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pegylated interferon alpha-2b

Phase 3

Hepatitis B, Chronic | Small molecule | Infectious Disease |Merck & Company, Inc.|Last Updated: Apr 7, 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
RandomizedACTIVE_CONTROLLED
Total Trials1
Total Enrollment671
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT00536263PegIntron Treatment of Chronic Hepatitis B e Antigen-Positive Patients (P05170/MK-4031-327)PHASE3 COMPLETED 671Sep 1, 2007Nov 1, 2009Apr 7, 2017 -
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Study Endpoints
Primary Endpoints
Number of Participants With Hepatitis B Envelope Antigen (HBe or HBeAg) Loss
24 weeks after end of treatment (EOT)

HBeAg Loss was tested by Abbott Microparticle Enzyme Immunoassay (MEIA)

Secondary Endpoints
Number of Participants With HBeAg Loss
Up to Treatment Week 48
HBe Seroconversion
End of treatment (EOT) and 24 weeks after EOT
Number of Participants With Hepatitis B Virus - Deoxyriboncleic Acid (HBV-DNA) <20,000 IU/mL
End of treatment (EOT) and 24 weeks after EOT
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
PEG 1.0 mcg/kg weekly (QW) * 24 weeksACTIVE_COMPARATORPegIntron 1.0 mcg/kg weekly (QW) \* 24 weeks + 24 weeks follow-up
PEG 1.5 mcg/kg QW * 24 wksEXPERIMENTALPegIntron 1.5 mcg/kg QW \* 24 wks + 24 wks follow-up
PEG 1.5 mcg/kg QW * 48 wksEXPERIMENTALPegIntron 1.5 mcg/kg QW \* 48 wks + 24 wks follow-up
Interventions
NameTypeDescription
pegylated interferon alpha-2bDRUG1.0 mcg/kg subcutaneously (S.C.) QW for 24 weeks
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Eligibility Criteria
Age Range18 Years — 65 Years
SexALL
Healthy VolunteersNo

Inclusion Criteria: * Adults with chronic hepatitis B: * Serum hepatitis B surface antigen positive for at least 6 months * Serum hepatitis B e antigen positive * Serum negative for hepatitis B surface and e antibodies * Plasma hepatitis B virus deoxyribonucleic acid (DNA) level greater th...

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