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ulixacaltamide

Phase 3

Essential Tremor | Small molecule | Neurology |Praxis Precision Medicines, Inc.|Last Updated: Jul 16, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment1,000

FDA Designations

BREAKTHROUGH_THERAPY

Clinical trial landscape

ulixacaltamide · 1 trial · 1 indication

Phase 3 1
NCT06087276Essential 3 - Decentralized, Phase 3 Study Evaluating the Safety and Efficacy of Ulixacaltamide in Essential Tremor (ET)Essential Tremor
ACTIVE NOT_RECRUITING1,000 Analytics
PHASE3ACTIVE NOT_RECRUITING
Essential 3 - Decentralized, Phase 3 Study Evaluating the Safety and Efficacy of Ulixacaltamide in Essential Tremor (ET)
Essential TremorUnlock trial analytics

Study Endpoints

Primary Endpoints

Parallel Design: Change from Baseline (CFB) to Week 8 (Day 56) on mADL11 score
8 weeks (56 days)

Modified Activities of Daily Living 11 (mADL11) is a composite sum of items 1 to 11 of the TETRAS-ADL subscale. The impact to each function is rated on a 5-point Likert scale from 0 to 4. Before calculating the total score, a scoring adjustment is applied to each item score. The modified score is calculated as the sum of all 11 items (with scoring adjustments) and ranges from 0 to 33 where larger values represent increased direct tremor impact to activities of daily living.

Randomized Withdrawal: The proportion of participants that maintain response, as defined by change in mADL11 score, following randomized withdrawal
12 weeks (84 days)

Modified Activities of Daily Living 11 (mADL11) is a composite sum of items 1 to 11 of the TETRAS-ADL subscale. The impact to each function is rated on a 5-point Likert scale from 0 to 4. Before calculating the total score, a scoring adjustment is applied to each item score. The modified score is calculated as the sum of all 11 items (with scoring adjustments) and ranges from 0 to 33 where larger values represent increased direct tremor impact to activities of daily living. Change in patient response will compare the proportion of patients in the ulixacaltamide and placebo arm who maintain response based on RW baseline established at Week 8 (Day 56) following randomized withdrawal.

Long-term Safety Study: Number of participants with Adverse Events (AE) and their severity.
Up to 3 years

The number of participants with Adverse Events (AE) will be reported by preferred term

Secondary Endpoints

Parallel Design: Rate of Disease improvement as Measured by mADL11
12 weeks (84 days)
Parallel Design: PGI-C Change at Week 8 (Day 56)
8 weeks (56 Days)
Parallel Design: CGI-S Change from Baseline to Week 8 (Day 56)
8 weeks (56 Days)
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Parallel Design: ulixacaltamide armEXPERIMENTALDouble-blind Part: Oral dosing, once daily in the morning with titration over 14 days to 60 mg ulixacaltamide: 7 days of 20 mg, 7 days of 40 mg, 70 days of 60 mg
Parallel Design: placebo armPLACEBO_COMPARATORDouble-blind Part: Oral dosing, once daily in the morning: 84 days of placebo
Randomized WithdrawalEXPERIMENTALDouble-blind Part: Oral dosing, once daily in the morning with titration over 14 days to 60 mg ulixacaltamide: 7 days of 20 mg, 7 days of 40 mg, 42 days of 60 mg Randomized Withdrawal Part: Following double-blind part: 1:1 randomization to placebo or 60 mg ulixacaltamide for 28 days
Long-term Safety Study: Essential1 rolloversEXPERIMENTALOpen-label Part: Oral dosing, once daily in the morning up to 3 years 60 mg ulixacaltamide
Long-term Safety Study: Parallel Design and Randomized Withdrawal rolloversEXPERIMENTALOpen-label Part for patients previously on placebo: Oral dosing, once daily in the morning with titration over 14 days to 60 mg ulixacaltamide: 7 days of 20 mg, 7 days of 40 mg, up to 3 years 60 mg ulixacaltamide Open-label Part for patients previously on 60 mg ulixacaltamide: Oral dosing, once daily in the morning up to 3 years 60 mg ulixacaltamide
Long-term Safety Study: Direct Enrollment to LTSS StudyEXPERIMENTALOral dosing, once daily in the morning with titration over 14 days to 60 mg ulixacaltamide: 7 days of 20 mg, 7 days of 40 mg, up to 3 years 60 mg ulixacaltamide

Interventions

NameTypeDescription
60 mg ulixacaltamideDRUGOnce daily oral treatment with titration
PlaceboDRUGOnce daily oral treatment
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Eligibility Criteria

Age Range18 Years to 85 Years
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria for Study 1 PD and Study 2 RW: 1. Has a body mass index (BMI) at Screening of ≥18 kg/m2. 2. Has a clinical diagnosis of ET confirmed during screening and characterized by postural and action tremor. 3. If currently receiving medication prescribed for ET, must be on ≤1 medications...

Countries:United States
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Recent Changes (Last 90 Days)

MEDIUMJul 17, 2026NCT06087276Status: ENROLLING_BY_INVITATION → ACTIVE_NOT_RECRUITING
MEDIUMJul 17, 2026NCT06087276Status: ENROLLING_BY_INVITATION → ACTIVE_NOT_RECRUITING
MEDIUMJul 17, 2026NCT06087276Status: ENROLLING_BY_INVITATION → ACTIVE_NOT_RECRUITING

Frequently asked questions about ulixacaltamide

What is ulixacaltamide used for?

Ulixacaltamide is an investigational small molecule being developed for the treatment of Essential Tremor, a neurological condition characterized by involuntary shaking. It is currently in Phase 3 clinical development and has not yet been approved by the FDA. The drug is being studied in a large, placebo-controlled trial to evaluate its safety and efficacy.

Who is developing ulixacaltamide?

Ulixacaltamide is being developed by Praxis Precision Medicines, Inc., a biopharmaceutical company traded on the NASDAQ under the ticker symbol PRAX. The company is conducting a Phase 3 clinical trial of the drug for Essential Tremor. Praxis has received Breakthrough Therapy designation from the FDA for ulixacaltamide, which is intended to expedite its development and review.

What phase is ulixacaltamide in?

Ulixacaltamide is currently in Phase 3 clinical development for Essential Tremor. It is an investigational drug, meaning it has not yet been approved by the FDA for commercial use. The ongoing Phase 3 trial is active but not recruiting participants, and the drug has received Breakthrough Therapy designation from the FDA.

What clinical trials is ulixacaltamide in?

Ulixacaltamide is being evaluated in a Phase 3 clinical trial with the identifier NCT06087276, titled 'Essential 3 - Decentralized, Phase 3 Study Evaluating the Safety and Efficacy of Ulixacaltamide in Essential Tremor (ET)'. This randomized, double-blind, placebo-controlled trial is enrolling approximately 1,000 participants aged 18 years and older in the United States.

Is ulixacaltamide FDA approved?

No, ulixacaltamide is not FDA approved. It is an investigational drug currently in Phase 3 clinical development for Essential Tremor. The FDA has granted it Breakthrough Therapy designation, which is a status given to drugs that may offer substantial improvement over existing therapies for serious conditions. Approval will depend on the results of ongoing clinical trials.