{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=17-Hydroxyprogesterone+Caproate",
    "query": {
      "intervention": "17-Hydroxyprogesterone Caproate"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 23,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=17-Hydroxyprogesterone+Caproate&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-08T23:39:19.531Z",
  "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": "NCT02940522",
      "title": "Comparing Bioavailability When Preservative-free Makena® (Hydroxyprogesterone Caproate Injection, 250 mg/mL) is Administered as an Intramuscular Manual Injection or as a Subcutaneous Injection Using an Auto-injector in Healthy Post-menopausal Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Comparing Bioavailability When Makena® is Administered in Healthy Post-menopausal Women"
      ],
      "interventions": [
        {
          "name": "Makena® (Hydroxyprogesterone Caproate Injection, 250 mg/mL)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AMAG Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "75 Years",
        "sex": "FEMALE",
        "summary": "50 Years to 75 Years · Female only"
      },
      "enrollment_count": 122,
      "start_date": "2016-09",
      "completion_date": "2017-03",
      "has_results": true,
      "last_update_posted_date": "2022-04-28",
      "last_synced_at": "2026-09-08T23:39:19.531Z",
      "location_count": 5,
      "location_summary": "Anaheim, California • DeLand, Florida • Miami, Florida + 2 more",
      "locations": [
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "DeLand",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02940522"
    },
    {
      "nct_id": "NCT02937766",
      "title": "Study Assessing Injection Pain of Makena® (Hydroxyprogesterone Caproate Injection, 250 mg/mL) When Administered Via Subcutaneous Auto-injector vs Intramuscular Injection Via Needle and Syringe in Healthy Post-menopausal Women",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Assessing Injection Pain of Makena® (Hydroxyprogesterone Caproate Injection, 250 mg/mL) in Healthy Post-menopausal Women"
      ],
      "interventions": [
        {
          "name": "Makena® (Hydroxyprogesterone Caproate Injection, 250 mg/mL)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AMAG Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "75 Years",
        "sex": "FEMALE",
        "summary": "50 Years to 75 Years · Female only"
      },
      "enrollment_count": 60,
      "start_date": "2016-10-07",
      "completion_date": "2017-03-27",
      "has_results": true,
      "last_update_posted_date": "2022-04-21",
      "last_synced_at": "2026-09-08T23:39:19.531Z",
      "location_count": 1,
      "location_summary": "Pasadena, California",
      "locations": [
        {
          "city": "Pasadena",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02937766"
    },
    {
      "nct_id": "NCT00457886",
      "title": "Measurement of Hormone Levels in Patients Receiving 17-HPC for Preterm Delivery",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Preterm Delivery"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Georgetown University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 20,
      "start_date": "2005-07",
      "completion_date": "2007-06",
      "has_results": false,
      "last_update_posted_date": "2017-03-09",
      "last_synced_at": "2026-09-08T23:39:19.531Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00457886"
    },
    {
      "nct_id": "NCT02173210",
      "title": "Precision Medicine for Preterm Birth",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Premature Birth"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 380,
      "start_date": "2014-06-25",
      "completion_date": "2017-12-27",
      "has_results": false,
      "last_update_posted_date": "2018-05-02",
      "last_synced_at": "2026-09-08T23:39:19.531Z",
      "location_count": 2,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02173210"
    },
    {
      "nct_id": "NCT00156000",
      "title": "fFN & E3 in the Prediction of PTB in Women With Twin Pregnancies Receiving 17OHP or Placebo",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Preterm Delivery",
        "Preterm Birth"
      ],
      "interventions": [
        {
          "name": "Fetal Fibronectin",
          "type": "DEVICE"
        },
        {
          "name": "Salivary Estriol",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Obstetrix Medical Group",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 60 Years · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2005-08",
      "completion_date": "2006-02",
      "has_results": false,
      "last_update_posted_date": "2014-12-19",
      "last_synced_at": "2026-09-08T23:39:19.531Z",
      "location_count": 2,
      "location_summary": "Mesa, Arizona • Phoenix, Arizona",
      "locations": [
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00156000"
    },
    {
      "nct_id": "NCT02913495",
