A Staged Therapeutic Approach Using Cyclophosphamide and Methotrexate in the Treatment of Wegener's Granulomatosis and Related Vasculitides
Collecte de données
Maladies Auto-immunes+15
+ Maladies Cardiovasculaires
+ Maladies du Système Immunitaire
Résumé
Date de début de l'étude : 1 mars 1995
Date à laquelle le premier participant a commencé l'étude.The purpose of this study is to assess the efficacy and safety of a staged treatment regimen in Wegener's granulomatosis and related vasculitides in which patients will receive glucocorticoid plus cyclophosphamide at disease onset; cyclophosphamide will be switched to methotrexate upon disease remission. At the current time, cyclophosphamide plus glucocorticoids are the standard of care for the treatment of these disorders. Although this regimen has brought about a marked improvement in survival rate, it has been associated with significant toxicity. Methotrexate plus glucocorticoids have recently been investigated in patients with non life-threatening disease and while this regimen appears to have less toxicity than standard therapy it may be associated with a higher rate of disease relapse. By inducing patients with cyclophosphamide and glucocorticoids then switching to methotrexate at remission, we hope to combine the efficacy of cyclophosphamide with the more favorable toxicity profile of methotrexate. If successful, this regimen could provide a safer, yet effective therapeutic option which would be applicable to all patients regardless of disease severity. In this study, patients will be initially treated with cyclophosphamide and glucocorticoids and then switched from cyclophosphamide to methotrexate upon quiescence of disease activity. If at the end of two full years of methotrexate therapy there is continued evidence of disease remission, the drug will be tapered and ultimately discontinued. Patients will be prospectively monitored for evidence of disease activity and drug toxicity. Specific parameters that will be obtained include the time to disease remission, the rate and time of disease relapse, and the incidence of drug related adverse effects. This study will be open to patients with systemically active Wegener's granulomatosis or related vasculitis regardless of their degree of disease severity.
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.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: Documentation of WG based on clinical characteristics and histopathological evidence of vasculitis. Patients with a positive C- or P-ANCA and glomerulonephritis as evidence 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 will also be eligible. Age 10-80 years. Evidence of active disease as defined by a Vasculitis Disease Activity Index of greater than or equal to 3 or if begun on CTX and glucocorticoid at an outside institution, a history of a Vasculitis Disease Activity Index greater than or equal to 3 at the time of therapy initiation. EXCLUSION CRITERIA: Evidence of active systemic infection which, in the judgement of the investigator, is of greater danger to the patient than the underlying vasculitis. 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. Patients who are pregnant or who are nursing infants will not be eligible. Fertile women must have a negative pregnancy test within one week prior to study entry and must be using an effective means of birth control. Processes associated with an increased risk of MTX toxicity: acute or chronic liver disease, past history of alcohol abuse (greater than 14 oz. of 100 proof liquor or equivalent per week), ongoing alcohol use of any volume that cannot be discontinued upon entry into the study. Serological evidence of infection with human immunodeficiency virus, hepatitis C, or a positive hepatitis B surface antigen. A serological determination will be performed within two weeks of beginning study participation. Inability to comply with study guidelines.
Centres d'étude
Ce sont les hôpitaux, cliniques ou centres de recherche où l'essai est conduit. Vous pouvez trouver le site le plus proche de vous ainsi que son statut.Cette étude comporte 1 site
National Institute of Allergy and Infectious Diseases (NIAID)
Bethesda, United StatesOuvrir National Institute of Allergy and Infectious Diseases (NIAID) dans Google Maps