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the claim
In the PURPOSE 1 trial, no HIV infections occurred among women who received twice-yearly lenacapavir.
the verdict
SUPPORTED
the evidence backs this
Recorded sources
5 sources for · 0 against
Is it true that in the PURPOSE 1 trial, no HIV infections occurred among women who received twice-yearly lenacapavir?
Yes. The PURPOSE 1 primary report states that among 2,134 participants in the lenacapavir group there were 0 incident HIV infections, and a review of the PURPOSE trials likewise reports zero infections among approximately 2,134 lenacapavir recipients. CDC's 2025 recommendation also notes no HIV infections among pregnant women who received lenacapavir in that trial.
Verdict: SUPPORTED · 5 sources for, 0 against · Last checked
Evidence for · 5
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Bekker, L., Das, M., Karim, Q. A., Ahmed, K., Batting, J., Brumskine, W., Gill, K., Harkoo, I., Jaggernath, M., Kigozi, G., Kiwanuka, N., Kotze, P., Lebina, L., Louw, C. E., Malahleha, M., Manentsa, M., Mansoor, L., Moodley, D., Naicker, V., & Naidoo, L. (2024). Twice-Yearly Lenacapavir or Daily F/TAF for HIV Prevention in Cisgender Women.. doi.org. https://doi.org/10.1056/NEJMoa2407001
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More for · 4
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Clinical Recommendation for the Use of Injectable Lenacapavir as HIV Preexposure Prophylaxis — United States, 2025 | MMWRMinusSASstats. (n.d.). cdc.gov. https://www.cdc.gov/mmwr/volumes/74/wr/mm7435a1.htm
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LenacDr. Pasham Umaapavir and Long-Acting HIV Therapeutics Pharmacological Mechanisms, Clinical Evidence from the PURPOSE Trials, and Future Directions in Antiretroviral Therapy. (2026). doi.org. https://doi.org/10.52403/ijrr.20260760
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RR, P., KW, H., A, L., J, C., KM, B., & AP, K. (2025). Clinical Recommendation for the Use of Injectable Lenacapavir as HIV Preexposure Prophylaxis - United States, 2025.. doi.org. https://doi.org/10.15585/mmwr.mm7435a1
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GD, M. (2026). Lenacapavir and global HIV prevention: a breakthrough at risk of leaving millions behind.. doi.org. https://doi.org/10.1097/ms9.0000000000004783
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