Risdiplam 750micrograms/ml oral solution sugar free
Requires a prescription from a doctor or prescriber
Risdiplam is an orally bioavailable mRNA splicing modifier used for the treatment of spinal muscular atrophy (SMA).[L12615] It increases systemic SMN protein concentrations by improving the efficiency of <em>SMN2</em> gene transcription.
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Safety monitoring data
Yellow Card reports
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Suspected adverse reactions reported for Risdiplam
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Data from the MHRA Yellow Card scheme. A reported reaction does not necessarily mean the medicine caused it. Contains public sector information licensed under the Open Government Licence v3.0.
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2 branded products available
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Evrysdi 0.75mg/ml oral solution
Therapeutically similar medicines
Similarity is based on WHO Anatomical Therapeutic Chemical (ATC) classification and on a factual NHS dm+d therapeutic-grouping code prefix. Source data: NHS dm+d via TRUD (OGL v3.0), WHO ATC/DDD Index.
NHS prescribing volume and spending trends
Guidelines from the National Institute for Health and Care Excellence
NICE clinical guidance(2)
Nusinersen and risdiplam for treating spinal muscular atrophy (TA1162)
Onasemnogene abeparvovec for treating presymptomatic spinal muscular atrophy (HST24)
Source: National Institute for Health and Care Excellence (NICE). Contains public sector information licensed under the Open Government Licence v3.0.
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Codes for healthcare professionals and prescribing systems
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NHS UK identifiers
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SNOMED CT and dm+d codes from NHS TRUD (Technology Reference data Update Distribution), licensed under the Open Government Licence v3.0. ATC codes from the WHO Collaborating Centre for Drug Statistics Methodology (whocc.no).
Active and completed clinical studies from ClinicalTrials.gov
Source: ClinicalTrials.gov, a database of the U.S. National Library of Medicine (NLM), National Institutes of Health (NIH). Data accessed via ClinicalTrials.gov API v2. Trial information is provided for research purposes and does not constitute medical advice.
Academic studies and reviews for this medicine's active substance
Showing the 50 most relevant studies.
Reviews & meta-analyses: 18 · Randomised trials: 4 · 2018–2026
Showing the 50 most relevant studies, sorted by most relevant.
Eugenio Mercuri, Nicolas Deconinck, Elena S Mazzone, et al.
The Lancet Neurology, 2022
Judit Erdos, Claudia Wild
European Journal of Paediatric Neurology, 2022
Carlos Pascual‐Morena, Vicente Martínez‐Vizcaíno, Iván Cavero‐Redondo, et al.
Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy, 2023
Abstract This systematic review and meta‐analysis aimed to assess the efficacy and safety of risdiplam on motor and respiratory function in spinal muscular atrophy (SMA). We systematically searched Medline, Scopus, Web of Science, and the Cochrane Library from inception to March 2023. We included pre‐post studies that determined the effect of risdiplam on the Children's Hospital of Philadelphia Infant Test of Neuromuscular Disorders (CHOP‐INTEND), the 32‐item Motor Function Measure (MFM32), the Revised Upper Limb Module (RULM), the Hammersmith Functional Motor Scale – Expanded (HFMSE), respiratory function, and the proportion of risdiplam‐related adverse events in a population with SMA (phenotypes 1 and 2/3). Meta‐analyses were also performed where possible. Eleven studies were included. After 12 months of treatment, 57% of participants with SMA1 achieved a CHOP‐INTEND score ≥ 40 points, and more than half were able to feed orally and had head control. In SMA2/3, MFM32, RULM, and HFMSE increased by 2.09 (1.17, 3.01), 1.73 (1.25, 2.20), and 1.00 (0.40, 1.59) points, respectively. Efficacy on respiratory function in SMA2/3 was inconsistent. Finally, 16% of participants experienced adverse events, but serious adverse events could not be quantified due to a lack of cases. The limited available evidence suggests that risdiplam is an effective and safe drug for the treatment of SMA. In addition, long‐term clinical benefit may be partly determined by the stage of disease at which treatment is initiated.
Abstract licence: CC BY-NC 4.0
Yue Qiao, Yuewei Chi, Jian Gu, et al.
