Asset profile
istradefylline · Nourianz
Small molecule
Evidence outlook
Approved: Parkinson's Disease
Regulatory approval supersedes design-level evidence grading; the trials behind approval are preserved below as the drug's evidence history.
track record: Reliable signal
How the evidence outlook works ↗
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
63 competitors in this universe: 1 direct rival (same mechanism and indication), 2 same-class, 60 same-indication.
| Drug | Stage | Modality | Mechanism | Evidence signal | Reported efficacygraded featured trials |
|---|---|---|---|---|---|
| Istradefylline (Nourianz): this drug | Approved | Small molecule | adenosine A2A | ||
| VG081821AC | Phase 2/3 | Small molecule | adenosine A2A | ||
| Ciforadenant | Phase 1/2 | Small molecule | adenosine A2A | ||
| TT-10 | Phase 1/2 | Small molecule | adenosine A2A | ||
| 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 | ||
| 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 |
…and 48 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.
Compare head-to-head
Upcoming events
(2 total)
Estimated primary-completion dates from ClinicalTrials.gov. These are registry estimates, never confirmed readout dates; they can move as trials progress.
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.