{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Vitamin+B12+and+folic+acid",
    "query": {
      "intervention": "Vitamin B12 and folic acid"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 82,
    "total_pages": 9,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Vitamin+B12+and+folic+acid&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-06T03:31:41.395Z",
  "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": "NCT00064753",
      "title": "Folic Acid for Vascular Outcome Reduction In Transplantation (FAVORIT)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Chronic Kidney Disease",
        "Cardiovascular Disease",
        "Death"
      ],
      "interventions": [
        {
          "name": "High Dose Multivitamin",
          "type": "DRUG"
        },
        {
          "name": "Low Dose Multivitamin",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "35 Years to 75 Years"
      },
      "enrollment_count": 4110,
      "start_date": "2002-05",
      "completion_date": "2011-10",
      "has_results": true,
      "last_update_posted_date": "2017-10-18",
      "last_synced_at": "2026-10-06T03:31:41.395Z",
      "location_count": 27,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 22 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00064753"
    },
    {
      "nct_id": "NCT06794645",
      "title": "Pembrolizumab and Pemetrexed for Progressive Chordoma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chordomas",
        "Chordoma"
      ],
      "interventions": [
        {
          "name": "Pembrolizumab",
          "type": "DRUG"
        },
        {
          "name": "Pemetrexed Phase 2",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Saint John's Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 21,
      "start_date": "2025-01",
      "completion_date": "2026-11-30",
      "has_results": false,
      "last_update_posted_date": "2025-01-27",
      "last_synced_at": "2026-10-06T03:31:41.395Z",
      "location_count": 1,
      "location_summary": "Santa Monica, California",
      "locations": [
        {
          "city": "Santa Monica",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06794645"
    },
    {
      "nct_id": "NCT00197743",
      "title": "Trial of Vitamins in HIV Progression and Transmission",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "HIV Infections",
        "Disease Transmission, Vertical"
      ],
      "interventions": [
        {
          "name": "Vitamin A + Beta Carotene",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Multivitamins",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Harvard School of Public Health (HSPH)",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 1085,
      "start_date": "1995-04",
      "completion_date": "2003-08",
      "has_results": false,
      "last_update_posted_date": "2010-11-11",
      "last_synced_at": "2026-10-06T03:31:41.395Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00197743"
    },
    {
      "nct_id": "NCT01188876",
      "title": "Carboplatin/Pralatrexate in Recurrent Platinum-Sensitive Ovarian, Fallopian or Primary Peritoneal Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Ovarian Cancer",
        "Fallopian Tube Cancer",
        "Peritoneal Cancer"
      ],
      "interventions": [
        {
          "name": "carboplatin",
          "type": "DRUG"
        },
        {
          "name": "pralatrexate",
          "type": "DRUG"
        },
        {
          "name": "Folic Acid",
          "type": "DRUG"
        },
        {
          "name": "Vitamin B12 Injection",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 50,
      "start_date": "2010-08",
      "completion_date": "2017-07",
      "has_results": true,
      "last_update_posted_date": "2018-01-19",
      "last_synced_at": "2026-10-06T03:31:41.395Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01188876"
    },
    {
      "nct_id": "NCT01320527",
      "title": "A Clinical Trial of a Vitamin/Nutriceutical Formulation for Alzheimer's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Alzheimer's Disease",
        "Mild Cognitive Impairment"
      ],
      "interventions": [
        {
          "name": "Nutriceutical formulation",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "University of Massachusetts, Worcester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 135,
      "start_date": "2008-08",
      "completion_date": "2012-04",
      "has_results": false,
      "last_update_posted_date": "2016-03-03",
      "last_synced_at": "2026-10-06T03:31:41.395Z",
      "location_count": 8,
      "location_summary": "Naples, Florida • Baltimore, Maryland • Ayer, Massachusetts + 5 more",
      "locations": [
        {
          "city": "Naples",
          "state": "Florida"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Ayer",
          "state": "Massachusetts"
        },
        {
          "city": "Groton",
          "state": "Massachusetts"
        },
        {
          "city": "Lawrence",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01320527"
    },
    {
      "nct_id": "NCT01134341",
      "title": "Pralatrexate and Bexarotene in Patients With Relapsed or Refractory Cutaneous T-cell Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cutaneous T-cell Lymphoma",
        "Mycosis Fungoides",
