{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Viral+Respiratory+Tract+Infection&page=5",
    "query": {
      "condition": "Viral Respiratory Tract Infection",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 2205,
    "total_pages": 221,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Viral+Respiratory+Tract+Infection&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Viral+Respiratory+Tract+Infection&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-11T07:51:50.484Z",
  "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": "NCT04412785",
      "title": "Cyclosporine in Patients With Moderate COVID-19",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Cyclosporine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "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": 11,
      "start_date": "2020-06-30",
      "completion_date": "2021-10-25",
      "has_results": false,
      "last_update_posted_date": "2022-01-11",
      "last_synced_at": "2026-10-11T07:51:50.484Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04412785"
    },
    {
      "nct_id": "NCT04379089",
      "title": "Neurologic Manifestations of COVID 19 in Children",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COVID",
        "Neurologic Manifestations"
      ],
      "interventions": [
        {
          "name": "Observational study only",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "Up to 17 Years"
      },
      "enrollment_count": 3568,
      "start_date": "2020-04-29",
      "completion_date": "2022-12-31",
      "has_results": false,
      "last_update_posted_date": "2023-01-27",
      "last_synced_at": "2026-10-11T07:51:50.484Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04379089"
    },
    {
      "nct_id": "NCT04872738",
      "title": "Patient Experiences With the COVID-19 Vaccination After Breast Cancer Treatment",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer Related Lymphedema",
        "Covid19"
      ],
      "interventions": [
        {
          "name": "Survey",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 714,
      "start_date": "2021-05-07",
      "completion_date": "2023-03-17",
      "has_results": true,
      "last_update_posted_date": "2026-01-06",
      "last_synced_at": "2026-10-11T07:51:50.484Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04872738"
    },
    {
      "nct_id": "NCT04419025",
      "title": "Efficacy of N-Acetylcysteine (NAC) in Preventing COVID-19 From Progressing to Severe Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "COVID",
        "Sars-CoV2",
        "SARS-Associated Coronavirus as Cause of Disease Classified Elsewhere",
        "Oxidative Stress"
      ],
      "interventions": [
        {
          "name": "N-acetylcysteine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Cambridge Health Alliance",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 165,
      "start_date": "2020-09-23",
      "completion_date": "2021-05-14",
      "has_results": false,
      "last_update_posted_date": "2021-05-28",
      "last_synced_at": "2026-10-11T07:51:50.484Z",
      "location_count": 4,
      "location_summary": "Cambridge, Massachusetts • Everett, Massachusetts • Somerville, Massachusetts",
      "locations": [
        {
          "city": "Cambridge",
          "state": "Massachusetts"
        },
        {
          "city": "Everett",
          "state": "Massachusetts"
        },
        {
          "city": "Somerville",
          "state": "Massachusetts"
        },
        {
          "city": "Somerville",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04419025"
    },
    {
      "nct_id": "NCT06633835",
      "title": "Impact of Reactogenicity of the 2024-2025 COVID-19 Vaccines on Health Care Workers and First Responders in the United States",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "COVID-19",
        "Vaccine-Preventable Diseases",
        "SARS CoV 2 Infection"
      ],
      "interventions": [
        {
          "name": "protein subunit: Novavax COVID-19 vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pfizer mRNA COVID-19 vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Novavax",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 660,
      "start_date": "2024-09-19",
      "completion_date": "2025-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-06-02",
      "last_synced_at": "2026-10-11T07:51:50.484Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06633835"
    },
    {
      "nct_id": "NCT04341935",
      "title": "Effects of DPP4 Inhibition on COVID-19",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Coronavirus Infection",
        "Type 2 Diabetes"
      ],
      "interventions": [
        {
          "name": "Linagliptin",
          "type": "DRUG"
        },
        {
          "name": "Insulin regimen",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Miami",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2021-06-30",
      "completion_date": "2021-12-30",
      "has_results": false,
      "last_update_posted_date": "2021-06-10",
      "last_synced_at": "2026-10-11T07:51:50.484Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04341935"
    },
    {
      "nct_id": "NCT04372589",
      "title": "Antithrombotic Therapy to Ameliorate Complications of COVID-19 (ATTACC)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "COVID-19",
        "Pneumonia"
      ],
      "interventions": [
        {
          "name": "Heparin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Manitoba",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1200,
      "start_date": "2020-05-20",
      "completion_date": "2021-05-17",
      "has_results": false,
      "last_update_posted_date": "2021-07-27",
      "last_synced_at": "2026-10-11T07:51:50.484Z",
      "location_count": 13,
      "location_summary": "Atlanta, Georgia • Chicago, Illinois • Jefferson, Louisiana + 10 more",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Jefferson",
          "state": "Louisiana"
        },
        {
          "city": "Portland",
          "state": "Maine"
        },
        {
          "city": "Dearborn",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04372589"
    },
    {
      "nct_id": "NCT07730450",
      "title": "A Study to Learn About a COVID-19 Vaccine in Healthy Adults 18 Through 64 Years of Age",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "COVID-19 Vaccines"
      ],
      "interventions": [
        {
          "name": "BNT162b2 Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Tdap Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "BioNTech SE",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 200,
      "start_date": "2026-07-23",
      "completion_date": "2027-08-20",
      "has_results": false,
      "last_update_posted_date": "2026-08-07",
      "last_synced_at": "2026-10-11T07:51:50.484Z",
      "location_count": 5,
      "location_summary": "Walnut Creek, California • Miami Lakes, Florida • Honolulu, Hawaii + 2 more",
      "locations": [
        {
          "city": "Walnut Creek",
          "state": "California"
        },
        {
          "city": "Miami Lakes",
          "state": "Florida"
        },
        {
          "city": "Honolulu",
          "state": "Hawaii"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07730450"
    },
    {
      "nct_id": "NCT04770649",
      "title": "Vaccine Observation to Include All Communities for Equitable Science",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Vaccine Response Impaired",
        "Vaccine Adverse Reaction"
      ],
      "interventions": [
        {
          "name": "COVID-19 vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Persephone Biosciences",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2021-04-01",
      "completion_date": "2022-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-04-05",
      "last_synced_at": "2026-10-11T07:51:50.484Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04770649"
    },
    {
      "nct_id": "NCT05292274",
      "title": "NIH RECOVER Tissue Pathology: Understanding the Long-Term Impact of COVID-19",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COVID-19",
        "SARS CoV 2 Infection"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 304,
      "start_date": "2022-03-30",
      "completion_date": "2027-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-05-29",
      "last_synced_at": "2026-10-11T07:51:50.484Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05292274"
    }
  ]
}