{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Varicella+%28Chickenpox%29",
    "query": {
      "condition": "Varicella (Chickenpox)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 136,
    "total_pages": 14,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Varicella+%28Chickenpox%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-21T04:21:45.741Z",
  "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": "NCT06238726",
      "title": "Nudging Patients to Increase Shingles Vaccination",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Shingles",
        "Vaccination Behavior",
        "Behavior, Health"
      ],
      "interventions": [
        {
          "name": "Reminder",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Geisinger Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 50786,
      "start_date": "2024-03-25",
      "completion_date": "2025-06-30",
      "has_results": true,
      "last_update_posted_date": "2026-08-14",
      "last_synced_at": "2026-09-21T04:21:45.741Z",
      "location_count": 1,
      "location_summary": "Danville, Pennsylvania",
      "locations": [
        {
          "city": "Danville",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06238726"
    },
    {
      "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": "2026-09-21T04:21:45.741Z",
      "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": "NCT01228838",
      "title": "Study of NGX-1998 for the Treatment of Postherpetic Neuralgia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Postherpetic Neuralgia",
        "Pain"
      ],
      "interventions": [
        {
          "name": "NGX-1998",
          "type": "DRUG"
        },
        {
          "name": "Placebo Liquid",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NeurogesX",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 183,
      "start_date": "2010-10",
      "completion_date": "2011-09",
      "has_results": false,
      "last_update_posted_date": "2012-09-10",
      "last_synced_at": "2026-09-21T04:21:45.741Z",
      "location_count": 35,
      "location_summary": "Huntsville, Alabama • Tucson, Arizona • Irvine, California + 32 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Napa",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01228838"
    },
    {
      "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": "2026-09-21T04:21:45.741Z",
      "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": "2026-09-21T04:21:45.741Z",
      "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": "NCT00061776",
      "title": "NGX-4010 for the Treatment of Postherpetic Neuralgia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Herpes Zoster",
        "Neuralgia",
        "Pain",
        "Peripheral Nervous System Diseases",
        "Shingles"
      ],
      "interventions": [
        {
          "name": "Capsaicin Dermal Patch",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NeurogesX",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2008-03-06",
      "last_synced_at": "2026-09-21T04:21:45.741Z",
      "location_count": 28,
      "location_summary": "Huntsville, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 25 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00061776"
    },
    {
      "nct_id": "NCT04530162",
      "title": "Prevention of Post Herpetic Neuralgia by Ultrasound Guided Single Nerve Block in the ED",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Ultrasound guided nerve block",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Antonios Likourezos",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 0,
      "start_date": "2021-10-01",
      "completion_date": "2022-06-10",
      "has_results": false,
      "last_update_posted_date": "2022-06-16",
      "last_synced_at": "2026-09-21T04:21:45.741Z",
      "location_count": 1,
      "location_summary": "Brooklyn, New York",
      "locations": [
        {
          "city": "Brooklyn",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04530162"
    },
    {
      "nct_id": "NCT03820414",
      "title": "Safety, Tolerability, and Immunogenicity of CRV-101 in Healthy Adult Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Herpes Zoster",
        "Varicella Zoster"
      ],
      "interventions": [
        {
          "name": "CRV 101",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Curevo Inc",
      "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": 90,
      "start_date": "2019-01-03",
      "completion_date": "2020-04-30",
      "has_results": false,
      "last_update_posted_date": "2021-02-11",
      "last_synced_at": "2026-09-21T04:21:45.741Z",
      "location_count": 1,
      "location_summary": "Kansas City, Missouri",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03820414"
    },
    {
      "nct_id": "NCT01250561",
      "title": "Reduction of Postherpetic Neuralgia in Herpes Zoster",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Herpes Zoster",
        "Post-herpetic Neuralgia"
      ],
      "interventions": [
        {
          "name": "Gabapentin",
          "type": "DRUG"
        },
        {
          "name": "Valacyclovir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Center for Clinical Studies, Texas",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 133,
      "start_date": "2002-02",
      "completion_date": "2007-10",
      "has_results": false,
      "last_update_posted_date": "2010-12-01",
      "last_synced_at": "2026-09-21T04:21:45.741Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01250561"
    },
    {
      "nct_id": "NCT00652184",
      "title": "Study to Compare Efficacy of Topical ARYS-01 (Sorivudine) Cream 3%, Oral Valaciclovir and Combination ARYS-01 Cream 3%/Oral Valaciclovir for Treatment of Herpes Zoster (Shingles)",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Herpes Zoster",
        "Postherpetic Neuralgia"
      ],
      "interventions": [
        {
          "name": "ARYS-01 (sorivudine) cream 3% or placebo cream",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        },
        {
          "name": "valaciclovir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "aRigen Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2008-03",
      "completion_date": "2009-09",
      "has_results": false,
      "last_update_posted_date": "2008-10-07",
      "last_synced_at": "2026-09-21T04:21:45.741Z",
      "location_count": 10,
      "location_summary": "Beverly Hills, California • Encino, California • Vista, California + 5 more",
      "locations": [
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Encino",
          "state": "California"
        },
        {
          "city": "Vista",
          "state": "California"
        },
        {
          "city": "Henderson",
          "state": "Nevada"
        },
        {
          "city": "Las Vegas",
          "state": "Nevada"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00652184"
    }
  ]
}