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Suvecaltamide

Phase 2

Parkinson Disease | Small molecule | Neurology |Jazz Pharmaceuticals plc|Last Updated: Jan 15, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment169

FDA Designations

No designations recorded

Clinical trial landscape

Suvecaltamide · 1 trial · 2 indications

Phase 2 1
NCT05642442A Study of Suvecaltamide in Adults With Moderate to Severe Residual Tremor in Parkinson's DiseaseParkinson Disease
COMPLETED169 Analytics
PHASE2COMPLETED
A Study of Suvecaltamide in Adults With Moderate to Severe Residual Tremor in Parkinson's Disease
Parkinson DiseaseUnlock trial analytics

Study Endpoints

Primary Endpoints

Change From Baseline to Week 17 on the Essential Tremor Rating Scale (TETRAS) Composite Outcome Score
Baseline to Week 17

The TETRAS composite outcome score is the sum of modified items 1 - 11 of the TETRAS-ADL subscale and modified items 6a, 6b, and 7 of the TETRAS-PS. The TETRAS-ADL subscale is a patient-rated scale administered by a trained interviewer that assesses the impact of tremor on day-to-day functioning, such as eating, drinking, dressing, and other fine motor skills. The TETRAS-PS is a clinical rating scale that quantifies tremor in the head, face voice, limbs and trunk. Items 6a, 6b, and 7 of the TETRAS-PS evaluate the impact of upper limb tremor on performance. Each item from the modified subscales ranges from 0 - 3, with 0 representing normal or slightly abnormal and 3 representing severely abnormal. The sum of the 14 items provides the TETRAS composite outcome score, which ranges from 0 - 42, with higher scores representing more severe tremor. The change from baseline is being reported where the greater the change from baseline indicates improvement in outcome.

Secondary Endpoints

Percentage of Participants Who Improved (≥ 1-point Improvement) From Baseline to Week 17 on the Clinical Global Impression of Severity (CGI-S)
Baseline to Week 17
Change From Baseline to Week 17 on The Essential Tremor Rating Scale, Activities of Daily Living Subscale (TETRAS-ADL)
Baseline to Week 17
Percentage of Participants Who Improved (≥ 1 Point) From Baseline to Week 17 on the Patient's Global Impression of Severity (PGI-S)
Baseline to Week 17
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
PlaceboPLACEBO_COMPARATORParticipants who will receive a matching placebo during the Dose Titration, Optimization Period, and Maintenance Period.
SulvecaltamideEXPERIMENTALParticipants who will receive an optimal dose of suvecaltamide during the Dose Titration, Optimization Period, and Maintenance Period.

Interventions

NameTypeDescription
PlaceboDRUGMatching placebo capsule(s) administered every day (QD) orally. Titration may proceed at a rate of 1 matching placebo capsule per day every 7 days as required for optimal efficacy and tolerability up to a maximum number of 3 matching placebo capsules per day.
SuvecaltamideDRUGSuvecaltamide capsule administered every day (QD) orally. Titration may proceed at a rate of 10 mg suvecaltamide per day every 7 days as required for optimal efficacy and tolerability up to a maximum dose of 30 mg suvecaltamide per day.
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Eligibility Criteria

Age Range40 Years to 85 Years
SexALL
Healthy VolunteersNo
Study Sites37

KEY Inclusion Criteria: * Diagnosis of clinically probable or clinically established Parkinson's disease (PD) meeting the Movement Disorder Society (MDS) 2015 criteria. * Participants must be individually optimized on PD medications for the treatment of other cardinal signs of PD (bradykinesia, rig...

Countries:United StatesGermanyPolandSpain
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Frequently asked questions about Suvecaltamide

What is Suvecaltamide used for in Parkinson Disease?

Suvecaltamide is an investigational small molecule being studied for the treatment of moderate to severe residual tremor in adults with Parkinson Disease. It is a Phase 2 candidate developed by Jazz Pharmaceuticals plc. The drug is not approved and remains in clinical development.

What does Suvecaltamide target?

The specific molecular target of Suvecaltamide has not been disclosed in available information. It is a small molecule being evaluated for its effect on tremor in Parkinson Disease, but its mechanism of action is not publicly detailed.

Who makes Suvecaltamide?

Suvecaltamide is being developed by Jazz Pharmaceuticals plc, a biopharmaceutical company traded on NASDAQ under the ticker JAZZ. The company is conducting clinical research on this drug for Parkinson Disease tremor.

What phase is Suvecaltamide in?

Suvecaltamide is in Phase 2 clinical development. A Phase 2 study has been completed, and the drug is not yet approved by regulatory authorities. It remains investigational for the treatment of tremor in Parkinson Disease.

What clinical trials is Suvecaltamide in?

Suvecaltamide has one completed Phase 2 trial, NCT05642442, which studied the drug in adults with moderate to severe residual tremor in Parkinson Disease. The randomized, double-blind, placebo-controlled trial enrolled 169 participants across the United States, Germany, Poland, and Spain.

Is Suvecaltamide the same as any other drug?

No alternative names for Suvecaltamide have been identified. It is referred to solely by its generic name, Suvecaltamide, in clinical trial records and development documentation.