Small Molecule · CVL-751

Tavapadon

Oral, once-daily, highly selective dopamine D1/D5 receptor partial agonist with a non-catechol chemical structure, in development for Parkinson's disease as both monotherapy in early PD and adjunctive therapy to levodopa in advanced PD with motor fluctuations.

Also known as: CVL-751, PF-06649751, tavapadon, 1643489-24-0

Key facts

Modality
Small molecule
Chemical class
pyrimidine-2,4-dione, diaryl ether, trifluoromethylpyridine
Chemistry
Single enantiomer
Mechanism
D1 receptor Partial agonist
Highest phase
Filed (NDA)
Lead indication
Parkinson's disease
Trials
4 tracked · 416 sites
Next catalyst
Sep 2026 (third-party estimate) — Regulatory (Parkinson's disease)

Mechanism of action#

Highly selective, oral dopamine D1/D5 receptor partial agonist. Partial agonism (rather than full agonism) at D1/D5 is intended to deliver motor benefit while limiting dyskinesia and the tachyphylaxis seen with full D1 agonists. Non-catechol scaffold with biased Gs-coupled signaling and minimal D1 receptor internalization. No clinically meaningful activity at D2-like receptors (D2/D3/D4 Ki >=4,870 nM).

1 nM10 nM100 nMD1 receptorD1 receptor — Partial agonist — Ki 9 nMKi 9 nMD5 receptorD5 receptor — Partial agonist — Ki 13 nMKi 13 nM
Binding affinity on a log scale — further left is more potent. Values from the sourced literature (see table).
TargetActionAffinity
D1 receptorprimaryDRD1Partial agonistKi 9 nM
D5 receptorDRD5Partial agonistKi 13 nM

Formulations#

FormulationRouteRegimenPharmacokinetics
Tavapadon oral tablet
5-15 mg once daily (Phase 3 TEMPO program: fixed 5 mg or 15 mg in TEMPO-1; flexible 5-15 mg in TEMPO-2/TEMPO-3)
OralOnce dailyt½ 24 h · Tmax 3.5 h

Development timeline#

Jul 24Jan 25Jul 25Jan 26Jul 26TodayPhase 39 Dec 2024 — readout (met) — TEMPO-2 (flexible-dose monotherapy, early PD) met primary endpoint: -9.1 point treatment difference on MDS-UPDRS II+III (p<0.0001).26 Sept 2024 — readout (met) — TEMPO-1 (fixed-dose monotherapy, early PD) met primary endpoint at both 5 mg and 15 mg (p<0.0001 vs placebo).1 Aug 2024 — Acquisition — AbbVie completes $8.7B acquisition of Cerevel Therapeutics18 Apr 2024 — readout (met) — TEMPO-3 (adjunctive to levodopa, advanced PD) met primary endpoint: +1.1 h additional ON time without troublesome dyskinesia vs placebo (p<0.0001).Filed (NDA)1 Sept 2026 — upcoming — FDA decision on tavapadon NDA slipped past 1H 2026; trackers now expect September 202626 Sept 2025 — readout — AbbVie submitted the tavapadon NDA to the U.S. FDA for early and advanced Parkinson's disease.
Phase change Readout Event UpcomingHover a marker for details.
Filed (NDA)Sept 2025 – Sept 2026
  1. UpcomingFDA decision on tavapadon NDA slipped past 1H 2026; trackers now expect September 2026
  2. AbbVie submitted the tavapadon NDA to the U.S. FDA for early and advanced Parkinson's disease.
Phase 3Apr 2024 – Dec 2024
  1. metTEMPO-2 (flexible-dose monotherapy, early PD) met primary endpoint: -9.1 point treatment difference on MDS-UPDRS II+III (p<0.0001).
  2. metTEMPO-1 (fixed-dose monotherapy, early PD) met primary endpoint at both 5 mg and 15 mg (p<0.0001 vs placebo).
  3. AcquisitionAbbVie completes $8.7B acquisition of Cerevel Therapeutics
  4. metTEMPO-3 (adjunctive to levodopa, advanced PD) met primary endpoint: +1.1 h additional ON time without troublesome dyskinesia vs placebo (p<0.0001).

Tavapadon for Parkinson's disease#

Filed (NDA)ActiveParkinson's disease indication →

AbbVie submitted a New Drug Application to the U.S. FDA on 2025-09-26 for tavapadon across the Parkinson's disease spectrum: monotherapy in early PD and adjunctive therapy to levodopa in advanced PD with motor fluctuations. Filing is supported by the Phase 3 TEMPO program (TEMPO-1, TEMPO-2 monotherapy; TEMPO-3 adjunctive; TEMPO-4 open-label extension), all of which met their endpoints. No public Fast Track/Breakthrough/orphan designation identified, so designations left empty.

Readouts

  • Sep 2026 (third-party estimate)DelayedRegulatory

    FDA decision on tavapadon NDA slipped past 1H 2026; trackers now expect September 2026

  • 2025-09-26ReportedRegulatory

    AbbVie submitted the tavapadon NDA to the U.S. FDA for early and advanced Parkinson's disease.

  • 2024-12-09ReportedTopline datametNCT04223193

    TEMPO-2 (flexible-dose monotherapy, early PD) met primary endpoint: -9.1 point treatment difference on MDS-UPDRS II+III (p<0.0001).