Brain Sciences, 2023
Objective: We performed a systematic review and meta-analysis of the efficacy and safety of nusinersen and risdiplam in the treatment of spinal muscular disease (SMA). Methods: We screened the literature published in Pubmed, Web of Science, Embase, and Cochrane before July 2023 to conduct randomized controlled trials to test the treatment of SMA patients with nusinersen and risdiplam. The data were analyzed using Review Manager 5.4 software and Stata version 15.0 software. Results: A total of six randomized controlled trials were included, involving 728 SMA patients, to synthesize evidence. It is reported that nusinersen treatment was beneficial for increasing the score of the Hammersmith Functional Motor Scale—Expanded (HFMSE) (WMD: 4.90; 95% CI: 3.17, 6.63; p < 0.00001), Revised Upper Limb Module (RULM) (WMD: 3.70; 95% CI: 3.30, 4.10; p < 0.00001), and Hammersmith Infant Neurological Evaluation Section 2 (HINE-2) (WMD: 5.21; 95% CI: 4.83, 5.60; p < 0.00001). In addition, the risdiplam treatment group also showed statistically significant improvements in the HFMSE score (WMD:0.87; 95% CI: 0.05, 1.68; p = 0.04), the 32-item Motor Function Measure (MFM32) (WMD:1.48; 95% CI: 0.58, 2.38; p = 0.001), and (WMD: 1.29; 95% CI: 0.57, 2.01; p = 0.0005). Nusinersen and risdiplam did not cause a statistically significant increase in the RULM score for adverse events (OR: 0.93; 95% CI: 0.51, 1.7; p = 0.82) and for severe adverse events (OR: 0.77; 95% CI: 0.47, 1.27; p = 0.31). Conclusion: Our analysis found that nusinersen and risdiplam treatment showed clinically meaningful improvement in motor function and a similar incidence rate of adverse events compared with the placebo. Further research should be carried out to provide a direct comparison between the two drugs in terms of safety and efficacy.
Abstract licence: CC BY 4.0
2025
Bo-nian Chen, Yuanli Gong, Tengteng Zhou
Journal of the College of Physicians and Surgeons--Pakistan : JCPSP, 2024
Giovanni Baranello, Basil T. Darras, John W. Day, et al.
New England Journal of Medicine, 2021
Basil T. Darras, Riccardo Masson, Maria Mazurkiewicz-Bełdzińska, et al.
New England Journal of Medicine, 2021
Hasane Ratni, Martin Ebeling, John Baird, et al.
Journal of Medicinal Chemistry, 2018
E. Mercuri, G. Baranello, O. Boespflug-Tanguy, et al.
European Journal of Neurology, 2022
Spinal muscular atrophy (SMA) is caused by reduced levels of survival of motor neuron (SMN) protein due to deletions and/or mutations in the SMN1 gene. Risdiplam is an orally administered molecule that modifies SMN2 pre‐mRNA splicing to increase functional SMN protein.
Abstract licence: CC BY-NC-ND 4.0
Sources: aggregated from Europe PMC (EMBL-EBI), OpenAlex, Crossref, PubMed and other open scholarly databases. Retracted articles are excluded. Study information is provided for research purposes and does not constitute medical advice.
Pharmacology and chemical data from DrugBank
Key facts
Drug status
Approved
Major interactions
None known
Half-life
50 hours
Mechanism
Spinal muscular atrophy (SMA) is a severe and progressive congenital neuromuscul…
Food interactions
2 warnings
Human targets
None mapped
Data: DrugBank · CC BY-NC 4.0
Pharmacokinetics at a glance
Absorption
1-4 hours
[A192759][L15336]
…
Half-life
50 hours
[L15336]
Protein binding
89%
[L15336]
Volume of distribution
6.3 L/kg
[A192750]
…
Metabolism
83%
[L15336]
…
Elimination
18mg
[L15336]
…
Clearance
6.3 L/kg
[L15336]
Pharmacokinetic data: DrugBank · CC BY-NC 4.0
Risdiplam was approved by the FDA in August 2020 for the treatment of spinal muscular atrophy (SMA).[L15331][L15336] Set to be substantially cheaper than other available SMA therapies,[L15351] risdiplam appears to provide a novel and relatively accessible treatment option for patients with SMA regardless of severity or type.
[L41935]
Known interactions with other medicines. Always consult a healthcare professional.
Showing 22 of 22 interactions
[L15336]
Risdiplam is an mRNA splicing modifier for SMN2 that increases the inclusion of exon 7 during splicing, which ultimately increases the amount of functional SMN protein produced by SMN2.[A192759] It does so by binding to two sites in SMN2 pre-mRNA: the 5' splice site (5'ss) of intron 7 and the exonic splicing enhancer 2 (ESE2) of exon 7.[A216871]
How the body processes this drug — absorption, distribution, metabolism, and elimination
[A192759][L15336]
Following once-daily administration with a morning meal (or after breastfeeding), risdiplam reaches steady-state in approximately 7-14 days.
[L15336]
The pharmacokinetics of risdiplam were found to be approximately linear between all studied dosages in patients with SMA.
