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Duchenne Muscular DystrophyPhase 2NCT02752048

A Phase IIa Study of TAS-205 for Duchenne Muscular Dystrophy

A Phase 2 study testing TAS-205 in people with Duchenne Muscular Dystrophy, run by Taiho Pharmaceutical Co., Ltd. at 11 sites in Japan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The objective of this study is to evaluate the efficacy after 24-week repeated oral doses of TAS-205 in patients with Duchenne Muscular Dystrophy (DMD) in an exploratory manner. Read more about this study

Who is it for?
Ages 5 years and older, men only
Conditions the study is for
Duchenne Muscular Dystrophy
What is being tested?
TAS-205
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
36 participants
Where
11 sitesJapan
Study dates
May 2016to 17 Oct 2017
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 5 years and older
  • Men only
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Able to give an informed consent. If applicable, able to give an informed assent.
  • Phenotypic evidence of DMD.
  • Male and ≧5 years of age.
  • Bodyweight ≧7.5 kg and <60 kg.
  • Able to complete the 6MWD test with a distance of at least 75 m.
  • Able to take tablets.
  • If taking oral glucocorticoids no significant change in the total daily or dosing 6 months before enrollment.

Who cannot join

  • Any serious drug allergy.
  • A forced vital capacity (FVC) of <50% of predicted value.
  • Wearing a respirator continuously (except for the use during sleep).
  • A left ventricular ejection fraction (EF) of <40% or fractional shortening (FS) of <25% on echocardiogram.
  • Clinically significant cardiac failure and respiratory failure.
  • Ongoing immunosuppressive therapy (other than corticosteroids) .
Show all 10Show fewer
  • Surgical history or plan for surgery that may affect muscular strength or motor function.
  • Any injury that may affect muscular strength or motor function.
  • With any systemic allergic disease or any chronic inflammatory disease.
  • Previous gene therapy (exon skipping, or stop codon read through therapy), cell-based therapy, or any other investigational agents.

Trial locations and contacts

11 sites in 1 country.

11 sites in 1 country

Japan11 sites
  • Nagoya City University Hospital

    Aichi, 467-8601

  • National Hospital Organization Nagara Medical Center

    Gifu, 502-8558

  • Kobe University Hospital

    Hyōgo, 650-0017

  • National Hospital Organization Utano Hospital

    Kyoto, 616-8255

  • Shinshu University Hospital

    Nagano, 390-8621

  • National Hospital Organization Niigata National Hospital

    Niigata, 945-8585

  • National Hospital Organization Toneyama National Hospital

    Osaka, 560-8552

  • National Hospital Organization Higashisaitama Hospital

    Saitama, 349-0196

  • Tokyo Women's Medical University Hospital

    Tokyo, 162-8666

  • National Center of Neurology and Psychiatry

    Tokyo, 187-8551

  • Tottori University Hospital

    Tottori, 683-8504

Other trials in Japan

About this study

Official title: A Randomized Phase IIa Study of TAS-205 in Patients With Duchenne Muscular Dystrophy

The objective of this study is to evaluate the efficacy after 24-week repeated oral doses of TAS-205 in patients with Duchenne Muscular Dystrophy (DMD) in an exploratory manner.

Read the detailed description

Duchenne Muscular Dystrophy (DMD) is the most common fatal genetic disorder diagnosed in childhood, affecting approximately 1 in 3,500 lives male births. DMD patients suffer from a relentless decline in muscle strength that impairs the ability of walking and breathing, resulting in their lives with wheelchairs and then loss of upper body function. The main objective of this study is to evaluate the efficacy after 24-week repeated oral doses of TAS-205 in patients with DMD in an exploratory manner. The objective of this study is also to evaluate the safety, the dose-response and the urinary excretion of pharmacodynamic (PD) marker after 24-week repeated oral doses of TAS-205 in DMD patients.

Being tested
TAS-205, Placebo
Medical subject headings
Muscular Dystrophy, Duchenne

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • TAS-205Drug

    2 groups: Low dose group, High dose group. Oral administration for 24 weeks, bis in die (BID) after meal

  • PlaceboDrug

    1 group: Placebo group. Oral administration for 24 weeks, BID after meal

Study groups in NCT02752048
Study groupRoleWhat they receive
TAS-205(Low dose group)ExperimentalLow dose group:Oral administration of tablets for 24 weeks, bis in die (BID) after meal The number of tablets of the study drug corresponding to the dosage (6.67-13.33 mg/kg/dose) by body weight within 14 days before enrollment was to be administered within 30 minutes after breakfast and dinner.
Receives: Drug: TAS-205
TAS-205(High dose group)ExperimentalHigh dose group: Oral administration of tablets for 24 weeks, bis in die (BID) after meal The number of tablets of the study drug corresponding to the dosage (13.33-26.67 mg/kg/dose) by body weight within 14 days before enrollment was to be administered within 30 minutes after breakfast and dinner.
Receives: Drug: TAS-205
PlaceboPlacebo comparatorPlacebo group: Oral administration of tablets for 24 weeks, BID after meal
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Mean Change From Baseline to 24 Weeks in the 6-minute Walk Distance (6MWD)

    The distance the subject can walk as fast as possible in 6 minutes will be evaluated.

    Measured: baseline, 24 weeks

Secondary outcomes (3)
  1. Mean Change From Baseline in Time to Rise From the Floor

    The time required for the subject to rise from a supine position on the floor as quickly as possible will be evaluated.

    Measured: baseline, and 24 weeks

  2. Mean Change From Baseline in Time to Walk/Run for 10meters

    The time required for the subject to run or walk as quickly as possible a 10 m-wide passage with marks affixed on the floor will be evaluated.

    Measured: baseline, and 24 weeks

  3. Mean Change From Baseline in Time to up and go (TUG)

    This test will assess the extent of the subject's composite mobility, including standing up, walking, repositioning the body, and balancing.

    Measured: baseline, and 24 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Apr 2016 (estimated)
  2. Study startMay 2016
  3. Primary completion15 May 2017
  4. Study completion17 Oct 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02752048
Sponsor's protocol ID
Taiho10053040
Status last verified
Mar 2020
First submitted
6 Apr 2016
Last updated
20 Apr 2020

Publications

  • Komaki H, Maegaki Y, Matsumura T, Shiraishi K, Awano H, Nakamura A, Kinoshita S, Ogata K, Ishigaki K, Saitoh S, Funato M, Kuru S, Nakayama T, Iwata Y, Yajima H, Takeda S. Early phase 2 trial of TAS-205 in patients with Duchenne muscular dystrophy. Ann Clin Transl Neurol. 2020 Feb;7(2):181-190. doi: 10.1002/acn3.50978. Epub 2020 Jan 20.

    PubMed 31957953

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing TAS-205 in people with Duchenne Muscular Dystrophy, run by Taiho Pharmaceutical Co., Ltd. at 11 sites in Japan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 20 Apr 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 11 sites in Japan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 20 Apr 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Mean Change From Baseline to 24 Weeks in the 6-minute Walk Distance (6MWD) (time frame: baseline, 24 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02752048, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Apr 2020.

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