BufferGel and PRO 2000/5: Vaginal Gels to Prevent HIV Infection in Women
NCT ID: NCT00074425
Last Updated: 2021-11-08
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
PHASE2
3101 participants
INTERVENTIONAL
2005-01-31
2008-09-30
Brief Summary
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Detailed Description
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BufferGel is a buffering agent designed to maintain normal vaginal acidity in the presence of ejaculate. Studies have shown that HIV is inactivated below a pH of 4 to 5.8. Carbopol 974, the major nonaqueous component of BufferGel, is commonly used as a gelling or tableting agent and has a well-documented safety record. BufferGel has proven safe and well tolerated in Phase I studies. PRO 2000/5 inhibits viral entry into susceptible cells. PRO 2000/5 has also been evaluated in Phase I studies and was found to be safe and well tolerated.
Participants in this study will be randomly assigned to receive one of four interventions: BufferGel, PRO 2000/5, placebo gel, or no gel. All participants will receive HIV risk reduction counseling, condoms, and diagnosis and treatment of sexually transmitted diseases. Participants in the three gel arms will be given single-use, prefilled applicators of gel and will be instructed to apply one dose of the product (BufferGel, PRO 2000/5, or placebo gel) intravaginally up to 60 minutes before each vaginal intercourse while in the study.
Participants will be enrolled for approximately 12 to 30 months, depending on when they enter the study. Participants will have two screening study visits and then monthly visits. Monthly study visits may take place at a clinic, the participant's home, or other community site. Monthly visits will include a medical interview; urine testing, including pregnancy testing; HIV and sexually transmitted infection risk reduction counseling; and distribution of study supplies (condoms and gel-filled applicators). Blood collection will occur at selected monthly visits. Four times a year, participants will be seen in the clinic for a more structured medical interview, pelvic exam, and HIV testing. At one of these visits, participants at particular sites who are willing will be asked to complete a behavioral risk assessment. At some visits vaginal fluid swabs will occur. Participants at non-US study sites will be asked for permission for these swabs to be stored for further testing. Assessment interviews will be both face to face and self-reporting.
Conditions
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Keywords
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Study Design
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RANDOMIZED
FACTORIAL
PREVENTION
QUADRUPLE
Study Groups
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1
BufferGel
BufferGel
Participants will be given single-use, prefilled applicators of gel and will be instructed to apply one dose of BufferGel intravaginally up to 60 minutes before each vaginal intercourse while in the study.
2
Pro 2000/5 Gel (P)
PRO 2000/5 Gel
Participants will be given single-use, prefilled applicators of gel and will be instructed to apply one dose of PRO 2000/5 Gel intravaginally up to 60 minutes before each vaginal intercourse while in the study.
3
Placeo Gel
Placebo gel
Participants will be given single-use, prefilled applicators of gel and will be instructed to apply one dose of PRO 2000/5 Gel intravaginally up to 60 minutes before each vaginal intercourse while in the study.
4
No interventions assigned to this group
Interventions
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BufferGel
Participants will be given single-use, prefilled applicators of gel and will be instructed to apply one dose of BufferGel intravaginally up to 60 minutes before each vaginal intercourse while in the study.
PRO 2000/5 Gel
Participants will be given single-use, prefilled applicators of gel and will be instructed to apply one dose of PRO 2000/5 Gel intravaginally up to 60 minutes before each vaginal intercourse while in the study.
Placebo gel
Participants will be given single-use, prefilled applicators of gel and will be instructed to apply one dose of PRO 2000/5 Gel intravaginally up to 60 minutes before each vaginal intercourse while in the study.
Eligibility Criteria
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Inclusion Criteria
* Have had sexual intercourse at least once in the 3 months prior to study entry
* Able to provide adequate contact information to study officials for purposes of follow-up
Exclusion Criteria
* Nonmedical injection drug use in the 12 months prior to study entry
* Vaginal intercourse more than an average of two times per day in the 2 weeks prior to study entry
* Plan to become pregnant in the 30 months after study entry
* Plan to travel away from the study site for more than 3 consecutive months in the 30 months after study entry
* Plan to relocate away from the study site in the 30 months after study entry
* Participation in another clinical trial of a vaginal product
* Pregnant within 42 days of study entry
* Have a sexually transmitted disease or other reproductive tract infection diagnosed by study staff
* Abnormal pelvic exam indicating deep epithelial disruption
* Condition that, in the opinion of the investigator, may interfere with the study
* Liver or kidney function abnormality of Grade 3 or higher
* Blood or blood clotting abnormality of Grade 4 or higher
18 Years
FEMALE
Yes
Sponsors
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Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
National Institute on Drug Abuse (NIDA)
NIH
National Institute of Mental Health (NIMH)
NIH
HIV Prevention Trials Network
NETWORK
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Responsible Party
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Principal Investigators
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Salim Abdool Karim, MBChB, PhD
Role: STUDY_CHAIR
University of KwaZulu-Natal, Centre for the AIDS Programme of Research in South Africa, Doris Duke Medical Research Institute, Nelson R. Mandela School of Medicine
Irving Hoffman, PA, MPH
Role: STUDY_CHAIR
School of Medicine, University of North Carolina
Lisa Maslankowski, MD
Role: STUDY_CHAIR
University of Pennsylvania
Groesbeck Parham, MD
Role: STUDY_CHAIR
Centre for Infectious Disease Research in Zambia
Nancy Padian, PhD
Role: STUDY_CHAIR
Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco; AIDS Research Institute
Gita Ramjee, PhD
Role: STUDY_CHAIR
Medical Research Council, HIV Prevention Research Unit
Taha Taha, MD
Role: STUDY_CHAIR
Johns Hopkins Bloomberg School of Public Health
Locations
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3535 Market Street CRS
Philadelphia, Pennsylvania, United States
University of North Carolina Lilongwe CRS
Lilongwe, Central Region, Malawi
College of Med. JHU CRS
Blantyre, Southern Region, Malawi
Chatsworth CRS
Chatsworth, KwaZulu-Natal, South Africa
Med. Research Council-Hlabisa
Durban, KwaZulu-Natal, South Africa
Kamwala Clinic CRS
Lusaka, , Zambia
Seke South CRS
Chitungwiza, , Zimbabwe
Spilhaus CRS
Harare, , Zimbabwe
Countries
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References
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Mayer KH, Peipert J, Fleming T, Fullem A, Moench T, Cu-Uvin S, Bentley M, Chesney M, Rosenberg Z. Safety and tolerability of BufferGel, a novel vaginal microbicide, in women in the United States. Clin Infect Dis. 2001 Feb 1;32(3):476-82. doi: 10.1086/318496. Epub 2001 Jan 26.
