CLINICAL TRIALS PROFILE FOR RISDIPLAM

All Clinical Trials for RISDIPLAM

Trial ID	Title	Status	Sponsor	Phase	Start Date	Summary
NCT02633709 ↗	A Study to Investigate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Risdiplam (RO7034067) Given by Mouth in Healthy Volunteers	Completed	Hoffmann-La Roche	Phase 1	2016-01-07	The objective of this study is to assess the safety and tolerability of Risdiplam (RO7034067) in healthy people. The study will assess what the body does to Risdiplam (RO7034067) and what Risdiplam (RO7034067) does to the body. Risdiplam (RO7034067) will be given by mouth in gradually increasing doses. The data from this study will help to define the dose to further explore Risdiplam (RO7034067) in patients with Spinal Muscular Atrophy.
NCT02908685 ↗	A Study to Investigate the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics and Efficacy of Risdiplam (RO7034067) in Type 2 and 3 Spinal Muscular Atrophy (SMA) Participants	Active, not recruiting	Hoffmann-La Roche	Phase 2/Phase 3	2016-10-20	Multi-center, randomized, double-blind, placebo-controlled study to assess the safety, tolerability, pharmacokinetics, pharmacodynamics, and efficacy of Risdiplam in adult and pediatric participants with Type 2 and Type 3 SMA. The study consists of two parts, an exploratory dose finding part (Part 1) of Risdiplam for 12 weeks and a confirmatory part (Part 2) of Risdiplam for 24 months.
NCT02913482 ↗	Investigate Safety, Tolerability, PK, PD and Efficacy of Risdiplam (RO7034067) in Infants With Type1 Spinal Muscular Atrophy	Active, not recruiting	Hoffmann-La Roche	Phase 2/Phase 3	2016-12-24	Open-label, multi-center clinical study is to assess the safety, tolerability, pharmacokinetic (PK), pharmacodynamics (PD), and efficacy of Risdiplam (RO7034067) in infants with Type 1 spinal muscular atrophy (SMA). The study consists of two parts, an exploratory dose finding part (Part 1) and a confirmatory part (Part 2) which will investigate Risdiplam (RO7034067) for 24-months at the dose selected in Part 1.
NCT03032172 ↗	A Study of Risdiplam (RO7034067) in Adult and Pediatric Participants With Spinal Muscular Atrophy	Active, not recruiting	Hoffmann-La Roche	Phase 2	2017-03-03	This is a multi-center, exploratory, non-comparative, and open-label study to investigate the safety, tolerability, PK, and PK/PD relationship of risdiplam in adults, children and infants with Spinal Muscular Atrophy (SMA) previously enrolled in Study BP29420 (Moonfish) with the splicing modifier RO6885247 or previously treated with nusinersen, olesoxime or AVXS-101.
NCT03040635 ↗	A Study to Investigate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Risdiplam (RO7034067) in Healthy Japanese Participants	Completed	Hoffmann-La Roche	Phase 1	2017-03-22	This is a randomized, placebo-controlled study to investigate the safety, tolerability, pharmacokinetics and pharmacodynamics of single oral doses of Risdiplam in healthy Japanese participants.
NCT03779334 ↗	A Study of Risdiplam in Infants With Genetically Diagnosed and Presymptomatic Spinal Muscular Atrophy	Recruiting	Hoffmann-La Roche	Phase 2	2019-08-07	A global study of oral risdiplam in pre-symptomatic participants with spinal muscular atrophy (SMA).
NCT03920865 ↗	A Study to Investigate the Effect of Hepatic Impairment on the Pharmacokinetics and Safety and Tolerability of a Single Oral Dose of Risdiplam Compared to Matched Healthy Participants With Normal Hepatic Function	Completed	Hoffmann-La Roche	Phase 1	2019-05-16	This is a multi-center, open-label, non-randomized, parallel-group, 2-part study to evaluate the effect of hepatic impairment on the PK and safety and tolerability of a single oral dose of risdiplam compared to matched healthy participants with normal hepatic function.

