{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=dTpa+vaccine",
    "query": {
      "intervention": "dTpa vaccine"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 6,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-30T05:04:05.091Z",
  "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": "NCT00346073",
      "title": "Safety and Immunogenicity of GSK's Tdap Vaccine (Boostrix) in Adults Aged 19 to 64 Years",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Acellular Pertussis",
        "Diphtheria",
        "Tetanus"
      ],
      "interventions": [
        {
          "name": "Boostrix™",
          "type": "BIOLOGICAL"
        },
        {
          "name": "ADACEL®",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "19 Years to 64 Years"
      },
      "enrollment_count": 2337,
      "start_date": "2006-07-13",
      "completion_date": "2007-03-07",
      "has_results": true,
      "last_update_posted_date": "2018-08-07",
      "last_synced_at": "2026-09-30T05:04:05.091Z",
      "location_count": 42,
      "location_summary": "Huntsville, Alabama • Chandler, Arizona • Mesa, Arizona + 36 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Peoria",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00346073"
    },
    {
      "nct_id": "NCT00282295",
      "title": "US-licensed Combined Vaccine Against Tetanus & Diphtheria, Given With US-licensed Vaccine Against Meningococcal Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Acellular Pertussis",
        "Tetanus",
        "Diphtheria"
      ],
      "interventions": [
        {
          "name": "Boostrix®",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Menactra™",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "11 Years to 18 Years"
      },
      "enrollment_count": 1344,
      "start_date": "2006-01-25",
      "completion_date": "2006-08-08",
      "has_results": true,
      "last_update_posted_date": "2018-08-17",
      "last_synced_at": "2026-09-30T05:04:05.091Z",
      "location_count": 24,
      "location_summary": "Chandler, Arizona • Little Rock, Arkansas • Fountain Valley, California + 18 more",
      "locations": [
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Golden",
          "state": "Colorado"
        },
        {
          "city": "Marietta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00282295"
    },
    {
      "nct_id": "NCT04138056",
      "title": "A Study of a Vaccine Against Respiratory Syncytial Virus (RSV) When Given Alone and Together With a Vaccine Against Diphtheria, Pertussis and Tetanus (Tdap) Viruses Followed by a 2nd Dose of the RSV Vaccine to Healthy Non-Pregnant Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Respiratory Syncytial Virus Infections"
      ],
      "interventions": [
        {
          "name": "RSVPreF3 formulation 3",
          "type": "BIOLOGICAL"
        },
        {
          "name": "RSVPreF3 formulation 2",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Boostrix-ex-US",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Boostrix-US",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 509,
      "start_date": "2019-11-05",
      "completion_date": "2021-11-22",
      "has_results": true,
      "last_update_posted_date": "2024-08-21",
      "last_synced_at": "2026-09-30T05:04:05.091Z",
      "location_count": 4,
      "location_summary": "Miami, Florida • Lenexa, Kansas • Rochester, New York + 1 more",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Lenexa",
          "state": "Kansas"
        },
        {
          "city": "Rochester",
          "state": "New York"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04138056"
    },
    {
      "nct_id": "NCT04723602",
      "title": "Evaluation of Safety, Tolerability and Immune Responses of Ebola-S and Marburg Vaccines in Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Ebola Virus Disease",
        "Marburg Virus Disease"
      ],
      "interventions": [
        {
          "name": "cAd3-Marburg",
          "type": "BIOLOGICAL"
        },
        {
          "name": "cAd3-EBO-S",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Albert B. Sabin Vaccine Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 32,
      "start_date": "2021-01-06",
      "completion_date": "2021-12-14",
      "has_results": false,
      "last_update_posted_date": "2022-08-03",
      "last_synced_at": "2026-09-30T05:04:05.091Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04723602"
    },
    {
      "nct_id": "NCT03621670",
      "title": "Safety and Immunogenicity of GSK Meningococcal Group B Vaccine and 13-valent Pneumococcal Vaccine Administered Concomitantly With Routine Infant Vaccines to Healthy Infants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Infections, Meningococcal"
      ],
      "interventions": [
        {
          "name": "Bexsero (GSK Biologicals' Meningococcal group-B vaccine/ rMenB+OMV NZ)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Prevnar13",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pediarix",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Hiberix",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Rotarix",
          "type": "BIOLOGICAL"
        },
        {
          "name": "M-M-R II",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Varivax",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo (saline water)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Prevnar 20",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Weeks",
        "maximum_age": "12 Weeks",
        "sex": "ALL",
        "summary": "6 Weeks to 12 Weeks"
      },
      "enrollment_count": 1196,
      "start_date": "2018-07-27",
      "completion_date": "2024-12-27",
      "has_results": true,
      "last_update_posted_date": "2026-08-20",
      "last_synced_at": "2026-09-30T05:04:05.091Z",
      "location_count": 56,
      "location_summary": "Birmingham, Alabama • Fayetteville, Arkansas • Jonesboro, Arkansas + 47 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03621670"
    },
    {
      "nct_id": "NCT05169905",
      "title": "A Study to Evaluate the Safety and Immune Response to an Unadjuvanted RSV Maternal Vaccine in Healthy Non-pregnant Females From 9 to 49 Years of Age",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Respiratory Syncytial Virus Infections"
      ],
      "interventions": [
        {
          "name": "RSV MAT vaccine",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "dTpa vaccine",
          "type": "COMBINATION_PRODUCT"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "9 Years",
        "maximum_age": "49 Years",
        "sex": "FEMALE",
        "summary": "9 Years to 49 Years · Female only"
      },
      "enrollment_count": 9,
      "start_date": "2022-02-02",
      "completion_date": "2022-08-03",
      "has_results": true,
      "last_update_posted_date": "2023-04-07",
      "last_synced_at": "2026-09-30T05:04:05.091Z",
      "location_count": 2,
      "location_summary": "Miami, Florida • Beaumont, Texas",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Beaumont",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05169905"
    }
  ]
}