      "title": "Vaginal Versus Intramuscular Progesterone for the Prevention of Recurrent Preterm Birth",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Premature Birth"
      ],
      "interventions": [
        {
          "name": "Vaginal Progesterone",
          "type": "DRUG"
        },
        {
          "name": "Intramuscular Progesterone (17 alpha hydroxprogesterone caproate)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 210,
      "start_date": "2016-09",
      "completion_date": "2021-09",
      "has_results": true,
      "last_update_posted_date": "2026-02-24",
      "last_synced_at": "2026-09-08T23:39:19.531Z",
      "location_count": 3,
      "location_summary": "Washington D.C., District of Columbia • Springfield, Massachusetts • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Springfield",
          "state": "Massachusetts"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02913495"
    },
    {
      "nct_id": "NCT03292731",
      "title": "Relationship Between Plasma Concentration of Hydroxyprogesterone Caproate (17-OHPC) and Preterm Birth",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Preterm Birth"
      ],
      "interventions": [
        {
          "name": "17-Hydroxyprogesterone caproate 250mg or 500 mg.",
          "type": "DRUG"
        },
        {
          "name": "Safety study of 500 mg dose.",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Steve N. Caritis, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 159,
      "start_date": "2018-02-12",
      "completion_date": "2021-09-02",
      "has_results": true,
      "last_update_posted_date": "2023-10-23",
      "last_synced_at": "2026-09-08T23:39:19.531Z",
      "location_count": 5,
      "location_summary": "Chicago, Illinois • Pittsburgh, Pennsylvania • Galveston, Texas + 2 more",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Galveston",
          "state": "Texas"
        },
        {
          "city": "Houston",
          "state": "Texas"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03292731"
    },
    {
      "nct_id": "NCT01899846",
      "title": "Pharmacokinetic Study of Makena® (Hydroxyprogesterone Caproate Injection, 250 mg/mL) and Its Metabolites in Blood",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Pregnancy"
      ],
      "interventions": [
        {
          "name": "Hydroxyprogesterone caproate 250 mg/ml",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Lumara Health, 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": 30,
      "start_date": "2013-07",
      "completion_date": "2014-08",
      "has_results": false,
      "last_update_posted_date": "2014-08-18",
      "last_synced_at": "2026-09-08T23:39:19.531Z",
      "location_count": 6,
      "location_summary": "Lake Worth, Florida • Idaho Falls, Idaho • Chicago, Illinois + 3 more",
      "locations": [
        {
          "city": "Lake Worth",
          "state": "Florida"
        },
        {
          "city": "Idaho Falls",
          "state": "Idaho"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01899846"
    },
    {
      "nct_id": "NCT04183452",
      "title": "17-OHPC in Pregnancy: IM vs SC Routes",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Preterm Birth"
      ],
      "interventions": [
        {
          "name": "17-Hydroxyprogesterone Caproate 250 mg IM Dose",
          "type": "DRUG"
        },
        {
          "name": "17-Hydroxyprogesterone Caproate 275 mg SC Dose",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Steve N. Caritis, MD",
      "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": 24,
      "start_date": "2020-06-16",
      "completion_date": "2023-04-06",
      "has_results": false,
      "last_update_posted_date": "2023-08-03",
      "last_synced_at": "2026-09-08T23:39:19.531Z",
      "location_count": 4,
      "location_summary": "Newark, Delaware • Durham, North Carolina • Winston-Salem, North Carolina + 1 more",
      "locations": [
        {
          "city": "Newark",
          "state": "Delaware"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04183452"
    },
    {
      "nct_id": "NCT00694967",
      "title": "A Randomized Trial of Cerclage Versus 17 α-Hydroxyprogesterone Caproate for Treatment of a Short Cervix",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Mid Trimester Cervical Shortening"
      ],
      "interventions": [
        {
          "name": "McDonald cerclage placement",
          "type": "PROCEDURE"
        },
        {
          "name": "17 hydroxyprogesterone caproate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Lehigh Valley Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 92,
      "start_date": "2003-11",
      "completion_date": "2006-12",
      "has_results": false,
      "last_update_posted_date": "2008-06-11",
      "last_synced_at": "2026-09-08T23:39:19.531Z",
      "location_count": 1,
      "location_summary": "Allentown, Pennsylvania",
      "locations": [
        {
          "city": "Allentown",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00694967"
    }
  ]
}