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Low Dose GT-02287

Phase 2

Parkinson Disease | Small molecule | Neurology |Gain Therapeutics, Inc.|Last Updated: Dec 12, 2025

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials2
Total Enrollment131
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT07280299Efficacy, Safety, Tolerability, and Biomarker Effects of GT-02287 in Early Parkinson's DiseasePHASE2 NOT YET_RECRUITING 111May 30, 2026Jun 30, 2028Dec 12, 2025 -
NCT06732180Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of GT-02287 in Parkinson's DiseasePHASE1 RECRUITING 20Feb 21, 2025Nov 30, 2025May 6, 20257 Australia
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Study Endpoints
Primary Endpoints
Change from Baseline to Week 48 in the sum of the Movement Disorder Society Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Part II score and Part III score [Efficacy]
From baseline to Week 48

Change from Baseline to Week 48 in the sum of the Movement Disorder Society Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Part II score and Part III score assessed in the practically defined OFF state. MDS-UPDRS is a multimodal scale assessing impairment and disability consisting of four parts. Part II assesses motor experiences of daily living (Range 0-52). It contains 13 questions which are to be rated by the patient and/or caregiver. Part III assesses the motor signs of PD and is rated by the investigator (Range 0-132). Part III contains 33 scores based on 18 items. For each question a numeric score is assigned between 0-4, where 0 = Normal, 1 = Slight, 2 = Mild, 3 = Moderate, 4 = Severe. A higher score indicates more severe symptoms of PD.

Incidence, nature, relationship to investigational product (IP), and severity of adverse events (AEs)
From first dose to Day 105
Incidence of clinically significant findings for clinical laboratory evaluations, physical and neurological examinations, body weight , vital signs measurements, 12-lead o 12-lead electrocardiograms (ECGs), Columbia Suicide Severity Rating Scale (C-SSRS)
From first dose to Day 105
Secondary Endpoints
Incidence of Treatment-Emergent Adverse Events [Safety and tolerability]
From baseline to Week 48
Change from Baseline to Week 48 in the MDS-UPDRS Part II score [Effect on motor function]
From baseline to Week 48
Change from Baseline to Week 48 in the MDS-UPDRS Part III score [Effect on motor function]
From baseline to Week 48
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Low Dose GT-02287ACTIVE_COMPARATORGT-02287 400 or 600 mg/day
High Dose GT-02287ACTIVE_COMPARATORGT-02287 800 or 1000 mg/day
PlaceboPLACEBO_COMPARATORMagnesium aluminometasilicate (MAS)
single-arm. All participants receive the active molecule (once daily GT-02287 administration)EXPERIMENTAL -
Interventions
NameTypeDescription
Low Dose GT-02287DRUGSachets containing 400 mg/day or 600 mg/day of active (GT-02287), depending on the participant's body weight. Each daily dose will be prepared as an oral suspension by mixing the content of 1 sachet with the vehicle (supplied in an amber glass bottle) and the requisite volume of tap water.
High Dose GT-02287DRUGSachets containing 800 mg/day or 1000 mg/day of active (GT-02287), depending on the participant's body weight. Each daily dose will be prepared as an oral suspension by mixing the content of 1 sachet with the vehicle (supplied in an amber glass bottle) and the requisite volume of tap water.
PlaceboDRUGSachets containing 420 to 1200 mg of MAS indistinguishable from the active sachets. Each daily dose will be prepared as an oral suspension by mixing the content of 1 sachet with the vehicle (supplied in an amber glass bottle) and the requisite volume of tap water.
GT-02287DRUGDose of 13.5 mg/kg/day (plus/minus 2 mg/kg/day based on body weight) to be administered orally once a day for 90 days. Dosage form: powder in sachet (200 mg of GT-02287 per sachet) for reconstitution with a suspending agent
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Eligibility Criteria
Age Range30 Years — 85 Years
SexALL
Healthy VolunteersNo

Inclusion Criteria: * Able and willing to provide written informed consent and willing to comply with the requirements and restrictions of the study * Willing to undergo PD-related genetic testing and analysis * Any sex, ≥30 and ≤85 years of age * Body mass index of ≥18 and ≤40 kg/m2 and a body wei...

Countries:Australia
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT06732180primaryCompletionDate: changed
LOWMay 26, 2026NCT07280299primaryCompletionDate: changed
LOWMay 24, 2026NCT06732180studyFirstPostDate: changed
LOWMay 24, 2026NCT07280299studyFirstPostDate: changed