{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Opt-In+Recruitment",
    "query": {
      "intervention": "Opt-In Recruitment"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-08T05:47:44.393Z",
  "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": "NCT06518174",
      "title": "A Novel Imaging Modality to Evaluate Radiation-Induced Uterine Injury",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Uterine Injury"
      ],
      "interventions": [
        {
          "name": "MRI, SWE, and US evaluation",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Colorado, Denver",
      "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": 8,
      "start_date": "2025-02-25",
      "completion_date": "2026-06-03",
      "has_results": false,
      "last_update_posted_date": "2026-06-08",
      "last_synced_at": "2026-09-08T05:47:44.393Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06518174"
    },
    {
      "nct_id": "NCT05832177",
      "title": "Outreach Core Activities",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cancer Education",
        "Spanish Language Cancer Education"
      ],
      "interventions": [
        {
          "name": "Cancer CientoUno (101) program",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Latinos y el cáncer/Hablemos de cáncer (Translation in English: Latinos and Cancer/Let's Talk About Cancer)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "¡Salud! Serie de Charlas (Translation in English: Health! Talk Series)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Community/Researcher Forum: El Puente (Translation in English: The Bridge).",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Lunch and Learn Updated Recommendations Series.",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Community Engagement (CE) Training Program for U54 Partnership Investigators",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Community Advisory Panels (CAP)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Research Corner",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Community-based Training Program (CBTP) for Community Leaders and Stakeholders.",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Integrate Cancer 101 into the Stakeholders Programs",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Community Engagement (CE) Training Program for Lay Community Members",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "H. Lee Moffitt Cancer Center and Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1200,
      "start_date": "2023-03-22",
      "completion_date": "2028-07",
      "has_results": false,
      "last_update_posted_date": "2026-02-20",
      "last_synced_at": "2026-09-08T05:47:44.393Z",
      "location_count": 1,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05832177"
    },
    {
      "nct_id": "NCT05483686",
      "title": "Improving HIV Outcomes Among African American Transgender Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV"
      ],
      "interventions": [
        {
          "name": "Shine",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "ISA Associates, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 38,
      "start_date": "2021-11-16",
      "completion_date": "2023-01-30",
      "has_results": true,
      "last_update_posted_date": "2023-10-16",
      "last_synced_at": "2026-09-08T05:47:44.393Z",
      "location_count": 1,
      "location_summary": "Alexandria, Virginia",
      "locations": [
        {
          "city": "Alexandria",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05483686"
    },
    {
      "nct_id": "NCT05400434",
      "title": "Natural Helpers and PCIT",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Child Behavior",
        "Parenting"
      ],
      "interventions": [
        {
          "name": "Standard Parent-Child Interaction Therapy (PCIT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Natural Helpers (NH)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Miami",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "2 Years to 12 Years"
      },
      "enrollment_count": 300,
      "start_date": "2018-12-03",
      "completion_date": "2026-12-27",
      "has_results": false,
      "last_update_posted_date": "2026-01-13",
      "last_synced_at": "2026-09-08T05:47:44.393Z",
      "location_count": 2,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05400434"
    },
    {
      "nct_id": "NCT04714398",
      "title": "SupportBP 2.0:Behavioral Science and Enrollment in Remote Monitoring for Hypertension Management",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Opt-In Recruitment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Opt-Out Recruitment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 425,
      "start_date": "2021-02-26",
      "completion_date": "2022-08-26",
      "has_results": false,
      "last_update_posted_date": "2022-09-19",
      "last_synced_at": "2026-09-08T05:47:44.393Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04714398"
    },
    {
      "nct_id": "NCT07479498",
      "title": "Mountain West Prevention Research Center Core Research Project",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Childhood Obesity"
      ],
      "interventions": [
        {
          "name": "Text Message-based recruitment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Active outreach follow-up",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Paul Estabrooks",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 600,
      "start_date": "2024-09-30",
      "completion_date": "2029-09-29",
      "has_results": false,
      "last_update_posted_date": "2026-03-18",
      "last_synced_at": "2026-09-08T05:47:44.393Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07479498"
    },
    {
      "nct_id": "NCT01977495",
      "title": "Take Charge of Your Diabetes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes",
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Financial Incentive: Fixed Lottery",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 136,
      "start_date": "2013-12",
      "completion_date": "2014-08",
      "has_results": false,
      "last_update_posted_date": "2015-12-09",
      "last_synced_at": "2026-09-08T05:47:44.393Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01977495"
    },
    {
      "nct_id": "NCT05571410",
      "title": "BP PAL - Hypertension Chat Bot Pilot",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "HTN Chat bot",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 300,
      "start_date": "2023-01-09",
      "completion_date": "2023-10-31",
      "has_results": false,
      "last_update_posted_date": "2024-07-25",
      "last_synced_at": "2026-09-08T05:47:44.393Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05571410"
    },
    {
      "nct_id": "NCT05469269",
      "title": "Cleveland African American Prostate Cancer Project",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Passive Education",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Education by Community Navigator",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Education at Community Outreach Screening Event",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Case Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "40 Years and older · Male only"
      },
      "enrollment_count": 800,
      "start_date": "2023-06-09",
      "completion_date": "2027-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-04-08",
      "last_synced_at": "2026-09-08T05:47:44.393Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05469269"
    },
    {
      "nct_id": "NCT04506268",
      "title": "COVID-19 SAFE Enrollment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Covid19"
      ],
      "interventions": [
        {
          "name": "Opt-out Recruitment Email",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Opt-in Recruitment Email",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 412,
      "start_date": "2020-09-09",
      "completion_date": "2020-10-30",
      "has_results": false,
      "last_update_posted_date": "2021-03-11",
      "last_synced_at": "2026-09-08T05:47:44.393Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04506268"
    }
  ]
}