van De Wijgert J, Fullem A, Kelly C, Mehendale S, Rugpao S, Kumwenda N, Chirenje Z, Joshi S, Taha T, Padian N, Bollinger R, Nelson K. Phase 1 trial of the topical microbicide BufferGel: safety results from four international sites. J Acquir Immune Defic Syndr. 2001 Jan 1;26(1):21-7. doi: 10.1097/00126334-200101010-00003.
Clarke JG, Peipert JF, Hillier SL, Heber W, Boardman L, Moench TR, Mayer K. Microflora changes with the use of a vaginal microbicide. Sex Transm Dis. 2002 May;29(5):288-93. doi: 10.1097/00007435-200205000-00007.
Tabet SR, Callahan MM, Mauck CK, Gai F, Coletti AS, Profy AT, Moench TR, Soto-Torres LE, Poindexter III AN, Frezieres RG, Walsh TL, Kelly CW, Richardson BA, Van Damme L, Celum CL. Safety and acceptability of penile application of 2 candidate topical microbicides: BufferGel and PRO 2000 Gel: 3 randomized trials in healthy low-risk men and HIV-positive men. J Acquir Immune Defic Syndr. 2003 Aug 1;33(4):476-83. doi: 10.1097/00126334-200308010-00008.
Mayer KH, Karim SA, Kelly C, Maslankowski L, Rees H, Profy AT, Day J, Welch J, Rosenberg Z; HIV Prevention Trials Network (HPTN) 020 Protocol Team. Safety and tolerability of vaginal PRO 2000 gel in sexually active HIV-uninfected and abstinent HIV-infected women. AIDS. 2003 Feb 14;17(3):321-9. doi: 10.1097/00002030-200302140-00005.
D'Cruz OJ, Uckun FM. Clinical development of microbicides for the prevention of HIV infection. Curr Pharm Des. 2004;10(3):315-36. doi: 10.2174/1381612043386374.
MacQueen KM, Namey E, Chilongozi DA, Mtweve SP, Mlingo M, Morar N, Reid C, Ristow A, Sahay S; HPTN 035 Standard of Care Assessment Team. Community perspectives on care options for HIV prevention trial participants. AIDS Care. 2007 Apr;19(4):554-60. doi: 10.1080/09540120601035284.
Minces LR, McGowan I. Advances in the Development of Microbicides for the Prevention of HIV Infection. Curr Infect Dis Rep. 2010 Jan;12(1):56-62. doi: 10.1007/s11908-009-0076-5.
Abdool Karim SS, Richardson BA, Ramjee G, Hoffman IF, Chirenje ZM, Taha T, Kapina M, Maslankowski L, Coletti A, Profy A, Moench TR, Piwowar-Manning E, Masse B, Hillier SL, Soto-Torres L; HIV Prevention Trials Network (HPTN) 035 Study Team. Safety and effectiveness of BufferGel and 0.5% PRO2000 gel for the prevention of HIV infection in women. AIDS. 2011 Apr 24;25(7):957-66. doi: 10.1097/QAD.0b013e32834541d9.
Guffey MB, Richardson B, Husnik M, Makanani B, Chilongozi D, Yu E, Ramjee G, Mgodi N, Gomez K, Hillier SL, Karim SA; HIV Prevention Trials Network (HPTN) 035 Study Team. HPTN 035 phase II/IIb randomised safety and effectiveness study of the vaginal microbicides BufferGel and 0.5% PRO 2000 for the prevention of sexually transmitted infections in women. Sex Transm Infect. 2014 Aug;90(5):363-9. doi: 10.1136/sextrans-2014-051537. Epub 2014 Jun 4.
Richardson BA, Kelly C, Ramjee G, Fleming T, Makanani B, Roberts S, Musara P, Mkandawire N, Moench T, Coletti A, Soto-Torres L, Karim SA; HPTN 035 Study Team. Appropriateness of hydroxyethylcellulose gel as a placebo control in vaginal microbicide trials: a comparison of the two control arms of HPTN 035. J Acquir Immune Defic Syndr. 2013 May 1;63(1):120-5. doi: 10.1097/QAI.0b013e31828607c5.
Other Identifiers
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10065
Identifier Type: REGISTRY
Identifier Source: secondary_id
HPTN 035
Identifier Type: -
Identifier Source: org_study_id
NCT00197665
Identifier Type: -
Identifier Source: nct_alias