global COVID-19 therapeutics market is estimated to exceed $16 billion annually by the end of 2031.

• Oral pan-viral protease inhibitor CDI-988 for the treatment of coronaviruses and noroviruses
  • CDI-988 exhibited superior in vitro potency against SARS-CoV-2 and demonstrated a favorable safety profile and PK properties.
  • In September 2023 we dosed the first healthy subject in our dual pan-norovirus/pan-coronavirus oral CDI-988 study, which is expected to serve as a Phase 1 study for both indications.
  • In July 2024 we reported favorable safety and tolerability results from the single-ascending dose cohorts in the Phase 1 study.
  • In December 2024 we reported favorable safety and tolerability results from the multiple-ascending dose cohorts of the Phase 1 study and the addition of a high-dose cohort.
  • We expect to report topline oral CDI-988 Phase 1 results from the high-dose healthy subject cohort in the second quarter of 2025.

First Quarter Financial Results

Research and development (R&D) expenses for the first quarter of 2025 were $1.4 million, compared with $3.0 million for the first quarter of 2024, with the decrease primarily due to a reduction in personnel costs and the timing of clinical study costs. General and administrative (G&A) expenses for the first three months of 2025 were $1.0 million, compared with $1.2 million for the first three months of 2024, with the decrease primarily due to a reduction in insurance costs and other expenses.

Net loss for the first quarter of 2025 was $2.3 million, or $0.23 per share, compared with net loss for the first quarter of 2024 of $4.0 million, or $0.39 per share.

Cocrystal reported unrestricted cash as of March 31, 2025 of $6.9 million, compared with $9.9 million as of December 31, 2024. Net cash used in operating activities for the first quarter of 2025 was $2.9 million, compared with $4.5 million for the first quarter of 2024. The Company had working capital of $6.9 million and 10.2 million common shares outstanding as of March 31, 2025.

About Cocrystal Pharma, Inc.

Cocrystal Pharma, Inc. is a clinical-stage biotechnology company discovering and developing novel antiviral therapeutics that target the replication process of influenza viruses, coronaviruses (including SARS-CoV-2), noroviruses and hepatitis C viruses. For further information about Cocrystal, please visit www.cocrystalpharma.com.

Cautionary Note Regarding Forward-Looking Statements
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including statements regarding our plans for the future development of preclinical and clinical product candidates including the potential of our norovirus product candidate, our plans to initiate a human challenge study for our norovirus product candidate, and our plans with regard to initiating a second human challenge study for CC-42344 The words “believe,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “could,” “target,” “potential,” “is likely,” “will,” “expect” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events. Some or all of the events anticipated by these forward-looking statements may not occur. Important factors that could cause actual results to differ from those in the forward-looking statements include, but are not limited to, the risks and uncertainties arising from our need for additional capital to fund our operations over the next 12 months, inflation, the possibility of a recession, interest rate increases, imposed and threated tariffs, and geopolitical conflicts including those in Ukraine and Israel on our Company, our collaboration partners, and on the U.S., UK, Australia and global economies, including manufacturing and research delays arising from raw materials and labor shortages, supply chain disruptions and other business interruptions including any adverse impacts on our ability to obtain raw materials for and otherwise proceed with studies as well as similar problems with our vendors and our current and any future clinical research organization (CROs) and contract manufacturing organizations (CMOs), the progress and results of the studies for CC-42344 and CDI-988 including the delay of the Phase 2a study for CC-42344 which may require us to incur substantial additional costs, the ability of us and our CROs to recruit volunteers for, and to otherwise proceed with, clinical studies, our and our collaboration partners’ technology and software performing as expected, financial difficulties experienced by certain partners, the results of any current and future preclinical and clinical studies, general risks arising from clinical studies, receipt of regulatory approvals, regulatory changes including potential downward pressure on government spending on the biopharmaceutical and healthcare industry based on policies and actions taken by the Trump Administration in the U.S., the impact of the Trump Administration’s policies and actions on regulation affecting the FDA and other healthcare agencies and potential staffing issues resulting therefrom, potential mutations in a virus we are targeting that may result in variants that are resistant to a product candidate we develop, the potential for the development of effective treatments by competitors which could reduce or eliminate a prospective future market share commercializing any product candidates we may develop in the future, and our ability to meet our future liquidity needs. Further information on our risk factors is contained in our filings with the SEC, including the “Risk Factors” in Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2024. Any forward-looking statement made by us herein speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Investor Contact:
Alliance Advisors IR
Jody Cain
310-691-7100
jcain@allianceadvisors.com

View full release here.

