Drugs / CC-42344
last change May 2025 re-read 3 minutes ago

CC-42344

Developed for
influenza
Investigated by
Cocrystal Pharma, Inc. · Cocrystal Pharma Australia Pty Ltd. · Linear Clinical Research · hVIVO Services Limited

Trials 2

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 11 trial
Phase 1 NCT05202379 Feb 2022 → Mar 2023 influenza Cocrystal Pharma, Inc. Completed No outcome recorded
Phase 21 trial
Phase 2 NCT06160531 Nov 2023 → May 2024 influenza Cocrystal Pharma, Inc. Completed No outcome recorded

News releases announcing trial results or a regulatory action · 19

DateIssuerRelease
2025-05-29 Cocrystal Pharma, Inc. Results Cocrystal Pharma’s Investigational Drug Candidate CC-42344 Demonstrates Strong Antiviral Potency Against the 2024 Highly Pathogenic H5N1 Avian Influenza Strain cocrystalpharma.com ↗
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).
2024-12-31 Cocrystal Pharma, Inc. Results Cocrystal Pharma to Extend Phase 2a Influenza Challenge Study with Oral PB2 inhibitor CC-42344 cocrystalpharma.com ↗
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.
2024-06-20 Cocrystal Pharma, Inc. Results New Broad-Spectrum Antiviral Currently in a Phase 2a Clinical Trial in Influenza A may be Effective Against the H5N1 Avian Influenza Strain Identified in Humans Exposed to Infected Dairy Cows cocrystalpharma.com ↗
Cocrystal Pharma, Inc .’s (Nasdaq: COCP) novel, broad-spectrum antiviral CC-42344 inhibits activity in the highly pathogenic avian influenza A (H5N1) PB2 protein recently identified in infected dairy cattle, according to recently completed in vitro studies.
2024-03-19 Cocrystal Pharma, Inc. Regulatory Cocrystal Pharma Receives Pre-IND Responses from the FDA on Oral CC-42344 for Treating Influenza A cocrystalpharma.com ↗
Cocrystal Pharma, Inc. (Nasdaq: COCP) (“Cocrystal” or the “Company”) announces it has received Pre-Investigational New Drug (Pre-IND) feedback from the U.S. Food and Drug Administration (FDA) regarding CC-42344 as a potential oral treatment for pandemic and seasonal influenza A.
2024-01-04 Cocrystal Pharma, Inc. Results Cocrystal Pharma Provides an Update on the Clinical Development of its Novel, Broad-Spectrum Antiviral Investigational Candidates cocrystalpharma.com ↗
2023-11-29 Cocrystal Pharma, Inc. Results Cocrystal Pharma Highlights its Novel Inhaled and Oral Influenza A Antiviral CC-42344 at the World Vaccine Congress West Coast cocrystalpharma.com ↗
Cocrystal Pharma, Inc. (Nasdaq: COCP) (“Cocrystal” or the “Company”), announces the presentation of favorable data demonstrating activity of its potent broad-spectrum PB2 inhibitor CC-42344 against pandemic and seasonal influenza A strains at the World Vaccine Congress West Coast .
2023-10-31 Cocrystal Pharma, Inc. Regulatory Cocrystal Pharma Receives UK MHRA Authorization to Initiate Its Phase 2a Influenza Human Challenge Trial with Oral PB2 Inhibitor CC-42344 cocrystalpharma.com ↗
Cocrystal Pharma, Inc. (Nasdaq: COCP) (Cocrystal or the Company) announces receipt of authorization from the United Kingdom Medicines and Healthcare Products Regulatory Agency (MHRA) to initiate a Phase 2a human challenge trial with its broad-spectrum, oral PB2 inhibitor CC-42344 as a potential treatment for pandemic and seasonal influenza A.
2023-05-04 Cocrystal Pharma, Inc. Results Cocrystal Pharma Presents New Data from its CC-42344 Phase 1 Influenza A Study at the 7th Annual ISIRV Antiviral Group Conference cocrystalpharma.com ↗
Cocrystal Pharma, Inc. (Nasdaq: COCP) (Cocrystal or the Company) announces that new data from its CC-42344 Phase 1 influenza A Study was presented today by Sam Lee, Ph.D., President and co-CEO, at the 7 th Annual International Society for Influenza and Other Respiratory Virus Diseases’ (ISIRV) Antiviral Group Conference .
2022-12-19 Cocrystal Pharma, Inc. Results Cocrystal Pharma Reports Highly Favorable Safety and Tolerability Results from a Phase 1 Study with its Oral Antiviral CC-42344 for the Treatment of Pandemic and Seasonal Influenza A cocrystalpharma.com ↗
Cocrystal Pharma, Inc. (Nasdaq: COCP) announces highly favorable safety and tolerability results for its orally administered replication inhibitor CC- 42344 in its Phase 1 study.
2022-12-01 Cocrystal Pharma, Inc. Results Cocrystal Pharma Highlights Progress with CC-42344 as a Potential Oral Treatment for Pandemic and Seasonal Influenza A at the World Antiviral Congress 2022 cocrystalpharma.com ↗
Cocrystal Pharma, Inc. (Nasdaq: COCP) announces that progress with CC-42344 for the treatment of pandemic and seasonal influenza A from its Phase 1 study was presented today at the World Antiviral Congress 2022 underway in San Diego.
2022-11-17 Cocrystal Pharma, Inc. Results Cocrystal Pharma Announces Favorable Safety Data from the Phase 1 Study with Oral Antiviral CC-42344 for the Treatment of Pandemic and Seasonal Influenza A cocrystalpharma.com ↗
Cocrystal Pharma, Inc. (Nasdaq: COCP) today announced that CC-42344 demonstrated a favorable safety profile in both the single-ascending dose and the multiple-ascending dose portions of the ongoing Phase 1 study.
2022-11-01 Cocrystal Pharma, Inc. Regulatory Cocrystal Pharma Granted European Patent Covering Oral Antiviral Candidate CC-42344 in Combination with Another Antiviral Agent for the Treatment of Influenza cocrystalpharma.com ↗
Cocrystal Pharma, Inc. (Nasdaq: COCP) announces it has been granted European patent EP3866778 titled "Combinations Of Inhibitors of Influenza Virus Replication,” which covers the Company’s broad-spectrum oral PB2 inhibitor CC-42344 in combination with approved influenza antiviral drugs including Tamiflu ® , Xofluza ® or Favipiravir.

All press releases naming this drug 28 releases

DateIssuerRelease

Evidence & citations 3 cited values

Every value below carries the sentence it was read from. 2 sources stand behind the page.

FieldValueCited text
Known as CC-42344 ClinicalTrials.gov intervention name — accepted as the source's own label NCT05202379 ↗
1

NCT06160531 ↗

Action Inhibit “Influenza A Virus Replication Inhibitor” NCT05202379 ↗
Route Oral “single oral dose of the study drug or placebo” NCT05202379 ↗