{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=valacyclovir",
    "query": {
      "intervention": "valacyclovir"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 85,
    "total_pages": 9,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=valacyclovir&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-04T15:14:14.186Z",
  "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": "NCT01580995",
      "title": "Herpes Simplex Type 1 Suppression in Hepatitis C",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Hepatitis C Infection"
      ],
      "interventions": [
        {
          "name": "Valacyclovir",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 19,
      "start_date": "2012-04",
      "completion_date": "2015-03",
      "has_results": true,
      "last_update_posted_date": "2016-09-21",
      "last_synced_at": "2026-09-04T15:14:14.186Z",
      "location_count": 1,
      "location_summary": "Jackson, Mississippi",
      "locations": [
        {
          "city": "Jackson",
          "state": "Mississippi"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01580995"
    },
    {
      "nct_id": "NCT03131037",
      "title": "Intratumoral Gene Mediated Cytotoxic Immunotherapy in Patients With Resectable Non-Small Cell Lung Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Lung Cancer"
      ],
      "interventions": [
        {
          "name": "CAN-2409 + valacyclovir",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Candel Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2017-05-04",
      "completion_date": "2023-09-20",
      "has_results": false,
      "last_update_posted_date": "2025-07-11",
      "last_synced_at": "2026-09-04T15:14:14.186Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03131037"
    },
    {
      "nct_id": "NCT00587496",
      "title": "30-Day Trial of Oral Valtrex or Valtrex Plus Aspirin on Shedding of HSV DNA in Tears and Saliva of Volunteers",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Herpes Simplex"
      ],
      "interventions": [
        {
          "name": "valacyclovir hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        },
        {
          "name": "valacyclovir plus aspirin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Eye Institute (NEI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "20 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2006-04",
      "completion_date": "2008-07",
      "has_results": false,
      "last_update_posted_date": "2008-01-07",
      "last_synced_at": "2026-09-04T15:14:14.186Z",
      "location_count": 2,
      "location_summary": "New Orleans, Louisiana",
      "locations": [
        {
          "city": "New Orleans",
          "state": "Louisiana"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00587496"
    },
    {
      "nct_id": "NCT02412917",
      "title": "A Comparative Study of FV-100 vs. Valacyclovir for the Prevention of Post-Herpetic Neuralgia",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Shingles",
        "Herpes Zoster",
        "Postherpetic Neuralgia"
      ],
      "interventions": [
        {
          "name": "FV-100",
          "type": "DRUG"
        },
        {
          "name": "valacyclovir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "ContraVir Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 237,
      "start_date": "2015-06",
      "completion_date": "2017-11",
      "has_results": false,
      "last_update_posted_date": "2017-12-22",
      "last_synced_at": "2026-09-04T15:14:14.186Z",
      "location_count": 1,
      "location_summary": "Webster, Texas",
      "locations": [
        {
          "city": "Webster",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02412917"
    },
    {
      "nct_id": "NCT05266040",
      "title": "Valacyclovir in Pain Management of Acute Apical Abscesses",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Acute Apical Abscess",
        "Pain, Acute"
      ],
      "interventions": [
        {
          "name": "Valacyclovir 500 MG",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 60,
      "start_date": "2023-10-25",
      "completion_date": "2025-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-05-30",
      "last_synced_at": "2026-09-04T15:14:14.186Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05266040"
    },
    {
      "nct_id": "NCT00001038",
      "title": "A Study of Valacyclovir Hydrochloride in the Prevention of Life-Threatening Cytomegalovirus Disease in HIV-Infected Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Cytomegalovirus Infections",
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Valacyclovir hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Acyclovir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "13 Years and older"
      },
      "enrollment_count": 1200,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2011-03-01",
      "last_synced_at": "2026-09-04T15:14:14.186Z",
      "location_count": 21,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • Oakland, California + 16 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00001038"
    },
    {
      "nct_id": "NCT03576612",
      "title": "GMCI, Nivolumab, and Radiation Therapy in Treating Patients With Newly Diagnosed High-Grade Gliomas",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Glioma, Malignant"
      ],
      "interventions": [
        {
          "name": "AdV-tk",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Valacyclovir",
          "type": "DRUG"
        },
        {
          "name": "Radiation",
          "type": "RADIATION"
        },
        {
          "name": "Temozolomide",
          "type": "DRUG"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "RADIATION",
        "OTHER"
      ],
      "sponsor": "Candel Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 41,
      "start_date": "2018-02-27",
      "completion_date": "2023-06-30",
      "has_results": false,
      "last_update_posted_date": "2025-02-14",
      "last_synced_at": "2026-09-04T15:14:14.186Z",
      "location_count": 5,
      "location_summary": "Boston, Massachusetts • Detroit, Michigan • Winston-Salem, North Carolina + 2 more",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03576612"
    },
    {
      "nct_id": "NCT00562770",
      "title": "Oral Valganciclovir Versus Valacyclovir",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Lymphocytic Leukemia",
        "Leukemia"
      ],
      "interventions": [
        {
          "name": "Valganciclovir",
          "type": "DRUG"
        },
        {
          "name": "Valacyclovir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "16 Years and older"
      },
      "enrollment_count": 46,
      "start_date": "2003-09",
      "completion_date": "2006-07",
      "has_results": false,
      "last_update_posted_date": "2012-07-31",
      "last_synced_at": "2026-09-04T15:14:14.186Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00562770"
    },
    {
      "nct_id": "NCT00042328",
      "title": "A Pharmacokinetic Study of Valacyclovir in Pediatric Oncology Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Neoplasms"
      ],
      "interventions": [
        {
          "name": "Valacyclovir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Baylor College of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "2 Years to 18 Years"
      },
      "enrollment_count": 30,
      "start_date": "2001-08",
      "completion_date": "2005-05",
      "has_results": false,
      "last_update_posted_date": "2015-08-24",
      "last_synced_at": "2026-09-04T15:14:14.186Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00042328"
    },
    {
      "nct_id": "NCT07332000",
      "title": "A Biomarker Study in Men With Localized Prostate Cancer Treated With Aglatimagene Besadenovec",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer Patients Treated by Radiotherapy",
        "Prostate Cancer (Adenocarcinoma)"
      ],
      "interventions": [
        {
          "name": "aglatimagene besadenovec + valacyclovir",
          "type": "BIOLOGICAL"
        },
        {
          "name": "External Beam Radiation Therapy (EBRT)",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "RADIATION"
      ],
      "sponsor": "Candel Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 45,
      "start_date": "2025-10-30",
      "completion_date": "2026-08",
      "has_results": false,
      "last_update_posted_date": "2026-03-20",
      "last_synced_at": "2026-09-04T15:14:14.186Z",
      "location_count": 7,
      "location_summary": "Peoria, Arizona • Lakewood, Colorado • Littleton, Colorado + 4 more",
      "locations": [
        {
          "city": "Peoria",
          "state": "Arizona"
        },
        {
          "city": "Lakewood",
          "state": "Colorado"
        },
        {
          "city": "Littleton",
          "state": "Colorado"
        },
        {
          "city": "Towson",
          "state": "Maryland"
        },
        {
          "city": "Las Vegas",
          "state": "Nevada"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07332000"
    }
  ]
}