{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Covid-19+Prevention",
    "query": {
      "condition": "Covid-19 Prevention"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 130,
    "total_pages": 13,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Covid-19+Prevention&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-23T02:29:42.680Z",
  "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": "NCT04388683",
      "title": "Inhaled Nitric Oxide for Preventing Progression in COVID-19",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Nitric Oxide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Tufts Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 10,
      "start_date": "2020-05-12",
      "completion_date": "2020-11-23",
      "has_results": true,
      "last_update_posted_date": "2022-04-19",
      "last_synced_at": "2026-07-23T02:29:42.680Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04388683"
    },
    {
      "nct_id": "NCT04868903",
      "title": "Low vs. Moderate to High Dose Vitamin D for Prevention of COVID-19",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "SARS-CoV-2 Infection"
      ],
      "interventions": [
        {
          "name": "Vitamin D3",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1475,
      "start_date": "2020-11-30",
      "completion_date": "2024-12-01",
      "has_results": true,
      "last_update_posted_date": "2026-07-22",
      "last_synced_at": "2026-07-23T02:29:42.680Z",
      "location_count": 2,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04868903"
    },
    {
      "nct_id": "NCT04329923",
      "title": "The PATCH Trial (Prevention And Treatment of COVID-19 With Hydroxychloroquine)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Hydroxychloroquine Sulfate 400 mg twice a day",
          "type": "DRUG"
        },
        {
          "name": "Hydroxychloroquine Sulfate 600 mg twice a day",
          "type": "DRUG"
        },
        {
          "name": "Hydroxychloroquine Sulfate 600 mg once a day",
          "type": "DRUG"
        },
        {
          "name": "Placebo oral tablet",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ravi Amaravadi, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 173,
      "start_date": "2020-04-09",
      "completion_date": "2020-11-13",
      "has_results": true,
      "last_update_posted_date": "2020-12-10",
      "last_synced_at": "2026-07-23T02:29:42.680Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04329923"
    },
    {
      "nct_id": "NCT04436276",
      "title": "A Study of Ad26.COV2.S in Adults (COVID-19)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Covid-19 Prevention"
      ],
      "interventions": [
        {
          "name": "Ad26.COV2.S",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Janssen Vaccines & Prevention B.V.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1085,
      "start_date": "2020-07-15",
      "completion_date": "2023-02-21",
      "has_results": true,
      "last_update_posted_date": "2025-02-04",
      "last_synced_at": "2026-07-23T02:29:42.680Z",
      "location_count": 7,
      "location_summary": "San Diego, California • Melbourne, Florida • Peoria, Illinois + 4 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Melbourne",
          "state": "Florida"
        },
        {
          "city": "Peoria",
          "state": "Illinois"
        },
        {
          "city": "Rockville",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04436276"
    },
    {
      "nct_id": "NCT04584710",
      "title": "A Phase 2 Study of RTB101 as COVID-19 Post-Exposure Prophylaxis in Older Adults",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Covid19"
      ],
      "interventions": [
        {
          "name": "RTB101",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Restorbio Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2020-10-13",
      "completion_date": "2021-02",
      "has_results": false,
      "last_update_posted_date": "2021-02-09",
      "last_synced_at": "2026-07-23T02:29:42.680Z",
      "location_count": 2,
      "location_summary": "Farmington, Connecticut • Roslindale, Massachusetts",
      "locations": [
        {
          "city": "Farmington",
          "state": "Connecticut"
        },
        {
          "city": "Roslindale",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04584710"
    },
    {
      "nct_id": "NCT04312243",
      "title": "NO Prevention of COVID-19 for Healthcare Providers",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Coronavirus Infections",
        "Healthcare Associated Infection"
      ],
      "interventions": [
        {
          "name": "Inhaled nitric oxide gas",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 24,
      "start_date": "2020-04-07",
      "completion_date": "2022-01-10",
      "has_results": true,
      "last_update_posted_date": "2026-03-20",
      "last_synced_at": "2026-07-23T02:29:42.680Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04312243"
    },
    {
      "nct_id": "NCT04587258",
      "title": "Improving Cancer Screening and Prevention During the COVID-19 Pandemic in Underserved Populations of Rhode Island",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer",
        "Colorectal Cancer",
        "Covid19"
      ],
      "interventions": [
        {
          "name": "Informational videos and social media campaigns encouraging cancer screening.",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Rhode Island Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2020-08-28",
      "completion_date": "2022-09-01",
      "has_results": false,
      "last_update_posted_date": "2020-10-14",
      "last_synced_at": "2026-07-23T02:29:42.680Z",
      "location_count": 1,
      "location_summary": "Pawtucket, Rhode Island",
      "locations": [
        {
          "city": "Pawtucket",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04587258"
    },
    {
      "nct_id": "NCT06112249",
      "title": "SAFE Workplace Intervention for People With IDD",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Communicable Diseases",
        "Prevention",
        "Workplace Intervention"
      ],
      "interventions": [
        {
          "name": "SAFE Employment Training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Temple University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 67,
      "start_date": "2023-10-24",
      "completion_date": "2025-09-01",
      "has_results": true,
      "last_update_posted_date": "2026-01-28",
      "last_synced_at": "2026-07-23T02:29:42.680Z",
      "location_count": 2,
      "location_summary": "Collingswood, New Jersey • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Collingswood",
          "state": "New Jersey"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06112249"
    },
    {
      "nct_id": "NCT04661813",
      "title": "Assess and Adapt to the Impact of COVID-19 on CVD Self-Management and Prevention Care in Adults Living With HIV",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV-1-infection",
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "EXTRA-CVD Virtual Care",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Case Western Reserve University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 81,
      "start_date": "2021-03-01",
      "completion_date": "2023-01-15",
      "has_results": true,
      "last_update_posted_date": "2024-10-24",
      "last_synced_at": "2026-07-23T02:29:42.680Z",
      "location_count": 3,
      "location_summary": "Durham, North Carolina • Cleveland, Ohio",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04661813"
    },
    {
      "nct_id": "NCT04377659",
      "title": "Tocilizumab for Prevention of Respiratory Failure in Patients With Severe COVID-19 Infection",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Tocilizumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 9,
      "start_date": "2020-05-01",
      "completion_date": "2022-10-28",
      "has_results": true,
      "last_update_posted_date": "2025-05-28",
      "last_synced_at": "2026-07-23T02:29:42.680Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04377659"
    }
  ]
}