Research News and Market Data on COCP

April 24, 2025

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• Norovirus GII.17 variants have overtaken GII.4 as the most prevalent strain and significantly increased norovirus outbreaks in the U.S. and European countries in 2024-2025
• Cocrystal Pharma’s pan-viral protease inhibitor CDI-988 shows superior broad-spectrum antiviral activity against major norovirus variants including GII.4 and GII.17 strains
• Company reported favorable safety and tolerability of CDI-988 in Phase 1 and plans to initiate a human challenge study in 2025 for the treatment and prevention of norovirus infection

BOTHELL, Wash., April 24, 2025 (GLOBE NEWSWIRE) — Cocrystal Pharma, Inc. (Nasdaq: COCP) (“Cocrystal” or the “Company”) announces that its investigative drug candidate CDI-988 was shown to bind to the highly conserved region of the GII.17 protease with excellent potency, similar to that shown across a range of GII.4 norovirus variants that had been the dominant worldwide strains until this year. The high resolution GII.17 protease crystal structures used in determining CDI-988’s activity were obtained using the Company’s proprietary structure-based platform technology. Cocrystal plans to initiate a human norovirus challenge study in 2025 in the U.S. to evaluate CDI-988 as a potential prevention and treatment of norovirus infection.

“Norovirus is the most common cause of acute gastroenteritis worldwide, yet there are no approved antiviral treatments or vaccines available to combat it,” said Sam Lee, Ph.D., Cocrystal’s President and co-CEO. “Norovirus antiviral and vaccine development has been extremely challenging due to high diversity among variants that include 10 genogroups and 49 genotypes. We are gratified to have determined the first crystal structure of GII.17 protease and demonstrated broad-spectrum antiviral activity of CDI-988 against newly circulating major norovirus GII.17 variants. Based on a novel mechanism of action and superior broad-spectrum antiviral activity, CDI-988 is a compelling candidate for advancement as a first-in-class oral antiviral to be used for both prevention and treatment of norovirus infection.”

“Norovirus is a noteworthy research target considering that each year an estimated 685 million cases and approximately 50,000 child deaths are attributed to this virus worldwide, leading to a societal cost estimated at $60 billion,” said James Martin, Cocrystal’s CFO and co-CEO. “We are addressing the urgent need for norovirus and other emerging viral outbreaks through our platform technology that facilitates the rapid, efficient development of potentially highly effective and safe direct-acting antivirals.”

Pan-Viral Inhibitor CDI-988
CDI-988 is a protease inhibitor specifically designed and developed as a broad-spectrum antiviral inhibitor to a highly conserved region in the active site of 3CL viral proteases. Based on a novel mechanism of action and superior broad-spectrum antiviral activity, CDI-988 is a compelling candidate for advancement as a first-in-class oral treatment for both noroviruses and coronaviruses. The Company has completed a single-center, randomized, double-blind Phase 1 study in healthy adults evaluating safety, tolerability and pharmacokinetics including a food-effect cohort of orally administered CDI-988 compared with placebo.

Structure-Based Platform Technology
Cocrystal’s proprietary structural biology, along with its expertise in enzymology and medicinal chemistry, enable its development of novel antiviral agents. The Company’s platform provides a three-dimensional structure of inhibitor complexes at near-atomic resolution, providing immediate insight to guide Structure Activity Relationships. This helps to identify novel binding sites and allows for a rapid turnaround of structural information through highly automated X-ray data processing and refinement. The goal of this technology is to facilitate the development of best-in-class antiviral therapies that have fast onset of action and/or shortened treatment time, are safe, well tolerated and easy to administer, are effective against all viral subtypes that cause disease and have a high barrier to viral resistance.

