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A Trial to Test if TEV-56286 is Effective for Treatment of Participants With Multiple System Atrophy

A Multi-centered, Double-blind, Randomized, Placebo-controlled, Parallel Group Phase 2 Study of TEV-56286 for the Treatment of Patients With Multiple System Atrophy (TOPAS-MSA)

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06568237
Acronym
TOPAS-MSA
Enrollment
350
Registered
2024-08-23
Start date
2024-10-02
Completion date
2027-09-15
Last updated
2026-07-20

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

Conditions

Multiple System Atrophy

Keywords

Multiple System Atrophy (MSA)

Brief summary

The primary objective of the study is to evaluate the efficacy of TEV-56286 administered orally for the treatment of adult participants with Multiple System Atrophy (MSA). A secondary objective of the study is to evaluate specific efficacy parameters of TEV-56286. Another secondary objective is to evaluate the safety and tolerability of TEV-56286. The planned study period per participant is 56 weeks including a screening period (up to 4 weeks), a 48-week double-blind treatment period, and a follow-up visit (approximately 4 weeks after the end of the double-blind treatment period). The study duration will be approximately 27 months.

Detailed description

We plan to open locations in the following countries: US, Israel, Italy, Spain, Germany, France, Japan, and Serbia.

Interventions

TEV-56286 capsules administered orally

DRUGPlacebo

Matching placebo administered orally

Sponsors

Teva Branded Pharmaceutical Products R&D LLC
Lead SponsorINDUSTRY

Study design

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

Eligibility

Sex/Gender
ALL
Age
30 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* is considered to be "clinically possible" or "clinically probable" MSA as determined by the Gilman criteria * is medically and psychiatrically stable, as indicated by medical and psychiatric history, as well as physical and neurological examination * Females of child bearing potential (CBP) may be included only if they have a negative pregnancy test at the screening and baseline visits * Females of CBP whose male partners are potentially fertile (ie, no vasectomy) must use highly effective birth control methods * Males who are potentially fertile/reproductively competent (not surgically \[eg, vasectomy\] or congenitally sterile) and their female partners who are of CBP must use, together with their female partners, highly effective birth control methods * Additional criteria apply; please contact the investigator for more information

Exclusion criteria

* has 2 or more relatives with history of MSA, suggestive of an alternative diagnosis other than MSA * has participated in another clinical study involving administration of an IMP within 3 months or 5 half-lives (whichever is longer) of this IMP prior to screening * has a history of, or acknowledges, alcohol or other substance abuse in the 12 months before screening * is a female participant who is pregnant or breastfeeding, or plans to become pregnant during the study * has a known hypersensitivity to any components of the IMP * is of a vulnerable population (eg, people kept in detention or jail) * participant is using or consuming any prohibited concomitant medications within the specified exclusionary windows of this study * Additional criteria apply; please contact the investigator for more information

Design outcomes

Primary

MeasureTime frameDescription
For non-EU: Change From Baseline in the Modified Unified Multiple System Atrophy Rating Scale (UMSARS) Part I Score (excluding item 11)Baseline to Week 48The UMSARS is a multidimensional, validated scale for semi-quantitative clinical assessments of MSA participants. Modified UMSARS part I includes all items with the exclusion of item 11. Item scoring is scaled 0-3 using a range of 0 (no impairment) to 3 (severe impairment).
For EU: Change From Baseline in the Total UMSARS Score Part I and Part II CombinedBaseline to Week 48The UMSARS is comprised of 4 parts: part I, historical review of disease-related impairments, 12 items and part II, motor examination, 14 items. As UMSARS is a unified scale, each item in parts I and II achieves a single score using a range of 0 (no impairment) to 4 (severe impairment).

Secondary

MeasureTime frameDescription
For non-EU: Change From Baseline in the Total UMSARS Score (Part I and Part II combined)Baseline to Week 48
For EU: Change From Baseline in the Modified UMSARS part I score (excluding item 11, item scoring rescaled 0-3)Baseline to Week 48
Change From Baseline in the UMSARS Part 1 ScoreBaseline to Week 48
Change From Baseline in Lateral Ventricle Volume Measured by MRIBaseline to Week 48
Change From Baseline in the Clinical Global Impression - Severity scale (CGI-S)Baseline to Week 48The CGI-S scale permits a global evaluation of the participant's current severity of illness on a Likert type scale ranging from 1 to 7, where 1=normal/not at all ill, 2=borderline ill, 3=mildly ill, 4=moderately ill, 5=markedly ill, 6=severely ill, and 7=among the most extremely ill participants
Change From Baseline in the Neurofilament Light Chain (NfL) Concentrations in Cerebrospinal Fluid (CSF)Baseline to Week 48
Change From Baseline in the Patient Global Impression-Severity Scale (PGI-S)Baseline to Week 48The PGI-S scale permits an evaluation of the participant's MSA severity, according to the participant. The PGI-S scale rates the participant's MSA severity on a 5-point Likert type scale ranging from 0 (not severe) to 4 (very severe)
Change From Baseline in the Pons volume measured by MRIBaseline to Week 48
Change From Baseline in the Cerebellar volume measured by MRIBaseline to Week 48
Change From Baseline in the UMSARS part II scoreBaseline to Week 48
Change From Baseline in the UMSARS part IV scoreBaseline to Week 48
Change From Baseline in the Two-minute walk test as part of gait assessmentBaseline to Week 48
Change From Baseline in the Multiple System Atrophy - Quality of Life (MSA-QoL) ScoreBaseline to Week 48The 40-item MSA-QoL questionnaire is self-administered and each item is rated on a Likert type scale (0: No problem) to (4: Extreme problem). It is comprised of 3 subscales relevant to MSA: motor (14 items), non-motor (12 items), and emotional/social (14 items). The MSA-QoL total score is the sum of all the items and lower scores indicate better QoL.
Number of Participants With At Least One Treatment-Emergent Adverse Event (TEAEs)Up to Week 48
Number of Participants Who Withdraw From the Study Due to an Adverse EventUp to Week 48
Number of Participants Who Withdraw From Treatment Due to an Adverse EventUp to Week 48
Number of Participants With At Least One Potentially Clinically Significant Abnormal Vital Sign ValueUp to Week 48
Number of Participants With At Least One Potentially Clinically Significant Laboratory Test ValueUp to Week 48
Number of Participants with at Least One Potentially Clinically Significant Change in 12-lead Electrocardiogram (ECG) FindingsUp to Week 48

Countries

France, Germany, Israel, Italy, Japan, Serbia, Spain, United States

Contacts

CONTACTTeva U.S. Medical Information
USMedInfo@tevapharm.com1-888-483-8279
STUDY_DIRECTORTev Medical Expert, Study Director

Teva Branded Pharmaceutical Products R&D LLC

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 21, 2026