Evidence map›Paper›PMID 37957377›Full record

ArticleNature medicine2023

Model-based predictions of protective HIV pre-exposure prophylaxis adherence levels in cisgender women.

Lanxin Zhang, Sara Iannuzzi, Ayyappa Chaturvedula, Elizabeth Irungu, Jessica E Haberer, Craig W Hendrix, Max von Kleist

Open access · hybridAbstract read
In one paragraph

Article in Nature medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
5.2field-weighted citation impact, top 3% of its field
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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

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  17. Dosing forgiveness of oral PrEP for cisgender women remains uncertain.Journal of the International AIDS Society · 2025
    Article
  18. A Cross-Biomeasure Study to Optimize Antiretroviral Adherence Estimation.Journal of acquired immune deficiency syndromes (1999) · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 2 countries.

Lanxin Zhang *Project group 5 'Systems Medicine of Infectious Diseases', Robert Koch Institute, Berlin, Germany.ORCID 0000-0002-3740-4450
Sara Iannuzzi *Project group 5 'Systems Medicine of Infectious Diseases', Robert Koch Institute, Berlin, Germany.ORCID 0009-0003-3704-5931
Ayyappa ChaturvedulaDepartment of Pharmacotherapy, University of North Texas Health Science Center, Fort Worth, TX, USA.
Elizabeth IrunguJhpiego Corporation, Nairobi, Kenya.
Jessica E HabererCenter for Global Health, Massachusetts General Hospital, Boston, MA, USA.
Craig W HendrixDivision of Clinical Pharmacology, Johns Hopkins University, Baltimore, MD, USA.
Max von KleistProject group 5 'Systems Medicine of Infectious Diseases', Robert Koch Institute, Berlin, Germany. max.kleist@fu-berlin.de.ORCID 0000-0001-6587-6394
Robert Koch Institute · DEHarvard University · USJohns Hopkins University · USUniversity of North Texas · US

Funding

LC: HIV Prevention Trials Network - Laboratory Support for the SARS-CoV-2 Seroprevalence Study (CoVPN 5002)UM1AI068613 · NIAID · JOHNS HOPKINS UNIVERSITY · PI SUSAN H ESHLEMAN, Mark A Marzinke · 2011 to 2026
$100.2M
Next generation real-time monitoring for PrEP adherence in young Kenyan womenR01MH109309 · NIMH · MASSACHUSETTS GENERAL HOSPITAL · PI BAETEN, JARED, HABERER, JESSICA ELIZABETH · 2016 to 2019
$2.7M
NIAID NIH HHS UM1 AI068613NIMH NIH HHS R01 MH109309
6 · The paper itself

Abstract

Most human immunodeficiency virus (HIV) infections occur in cisgender women in resource-limited settings. In women, self-protection with emtricitabine/tenofovir disoproxil fumarate pre-exposure prophylaxis (FTC/TDF-PrEP) constitutes a major pillar of HIV prevention. However, clinical trials in women had inconsistent outcomes, sparking uncertainty about adherence requirements and reluctance in evaluating on-demand regimens. We analyzed data from published FTC/TDF-PrEP trials to establish efficacy ranges in cisgender women. In a 'bottom-up' approach, we modeled hypotheses in the context of risk-group-specific, adherence-efficacy profiles and challenged those hypotheses with clinical data. We found that different clinical outcomes were related to the proportion of women taking the product, allowing coherent interpretation of the data. Our analysis showed that 90% protection was achieved when women took some product. We found that hypotheses of putative male/female differences were either not impactful or statistically inconsistent with clinical data. We propose that differing clinical outcomes could arise from pill-taking behavior rather than biological factors driving specific adherence requirements in cisgender women.

Indexed as

Anti-HIV AgentsHIV InfectionsPre-Exposure ProphylaxisEmtricitabineFemaleHumansMaleMedication AdherenceTenofovirAnti-HIV AgentsEmtricitabineTenofovir

Identifiers

PMID37957377
PMCPMC10667095
OpenAlexW4388625778

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

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.