Research

Mixed

Initiation of modern antiretroviral therapy (ART), specifically integrase strand transfer inhibitors (INSTIs) like dolutegravir and bictegravir combined with tenofovir alafenamide (TAF), causes significant, sustained weight gain in people living with HIV, disproportionately affecting women and Black patients.

If you are living with HIV and starting or taking modern medication (specifically drugs ending in '-gravir' like dolutegravir or bictegravir, and TAF), expect significant weight gain, especially if you are a woman or Black. This is not just 'getting older' or 'eating too much'; it is a known side effect of the medication's interaction with your metabolism. Talk to your doctor about your risk factors. They may consider regimens with TDF (which mitigates weight gain) or other alternatives, though these may have other side effects. Be aware that standard diet and exercise might be less effective for this specific type of gain, and emerging weight-loss medications might be considered in the future.

GoodSupportsHIGH confidence
Further data highlighted the differential effect of different classes of ARVs on weight, but also the effect of race and sex, with INSTIs having the biggest effect on weight gain, and Black patients and women being most affected by weight gain.
Nomathemba Chandiwana et al. · The Journal of Clinical Endocrinology & Metabolism · 2023

Why this rating

Supported by large prospective randomized controlled trials (ADVANCE, NAMSAL) and extensive observational data, though exact molecular mechanisms remain partially unresolved.

Source

Weight Gain After HIV Therapy Initiation: Pathophysiology and Implications

Nomathemba Chandiwana et al. · The Journal of Clinical Endocrinology & Metabolism · 2023

DOI 10.1210/clinem/dgad411

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DOI resolved against Crossref · corpus check 2026-06-10

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