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CC-42344

Phase 2

Influenza A | Small molecule | Infectious Disease |Cocrystal Pharma, Inc.|Last Updated: Feb 19, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindCONTROLLEDDMC
Total Trials2
Total Enrollment158
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT06160531Influenza Viral Challenge Study of CC-42344 in Healthy ParticipantsPHASE2 COMPLETED 78Nov 25, 2023Jul 18, 2024Aug 5, 20251 United Kingdom
NCT05202379CC-42344 Safety Study in Healthy ParticipantsPHASE1 COMPLETED 80Feb 11, 2022Mar 29, 2023Feb 19, 20261 Australia
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Study Endpoints
Primary Endpoints
Area under the influenza viral load-time curve (VL-AUC) of influenza challenge virus
Day 1 to Day 8

Determined by quantitative real time reverse transcriptase polymerase chain reaction (qRT-PCR) on nasal samples

Part 1 SAD: Number of Participants With Treatment-Emergent Adverse Events (TEAE)
Up to 16 days

AE was defined as any new unfavorable or unintended sign, symptom, or disease or change of an existing condition, which occurs during or after treatment, whether or not considered treatment-related. A clinically significant laboratory value should be reported as an adverse event.

Part 1 SAD: Number of Participants With Clinically Significant Laboratory Abnormalities
Up to 16 days

Number of participants with clinically significant laboratory abnormalities was reported.

Part 1 SAD: Number of Participants With Clinically Significant Changes From Baseline in Vital Signs
Up to 16 days

Number of participants with clinically significant changes from baseline in vital signs was reported

Part 1 SAD: Number of Participants With Clinically Significant Changes From Baseline in Electrocardiograms (ECGs)
Up to 16 days

Number of participants with clinically significant changes from baseline in ECG was reported

Part 2 MAD: Number of Participants With Treatment-Emergent Adverse Events (TEAE)
Up to 21 days

AE was defined as any new unfavorable or unintended sign, symptom, or disease or change of an existing condition, which occurs during or after treatment, whether or not considered treatment-related. A clinically significant laboratory value should be reported as an adverse event.

Part 2 MAD: Number of Participants With Clinically Significant Laboratory Abnormalities
Up to 21 days

Number of participants with clinically significant laboratory abnormalities was reported

Part 2 MAD: Number of Participants With Clinically Significant Changes From Baseline in Vital Signs
Up to 21 days

Number of participants with clinically significant changes from baseline in vital signs was reported

Part 2 MAD: Number of Participants With Clinically Significant Changes From Baseline in Electrocardiograms (ECGs)
Up to 14 days

Number of participants with clinically significant changes from baseline in ECGs was reported.

Secondary Endpoints
Maximum viral load
Day 1 to Day 8
Time to first confirmed nonquantifiable viral assessment
Day 1 to Day 8
VL-AUC of influenza challenge virus
Day 1 to Day 8
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
CC-42344 Dose 1EXPERIMENTALLow dose group
CC-42344 Dose 2EXPERIMENTALHigh dose group
PlaceboPLACEBO_COMPARATOR -
SAD cohort 1AEXPERIMENTALfirst dose level with 6 active and 2 placebo healthy participants
SAD cohort 1BEXPERIMENTALsecond dose level with 6 active and 2 placebo healthy participants
SAD cohort 1CEXPERIMENTALthird dose level with 12 active and 2 placebo healthy participants; food-effect cohort
SAD cohort 1DEXPERIMENTALfourth dose level with 6 active and 2 placebo healthy participants
MAD cohort 2AEXPERIMENTALfirst dose level with 6 active and 2 placebo healthy participants dose x 14 days
MAD cohort 2BEXPERIMENTALsecond dose level with 6 active and 2 placebo healthy participants dose x 14 days
MAD cohort 2CEXPERIMENTALthird dose level with 6 active and 2 placebo healthy participants dose x 14 days
MAD cohort 2DEXPERIMENTALforth dose level with 6 active and 2 placebo healthy participants dose x 5 days
MAD cohort 2EEXPERIMENTALforth dose level with 6 active and 2 placebo healthy participants dose x 5 days
Interventions
NameTypeDescription
CC-42344DRUGAnti-influenza A agent
PlaceboDRUGMatching placebo
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Eligibility Criteria
Age Range18 Years — 55 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Healthy adults * Body weight ≥50 kg * Body mass index ≥18 kg/m2 and ≤35 kg/m2 * Serology results consistent with susceptibility to challenge virus infection Exclusion Criteria: * History of or current significant medical condition * Upper or lower respiratory tract infection...

Countries:United KingdomAustralia
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