Asset profile
Dipraglurant (ADX48621)
Small molecule
Evidence outlook · program status
Discontinued (2022-06), as a strategic decision by the sponsor
Dipraglurant (ADX48621) is Addex Therapeutics' mGlu5 negative allosteric modulator. Addex's FY2022 20-F carries a risk factor headed 'The discontinuation of our dipraglurant program for PD-LID may have a material adverse effect on our financial position and business' and states the Phase 2b/3 in Parkinson's levodopa-induced dyskinesia was terminated in June 2022 over recruitment. Market-scoped to Parkinson's disease: the FY2025 20-F still describes dipraglurant as the lead compound but 'currently under evaluation for future development in post-stroke/TBI recovery'. The trials below are preserved as the program's evidence history; no evidence signal is assigned to a program the sponsor has stopped.
The registered primary objective was safety and tolerability (met, no major safety concerns); the dyskinesia reduction shown was a prespecified secondary efficacy measure.
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Featured trials
The studies most instrumental to this drug's clinical progression, individually graded on design and result. Pick an indication; Research unlocks the trials, endpoints, key results and grades.
Competitive landscape
60 competitors in this universe: 0 direct rivals (same mechanism and indication), 0 same-class, 60 same-indication; 35 further along in development.
| Drug | Stage | Modality | Mechanism | Evidence signal | Reported efficacygraded featured trials |
|---|---|---|---|---|---|
| Dipraglurant (ADX48621): this drug | Phase 2/3 | Small molecule | mGlu5 | ||
| Amantadine ER (Gocovri / ADS-5102) | Approved | Small molecule | NMDA receptor | ||
| Apomorphine (Apokyn) | Approved | Small molecule | dopamine | ||
| Apomorphine Sublingual Film (Kynmobi) | Approved | Small molecule | dopamine | ||
| Crexont (IPX203) | Approved | Small molecule | dopamine precursor | ||
| Entacapone (Comtess) | Approved | Small molecule | COMT | ||
| Foslevodopa / Foscarbidopa (Vyalev) | Approved | Small molecule | dopamine precursor | ||
| Inbrija (CVT-301) | Approved | Small molecule | dopamine precursor | ||
| Istradefylline (Nourianz) | Approved | Small molecule | adenosine A2A | ||
| Levodopa-Carbidopa Intestinal Gel (Duopa) | Approved | Small molecule | dopamine precursor | ||
| Opicapone (Ongentys) | Approved | Small molecule | COMT, PDE4 | ||
| Parcopa | Approved | Small molecule | dopamine precursor | ||
| Pimavanserin (Nuplazid) | Approved | Small molecule | 5-HT2A/2C receptor, Serotonin 5-HT2A receptor (antagonist / inverse agonist) | ||
| Pramipexole (Sifrol/Mirapex) | Approved | Small molecule | Dopamine D2/D3 receptors | ||
| Pramipexole ER (Mirapex ER) | Approved | Small molecule | Dopamine D2 / D3 receptors | ||
| Rasagiline (Azilect) | Approved | Small molecule | MAO-B |
…and 45 more. Research shows the complete landscape.
Unlock the full comparison
Research adds each competitor's evidence grade and sourced trial results, aligned per race, so you can see who actually has the data.
Upcoming events
No upcoming readouts on record for this asset.
All registered studies
Every ClinicalTrials.gov study of this drug's own program, grouped by indication and phase. Research unlocks the studies themselves: titles, statuses, dates and featured-trial cross-links.