{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Candidate+varicella+vaccine",
    "query": {
      "intervention": "Candidate varicella vaccine"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 9,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-27T11:17:10.067Z",
  "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": "NCT01702428",
      "title": "Consistency Study of GlaxoSmithKline (GSK) Biologicals' MMR Vaccine (209762) (Priorix) Comparing Immunogenicity and Safety to Merck & Co., Inc.'s MMR Vaccine (M-M-R II), in Children 12 to 15 Months of Age",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Rubella",
        "Measles",
        "Mumps"
      ],
      "interventions": [
        {
          "name": "Priorix",
          "type": "BIOLOGICAL"
        },
        {
          "name": "M-M-R II",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Varivax",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Havrix",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Prevnar 13",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Months",
        "maximum_age": "15 Months",
        "sex": "ALL",
        "summary": "12 Months to 15 Months"
      },
      "enrollment_count": 5016,
      "start_date": "2012-11-09",
      "completion_date": "2015-04-16",
      "has_results": true,
      "last_update_posted_date": "2019-11-25",
      "last_synced_at": "2026-09-27T11:17:10.067Z",
      "location_count": 62,
      "location_summary": "Dothan, Alabama • Phoenix, Arizona • Fayetteville, Arkansas + 56 more",
      "locations": [
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Daly City",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01702428"
    },
    {
      "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": "2026-09-27T11:17:10.067Z",
      "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": "NCT02979639",
      "title": "Study to Evaluate the Impact of Reactogenicity on Quality of Life (QoL), After Administration of GlaxoSmithKline (GSK) Biologicals' Candidate Herpes Zoster Subunit (HZ/su) Vaccine (GSK1437173A) in Adults ≥ 50 Years of Age",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Herpes Zoster"
      ],
      "interventions": [
        {
          "name": "GSK Biologicals Herpes Zoster subunit (HZ/su) vaccine (GSK 1437173A)",
          "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": 404,
      "start_date": "2017-01-16",
      "completion_date": "2018-05-24",
      "has_results": true,
      "last_update_posted_date": "2019-10-08",
      "last_synced_at": "2026-09-27T11:17:10.067Z",
      "location_count": 11,
      "location_summary": "Oakland, California • Aurora, Colorado • Colorado Springs, Colorado + 7 more",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Colorado Springs",
          "state": "Colorado"
        },
        {
          "city": "Colorado Springs",
          "state": "Colorado"
        },
        {
          "city": "Meridian",
          "state": "Idaho"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02979639"
    },
    {
      "nct_id": "NCT05703607",
      "title": "A Study to Learn About a Modified RNA Vaccine Against Shingles in Healthy Adults",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Shingles",
        "Herpes Zoster Infection",
        "Human"
      ],
      "interventions": [
        {
          "name": "Candidate 1: PF-07915234: VZV modRNA Powder for Suspension for Injection",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Candidate 1: PF-07915234: VZV modRNA Suspension for Injection",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Candidate 2: PF-07921188: VZV modRNA Suspension for Injection",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Candidate 3: PF-07921186: VZV modRNA Suspension for Injection",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Shingrix",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Candidate 2: PF-07921188: VZV modRNA Powder for Suspension for Injection",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "50 Years to 85 Years"
      },
      "enrollment_count": 484,
      "start_date": "2023-01-25",
      "completion_date": "2025-09-23",
      "has_results": false,
      "last_update_posted_date": "2026-05-04",
      "last_synced_at": "2026-09-27T11:17:10.067Z",
      "location_count": 35,
      "location_summary": "Gilbert, Arizona • Mesa, Arizona • Palo Alto, California + 24 more",
      "locations": [
        {
          "city": "Gilbert",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Walnut Creek",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05703607"
    },
    {
      "nct_id": "NCT01610414",
      "title": "Study to Evaluate Efficacy, Safety, and Immunogenicity of GlaxoSmithKline (GSK) Biologicals' Herpes Zoster Vaccine GSK1437173A",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "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": 1877,
      "start_date": "2012-07-13",
