Etude du sirolimus dans la fibrose rétropéritonéale idiopathique
Étude prospective de la prednisone versus le sirolimus dans le traitement de la fibrose rétropéritonéale idiopathique
Retroperitoneal fibrosis refers to a group of diseases characterized by hyperplasia of the fibrosclerotic tissues in the retroperitoneal space, which can compress the surrounding ureters and inferior vena cava and cause serious complications such as aortic aneurysm, renal failure, and even death. The lesion is diffuse and difficult to resect. corticosteroid is the first-line medication, but the recurrence rate of the disease is high, especially after dose reduction of corticosteroid. Therefore, the combined use of immunosuppressants is very important in preventing disease recurrence and reducing the toxic and side effects of long-term corticosteroid. Sirolimus plays dual roles in inhibiting lymphocyte activation and fibroblast proliferation. It is inferred from its mechanism that sirolimus is a good potential treatment option for idiopathic retroperitoneal fibrosis. Therefore, we conducted this RCT on patients with idiopathic retroperitoneal fibrosis to determine the efficacy and safety of sirolimus.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Retroperitoneal fibrosis refers to a group of diseases characterized by hyperplasia of the fibrosclerotic tissues in the retroperitoneal space, which mostly involve the abdominal aorta and iliac artery distal to the kidneys. The hyperplastic tissues can compress the surrounding ureters and inferior vena cava and cause serious complications such as aortic aneurysm, renal failure, and even death. There is no clear boundary between the lesion and its surrounding tissues. The lesion is diffuse and difficult to resect. corticosteroid is the first-line medication, but the recurrence rate of the disease is high, especially after dose reduction of corticosteroid. Therefore, the combined use of immunosuppressants is very important in preventing disease recurrence and reducing the toxic and side effects of long-term high- and medium-dose corticosteroid. In recent years, as the immunological characteristics of retroperitoneal fibrosis have gradually been recognized, some rheumatologists and immunologists have attempted to use immunosuppressants commonly used for autoimmune diseases in this population, including biologics. However, high-level evidences of evidence-based medicine such as randomized controlled trials (RCTs) were still lacking. Sirolimus plays dual roles in inhibiting T lymphocyte activation and fibroblast proliferation. It is inferred from its mechanism that sirolimus is a good potential treatment option for idiopathic retroperitoneal fibrosis. Therefore, we conducted this RCT on patients with idiopathic retroperitoneal fibrosis to determine the efficacy and safety of sirolimus.
Type d'étude
Inscription (Réel)
Phase
- Phase 2
- Phase 3
Contacts et emplacements
Lieux d'étude
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Beijing Municipality
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Beijing, Beijing Municipality, Chine, 100000
- Peking University International Hospital
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- Idiopathic retroperitoneal fibrosis diagnosed on CT or MRI. For patients with suspected secondary retroperitoneal fibrosis or atypical idiopathic retroperitoneal fibrosis suggested by imaging, idiopathic retroperitoneal fibrosis should be confirmed by puncture biopsy
- Increased ESR and CRP levels caused by this disease and/or active lesions suggested on imaging
Exclusion Criteria:
- Secondary retroperitoneal fibrosis
- Having used corticosteroid (equivalent to >10 mg per day of prednisone), immunosuppressant, or biologic within 3 months prior to enrollment
- Having any contraindication of prednisone or sirolimus, or allergy to sirolimus, or having experienced serious adverse reactions from the previous use of any of the above drugs
- Massive proteinuria (24-hour urine protein quantitation ≥3 g), moderate-to-severe anemia (hemoglobin <90 g/L), agranulocytosis (white blood cell count <1.5×10^9/L or neutrophil count <0.5×10^9/L), platelet count <50×10^9/L, interstitial pneumonia
- Uncontrollable diabetes, hypertension, hyperlipidemia, infection, or heart failure, or other serious complications
- Malignancy
- Pregnancy or need for pregnancy in the near future
- Unable to adhere to follow-up or refuses to provide consent
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
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Expérimental: sirolimus group
Sirolimus: 2 mg/day for the first 3 days and 1 mg/day thereafter. The plasma drug concentration was monitored at 14 days, 12 weeks, and 48 weeks of medication to maintain a plasma drug concentration of 4-15 ug/L. Prednisone: 0.8 mg/kg/d (maximum dose: 60 mg/d), reduced by 5 mg every 14 days, by 2.5 mg every 2 weeks after 30 mg/d until discontinuation. |
The efficacy is evaluated at 12 weeks, and treatment will be adjusted according to the control of disease and adverse effects.For experimental group, if a patient is assessed as treatment failure (TS), the patient should be withdrawn from the study and receive rescue treatment. Whereas, a patient would be transferred to the control group if he/ she cann't stand the side effects of sirolimus but not serious adverse event (SAE). The efficacy is evaluated at 12 weeks, and treatment will be adjusted according to the control of disease and adverse effects. For active comparator group, if a patient is assessed as treatment failure (TF), the patient should be withdrawn from the study and receive rescue treatment.
Autres noms:
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Comparateur actif: corticosteroid group
Prednisone: 0.8 mg/kg/d (maximum dose: 60 mg/d), reduced by 5 mg every 14 days, by 2.5 mg every 2 weeks after 30 mg/d until 5-7.5 mg/d. |
The efficacy is evaluated at 12 weeks, and treatment will be adjusted according to the control of disease and adverse effects. For active comparator group, if a patient is assessed as treatment failure (TF), the patient should be withdrawn from the study and receive rescue treatment.
Autres noms:
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Délai |
|---|---|
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Taux de récidive
Délai: jusqu'à la fin des études, en moyenne 1 an
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jusqu'à la fin des études, en moyenne 1 an
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Mesures de résultats secondaires
Mesure des résultats |
Délai |
|---|---|
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Taux d'échec du traitement
Délai: 12 semaines de traitement
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12 semaines de traitement
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Dose cumulée de prednisone
Délai: 48 semaines
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48 semaines
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Taille de la masse fibreuse rétropéritonéale
Délai: 48 semaines
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48 semaines
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Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Hui Gao, Doctor, Peking University International Hospital
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
- Processus pathologiques
- Fibrose
- Conditions pathologiques, signes et symptômes
- Fibrose rétropéritonéale
- Hormones
- Hormones, substituts hormonaux et antagonistes hormonaux
- Produits chimiques organiques
- Composés polycycliques
- Prégnades
- Grossesse
- Stéroïdes
- Composés à anneau fusionné
- Macrolides
- Lactones
- Grossissements
- Sirolimus
- Prednisone
- Hormones cortex surrénaliques
Autres numéros d'identification d'étude
- Sirolimus for RPF
Plan pour les données individuelles des participants (IPD)
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Informations sur les médicaments et les dispositifs, documents d'étude
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