Evidence map›Paper›PMID 35567422›Full record

ArticleAnnals of clinical and translational neurology2022

An expanded access program of risdiplam for patients with Type 1 or 2 spinal muscular atrophy.

Jennifer M Kwon, Kapil Arya, Nancy Kuntz, Han C Phan, Cory Sieburg, Kathryn J Swoboda, Aravindhan Veerapandiyan, Beverly Assman, Silvia Bader-Weder, Travis L Dickendesher and 5 more

Registry-linked trialOpen access · goldAbstract readMulticenter Study
In one paragraph

Article in Annals of clinical and translational neurology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04256265 (An Expanded Access Program for Risdiplam in Patients With Type 1 or Type 2 Spinal Muscular Atrophy), which is not on this map. Cited by 19 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 3 pooled it
5.4field-weighted citation impact, top 4% 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.

NCT04256265 approved for marketingnot on this map

An Expanded Access Program for Risdiplam in Patients With Type 1 or Type 2 Spinal Muscular Atrophy

Typeexpanded_accessSponsorGenentech, Inc.ConditionsMuscular Atrophy, SpinalArmsRisdiplam
3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 3 syntheses or guidelines pooled it, 36 citations in OpenAlex.

  1. Pooled it
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  10. Clinical perspectives: Treating spinal muscular atrophy.Molecular therapy : the journal of the American Society of Gene Therapy · 2024
    Review
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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

15 authors at 7 institutions in 3 countries.

Jennifer M KwonDivision of Pediatric Neurology, Department of Neurology, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, USA.ORCID 0000-0002-7720-2490
Kapil AryaDivision of Neurology, Department of Pediatrics, Arkansas Children's Hospital, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA.
Nancy KuntzDivision of Neurology, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
Han C PhanRare Disease Research, LLC, Atlanta, Georgia, USA.
Cory SieburgDivision of Pediatric Neurology, Department of Neurology, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, USA.
Kathryn J SwobodaDepartment of Neurology, Massachusetts General Hospital, Boston, Massachusetts, USA.
Aravindhan VeerapandiyanDivision of Neurology, Department of Pediatrics, Arkansas Children's Hospital, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA.ORCID 0000-0002-3065-3956
Beverly AssmanGenentech, South San Francisco, California, USA.
Silvia Bader-WederF. Hoffmann-La Roche Ltd, Basel, Switzerland.
Travis L DickendesherGenentech, South San Francisco, California, USA.
Jennifer HansenGenentech, South San Francisco, California, USA.
Helen LinGenentech, South San Francisco, California, USA.
Ying YanGenentech, South San Francisco, California, USA.
Vamshi K RaoDivision of Neurology, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.ORCID 0000-0002-0130-2292
US Expanded Access Program Working Group
Arkansas Children's Hospital · USNorthwestern University · USUniversity of Wisconsin–Madison · USMassachusetts General Hospital · USRare Disease Therapeutics (United States) · USRoche (Switzerland) · CHTiGenix (Spain) · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe US risdiplam expanded access program (EAP; NCT04256265) was opened to provide individuals with Type 1 or 2 spinal muscular atrophy (SMA) who had no satisfactory treatment options access to risdiplam prior to commercial availability. The program was designed to collect safety data during risdiplam treatment.

methodsPatients were enrolled from 23 non-preselected sites across 17 states and treated with risdiplam orally once daily. Eligible patients had a 5q autosomal recessive Type 1 or 2 SMA diagnosis, were aged ≥2 months at enrollment, and were ineligible for available and approved SMA treatments or could not continue treatment due to a medical condition, lack/loss of efficacy, or the COVID-19 pandemic.

resultsOverall, 155 patients with Type 1 (n = 73; 47.1%) or 2 SMA (n = 82; 52.9%) were enrolled and 149 patients (96.1%) completed the EAP (defined as obtaining access to commercial risdiplam, if desired). The median treatment duration was 4.8 months (range, 0.3-9.2 months). The median patient age was 11 years (range, 0-50 years), and most patients (n = 121; 78%) were previously treated with a disease-modifying therapy. The most frequently reported adverse events were diarrhea (n = 10; 6.5%), pyrexia (n = 7; 4.5%), and upper respiratory tract infection (n = 5; 3.2%). The most frequently reported serious adverse event was pneumonia (n = 3; 1.9%). No deaths were reported.

interpretationIn the EAP, the safety profile of risdiplam was similar to what was reported in pivotal risdiplam clinical trials. These safety data provide further support for the use of risdiplam in the treatment of adult and pediatric patients with SMA.

Indexed as

COVID-19 Drug TreatmentMuscular Atrophy, SpinalAdultAzo CompoundsChildHumansPandemicsPyrimidinesAzo CompoundsPyrimidinesRisdiplam

Identifiers

PMID35567422
PMCPMC9186129
OpenAlexW4280602766

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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.