{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=B12&page=5",
    "query": {
      "intervention": "B12",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 180,
    "total_pages": 18,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=B12&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=B12&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-25T12:47:48.183Z",
  "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": "NCT03437824",
      "title": "Effects of Vitamin B12 Treatment in Singers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Vitamin B 12 Deficiency"
      ],
      "interventions": [
        {
          "name": "Cyanocobalamin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 20,
      "start_date": "2017-10-01",
      "completion_date": "2019-04-01",
      "has_results": false,
      "last_update_posted_date": "2019-04-09",
      "last_synced_at": "2026-10-25T12:47:48.183Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03437824"
    },
    {
      "nct_id": "NCT06568146",
      "title": "A Single Group Study to Evaluate the Effects of a Multivitamin on a Range of Health and Wellbeing Outcomes.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Health and Wellbeing"
      ],
      "interventions": [
        {
          "name": "Multivitamin Supplement",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Love Wellness",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 40,
      "start_date": "2024-05-23",
      "completion_date": "2024-10-23",
      "has_results": false,
      "last_update_posted_date": "2024-10-29",
      "last_synced_at": "2026-10-25T12:47:48.183Z",
      "location_count": 1,
      "location_summary": "Santa Monica, California",
      "locations": [
        {
          "city": "Santa Monica",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06568146"
    },
    {
      "nct_id": "NCT06247813",
      "title": "Pilot Study: Impact of Biomarker-Guided Dietary Supplementation on Quality-of-Life Measures in Subjects With Chronic Pain",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Pain"
      ],
      "interventions": [
        {
          "name": "Inflammation Support Formula",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Nerve Health Formula",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Redox Support Formula",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Ethos Research & Development",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 75,
      "start_date": "2024-02-08",
      "completion_date": "2025-07-30",
      "has_results": false,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-10-25T12:47:48.183Z",
      "location_count": 1,
      "location_summary": "Newport, Kentucky",
      "locations": [
        {
          "city": "Newport",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06247813"
    },
    {
      "nct_id": "NCT05387746",
      "title": "Integrative Self-care Approaches for HCP Wellbeing",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Burnout, Professional"
      ],
      "interventions": [
        {
          "name": "Caring Science, Mindful Practice and Reiki Training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Cedars-Sinai Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 30,
      "start_date": "2022-09-01",
      "completion_date": "2024-08-18",
      "has_results": false,
      "last_update_posted_date": "2024-08-21",
      "last_synced_at": "2026-10-25T12:47:48.183Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05387746"
    },
    {
      "nct_id": "NCT02727920",
      "title": "Effects of Energy Drinks",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Energy Drinks"
      ],
      "interventions": [
        {
          "name": "Energy drink",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Johns Hopkins Bloomberg School of Public Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 228,
      "start_date": "2016-04-02",
      "completion_date": "2016-07",
      "has_results": false,
      "last_update_posted_date": "2018-04-03",
      "last_synced_at": "2026-10-25T12:47:48.183Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02727920"
    },
    {
      "nct_id": "NCT04205786",
      "title": "Vitamin B12 for Aromatase Inhibitors Associated Musculoskeletal Symptoms in Breast Cancer",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HR-positive Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Vitamin B12",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Blood collection",
          "type": "OTHER"
        },
        {
          "name": "Brief Pain Inventory - Short Form survey",
          "type": "OTHER"
        },
        {
          "name": "FACT-ES Trial Outcome Index (Version 4)",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire to Assess Adherence to Aromatase Inhibitors",
          "type": "OTHER"
        },
        {
          "name": "Demographics Questionnaire",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Case Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "19 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2021-08-12",
      "completion_date": "2025-12-01",
      "has_results": false,
      "last_update_posted_date": "2024-08-21",
      "last_synced_at": "2026-10-25T12:47:48.183Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04205786"
    },
    {
      "nct_id": "NCT00056225",
      "title": "VITAL - VITamins to Slow ALzheimer's Disease (Homocysteine Study)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Alzheimer's Disease"
      ],
      "interventions": [
        {
          "name": "Folate",
          "type": "DRUG"
        },
        {
          "name": "Vitamin B6",
          "type": "DRUG"
        },
        {
          "name": "Vitamin B12",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute on Aging (NIA)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "55 Years and older"
      },
      "enrollment_count": 340,
      "start_date": "2003-01",
      "completion_date": "2007-06",
      "has_results": false,
      "last_update_posted_date": "2009-06-12",
      "last_synced_at": "2026-10-25T12:47:48.183Z",
      "location_count": 38,
      "location_summary": "Birmingham, Alabama • Scottsdale, Arizona • Sun City, Arizona + 29 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Sun City",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Irvine",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00056225"
    },
    {
      "nct_id": "NCT01062958",
      "title": "A Retrospective Analysis of Neevo®/Neevo®DHA Compared to a Standard Prenatal Vitamin in Anemia During Pregnancy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Anemia in Pregnancy",
        "Preeclampsia"
      ],
      "interventions": [
        {
          "name": "Neevo® (a medical food)",
          "type": "OTHER"
        },
        {
          "name": "Prenatal vitamins (≤1mg folic acid, 27 - 35mg iron, and ≤12mcg vitamin B12)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Pamlab, Inc.",
      "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": 100,
      "start_date": "2009-12",
      "completion_date": "2010-02",
      "has_results": false,
      "last_update_posted_date": "2013-04-16",
      "last_synced_at": "2026-10-25T12:47:48.183Z",
      "location_count": 3,
      "location_summary": "Sheffield, Alabama • Flowood, Mississippi • Gainesville, Texas",
      "locations": [
        {
          "city": "Sheffield",
          "state": "Alabama"
        },
        {
          "city": "Flowood",
          "state": "Mississippi"
        },
        {
          "city": "Gainesville",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01062958"
    },
    {
      "nct_id": "NCT00853879",
      "title": "An Exploratory, Randomized, Blinded, Placebo-Controlled Trial of Folic Acid and L-methylfolate in Parkinson's Disease",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "Folic Acid, Vitamin B6, Vitamin B12",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "B6, B12, L-methylfolate",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "B6, B12, Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Northwell Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2006-12",
      "completion_date": "2010-06",
      "has_results": false,
      "last_update_posted_date": "2015-05-15",
      "last_synced_at": "2026-10-25T12:47:48.183Z",
      "location_count": 1,
      "location_summary": "Manhasset, New York",
      "locations": [
        {
          "city": "Manhasset",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00853879"
    },
    {
      "nct_id": "NCT01238926",
      "title": "Vitamin B6, B12, Folic Acid and Exercise in Parkinson's Disease",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "PD vitamin supplementation",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "PD exercise intervention",
          "type": "OTHER"
        },
        {
          "name": "PD vitamin + exercise",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "New York Institute of Technology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "50 Years to 80 Years"
      },
      "enrollment_count": 40,
      "start_date": "2008-05",
      "completion_date": "2010-11",
      "has_results": false,
      "last_update_posted_date": "2010-11-11",
      "last_synced_at": "2026-10-25T12:47:48.183Z",
      "location_count": 1,
      "location_summary": "Old Westbury, New York",
      "locations": [
        {
          "city": "Old Westbury",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01238926"
    }
  ]
}