[L15336]
[L15336]
[L15336]
[A192750]
The apparent volume of distribution at steady-state is 6.3 L/kg.
[L15336]
[L15336]
Parent drug comprises approximately 83% of circulating drug material.
[L15336]
A pharmacologically-inactive metabolite, M1, has been identified as the major circulating metabolite - this M1 metabolite has been observed in vitro to inhibit MATE1 and MATE2-K transporters, similar to the parent drug.
[L15336]
[L15336]
Unchanged parent drug comprised 14% of the dose excreted in feces and 8% of the dose excreted in urine.
[L15336]
[L15336]
Enzymes involved in drug metabolism — important for understanding drug interactions
Proteins that transport this drug across cell membranes
PMID:16330770 PMID:17509534
Plays a physiological role in the excretion of cationic compounds including endogenous metabolites, drugs, toxins through the kidney and liver, into urine and bile respectively .
PMID:16330770 PMID:17495125 PMID:17509534 PMID:17582384 PMID:18305230 PMID:19158817 PMID:21128598 PMID:24961373
Mediates the efflux of endogenous compounds such as creatinine, vitamin B1/thiamine, agmatine and estrone-3-sulfate .
PMID:16330770 PMID:17495125 PMID:17509534 PMID:17582384 PMID:18305230 PMID:19158817 PMID:21128598 PMID:24961373
May also contribute to regulate the transport of cationic compounds in testis across the blood-testis-barrier (Probable)
Plays a physiological role in the excretion of drugs, toxins and endogenous metabolites through the kidney
PMID:2897240 PMID:35970996 PMID:8898203 PMID:9038218 PMID:35507548
Catalyzes the flop of phospholipids from the cytoplasmic to the exoplasmic leaflet of the apical membrane. Participates mainly to the flop of phosphatidylcholine, phosphatidylethanolamine, beta-D-glucosylceramides and sphingomyelins .
PMID:8898203
Energy-dependent efflux pump responsible for decreased drug accumulation in multidrug-resistant cells PMID:2897240 PMID:35970996 PMID:9038218
PMID:11306452 PMID:12958161 PMID:19506252 PMID:20705604 PMID:28554189 PMID:30405239 PMID:31003562
Involved in porphyrin homeostasis, mediating the export of protoporphyrin IX (PPIX) from both mitochondria to cytosol and cytosol to extracellular space, it also functions in the cellular export of heme .
PMID:20705604 PMID:23189181
Also mediates the efflux of sphingosine-1-P from cells .
PMID:20110355
Acts as a urate exporter functioning in both renal and extrarenal urate excretion .
PMID:19506252 PMID:20368174 PMID:22132962 PMID:31003562 PMID:36749388
In kidney, it also functions as a physiological exporter of the uremic toxin indoxyl sulfate (By similarity). Also involved in the excretion of steroids like estrone 3-sulfate/E1S, 3beta-sulfooxy-androst-5-en-17-one/DHEAS, and other sulfate conjugates .
PMID:12682043 PMID:28554189 PMID:30405239
Mediates the secretion of the riboflavin and biotin vitamins into milk (By similarity). Extrudes pheophorbide a, a phototoxic porphyrin catabolite of chlorophyll, reducing its bioavailability (By similarity).
Plays an important role in the exclusion of xenobiotics from the brain (Probable). It confers to cells a resistance to multiple drugs and other xenobiotics including mitoxantrone, pheophorbide, camptothecin, methotrexate, azidothymidine, and the anthracyclines daunorubicin and doxorubicin, through the control of their efflux .
PMID:11306452 PMID:12477054 PMID:15670731 PMID:18056989 PMID:31254042
In placenta, it limits the penetration of drugs from the maternal plasma into the fetus (By similarity). May play a role in early stem cell self-renewal by blocking differentiation (By similarity).
In inflammatory macrophages, exports itaconate from the cytosol to the extracellular compartment and limits the activation of TFEB-dependent lysosome biogenesis involved in antibacterial innate immune response
Proteins that carry this drug through the body
PMID:19021548
Major calcium and magnesium transporter in plasma, binds approximately 45% of circulating calcium and magnesium in plasma (By similarity).
Potentially has more than two calcium-binding sites and might additionally bind calcium in a non-specific manner (By similarity). The shared binding site between zinc and calcium at residue Asp-273 suggests a crosstalk between zinc and calcium transport in the blood (By similarity). The rank order of affinity is zinc > calcium > magnesium (By similarity).
Binds to the bacterial siderophore enterobactin and inhibits enterobactin-mediated iron uptake of E.coli from ferric transferrin, and may thereby limit the utilization of iron and growth of enteric bacteria such as E.coli .
