An Open Trial of the Efficacy of Glucocorticoids and Methotrexate (MTX) in the Treatment of Systemic Vasculitis
prednisone and methotrexate
Maladies génito-urinaires+22
+ Maladies Auto-immunes
+ Maladies Cardiovasculaires
Étude thérapeutique
Résumé
Date de début de l'étude : 1 mars 1990
Date à laquelle le premier participant a commencé l'étude.Previous studies at the NIH have demonstrated that in over 90% of cases of Wegener's granulomatosis (WG) and other systemic necrotizing vasculitides, glucocorticoid (GC) and daily low dose cyclophosphamide (CP) therapy has resulted in marked improvement and even remission. However, such therapy has been associated with about 50% relapses, 10% resistance to initial treatment and significant toxicity in almost all patients. Consequently, we have attempted to identify alternative therapies for the systemic vasculitides that would be less toxic then daily CP. An NIH study of the efficacy of intermittent high dose intravenous CP and daily GC (Protocol #88-I-56) revealed that 79% of 14 patients with WG either failed to respond to treatment, did not sustain improvement or could not tolerate continued treatment during a period of approximately two years. In another study (Protocol #89-I-18), we evaluated treatment with GC and weekly oral doses of methotrexate (MTX) in 15 patients with Takayasu's arteritis, in whom disease previously failed to be controlled with GC, GC + CP, or in whom remission with such treatment was followed by relapse. Fifty-three percent (8/15) of patients previously dependent on GC were able to achieve remission and discontinue GC therapy. Five of seven patients who remained on GC were in remission and receiving at least 50% less GC than prior to MTX therapy. Only three patients had progressive disease. The mean follow-up period was 20 months. We have also recently analyzed our results for MTX + GC therapy and 29 patients with WG. Seventy-six percent of patients had marked improvement and 69% achieved remission. Seventy-two percent of those in remission have not required GC therapy for a mean period 10 months. We conclude that weekly low dose MTX therapy is a feasible alternative to CP in the treatment of systemic vasculitis. Judgement of the ultimate value of such therapy should be deferred until a greater number of patients have been studied over a longer period of time.
Protocole
Cette section fournit des détails sur le plan de l'étude, y compris la manière dont l'étude est conçue et ce qu'elle évalue.100 participants à inclure
Nombre total de participants que l'essai clinique vise à recruter.Traitement
Éligibilité
Les chercheurs recherchent des patients correspondant à une certaine description appelée critères d'éligibilité : état de santé général ou traitements antérieurs du patient.Tout sexe
Le sexe biologique des participants éligibles à s'inscrire.Volontaires sains non autorisés
Indique si les individus en bonne santé et ne présentant pas la condition étudiée peuvent participer.Conditions
Pathologie
Critères
INCLUSION CRITERIA: Diagnosis: Wegener's granulomatosis. Age: 10-80 years. Qualifications to eligibility: Prior documentation of vasculitis based on clinical characteristics and histopathological and/or angiographic evidence of vasculitis. Patients will be eligible for this study regardless of whether they are currently receiving immunosuppressive therapies. Failure to respond to prior therapy with other cytotoxic agents or toxicity from such agents, in the setting of persistent disease, will constitute one reason for eligibility for this study. In the absence of histopathological and/or angiographic evidence of vasculitis, patients with the following criteria will also be eligible: A. Positive C-ANCA (done at the NIH), and B. Glomerulonephritis as evidenced by the presence of red blood cell casts and proteinuria or renal biopsy showing necrotizing glomerulonephritis in the absence of positive immunofluorescence for immunoglobulin and complement, and C. One or more of the following: Inflammatory sinusitis with histopathological evidence of granulomatous inflammation and negative special stains for mycobacteria and fungi. Sinusitis must be present for at least 3 months and have failed to respond to at least 2 weeks of antibiotic therapy directed against likely pathogens (H. influenza, S. pneumonia, and upper respiratory tract anaerobic bacteria); Pulmonary nodule or infiltrates in a patient in the absence of infection. Evidence of active disease as defined by a Vasculitis Disease Activity Index of greater than or equal to 3 (Appendix I) or if begun on immunosuppressive therapy at an outside institution, a history of a Vasculitis Disease Activity Index greater than or equal to 3 during the past 6 months. EXCLUSION CRITERIA: Evidence of infection by gram stain and/or culture specimens. In those instances in which infection cannot be ruled out by gram stain and culture of secretions or collections of fluid in involved organs, it may be necessary to obtain a biopsy of the affected tissue for microbiological and histopathological studies. Recent (within four weeks) increase in GC or cytotoxic drug therapy. Patients who are pregnant or nursing infants will not be eligible. Fertile women should have a negative pregnancy test within one week prior to study entry and should be using effective means of birth control. Processes that would predispose to enhanced risk of MTX toxicity: acute or chronic liver disease, alcohol abuse (greater than 14 oz of 100 proof liquor or equivalent per week), active peptic ulcer disease, and inability to comply with study guidelines. Serological evidence of infection with human immunodeficiency virus (a serological determination will be performed within two weeks of study entry).
Centres d'étude
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National Institute of Allergy and Infectious Diseases (NIAID)
Bethesda, United StatesOuvrir National Institute of Allergy and Infectious Diseases (NIAID) dans Google Maps