{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Diphtheria%2FTetanus+Vaccine",
    "query": {
      "intervention": "Diphtheria/Tetanus Vaccine"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 115,
    "total_pages": 12,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Diphtheria%2FTetanus+Vaccine&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-29T08:10:08.657Z",
  "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": "NCT03165981",
      "title": "Fever After Simultaneous Versus Sequential Vaccination in Young Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Fever After Vaccination",
        "Fever",
        "Febrile Seizure"
      ],
      "interventions": [
        {
          "name": "PCV13",
          "type": "BIOLOGICAL"
        },
        {
          "name": "DTaP",
          "type": "BIOLOGICAL"
        },
        {
          "name": "IIV",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Months",
        "maximum_age": "16 Months",
        "sex": "ALL",
        "summary": "12 Months to 16 Months"
      },
      "enrollment_count": 221,
      "start_date": "2017-08-25",
      "completion_date": "2018-01-15",
      "has_results": true,
      "last_update_posted_date": "2024-11-18",
      "last_synced_at": "2026-09-29T08:10:08.657Z",
      "location_count": 3,
      "location_summary": "Oakland, California • Atlanta, Georgia • Durham, North Carolina",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03165981"
    },
    {
      "nct_id": "NCT00474526",
      "title": "A Study to Evaluate Safety and Immune Response of Novartis Meningococcal ACWY Vaccine In Infants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Meningitis, Meningococcal"
      ],
      "interventions": [
        {
          "name": "Meningococcal ACWY Conjugate Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "DTaP-IPV-HBV",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Hib",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Rotavirus",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pneumococcal 7-valent Conjugate Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "HAV",
          "type": "BIOLOGICAL"
        },
        {
          "name": "MMR-V",
          "type": "BIOLOGICAL"
        },
        {
          "name": "DTaP",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Novartis Vaccines",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "2 Months",
        "maximum_age": "2 Months",
        "sex": "ALL",
        "summary": "2 Months to 2 Months"
      },
      "enrollment_count": 4545,
      "start_date": "2007-03",
      "completion_date": "2009-11",
      "has_results": true,
      "last_update_posted_date": "2014-03-24",
      "last_synced_at": "2026-09-29T08:10:08.657Z",
      "location_count": 53,
      "location_summary": "Bessemer, Alabama • Birmingham, Alabama • Downey, California + 43 more",
      "locations": [
        {
          "city": "Bessemer",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Downey",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00474526"
    },
    {
      "nct_id": "NCT00772928",
      "title": "Study of the Effect of Pneumococcal Conjugate Vaccine (PCV) on Immunogenicity of Pentacel™",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Diphtheria",
        "Tetanus",
        "Haemophilus Infection",
        "Pertussis",
        "Polio"
      ],
      "interventions": [
        {
          "name": "Pentacel™: HCPDT-IPV//PRP-T Vaccine and Prevnar®",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "42 Days",
        "maximum_age": "89 Days",
        "sex": "ALL",
        "summary": "42 Days to 89 Days"
      },
      "enrollment_count": 1167,
      "start_date": "2003-10",
      "completion_date": "2006-11",
      "has_results": true,
      "last_update_posted_date": "2012-02-01",
      "last_synced_at": "2026-09-29T08:10:08.657Z",
      "location_count": 23,
      "location_summary": "Montgomery, Alabama • Fayetteville, Arkansas • Jonesboro, Arkansas + 19 more",
      "locations": [
        {
          "city": "Montgomery",
          "state": "Alabama"
        },
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00772928"
    },
    {
      "nct_id": "NCT05662852",
      "title": "Safety and Immunogenicity Study of Tdap Vaccinations for Plasma Donors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Tetanus, Diphtheria and Acellular Pertussis Vaccination"
      ],
      "interventions": [
        {
          "name": "Tdap",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "ABO Holdings, 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": 107,
      "start_date": "2023-05-05",
      "completion_date": "2025-05-12",
      "has_results": true,
      "last_update_posted_date": "2026-07-02",
      "last_synced_at": "2026-09-29T08:10:08.657Z",
      "location_count": 1,
      "location_summary": "Glassboro, New Jersey",
      "locations": [
        {
          "city": "Glassboro",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05662852"
    },
    {
      "nct_id": "NCT03207750",
      "title": "This Study Will Evaluate the Immunogenicity, Reactogenicity and Safety of the Routine Infant Vaccines Pediarix®, Hiberix® and Prevenar 13® When Co-administered With GlaxoSmithKline (GSK) Biologicals' Liquid Human Rotavirus Vaccine (HRV) as Compared to GSK's Licensed Lyophilized Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Rotavirus Infection",
        "Rotavirus Vaccines"
      ],
      "interventions": [
        {
          "name": "Rotarix",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pediarix",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Hiberix",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Prevenar 13",
          "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": 1280,
      "start_date": "2017-09-14",
      "completion_date": "2019-03-01",
      "has_results": true,
      "last_update_posted_date": "2020-12-29",
      "last_synced_at": "2026-09-29T08:10:08.657Z",
      "location_count": 47,
      "location_summary": "Birmingham, Alabama • Fayetteville, Arkansas • Jonesboro, Arkansas + 40 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Daly City",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03207750"
    },
    {
      "nct_id": "NCT02955160",
      "title": "A Phase 1, Randomized, Controlled, Observer-blinded Trial to Evaluate the Safety and Immunogenicity of a Multivalent Pneumococcal Conjugate Vaccine in Healthy Adults Aged 18 to 49 Years",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Pneumococcal Infections"
      ],
      "interventions": [
        {
          "name": "Multivalent",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Tdap",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "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": 66,
      "start_date": "2016-11-03",
      "completion_date": "2017-08-01",
      "has_results": false,
      "last_update_posted_date": "2018-09-11",
      "last_synced_at": "2026-09-29T08:10:08.657Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02955160"
    },
    {
      "nct_id": "NCT02052596",
      "title": "Study to Assess the Immunogenicity and Safety of GlaxoSmithKline (GSK) Biologicals' Herpes Zoster Subunit (HZ/su) Vaccine (GSK1437173A) When Co-administered With GSK Biologicals' Diphtheria, Tetanus and Pertussis Vaccine (Boostrix®) in Adults Aged 50 Years and Older",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Herpes Zoster"
      ],
      "interventions": [
        {
          "name": "Herpes Zoster vaccine GSK 1437173A",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Boostrix",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 935,
      "start_date": "2014-02-07",
      "completion_date": "2016-04-21",
      "has_results": true,
      "last_update_posted_date": "2018-04-24",
      "last_synced_at": "2026-09-29T08:10:08.657Z",
      "location_count": 13,
      "location_summary": "Tucson, Arizona • San Diego, California • Stockbridge, Georgia + 9 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Stockbridge",
          "state": "Georgia"
        },
        {
          "city": "Meridian",
          "state": "Idaho"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02052596"
    },
    {
      "nct_id": "NCT00385255",
      "title": "Immunogenicity, Safety of GSKs Tdap Vaccine Boostrix When Coadministered With GSKs Influenza Vaccine Fluarix in Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Acellular Pertussis",
        "Diphtheria",
        "Tetanus"
      ],
      "interventions": [
        {
          "name": "Fluarix®",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Boostrix®",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "19 Years and older"
      },
      "enrollment_count": 1726,
      "start_date": "2006-10-23",
      "completion_date": "2007-02-28",
      "has_results": true,
      "last_update_posted_date": "2019-06-10",
      "last_synced_at": "2026-09-29T08:10:08.657Z",
      "location_count": 12,
      "location_summary": "Huntsville, Alabama • Chandler, Arizona • Mesa, Arizona + 8 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Inverness",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00385255"
    },
    {
      "nct_id": "NCT00601835",
      "title": "Canadian Manufactured Tetanus and Diphtheria Toxoids Adsorbed (Td) Vaccine Compared With U.S. Manufactured Td",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Diphtheria",
        "Tetanus"
      ],
      "interventions": [
        {
          "name": "Tetanus and Diphtheria Toxoids Adsorbed (Td) Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi Pasteur, a Sanofi Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "11 Years to 60 Years"
      },
      "enrollment_count": 3651,
      "start_date": "2004-05",
      "completion_date": "2005-07",
      "has_results": true,
      "last_update_posted_date": "2016-04-14",
      "last_synced_at": "2026-09-29T08:10:08.657Z",
      "location_count": 2,
      "location_summary": "Oakland, California • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00601835"
    },
    {
      "nct_id": "NCT02543918",
      "title": "A Study of the Immune Response to Vaccines and Ixekizumab (LY2439821) in Healthy Participants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Ixekizumab",
          "type": "DRUG"
        },
        {
          "name": "Boostrix®",
          "type": "DRUG"
        },
        {
          "name": "Pneumovax®23",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 84,
      "start_date": "2015-09",
      "completion_date": "2015-12",
      "has_results": true,
      "last_update_posted_date": "2017-01-06",
      "last_synced_at": "2026-09-29T08:10:08.657Z",
      "location_count": 3,
      "location_summary": "Daytona Beach, Florida • Evansville, Indiana • Dallas, Texas",
      "locations": [
        {
          "city": "Daytona Beach",
          "state": "Florida"
        },
        {
          "city": "Evansville",
          "state": "Indiana"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02543918"
    }
  ]
}