About Cocrystal Pharma, Inc.
Cocrystal Pharma, Inc. is a clinical-stage biotechnology company discovering and developing novel antiviral therapeutics that target the replication process of noroviruses, influenza viruses, coronaviruses (including SARS-CoV-2), and hepatitis C viruses. Cocrystal employs unique structure-based technologies and Nobel Prize-winning expertise to create first- and best-in-class antiviral drugs. For further information about Cocrystal, please visit www.cocrystalpharma.com.

Cautionary Note Regarding Forward-Looking Statements
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including statements regarding Cocrystal’s plans to initiate a human challenge study in 2025 for its oral norovirus product candidate, the potential efficacy of such product candidate, and the potential market for such product candidate. The words “believe,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “could,” “target,” “potential,” “is likely,” “will,” “expect” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events. Some or all of the events anticipated by these forward-looking statements may not occur. Important factors that could cause actual results to differ from those in the forward-looking statements include, but are not limited to, our need for additional capital to fund our operations over the next 12 months, risks relating to our ability to obtain regulatory authority for and proceed with clinical trials including the recruiting of volunteers for such studies by our clinical research organizations and vendors, the results of such studies, our collaboration partners’ technology and software performing as expected, general risks arising from clinical studies, receipt of regulatory approvals, regulatory changes, and potential development of effective treatments and/or vaccines by competitors, and potential mutations in a virus we are targeting that may result in variants that are resistant to a product candidate we develop, the impact of the Trump Administration’s policies and actions on regulations affecting the FDA and other healthcare agencies and potential staffing issues resulting therefrom, as well as other government actions such as tariffs which may cause delays or force us to incur additional costs to proceed with our development programs. Further information on our risk factors is contained in our filings with the SEC, including our Annual Report on Form 10-K for the year ended December 31, 2024. Any forward-looking statement made by us herein speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Contact:
Alliance Advisors IR
Jody Cain
310-691-7100
jcain@allianceadvisors.com

# # #

Source: Cocrystal Pharma, Inc.

Released April 24, 2025

Research News and Market Data on COCP

March 31, 2025

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BOTHELL, Wash., March 31, 2025 (GLOBE NEWSWIRE) — Cocrystal Pharma, Inc. (Nasdaq: COCP) (“Cocrystal” or the “Company”) reports financial results for the 12 months ended December 31, 2024, and provides updates on its antiviral product pipeline, upcoming milestones and business activities.

“Our novel, potent antiviral compounds for norovirus, influenza and coronavirus address critical gaps in global health where effective treatments or vaccines are currently lacking,” said Sam Lee, Ph.D., President and co-CEO of Cocrystal. “We plan to initiate a norovirus human challenge study in the U.S. later this year to evaluate our pan-viral protease inhibitor CDI-988 for the potential treatment and prevention of norovirus infection. The big surge in reported norovirus outbreaks is possibly due to norovirus variants switching from GII.4 to GII.17, as well as increased social gathering after the COVID-19 pandemic. Norovirus is the most common cause of acute gastroenteritis and there are no approved therapeutics or vaccines, making it a compelling target.

“We are optimistic that our oral PB2 inhibitor CC-42344 will have potential as a treatment for seasonal influenza A infection and pandemic avian influenza,” he added. “Following the unexpected low infection rate from the Phase 2a challenge study that precluded us from obtaining meaningful human efficacy data, we plan to continue the influenza challenge study.”

“News coverage in recent months of norovirus and avian flu outbreaks underscore the urgent need for new antiviral solutions,” said James Martin, CFO and co-CEO of Cocrystal. “We are advancing our first- and best-in-class antiviral drug compounds that were designed using our Nobel Prize-winning structure-based technologies for these high-value viral targets that address multibillion-dollar markets.”

Antiviral Product Pipeline Overview

We apply our proprietary structure-based drug discovery platform technology for developing broad-spectrum antivirals that inhibit viral replication. By designing and selecting candidates that target highly conserved regions of the viral enzymes, we seek to develop drugs that are effective against the virus and mutations of the virus, while reducing off-target interactions that may cause undesirable side effects. Our drug discovery process differs from traditional, empirical medicinal chemistry approaches that often require iterative high-throughput compound screening and lengthy hit-to-lead processes.

