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peginterferon alfa-2b

Phase 3

Chronic Hepatitis C | Monoclonal antibody | Infectious Disease |Merck & Company, Inc.|Last Updated: Apr 4, 2017

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
RandomizedNO_TREATMENT_CONTROLLEDDMCBiomarker
Total Trials2
Total Enrollment1,171
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT00049842Prevention of Disease Progress in Chronic Hepatitis C Patients With Liver Fibrosis (Study P02570AM2)(COMPLETED)PHASE3 COMPLETED 540Oct 1, 2002Oct 1, 2009Apr 4, 2017 -
NCT00048724Peg-Intron for Prevention of Disease Progress in Chronic Hepatitis C Patients With Cirrhosis (Study P02569)PHASE3 COMPLETED 631Jun 1, 2002Apr 1, 2008Apr 4, 2017 -
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Study Endpoints
Primary Endpoints
Fibrosis Response Status (ie, Improvement, no Change, or the Worsening of the Fibrosis Score in Participants With Baseline METAVIR Fibrosis Score of F2 or F3).
Baseline to up to Month-36

Definitions: Fibrosis scoring: F0 (no fibrosis), F1 (stellate enlargement of portal tract without septa formation, F2 (enlargement of portal tract with rare septa formation, F3 (numerous septa without cirrhosis), F4 (cirrhosis). Improved: Participants whose METAVIR fibrosis score at up to Month-36 decreases by 1 or more units compared to baseline. No Change: Participants whose METAVIR fibrosis score at up to Month-36 is the same as the baseline score. Worsened: Participants whose METAVIR fibrosis score at up to Month-36 increases by 1 or more units compared to baseline.

Time to Observation of the First Clinical Event Experienced by a Subject
Up to 60 months of treatment or observation, or when 98 subjects experience at least one clinical event

Clinical events are liver decompensation \[variceal bleeding, development of Child-Pugh Class C, hepatic encephalopathy ≥Grade 2, ascites\], hepatic carcinoma, death, and/or liver transplantation

Secondary Endpoints
Inflammation Response Status (ie, Improvement, no Change, or the Worsening of the METAVIR Activity Score as Compared to Baseline)
Baseline to up to Month-36
Mean Change From Baseline to up to Month-36 in the METAVIR Fibrosis Score (Using a Continuous Scale)
Baseline to up to Month-36
The Number of Participants Whose METAVIR Fibrosis Score Did Not Worsen (ie, the Response Status of Improved/no Change) During Treatment Compared to Baseline
Baseline to up to Month-36
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
PEG-Intron (peginterferon alfa-2b) 0.5 µg/kg Weekly (QW)EXPERIMENTALPEG-Intron 0.5 µg/kg Weekly (QW) subcutaneously (SC) as maintenance therapy for 36 months with 4-week follow-up
Untreated ControlNO_INTERVENTION -
PegIntronEXPERIMENTALPegIntron (peginterferon alfa-2b) 0.5 µg/kg subcutaneously once weekly as maintenance therapy for 60 months with a 4-week post-treatment follow-up
Interventions
NameTypeDescription
peginterferon alfa-2b (SCH 54031)BIOLOGICAL0.5 µg/kg Weekly QW SC for 36 months
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Eligibility Criteria
Age Range18 Years — 65 Years
SexALL
Healthy VolunteersNo

Inclusion Criteria: * Age at entry in study P02370 (NCT00039871) 18-65 years; * Nonresponder to PEG-Intron plus Rebetol in study P02370 Exclusion Criteria: * Participants who did not participate in the P02370 study. * Any medical condition, including but not limited to decompensated liver disease...

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