Clinical Trial Conditions for RISDIPLAM

Condition Name

Condition Name for RISDIPLAM
Intervention	Trials
Spinal Muscular Atrophy	9
Muscular Atrophy, Spinal	9
SMA	3
Spinal Muscular Atrophy Type 2	2

Condition MeSH

Condition MeSH for RISDIPLAM
Intervention	Trials
Muscular Atrophy, Spinal	18
Muscular Atrophy	17
Atrophy	17
Neuromuscular Diseases	2

Clinical Trial Locations for RISDIPLAM

Trials by Country

Trials by Country for RISDIPLAM
Location	Trials
United States	25
Italy	16
Brazil	6
Belgium	5
Poland	5

Trials by US State

Trials by US State for RISDIPLAM
Location	Trials
New York	5
Texas	4
Florida	4
California	4
Massachusetts	3

Clinical Trial Progress for RISDIPLAM

Clinical Trial Phase

Clinical Trial Phase for RISDIPLAM
Clinical Trial Phase	Trials
PHASE2	1
Phase 4	5
Phase 3	3

Clinical Trial Status

Clinical Trial Status for RISDIPLAM
Clinical Trial Phase	Trials
Not yet recruiting	9
Completed	4
Recruiting	3

Clinical Trial Sponsors for RISDIPLAM

Sponsor Name

Sponsor Name for RISDIPLAM
Sponsor	Trials
Hoffmann-La Roche	13
Scholar Rock, Inc.	2
Genentech, Inc.	2

Sponsor Type

Sponsor Type for RISDIPLAM
Sponsor	Trials
Industry	19
Other	1

Clinical Trials Update, Market Analysis, and Projection for Risdiplam

Last updated: January 27, 2026

Summary

Risdiplam (marketed as Evrysdi) is an oral splicing modifier developed by Roche for the treatment of spinal muscular atrophy (SMA). Approved by the FDA in August 2020 and EMA in March 2021, it represents a significant advancement in SMA management, offering a non-invasive, oral alternative to previous therapies. This report provides a detailed update on ongoing and completed clinical trials, analyzes current market dynamics, and projects future growth trajectories through 2030.

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Clinical Trials Update

Overview of Risdiplam Clinical Development

Phase	Status	Purpose	Number of Trials	Key Findings / Updates
Phase I	Completed	Safety, dosage	2	Demonstrated favorable safety profiles and dose-ranging data in adults; early pharmacokinetic insights.
Phase II	Completed	Efficacy, safety	3	Showed promising motor function improvements; acceptable safety in pediatric and adult cohorts.
Phase III	Ongoing / Completed (some results released)	Confirm efficacy, safety	4	Pivotal trials: FIREFISH (infants), SUNFISH (children/adults), JEWELFISH (post-marketing, open-label), Rainbowfish (ex-US pediatric). Results indicate significant motor function gains, durable effects, and manageable safety.

Key Clinical Trial Highlights

FIREFISH (NCT02913482) – Infants with Type 1 SMA

• Design: Open-label, two-part study.
• Participants: 41 infants (<6 months at baseline).
• Outcome Measures: Survival without permanent ventilation, achievement of motor milestones.
• Results (2022):
  • 85% achieved sitting independently.
  • 90% survived without permanent ventilation at 18 months.
  • Safety profile consistent with previous data; most adverse events mild/moderate.

SUNFISH (NCT02908685) – Children / Adults with Types 2 & 3 SMA

• Design: Randomized controlled trial.
• Participants: 180 patients aged 2-25.
• Outcome Measures: Motor function improvement via HFMSE and RULM scores.
• Results (2020):
  • Statistically significant improvements in motor function vs. placebo (mean HFMSE increase of 4.7 points).
  • Sustained safety profile; common adverse events included upper respiratory infections, fever.

JEWELFISH (NCT03945825) – Post-marketing Surveillance

• Design: Open-label, safety-of-use.
• Purpose: Assess long-term safety and effectiveness.
• Status: Enrolling; data pending.

Regulatory and Market Adoption Updates

• Risdiplam’s approval has catalyzed increased clinical use, with Roche sponsoring ongoing real-world evidence studies.
• In 2022, the EMA approved expanded indications to include broader SMA populations, supporting wider clinical application.
• The FDA approved extended dosing for certain age groups based on phase III data.

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Market Analysis

Current Market Landscape

Parameter	Details
Therapeutic Area	Spinal Muscular Atrophy (SMA)
Global SMA Market (2022)	Approx. USD 1.2 billion
Major Competitors	Spinraza (biogen), Zolgensma (Novartis), Evrysdi (Roche)
Market Share (2022)	Roche: ~25%, Biogen: ~50%, Novartis: ~15% (estimated)
Key Geographies	U.S., Europe, Japan, emerging markets

Market Drivers

1. Evolving SMA Treatment Paradigm

   • Shift towards oral therapies improves patient adherence.
   • Risdiplam offers a systemic approach suitable for early intervention.

2. Expanding Indications

   • Broader approval in pediatric populations fuels growth.
   • Lifelong management increases total addressable market.

3. Pricing & Reimbursement

   • High-cost therapy (~USD 340,000 annually in the U.S.).
   • Payer negotiations influence access expansion strategies.

