{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Cysteamine+Bitartrate+Delayed-release+Capsules", "query": { "intervention": "Cysteamine Bitartrate Delayed-release Capsules" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 8, "total_pages": 1, "next_page_url": null, "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-09-07T14:56:54.577Z", "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.", "notes": [ "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.", "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.", "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees." ], "trials": [ { "nct_id": "NCT01197378", "title": "Long-Term Safety Follow-up Study of Cysteamine Bitartrate Delayed-release Capsules (RP103)", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Cystinosis" ], "interventions": [ { "name": "Cysteamine Bitartrate Delayed-release Capsules", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Amgen", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "1 Year", "maximum_age": null, "sex": "ALL", "summary": "1 Year and older" }, "enrollment_count": 60, "start_date": "2010-08-27", "completion_date": "2017-06-26", "has_results": true, "last_update_posted_date": "2024-12-27", "last_synced_at": "2026-09-07T14:56:54.577Z", "location_count": 5, "location_summary": "San Francisco, California • Stanford, California • Atlanta, Georgia + 2 more", "locations": [ { "city": "San Francisco", "state": "California" }, { "city": "Stanford", "state": "California" }, { "city": "Atlanta", "state": "Georgia" }, { "city": "Chicago", "state": "Illinois" }, { "city": "Houston", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT01197378" }, { "nct_id": "NCT01744782", "title": "Safety/Effectiveness Study of Cysteamine Bitartrate Delayed-release Capsules (RP103) in Cysteamine Treatment Naive Patients With Cystinosis", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Cystinosis" ], "interventions": [ { "name": "RP103", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Amgen", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": null, "maximum_age": "6 Years", "sex": "ALL", "summary": "Up to 6 Years" }, "enrollment_count": 17, "start_date": "2012-12-20", "completion_date": "2016-12-13", "has_results": true, "last_update_posted_date": "2024-12-27", "last_synced_at": "2026-09-07T14:56:54.577Z", "location_count": 1, "location_summary": "Chicago, Illinois", "locations": [ { "city": "Chicago", "state": "Illinois" } ], "official_url": "https://clinicaltrials.gov/study/NCT01744782" }, { "nct_id": "NCT02473445", "title": "A Long-term Extension of Study RP103-MITO-001 (NCT02023866) to Assess Cysteamine Bitartrate Delayed-release Capsules (RP103) in Children With Inherited Mitochondrial Disease", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Mitochondrial Diseases" ], "interventions": [ { "name": "Cysteamine Bitartrate", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Amgen", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "6 Years", "maximum_age": "17 Years", "sex": "ALL", "summary": "6 Years to 17 Years" }, "enrollment_count": 22, "start_date": "2015-05-19", "completion_date": "2017-03-06", "has_results": true, "last_update_posted_date": "2024-12-27", "last_synced_at": "2026-09-07T14:56:54.577Z", "location_count": 5, "location_summary": "San Diego, California • Stanford, California • Akron, Ohio + 2 more", "locations": [ { "city": "San Diego", "state": "California" }, { "city": "Stanford", "state": "California" }, { "city": "Akron", "state": "Ohio" }, { "city": "Houston", "state": "Texas" }, { "city": "Salt Lake City", "state": "Utah" } ], "official_url": "https://clinicaltrials.gov/study/NCT02473445" }, { "nct_id": "NCT01000961", "title": "Phase 3 Study of Cysteamine Bitartrate Delayed-release (RP103) Compared to Cystagon® in Patients With Cystinosis", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Cystinosis" ], "interventions": [ { "name": "Cystagon® (Cysteamine Bitartrate)", "type": "DRUG" }, { "name": "Cysteamine Bitartrate Delayed-release Capsules (RP103)", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Amgen", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "6 Years", "maximum_age": null, "sex": "ALL", "summary": "6 Years and older" }, "enrollment_count": 43, "start_date": "2010-06", "completion_date": "2011-08", "has_results": true, "last_update_posted_date": "2024-12-19", "last_synced_at": "2026-09-07T14:56:54.577Z", "location_count": 3, "location_summary": "Stanford, California • Atlanta, Georgia • Chicago, Illinois", "locations": [ { "city": "Stanford", "state": "California" }, { "city": "Atlanta", "state": "Georgia" }, { "city": "Chicago", "state": "Illinois" } ], "official_url": "https://clinicaltrials.gov/study/NCT01000961" }, { "nct_id": "NCT01733316", "title": "Open-Label, Safety and Superior Effectiveness Study of Cysteamine Bitartrate Delayed-Release Capsules (RP103) in Cystinosis", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Cystinosis" ], "interventions": [ { "name": "RP103", "type": "DRUG" }, { "name": "Cystagon®", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Amgen", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "12 Years", "maximum_age": null, "sex": "ALL", "summary": "12 Years and older" }, "enrollment_count": 41, "start_date": "2013-01-31", "completion_date": "2017-07-10", "has_results": true, "last_update_posted_date": "2024-12-27", "last_synced_at": "2026-09-07T14:56:54.577Z", "location_count": 5, "location_summary": "San Francisco, California • Stanford, California • Atlanta, Georgia + 2 more", "locations": [ { "city": "San Francisco", "state": "California" }, { "city": "Stanford", "state": "California" }, { "city": "Atlanta", "state": "Georgia" }, { "city": "Chicago", "state": "Illinois" }, { "city": "Houston", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT01733316" }, { "nct_id": "NCT01529268", "title": "Cysteamine Bitartrate Delayed-Release for the Treatment of NAFLD in Children", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2", "PHASE3" ], "conditions": [ "Nonalcoholic Fatty Liver Disease (NAFLD)" ], "interventions": [ { "name": "DR cysteamine bitartrate capsule", "type": "DRUG" }, { "name": "DR cysteamine bitartrate placebo", "type": "OTHER" } ], "intervention_types": [ "DRUG", "OTHER" ], "sponsor": "National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "8 Years", "maximum_age": "17 Years", "sex": "ALL", "summary": "8 Years to 17 Years" }, "enrollment_count": 169, "start_date": "2012-06", "completion_date": "2015-09", "has_results": true, "last_update_posted_date": "2021-06-10", "last_synced_at": "2026-09-07T14:56:54.577Z", "location_count": 10, "location_summary": "San Diego, California • San Francisco, California • Atlanta, Georgia + 7 more", "locations": [ { "city": "San Diego", "state": "California" }, { "city": "San Francisco", "state": "California" }, { "city": "Atlanta", "state": "Georgia" }, { "city": "Chicago", "state": "Illinois" }, { "city": "Indianapolis", "state": "Indiana" } ], "official_url": "https://clinicaltrials.gov/study/NCT01529268" }, { "nct_id": "NCT02023866", "title": "Open-Label, Dose-Escalating Study Assessing Safety, Tolerability, Efficacy, of RP103 in Mitochondrial Disease", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Inherited Mitochondrial Disease, Including Leigh Syndrome" ], "interventions": [ { "name": "Cysteamine Bitartrate", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Amgen", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "6 Years", "maximum_age": "17 Years", "sex": "ALL", "summary": "6 Years to 17 Years" }, "enrollment_count": 36, "start_date": "2014-05", "completion_date": "2016-10", "has_results": true, "last_update_posted_date": "2024-12-27", "last_synced_at": "2026-09-07T14:56:54.577Z", "location_count": 5, "location_summary": "San Diego, California • Stanford, California • Akron, Ohio + 2 more", "locations": [ { "city": "San Diego", "state": "California" }, { "city": "Stanford", "state": "California" }, { "city": "Akron", "state": "Ohio" }, { "city": "Houston", "state": "Texas" }, { "city": "Salt Lake City", "state": "Utah" } ], "official_url": "https://clinicaltrials.gov/study/NCT02023866" }, { "nct_id": "NCT00872729", "title": "Pilot Study of Safety, Tolerability, Pharmacokinetics/Pharmacodynamics of RP103 Compared to Cystagon® in Patients With Cystinosis", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1", "PHASE2" ], "conditions": [ "Cystinosis" ], "interventions": [ { "name": "Cystagon®", "type": "DRUG" }, { "name": "RP103", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Amgen", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": null, "maximum_age": null, "sex": "ALL", "summary": "Not listed" }, "enrollment_count": 9, "start_date": "2009-05", "completion_date": "2009-10", "has_results": true, "last_update_posted_date": "2024-12-19", "last_synced_at": "2026-09-07T14:56:54.577Z", "location_count": 1, "location_summary": "San Diego, California", "locations": [ { "city": "San Diego", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00872729" } ] }