HIV vaccine candidate fails to protect in large south african trial

NCT ID NCT02968849

First seen May 07, 2026 · Last updated May 07, 2026

Summary

This study tested whether an experimental HIV vaccine could prevent infection in over 5,400 sexually active adults in South Africa. Participants received either the vaccine or a placebo and were followed for up to 36 months. The vaccine was found to be safe but did not provide enough protection against HIV to continue.

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Contacts and locations

Locations

  • Aurum Institute Klerksdorp CRS

    Klerksdorp, North West, 2571, South Africa

  • Aurum Tembisa CRS

    Johannesburg, Gauteng, 1632, South Africa

  • Emavundleni CRS

    Cape Town, Western Cape, 7750, South Africa

  • Isipingo CRS

    Isipingo, KwaZulu-Natal, 4110, South Africa

  • Khayelitsha CRS

    Cape Town, Western Cape, 7784, South Africa

  • Kliptown Soweto CRS

    Johannesburg, Gauteng, 1409, South Africa

  • MeCRU CRS

    Pretoria, Gauteng, 0204, South Africa

  • Qhakaza Mbokodo Research Clinic CRS

    Ladysmith, KwaZulu-Natal, 3370, South Africa

  • Rustenburg CRS

    Rustenburg, North West, 0300, South Africa

  • Setshaba Research Centre CRS

    Soshanguve, Gauteng, 0152, South Africa

  • Soweto HVTN CRS

    Johannesburg, Gauteng, 1862, South Africa

  • Verulam CRS

    Verulam, KwaZulu-Natal, South Africa

  • Walter Sisulu University HIV Vaccine Research Unit CRS

    Mthatha, Eastern Cape, 5099, South Africa

  • eThekwini CRS

    Durban, KwaZulu-Natal, 4013, South Africa

Conditions

Explore the condition pages connected to this study.