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Phase 2 N=128 Randomized Double-blind Prevention

A Safety Study of Two Dapivirine (TMC120) Vaginal Gels in the United States

HIV-1 Infections

Enrolled (actual)
128
Serious AEs
2.3%
Results posted
Oct 2022
Primary outcome: Primary: The Percentage of Women With the Composite Endpoint of Abnormal Safety Findings. — 23; 28; 28 Participants

Study Design & Population

Study type
Interventional
Phase
Phase 2
Interventions
dapivirine 4789 (Drug); dapivirine gel 4759 (Drug); Drug placebo (Drug)
Age
Adult · 18+ yrs
Sex
Female
Sponsor
International Partnership for Microbicides, Inc.
Primary completion
Jan 2011

Outcome Measures

OutcomeResultp-value
PRIMARY
The Percentage of Women With the Composite Endpoint of Abnormal Safety Findings.
23; 28; 28
SECONDARY
Changes in the Vaginal Flora
66.7; 60.5; 54.8; 14.3; 11.6; 23.8
SECONDARY
The Distribution of Dapivirine Levels Observed in Plasma Samples at Each Specified Time Point
536.8; 475.8; 599.5; 446.1; 572.6; 432.6
SECONDARY
The Adherence to Once Daily Application of a Vaginal Microbicide Gel Over a 12-week Period in Healthy, Sexually Active, HIV-negative Women
74; 73; 71
SECONDARY
Changes in the Vaginal pH
4.46; 4.55; 4.55; 4.45; 4.48; 4.3
SECONDARY
The Distribution of Dapivirine Levels Observed in Vaginal Fluid at Each Specified Time Point.
467.1; 880.7; 347.8; 462.6; 526.9; 298.1
SECONDARY
The Distribution of Dapivirine Levels Observed in Vaginal Tissue at Each Specified Time Point.
3518; 9343; 841.0; 1150; 4781; 1142
SECONDARY
Acceptability of Once Daily Application of a Vaginal Microbicide Gel Over a 12-week Period in Healthy, Sexually Active, HIV-negative Women
24; 25; 29

Summary

A double-blind, randomized, placebo-controlled Phase I/II trial to evaluate the safety of dapivirine Gel 4759, 0.05% 2.5 g and dapivirine Gel 4789, 0.05% 2.5 g formulations as compared to the vaginal HEC-based Universal placebo gel, 2.5 g in healthy HIV-negative women

Eligibility Criteria

Inclusion Criteria

  • Women 18 to 40 years of age inclusive who can give written informed consent
  • Available for all visits and consent to follow all procedures scheduled for the trial
  • Healthy and self-reported sexually active
  • HIV-negative as determined by an HIV test at time of enrollment
  • Willing to be on a stable form of contraception
  • In the absence of the use of exogenous hormone(s), have a self-reported regular menstrual cycle
  • Upon pelvic/speculum examination and colposcopy at the enrollment visit, the cervix and vagina appear normal as determined by qualified research center staff
  • Asymptomatic for genital infections at the time of enrollment
  • Willing to refrain from use of vaginal products or objects for 14 days prior to enrollment and for the duration of the trial.
  • Documentation of no abnormality on Pap smear within 90 days prior to randomization;
  • Willing to answer acceptability and adherence questionnaires throughout the trial
  • Willing to refrain from participation in any other research trial for the duration of this trial
  • Willing to provide adequate locator information for trial retention purposes and be reachable per local standard procedures
  • Willing to abstain from all the following criteria beginning 48 hours prior to each trial visit:
  • Vaginal intercourse
  • Oral contact with her genitalia
  • Internal vaginal washing
  • Penetration of the vagina by fingers, sex toys, or any other objects, including medications
  • Willing to abstain from all of the following for 3 days after biopsy procedures:
  • Vaginal intercourse
  • Oral contact with her genitalia
  • Internal vaginal washing
  • Penetration of the vagina by fingers, sex toys, or any other objects, including medications

Exclusion Criteria

  • Currently pregnant or having had their last pregnancy outcome within 3 months prior to screening
  • Currently breast-feeding, or having breastfed within 3 months prior to screening
  • Receipt of any investigational agent within 60 days prior to screening
  • Previously participated in any HIV vaccine trial
  • Untreated urogenital infections within 2 weeks prior to enrollment
  • Presence of any abnormal physical finding on the vulva, vaginal walls or cervix during pelvic/speculum examination and/or colposcopy
  • History of significant urogenital or uterine prolapse, undiagnosed vaginal bleeding, or urethral obstruction
  • Pap smear result at screening that requires cryotherapy, biopsy or treatment (other than for infection)
  • History of symptomatic or asymptomatic HSV-2
  • Any Grade 2, 3 or 4 hematology, chemistry or urinalysis laboratory abnormality at baseline
  • Unexplained, undiagnosed abnormal bleeding per vagina during or following vaginal intercourse; or urogenital surgery within 90 days prior to enrollment
  • Any history of anaphylaxis or severe allergy resulting in angioedema; or a history of sensitivity/allergy to latex
  • Any serious acute, chronic or progressive disease
  • Any condition(s) that, in the opinion of the Investigator, might interfere with adherence to trial requirements or evaluation of the trial objectives
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT00799058). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.

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