{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Vaccine+Response&page=2",
    "query": {
      "condition": "Vaccine Response",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Vaccine+Response&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T04:51:49.833Z",
  "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": "NCT01239043",
      "title": "Antibody Persistence and Response to Re-vaccination With Either Menactra® or Menomune® 3 Years After Initial Vaccination",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Meningitis",
        "Meningococcal Meningitis",
        "Meningococcal Infections"
      ],
      "interventions": [
        {
          "name": "Menomune®: A, C, Y, W 135 Meningococcal Polysaccharide",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Menactra®: Meningococcal (A, C, Y and W 135) Polysaccharide Diphtheria Toxoid Conjugate",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "56 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "56 Years and older"
      },
      "enrollment_count": 139,
      "start_date": "2010-11",
      "completion_date": "2012-02",
      "has_results": true,
      "last_update_posted_date": "2012-06-25",
      "last_synced_at": "2026-05-22T04:51:49.833Z",
      "location_count": 6,
      "location_summary": "Scottsdale, Arizona • Bardstown, Kentucky • Albuquerque, New Mexico + 3 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Bardstown",
          "state": "Kentucky"
        },
        {
          "city": "Albuquerque",
          "state": "New Mexico"
        },
        {
          "city": "West Jordan",
          "state": "Utah"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01239043"
    },
    {
      "nct_id": "NCT01438606",
      "title": "Evaluating the Safety of and Immune Response to the VSV-Indiana HIV Vaccine in Healthy, HIV-Uninfected Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "VSV-Indiana HIV gag vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo injection (normal saline)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 60,
      "start_date": "2011-10",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2021-10-15",
      "last_synced_at": "2026-05-22T04:51:49.833Z",
      "location_count": 4,
      "location_summary": "San Francisco, California • Decatur, Georgia • Philadelphia, Pennsylvania + 1 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Decatur",
          "state": "Georgia"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01438606"
    },
    {
      "nct_id": "NCT05740982",
      "title": "A Phase 2 Randomized Multisite Trial to Inform Public Health Strategies Involving the Use of MVA-BN Vaccine for Mpox",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Monkeypox"
      ],
      "interventions": [
        {
          "name": "JYNNEOS",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "12 Years to 50 Years"
      },
      "enrollment_count": 450,
      "start_date": "2023-03-22",
      "completion_date": "2024-08-28",
      "has_results": true,
      "last_update_posted_date": "2026-03-27",
      "last_synced_at": "2026-05-22T04:51:49.833Z",
      "location_count": 17,
      "location_summary": "Birmingham, Alabama • Washington D.C., District of Columbia • Atlanta, Georgia + 13 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05740982"
    },
    {
      "nct_id": "NCT07399951",
      "title": "Washington University WU 409: Immune Responses to Rabies Vaccine.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Healthy Participants"
      ],
      "interventions": [
        {
          "name": "Imovax",
          "type": "DRUG"
        },
        {
          "name": "RabAvert",
          "type": "DRUG"
        },
        {
          "name": "HyperRAB",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2023-07-18",
      "completion_date": "2025-10-01",
      "has_results": false,
      "last_update_posted_date": "2026-02-10",
      "last_synced_at": "2026-05-22T04:51:49.833Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07399951"
    },
    {
      "nct_id": "NCT04142983",
      "title": "Tdap Vaccine Safety for Plasma Donors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Tetanus"
      ],
      "interventions": [
        {
          "name": "Adacel",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GCAM Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "63 Years",
        "sex": "ALL",
        "summary": "18 Years to 63 Years"
      },
      "enrollment_count": 110,
      "start_date": "2020-02-03",
      "completion_date": "2021-11-16",
      "has_results": true,
      "last_update_posted_date": "2022-12-06",
      "last_synced_at": "2026-05-22T04:51:49.833Z",
      "location_count": 2,
      "location_summary": "Eagle Pass, Texas • Laredo, Texas",
      "locations": [
        {
          "city": "Eagle Pass",
          "state": "Texas"
        },
        {
          "city": "Laredo",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04142983"
    },
    {
      "nct_id": "NCT05972993",
      "title": "A Safety and Immune Response Study to Evaluate Varying Doses of an mRNA Vaccine Against Coronavirus Disease 2019 (COVID-19) in Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "mRNA-CR-04 vaccine 10μg",
          "type": "BIOLOGICAL"
        },
        {
          "name": "mRNA-CR-04 vaccine 30μg",
          "type": "BIOLOGICAL"
        },
        {
          "name": "mRNA-CR-04 vaccine 100μg",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "mRNA-CR-04 vaccine 3μg",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "49 Years",
        "sex": "ALL",
        "summary": "18 Years to 49 Years"
      },
      "enrollment_count": 114,
      "start_date": "2023-08-07",
      "completion_date": "2024-10-14",
      "has_results": true,
      "last_update_posted_date": "2025-05-28",
      "last_synced_at": "2026-05-22T04:51:49.833Z",
      "location_count": 4,
      "location_summary": "San Diego, California • Melbourne, Florida • Peoria, Illinois + 1 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Melbourne",
          "state": "Florida"
        },
        {
          "city": "Peoria",
          "state": "Illinois"
        },
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05972993"
    },
    {
      "nct_id": "NCT00955006",
      "title": "Immune Response to an HIV DNA Plasmid Vaccine Prime Followed by Adenovirus Boost in HIV-uninfected Individuals",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "VRC-HIVDNA-016-00-VP",
          "type": "BIOLOGICAL"
        },
        {
          "name": "VRCHIVADV014-00-VP",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 17,
      "start_date": "2011-05",
      "completion_date": "2017-11-22",
      "has_results": false,
      "last_update_posted_date": "2021-10-14",
      "last_synced_at": "2026-05-22T04:51:49.833Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00955006"
    },
    {
      "nct_id": "NCT00091416",
      "title": "Safety of and Immune Response to an HIV-1 Vaccine Boost (VRC-HIVADV014-00-VP) in HIV Uninfected Adults Who Participated in HVTN 052",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "VRC-HIVADV014-00-VP",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 70,
      "start_date": null,
      "completion_date": "2006-05",
      "has_results": false,
      "last_update_posted_date": "2021-10-14",
      "last_synced_at": "2026-05-22T04:51:49.833Z",
      "location_count": 8,
      "location_summary": "Baltimore, Maryland • Boston, Massachusetts • St Louis, Missouri + 5 more",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00091416"
    },
    {
      "nct_id": "NCT00955851",
      "title": "A Study To Examine Serologic Response In Hospitalized Patients Receiving Polyvalent Pneumococcal Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pneumonia"
      ],
      "interventions": [
        {
          "name": "Pre and post vaccination titers",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "George Washington University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 25,
      "start_date": "2009-06",
      "completion_date": "2010-07",
      "has_results": false,
      "last_update_posted_date": "2010-07-30",
      "last_synced_at": "2026-05-22T04:51:49.833Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00955851"
    },
    {
      "nct_id": "NCT00347672",
      "title": "Safety of and Immune Response to a Bird Flu Virus Vaccine (H5N1) in Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza",
        "Virus Diseases"
      ],
      "interventions": [
        {
          "name": "H5N1 (6-2) AA ca Recombinant (A/VietNam/1203/2004 x A/AnnArbor/6/60/ca)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "49 Years",
        "sex": "ALL",
        "summary": "18 Years to 49 Years"
      },
      "enrollment_count": 42,
      "start_date": "2006-06",
      "completion_date": "2007-07",
      "has_results": false,
      "last_update_posted_date": "2008-01-21",
      "last_synced_at": "2026-05-22T04:51:49.833Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00347672"
    }
  ]
}