Study of Tenofovir Disoproxil Fumarate (TDF) for Prevention of HIV

This study has been completed.
Sponsor:
Information provided by:
FHI 360
ClinicalTrials.gov Identifier:
NCT00122486
First received: July 20, 2005
Last updated: July 28, 2006
Last verified: July 2006

July 20, 2005
July 28, 2006
July 2004
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  • Effectiveness endpoint is conversion for antibodies to HIV 1 or 2 as determined by an OMT test and confirmed by an ELISA from a finger prick or blood specimen. Discordant results between the OMT and the ELISA will be tested with WB.
  • Laboratory safety endpoints will include serum creatinine and phosphorus for kidney function, and AST and ALT for hepatic function. Reported adverse events will also be used for clinical evaluation of safety.
  • Effectiveness endpoint is conversion for antibodies to HIV 1 or 2 as determined by an OMT test and confirmed by an ELISA from a finger prick or blood specimen. Discordant results between the OMT and the ELISA will tested with WB.
  • Laboratory safety endpoints will include serum creatinine and phosphorus for kidney function, and AST and ALT for hepatic function. Reported adverse events will also be used for clinical evaluation of safety
Complete list of historical versions of study NCT00122486 on ClinicalTrials.gov Archive Site
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Study of Tenofovir Disoproxil Fumarate (TDF) for Prevention of HIV
Phase 2 Study of Tenofovir Disoproxil Fumarate (TDF) for Prevention of HIV

This Phase 2 study involving tenofovir disoproxil fumarate (TDF) will assess the extended safety of TDF 300 mg per day among young women who are not HIV-infected.

The protocol describes a randomized, fully-masked, parallel, placebo-controlled study of TDF for pre-exposure prophylaxis of HIV in high-risk women. TDF was selected for investigation as prophylaxis against HIV in high-risk women because of its unique pharmacological profile. In addition to the convenience of being a once daily single tablet, TDF’s safety profile is comparable to placebo among HIV infected persons, it has striking anti-HIV potency, and it has low potential for selection of resistant viruses. TDF is cleared from the body by the kidneys and is not metabolized by the liver. Therefore, TDF has limited potential to have pharmacokinetic interactions with other hepatically metabolized drugs. Each of these properties is necessary given the realities of the intended target populations. Moreover, initial prevention studies in simian models have provided encouraging results. Finally, the drug’s sponsor is supportive of investigating the potential use of TDF as a preventive, as well as a therapeutic agent.

Participants’ HIV status is monitored monthly. Participants are also monitored for safety using periodic physical examinations, serial laboratory tests and adverse event queries. Lab tests for kidney and liver function were to be conducted at screening, months 1, 3 and every 3 months thereafter or at the final visit if early withdrawal. To minimize the risk of contracting HIV infection, participants are counseled monthly to use male condoms for each act of intercourse. Participants converting for antibodies to HIV are counseled and referred to medical services as appropriate for each country.

Interventional
Phase 2
Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double-Blind
Primary Purpose: Prevention
HIV Infections
Drug: Tenofovir Disoproxil Fumarate
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*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
1200
March 2006
Not Provided

Inclusion Criteria:

  • HIV seronegative
  • Willing and able to give informed consent
  • 18 years to 35 years old, inclusive
  • Sexually active (on average, coitus 3 times per week)
  • Have had more than three sexual partners in the last month
  • Willing to use study product as directed
  • Willing to adhere to follow-up schedule
  • Willing to participate in the study for up to 12 months
  • Not pregnant, breast feeding, or desiring a pregnancy during the 12 months of participation
  • Have adequate renal function (serum creatinine < 1.5 mg/dL)
  • Have adequate liver function (hepatic transaminases [ALT and AST] < 43 U/L)
  • Have adequate serum phosphorus (greater than or equal to 2.2 mg/dL)
  • In general good health (no active, serious infections that require parenteral antibiotics; no active clinically significant medical conditions, including heart disease, diabetes, asthma, alcoholism, and cancer)
Female
18 Years to 35 Years
Yes
Contact information is only displayed when the study is recruiting subjects
Cameroon,   Ghana,   Nigeria
 
NCT00122486
9780
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FHI 360
Not Provided
Study Director: Leigh Peterson, PhD FHI 360
FHI 360
July 2006

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP