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NCT05428826: METRO
Early Discontinuation of Steroid Treatment in Negative FDG-PET/CT Patients With Idiopathic Retroperitoneal Fibrosis
Phase 4 trial testing Prednisone in Idiopathic Retroperitoneal Fibrosis in 41 participants. Currently enrolling.
25 November 2026
Quick facts
| Lead sponsor | Assistance Publique - Hôpitaux de Paris |
|---|---|
| Phase | Phase 4 |
| Status | Recruiting now |
| Study type | INTERVENTIONAL |
| Allocation | na |
| Design | single group |
| Masking | none |
| Primary purpose | treatment |
| Enrollment | 41 |
| Start date | 25 November 2022 |
| Primary completion | 25 November 2026 |
| Estimated completion | 25 November 2028 |
| Sites | 15 locations across France |
Drugs / interventions tested
- Prednisone (prednisone) — full drug profile →
Conditions studied
- Idiopathic Retroperitoneal Fibrosis — all drugs for Idiopathic Retroperitoneal Fibrosis →
Sponsor
Assistance Publique - Hôpitaux de Paris — full company profile →
Who can join
18 and older, any sex, with Idiopathic Retroperitoneal Fibrosis. Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
Adult patients with a diagnosis of idiopathic retroperitoneal fibrosis Prospective multicentric cohort study Intervention : administration of prednisone during 9 to 21 months at 1mg/kg/day at inclusion.
Publications & conference data
No peer-reviewed publications indexed yet for this trial.
Verify or expand the search:
- PubMed search for NCT05428826
- Europe PMC full search
- ASCO Meeting Library
- ESMO Meeting Library
- bioRxiv preprints
- medRxiv preprints
- Google Scholar
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Other Assistance Publique - Hôpitaux de Paris trials
Trials by the same sponsor.
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Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT05428826 (US National Library of Medicine, public domain)
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by Assistance Publique - Hôpitaux de Paris
- Last refreshed: 25 May 2025
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT05428826.
Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing