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Study of UC-781 Vaginal Microbicide

Phase I Study of the Safety and Acceptability of UC-781 Topical Vaginal Microbicide in Heterosexual Women and Their Male Partners

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00132444
Enrollment
90
Registered
2005-08-22
Start date
2005-10-31
Completion date
2008-12-31
Last updated
2010-01-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HIV Infections

Keywords

HIV, topical microbicides

Brief summary

This study will help determine whether the agent UC-781, formulated as a gel, is safe when applied to the vagina twice daily for 14 days. It will also assess whether women find the gel acceptable to use.

Detailed description

Purpose: To assess the safety and acceptability of vaginal use of 0.1% and 0.25% UC-781 gel in sexually active HIV-uninfected women, and their male partners, and sexually abstinent HIV-infected women Design: Single-center, phase I randomized, double-blind, controlled trial with 14 days of twice-daily product or control gel exposure Study population: Sexually active, HIV-uninfected women at low-risk for HIV and their male partners; sexually-abstinent HIV-infected women; all age 18-45 Size: 36 sexually active HIV-uninfected women and up to 36 of their male partners; 18 sexually abstinent HIV-infected women Treatment regimen: Stage 1: HIV-uninfected, sexually active women and 1 male partner per woman: 12 women assigned to 0.1% UC-781 twice daily x 14 days; 12 women assigned to 0.25% UC-781 twice daily x 14 days; 12 women assigned to control gel twice daily X 14 days. Stage 2: HIV-infected, abstinent women: 12 assigned to 0.25% UC-781 twice daily x 14 days; 6 assigned to control gel twice daily x 14 days Study duration: Participant accrual will take 6 months. Each participant will be followed for 14 days in Stage 1 and 21 days in Stage 2. Total study duration will be 9 months. Study Site: The Hope Clinic of Emory University, Decatur, GA Primary Objectives: * To assess the safety and toxicity of 0.1% UC-781 gel and 0.25% UC-781 gel administered intravaginally twice-daily for 14 days on the vulvar and cervicovaginal mucosa of sexually active HIV-uninfected women * To assess the safety and toxicity of 0.25% UC-781 gel administered intravaginally twice-daily for 14 days on the vulvar and cervicovaginal mucosa of sexually abstinent HIV-infected women Secondary Objectives: * To assess the acceptability of 0.1% and 0.25% UC-781 gel administered intravaginally twice-daily for 14 days among HIV-uninfected, and the acceptability of 0.25% gel similarly administered to HIV-infected women * To assess the effect of study product on vaginal microflora of HIV-uninfected and HIV-infected women * To assess the systemic absorption of 0.1% and 0.25% UC-781 gel when administered intravaginally * To assess HIV viral load in genital secretions in HIV-infected women during 0.25% UC-781 gel use * To assess the genotypic resistance patterns of HIV in genital secretions and peripheral blood in HIV-infected women during 0.25% UC-781 gel use * To assess the acceptability of 0.1% and 0.25% UC-781 gel in male sexual partners of HIV-uninfected women Primary Endpoints: The safety and toxicity of 0.1% UC-781 gel and 0.25% UC-781 gel administered intravaginally twice-daily for 14 days in sexually-active HIV-uninfected women and 0.25% UC-781 gel administered in sexually-abstinent HIV-infected women will be assessed by: * Macroscopic and/or microscopic evidence of vulvar and/or vaginal epithelium damage, including ulceration, abrasion, severe erythema, and/or severe edema * Macroscopic and/or microscopic evidence of cervical mucosal damage including ulceration, abrasion, severe erythema, and/or severe edema * Symptoms of genital irritation, including burning, itching or soreness * Laboratory evidence of grade 3 or higher toxicity for hematology, liver or renal function which cannot be attributed to another cause Secondary Endpoints: Acceptability of 0.1% and 0.25% UC-781 gel use by HIV-uninfected and 0.25% UC-781 gel use by HIV-infected women will be assessed by: * Proportion of participants who at Day 14 visit indicate they would be 'somewhat unlikely' or 'very unlikely' to use 0.1% and 0.25% UC-781 gel during sexual intercourse in the future compared to control gel users * Reported positive aspects of using 0.1% and 0.25% UC-781 gel compared to control gel users * Reported negative aspects of using 0.1% and 0.25% UC-781 gel compared to control gel users

Interventions

DRUGtopical vaginal application of UC-781 gel

UC-781 gel (arms 1 and 2) or placebo (arm 3) applied vaginally twice daily for 14 days

Sponsors

Emory University
CollaboratorOTHER
Centers for Disease Control and Prevention
CollaboratorFED
CONRAD
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 45 Years
Healthy volunteers
Yes

Inclusion criteria

For All Females: * Ages 18-45 years of age * Able to provide written informed consent * Normal Pap smear at screening or documentation of such within six months prior * Regular monthly menses or amenorrhea due to hormonal contraceptive use * Agree to pelvic exam, colposcopy and biopsy (if indicated) per protocol * Able/willing to complete Study Diary * Agree to abstain from sexual intercourse for 48 hours prior to the enrollment visit * Agree to apply assigned study gel as required per protocol * Agree to abstain from the following activities from at least 48 hours prior to enrollment through the Day 14 visit: * Insertion of fingers/objects into the vagina * Receiving oral sex * Receiving anal sex * Using a diaphragm, cervical cap, female condom, or vaginal contraceptive ring * Using vaginal products other than the study gels * Participating in other vaginal microbicide or contraceptive studies Additional Inclusion Criteria for Stage 1: * HIV-uninfected * In a monogamous sexually active relationship with one male partner throughout the study * Report having vaginal intercourse only with that partner at least two times per week * Agree to use study-provided male condoms for each act of vaginal intercourse while taking part in the study * Agree to inform male partner about participation Additional Inclusion Criteria for Stage 2: * HIV-infected * Sexually abstinent or agree to abstain from sexual intercourse while taking part in the study * Under regular medical care for HIV management * CD4+ lymphocyte count \> 200/mm3 for the last 6 months * HIV viral load \> 4.0 log10 copies/ml at screening * Documentation of prior HIV genotype with one or more mutations conferring resistance to a non-nucleoside reverse transcriptase inhibitor (NNRTI) * Not currently on antiretrovirals * Willing to provide study staff with access to medical records related to their HIV infection Inclusion Criteria for Male Partners: * Ages 18 years or older * Able to give written informed consent * Male sexual partners of HIV-uninfected women taking part in Stage 1 of the study

Design outcomes

Primary

MeasureTime frame
Symptoms of genital irritation, including burning, itching or sorenessWith 2 weeks of administration
Macroscopic and/or microscopic evidence of cervical, vulvar and/or vaginal epithelial damage, including ulceration, abrasion, severe erythema, and or severe edema.with two weeks of administration
Laboratory evidence of grade 3 or higher toxicity for hematology, liver or renal function which cannot be attributed to another causewith 2 weeks of administration

Secondary

MeasureTime frame
Acceptability of 0.1% and 0.25% UC-781 gel use by HIV-uninfected and HIV-infected womenqueried after 2 weeks of administation

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026