API reference

Risdiplam

CAS number
1825352-65-5
Molecular formula
C22H23N7O
Molecular weight
401.5 g/mol
Risdiplam — 2D structure
2D structure (PubChem)

About this molecule

Risdiplam is an orally bioavailable mRNA splicing modifier used for the treatment of spinal muscular atrophy (SMA). It increases systemic SMN protein concentrations by improving the efficiency of SMN2 gene transcription. This mechanism of action is similar to its predecessor [nusinersen], the biggest difference being their route of administration: nusinersen requires intrathecal administration, as does the one-time gene therapy [onasemnogene abeparvovec], whereas risdiplam offers the ease of oral bioavailability. Risdiplam was approved by the FDA in August 2020 for the treatment of spinal muscular atrophy (SMA). Set to be substantially cheaper than other available SMA therapies, risdiplam appears to provide a novel and relatively accessible treatment option for patients with SMA regardless of severity or type.

Source: DrugBank, via PubChem.

Identifiers

IUPAC name
7-(4,7-diazaspiro[2.5]octan-7-yl)-2-(2,8-dimethylimidazo[1,2-b]pyridazin-6-yl)pyrido[1,2-a]pyrimidin-4-one
InChIKey
ASKZRYGFUPSJPN-UHFFFAOYSA-N
SMILES
CC1=CC(=NN2C1=NC(=C2)C)C3=CC(=O)N4C=C(C=CC4=N3)N5CCNC6(C5)CC6
PubChem CID
118513932

Also known as

Risdiplam · Evrysdi · Risdiplamum · 841-610-4 · Risd · Evrysdi (TN) · Risdiplam (Standard) · Risdiplam (JAN/USAN/INN)

Chemical data on this page is drawn from PubChem (National Library of Medicine) and is provided for identification only. Hanpars does not hold stock of every substance listed; availability, grade, documentation and regulatory status are confirmed per enquiry.

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