  • 2024-09-26ReportedTopline datametNCT04201093

    TEMPO-1 (fixed-dose monotherapy, early PD) met primary endpoint at both 5 mg and 15 mg (p<0.0001 vs placebo).

  • 2024-04-18ReportedTopline datametNCT04542499

    TEMPO-3 (adjunctive to levodopa, advanced PD) met primary endpoint: +1.1 h additional ON time without troublesome dyskinesia vs placebo (p<0.0001).

Clinical trials#

NCT04760769TEMPO-4Phase 3Completedn=992

58-Week Open-label Trial of Tavapadon in Parkinson's Disease (TEMPO-4)

Started Feb 2021· Primary completion Dec 2025· 140 sites across 14 countries

United StatesPolandSpainItaly

NCT04542499TEMPO-3Phase 3Completedn=507

A Phase 3, Double-Blind, Randomized, Placebo-Controlled, Parallel-Group, Flexible-Dose, 27-Week Trial to Evaluate the Efficacy, Safety, and Tolerability of Tavapadon as Adjunctive Therapy for Parkinson's Disease in Levodopa-Treated Adults With Motor Fluctuations (TEMPO-3)

Started Sept 2020· Primary completion Jan 2024· 146 sites across 14 countries

United StatesPolandGermanySpain

metprimaryChange from baseline in total ON time without troublesome dyskinesia at Week 26 (Hauser diary) — +1.1 h vs placebo (tavapadon +1.7 h vs placebo +0.6 h) (<0.0001)

Adjunctive to levodopa in advanced PD with motor fluctuations, tavapadon (5-15 mg QD) increased total ON time without troublesome dyskinesia by a least-squares mean 1.721 h vs 0.619 h for placebo (treatment difference ~1.1 h, p<0.0001).

NCT04223193TEMPO-2Phase 3Completedn=304

A Phase 3, Double-Blind, Randomized, Placebo-Controlled, Parallel-Group, Flexible-Dose, 27-Week Trial to Evaluate the Efficacy, Safety, and Tolerability of Tavapadon in Early Parkinson's Disease (TEMPO-2)

Started Jan 2020· Primary completion Oct 2024· 53 sites across 13 countries

United StatesPolandItalyGermany

metprimaryChange from baseline in MDS-UPDRS Parts II + III combined score at Week 26 — -9.1 points (95% CI -11.7 to -6.5) (<0.0001)

Flexible-dose (5-15 mg QD) monotherapy met the primary endpoint: tavapadon -10.3 vs placebo -1.2, treatment difference -9.1 points (p<0.0001).

NCT04201093TEMPO-1Phase 3Completedn=529

A Phase 3, Double-Blind, Randomized, Placebo-Controlled, Parallel-Group, 27-Week Trial to Evaluate the Efficacy, Safety, and Tolerability of Two Fixed Doses of Tavapadon in Early Parkinson's Disease (TEMPO-1)

Started Dec 2019· Primary completion Jun 2024· 77 sites across 12 countries

United StatesSpainBulgariaGermany

metprimaryChange from baseline in MDS-UPDRS Parts II + III combined score at Week 26 (<0.0001)

Both fixed doses met the primary endpoint: placebo +1.8, tavapadon 5 mg -9.7, tavapadon 15 mg -10.2 (p<0.0001 each dose vs placebo). Fixed-dose monotherapy in early PD.

Sources#

  1. AbbVie Announces Positive Topline Results for the Phase 3 TEMPO-2 Trial Evaluating Tavapadon as a Monotherapy for Parkinson's Disease — AbbVie
  2. AbbVie Announces Positive Topline Results from Phase 3 TEMPO-1 Trial Evaluating Tavapadon as a Monotherapy for Parkinson's Disease — AbbVie
  3. AbbVie Completes Acquisition of Cerevel Therapeutics — AbbVie
  4. AbbVie Submits New Drug Application to U.S. FDA for Tavapadon for the Treatment of Parkinson's Disease — AbbVie
  5. Cerevel Therapeutics Announces Positive Topline Results for Tavapadon in Phase 3 Adjunctive Trial for People Living with Parkinson's Disease (TEMPO-3) — Cerevel Therapeutics / AbbVie
  6. FDA Decisions Expected: September 2026 — Prime Therapeutics
  7. Fixed-Dose Trial in Early Parkinson's Disease (PD) — TEMPO-1 — ClinicalTrials.gov
  8. Flexible-Dose Trial in Early Parkinson's Disease (PD) (TEMPO-2) — ClinicalTrials.gov
  9. Flexible-Dose, Adjunctive Therapy Trial in Adults With Parkinson's Disease With Motor Fluctuations (TEMPO-3) — ClinicalTrials.gov
  10. Open-label Trial in Parkinson's Disease (PD) (TEMPO-4) — ClinicalTrials.gov
Show all 12 sources
  1. Rationale and Development of Tavapadon, a D1/D5-Selective Partial Dopamine Agonist for the Treatment of Parkinson's Disease — PMC / peer-reviewed journal
  2. Tavapadon - Wikipedia — Wikipedia (citing primary receptor-pharmacology literature)