{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=vitamin+B12&page=5", "query": { "intervention": "vitamin B12", "page": 5 }, "page_size": 10 }, "pagination": { "page": 5, "page_size": 10, "total_count": 167, "total_pages": 17, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=vitamin+B12&page=6&page_size=10", "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=vitamin+B12&page=4&page_size=10" }, "source": "remote", "last_synced_at": "2026-10-08T18:25:22.439Z", "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": "NCT01183065", "title": "Study of Pralatrexate With Vitamin B12 and Folic Acid Supplementation for Previously Treated Recurrent or Metastatic Head and Neck Squamous Cell Cancer (HNSCC)", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Head and Neck Cancer" ], "interventions": [ { "name": "Pralatrexate With Vitamin B12 and Folic Acid", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Memorial Sloan Kettering Cancer Center", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 13, "start_date": "2010-08", "completion_date": "2014-04", "has_results": true, "last_update_posted_date": "2015-11-20", "last_synced_at": "2026-10-08T18:25:22.439Z", "location_count": 5, "location_summary": "Basking Ridge, New Jersey • Commack, New York • New York, New York + 2 more", "locations": [ { "city": "Basking Ridge", "state": "New Jersey" }, { "city": "Commack", "state": "New York" }, { "city": "New York", "state": "New York" }, { "city": "Rockville Centre", "state": "New York" }, { "city": "Sleepy Hollow", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT01183065" }, { "nct_id": "NCT00208611", "title": "Vitamin B12 Status and Response to Vitamin B12 Supplementation in Patients With Parkinson's Disease", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2", "PHASE3" ], "conditions": [ "Parkinson's Disease" ], "interventions": [ { "name": "Vitamin B12 Supplementation", "type": "DIETARY_SUPPLEMENT" } ], "intervention_types": [ "DIETARY_SUPPLEMENT" ], "sponsor": "Emory University", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "21 Years", "maximum_age": null, "sex": "ALL", "summary": "21 Years and older" }, "enrollment_count": 57, "start_date": "2006-09", "completion_date": "2010-02", "has_results": false, "last_update_posted_date": "2014-12-18", "last_synced_at": "2026-10-08T18:25:22.439Z", "location_count": 1, "location_summary": "Atlanta, Georgia", "locations": [ { "city": "Atlanta", "state": "Georgia" } ], "official_url": "https://clinicaltrials.gov/study/NCT00208611" }, { "nct_id": "NCT01193192", "title": "A Retrospective Analysis of Neevo® and NeevoDHA® Compared to a Standard Prenatal Vitamin in Anemia During Pregnancy", "overall_status": "TERMINATED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Anemia in Pregnancy", "Pre-eclampsia" ], "interventions": [ { "name": "Neevo®", "type": "OTHER" }, { "name": "Prenatal vitamins", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "Pamlab, L.L.C.", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "21 Years", "maximum_age": "39 Years", "sex": "FEMALE", "summary": "21 Years to 39 Years · Female only" }, "enrollment_count": 30, "start_date": "2010-07", "completion_date": "2010-11", "has_results": false, "last_update_posted_date": "2011-11-23", "last_synced_at": "2026-10-08T18:25:22.439Z", "location_count": 3, "location_summary": "Chickasha, Oklahoma • Norman, Oklahoma", "locations": [ { "city": "Chickasha", "state": "Oklahoma" }, { "city": "Norman", "state": "Oklahoma" }, { "city": "Norman", "state": "Oklahoma" } ], "official_url": "https://clinicaltrials.gov/study/NCT01193192" }, { "nct_id": "NCT00667498", "title": "Metabolic Effect of Metformin in Obese Insulin Resistant Adolescents With Normal Glucose Tolerance", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Pediatric Obesity", "Insulin Resistance", "Hyperinsulinemia" ], "interventions": [ { "name": "Metformin", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Yale University", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "13 Years", "maximum_age": "17 Years", "sex": "ALL", "summary": "13 Years to 17 Years" }, "enrollment_count": 28, "start_date": "2004-03", "completion_date": "2007-12", "has_results": false, "last_update_posted_date": "2009-02-18", "last_synced_at": "2026-10-08T18:25:22.439Z", "location_count": 1, "location_summary": "New Haven, Connecticut", "locations": [ { "city": "New Haven", "state": "Connecticut" } ], "official_url": "https://clinicaltrials.gov/study/NCT00667498" }, { "nct_id": "NCT06023082", "title": "A Single-Group Study to Examine the Efficacy of a Gut Health Supplement to Increase Metabolism, Improve Gut Health, and Support Weight Management", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Gut Health", "Metabolism", "Weight Loss", "Energy" ], "interventions": [ { "name": "Colon Broom Premium supplement", "type": "DIETARY_SUPPLEMENT" } ], "intervention_types": [ "DIETARY_SUPPLEMENT" ], "sponsor": "Gut Health, UAB", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "30 Years", "maximum_age": "50 Years", "sex": "ALL", "summary": "30 Years to 50 Years" }, "enrollment_count": 120, "start_date": "2023-07-26", "completion_date": "2023-11-26", "has_results": true, "last_update_posted_date": "2025-01-13", "last_synced_at": "2026-10-08T18:25:22.439Z", "location_count": 1, "location_summary": "Santa Monica, California", "locations": [ { "city": "Santa Monica", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT06023082" }, { "nct_id": "NCT01672372", "title": "The Effect of Methylated Vitamin