PMID:6234017
Does not prevent iron uptake by the bacterial siderophore aerobactin PMID:6234017
ATC M09AX10
Chemical identifiers
CAS, UNII, InChI Key and database cross-references
Show
Chemical identifiers
CAS, UNII, InChI Key and database cross-references
Linked compound data from DrugBank Open Data (CC BY-NC 4.0)
Risdiplam
Additional database identifiers
Drugs Product Database (DPD)
23584
ChemSpider
67886354
HUGO Gene Nomenclature Committee (HGNC)
HGNC:3769
GeneCards
FMO1
GenBank Gene Database
M64082
GenBank Protein Database
182671
UniProt Accession
FMO1_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:3771
GeneCards
FMO3
GenBank Gene Database
M83772
GenBank Protein Database
188631
UniProt Accession
FMO3_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:2595
GeneCards
CYP1A1
GenBank Gene Database
K03191
GenBank Protein Database
181276
Guide to Pharmacology
1318
UniProt Accession
CP1A1_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:2634
GeneCards
CYP2J2
GenBank Gene Database
U37143
GenBank Protein Database
18254513
Guide to Pharmacology
1332
UniProt Accession
CP2J2_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:2637
GenAtlas
CYP3A4
GeneCards
CYP3A4
GenBank Gene Database
M18907
Guide to Pharmacology
1337
UniProt Accession
CP3A4_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:2640
GeneCards
CYP3A7
GenBank Gene Database
D00408
GenBank Protein Database
220149
UniProt Accession
CP3A7_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:2637
GenAtlas
CYP3A4
GeneCards
CYP3A4
GenBank Gene Database
M18907
Guide to Pharmacology
1337
UniProt Accession
CP3A4_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:17450
GeneCards
CYP3A43
GenBank Gene Database
AF319634
GenBank Protein Database
12642642
UniProt Accession
CP343_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:2638
GenAtlas
CYP3A5
GeneCards
CYP3A5
GenBank Gene Database
J04813
GenBank Protein Database
181346
Guide to Pharmacology
1338
UniProt Accession
CP3A5_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:2640
GeneCards
CYP3A7
GenBank Gene Database
D00408
GenBank Protein Database
220149
UniProt Accession
CP3A7_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:399
GenAtlas
ALB
GeneCards
ALB
GenBank Gene Database
V00494
GenBank Protein Database
28590
UniProt Accession
ALBU_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:25588
GeneCards
SLC47A1
GenBank Gene Database
AK001709
GenBank Protein Database
7023138
Guide to Pharmacology
1216
UniProt Accession
S47A1_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:26439
GeneCards
SLC47A2
Guide to Pharmacology
1217
UniProt Accession
S47A2_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:40
GenAtlas
ABCB1
GeneCards
ABCB1
GenBank Gene Database
M14758
GenBank Protein Database
307180
Guide to Pharmacology
768
UniProt Accession
MDR1_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:74
GenAtlas
ABCG2
GeneCards
ABCG2
GenBank Gene Database
AF103796
GenBank Protein Database
4185796
Guide to Pharmacology
792
UniProt Accession
ABCG2_HUMAN
DrugBank citations
If you use DrugBank data in your research, please cite:
- DrugBank 6.02024Recommended citationKnox C., Wilson M., Klinger C.M., et alDrugBank 6.0: the DrugBank Knowledgebase for 2024Nucleic Acids Res. 2024 Jan 552(D1):D1265-D1275
- DrugBank 5.02018Wishart D.S., Feunang Y.D., Guo A.C., et alDrugBank 5.0: a major update to the DrugBank database for 2018Nucleic Acids Res. 2017 Nov 846(D1):D1074-D1082
- DrugBank 4.02014Law V., Knox C., Djoumbou Y., et alDrugBank 4.0: shedding new light on drug metabolismNucleic Acids Res. 2014 Jan 142(1):D1091-7
- DrugBank 3.02011Knox C., Law V., Jewison T., et alDrugBank 3.0: a comprehensive resource for 'omics' research on drugsNucleic Acids Res. 2011 Jan39(Database issue):D1035-41
- DrugBank 2.02008Wishart D.S., Knox C., Guo A.C., et alDrugBank: a knowledgebase for drugs, drug actions and drug targets.Nucleic Acids Research2008 Jan36(Database issue):D901-6
- DrugBank 1.02006Wishart D.S., Knox C., Guo A.C., et alDrugBank: a comprehensive resource for in silico drug discovery and exploration.Nucleic Acids Research2006 Jan 134(Database issue):D668-72