Influenza Programs

Influenza is a major global health threat that may become more challenging to treat due to the emergence of highly pathogenic avian influenza viruses and resistance to approved influenza antivirals. Each year there are approximately 1 billion cases of seasonal influenza worldwide, 3-5 million severe illnesses and up to 650,000 deaths. On average, about 8% of the U.S. population contracts influenza each season. In addition to the health risk, influenza is responsible for an estimated $11.2 billion in direct and indirect costs in the U.S. annually.

• Oral CC-42344 for the treatment of pandemic and seasonal influenza A
  • Our novel PB2 inhibitor CC-42344 showed excellent in vitro antiviral activity against pandemic and seasonal influenza A strains, as well as strains that are resistant to Tamiflu^® and Xofluza^®.
  • In December 2022 we reported favorable safety and tolerability results from the oral CC-42344 Phase 1 study.
  • In December 2023 we began a randomized, double-blind, placebo-controlled Phase 2a human challenge study to evaluate the safety, tolerability, viral and clinical measurements of CC-42344 in influenza A-infected subjects in the United Kingdom, following authorization from the UK Medicines and Healthcare Products Regulatory Agency (MHRA).
  • In May 2024 we completed enrollment in the Phase 2a human challenge study.
  • In June 2024 we reported that in vitro studies demonstrated CC-42344 inhibits the activity of the highly pathogenic avian influenza A (H5N1) PB2 protein identified in humans exposed to infected dairy cows.
  • In December 2024 we announced a plan to extend the CC-42344 human challenge study due to unexpectedly low influenza infection among study participants.
    
• Inhaled CC-42344 as prophylaxis and treatment for pandemic and seasonal influenza A
  
  • Our preclinical testing showed superior pulmonary pharmacology with CC-42344 including high exposure to drug and a long half-life.
  • We have completed CC-42344 inhalation formulation development and GLP toxicology studies.
    
• Influenza A/B program
  
  • Our efforts to develop a preclinical lead of novel influenza replication inhibitors are ongoing.

Norovirus Program

Norovirus symptoms can include severe nausea, vomiting and diarrhea. An estimated 685 million cases and an estimated 50,000 child deaths worldwide are attributed to norovirus each year, with an estimated societal cost of $60 billion. By targeting viral replication, we believe it is possible to develop an effective treatment and/or prophylaxis for closed environments for all genogroups of norovirus.

• Oral pan-viral protease inhibitor CDI-988 for the treatment of noroviruses and coronaviruses
  • Our novel, broad-spectrum protease inhibitor CDI-988 is being evaluated as a potential oral treatment for noroviruses and coronaviruses.
  • CDI-988 has shown in vitro pan-viral activity against multiple norovirus strains.
  • In May 2023 we announced approval of our application to the Australian regulatory agency for a randomized, double-blind, placebo-controlled Phase 1 study to evaluate the safety, tolerability and pharmacokinetics (PK) of oral CDI-988 in healthy volunteers.
  • In August 2023 we announced our selection of CDI-988 as our lead compound for the oral treatment for noroviruses, in addition to coronaviruses.
  • In July 2024 we reported favorable safety and tolerability results from the single-ascending dose cohorts in the Phase 1 study.
  • In December 2024 we reported favorable safety and tolerability results from the multiple-ascending dose cohorts of the Phase 1 study and the addition of a higher-dose cohort.
  • We expect to report topline results from the high-dose healthy volunteer cohort with CDI-988 in the second quarter of 2025.
  • We plan to initiate a human challenge study in the U.S. in 2025 to evaluate CDI-988 as a norovirus treatment and prophylaxis.

SARS-CoV-2 and Other Coronavirus Programs

By targeting viral replication enzymes and proteases, we believe it is possible to develop effective treatments for all diseases caused by coronaviruses including SARS-CoV-2 and its variants, Severe Acute Respiratory Syndrome (SARS) and Middle East Respiratory Syndrome (MERS). CDI-988 showed potent in vitro pan-viral activity against common human coronaviruses, rhinoviruses and respiratory enteroviruses, as well as against noroviruses. The global COVID-19 therapeutics market is estimated to exceed $16 billion annually by the end of 2031.

