{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Varicella+Vaccine",
    "query": {
      "intervention": "Varicella Vaccine"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 118,
    "total_pages": 12,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Varicella+Vaccine&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-19T06:55:04.892Z",
  "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": "NCT05304351",
      "title": "Safety and Immunogenicity of CRV-101 Vaccine for the Prevention of Herpes Zoster in Adults Aged 50 Years and Older",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Herpes Zoster",
        "Shingles"
      ],
      "interventions": [
        {
          "name": "Amezosvatein Antigen High Dose Arm A",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Amezosvatein Antigen Low Dose Arm B",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Shingrix",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Amezosvatein Adjuvant Dose Arm D",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Amezosvatein Adjuvant Dose Arm F",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Amezosvatein Adjuvant Dose Arm H",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Amezosvatein Adjuvant Dose Arm J",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Amezosvatein Adjuvant Dose Arm L",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Curevo Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 1516,
      "start_date": "2022-02-02",
      "completion_date": "2032-03-06",
      "has_results": false,
      "last_update_posted_date": "2025-09-30",
      "last_synced_at": "2026-09-19T06:55:04.892Z",
      "location_count": 14,
      "location_summary": "Tempe, Arizona • Coral Gables, Florida • Tampa, Florida + 11 more",
      "locations": [
        {
          "city": "Tempe",
          "state": "Arizona"
        },
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Oak Brook",
          "state": "Illinois"
        },
        {
          "city": "Lenexa",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05304351"
    },
    {
      "nct_id": "NCT03893448",
      "title": "Safety, Tolerability, and Immunogenicity of V114 in Healthy Infants (V114-029)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Infections",
        "Pneumococcal Vaccines"
      ],
      "interventions": [
        {
          "name": "V114",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Prevnar 13™",
          "type": "BIOLOGICAL"
        },
        {
          "name": "RotaTeq™",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pentacel™",
          "type": "BIOLOGICAL"
        },
        {
          "name": "RECOMBIVAX HB™",
          "type": "BIOLOGICAL"
        },
        {
          "name": "VAQTA™",
          "type": "BIOLOGICAL"
        },
        {
          "name": "MMR II™",
          "type": "BIOLOGICAL"
        },
        {
          "name": "VARIVAX™",
          "type": "BIOLOGICAL"
        },
        {
          "name": "HIBERIX™",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "42 Days",
        "maximum_age": "90 Days",
        "sex": "ALL",
        "summary": "42 Days to 90 Days"
      },
      "enrollment_count": 1720,
      "start_date": "2019-06-19",
      "completion_date": "2021-05-24",
      "has_results": true,
      "last_update_posted_date": "2023-07-28",
      "last_synced_at": "2026-09-19T06:55:04.892Z",
      "location_count": 66,
      "location_summary": "Birmingham, Alabama • Dothan, Alabama • Opp, Alabama + 58 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "Opp",
          "state": "Alabama"
        },
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03893448"
    },
    {
      "nct_id": "NCT02590068",
      "title": "Effects of Chronic Viral Infection on Immune Response to Zoster Vaccination",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hepatitis C"
      ],
      "interventions": [
        {
          "name": "Zoster vaccine live",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Rockefeller University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "50 Years to 60 Years"
      },
      "enrollment_count": 14,
      "start_date": "2015-12",
      "completion_date": "2017-09-08",
      "has_results": true,
      "last_update_posted_date": "2019-12-18",
      "last_synced_at": "2026-09-19T06:55:04.892Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02590068"
    },
    {
      "nct_id": "NCT03798691",
      "title": "Immunogenicity of Herpes Zoster Subunit Vaccine in Inflammatory Bowel Disease Patients Treated With Vedolizumab",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Inflammatory Bowel Diseases",
        "Crohn Disease",
        "Ulcerative Colitis",
        "Herpes Zoster"
      ],
      "interventions": [
        {
          "name": "Shingrix",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 33,
      "start_date": "2019-05-28",
      "completion_date": "2024-09-10",
      "has_results": true,
      "last_update_posted_date": "2025-04-02",
      "last_synced_at": "2026-09-19T06:55:04.892Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03798691"
    },
    {
      "nct_id": "NCT05630846",
      "title": "A Study on the Immune Response and Safety of a Combined Measles, Mumps, Rubella, Chickenpox Vaccine Compared to a Marketed Combined Vaccine, Given to Healthy Children 4 to 6 Years of Age",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Measles; Mumps; Rubella; Chickenpox",
        "Measles"
      ],
      "interventions": [
        {
