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ClinicalTrials.gov public records Last synced Oct 18, 2026, 9:03 AM EDT

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Showing 1–24 of 85 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: valacyclovir Clear all
Terminated Phase 4 Interventional

A Clinical Research Study For The Suppression And Treatment Of Genital Herpes Infection In HIV-Infected Persons

NCT00079911
View directory record Official record
Conditions
Herpes Genitalis
Interventions
valacyclovir hydrochloride
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004
U.S. locations
3
States / cities
Altamonte Springs, Florida • Chicago, Illinois • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 24, 2020 · Synced Oct 18, 2026, 9:03 AM EDT
Recruiting Phase 2 Interventional

Phase II High Risk Prostate Cancer Trial Using Gene & Androgen Deprivation Therapies, Radiotherapy, & Surgery

NCT03541928
View directory record Official record
Conditions
High-risk Prostate Cancer, Prostate Cancer
Interventions
HSV-Tk, Valacyclovir, Bicalutamide, Leuprolide Acetate, Brachytherapy, External beam radiotherapy, Radical prostatectomy
Drug · Radiation · Procedure
Lead sponsor
The Methodist Hospital Research Institute
Other
Eligibility
18 Years and older · Male only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 6, 2021 · Synced Oct 18, 2026, 9:03 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Evaluating Three Grams Daily Valacyclovir in Patients With Chronic Hepatitis C and HSV-2 Infection (Phase I)

NCT01453075
View directory record Official record
Conditions
Chronic Hepatitis C Infection
Interventions
Valacyclovir, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Jackson, Mississippi
Source: ClinicalTrials.gov public record
Updated Nov 22, 2016 · Synced Oct 18, 2026, 9:03 AM EDT
Not yet recruiting Phase 2 Interventional

SARS-CoV-2 and Herpesvirus Inhibition for Ending Long COVID Dysfunction

NCT07597902
View directory record Official record
Conditions
Post-acute Sequelae of COVID-19, Long COVID
Interventions
Valacyclovir, Celecoxib, Paxlovid, Placebo
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years to 65 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Oct 18, 2026, 9:03 AM EDT
Active, not recruiting Phase 2 Interventional

Randomized Controlled Trial of CAN-2409 Immunotherapy During Active Surveillance for Prostate Cancer (ULYSSES)

NCT02768363
View directory record Official record
Conditions
Prostate Cancer
Interventions
aglatimagene besadenovec, placebo, valacyclovir
Biological · Drug
Lead sponsor
Candel Therapeutics, Inc.
Industry
Eligibility
18 Years and older · Male only
Enrollment
187 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2026
U.S. locations
22
States / cities
Golden, Colorado • Chicago, Illinois • New Orleans, Louisiana + 18 more
Source: ClinicalTrials.gov public record
Updated Oct 2, 2026 · Synced Oct 18, 2026, 9:03 AM EDT
Withdrawn Not applicable Interventional

Valacyclovir Suppression to Improve the Stability of Vaginal Flora Among HSV-2 Seropositive Women

NCT00682721
View directory record Official record
Conditions
Bacterial Vaginosis, Herpes Simplex Virus Type II
Interventions
Placebo, Valacyclovir
Drug
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 40 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 2, 2012 · Synced Oct 18, 2026, 9:03 AM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Famciclovir 1-day Treatment Compared to 3-day Treatment With Valacyclovir in Adults With Recurrent Genital Herpes

NCT00306787
View directory record Official record
Conditions
Genital Herpes
Interventions
Famciclovir, Valacyclovir, Placebo matching famciclovir, Placebo matching valacyclovir
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
1,179 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
51
States / cities
Birmingham, Alabama • Chandler, Arizona • Phoenix, Arizona + 45 more
Source: ClinicalTrials.gov public record
Updated Jun 30, 2011 · Synced Oct 18, 2026, 9:03 AM EDT
Not listed Phase 3 Interventional

A Study of Valacyclovir as Treatment for Genital Herpes Simplex Virus in HIV-Infected Patients

