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Table 2 Current and Proposed Pre-Exposure Prophylaxis Trials, October 2007 Study (Sponsor) Study and Agent(s) (Dose) Population (Target N) Sites [52].

From: Prevention of the sexual transmission of HIV-1: preparing for success

Study (sponsor)

Study and Agent(s) (Dose)

Population (Target N)

Sites

US CDC-NCHSTP-4323

Phase II daily TDF or daily oral placebo

MSM ages 18 to 60 (400)

US (anticipated completion 2009)

US CDC-NCHSTP-4370

Phase II/III daily TDF or daily oral placebo

IDU ages 20 to 60 (2,000)

Thailand (anticipated completion 2008)

CDC-NCHSTP-4940; BOTUSA MB06

Phase III daily Truvada or daily oral placebo

Men and women ages 18 to 29 (1,200)

Botswana (anticipated completion 2010)

iPrEX (NIAID/BMGF)

Phase III daily Truvada or daily oral placebo

MSM ages 18 and up (3,000)

Peru, Ecuador, Brazil, Thailand, South Africa, US (anticipated completion 2011)

FHI (USAID)

) Phase III daily Truvada or daily oral placebo

High-risk women ages 18 to 35 (3,900)

Kenya, Malawi, South Africa, Tanzania, Zimbabwe (study planned, no anticipated completion date yet)

Partners Study (BMGF)

Phase III daily TDF, daily Truvada, or daily oral Placebo

Discordant heterosexual couples ages 18 to 60 (4,000)

Uganda, Kenya (study planned, no anticipated completion date yet)

VOICE/MTN 003 (NIAID)

Phase IIB safety and effectiveness of daily tenofovir gel (1%) or placebo gel, or daily TDF (300 mg), Truvada, or oral placebo

Nonpregnant premenopausal women ages 18 to 35 (2,400 oral, 1,600 gel)

South Africa, Zambia, Malawi, Uganda, Zimbabwe (study planned, no anticipated completion date yet)