{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Vitamin+D+-+Treatment+2&page=6", "query": { "intervention": "Vitamin D - Treatment 2", "page": 6 }, "page_size": 10 }, "pagination": { "page": 6, "page_size": 10, "total_count": 188, "total_pages": 19, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Vitamin+D+-+Treatment+2&page=7&page_size=10", "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Vitamin+D+-+Treatment+2&page=5&page_size=10" }, "source": "remote", "last_synced_at": "2026-10-11T19:03:27.698Z", "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": "NCT03046927", "title": "Vitamin D and Residual Beta-Cell Function in Type 1 Diabetes", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2", "PHASE3" ], "conditions": [ "Type 1 Diabetes" ], "interventions": [ { "name": "Ergocalciferol", "type": "DRUG" }, { "name": "Placebo", "type": "OTHER" } ], "intervention_types": [ "DRUG", "OTHER" ], "sponsor": "Benjamin U. Nwosu, MD", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "10 Years", "maximum_age": "21 Years", "sex": "ALL", "summary": "10 Years to 21 Years" }, "enrollment_count": 48, "start_date": "2017-10-19", "completion_date": "2021-04-20", "has_results": true, "last_update_posted_date": "2024-07-10", "last_synced_at": "2026-10-11T19:03:27.698Z", "location_count": 1, "location_summary": "Worcester, Massachusetts", "locations": [ { "city": "Worcester", "state": "Massachusetts" } ], "official_url": "https://clinicaltrials.gov/study/NCT03046927" }, { "nct_id": "NCT04334512", "title": "A Study of Quintuple Therapy to Treat COVID-19 Infection", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "COVID-19", "Corona Virus Infection", "Coronavirus-19", "Sars-CoV2" ], "interventions": [ { "name": "Hydroxychloroquine", "type": "DRUG" }, { "name": "Azithromycin", "type": "DRUG" }, { "name": "Vitamin C", "type": "DIETARY_SUPPLEMENT" }, { "name": "Vitamin D", "type": "DIETARY_SUPPLEMENT" }, { "name": "Zinc", "type": "DIETARY_SUPPLEMENT" } ], "intervention_types": [ "DRUG", "DIETARY_SUPPLEMENT" ], "sponsor": "ProgenaBiome", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 118, "start_date": "2020-06-22", "completion_date": "2024-02-27", "has_results": false, "last_update_posted_date": "2024-02-29", "last_synced_at": "2026-10-11T19:03:27.698Z", "location_count": 1, "location_summary": "Ventura, California", "locations": [ { "city": "Ventura", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT04334512" }, { "nct_id": "NCT04801849", "title": "Vitamin E Dosing Study", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Nonalcoholic Fatty Liver Disease", "Nonalcoholic Steatohepatitis" ], "interventions": [ { "name": "Vitamin E", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 200, "start_date": "2022-08-05", "completion_date": "2025-06-30", "has_results": true, "last_update_posted_date": "2026-05-14", "last_synced_at": "2026-10-11T19:03:27.698Z", "location_count": 9, "location_summary": "La Jolla, California • Los Angeles, California • San Francisco, California + 6 more", "locations": [ { "city": "La Jolla", "state": "California" }, { "city": "Los Angeles", "state": "California" }, { "city": "San Francisco", "state": "California" }, { "city": "Indianapolis", "state": "Indiana" }, { "city": "St Louis", "state": "Missouri" } ], "official_url": "https://clinicaltrials.gov/study/NCT04801849" }, { "nct_id": "NCT01317940", "title": "Nutrition and Body Composition in Acute Lymphoblastic Leukemia", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Precursor Cell Lymphoblastic Leukemia-Lymphoma", "Vitamin D Deficiency" ], "interventions": [ { "name": "Vitamin D and Calcium Citrate", "type": "DIETARY_SUPPLEMENT" } ], "intervention_types": [ "DIETARY_SUPPLEMENT" ], "sponsor": "Children's Hospital Los Angeles", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "10 Years", "maximum_age": "29 Years", "sex": "ALL", "summary": "10 Years to 29 Years" }, "enrollment_count": 76, "start_date": "2011-03", "completion_date": "2016-01", "has_results": true, "last_update_posted_date": "2020-07-08", "last_synced_at": "2026-10-11T19:03:27.698Z", "location_count": 