Clinical Trial: Safety and Immunogenicity Study of Therapeutic HSV-2 Vaccine

Study Status: Completed
Recruit Status: Completed
Study Type: Interventional

Official Title: A Phase I/IIa, Randomized, Double-blind, Dose-ranging, Placebo-controlled Study of the Safety and Immunogenicity of a HSV-2 Vaccine Containing Matrix M-2 Adjuvant in Individuals With Documented

Brief Summary:

Randomized, double-blind, placebo-controlled, dose escalation study. There will be 3 cohorts of patients defined by the antigen dose (10, 30 or 100 µg of each antigen), and within each cohort, patients will be randomized at a ratio of 3:1:1 to one of the following:

  1. GEN-003/M2: GEN-003 plus Matrix M-2 adjuvant (50 µg per dose)
  2. GEN-003: Antigens alone
  3. Placebo (DPBS diluent)

Each Cohort is divided into 2 Groups. For each dose cohort, immunizations begin with a Pilot Group. Immunization of the remainder of the Group "Continuation Group") is contingent upon successful review of data from the Pilot Group through Day 7 after immunization. Dose escalation to the next dose level Cohort proceeds after evaluation of safety data from all patients in the prior Cohort and only after all specified safety criteria are met. The total numbers of patients in each Group and Cohort are as follows:

  • 10 µg Cohort: 10 Pilot Group, 40 Continuation Group (50 Total)
  • 30 µg Cohort: 10 Pilot Group, 40 Continuation Group (50 Total)
  • 100 µg Cohort: 10 Pilot Group, 40 Continuation Group (50 Total)
  • Totals per group: 30 Pilot Group, 120 Continuation Group (150 Total Patients)

Subjects will receive 3 doses of the assigned treatment (GEN-003/M-2, GEN-003, or placebo) at 3 week intervals. Sampling from mucocutaneous genital sites for viral shedding will be done twice daily for 28 days prior to the first immunization (baseline shedding), and again following the last immunization. Fo

Detailed Summary:
Sponsor: Genocea Biosciences, Inc.

Current Primary Outcome: Number of patients with adverse events as a measure of safety and tolerability [ Time Frame: 57 Weeks ]

Original Primary Outcome: Same as current

Current Secondary Outcome:

  • Immunogenicity measured by humoral (antibody) and T-cell responses to vaccine antigens [ Time Frame: 33 weeks ]
  • Change in proportion of days with detectable viral shedding [ Time Frame: 6 weeks ]


Original Secondary Outcome: Same as current

Information By: Genocea Biosciences, Inc.

Dates:
Date Received: August 14, 2012
Date Started: July 2012
Date Completion:
Last Updated: January 12, 2016
Last Verified: January 2016