Challenges & Barriers

Barrier	Implication
Price & Reimbursement	Limits access in low-income markets
Clinical Adoption	Hesitancy compared to established injectables
Long-term Safety Data	Limited data may slow consensus

Future Market Penetration

Projection Period	Market Size (USD)	CAGR	Notes
2023	USD 1.4 billion	—	Continued adoption in key markets
2025	USD 2.2 billion	22%	Expanded indications, more comprehensive payer coverage
2030	USD 4.5 billion	20%	Global expansion, new formulation approvals

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Competitive Landscape and Differentiation

Attribute	Evrysdi (Risdiplam)	Spinraza (Nusinersen)	Zolgensma (AAV-based gene therapy)
Administration	Oral daily	Intrathecal injections	Single IV infusion
Age Range Approved	Neonates, children, adults	Neonates, children	Infants, young children
Efficacy	Proven motor improvements	Proven, long-term efficacy	Superior early motor outcomes
Safety Profile	Mild/moderate adverse events	Invasive administration risk	Potential long-term safety concerns

Projections and Growth Drivers

Factors Accelerating Growth

• Pipeline Expansion: Ongoing trials in presymptomatic infants; potential for broader indications.
• Regulatory Approvals: Future approvals in emerging markets.
• Healthcare System Adoption: Integration into neonatal screening programs.
• Cost Reduction & Manufacturing Efficiencies: Lowering treatment costs.

Potential Market Limitations

• Pricing pressures driven by health authorities.
• Emergence of comparable oral therapies in development.

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Deep-Dive: Regulatory Policy Impact

Region	Key Policies	Impact on Risdiplam
U.S.	Orphan Drug Act, Accelerated approval pathways	Facilitates faster market entry and reimbursement
EU	Conditional approvals, Pediatric Regulations	Broader indication approvals, accelerated access
Japan	Sakigake Designation for rare disease therapies	Streamlined approval process

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Comparison Summary Table

Criterion	Risdiplam	Spinraza	Zolgensma
Mode of Action	Splicing modifier	Antisense oligonucleotide	Gene therapy
Administration	Oral daily	Intrathecal	Single IV infusion
Age Specificity	Neonates to adults	Neonates to children	Infants and young children
Efficacy	Significant motor gains	Long-term stabilization	Rapid motor function improvement
Long-Term Data	Emerging	Extensive	Limited

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FAQs

1. What are the main clinical advantages of Risdiplam over existing SMA therapies?

Risdiplam’s oral administration simplifies treatment protocols, reduces the need for invasive procedures, and allows for early, potentially presymptomatic intervention, which may improve long-term outcomes in SMA patients across all ages.

2. How does the efficacy of Risdiplam compare to Spinraza and Zolgensma?

Clinical trials demonstrate comparable or superior motor function gains with Risdiplam, especially in infants and older children. Zolgensma shows rapid motor improvements when administered early, but the long-term comparative efficacy varies between therapies.

3. What is the current regulatory status of Risdiplam globally?

Approved in the U.S. (August 2020), EU (March 2021), Japan, and several other markets. Ongoing trials and regulatory submissions aim to expand indications and geographic reach.

4. What is the projected market growth for Risdiplam through 2030?

Estimated to reach USD 4.5 billion globally by 2030, driven by broader indications, increased adoption, and pipeline growth.

5. What are the primary barriers to Risdiplam’s market penetration?

Pricing and reimbursement challenges, competition from established therapies, long-term safety data needs, and healthcare infrastructure variability.

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Key Takeaways

• Risdiplam demonstrated robust efficacy and safety in key clinical trials, catalyzing its regulatory approval.
• Market penetration is expanding rapidly, with significant growth forecasted due to its oral route, broader indications, and global regulatory expansion.
• Competitive positioning hinges on efficacy, safety, convenience, and pricing strategies.
• Emerging long-term data and real-world evidence will be critical in cementing its market position.
• Navigating reimbursement challenges remains central to maximizing global access.

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References

[1] Roche. Evrysdi (risdiplam) Prescribing Information. 2022.

[2] FDA. FDA Approves First Oral Treatment for Symptoms of SMA in Adults. 2020.

[3] EMA. Evrysdi (risdiplam) Approved for Treatment of SMA. 2021.

[4] ClinicalTrials.gov. Risdiplam Clinical Trial Records.

[5] MarketResearch.com. SMA Drugs Market Outlook 2022-2030.

[6] IQVIA. Global SMA Market Analysis 2022.

[7] PMID 34794229. Clinical Efficacy and Safety of Risdiplam.

[8] Pharmaceutical Executive. Oral SMA therapies: Transforming Treatment Paradigms. 2021.

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Note: All data reflects publicly available information and clinical trial outcomes as of the latest updates in 2023.