        "Sezary Syndrome",
        "Primary Cutaneous Anaplastic Large Cell Lymphoma"
      ],
      "interventions": [
        {
          "name": "Pralatrexate Injection",
          "type": "DRUG"
        },
        {
          "name": "Bexarotene Capsules",
          "type": "DRUG"
        },
        {
          "name": "Vitamin B12",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Folic Acid",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Acrotech Biopharma Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 34,
      "start_date": "2010-03",
      "completion_date": "2015-08",
      "has_results": false,
      "last_update_posted_date": "2019-12-18",
      "last_synced_at": "2026-10-06T03:31:41.395Z",
      "location_count": 4,
      "location_summary": "Stanford, California • New York, New York • Pittsburgh, Pennsylvania + 1 more",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01134341"
    },
    {
      "nct_id": "NCT01118624",
      "title": "Study of Pralatrexate in Female Patients With Previously-treated Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer",
        "Breast Tumors",
        "Neoplasms, Breast",
        "Cancer of the Breast",
        "Human Mammary Carcinoma"
      ],
      "interventions": [
        {
          "name": "Pralatrexate Injection",
          "type": "DRUG"
        },
        {
          "name": "Vitamin B12",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Folic Acid",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Acrotech Biopharma Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 22,
      "start_date": "2010-03",
      "completion_date": "2012-07",
      "has_results": true,
      "last_update_posted_date": "2020-01-07",
      "last_synced_at": "2026-10-06T03:31:41.395Z",
      "location_count": 2,
      "location_summary": "Portland, Oregon • Memphis, Tennessee",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01118624"
    },
    {
      "nct_id": "NCT04265534",
      "title": "KEAPSAKE: A Study of Telaglenastat (CB-839) With Standard-of-Care Chemoimmunotherapy in 1L KEAP1/NRF2-Mutated, Nonsquamous NSCLC",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Non-Small Cell Lung Cancer",
        "Non-squamous Non-small-cell Lung Cancer",
        "Non-Squamous Non-Small Cell Neoplasm of Lung",
        "KEAP1 Gene Mutation",
        "NRF2 Gene Mutation",
        "NFE2L2 Gene Mutation"
      ],
      "interventions": [
        {
          "name": "Telaglenastat",
          "type": "DRUG"
        },
        {
          "name": "Carboplatin Chemotherapy",
          "type": "DRUG"
        },
        {
          "name": "Pemetrexed Chemotherapy",
          "type": "DRUG"
        },
        {
          "name": "Pembrolizumab Immunotherapy",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Folic acid 400 -1000 μg",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Vitamin B12 1000 μg",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Dexamethasone 4 mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Calithera Biosciences, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2020-07-24",
      "completion_date": "2022-02-09",
      "has_results": false,
      "last_update_posted_date": "2022-09-21",
      "last_synced_at": "2026-10-06T03:31:41.395Z",
      "location_count": 102,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Yuma, Arizona + 86 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Yuma",
          "state": "Arizona"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Fullerton",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04265534"
    },
    {
      "nct_id": "NCT00193414",
      "title": "Pemetrexed and Gemcitabine in Patients With Advanced Non-Small Cell Lung Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lung Cancer"
      ],
      "interventions": [
        {
          "name": "Pemetrexed",
          "type": "DRUG"
        },
        {
          "name": "Gemcitabine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "SCRI Development Innovations, LLC",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 72,
      "start_date": "2005-05",
      "completion_date": "2009-08",
      "has_results": true,
      "last_update_posted_date": "2022-03-03",
      "last_synced_at": "2026-10-06T03:31:41.395Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00193414"
    },
    {
      "nct_id": "NCT00054938",
      "title": "Prevention of Atherosclerosis and Heart Disease in Patients With Systemic Lupus Erythematosis (SLE)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Systemic Lupus Erythematosus",
        "Lupus"
      ],
      "interventions": [
        {
          "name": "pravastatin",
          "type": "DRUG"
        },
        {
          "name": "aspirin",
          "type": "DRUG"
        },
        {
          "name": "ramipril",
          "type": "DRUG"
        },
        {
          "name": "Vitamins: B6, B12, and folate",
          "type": "DRUG"
        },
        {
          "name": "heart health educational program",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2003-03",
      "completion_date": "2005-12",
      "has_results": false,
      "last_update_posted_date": "2013-12-24",
      "last_synced_at": "2026-10-06T03:31:41.395Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00054938"
    }
  ]
}