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Treatment adherence

PrEP adherence in Partners PrEP

Haberer JE, Baeten JM, Campbell J, et al. · PLoS medicine · 2013

Open access · cc by · source: Europe PMC

In a Partners PrEP adherence substudy, median pill-count and MEMS adherence exceeded 97%, and counseling restored most low adherers to ≥80%.

Study at a glance

Design
Cohort — Partners PrEP adherence substudy with UPC, MEMS, and stepped counseling
N
N=1147 · HIV-uninfected partners at three East African sites
Population
HIV-uninfected partners in serodiscordant couples on PrEP within a clinical trial
Outcome
Pill-count and MEMS adherence, and return to ≥80% after counseling

Structured fields used in claim comparison tables when every cited study has a complete layer.

Key findings

Median adherence 99.1% (UPC) and 97.2% (MEMS); few had sustained low UPC adherence; among those triggered, 92% returned to ≥80% UPC after intervention sessions.

Methodology

At three Partners PrEP sites, 1,147 HIV-uninfected partners received unannounced pill counts (UPC) and MEMS monitoring plus stepped adherence counseling when UPC fell below 80%.

Limitations

High adherence in a trial with intensive monitoring may not equal routine clinic PrEP adherence.

How this study connects

Role on claims

Each row is a claim on a concept or method page where this paper supports, challenges, or qualifies the statement. Roles are hand-checked — not a model guess.

  • SupportsTreatment Adherenceconcept

    Median adherence 99.1% (UPC) and 97.2% (MEMS); few had sustained low UPC adherence; among those triggered, 92% returned to ≥80% UPC after intervention sessions.

    Evidence for the claim as stated.

  • At three Partners PrEP sites, 1,147 HIV-uninfected partners had unannounced pill counts and MEMS monitoring, with stepped counselling when UPC adherence fell below 80%. Median adherence was 99.1% (UPC) and 97.2% (MEMS); among those triggered, 92% returned to ≥80% UPC after sessions. Those figures describe intensively monitored trial adherence, including in a placebo-controlled parent study, not routine-clinic PrEP taking.

    Evidence for the claim as stated.

  • Who is blinded, and whether a placebo exists, disagrees across the four papers. SEPP blinded the collector while comparing an identifiable parenting programme with standard care. Partners PrEP adherence work sits inside a placebo-controlled antiretroviral trial but reports UPC/MEMS adherence (99.1%/97.2%), not a placebo-subtracted efficacy estimate. The child-care zBMI trial is an open cluster-style programme contrast. FibriCheck does not assign a treatment at all. One method label is doing four jobs.

    Evidence for the claim as stated.

Open questions

Tensions this paper is part of

From concept pages' “where studies disagree.” Disagreement means the same question; scope means different assays, populations, or outcomes.

  • Scope difference — different assays, populations, or outcomes

    Who is blinded, and whether a placebo exists, disagrees across the four papers. SEPP blinded the collector while comparing an identifiable parenting programme with standard care. Partners PrEP adherence work sits inside a placebo-controlled antiretroviral trial but reports UPC/MEMS adherence (99.1%/97.2%), not a placebo-subtracted efficacy estimate. The child-care zBMI trial is an open cluster-style programme contrast. FibriCheck does not assign a treatment at all. One method label is doing four jobs.

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