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Confirmatory Study 3 of KPS-0373 in Patients With Spinocerebellar Degeneration

Phase III Confirmatory Study 3 of KPS-0373 in Patients With Spinocerebellar Degeneration

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07040137
Enrollment
142
Registered
2025-06-27
Start date
2025-08-15
Completion date
2027-03-31
Last updated
2026-09-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Spinocerebellar Degeneration

Brief summary

This is a multicenter, randomized, double-blind, placebo-controlled, parallel-group, phase III study to evaluate the efficacy and safety of KPS-0373 given once daily after breakfast in 142 patients with spinocerebellar degeneration . This study consists of the 4-week screening period, 24-week treatment period, and 4-week follow-up period.

Interventions

Oral administration

DRUGPlacebo

Oral administration

Sponsors

Kissei Pharmaceutical Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Japanese SCD patients with mild to moderate ataxia

Exclusion criteria

* Patients with secondary ataxia * Patients with clinically significant hepatic, renal, or cardiovascular dysfunction

Design outcomes

Primary

MeasureTime frameDescription
Change from baseline in SARA total score at 24 weeks of treatment periodUp to 24 weeksThe SARA is a scale that assesses cerebellar ataxia. An evaluator observes the subject's ability to perform motor activities across in 8 individual items: ("gait: 0-8 points," "stance: 0-6 points," "sitting: 0-4 points," "speech disturbance: 0-6 points," "finger chase: 0-4 points," "nose-finger test: 0-4 points," "fast alternating hand movements: 0-4 points," and "heel-shin slide: 0-4 points." The total SARA score ranges from 0 (no ataxia) to 40 (severe ataxia).

Secondary

MeasureTime frameDescription
Change from baseline in SARA total scoreUp to 24 weeksThe SARA is a scale that assesses cerebellar ataxia. An evaluator observes the subject's ability to perform motor activities across in 8 individual items: ("gait: 0-8 points," "stance: 0-6 points," "sitting: 0-4 points," "speech disturbance: 0-6 points," "finger chase: 0-4 points," "nose-finger test: 0-4 points," "fast alternating hand movements: 0-4 points," and "heel-shin slide: 0-4 points." The total SARA score ranges from 0 (no ataxia) to 40 (severe ataxia).
Symptom Maintenance Ratio (Ratio of Improvement and Stability Cases) based on SARA total scoreUp to 24 weeksSubjects with the change in total SARA score from baseline of ≤ -1 point are defined as improved subjects, subjects with the change in total SARA score of \> -1 point and \< 1 point as unchanged subjects, and subjects with improvement and subjects with no change are defined as subjects maintaining symptoms.
Change from baseline in SARA individual scoresUp to 24 weeksThe SARA is a scale that assesses cerebellar ataxia. An evaluator observes the subject's ability to perform motor activities across in 8 individual items: ("gait: 0-8 points," "stance: 0-6 points," "sitting: 0-4 points," "speech disturbance: 0-6 points," "finger chase: 0-4 points," "nose-finger test: 0-4 points," "fast alternating hand movements: 0-4 points," and "heel-shin slide: 0-4 points." The total SARA score ranges from 0 (no ataxia) to 40 (severe ataxia).
Change from baseline in SF-8Up to 24 weeksSF-8 is a questionnaire that comprehensively measures health-related QOL. Subjects answer questions in the following 8 items on a scale of 5 or 6: physical functioning, role-physical, bodily pain, general health, vitality, social functioning, role-emotional, and mental health. A higher score indicates better health in that item.

Countries

Japan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 5, 2026