Evidence map›Paper›PMID 40936177›Full record

ArticleDevelopmental medicine and child neurology2026

Real-world benefits and tolerability of trofinetide for the treatment of Rett syndrome: The LOTUS study.

Louise Cosand, Haya Mayman, Jenny Downs, Victor Abler

Abstract read
In one paragraph

Article in Developmental medicine and child neurology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

9 citing papers in PubMed.

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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

4 authors.

Louise CosandAcadia Pharmaceuticals, San Diego, CA, USA.ORCID 0009-0000-1896-0147
Haya MaymanAcadia Pharmaceuticals, San Diego, CA, USA.
Jenny DownsThe Kids Research Institute Australia, The Centre for Child Health Research, University of Western Australia, Perth, WA, Australia.ORCID 0000-0001-7358-9037
Victor AblerAcadia Pharmaceuticals, San Diego, CA, USA.

Funding

Acadia Pharmaceuticals, Inc.
6 · The paper itself

Abstract

aimTo describe the real-world effects of trofinetide in individuals with Rett syndrome (RTT) using the 18-month follow-up analysis of the LOTUS study.

methodCaregivers of any patients who were prescribed trofinetide under routine clinical care were eligible to participate. Assessments included the Behavioral Improvement Questionnaire (BIQ), the Quality of Life Inventory-Disability (QI-Disability) questionnaire, the Gastrointestinal Health Questionnaire, and safety monitoring. Data are reported to 12 months since the initiation of trofinetide.

resultsOverall, 227 caregivers participated in this follow-up. The median trofinetide dose at week 1 was 36.0% of the target dose and increased to over 80% by week 10 onwards; 55.2% of patients took the full trofinetide recommended daily dose. Caregivers (71%-90%) reported behavioral improvements across months 1 to 12 with the BIQ, including non-verbal communication (48%-71%), alertness (44%-70%), and social interaction and connectedness (33%-58%). The median QI-Disability total score change from baseline ranged from 4.7 to 4.6 in months 1 to 12. The incidence of diarrhea varied from weeks 1 to 12 (23%-50%) and months 4 to 12 (26%-38%); most reports of diarrhea were contained inside the patient's diaper. Safety reports were consistent with previous trofinetide clinical trials.

interpretationResults from the LOTUS study show improvements in the symptoms of RTT, with early insights into managing gastrointestinal symptoms in the context of real-world patient care.

Indexed as

Rett SyndromeAdolescentAdultCaregiversChildChild, PreschoolFemaleFollow-Up StudiesHumansMaleQuality of LifeSurveys and QuestionnairesTreatment Outcome

Identifiers

PMID40936177
PMCPMC12875184

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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.