B Complex on Depression", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Depression" ], "interventions": [ { "name": "Max Stress B", "type": "DIETARY_SUPPLEMENT" }, { "name": "Placebo Max Stress B", "type": "DIETARY_SUPPLEMENT" } ], "intervention_types": [ "DIETARY_SUPPLEMENT" ], "sponsor": "University of Miami", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 60, "start_date": "2011-01", "completion_date": "2011-10", "has_results": false, "last_update_posted_date": "2014-08-06", "last_synced_at": "2026-10-08T18:25:22.439Z", "location_count": 1, "location_summary": "Miami, Florida", "locations": [ { "city": "Miami", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT01672372" }, { "nct_id": "NCT00227019", "title": "Phase 2 Trial of Bevacizumab in Combination With Pemetrexed", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Non-small Cell Lung Cancer (NSCLC)", "Lung Cancer", "Neoplasm Metastasis" ], "interventions": [ { "name": "Bevacizumab", "type": "DRUG" }, { "name": "Pemetrexed", "type": "DRUG" }, { "name": "Vitamin B12", "type": "DRUG" }, { "name": "Folate", "type": "DRUG" }, { "name": "Dexamethasone", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Heather Wakelee", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 16, "start_date": "2006-03", "completion_date": "2016-12", "has_results": true, "last_update_posted_date": "2017-03-06", "last_synced_at": "2026-10-08T18:25:22.439Z", "location_count": 4, "location_summary": "Stanford, California • Lebanon, New Hampshire • Voorhees Township, New Jersey + 1 more", "locations": [ { "city": "Stanford", "state": "California" }, { "city": "Lebanon", "state": "New Hampshire" }, { "city": "Voorhees Township", "state": "New Jersey" }, { "city": "Chapel Hill", "state": "North Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT00227019" }, { "nct_id": "NCT07821372", "title": "A Plant-Based Diet in the Treatment of Coronary Microvascular Dysfunction", "overall_status": "NOT_YET_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Coronary Microvascular Dysfunction" ], "interventions": [ { "name": "Polyphenol-Rich Plant-Based Diet", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "Emory University", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "45 Years", "maximum_age": null, "sex": "ALL", "summary": "45 Years and older" }, "enrollment_count": 20, "start_date": "2026-10", "completion_date": "2028-01", "has_results": false, "last_update_posted_date": "2026-09-15", "last_synced_at": "2026-10-08T18:25:22.439Z", "location_count": 1, "location_summary": "Atlanta, Georgia", "locations": [ { "city": "Atlanta", "state": "Georgia" } ], "official_url": "https://clinicaltrials.gov/study/NCT07821372" }, { "nct_id": "NCT06911073", "title": "A Study to Evaluate a Postbiotic in Supporting Weight Loss and Metabolic Health", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Obesity and Overweight" ], "interventions": [ { "name": "Postbiotic", "type": "DIETARY_SUPPLEMENT" }, { "name": "Placebo", "type": "DIETARY_SUPPLEMENT" } ], "intervention_types": [ "DIETARY_SUPPLEMENT" ], "sponsor": "ResBiotic Nutrition, Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "65 Years", "sex": "ALL", "summary": "18 Years to 65 Years" }, "enrollment_count": 80, "start_date": "2025-05-02", "completion_date": "2026-03-01", "has_results": false, "last_update_posted_date": "2026-08-14", "last_synced_at": "2026-10-08T18:25:22.439Z", "location_count": 1, "location_summary": "Birmingham, Alabama", "locations": [ { "city": "Birmingham", "state": "Alabama" } ], "official_url": "https://clinicaltrials.gov/study/NCT06911073" }, { "nct_id": "NCT05096663", "title": "Testing the Use of Combination Immunotherapy Treatment (N-803 [ALT-803] Plus Pembrolizumab) Against the Usual Treatment for Advanced Non-small Cell Lung Cancer (A Lung-MAP Treatment Trial)", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2", "PHASE3" ], "conditions": [ "Advanced Lung Non-Small Cell Carcinoma", "Recurrent Lung Non-Small Cell Carcinoma", "Stage III Lung Cancer AJCC v8", "Stage IIIA Lung Cancer AJCC v8", "Stage IIIB Lung Cancer AJCC v8", "Stage IIIC Lung Cancer AJCC v8", "Stage IV Lung Cancer AJCC v8", "Stage IVA Lung Cancer AJCC v8", "Stage IVB Lung Cancer AJCC v8" ], "interventions": [ { "name": "Cobalamin", "type": "DIETARY_SUPPLEMENT" }, { "name": "Dexamethasone", "type": "DRUG" }, { "name": "Docetaxel", "type": "DRUG" }, { "name": "Folic Acid", "type": "DIETARY_SUPPLEMENT" }, { "name": "Gemcitabine", "type": "DRUG" }, { "name": "Nogapendekin Alfa", "type": "DRUG" }, { "name": "Pembrolizumab", "type": "BIOLOGICAL" }, { "name": "Pemetrexed", "type": "DRUG" }, { "name": "Ramucirumab", "type": "BIOLOGICAL" } ], "intervention_types": [ "DIETARY_SUPPLEMENT", "DRUG", "BIOLOGICAL" ], "sponsor": "SWOG Cancer Research Network", "sponsor_class": "NETWORK", "healthy_volunteers": false, "eligibility": { "minimum_age": null, "maximum_age": null, "sex": "ALL", "summary": "Not listed" }, "enrollment_count": 82, "start_date": "2022-03-15", "completion_date": "2027-12-01", "has_results": false, "last_update_posted_date": "2026-05-18", "last_synced_at": "2026-10-08T18:25:22.439Z", "location_count": 350, "location_summary": "Birmingham, Alabama • Goodyear, Arizona • Little Rock, Arkansas + 280 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Goodyear", "state": "Arizona" }, { "city": "Little Rock", "state": "Arkansas" }, { "city": "Anaheim", "state": "California" }, { "city": "Arroyo Grande", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT05096663" } ] }