{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Vaginal+Suppository+Progesterone",
    "query": {
      "intervention": "Vaginal Suppository Progesterone"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 16,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Vaginal+Suppository+Progesterone&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-15T02:11:07.296Z",
  "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": "NCT00579553",
      "title": "Comparing IM vs. Vaginal Progesterone for Pre-term Birth",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Infant, Premature",
        "Premature Birth"
      ],
      "interventions": [
        {
          "name": "Intramuscular Progesterone",
          "type": "DRUG"
        },
        {
          "name": "Vaginal Progesterone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Oklahoma",
      "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": 174,
      "start_date": "2006-10",
      "completion_date": "2011-05",
      "has_results": true,
      "last_update_posted_date": "2021-05-19",
      "last_synced_at": "2026-09-15T02:11:07.296Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00579553"
    },
    {
      "nct_id": "NCT01840228",
      "title": "Vaginal Progesterone for the Prevention of Preterm Birth in Women With Arrested Preterm Labor",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Premature Birth",
        "Obstetric Labor, Premature"
      ],
      "interventions": [
        {
          "name": "Micronized progesterone suppository",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 38,
      "start_date": "2013-05",
      "completion_date": "2018-05-07",
      "has_results": true,
      "last_update_posted_date": "2019-06-18",
      "last_synced_at": "2026-09-15T02:11:07.296Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01840228"
    },
    {
      "nct_id": "NCT01954095",
      "title": "The Impact of Vaginal and IM Progestins on the Cervix",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Preterm Birth",
        "Short Cervical Length"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 89,
      "start_date": "2013-08",
      "completion_date": "2015-03",
      "has_results": false,
      "last_update_posted_date": "2015-12-02",
      "last_synced_at": "2026-09-15T02:11:07.296Z",
      "location_count": 4,
      "location_summary": "Indianapolis, Indiana • Pittsburgh, Pennsylvania • Galveston, Texas + 1 more",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Galveston",
          "state": "Texas"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01954095"
    },
    {
      "nct_id": "NCT03251729",
      "title": "Cerclage On LOw Risk Singletons: Cervical Cerclage for Prevention of Spontaneous Preterm Birth in Low Risk Singleton Pregnancies With Short Cervix",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Premature Birth"
      ],
      "interventions": [
        {
          "name": "Cervical cerclage",
          "type": "PROCEDURE"
        },
        {
          "name": "Vaginal progesterone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 93,
      "start_date": "2017-09-22",
      "completion_date": "2024-02-20",
      "has_results": false,
      "last_update_posted_date": "2024-04-19",
      "last_synced_at": "2026-09-15T02:11:07.296Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03251729"
    },
    {
      "nct_id": "NCT06036446",
      "title": "LATe Cerclage in High-risk Pregnancies (LATCH)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Premature Birth"
      ],
      "interventions": [
        {
          "name": "Cervical cerclage",
          "type": "PROCEDURE"
        },
        {
          "name": "Vaginal Suppository Progesterone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 329,
      "start_date": "2023-11-10",
      "completion_date": "2029-02",
      "has_results": false,
      "last_update_posted_date": "2026-05-29",
      "last_synced_at": "2026-09-15T02:11:07.296Z",
      "location_count": 2,
      "location_summary": "Charlotte, North Carolina • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06036446"
    },
    {
      "nct_id": "NCT00001259",
      "title": "A Treatment Study for Premenstrual Syndrome (PMS)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Premenstrual Syndrome",
        "Menstruation Disturbances"
      ],
      "interventions": [
        {
          "name": "Leuprolide",
          "type": "DRUG"
        },
        {
          "name": "Estradiol Patches",
          "type": "DRUG"
        },
        {
          "name": "Progesterone",
          "type": "DRUG"
        },
        {
          "name": "Placebo patch",
          "type": "DRUG"
        },
        {
          "name": "Placebo injection",
          "type": "DRUG"
        },
        {
          "name": "Placebo suppository",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Mental Health (NIMH)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 60,
      "start_date": "1992-08-11",
      "completion_date": "2020-02-06",
      "has_results": true,
      "last_update_posted_date": "2023-03-02",
      "last_synced_at": "2026-09-15T02:11:07.296Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00001259"
    },
    {
      "nct_id": "NCT02357394",
      "title": "Cervical Pessary to Prevent Preterm Birth in Singleton Pregnancies With a Sonographically Measured Short Cervix",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Premature Birth"
      ],
      "interventions": [
        {
          "name": "Arabin Pessary",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Gene Lee, 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": 7,
      "start_date": "2015-05",
      "completion_date": "2019-04-01",
      "has_results": true,
      "last_update_posted_date": "2019-10-31",
      "last_synced_at": "2026-09-15T02:11:07.296Z",
      "location_count": 2,
      "location_summary": "Kansas City, Kansas • Charleston, South Carolina",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        },
        {
          "city": "Charleston",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02357394"
    },
    {
      "nct_id": "NCT03440359",
      "title": "Vaginal Progesterone Supplementation in Women With PCOS Undergoing Ovulation Induction With Letrozole",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Polycystic Ovary Syndrome"
      ],
      "interventions": [
        {
          "name": "Progesterone Vaginal Gel 8%",
          "type": "DRUG"
        },
        {
          "name": "Letrozole Oral Tablet",
          "type": "DRUG"
        },
        {
          "name": "pelvic ultrasound",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Ovidrel 250 MCG Per 0.5 ML Prefilled Syringe",
          "type": "DRUG"
        },
        {
          "name": "Intrauterine insemination or timed intercourse",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIAGNOSTIC_TEST",
        "OTHER"
      ],
      "sponsor": "Eastern Virginia Medical School",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "20 Years to 40 Years · Female only"
      },
      "enrollment_count": 52,
      "start_date": "2012-07-06",
      "completion_date": "2017-12-30",
      "has_results": false,
      "last_update_posted_date": "2018-02-26",
      "last_synced_at": "2026-09-15T02:11:07.296Z",
      "location_count": 1,
      "location_summary": "Norfolk, Virginia",
      "locations": [
        {
          "city": "Norfolk",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03440359"
    },
    {
      "nct_id": "NCT01546454",
      "title": "Relationship Between the Menstrual Cycle and Heart Disease in Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Coronary Heart Disease"
      ],
      "interventions": [
        {
          "name": "Ethinyl Estradiol-Levonorgestrel combination",
          "type": "DRUG"
        },
        {
          "name": "leuprolide acetate",
          "type": "DRUG"
        },
        {
          "name": "Estradiol",
          "type": "DRUG"
        },
        {
          "name": "Progesterone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 40 Years · Female only"
      },
      "enrollment_count": 5,
      "start_date": "2012-02",
      "completion_date": "2013-01",
      "has_results": true,
      "last_update_posted_date": "2017-03-22",
      "last_synced_at": "2026-09-15T02:11:07.296Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01546454"
    },
    {
      "nct_id": "NCT02901626",
      "title": "A Randomized Trial of Pessary in Singleton Pregnancies With a Short Cervix",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Short Cervix",
        "Preterm Delivery"
      ],
      "interventions": [
        {
          "name": "Arabin Cervical Pessary",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "The George Washington University Biostatistics Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 544,
      "start_date": "2017-02-14",
      "completion_date": "2022-05-10",
      "has_results": true,
      "last_update_posted_date": "2026-06-23",
      "last_synced_at": "2026-09-15T02:11:07.296Z",
      "location_count": 12,
      "location_summary": "Birmingham, Alabama • Chicago, Illinois • New York, New York + 9 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02901626"
    }
  ]
}