{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Varicella-zoster+vaccine&page=2",
    "query": {
      "intervention": "Varicella-zoster vaccine",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 73,
    "total_pages": 8,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Varicella-zoster+vaccine&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Varicella-zoster+vaccine&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-08T19:07:15.234Z",
  "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": "NCT05701800",
      "title": "A Study to Evaluate the Safety, Reactogenicity, and Immunogenicity of mRNA-1468 in Healthy Adults ≥50 Years of Age",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Herpes Zoster"
      ],
      "interventions": [
        {
          "name": "mRNA-1468",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Shingrix",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "ModernaTX, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 659,
      "start_date": "2023-01-23",
      "completion_date": "2025-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-05",
      "last_synced_at": "2026-10-08T19:07:15.234Z",
      "location_count": 19,
      "location_summary": "Los Angeles, California • Longmont, Colorado • Lakeland, Florida + 16 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Longmont",
          "state": "Colorado"
        },
        {
          "city": "Lakeland",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Miami Lakes",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05701800"
    },
    {
      "nct_id": "NCT01911065",
      "title": "T Cell Responses to Varicella Zoster Virus (VZV) Vaccine SLVP020",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Herpes Zoster"
      ],
      "interventions": [
        {
          "name": "Zostavax™",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 54,
      "start_date": "2010-09",
      "completion_date": "2011-12",
      "has_results": true,
      "last_update_posted_date": "2023-12-18",
      "last_synced_at": "2026-10-08T19:07:15.234Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01911065"
    },
    {
      "nct_id": "NCT01474720",
      "title": "Zostavax in Systemic Lupus Erythematosus",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Systemic Lupus Erythematosus"
      ],
      "interventions": [
        {
          "name": "Zostavax vaccine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Oklahoma Medical Research Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "50 Years to 75 Years"
      },
      "enrollment_count": 20,
      "start_date": "2011-11",
      "completion_date": "2012-10",
      "has_results": false,
      "last_update_posted_date": "2013-09-17",
      "last_synced_at": "2026-10-08T19:07:15.234Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01474720"
    },
    {
      "nct_id": "NCT03993717",
      "title": "Solid Organ Transplant SHINGRIX",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Kidney Transplant; Complications"
      ],
      "interventions": [
        {
          "name": "SHINGRIX",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 2,
      "start_date": "2020-01-30",
      "completion_date": "2020-08-08",
      "has_results": false,
      "last_update_posted_date": "2024-02-20",
      "last_synced_at": "2026-10-08T19:07:15.234Z",
      "location_count": 4,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03993717"
    },
    {
      "nct_id": "NCT02114333",
      "title": "Comparison of a Live Herpes Zoster Vaccine and a Recombinant Vaccine in 50-59 and 70-85 Year Olds",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Shingles",
        "Herpes Zoster"
      ],
      "interventions": [
        {
          "name": "Zostavax",
          "type": "BIOLOGICAL"
        },
        {
          "name": "HZ/su vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "50 Years to 85 Years"
      },
      "enrollment_count": 160,
      "start_date": "2014-05",
      "completion_date": "2020-05",
      "has_results": false,
      "last_update_posted_date": "2020-07-08",
      "last_synced_at": "2026-10-08T19:07:15.234Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02114333"
    },
    {
      "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": "2026-10-08T19:07:15.234Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03798691"
    },
    {
      "nct_id": "NCT03439657",
      "title": "Immunogenicity and Safety Study of GSK Biologicals' Herpes Zoster Vaccine GSK1437173A When Co-administered With Prevenar13 in Adults Aged 50 Years and Older",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Herpes Zoster"
      ],
      "interventions": [
        {
          "name": "HZ/su vaccine GSK1437173A",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Prevenar13",
          "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": 913,
      "start_date": "2018-04-12",
      "completion_date": "2020-03-03",
      "has_results": true,
      "last_update_posted_date": "2022-01-11",
      "last_synced_at": "2026-10-08T19:07:15.234Z",
      "location_count": 3,
      "location_summary": "Marlborough, Massachusetts • Salisbury, North Carolina • Spartanburg, South Carolina",
      "locations": [
        {
          "city": "Marlborough",
          "state": "Massachusetts"
        },
        {
          "city": "Salisbury",
          "state": "North Carolina"
        },
        {
          "city": "Spartanburg",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03439657"
    },
    {
      "nct_id": "NCT05750017",
      "title": "A Study to Evaluate Safety and Tolerability of a Recombinant Herpes Zoster Vaccine",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Herpes Zoster",
        "Vaccine-Preventable Diseases"
      ],
      "interventions": [
        {
          "name": "Low Dose Recombinant Herpes Zoster Vaccine (LZ901)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "High Dose Recombinant Herpes Zoster Vaccine (LZ901)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Beijing Luzhu Biotechnology Co., Ltd.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "50 Years to 70 Years"
      },
      "enrollment_count": 66,
      "start_date": "2023-03-23",
      "completion_date": "2024-03-15",
      "has_results": false,
      "last_update_posted_date": "2023-03-27",
      "last_synced_at": "2026-10-08T19:07:15.234Z",
      "location_count": 1,
      "location_summary": "Secaucus, New Jersey",
      "locations": [
        {
          "city": "Secaucus",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05750017"
    },
    {
      "nct_id": "NCT01165203",
      "title": "Study to Evaluate GSK Biologicals' Herpes Zoster Vaccine GSK1437173A in Human Immunodeficiency Virus (HIV)-Infected Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Herpes Zoster"
      ],
      "interventions": [
        {
          "name": "Herpes Zoster Vaccine GSK1437173A",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 123,
      "start_date": "2010-09-30",
      "completion_date": "2013-05-14",
      "has_results": true,
      "last_update_posted_date": "2018-04-30",
      "last_synced_at": "2026-10-08T19:07:15.234Z",
      "location_count": 5,
      "location_summary": "Long Beach, California • San Francisco, California • Orlando, Florida + 2 more",
      "locations": [
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Santa Fe",
          "state": "New Mexico"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01165203"
    },
    {
      "nct_id": "NCT01954251",
      "title": "Study to Evaluate the Immunogenicity and Safety of GlaxoSmithKline (GSK) Biologicals' Herpes Zoster Vaccine GSK1437173A When Co-administered With GSK Biologicals' Seasonal Influenza Vaccine GSK2321138A 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": "GSK Biologicals' quadrivalent seasonal influenza vaccine FLU-D-QIV GSK2321138A",
          "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": 829,
      "start_date": "2013-10-03",
      "completion_date": "2015-03-20",
      "has_results": true,
      "last_update_posted_date": "2018-05-02",
      "last_synced_at": "2026-10-08T19:07:15.234Z",
      "location_count": 3,
      "location_summary": "Phoenix, Arizona • Carnegie, Pennsylvania • Erie, Pennsylvania",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Carnegie",
          "state": "Pennsylvania"
        },
        {
          "city": "Erie",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01954251"
    }
  ]
}