• Oral pan-viral protease inhibitor CDI-988 for the treatment of coronaviruses and noroviruses
  • CDI-988 exhibited superior in vitro potency against SARS-CoV-2 and demonstrated a favorable safety profile and PK properties.
  • In September 2023 we dosed the first healthy subject in our dual pan-norovirus/pan-coronavirus oral CDI-988 study, which is expected to serve as a Phase 1 study for both indications.
  • In July 2024 we reported favorable safety and tolerability results from the single-ascending dose cohort in the Phase 1 study.
  • In December 2024 we reported favorable safety and tolerability results from the multiple-ascending dose cohorts of the Phase 1 study and the addition of a higher-dose cohort.
  • We expect to report topline results from the higher dose cohort in the CDI-988 Phase 1 study in the second quarter of 2025.

2024 Financial Results

Research and development (R&D) expenses for 2024 were $12.5 million, compared with $15.2 million for 2023. The decrease was primarily due to the timing of clinical study costs. General and administrative (G&A) expenses for 2024 were $5.3 million, compared with $6.0 million for 2023, with the $0.7 million decrease primarily due to a reduction of insurance costs and other expenses.

During 2023 the Company received $2.6 million related to litigation with an insurer.

The net loss for 2024 was $17.5 million, or $1.72 per share, compared with the net loss for 2023 of $18.0 million, or $1.87 per share. For 2024 the year over-year-net loss was reduced by $3.1 million exclusive of the $2.6 million received in 2023 noted above.

Cocrystal reported unrestricted cash as of December 31, 2024 of $9.9 million, compared with $26.4 million as of December 31, 2023. Net cash used in operating activities for 2024 was $16.5 million, compared with $14.7 million for 2023. The Company had working capital of $9.2 million and 10.2 million common shares outstanding as of December 31, 2024.

About Cocrystal Pharma, Inc.

Cocrystal Pharma, Inc. is a clinical-stage biotechnology company discovering and developing novel antiviral therapeutics that target the replication process of influenza viruses, coronaviruses (including SARS-CoV-2), noroviruses and hepatitis C viruses. For further information about Cocrystal, please visit www.cocrystalpharma.com.

Cautionary Note Regarding Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including statements regarding our plans for the future development of preclinical and clinical product candidates, our expectations regarding future characteristics of the product candidates we develop, the expected time of achieving certain value-driving milestones in our programs, including preparation, commencement and advancement of clinical studies for certain product candidates in 2025, our plans regarding further clinical development of such product candidates, and the viability and efficacy of potential treatments for diseases our product candidates are designed to treat, and expectations for the markets for certain therapeutics. The words “believe,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “could,” “target,” “potential,” “is likely,” “will,” “expect” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events. Some or all of the events anticipated by these forward-looking statements may not occur. Important factors that could cause actual results to differ from those in the forward-looking statements include, but are not limited to, the risks and uncertainties arising from our need for additional capital to fund our operations over the next 12 months, inflation, the possibility of a recession, interest rate increases, imposed and threated tariffs, and geopolitical conflicts including those in Ukraine and Israel on our Company, our collaboration partners, and on the U.S., UK, Australia and global economies, including manufacturing and research delays arising from raw materials and labor shortages, supply chain disruptions and other business interruptions including any adverse impacts on our ability to obtain raw materials for and otherwise proceed with studies as well as similar problems with our vendors and our current and any future clinical research organization (CROs) and contract manufacturing organizations (CMOs), the progress and results of the studies for CC-42344 and CDI-988 including the delay of the Phase 2a study for CC-42344 which may require us to incur substantial additional costs, the ability of us and our CROs to recruit volunteers for, and to otherwise proceed with, clinical studies, our and our collaboration partners’ technology and software performing as expected, financial difficulties experienced by certain partners, the results of any current and future preclinical and clinical studies, general risks arising from clinical studies, receipt of regulatory approvals, regulatory changes including potential downward pressure on government spending on the biopharmaceutical and healthcare industry based on policies and actions taken by the Trump Administration in the U.S., the impact of the Trump Administration’s policies and actions on regulation affecting the FDA and other healthcare agencies and potential staffing issues resulting therefrom, potential mutations in a virus we are targeting that may result in variants that are resistant to a product candidate we develop, and the potential for the development of effective treatments by competitors which could reduce or eliminate a prospective future market share commercializing any product candidates we may develop in the future. Further information on our risk factors is contained in our filings with the SEC, including the “Risk Factors” in Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2024. Any forward-looking statement made by us herein speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Investor Contact:
Alliance Advisors IR
Jody Cain
310-691-7100
jcain@allianceadvisors.com

