{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=COVID-19+Immunization&page=6",
    "query": {
      "condition": "COVID-19 Immunization",
      "page": 6
    },
    "page_size": 10
  },
  "pagination": {
    "page": 6,
    "page_size": 10,
    "total_count": 179,
    "total_pages": 18,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=COVID-19+Immunization&page=7&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=COVID-19+Immunization&page=5&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-06T01:19:43.087Z",
  "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": "NCT04837651",
      "title": "Humoral and T-Cell Responses to COVID-19 Vaccination in Multiple Sclerosis Patients Treated With Ocrelizumab Treated With Ocrelizumab or Natalizumab",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis",
        "Demyelinating Autoimmune Diseases, CNS",
        "Autoimmune Diseases of the Nervous System",
        "Nervous System Diseases",
        "Demyelinating Diseases",
        "Autoimmune Diseases",
        "Immune System Diseases",
        "Pathologic Processes"
      ],
      "interventions": [
        {
          "name": "Elecsys semi-quantitative Anti-SARS-CoV-2 antibody test",
          "type": "DEVICE"
        },
        {
          "name": "T-Detect COVID T-cell blood test",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Dragonfly Research, LLC",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 48,
      "start_date": "2021-03-02",
      "completion_date": "2021-07-01",
      "has_results": false,
      "last_update_posted_date": "2021-08-02",
      "last_synced_at": "2026-10-06T01:19:43.087Z",
      "location_count": 1,
      "location_summary": "Wellesley, Massachusetts",
      "locations": [
        {
          "city": "Wellesley",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04837651"
    },
    {
      "nct_id": "NCT04981392",
      "title": "Trusted Messengers: Intervention to Promote COVID-19 Vaccination",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Covid19",
        "Vaccination"
      ],
      "interventions": [
        {
          "name": "Primary care text message outreach to unvaccinated patients and resources to support PCPs",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Massachusetts, Worcester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 21844,
      "start_date": "2022-06-02",
      "completion_date": "2023-10-25",
      "has_results": true,
      "last_update_posted_date": "2024-11-26",
      "last_synced_at": "2026-10-06T01:19:43.087Z",
      "location_count": 1,
      "location_summary": "Worcester, Massachusetts",
      "locations": [
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04981392"
    },
    {
      "nct_id": "NCT05973084",
      "title": "COVID-19 Transmission and Morbidity in Malawi",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "SARS CoV 2 Infection",
        "SARS CoV 2 Vaccination"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Boston University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "5 Years to 75 Years"
      },
      "enrollment_count": 1500,
      "start_date": "2023-01-17",
      "completion_date": "2028-03",
      "has_results": false,
      "last_update_posted_date": "2026-05-28",
      "last_synced_at": "2026-10-06T01:19:43.087Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05973084"
    },
    {
      "nct_id": "NCT04883164",
      "title": "Immunity After COVID-19 Vaccination",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Immunity to COVID-19"
      ],
      "interventions": [
        {
          "name": "Cellular and antibody response to spike antigens of SARS-CoV-2 in both groups in peripheral blood samples",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Plexision",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 300,
      "start_date": "2021-04-27",
      "completion_date": "2023-03-31",
      "has_results": false,
      "last_update_posted_date": "2021-05-12",
      "last_synced_at": "2026-10-06T01:19:43.087Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04883164"
    },
    {
      "nct_id": "NCT07128095",
      "title": "COVID-19 Health Adjustments in Nutrition, General Wellness, and Exercise",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COVID-19",
        "Sleep",
        "Immunization; Infection",
        "Physical Inactivity",
        "Blood Pressure",
        "Diet Habit",
        "Mental Health Wellness 1"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 100,
      "start_date": "2025-08-22",
      "completion_date": "2026-08-31",
      "has_results": false,
      "last_update_posted_date": "2025-10-30",
      "last_synced_at": "2026-10-06T01:19:43.087Z",
      "location_count": 1,
      "location_summary": "Bloomington, Indiana",
      "locations": [
        {
          "city": "Bloomington",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07128095"
    },
    {
      "nct_id": "NCT04944095",
      "title": "Change in Antibody Levels Following SARS-CoV-2 (Covid-19) Vaccinations",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Covid-19",
        "Subjects Vaccinated Against Covid-19"
      ],
      "interventions": [
        {
          "name": "Change in SARS-CoV-2 Antibody Levels",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Dr. Sidney J. Stohs",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "55 Years and older"
      },
      "enrollment_count": 10000,
      "start_date": "2021-08-10",
      "completion_date": "2024-12-31",
      "has_results": false,
      "last_update_posted_date": "2022-08-29",
      "last_synced_at": "2026-10-06T01:19:43.087Z",
      "location_count": 1,
      "location_summary": "Southlake, Texas",
      "locations": [
        {
          "city": "Southlake",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04944095"
    },
    {
      "nct_id": "NCT05533918",
      "title": "SCALE-UP Utah II: Community-Academic Partnership to Address COVID-19 Text Message Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Text-Messaging (TM)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Patient Navigation (PN)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 31439,
      "start_date": "2022-12-15",
      "completion_date": "2023-11-30",
      "has_results": true,
      "last_update_posted_date": "2025-01-16",
      "last_synced_at": "2026-10-06T01:19:43.087Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05533918"
    },
    {
      "nct_id": "NCT05869968",
      "title": "SCIVAX: Biomarkers of Immune Dysfunction and Vaccine Responsiveness in Chronic SCI",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Spinal Cord Injuries",
        "Traumatic Spinal Cord Injury",
        "Healthy Controls",
        "Flu Vaccine",
        "COVID-19 Vaccine"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Northwell Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 140,
      "start_date": "2023-03-31",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-03",
      "last_synced_at": "2026-10-06T01:19:43.087Z",
      "location_count": 1,
      "location_summary": "Manhasset, New York",
      "locations": [
        {
          "city": "Manhasset",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05869968"
    },
    {
      "nct_id": "NCT05028374",
      "title": "COVID-19 VAX Booster Dosing in Patients With Hematologic Malignancies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Multiple Myeloma",
        "AL Amyloidosis",
        "Chronic Lymphocytic Leukemia"
      ],
      "interventions": [
        {
          "name": "A single \"booster\" dose of the Moderna mRNA COVID-19 vaccine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Barbara Ann Karmanos Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 119,
      "start_date": "2021-08-17",
      "completion_date": "2021-11-02",
      "has_results": true,
      "last_update_posted_date": "2023-12-20",
      "last_synced_at": "2026-10-06T01:19:43.087Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05028374"
    },
    {
      "nct_id": "NCT06297876",
      "title": "COVIDVaxStories: Randomized Trial to Reduce COVID-19 Vaccine Hesitancy in Populations of Color",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaccine Hesitancy"
      ],
      "interventions": [
        {
          "name": "Storytelling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Learn More (Active Comparator)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Massachusetts, Worcester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "105 Years",
        "sex": "ALL",
        "summary": "18 Years to 105 Years"
      },
      "enrollment_count": 100,
      "start_date": "2023-05-19",
      "completion_date": "2024-08-09",
      "has_results": false,
      "last_update_posted_date": "2024-12-04",
      "last_synced_at": "2026-10-06T01:19:43.087Z",
      "location_count": 1,
      "location_summary": "Worcester, Massachusetts",
      "locations": [
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06297876"
    }
  ]
}