Evidence map›Paper›PMID 42751311›Full record

Trial reportOpen forum infectious diseases2026

Efficacy and Safety of Pritelivir vs Foscarnet for the Treatment of Acyclovir-Refractory Herpes Simplex Virus Infection in Immunocompromised Adults: A Randomized, Open-Label Phase 2 Trial.

Camille N Kotton, Kimberly A Workowski, Princy N Kumar, Robin K Avery, Roy F Chemaly, Nicolas C Issa, Moti Ramgopal, Joshua T Schiffer, Joerg Albrecht, Hollis R O'Neal and 12 more

Abstract readClinical Trial
In one paragraph

Trial report in Open forum infectious diseases, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

22 authors.

Camille N KottonDivision of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts, USA.
Kimberly A WorkowskiDepartment of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA.ORCID https://orcid.org/0000-0002-9918-9493
Princy N KumarDivision of Infectious Diseases and Tropical Medicine, Georgetown University Medical Center, Washington, District of Columbia, USA.ORCID https://orcid.org/0000-0002-5994-2727
Robin K AveryDivision of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
Roy F ChemalyDepartment of Infectious Diseases, Infection Control and Employee Health, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.ORCID https://orcid.org/0000-0002-0277-3088
Nicolas C IssaDivision of Infectious Diseases Brigham and Women's Hospital and Dana-Farber Cancer Institute, Boston, Massachusetts, USA.
Moti RamgopalMidway Immunology and Research Center, Fort Pierce, Florida, USA.
Joshua T SchifferVaccine and Infectious Disease Division, Fred Hutchison Cancer Center, Seattle, Washington, USA.
Joerg AlbrechtDepartment of Dermatology, Cook County Health, Chicago, Illinois, USA.
Hollis R O'NealDepartment of Medicine, Louisiana State University Health Sciences Center, Baton Rouge, Louisiana, USA.
Pranatharthi ChandrasekarDivision of Infectious Diseases, Karmanos Cancer Center, Wayne State University School of Medicine, Detroit, Michigan, USA.ORCID https://orcid.org/0000-0003-0774-1058
Tanya S SchreibmanCAN Community Health, Sarasota, Florida, USA.
Mayur RameshDivision of Infectious Diseases, Henry Ford Health System, Detroit, Michigan, USA.ORCID https://orcid.org/0000-0002-1677-3994
Michael G IsonNational Institutes of Health, Bethesda, Maryland, USA.ORCID https://orcid.org/0000-0003-3347-9671
Melanie E SumnerAiCuris Anti-Infective Cures AG, Wuppertal, Germany.ORCID https://orcid.org/0009-0009-0205-4970
Aaron DaneDanestat Consulting Limited, Macclesfield, Cheshire, UK.
Bernadette SurujballyAiCuris Anti-Infective Cures AG, Wuppertal, Germany.
Burkhard TimmlerAiCuris Anti-Infective Cures AG, Wuppertal, Germany.
Manickam RangarajuAiCuris Anti-Infective Cures AG, Wuppertal, Germany.
Genofeva A PapanicolaouDepartment of Subspecialty Medicine, Infectious Disease Service, Memorial Sloan Kettering Cancer Center, New York, New York, USA.ORCID https://orcid.org/0000-0002-2891-079X
Alexander BirkmannAiCuris Anti-Infective Cures AG, Wuppertal, Germany.ORCID https://orcid.org/0000-0001-5670-4814
Anna WaldDivision of Allergy and Infectious Diseases, Department of Medicine, Department of Epidemiology, Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, USA.ORCID https://orcid.org/0000-0003-3486-6438

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Immunocompromised patients are at risk for severe, prolonged herpes simplex virus (HSV) recurrences. Refractory disease and intolerance to standard therapy drive an unmet medical need. Pritelivir, a novel HSV helicase-primase inhibitor, has shown favorable tolerability and efficacy in immunocompetent adults. Methods: PRIOH-1, a multicenter, randomized, open-label Phase 2 trial, compared oral pritelivir (400-mg loading dose followed by 100 mg daily) with intravenous foscarnet (40 mg/kg q8h or 60 mg/kg q12h) for up to 28 days in immunocompromised adults with acyclovir-refractory HSV (Part A). Participants with refractoriness/intolerance to foscarnet received pritelivir (Part B). The primary end point was time to lesion healing; secondary end points included healing rate, HSV DNA detection, and resistance. Results: Twenty-two participants enrolled in Part A, 8 in Part B. In Part A, median time to healing was 26.0 days (95% CI, 13.0-31.0) with pritelivir, vs not estimable (95% CI, 20.0-NE) with foscarnet (HR, 2.7; 95% CI, 0.33-21.8; Conclusions: Pritelivir demonstrated encouraging efficacy and favorable safety in immunocompromised adults with limited treatment options, supporting Phase 3 evaluation for the treatment of refractory HSV infection in this population.

Indexed as

herpes simplex virusimmunocompromisedpritelivirrefractoryresistance

Identifiers

PMID42751311
PMCPMC13579483

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.