1, "location_summary": "Los Angeles, California", "locations": [ { "city": "Los Angeles", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT01317940" }, { "nct_id": "NCT01320722", "title": "Study of Vitamin D and Uric Acid Lowering on Kidney and Blood Vessel Function", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Renal Function", "Endothelial Function", "Blood Pressure", "Overweight", "Obesity" ], "interventions": [ { "name": "Vitamin D ergocalciferol", "type": "DRUG" }, { "name": "Probenecid", "type": "DRUG" }, { "name": "Allopurinol", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Brigham and Women's Hospital", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "75 Years", "sex": "ALL", "summary": "18 Years to 75 Years" }, "enrollment_count": 242, "start_date": "2011-03", "completion_date": "2015-06", "has_results": true, "last_update_posted_date": "2017-06-29", "last_synced_at": "2026-10-11T19:03:27.698Z", "location_count": 1, "location_summary": "Boston, Massachusetts", "locations": [ { "city": "Boston", "state": "Massachusetts" } ], "official_url": "https://clinicaltrials.gov/study/NCT01320722" }, { "nct_id": "NCT00057031", "title": "Study of High-Dose Pulse Administration DN-101 (Calcitriol) in Patients With Myelodysplastic Syndrome (MDS)", "overall_status": "UNKNOWN", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Myelodysplastic Syndrome" ], "interventions": [ { "name": "DN-101 (calcitriol)", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Novacea", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 46, "start_date": "2002-11", "completion_date": "2004-03", "has_results": false, "last_update_posted_date": "2006-11-01", "last_synced_at": "2026-10-11T19:03:27.698Z", "location_count": 10, "location_summary": "Hoover, Alabama • San Francisco, California • Tampa, Florida + 7 more", "locations": [ { "city": "Hoover", "state": "Alabama" }, { "city": "San Francisco", "state": "California" }, { "city": "Tampa", "state": "Florida" }, { "city": "Chicago", "state": "Illinois" }, { "city": "Buffalo", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT00057031" }, { "nct_id": "NCT01222234", "title": "Impact of Vitamin D Therapies on Chronic Kidney Disease", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Chronic Kidney Disease (CKD)", "End-stage Renal Disease (ESRD)" ], "interventions": [ { "name": "Cholecalciferol - CKD", "type": "DRUG" }, { "name": "Calcitriol - CKD", "type": "DEVICE" }, { "name": "Cholecalciferol - non-CKD", "type": "DRUG" } ], "intervention_types": [ "DRUG", "DEVICE" ], "sponsor": "University of Kansas Medical Center", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "21 Years", "maximum_age": "90 Years", "sex": "ALL", "summary": "21 Years to 90 Years" }, "enrollment_count": 56, "start_date": "2010-10", "completion_date": "2012-08", "has_results": true, "last_update_posted_date": "2016-05-16", "last_synced_at": "2026-10-11T19:03:27.698Z", "location_count": 1, "location_summary": "Kansas City, Kansas", "locations": [ { "city": "Kansas City", "state": "Kansas" } ], "official_url": "https://clinicaltrials.gov/study/NCT01222234" }, { "nct_id": "NCT00421733", "title": "The Effect of Paricalcitol Capsules on Reducing Albuminuria in Patients With Type 2 Diabetic Nephropathy Being Treated With Renin-angiotensin System Inhibitors", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Diabetic Nephropathy", "Chronic Kidney Disease" ], "interventions": [ { "name": "Zemplar (paricalcitol) capsules", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Abbott", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "20 Years", "maximum_age": null, "sex": "ALL", "summary": "20 Years and older" }, "enrollment_count": 281, "start_date": "2006-12", "completion_date": "2009-06", "has_results": true, "last_update_posted_date": "2012-01-20", "last_synced_at": "2026-10-11T19:03:27.698Z", "location_count": 27, "location_summary": "Phoenix, Arizona • Fountain Valley, California • Yuba City, California + 21 more", "locations": [ { "city": "Phoenix", "state": "Arizona" }, { "city": "Fountain Valley", "state": "California" }, { "city": "Yuba City", "state": "California" }, { "city": "Hudson", "state": "Florida" }, { "city": "Lauderdale Lakes", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT00421733" }, { "nct_id": "NCT03126916", "title": "Testing the Addition of 131I-MIBG or Lorlatinib to Intensive Therapy in People With High-Risk Neuroblastoma (NBL)", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Ganglioneuroblastoma", "Ganglioneuroblastoma, Nodular", "Neuroblastoma" ], "interventions": [ { "name": "Autologous Hematopoietic Stem Cell Transplantation", "type": "PROCEDURE" }, { "name": "Biospecimen Collection", "type": "PROCEDURE" }, { "name": "Bone Marrow Aspiration and Biopsy", "type": "PROCEDURE" }, { "name": "Busulfan", "type": "DRUG" }, { "name": "Carboplatin", "type": "DRUG" }, { "name": "Cisplatin", "type": "DRUG" }, { "name": "Computed Tomography", "type": "PROCEDURE" }, { "name": "Cyclophosphamide", "type": "DRUG" }, { "name": "Dexrazoxane Hydrochloride", "type": "DRUG" }, { "name": "Dinutuximab", "type": "BIOLOGICAL" }, { "name": "Doxorubicin Hydrochloride", "type": "DRUG" }, { "name": "Echocardiography Test", "type": "PROCEDURE" }, { "name": "Etoposide Phosphate", "type": "DRUG" }, { "name": "External Beam Radiation Therapy", "type": "RADIATION" }, { "name": "Iobenguane I-123", "type": "RADIATION" }, { "name": "Iobenguane I-131", "type": "RADIATION" }, { "name": "Isotretinoin", "type": "DRUG" }, { "name": "Lorlatinib", "type": "DRUG" }, { "name": "Magnetic Resonance Imaging", "type": "PROCEDURE" }, { "name": "Melphalan Hydrochloride", "type": "DRUG" }, { "name": "Multigated Acquisition Scan", "type": "PROCEDURE" }, { "name": "Positron Emission Tomography", "type": "PROCEDURE" }, { "name": "Sargramostim", "type": "BIOLOGICAL" }, { "name": "Therapeutic Conventional Surgery", "type": "PROCEDURE" }, { "name": "Thiotepa", "type": "DRUG" }, { "name": "Topotecan Hydrochloride", "type": "DRUG" }, { "name": "Vincristine Sulfate", "type": "DRUG" } ], "intervention_types": [ "PROCEDURE", "DRUG", "BIOLOGICAL", "RADIATION" ], "sponsor": "Children's Oncology Group", "sponsor_class": "NETWORK", "healthy_volunteers": false, "eligibility": { "minimum_age": "365 Days", "maximum_age": "30 Years", "sex": "ALL", "summary": "365 Days to 30 Years" }, "enrollment_count": 750, "start_date": "2018-05-14", "completion_date": "2030-09-30", "has_results": false, "last_update_posted_date": "2026-08-25", "last_synced_at": "2026-10-11T19:03:27.698Z", "location_count": 152, "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 121 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Phoenix", "state": "Arizona" }, { "city": "Little Rock", "state": "Arkansas" }, { "city": "Downey", "state": "California" }, { "city": "Loma Linda", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT03126916" }, { "nct_id": "NCT02859896", "title": "Safety and Efficacy of Hectorol in Pediatric Patients With Chronic Kidney Disease Stage 3 and 4 With Secondary Hyperparathyroidism Not Yet on Dialysis", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Secondary Hyperparathyroidism-Chronic Kidney Disease" ], "interventions": [ { "name": "Doxercalciferol (GZ427397)", "type": "DRUG" }, { "name": "Calcitriol", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Sanofi", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "5 Years", "maximum_age": "18 Years", "sex": "ALL", "summary": "5 Years to 18 Years" }, "enrollment_count": 21, "start_date": "2017-01-19", "completion_date": "2025-06-11", "has_results": true, "last_update_posted_date": "2026-07-02", "last_synced_at": "2026-10-11T19:03:27.698Z", "location_count": 21, "location_summary": "Birmingham, Alabama • Los Angeles, California • Sacramento, California + 17 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Los Angeles", "state": "California" }, { "city": "Sacramento", "state": "California" }, { "city": "New Haven", "state": "Connecticut" }, { "city": "Miami", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT02859896" } ] }