Evidence map›Paper›PMID 41247234›Full record

SynthesisCPT: pharmacometrics & systems pharmacology2026

A Model-Based Meta-Analysis Framework Quantifying Drivers of Placebo Response in Atopic Dermatitis Trials.

Jean C Serrano, John Maringwa, Roel Straetemans, Wouter Willems, Sophia G Liva, Jeroen Verhoeven, Jennifer L Ford, Kuan-Hsiang Gary Huang, Jonathan J Hubbard, Jonathan L French and 3 more

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in CPT: pharmacometrics & systems pharmacology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
–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

4 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Review
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

13 authors.

Jean C SerranoJohnson & Johnson, Cambridge, Massachusetts, USA.ORCID https://orcid.org/0000-0002-2359-1945
John MaringwaJohnson & Johnson, Leiden, the Netherlands.ORCID https://orcid.org/0000-0002-5423-0800
Roel StraetemansJohnson & Johnson, Beerse, Belgium.
Wouter WillemsJohnson & Johnson, Beerse, Belgium.ORCID https://orcid.org/0009-0006-5831-3749
Sophia G LivaJohnson & Johnson, Spring House, Pennsylvania, USA.
Jeroen VerhoevenJohnson & Johnson, Beerse, Belgium.ORCID https://orcid.org/0000-0002-6641-7760
Jennifer L FordJohnson & Johnson, Spring House, Pennsylvania, USA.ORCID https://orcid.org/0000-0002-1740-5704
Kuan-Hsiang Gary HuangJohnson & Johnson, Spring House, Pennsylvania, USA.ORCID https://orcid.org/0000-0003-1910-9367
Jonathan J HubbardJohnson & Johnson, Spring House, Pennsylvania, USA.ORCID https://orcid.org/0000-0002-5740-7325
Jonathan L FrenchJohnson & Johnson, Spring House, Pennsylvania, USA.ORCID https://orcid.org/0000-0001-9649-169X
Damayanthi DevineniJohnson & Johnson, Raritan, New Jersey, USA.
An VermeulenJohnson & Johnson, Beerse, Belgium.ORCID https://orcid.org/0000-0002-3094-7110
Chandni ValiathanJohnson & Johnson, La Jolla, California, USA.

Funding

Johnson & Johnson
6 · The paper itself

Abstract

Atopic dermatitis (AD) clinical trials exhibit substantial placebo response variability, confounding efficacy assessments of novel therapies. Traditional meta-analyses have identified potential contributors to this variability but rely on single time-point estimates, which fail to account for dynamic, longitudinal response patterns across trials. To overcome this limitation, we developed a model-based meta-analysis (MBMA) framework that characterizes time-course projections of EASI-75 placebo responses while accounting for key covariates. A systematic literature review identified 40 moderate-to-severe AD trials (18 Phase 2, 22 Phase 3), encompassing 4827 patients, suitable for longitudinal modeling. Modeling results highlighted concomitant therapy as a significant driver of placebo response, with trials permitting topical corticosteroids (TCS) demonstrating a 1.8-fold increase in EASI-75 placebo rates compared to trials without concomitant therapy. Additionally, baseline disease severity of the study population, as reflected by the mean baseline EASI score, was inversely associated with placebo response; each 1-point increase in baseline EASI reduced EASI-75 placebo rates at Weeks 12 and 16 by 0.96-fold. Time-course modeling suggested that placebo responses plateaued by Week 12, with EASI-75 outcomes at Week 12 capturing 94% of the projected response at Week 16. Overall, this MBMA framework provides quantitative guidance to optimize clinical trial design, refine power calculations, and improve the differentiation between therapeutic and placebo effects in AD drug development.

Indexed as

Adrenal Cortex HormonesDermatitis, AtopicPlacebo EffectHumansSeverity of Illness IndexTreatment OutcomeAdrenal Cortex Hormonesatopic dermatitisEASImodel‐based meta‐analysisplacebo

Identifiers

PMID41247234
PMCPMC12896390

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.