This trial is active, not recruiting.

Condition herpes simplex type ii
Treatments herpv and qs-21, placebo
Phase phase 2
Sponsor Agenus, Inc.
Start date October 2012
End date September 2013
Trial size 75 participants
Trial identifier NCT01687595, C-400-02


The purpose of this study is to evaluate the effect the HerpV vaccine has on recurring episodes of genital herpes by evaluating viral shedding before, after treatment.

United States No locations recruiting
Other countries No locations recruiting

Study Design

Allocation randomized
Endpoint classification safety/efficacy study
Intervention model parallel assignment
Masking double blind (subject, caregiver, investigator, outcomes assessor)
Primary purpose treatment
HerpV and QS-21
herpv and qs-21 AG-707
HerpV (formerly AG-707 rh-Hsc70 Polyvalent Peptide Complex) in combination with adjuvant QS-21.
(Placebo Comparator)
phosphate buffered saline.

Primary Outcomes

To evaluate the effect of HerpV administration on HSV-2 mucocutaneous shedding as measured by the shedding rate after the treatment period as compared to the baseline swabbing period.
time frame: Up to 48 weeks

Eligibility Criteria

Male or female participants from 18 years up to 50 years old.

Inclusion Criteria: - Seropositive for HSV-2 - Clinically active genital herpes defined as a history of 1-9 episodes per year for at least one year prior to screening or one year prior to beginning suppressive therapy. - Willing to either use an effective method of contraception or abstain from sexual intercourse throughout the 48 week study period. - If female of childbearing potential, have a negative serum pregnancy test. - Agree to not receive any other investigational drugs while enrolled in this study. - The above criteria must be met before subjects are allowed to enter the 45 day swabbing period to be screen for the study. - Completion of greater than or equal to 80% (36 days) of the 45 day consecutive daily genital swabs. Exclusion Criteria: - Severe active infection, compromised cardiopulmonary function, or other serious medical illness that, in the opinion of the Principal Investigator, would prevent study completion. - A history of HSV infection of the eye (herpes simplex interstitial keratitis or uveitis), or herpes-associated erythema multiforme. - A history of immune suppression or autoimmune disorder. - Continued use of suppressive anti-viral therapy for HSV-2; a one week washout of any anti-viral therapy (suppressive and episodic) is required prior to initiating the swabbing period. - Concomitant use of systemic corticosteroids or immune-suppressive medications. The use of nasal steroids is acceptable. - HIV positive. - Presence of active Hepatitis B or C infection. - Known hypersensitivity or allergies to acyclovir or valacyclovir. - Pregnant or breast-feeding women.

Additional Information

Official title A Phase 2a Multicenter, Double-blinded, Randomized Trial to Evaluate The Effect of HerpV on Viral Shedding in Adults With Recurrent Genital Herpes
Description This study will evaluate the biological effectiveness and safety of the HerpV vaccine in combination with adjuvant QS-21. The Safety and tolerability of HerpV plus QS-21 will also be evaluated by collecting number and severity of adverse events throughout the study. Biological effectiveness will be evaluated by comparing the viral shedding rate during the treatment period as compared to the baseline period of the study. Subjects will undergo a baseline/ screening period. This is a 45 day period when the subject collects a swab of the genital area each day. . In case of a recurrence, subjects will be required to collect two swabs a day. If the subject collects at least 80% of the swabbing samples and meets all eligibility criteria they may enroll in the study. Subjects who meet all inclusion and no exclusion criteria will be enrolled and randomized in Study Period 1 (treatment period). In order to assure the trial enrolls a good representation of women and men, a prespecified cap on women will be set at 50 (approximately 67% of the total enrolled population.) Study Period 1 consists of three treatments and a 45 day swabbing period after the last treatment. The subject will collect swabs of the genital region each day for 45 days. Subjects who successfully complete Study Period 1 will proceed to Study Period 2. They will receive a booster injection of study drug or placebo according to their orginal randomization assignment. The subjects will again enter a 45 day swabbing period, collecting swabs of the genital area each day for 45 days. To evaluate immunologic response subjects will be required to have blood drawn at various time points through out the study. Subjects will be required to suspend suppressive antiviral therapy for the duration of the study (up to week 48). For one week before and during each 45 day swabbing period subjects will also be required to suspend episodic antiviral therapy.
Trial information was received from ClinicalTrials.gov and was last updated in May 2014.
Information provided to ClinicalTrials.gov by Agenus, Inc..