Last updated on June 2019

Tamoxifen in Duchenne Muscular Dystrophy


Are you eligible to participate in this study?

You may be eligible for this study if you meet the following criteria:

  • Conditions: DUCHENNE MUSCULAR DYSTROPHY
  • Age: Between 1 - 16 Years
  • Gender: Male

Inclusion Criteria:

Group A (ambulant patients)

  • Documented diagnosis of DMD by mutation analysis in the dystrophin gene or by substantially reduced levels of dystrophin protein (i.e. absent or <5% of normal) on Western blot or immunostaining
  • Stable treatment with glucocorticoids >6 months (no significant change in dosage (>0.2mg/kg)) at screening; dosing adaptations according to weight change are allowed
  • Male gender
  • 6.5 to 12 years of age at time of screening
  • weight >15kg
  • ambulant patients
  • able to walk at least 350 meters in 6 minute walking distance test without assistance
  • MFM D1 subdomain of the MFM scale >40% at screening
  • Ability to provide informed consent and to comply with study requirements

Group B (non-ambulant patients)

  • Documented diagnosis of DMD by mutation analysis in the dystrophin gene or by substantially reduced levels of dystrophin protein (i.e. absent or <5% of normal) on Western blot or immunostaining
  • Not using glucocorticoids for >6 months
  • Male gender
  • Non-ambulant patients (walking distance less than 10 meters)
  • 10 to 16 years of age at time of screening
  • Ability to provide informed consent and to comply with study requirements

Exclusion Criteria:

  • Known individual hypersensitivity or allergy to tamoxifen
  • Female gender
  • Use of tamoxifen or testosterone within the last 3 months
  • Known or suspected malignancy
  • Other chronic disease or clinically relevant limitation of renal, liver or heart function
  • Known or suspected non-compliance
  • Any injury which may impact functional testing, e.g. upper or lower limb fracture
  • Planned or expected spinal fusion surgery during the study period (as judged by the Investigator; i.e. due to rapid progressing scoliosis), previous spinal fusion surgery is allowed if it took place more than 6 months prior to screening.
  • Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders of the participant/parents (as judged by the investigator)
  • Concomitant participation in any other interventional trial (and up to 3 months prior to screening)

Group A:

  • Glucocorticoid nave patients
  • Start of glucocorticoid treatment or change in dosage <6 month prior to screening (dosing adaptations according to weight change are allowed)

Group B:

  • Glucocorticoid treated patients or patients that stopped glucocorticoid treatment <6 month prior to screening
  • Assisted ventilation of any kind necessary

Recruitment Status: Open


Brief Description Eligibility Contact Research Team


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