{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Nirmatrelvir&page=2",
    "query": {
      "intervention": "Nirmatrelvir",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 28,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Nirmatrelvir&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Nirmatrelvir&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-30T11:02:33.455Z",
  "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": "NCT05576662",
      "title": "Paxlovid for Treatment of Long Covid",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Post-acute Sequelae of SARS-CoV-2 Infection",
        "Long COVID"
      ],
      "interventions": [
        {
          "name": "Nirmatrelvir",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Ritonavir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 168,
      "start_date": "2022-11-08",
      "completion_date": "2023-09-12",
      "has_results": true,
      "last_update_posted_date": "2025-09-04",
      "last_synced_at": "2026-09-30T11:02:33.455Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05576662"
    },
    {
      "nct_id": "NCT05438602",
      "title": "A Study to Learn About the Study Medicines (Nirmatrelvir Plus Ritonavir) in People Aged 12 Years or Older With COVID-19 and a Compromised Immune System",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Nirmatrelvir",
          "type": "DRUG"
        },
        {
          "name": "Ritonavir",
          "type": "DRUG"
        },
        {
          "name": "Placebo for nirmatrelvir",
          "type": "DRUG"
        },
        {
          "name": "Placebo for ritonavir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 158,
      "start_date": "2022-08-03",
      "completion_date": "2023-11-13",
      "has_results": true,
      "last_update_posted_date": "2024-09-23",
      "last_synced_at": "2026-09-30T11:02:33.455Z",
      "location_count": 25,
      "location_summary": "San Francisco, California • Washington D.C., District of Columbia • Doral, Florida + 15 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Doral",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05438602"
    },
    {
      "nct_id": "NCT04960202",
      "title": "EPIC-HR: Study of Oral PF-07321332/Ritonavir Compared With Placebo in Nonhospitalized High Risk Adults With COVID-19",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "PF-07321332",
          "type": "DRUG"
        },
        {
          "name": "Ritonavir",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2091,
      "start_date": "2021-07-16",
      "completion_date": "2022-04-25",
      "has_results": true,
      "last_update_posted_date": "2025-07-10",
      "last_synced_at": "2026-09-30T11:02:33.455Z",
      "location_count": 73,
      "location_summary": "Pelham, Alabama • Mesa, Arizona • Tucson, Arizona + 46 more",
      "locations": [
        {
          "city": "Pelham",
          "state": "Alabama"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Canoga Park",
          "state": "California"
        },
        {
          "city": "Fullerton",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04960202"
    },
    {
      "nct_id": "NCT06441955",
      "title": "Covid-19 Long Haul Preventative and Health Promotion Care Clinical Trial Acceleration Program.",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "COVID-19, Long Haul"
      ],
      "interventions": [
        {
          "name": "Ritonavir-Boosted Nirmatrelvir (Paxlovid)",
          "type": "DRUG"
        },
        {
          "name": "Physiological Evaluation",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Moderna COVID-19 Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Biopsychological",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Behavioral (e.g., Psychotherapy, Lifestyle Counseling)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Genetic (including gene transfer, stem cell and recombinant DNA)",
          "type": "GENETIC"
        },
        {
          "name": "Multidisciplinary approach",
          "type": "COMBINATION_PRODUCT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIAGNOSTIC_TEST",
        "BIOLOGICAL",
        "BEHAVIORAL",
        "GENETIC",
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "Well- Konnect Healthcare Services and Research Firm",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 100,
      "start_date": "2024-03-01",
      "completion_date": "2030-09-30",
      "has_results": false,
      "last_update_posted_date": "2024-11-27",
      "last_synced_at": "2026-09-30T11:02:33.455Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06441955"
    },
    {
      "nct_id": "NCT07072793",
