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A PROSPECTIVE, RANDOMISED, ASSESSOR-BLIND, MULTICENTER STUDY OF EFFICACY AND SAFETY OF COMBINED TREATMENT OF METHOTREXATE + GLUCOCORTICOIDS VERSUS GLUCOCORTICOIDS ALONE IN PATIENTS WITH POLYMYOSITIS AND DERMATOMYOSITIS. - PROMETHEUS

A PROSPECTIVE, RANDOMISED, ASSESSOR-BLIND, MULTICENTER STUDY OF EFFICACY AND SAFETY OF COMBINED TREATMENT OF METHOTREXATE + GLUCOCORTICOIDS VERSUS GLUCOCORTICOIDS ALONE IN PATIENTS WITH POLYMYOSITIS AND DERMATOMYOSITIS. - PROMETHEUS

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2007-004410-13-CZ
Enrollment
50
Registered
2007-10-25
Start date
2008-03-12
Completion date
Unknown
Last updated
2012-03-19

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

Conditions

active polymyositis, dermatomyositis MedDRA version: 9.1 Level: LLT Classification code 10012503 Term: Dermatomyositis MedDRA version: 9.1 Level: LLT Classification code 10036102 Term: Polymyositis

Interventions

Trade Name: Methotrexat Lachema 2,5mg Product Name: Methotrexat Lachema 2,5mg tbl. Product Code: 44/154/85-C Pharmaceutical Form: Tablet INN or Proposed INN: METHOTREXATE CAS Number: 59052 Current Spo

Sponsors

Institute od Rheumatology Prague
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Inclusion criteria 1. Age between 18 - 80 years. 2. Patients with definite or probable polymyositis or dermatomyositis diagnosed according to diagnostic criteria (9, 10) (Appendix 1) 3. Physician’s own judgement of the disease activity that requires high dose immunosuppressive treatment (based on clinical assessment of weakness, elevation of muscle enzymes and, if available, on magnetic resonance imaging findings). 4. Previously untreated patients with the exception of glucocorticoid treatment up to 8 weeks 5. Signed informed consent. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: Exclusion criteria 1. Treatment with any immunosuppressive drug prior the study start. 2. Treatment with glucocorticoids (> 20 mg of Prednisone or equivalent) more than 8 weeks prior to study start. 3. Drug induced myositis. 4. Polymyositis and dermatomyositis in association with other connective tissue disease. 5. Inclusion body myositis. 6. Patients with immunodeficiency syndrome. 7. Pregnancy and lactation. 8. Fertile women not using adequate contraception during the study, women planning to have children during the study course or 12 months after the end of the study. 9. Malignancy. 10. Juvenile dermatomyositis. 11. Uncontrolled, clinically significant hematological, cardiovascular, pulmonary, endocrine, metabolic, gastrointestinal, hepatic or renal disease, which according to physician’s consideration would interfere with high dose glucocorticoid and immunosuppressive treatment or would prevent to follow the treatment protocol. 12. Severe infection. 13. History of drug or alcohol abuse within the previous 6 months. 14. Patients known to be HIV positive. 15. Known hypersensitivity to methotrexate.

Design outcomes

Primary

MeasureTime frame
Main Objective: The primary objective of the study is to determine the safety and efficacy of adding methotrexate (MTX) to glucocorticoids (GC) compared with glucocorticoid treatment alone in patients with inflammatory myopathies. The primary endpoint that will be measured is the total dose of glucocorticoids (in mg/kg weight) administered between baseline and the end of treatment. ;Secondary Objective: The secondary objectives are: • Assessment of disease activity and damage [with the use of newly developed tools for myositis disease activity (MYOACT and MITAX) and myositis damage (MYODAM and MDI), as well as by global assessment of activity and damage by patients and by physician (1)]. •Muscle strength by manual muscle testing •Muscle endurance •Muscle enzyme levels •Glucocorticoid related side-effects •Final glucocorticoid dose •Disability index by HAQ •Quality of life by SF-36 •Number of patients with treatment failures •Search for reliable prognostic parameters in the further prognosis of patients with inflammatory myopathies. •Study of the pathogenic aspects of inflammatory myopathies. Therefore investigations of serum, lymphocytes, muscle tissue and MRI will be organized. DNA and RNA will be stored for future genetic studies. ;Primary end point(s): The primary endpoint that will be measured is the total dose of glucocorticoids (in mg/kg weight) administered between baseline and the end of treatment.

Countries

Czech Republic, Sweden

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026