          "name": "Investigational MMRV(H)NS vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational MM(H)RVNS vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational M(L)M(L)R(L)V(L)NS vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Marketed MMRV_Lot 1 and Lot 2 vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "6 Years",
        "sex": "ALL",
        "summary": "4 Years to 6 Years"
      },
      "enrollment_count": 801,
      "start_date": "2022-12-14",
      "completion_date": "2024-10-14",
      "has_results": true,
      "last_update_posted_date": "2025-06-22",
      "last_synced_at": "2026-09-19T06:55:04.892Z",
      "location_count": 35,
      "location_summary": "Birmingham, Alabama • Jonesboro, Arkansas • Bellflower, California + 30 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Bellflower",
          "state": "California"
        },
        {
          "city": "Huntington Park",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05630846"
    },
    {
      "nct_id": "NCT06224270",
      "title": "Study of Response to Zoster Vaccine in Adults with Inflammatory Bowel Disease Treated with Medications",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Inflammatory Bowel Diseases",
        "IBD"
      ],
      "interventions": [
        {
          "name": "Adjuvanted Recombinant Zoster Vaccine (RZV)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "19 Years to 85 Years"
      },
      "enrollment_count": 0,
      "start_date": "2024-10",
      "completion_date": "2027-09",
      "has_results": false,
      "last_update_posted_date": "2024-09-25",
      "last_synced_at": "2026-09-19T06:55:04.892Z",
      "location_count": 6,
      "location_summary": "Jacksonville, Florida • Baltimore, Maryland • New York, New York + 3 more",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06224270"
    },
    {
      "nct_id": "NCT06736041",
      "title": "Study of a 4-Dose Regimen of a 21-valent Pneumococcal Conjugate Vaccine in Healthy Infants From Approximately 2 Months of Age",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Immunization"
      ],
      "interventions": [
        {
          "name": "PCV21 vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Prevnar 20 vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "M-M-R II vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "RotaTeq",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Vaxelis vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Varivax",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Hexaxim Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi Pasteur, a Sanofi Company",
      "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": 1714,
      "start_date": "2024-12-18",
      "completion_date": "2027-05-17",
      "has_results": false,
      "last_update_posted_date": "2026-04-22",
      "last_synced_at": "2026-09-19T06:55:04.892Z",
      "location_count": 66,
      "location_summary": "Glendale, Arizona • Tucson, Arizona • Fayetteville, Arkansas + 48 more",
      "locations": [
        {
          "city": "Glendale",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Huntington Park",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06736041"
    },
    {
      "nct_id": "NCT01288014",
      "title": "Cytokine Production and Immunity to Varicella Zoster Virus (VZV) in Elderly Recipients of Zoster Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Immunity; Defect Due to Antibody or Cell Mediated Immune Defect"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "60 Years to 80 Years"
      },
      "enrollment_count": 26,
      "start_date": "2011-01",
      "completion_date": "2012-03",
      "has_results": false,
      "last_update_posted_date": "2017-07-19",
      "last_synced_at": "2026-09-19T06:55:04.892Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01288014"
    },
    {
      "nct_id": "NCT02960399",
      "title": "Assessment of Immunogenicity of Zostavax® in Patients With Antibody Deficiency 60 Years of Age and Older",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Common Variable Immune Deficiency",
        "Specific Antibody Deficiency",
        "X-linked Agammaglobulinemia"
      ],
      "interventions": [
        {
          "name": "Zostavax®",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "University of South Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 2,
      "start_date": "2015-12",
      "completion_date": "2017-12",
      "has_results": false,
      "last_update_posted_date": "2018-05-31",
      "last_synced_at": "2026-09-19T06:55:04.892Z",
      "location_count": 1,
      "location_summary": "St. Petersburg, Florida",
      "locations": [
        {
          "city": "St. Petersburg",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02960399"
    },
    {
      "nct_id": "NCT06375512",
      "title": "A Study to Describe the Safety, Reactogenicity, and Immunogenicity of Herpes Zoster IN001 mRNA Vaccine (IN001) in Healthy Participants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Herpes Zoster"
      ],
      "interventions": [
        {
          "name": "HZ Vaccine (IN001)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Shingrix",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Shenzhen Shenxin Biotechnology Co., Ltd",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "69 Years",
        "sex": "ALL",
        "summary": "50 Years to 69 Years"
      },
      "enrollment_count": 150,
      "start_date": "2024-07-05",
      "completion_date": "2026-02-20",
      "has_results": false,
      "last_update_posted_date": "2026-03-31",
      "last_synced_at": "2026-09-19T06:55:04.892Z",
      "location_count": 1,
      "location_summary": "Hollywood, Florida",
      "locations": [
        {
          "city": "Hollywood",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06375512"
    }
  ]
}