A Study to Investigate the Pharmacokinetics and Safety of Risdiplam in Infants With Spinal Muscular Atrophy

NCT ID: NCT05808764

Last Updated: 2026-01-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

10 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-04-26

Study Completion Date

2026-11-30

Brief Summary

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This study will evaluate the pharmacokinetics (PK) and safety of risdiplam in participants with spinal muscular atrophy (SMA) under 20 days of age at first dose.

Detailed Description

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Conditions

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Muscular Atrophy, Spinal

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Risdiplam

Participants will receive risdiplam once daily for 28 days.

Group Type EXPERIMENTAL

Risdiplam

Intervention Type DRUG

Participants will receive 0.15 mg/kg risdiplam orally once daily for 28 days.

Interventions

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Risdiplam

Participants will receive 0.15 mg/kg risdiplam orally once daily for 28 days.

Intervention Type DRUG

Other Intervention Names

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Evrysdi

Eligibility Criteria

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Inclusion Criteria

* Male or female newborn infant aged \<20 days at first dose
* Newborn infants with genetic diagnosis of 5q-autosomal recessive SMA or newborn infants identified as positive for SMA via newborn screening or via prenatal testing.
* Gestational age equal to or greater than 37 weeks
* Receiving adequate nutrition and hydration at the time of screening
* Adequately recovered from any acute illness at baseline and considered well enough to participate in the study
* Parent/caregiver is willing to consider nasogastric, nasojejunal, or gastrostomy tube placement during the study to maintain safe hydration, nutrition, and treatment delivery, if recommended by the investigator.

Exclusion Criteria

* Presence of clinical symptoms or signs consistent with SMA Type 0
* In the opinion of the investigator, inadequate venous or capillary blood access for the study procedures
* Systolic blood pressure or diastolic blood pressure or heart rate abnormalities
* Presence of clinically relevant electrocardiogram (ECG) abnormalities
* The infant (or the person breastfeeding the infant) taking any of the following: any inhibitor of CYP3A4 taken within 2 weeks (or within 5 times the elimination half-life, whichever is longer) prior to dosing, any inducer of CYP3A4 taken within 4 weeks (or within 5 times the elimination half-life, whichever is longer prior to dosing, and/or use of any multidrug and toxin extrusion (MATE) substrates taken within 2 weeks (or within 5 times the elimination half-life, whichever is longer) prior to dosing
* Concurrent or previous administration of nusinersen or onasemnogene abeparvovec
* Clinically significant abnormalities in laboratory test
Maximum Eligible Age

19 Days

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Hoffmann-La Roche

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Clinical Trials

Role: STUDY_DIRECTOR

Hoffmann-La Roche

Locations

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Ann and Robert H. Lurie Children Hospital of Chicago

Chicago, Illinois, United States

Site Status RECRUITING

University Of Michigan

Ann Arbor, Michigan, United States

Site Status RECRUITING

Clinic for Special Children.

Gordonville, Pennsylvania, United States

Site Status RECRUITING

Hopital Universitaire des Enfants Reine Fabiola

Brussels, , Belgium

Site Status RECRUITING

CHR Citadelle

Liège, , Belgium

Site Status RECRUITING

Children'S Hospital of Eastern Ontario

Ottawa, Ontario, Canada

Site Status RECRUITING

Universitatsklinikum Essen

Essen, , Germany

Site Status RECRUITING

Fondazione Serena Onlus - CENTRO CLINICO NEMO

Milano, Emilia-Romagna, Italy

Site Status RECRUITING

Fondazione Policlinico Univeristario A. Gemelli

ROMA, Emilia-Romagna, Italy

Site Status RECRUITING

UMC Utrecht

Utrecht, , Netherlands

Site Status RECRUITING

OUS (Oslo University Hospital), Rikshospitalet

Oslo, , Norway

Site Status RECRUITING

Uniwersyteckie Centrum Kliniczne

Gdansk, , Poland

Site Status RECRUITING

Instytut Pomnik - Centrum Zdrowia Dziecka

Warsaw, , Poland

Site Status RECRUITING

Countries

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United States Belgium Canada Germany Italy Netherlands Norway Poland

Central Contacts

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Reference Study ID Number: BN44619 https://forpatients.roche.com/

Role: CONTACT

888-662-6728 (U.S. Only)

Other Identifiers

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2023-505602-42-00

Identifier Type: CTIS

Identifier Source: secondary_id

BN44619

Identifier Type: -

Identifier Source: org_study_id

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