NCT00005663
View directory record Official record
Conditions
Herpes Simplex, HIV Infections, Herpes Genitalis
Interventions
Valacyclovir hydrochloride
Drug
Lead sponsor
Glaxo Wellcome
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1999
U.S. locations
20
States / cities
Berkeley, California • Beverly Hills, California • Los Angeles, California + 17 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 18, 2026, 9:03 AM EDT
Recruiting Phase 3 Interventional

Aglatimagene Besadenovec + Prodrug and Pembrolizumab vs Docetaxel for Stage IV Non-Squamous NSCLC Progressing on Pembrolizumab (AURORA)

NCT07660094
View directory record Official record
Conditions
Non-squamous, Non-Small Cell Lung Cancer
Interventions
Aglatimagene Besadenovec, Valacyclovir, Pembrolizumab, Docetaxel
Biological · Drug
Lead sponsor
Candel Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Oct 18, 2026, 9:03 AM EDT
Completed Phase 1 Interventional

Phase 1b Study of AdV-tk + Valacyclovir Combined With Radiation Therapy for Malignant Gliomas

NCT00751270
View directory record Official record
Conditions
Malignant Glioma, Glioblastoma Multiforme, Anaplastic Astrocytoma
Interventions
AdV-tk, Valacyclovir
Biological · Drug
Lead sponsor
Candel Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2011
U.S. locations
2
States / cities
Columbus, Ohio • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 25, 2023 · Synced Oct 18, 2026, 9:03 AM EDT
Completed Not applicable Interventional

A Study to Compare the Efficacy and Safety of Valacyclovir Hydrochloride ( 256U87 ) Versus Acyclovir in the Treatment of Recurrent Anogenital Herpes Infections in HIV Infected Patients

NCT00002000
View directory record Official record
Conditions
Herpes Simplex, HIV Infections
Interventions
Valacyclovir hydrochloride, Acyclovir
Drug
Lead sponsor
Glaxo Wellcome
Industry
Eligibility
13 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
22
States / cities
Mobile, Alabama • San Francisco, California • Denver, Colorado + 17 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 18, 2026, 9:03 AM EDT
Terminated Phase 3 Interventional

A Comparative Study of FV-100 vs. Valacyclovir for the Prevention of Post-Herpetic Neuralgia

NCT02412917
View directory record Official record
Conditions
Shingles, Herpes Zoster, Postherpetic Neuralgia
Interventions
FV-100, valacyclovir
Drug
Lead sponsor
ContraVir Pharmaceuticals, Inc.
Industry
Eligibility
30 Years and older
Enrollment
237 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Webster, Texas
Source: ClinicalTrials.gov public record
Updated Dec 22, 2017 · Synced Oct 18, 2026, 9:03 AM EDT
Recruiting Phase 1Phase 2 Interventional

Study of an AAV Mediated Dual-Payload Gene Therapy in Patients With High Grade Glioma

NCT07346144
View directory record Official record
Conditions
Glioblastoma (GBM), High Grade Gliomas, Recurrent Glioblastoma, Newly Diagnosed Glioblastoma
Interventions
TGX-007, Valaciclovir
Drug
Lead sponsor
Trogenix ltd
Industry
Eligibility
18 Years to 70 Years
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2033
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 12, 2026 · Synced Oct 18, 2026, 9:03 AM EDT
Completed Phase 3 Interventional

Valaciclovir to Prevent Transmission of Herpes Simplex Virus

NCT00001649
View directory record Official record
Conditions
Herpes Simplex
Interventions
Valaciclovir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Not listed
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 18, 2026, 9:03 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Fasting Study of Valacyclovir Hydrochloride Tablets 1000 mg and Valtrex® Tablets 1000 mg

NCT00649974
View directory record Official record
Conditions
Healthy
Interventions
Valacyclovir Hydrochloride Tablets 1000 mg, Valtrex® Tablets 1000 mg
Drug
Lead sponsor
Mylan Pharmaceuticals Inc
Industry
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005
U.S. locations
1
States / cities
Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Apr 23, 2024 · Synced Oct 18, 2026, 9:03 AM EDT
Completed Phase 4 Interventional Results available