      "completion_date": "2017-02-01",
      "has_results": true,
      "last_update_posted_date": "2018-01-23",
      "last_synced_at": "2026-09-27T11:17:10.067Z",
      "location_count": 23,
      "location_summary": "Duarte, California • San Francisco, California • Aurora, Colorado + 16 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Westwood",
          "state": "Kansas"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01610414"
    },
    {
      "nct_id": "NCT06855160",
      "title": "A Study on the Immune Response and Safety of an Investigational Chickenpox Vaccine and a Marketed Measles, Mumps and Rubella Vaccine When Administered as Intramuscular Injection to Healthy Children 12 to 15 Months of Age",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chickenpox"
      ],
      "interventions": [
        {
          "name": "Candidate varicella vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Marketed varicella vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "MMR vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Hepatitis A vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "PCV (pneumococcal conjugate vaccine) 13",
          "type": "BIOLOGICAL"
        },
        {
          "name": "PCV 20",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Vaxneuvance",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Months",
        "maximum_age": "15 Months",
        "sex": "ALL",
        "summary": "12 Months to 15 Months"
      },
      "enrollment_count": 911,
      "start_date": "2025-04-17",
      "completion_date": "2027-02-02",
      "has_results": false,
      "last_update_posted_date": "2026-05-29",
      "last_synced_at": "2026-09-27T11:17:10.067Z",
      "location_count": 13,
      "location_summary": "Tucson, Arizona • Huntington Park, California • Sherman Oaks, California + 10 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Huntington Park",
          "state": "California"
        },
        {
          "city": "Sherman Oaks",
          "state": "California"
        },
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "Miami Lakes",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06855160"
    },
    {
      "nct_id": "NCT01767467",
      "title": "Study to Assess the Safety and Immunogenicity of GlaxoSmithKline (GSK) Biologicals' Herpes Zoster Subunit (HZ/su) Vaccine in Adults Aged 18 Years and Older With Blood Cancers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Herpes Zoster"
      ],
      "interventions": [
        {
          "name": "Herpes zoster vaccine (GSK 1437173A)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "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": 568,
      "start_date": "2013-03-01",
      "completion_date": "2017-01-06",
      "has_results": true,
      "last_update_posted_date": "2018-06-06",
      "last_synced_at": "2026-09-27T11:17:10.067Z",
      "location_count": 8,
      "location_summary": "Inverness, Florida • Chicago, Illinois • Elkhart, Indiana + 5 more",
      "locations": [
        {
          "city": "Inverness",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Elkhart",
          "state": "Indiana"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01767467"
    },
    {
      "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": "2026-09-27T11:17:10.067Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02114333"
    },
    {
      "nct_id": "NCT00861744",
      "title": "Immunogenicity of GSKs' MMR Vaccine (209762) vs. M-M-R® II, When Given With Routine Vaccines at 12-15 Months of Age",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Rubella",
        "Mumps",
        "Measles",
        "Measles-Mumps-Rubella Vaccine"
      ],
      "interventions": [
        {
          "name": "GSK Biological's investigational vaccine 209762",
          "type": "BIOLOGICAL"
        },
        {
          "name": "M-M-R® II (Merck and Co)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Varivax®",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Havrix®",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Prevnar®",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Months",
        "maximum_age": "15 Months",
        "sex": "ALL",
        "summary": "12 Months to 15 Months"
      },
      "enrollment_count": 1259,
      "start_date": "2009-06-03",
      "completion_date": "2012-06-18",
      "has_results": true,
      "last_update_posted_date": "2020-01-03",
      "last_synced_at": "2026-09-27T11:17:10.067Z",
      "location_count": 45,
      "location_summary": "Tuscaloosa, Alabama • Conway, Arkansas • Jonesboro, Arkansas + 42 more",
      "locations": [
        {
          "city": "Tuscaloosa",
          "state": "Alabama"
        },
        {
          "city": "Conway",
          "state": "Arkansas"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Anaheim",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00861744"
    }
  ]
}