{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=HEC+placebo+gel",
    "query": {
      "intervention": "HEC placebo gel"
    },
    "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=HEC+placebo+gel&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-26T22:26:04.961Z",
  "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": "NCT01575405",
      "title": "A Study to Compare Three Different Formulations of Tenofovir 1% Gel When Administered Rectally",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HIV Prevention"
      ],
      "interventions": [
        {
          "name": "Rectal formulation (RF) of tenofovir 1% gel",
          "type": "DRUG"
        },
        {
          "name": "Vaginal formulations (original VF and reduced vaginal glycerin formulation RGVF) of tenofovir 1% gel",
          "type": "DRUG"
        },
        {
          "name": "Universal HEC Placebo Gel Formulation",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ian McGowan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 13,
      "start_date": "2013-03",
      "completion_date": "2013-11",
      "has_results": false,
      "last_update_posted_date": "2013-11-07",
      "last_synced_at": "2026-09-26T22:26:04.961Z",
      "location_count": 2,
      "location_summary": "Los Angeles, California • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01575405"
    },
    {
      "nct_id": "NCT02462954",
      "title": "A Safety Study Of The Caya® Diaphragm Used With ContraGel®",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Contraception"
      ],
      "interventions": [
        {
          "name": "ContraGel",
          "type": "DEVICE"
        },
        {
          "name": "HEC Universal Placebo gel",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "CONRAD",
      "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": 23,
      "start_date": "2015-07",
      "completion_date": "2016-04",
      "has_results": false,
      "last_update_posted_date": "2016-05-27",
      "last_synced_at": "2026-09-26T22:26:04.961Z",
      "location_count": 1,
      "location_summary": "Norfolk, Virginia",
      "locations": [
        {
          "city": "Norfolk",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02462954"
    },
    {
      "nct_id": "NCT02693418",
      "title": "Duration of Effect of Acidform Gel on Vaginal pH",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Acidform 5 g",
          "type": "DRUG"
        },
        {
          "name": "Placebo 4 g",
          "type": "DRUG"
        },
        {
          "name": "Acidform 4 g",
          "type": "DRUG"
        },
        {
          "name": "Acidform 3 g",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Evofem Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 105,
      "start_date": "2016-08-24",
      "completion_date": "2016-12-12",
      "has_results": true,
      "last_update_posted_date": "2020-11-20",
      "last_synced_at": "2026-09-26T22:26:04.961Z",
      "location_count": 2,
      "location_summary": "Baltimore, Maryland • Cleveland, Ohio",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02693418"
    },
    {
      "nct_id": "NCT01593124",
      "title": "Identification of Novel Biomarkers of Cervicovaginal Mucosal Inflammation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Vaginal Inflammation",
        "Vaginal Infections"
      ],
      "interventions": [
        {
          "name": "Imiquimod",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "Nonoxynol-9",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "CONRAD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 45 Years · Female only"
      },
      "enrollment_count": 20,
      "start_date": "2012-05",
      "completion_date": "2013-04",
      "has_results": false,
      "last_update_posted_date": "2015-03-31",
      "last_synced_at": "2026-09-26T22:26:04.961Z",
      "location_count": 1,
      "location_summary": "Norfolk, Virginia",
      "locations": [
        {
          "city": "Norfolk",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01593124"
    },
    {
      "nct_id": "NCT02033109",
      "title": "Safety, Pharmacokinetics and Acceptability of PC-1005 for Vaginal Use",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HIV"
      ],
      "interventions": [
        {
          "name": "PC-1005",
          "type": "DRUG"
        },
        {
          "name": "HEC gel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Population Council",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "49 Years",
        "sex": "FEMALE",
        "summary": "19 Years to 49 Years · Female only"
      },
      "enrollment_count": 35,
      "start_date": "2014-05",
      "completion_date": "2015-06",
      "has_results": false,
      "last_update_posted_date": "2017-08-15",
      "last_synced_at": "2026-09-26T22:26:04.961Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02033109"
    },
    {
      "nct_id": "NCT01804023",
      "title": "Biomarkers of Protocol Compliance and Product Adherence",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "HIV Prevention"
      ],
      "interventions": [
        {
          "name": "HEC placebo gel applicators",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "CONRAD",
      "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": 40,
      "start_date": "2013-03",
      "completion_date": "2013-09",
      "has_results": false,
      "last_update_posted_date": "2013-10-30",
      "last_synced_at": "2026-09-26T22:26:04.961Z",
      "location_count": 1,
      "location_summary": "Norfolk, Virginia",
      "locations": [
        {
          "city": "Norfolk",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01804023"
    },
    {
      "nct_id": "NCT03044379",
      "title": "Dapivirine Gel Rectal Safety and PK Study",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HIV 1 Infection"
      ],
      "interventions": [
        {
          "name": "Dapivirine gel (0.05%)",
          "type": "DRUG"
        },
        {
          "name": "Universal HEC placebo gel",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "International Partnership for Microbicides, 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": 0,
      "start_date": "2015-09-29",
      "completion_date": "2017-11",
      "has_results": false,
      "last_update_posted_date": "2017-02-08",
      "last_synced_at": "2026-09-26T22:26:04.961Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03044379"
    },
    {
      "nct_id": "NCT00984971",
      "title": "Rectal Microbicide Safety and Acceptability Trial of Topically Applied Tenofovir Compared With Oral Tablet",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HIV Prevention",
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Tenofovir",
          "type": "DRUG"
        },
        {
          "name": "HEC Placebo",
          "type": "DRUG"
        },
        {
          "name": "Open label tenofovir tablet",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "CONRAD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 18,
      "start_date": "2009-09",
      "completion_date": "2010-07",
      "has_results": false,
      "last_update_posted_date": "2015-08-28",
      "last_synced_at": "2026-09-26T22:26:04.961Z",
      "location_count": 2,
      "location_summary": "Los Angeles, California • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00984971"
    },
    {
      "nct_id": "NCT01989663",
      "title": "A Phase I Trial to Assess the Safety of Tenofovir Gel and Film Formulations: FAME 04",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HIV"
      ],
      "interventions": [
        {
          "name": "1% vaginally applied tenofovir gel",
          "type": "DRUG"
        },
        {
          "name": "Tenofovir film- 10mg",
          "type": "DRUG"
        },
        {
          "name": "Tenofovir Film-40 mg",
          "type": "DRUG"
        },
        {
          "name": "HEC Placebo Gel",
          "type": "OTHER"
        },
        {
          "name": "Placebo Vaginal Film",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "CONRAD",
      "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": 78,
      "start_date": "2013-11",
      "completion_date": "2015-01",
      "has_results": false,
      "last_update_posted_date": "2016-07-27",
      "last_synced_at": "2026-09-26T22:26:04.961Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01989663"
    },
    {
      "nct_id": "NCT01283360",
      "title": "Microbicide Safety and Acceptability in Young Men",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "High Risk MSM",
        "HIV Negative",
        "18-30 Years of Age"
      ],
      "interventions": [
        {
          "name": "HEC Placebo Gel",
          "type": "OTHER"
        },
        {
          "name": "Tenofovir 1% Gel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "CONRAD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "30 Years",
        "sex": "MALE",
        "summary": "18 Years to 30 Years · Male only"
      },
      "enrollment_count": 249,
      "start_date": "2010-10",
      "completion_date": "2013-05",
      "has_results": false,
      "last_update_posted_date": "2015-05-28",
      "last_synced_at": "2026-09-26T22:26:04.961Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01283360"
    }
  ]
}