View Full Release Here.

Research News and Market Data on COCP

January 08, 2025

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• Data show favorable safety and tolerability with dosing up to 800 mg for 10 days
• Plans to initiate human challenge study in 2025 in norovirus-infected subjects

BOTHELL, Wash., Jan. 08, 2025 (GLOBE NEWSWIRE) — Cocrystal Pharma, Inc. (Nasdaq: COCP) (“Cocrystal” or the “Company”) announces favorable safety and tolerability results at dosing up to 800 mg per day for 10 consecutive days from the multiple-ascending dose (MAD) portion of the ongoing Phase 1 study with its oral protease inhibitor CDI-988, the first pan-viral drug candidate in development as an orally administered treatment of norovirus and coronavirus infections. The Company also announces that an additional cohort with a higher dose of 1,200 mg and a shorter treatment duration of five consecutive days will be conducted to further assess CDI-988’s safety, tolerability and pharmacokinetics.

“Norovirus outbreaks are surging across the U.S. as well as on cruise ships with nearly 900 passengers sickened from gastrointestinal disease in December alone,” said Sam Lee, Ph.D., Cocrystal’s President and co-CEO. “There are currently no approved antivirals or vaccines for norovirus and the ability to curtail outbreaks is limited, making norovirus infection a significant unmet need. We are pleased to report positive Phase 1 results with these data demonstrating that CDI-988 had a favorable safety profile and was well-tolerated, supporting further clinical advancement of this potentially first effective norovirus antiviral.

“CDI-988 is our first pan-viral protease inhibitor with the potential to be used for prophylaxis and treatment for norovirus and coronavirus infections. We look forward to making a significant impact on norovirus outbreaks with this development candidate,” he added. “We expect to begin enrollment in the Phase 1 study higher-dose cohort in the current quarter and to initiate a human challenge study in norovirus-infected subjects later in 2025.”

CDI-988 is a potent, oral, broad-spectrum antiviral inhibitor of a highly conserved region in the active site of noroviruses, coronaviruses and other 3CL viral proteases. It was specifically designed and developed using Cocrystal’s proprietary structure-based drug discovery platform technology. CDI-988 has shown pan-viral activity against multiple norovirus strains, including the genogroup II, genotype 4 (GII.4) viruses that cause severe vomiting, diarrhea and stomach pain.

About Noroviruses

Human noroviruses are highly contagious, constantly evolving, extremely stable in the environment and associated with debilitating illness. Outbreaks occur most commonly in semi-closed communities such as nursing homes, hospitals, cruise ships, schools, disaster relief sites and military settings. Symptoms include vomiting and diarrhea, with or without nausea and abdominal cramps. Norovirus infection can be much more severe and prolonged in specific risk groups including infants, children, the elderly and people with immunodeficiency.

According to the Centers for Disease Control and Prevention (CDC), an estimated 685 million cases and an estimated 200,000 deaths are attributed to norovirus each year worldwide, with an estimated societal cost of approximately $60 billion. In the U.S. alone, noroviruses are responsible for an estimated 21 million cases of acute gastroenteritis annually, including 109,000 hospitalizations, 465,000 emergency department visits and nearly 900 deaths. The estimated annual burden of noroviruses to the U.S. is $10.6 billion, according to the National Institutes of Health (NIH).

