{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=nifedipine&page=2",
    "query": {
      "intervention": "nifedipine",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 61,
    "total_pages": 7,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=nifedipine&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=nifedipine&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-30T10:56:59.748Z",
  "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": "NCT00593463",
      "title": "Drug Discrimination in Methadone-Maintained Humans Study 1",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Drug Dependence"
      ],
      "interventions": [
        {
          "name": "Cycloserine",
          "type": "DRUG"
        },
        {
          "name": "Diltiazem",
          "type": "DRUG"
        },
        {
          "name": "Gabapentin",
          "type": "DRUG"
        },
        {
          "name": "Isradipine",
          "type": "DRUG"
        },
        {
          "name": "Naloxone",
          "type": "DRUG"
        },
        {
          "name": "Nifedipine",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Saline",
          "type": "DEVICE"
        },
        {
          "name": "Verapamil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "University of Arkansas",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 40,
      "start_date": "2006-09",
      "completion_date": "2010-05",
      "has_results": false,
      "last_update_posted_date": "2011-03-11",
      "last_synced_at": "2026-09-30T10:56:59.748Z",
      "location_count": 1,
      "location_summary": "Little Rock, Arkansas",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00593463"
    },
    {
      "nct_id": "NCT00712738",
      "title": "Oral Nifedipine to Treat Iron Overload",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Thalassemia",
        "Iron Overload",
        "Hemochromatosis"
      ],
      "interventions": [
        {
          "name": "Nifedipine",
          "type": "DRUG"
        },
        {
          "name": "Phlebotomy",
          "type": "PROCEDURE"
        },
        {
          "name": "Urinalysis",
          "type": "PROCEDURE"
        },
        {
          "name": "Echocardiogram",
          "type": "PROCEDURE"
        },
        {
          "name": "Electrocardiogram",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "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": 6,
      "start_date": "2008-06-20",
      "completion_date": "2010-09-22",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-09-30T10:56:59.748Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00712738"
    },
    {
      "nct_id": "NCT00733239",
      "title": "Drug Discrimination in Methadone-Maintained Humans Study 2",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Opioid Dependence"
      ],
      "interventions": [
        {
          "name": "2-4 of the drugs listed below",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Arkansas",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 15,
      "start_date": "2008-08",
      "completion_date": "2010-10",
      "has_results": false,
      "last_update_posted_date": "2012-04-18",
      "last_synced_at": "2026-09-30T10:56:59.748Z",
      "location_count": 1,
      "location_summary": "Little Rock, Arkansas",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00733239"
    },
    {
      "nct_id": "NCT00864617",
      "title": "A Relative Bioavailability Study of 60 mg Nifedipine ER Tablets Under Non-fasting Conditions",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Nifedipine Extended Release tablets 60 mg, single dose",
          "type": "DRUG"
        },
        {
          "name": "ADALAT® CC Extended Release Tablets 60 mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Actavis Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 84,
      "start_date": "2005-05",
      "completion_date": "2005-05",
      "has_results": false,
      "last_update_posted_date": "2010-08-17",
      "last_synced_at": "2026-09-30T10:56:59.748Z",
      "location_count": 1,
      "location_summary": "Fargo, North Dakota",
      "locations": [
        {
          "city": "Fargo",
          "state": "North Dakota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00864617"
    },
    {
      "nct_id": "NCT05096728",
      "title": "Nifedipine Dosing Daily vs Twice a Day for Pre-eclampsia With Severe Features (NOPPI)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Preeclampsia With Severe Features"
      ],
      "interventions": [
        {
          "name": "Nifedipine XL",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 56,
      "start_date": "2021-12-01",
      "completion_date": "2023-12-15",
      "has_results": false,
      "last_update_posted_date": "2023-12-22",
      "last_synced_at": "2026-09-30T10:56:59.748Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05096728"
    },
    {
      "nct_id": "NCT04790279",
      "title": "Amlodipine Versus Nifedipine ER for the Management of Postpartum Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hypertension in Pregnancy"
      ],
      "interventions": [
        {
          "name": "Amlodipine",
          "type": "DRUG"
        },
        {
          "name": "NIFEdipine ER",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Prisma Health-Upstate",
      "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": 175,
      "start_date": "2021-04-09",
      "completion_date": "2023-01-25",
      "has_results": true,
      "last_update_posted_date": "2024-10-28",
      "last_synced_at": "2026-09-30T10:56:59.748Z",
      "location_count": 1,
      "location_summary": "Greenville, South Carolina",
      "locations": [
        {
          "city": "Greenville",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04790279"
    },
    {
      "nct_id": "NCT04392375",
      "title": "Nifedipine XL Versus Placebo for the Treatment of Preeclampsia With Severe Features During Induction of Labor",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Preeclampsia Severe"
      ],
      "interventions": [
        {
          "name": "Nifedipine 30 MG",
          "type": "DRUG"
        },
        {
          "name": "Placebos",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 110,
      "start_date": "2020-06-09",
      "completion_date": "2022-05-10",
      "has_results": true,
      "last_update_posted_date": "2023-07-24",
      "last_synced_at": "2026-09-30T10:56:59.748Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04392375"
    },
    {
      "nct_id": "NCT05989581",
      "title": "Chronic Hypertension and Pregnancy 2 (CHAP2) Pilot Project",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hypertension in Pregnancy"
      ],
      "interventions": [
        {
          "name": "Labetalol or Nifedipine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "89 Years",
        "sex": "FEMALE",
        "summary": "14 Years to 89 Years · Female only"
      },
      "enrollment_count": 74,
      "start_date": "2024-04-24",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-11",
      "last_synced_at": "2026-09-30T10:56:59.748Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05989581"
    },
    {
      "nct_id": "NCT07746271",
      "title": "Gestational Hypertension and Preeclampsia Blood Pressure (BP) Treatment Goals Less Than 140/90 vs. Less Than 160/110 mmHg: The GOALPOST Trial",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hypertension in Pregnancy",
        "Obstetrical Complications"
      ],
      "interventions": [
        {
          "name": "Anti-hypertensive medication titrated to a BP goal of <140/90 mmHg",
          "type": "DRUG"
        },
        {
          "name": "Usual Care: Anti-hypertensive medication for BP ≥160/110 mmHg titrated to a goal of < 160/110 mmHg",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "The George Washington University Biostatistics Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "56 Years",
        "sex": "FEMALE",
        "summary": "14 Years to 56 Years · Female only"
      },
      "enrollment_count": 4120,
      "start_date": "2026-09-30",
      "completion_date": "2030-04-30",
      "has_results": false,
      "last_update_posted_date": "2026-09-18",
      "last_synced_at": "2026-09-30T10:56:59.748Z",
      "location_count": 14,
      "location_summary": "Birmingham, Alabama • San Francisco, California • Chicago, Illinois + 10 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07746271"
    },
    {
      "nct_id": "NCT01068847",
      "title": "Drug Discrimination in Methadone-Maintained Humans Study 3",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Drug Dependence"
      ],
      "interventions": [
        {
          "name": "2-4 of the drugs listed below",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Arkansas",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 9,
      "start_date": "2010-02",
      "completion_date": "2012-11",
      "has_results": false,
      "last_update_posted_date": "2013-03-07",
      "last_synced_at": "2026-09-30T10:56:59.748Z",
      "location_count": 1,
      "location_summary": "Little Rock, Arkansas",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01068847"
    }
  ]
}