[CROI 2026] [Press release] Aicuris: Pritelivir demonstrates superior efficacy in people living with HIV with refractory HSV in Phase 3 PRIOH-1

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Aicuris press release

Aicuris announced superior efficacy results from a subgroup analysis of its pivotal Phase 3 trial (PRIOH-1) evaluating pritelivir vs. investigator’s choice in people living with HIV with refractory herpes simplex virus (HSV) infection. The results were presented as a late-breaking oral presentation at CROI 2026.

In the subgroup analysis of people living with HIV enrolled in PRIOH-1, pritelivir demonstrated superior lesion healing, achieving 61% complete lesion healing compared with 20% receiving investigator’s choice therapy with an adjusted treatment difference of 37% (p = 0.027) in people living with HIV with refractory HSV
infections.

People living with HIV face a higher risk of severe, refractory HSV infections due to weakened immunity. HSV-2 also increases HIV acquisition risk, and co-infection can cause aggressive, prolonged, painful lesions and may accelerate HIV progression. Repeated antiviral use for treatment of HSV recurrence increases the risk of resistance, underscoring the urgent need for more effective HSV therapies for this vulnerable population.

Read the full press release here.


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Source : Aicuris

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