Structure-Based Platform Technology

Cocrystal’s proprietary structural biology, along with its expertise in enzymology and medicinal chemistry, enable its development of novel antiviral agents. The Company’s platform provides a three-dimensional structure of inhibitor complexes at near-atomic resolution, providing immediate insight to guide Structure Activity Relationships. This helps to identify novel binding sites and allows for a rapid turnaround of structural information through highly automated X-ray data processing and refinement. The goal of this technology is to facilitate the development of best-in-class antiviral therapies that have fast onset of action and/or shortened treatment time, are safe, well tolerated and easy to administer, are effective against all viral subtypes that cause disease and have a high barrier to viral resistance.

About Cocrystal Pharma, Inc.

Cocrystal Pharma, Inc. is a clinical-stage biotechnology company discovering and developing novel antiviral therapeutics that target the replication process of influenza viruses, coronaviruses (including SARS-CoV-2), noroviruses and hepatitis C viruses. Cocrystal employs unique structure-based technologies and Nobel Prize-winning expertise to create first- and best-in-class antiviral drugs. For further information about Cocrystal, please visit www.cocrystalpharma.com.

Cautionary Note Regarding Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including statements regarding Cocrystal’s plans to initiate a human challenge study in 2025 and the expansion of the current ongoing clinical trial with a higher dosage during the current quarter. The words “believe,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “could,” “target,” “potential,” “is likely,” “will,” “expect” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events. Some or all of the events anticipated by these forward-looking statements may not occur. Important factors that could cause actual results to differ from those in the forward-looking statements include, but are not limited to, risks relating to our ability to obtain regulatory authority for and proceed with clinical trials including the recruiting of volunteers for such studies by our clinical research organizations and vendors, the results of such studies, our collaboration partners’ technology and software performing as expected, general risks arising from clinical studies, receipt of regulatory approvals, regulatory changes, and potential development of effective treatments and/or vaccines by competitors, including as part of the programs financed by the U.S. government, and potential mutations in a virus we are targeting that may result in variants that are resistant to a product candidate we develop. Further information on our risk factors is contained in our filings with the SEC, including our Annual Report on Form 10-K for the year ended December 31, 2023. Any forward-looking statement made by us herein speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Investor Contact:
Alliance Advisors IR
Jody Cain
310-691-7100
jcain@allianceadvisors.com

# # #

Source: Cocrystal Pharma, Inc.

Released January 8, 2025

Research News and Market Data on COCP

December 31, 2024

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• Data support favorable safety and tolerability profile with no serious adverse events (SAEs) or study-related drug discontinuations
• Enrollment to be extended due to low influenza infection among challenged participants; virology results are uninterpretable

BOTHELL, Wash., Dec. 31, 2024 (GLOBE NEWSWIRE) — Cocrystal Pharma, Inc. (Nasdaq: COCP) (“Cocrystal” or the “Company”) announces plans to extend enrollment in the Phase 2a human challenge study with its investigational, broad-spectrum, oral influenza PB2 inhibitor CDI-42344 due to unexpectedly low influenza infection among study participants who were challenged with a H3N2 viral strain. This randomized, double-blind, placebo-controlled Phase 2a study is evaluating the safety, tolerability, pharmacokinetics (PK), antiviral activity and clinical measurements of CC-42344 at a single site in the United Kingdom.

CC-42344 is a drug candidate in development as an oral treatment for pandemic avian and seasonal influenza A infections. In December 2023, Cocrystal Pharma announced enrollment of the first patient in this study and in May 2024, the Company announced full enrollment of 78 subjects.

“While CC-42344 showed a favorable safety and tolerability profile, we’re disappointed by the low infectivity rate of the challenge influenza strain used in this study. The establishment of robust influenza infection in healthy, uninfected study subjects is critical to determine clinical endpoints for evaluating antiviral molecules. The low infectivity obtained in this study hindered antiviral data analysis,” said Sam Lee, Ph.D., Cocrystal’s President and co-CEO.

