Table 2: Randomised clinical trial evidence for preventing sexual transmission of HIV (adapted from [93]).

Randomised Clinical Trials Effect size (95%CI) Reference
 Vaginal Microbicide
CAPRISA 004 - peri-coital tenofovir gel
(Women in South Africa)
39% (6; 60) [81]
MTN003/VOICE - daily tenofovir gel
(Women in South Africa, Uganda, Zimbabwe)
15% (-21; 40) [82]
FACTS 001- peri-coital tenofovir gel
(Women in South Africa)
0% (-40; 30) [83]
MTN-020-ASPIRE -monthly vaginal ring containing dapivirine
(Women in Malawi, South Africa, Uganda, and Zimbabwe)
27% (1; 46) [89]
IPM 027/Ring Study monthly vaginal ring containing dapivirine
(Women in South Africa and Uganda)
30.7% (0.90-51.5) [90]
 Oral Pre-exposure prophylaxis
IPERGAY - on demand emtricitabine and tenofovir*
(Men who have sex with men in France)
86% (39; 99) [88]
PROUD - daily emtricitabine and tenofovir
(Men who have sex with men in United Kingdom)
86% (62; 96) [87]
Partners PrEP - daily emtricitabine and tenofovir
(HIV serodiscordant couples in Kenya, Uganda)
75% (55; 87) [86]
Partners PrEP - daily tenofovir
(HIV serodiscordant couples in Kenya, Uganda)
67% (44; 81) [86]
TDF2 - daily emtricitabine and tenofovir
(Heterosexuals men and women in Botswana)
62% (22; 84) [85]
iPrEx - daily emtricitabine and tenofovir
(Men who have sex with men in America’s, Thailand, South Africa)
44% (15; 63) [94]
FEMPrEP - daily emtricitabine and tenofovir
(Women in Kenya, South Africa, Tanzania)
6% (-52; 41) [84]
MTN003/VOICE - daily emtricitabine and tenofovir
(Women in South Africa, Uganda, Zimbabwe)
4% (-49; 27) [82]
MTN003/VOICE - daily tenofovir
(Women in South Africa, Uganda, Zimbabwe)
-49% (-129; 3) [82]
 Other
HPTN 052- Antiretroviral therapy as prevention
 (HIV serodiscordant couples in Africa, Asia, America)
96% (73; 99) [8]
Medical Male circumcision
(Men in South Africa, Kenya, Uganda)
61% (34; 77)
60% (32; 77)
51% (16; 72)
[4-6]
STD treatment
(Men and women in Mwanza, Tanzania)
42% (21; 58) [95]

*emtricitabine and tenofovir - Truvada®