      "title": "A US Study to Look at Loss of Work and Healthcare Costs for People Affected With Mild-to-moderate COVID 19 Who Have High Chances of the Disease Becoming Severe",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COVID-19 (Coronavirus Disease 2019)"
      ],
      "interventions": [
        {
          "name": "nirmatrelvir-ritonavir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 131005,
      "start_date": "2024-10-31",
      "completion_date": "2024-11-15",
      "has_results": true,
      "last_update_posted_date": "2026-02-09",
      "last_synced_at": "2026-09-30T11:02:33.455Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07072793"
    },
    {
      "nct_id": "NCT05545319",
      "title": "A Study to Learn About the Medicine Called Nirmatrelvir Used in Combination With Ritonavir in People With Weakened Immune Systems or at Increased Risk for Poor Outcomes Who Are Hospitalized Due to Severe COVID-19",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)",
        "Coronavirus Disease 2019 (COVID-19)",
        "Immunocompromised",
        "Hospitalization",
        "Child, Hospitalized"
      ],
      "interventions": [
        {
          "name": "Nirmatrelvir",
          "type": "DRUG"
        },
        {
          "name": "Ritonavir",
          "type": "DRUG"
        },
        {
          "name": "Placebo for nirmatrelvir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2022-12-13",
      "completion_date": "2024-01-06",
      "has_results": false,
      "last_update_posted_date": "2023-03-01",
      "last_synced_at": "2026-09-30T11:02:33.455Z",
      "location_count": 2,
      "location_summary": "Cooperstown, New York • New York, New York",
      "locations": [
        {
          "city": "Cooperstown",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05545319"
    },
    {
      "nct_id": "NCT05064800",
      "title": "PF-07321332/Ritonavir and Ritonavir on Dabigatran Study in Healthy Participants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Participants"
      ],
      "interventions": [
        {
          "name": "Dabigatran",
          "type": "DRUG"
        },
        {
          "name": "PF-07321332/ritonavir + Dabigatran",
          "type": "DRUG"
        },
        {
          "name": "Ritonavir + Dabigatran",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 24,
      "start_date": "2021-09-21",
      "completion_date": "2021-12-06",
      "has_results": true,
      "last_update_posted_date": "2024-03-29",
      "last_synced_at": "2026-09-30T11:02:33.455Z",
      "location_count": 1,
      "location_summary": "Hollywood, Florida",
      "locations": [
        {
          "city": "Hollywood",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05064800"
    },
    {
      "nct_id": "NCT06160128",
      "title": "Clinical Outcomes and Pharmacotherapy Effectiveness in the VA Health Care System (COPE-VA)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COVID-19, SARS-CoV-2 Infection",
        "RSV",
        "Influenza"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 400000,
      "start_date": "2022-09-26",
      "completion_date": "2027-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-09-04",
      "last_synced_at": "2026-09-30T11:02:33.455Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06160128"
    },
    {
      "nct_id": "NCT05263895",
      "title": "Relative Bioavailability Study of 4 Different Formulations of PF-07321332 Relative to the Commercial Tablet Formulation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Bioavailability"
      ],
      "interventions": [
        {
          "name": "PF-07321332/ritonavir",
          "type": "DRUG"
        },
        {
          "name": "PF-07321332",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2022-03-03",
      "completion_date": "2022-05-16",
      "has_results": true,
      "last_update_posted_date": "2025-06-11",
      "last_synced_at": "2026-09-30T11:02:33.455Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05263895"
    },
    {
      "nct_id": "NCT05487040",
      "title": "A Study to Measure the Amount of Study Medicine in Blood in Adult Participants With COVID-19 and Severe Kidney Disease",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "PF-07321332 (nirmatrelvir)/ritonavir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2022-09-07",
      "completion_date": "2023-07-11",
      "has_results": true,
      "last_update_posted_date": "2024-09-23",
      "last_synced_at": "2026-09-30T11:02:33.455Z",
      "location_count": 52,
      "location_summary": "Huntsville, Alabama • Granada Hills, California • Inglewood, California + 26 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05487040"
    }
  ]
}