“We remain optimistic about CC-42344 due to its unique mechanism of action with a high barrier to developing resistance, which could render it a best-in-class antiviral treatment for pandemic and seasonal influenza infections. We are also encouraged by CC-42344’s favorable safety and tolerability profile from the Phase 2a study to date, with no SAEs and no drug-related discontinuations by study participants.

“We are working with the clinical research organization to prepare a protocol amendment for approval by the United Kingdom Medicines and Healthcare Products Regulatory Agency (MHRA) in order to extend enrollment in this study, and to ensure necessary infection rates among enrolled study subjects,” he added.

About CC-42344

CC-42344 is a new class of antiviral treatment designed to effectively block an essential step in the viral replication and transcription of pandemic and seasonal influenza A and was discovered using the Company’s proprietary structure-based drug discovery platform technology. CC-42344 showed excellent in vitro antiviral activity against pandemic and seasonal influenza A strains, as well as strains that are resistant to Tamiflu^® and Xofluza^®. In late 2022, Cocrystal reported favorable safety and tolerability results from a Phase 1 study in healthy subjects conducted in Australia. The Company initiated the Phase 2a human challenge study in December 2024 following authorization from the MHRA. In June 2024, the Company reported in vitro studies demonstrating that CC-42344 inhibited the activity of the PB2 protein in the new highly pathogenic avian influenza A (H5N1) PB2 protein recently identified in humans.

About Influenza A

Influenza is a major global health threat that may become more challenging to treat due to the emergence of highly pathogenic avian influenza viruses and resistance to approved influenza antivirals. Each year there are approximately 1 billion cases of seasonal influenza worldwide, 3-5 million severe illnesses and up to 650,000 deaths. On average, about 8% of the U.S. population contracts influenza each season. In addition to the health risk, influenza is responsible for an estimated $11.2 billion in direct and indirect costs in the U.S. annually.

Structure-Based Platform Technology

Cocrystal’s proprietary structural biology, along with its expertise in enzymology and medicinal chemistry, enable its development of novel antiviral agents. The Company’s platform provides a three-dimensional structure of inhibitor complexes at near-atomic resolution, providing immediate insight to guide Structure Activity Relationships. This helps to identify novel binding sites and allows for a rapid turnaround of structural information through highly automated X-ray data processing and refinement. The goal of this technology is to facilitate the development of best-in-class antiviral therapies that have fast onset of action and/or shortened treatment time, are safe, well tolerated and easy to administer, are effective against all viral subtypes that cause disease and have a high barrier to viral resistance.

About Cocrystal Pharma, Inc.

Cocrystal Pharma, Inc. is a clinical-stage biotechnology company discovering and developing novel antiviral therapeutics that target the replication process of influenza viruses, coronaviruses (including SARS-CoV-2), noroviruses and hepatitis C viruses. Cocrystal employs unique structure-based technologies and Nobel Prize-winning expertise to create first- and best-in-class antiviral drugs. For further information about Cocrystal, please visit www.cocrystalpharma.com.

Cautionary Note Regarding Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including statements regarding the extension of enrollments, regulatory approval and achieving the necessary infection rate. The words “believe,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “could,” “target,” “potential,” “is likely,” “will,” “expect” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events. Some or all of the events anticipated by these forward-looking statements may not occur. Important factors that could cause actual results to differ from those in the forward-looking statements include, but are not limited to, risks relating to our ability to obtain regulatory authority for and proceed with clinical trials including the recruiting of volunteers for such studies by our clinical research organizations and vendors, the results of such studies, our collaboration partners’ technology and software performing as expected, general risks arising from clinical studies, receipt of regulatory approvals, regulatory changes, and potential development of effective treatments and/or vaccines by competitors, including as part of the programs financed by the U.S. government, and potential mutations in a virus we are targeting that may result in variants that are resistant to a product candidate we develop. Further information on our risk factors is contained in our filings with the SEC, including our Annual Report on Form 10-K for the year ended December 31, 2023. Any forward-looking statement made by us herein speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Investor Contact:
Alliance Advisors IR
Jody Cain
310-691-7100
jcain@allianceadvisors.com

Media Contact:
JQA Partners
Jules Abraham
917-885-7378
Jabraham@jqapartners.com