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MRKAd5 HIV-1 gag vaccine

Phase 1

Hepatitis C | Monoclonal antibody | Infectious Disease |Merck & Company, Inc.|Last Updated: Aug 25, 2015

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindSHAM_CONTROLLEDDMC
Total Trials1
Total Enrollment17

FDA Designations

No designations recorded

Clinical trial landscape

MRKAd5 HIV-1 gag vaccine · 1 trial · 1 indication

Phase 1 1
NCT00857311MRKAd5 HIV-1 Gag Vaccine (V520) in Subjects With Chronic Hepatitis C (V520-022) (COMPLETED)Hepatitis C
COMPLETED17 Analytics
PHASE1COMPLETED
MRKAd5 HIV-1 Gag Vaccine (V520) in Subjects With Chronic Hepatitis C (V520-022) (COMPLETED)
Hepatitis CUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants With Vaccine-related Clinical (Systemic and Injection-site), and Laboratory Adverse Events (AE)
up to Week 78 (52 weeks after boost injection) for systemic AEs, 29 days after any dose for laboratory AEs, and 5 days after any dose for injection-site AEs

Serious and non serious clinical (systemic and injection-site AEs), and laboratory AEs were collected. Systemic and laboratory AEs reflect any unfavorable \& unintended change in the structure, function, or chemistry of the body. Injection-site AEs include any swelling, redness, pain or tenderness at the injection site. Vaccine-related AEs are those determined by the investigator to be possibly, probably, or definitely related to the administration of the vaccine.

Secondary Endpoints

Number of Participants With Systemic and Laboratory Adverse Events (AE)
up to Week 260 (234 weeks after boost injection) for systemic AEs, 29 days after any dose for laboratory AEs, and 5 days after any dose for injection-site AEs
Immune Response by Levels of Unfractionated Gag-specific IFN-gamma Following a 3-dose Vaccine Regimen
Week 30 (4 weeks after boost injection)
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
MRKAd5 HIV-1 gag vaccine 1x10^9 vp/doseEXPERIMENTALParticipants administered MRKAd5 HIV-1 gag vaccine 1x10\^9 viral particles (vp)/dose (V520), on Day 1, Week 4, and Week 26.
MRKAd5 HIV-1 gag vaccine 1x10^10 vp/doseEXPERIMENTALParticipants were to be administered MRKAd5 HIV-1 gag 1x10\^10 vp/dose (V520) on Day 1, Week 4, and Week 26. Per a letter dated 30-Aug-2005 all sites were notified that due to recruitment challenges enrollment would be halted as of 01-Oct-2005. Consequently, no participants were enrolled in the group MRKAd5 HIV-1 gag 1x10\^10 vp/dose.
PlaceboEXPERIMENTALParticipants administered placebo to MRKAd5 HIV-1 gag vaccine (V520) on Day 1, Week 4, and Week 26.
Open Label Tetanus and Diptheria Toxoids AdsorbedSHAM_COMPARATORParticipants were to be administered open label tetanus and diptheria toxoids adsorbed (Td) at Day 1 only. Per a letter dated 30-Aug-2005 all sites were notified that due to recruitment challenges enrollment would be halted as of 01-Oct-2005. Consequently, no participants were enrolled in this group.

Interventions

NameTypeDescription
MRKAd5 HIV-1 gag vaccine (V520)BIOLOGICAL3-dose prime boosting regimen of 1.0-mL intramuscular injections of 1x10\^9 viral particles/dose of MRKAd5 HIV-1 gag vaccine (V520) at Day 1 and Weeks 4 and 26
Comparator: PlaceboBIOLOGICAL1.0 mL intramuscular injection of Placebo at Day 1 and Weeks 4 and 26
Comparator: Open Label Tetanus and Diptheria Toxoids AdsorbedBIOLOGICAL0.5 mL Open Label Tetanus and Diptheria Toxoids Adsorbed (Td) intramuscular injection at Day 1 only
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Eligibility Criteria

Age Range18 Years to 55 Years
SexALL
Healthy VolunteersNo

Inclusion Criteria: * Subject who is of reproductive potential agrees to use a acceptable method of birth control through week 52 of the study Exclusion Criteria: * Subject weighs less than 110 lbs. * Subject has received treatment for hepatitis C virus infection in the 3 months before enrollment...

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Competitive Landscape -Hepatitis C 11 trials

Frequently asked questions about MRKAd5 HIV-1 gag vaccine

What is MRKAd5 HIV-1 gag vaccine used for?

MRKAd5 HIV-1 gag vaccine is an investigational vaccine being studied for use in Hepatitis C. It is a Phase 1 candidate developed by Merck & Company, Inc. (MRK). The vaccine was evaluated in a completed clinical trial involving 17 participants with chronic Hepatitis C.

What does MRKAd5 HIV-1 gag vaccine target?

MRKAd5 HIV-1 gag vaccine is designed to target the HIV-1 gag protein. It uses an adenovirus serotype 5 (Ad5) vector to deliver the gag antigen. The vaccine is being investigated for its potential immune effects in the context of Hepatitis C infection.

Who makes MRKAd5 HIV-1 gag vaccine?

MRKAd5 HIV-1 gag vaccine is developed by Merck & Company, Inc., a pharmaceutical company traded on the New York Stock Exchange under the ticker MRK. The vaccine is currently in Phase 1 clinical development.

What phase is MRKAd5 HIV-1 gag vaccine in?

MRKAd5 HIV-1 gag vaccine is in Phase 1 clinical development. It is an investigational vaccine, not yet approved by regulatory authorities. One Phase 1 trial has been completed, and no active trials are currently listed for this candidate.

What clinical trials is MRKAd5 HIV-1 gag vaccine in?

MRKAd5 HIV-1 gag vaccine was studied in clinical trial NCT00857311, titled 'MRKAd5 HIV-1 Gag Vaccine (V520) in Subjects With Chronic Hepatitis C (V520-022)'. This Phase 1 trial was completed and enrolled 17 participants with Hepatitis C. The trial was randomized, double-blind, and sham-controlled.