{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=COVID-19+Long+Haul+Syndrome",
    "query": {
      "condition": "COVID-19 Long Haul Syndrome"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 21,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=COVID-19+Long+Haul+Syndrome&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-24T10:09:29.298Z",
  "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": "NCT04950673",
      "title": "Open-label, Post-marketing, Prospective Study to Assess Impact of COVID-19 on Cognitive Function in Patients",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cognitive Decline",
        "Cognitive Dysfunction",
        "Brain Health",
        "Post CoV-2 Syndrome",
        "COVID Long-Haul"
      ],
      "interventions": [
        {
          "name": "Cognivue",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Cognivue, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "95 Years",
        "sex": "ALL",
        "summary": "18 Years to 95 Years"
      },
      "enrollment_count": 1000,
      "start_date": "2021-07-21",
      "completion_date": "2024-04-30",
      "has_results": false,
      "last_update_posted_date": "2022-06-22",
      "last_synced_at": "2026-07-24T10:09:29.298Z",
      "location_count": 4,
      "location_summary": "Irvine, California • Visalia, California • Boca Raton, Florida + 1 more",
      "locations": [
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "Visalia",
          "state": "California"
        },
        {
          "city": "Boca Raton",
          "state": "Florida"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04950673"
    },
    {
      "nct_id": "NCT04798066",
      "title": "Intermediate Size Expanded Access Protocol for the Treatment of Post-COVID-19 Syndrome",
      "overall_status": "NO_LONGER_AVAILABLE",
      "study_type": "EXPANDED_ACCESS",
      "phases": [],
      "conditions": [
        "Post COVID-19 Syndrome"
      ],
      "interventions": [
        {
          "name": "HB-adMSCs",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Hope Biosciences Research Foundation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": null,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2025-09-29",
      "last_synced_at": "2026-07-24T10:09:29.298Z",
      "location_count": 1,
      "location_summary": "Sugar Land, Texas",
      "locations": [
        {
          "city": "Sugar Land",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04798066"
    },
    {
      "nct_id": "NCT06204432",
      "title": "Sodium Citrate in Smell Retraining for People With Post-COVID-19 Olfactory Dysfunction",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Long Haul COVID-19",
        "Post-Acute COVID-19 Syndrome",
        "Anosmia",
        "Olfaction Disorders"
      ],
      "interventions": [
        {
          "name": "Sodium Citrate",
          "type": "DRUG"
        },
        {
          "name": "Normal Saline",
          "type": "DRUG"
        },
        {
          "name": "Olfactory Training Kit - \"The Olfactory Kit, by AdvancedRx\"",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2023-12-01",
      "completion_date": "2025-12",
      "has_results": false,
      "last_update_posted_date": "2025-02-20",
      "last_synced_at": "2026-07-24T10:09:29.298Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06204432"
    },
    {
      "nct_id": "NCT06189066",
      "title": "Long COVID Ultrasound Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Long Covid"
      ],
      "interventions": [
        {
          "name": "Splenic Ultrasound",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "SecondWave Systems Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 15,
      "start_date": "2024-01-03",
      "completion_date": "2025-07-24",
      "has_results": false,
      "last_update_posted_date": "2026-01-07",
      "last_synced_at": "2026-07-24T10:09:29.298Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06189066"
    },
    {
      "nct_id": "NCT04854772",
      "title": "Mind Body Intervention for COVID-19 Long Haul Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "COVID-19 Long Haul Syndrome"
      ],
      "interventions": [
        {
          "name": "Mind Body Syndrome Therapy for Long Covid",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Beth Israel Deaconess Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 23,
      "start_date": "2021-05-15",
      "completion_date": "2022-08-09",
      "has_results": false,
      "last_update_posted_date": "2022-08-19",
      "last_synced_at": "2026-07-24T10:09:29.298Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04854772"
    },
    {
      "nct_id": "NCT05350774",
      "title": "Immunotherapy for Neurological Post-Acute Sequelae of SARS-CoV-2",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Systemic Inflammation",
        "Neuroinflammation",
        "Microvascular Thrombosis"
      ],
      "interventions": [
        {
          "name": "IV normal saline",
          "type": "DRUG"
        },
        {
          "name": "IV immunoglobulin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Neurological Disorders and Stroke (NINDS)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 45,
      "start_date": "2023-07-10",
      "completion_date": "2026-12-15",
      "has_results": false,
      "last_update_posted_date": "2026-07-17",
      "last_synced_at": "2026-07-24T10:09:29.298Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05350774"
    },
    {
      "nct_id": "NCT07140094",
      "title": "Long-Covid-19 Alleviation Through Learning Mindfulness Study",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Long COVID",
        "Long Covid19",
        "Post-Acute COVID-19",
        "Post-Acute COVID-19 Syndrome",
        "Post-Acute COVID-19 Infection",
        "COVID Long-Haul"
      ],
      "interventions": [
        {
          "name": "Structured mindfulness intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 400,
      "start_date": "2024-05-21",
      "completion_date": "2027-11-21",
      "has_results": false,
      "last_update_posted_date": "2025-08-24",
      "last_synced_at": "2026-07-24T10:09:29.298Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07140094"
    },
    {
      "nct_id": "NCT05453201",
      "title": "Developing an Integrative, Recovery-Based, Post-Acute COVID-19 Syndrome (PACS) Psychotherapeutic Intervention",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Long COVID"
      ],
      "interventions": [
        {
          "name": "Long COVID Coping and Recovery (LCCR) Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 22,
      "start_date": "2022-10-01",
      "completion_date": "2024-09-30",
      "has_results": true,
      "last_update_posted_date": "2025-04-02",
      "last_synced_at": "2026-07-24T10:09:29.298Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05453201"
    },
    {
      "nct_id": "NCT06163690",
      "title": "Symptom Tracking in Long COVID Patients Using Formula C™ Sublingual Drops",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Long COVID",
        "Long Covid19",
        "Post-Acute COVID-19",
        "Post-Acute COVID-19 Syndrome",
        "Long Haul COVID",
        "Long-Haul COVID-19"
      ],
      "interventions": [
        {
          "name": "Endourage Targeted Wellness Formula C™, a full hemp flower extract",
          "type": "COMBINATION_PRODUCT"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "Endourage, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2023-12-13",
      "completion_date": "2025-01-31",
      "has_results": false,
      "last_update_posted_date": "2025-02-25",
      "last_synced_at": "2026-07-24T10:09:29.298Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06163690"
    },
    {
      "nct_id": "NCT06223971",
      "title": "Long COVID-19 [11C]CPPC Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "COVID Long-Haul"
      ],
      "interventions": [
        {
          "name": "[11C]CPPC Injection",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 6,
      "start_date": "2024-08-06",
      "completion_date": "2026-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-30",
      "last_synced_at": "2026-07-24T10:09:29.298Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06223971"
    }
  ]
}