Zoster Eye Disease Study

NCT03134196
View directory record Official record
Conditions
Herpes Zoster Ophthalmicus
Interventions
Masked Placebo, Masked Oral Valacyclovir
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
527 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
71
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Little Rock, Arkansas + 58 more
Source: ClinicalTrials.gov public record
Updated Mar 7, 2025 · Synced Oct 18, 2026, 9:03 AM EDT
Completed Phase 2 Interventional Results available

Phase 2a Study of CAN-2409 With Standard Radiation Therapy for Malignant Glioma

NCT00589875
View directory record Official record
Conditions
Malignant Glioma, Glioblastoma Multiforme, Anaplastic Astrocytoma, High Grade Glioma
Interventions
CAN-2409, Valacyclovir, Temozolomide, Radiation therapy
Biological · Drug · Radiation
Lead sponsor
Candel Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2016
U.S. locations
4
States / cities
Duarte, California • Chicago, Illinois • Columbus, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 3, 2024 · Synced Oct 18, 2026, 9:03 AM EDT
Not listed Phase 2 Interventional

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)

NCT00652184
View directory record Official record
Conditions
Herpes Zoster, Postherpetic Neuralgia
Interventions
ARYS-01 (sorivudine) cream 3% or placebo cream, placebo, valaciclovir
Drug
Lead sponsor
aRigen Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
10
States / cities
Beverly Hills, California • Encino, California • Vista, California + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 7, 2008 · Synced Oct 18, 2026, 9:03 AM EDT
Completed Phase 1 Interventional

Intratumoral Gene Mediated Cytotoxic Immunotherapy in Patients With Resectable Non-Small Cell Lung Cancer

NCT03131037
View directory record Official record
Conditions
Lung Cancer
Interventions
CAN-2409 + valacyclovir
Biological
Lead sponsor
Candel Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 11, 2025 · Synced Oct 18, 2026, 9:03 AM EDT
Recruiting Phase 1Phase 2 Interventional

HSV-tk and XRT and Chemotherapy for Newly Diagnosed GBM

NCT03603405
View directory record Official record
Conditions
Glioblastoma, Anaplastic Astrocytoma
Interventions
ADV/HSV-tk (gene therapy)
Drug
Lead sponsor
The Methodist Hospital Research Institute
Other
Eligibility
18 Years and older
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 30, 2026 · Synced Oct 18, 2026, 9:03 AM EDT
Completed Phase 3 Interventional

Valacyclovir in Preventing Cytomegalovirus Infection in Patients Who Are Undergoing Donor Stem Cell Transplantation

NCT00045292
View directory record Official record
Conditions
Cancer
Interventions
acyclovir, acyclovir sodium, valacyclovir
Drug
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
12 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2004
U.S. locations
6
States / cities
Duarte, California • Stanford, California • Omaha, Nebraska + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2010 · Synced Oct 18, 2026, 9:03 AM EDT
Completed Not applicable Interventional

A Comparative Trial of Valacyclovir Hydrochloride ( 256U87 ) and Acyclovir for the Suppression of Anogenital Herpes Infections in HIV-Infected Patients

NCT00002084
View directory record Official record
Conditions
Herpes Simplex, HIV Infections
Interventions
Valacyclovir hydrochloride, Acyclovir
Drug
Lead sponsor
Glaxo Wellcome
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
46
States / cities
Mobile, Alabama • Tucson, Arizona • Los Angeles, California + 29 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 18, 2026, 9:03 AM EDT
Terminated Phase 2 Interventional Results available

Trial of Radiation and Gene Therapy Before Nivolumab for Metastatic Non-Small Cell Lung Carcinoma and Uveal Melanoma

NCT02831933
View directory record Official record
Conditions
Lung Squamous Cell Carcinoma Stage IV, Nonsquamous Nonsmall Cell Neoplasm of Lung, Metastatic Uveal Melanoma
Interventions
ADV/HSV-tk, Valacyclovir, SBRT, nivolumab
Biological · Drug · Radiation
Lead sponsor
Eric Bernicker, MD
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 21, 2023 · Synced Oct 18, 2026, 9:03 AM EDT
Completed Phase 4 Interventional Results available

VALTREX(Valacyclovir) Once Daily for Viral Shedding In Subjects Newly Diagnosed With HSV-2

NCT00306293
View directory record Official record
Conditions
Herpes Labialis
Interventions
valacyclovir
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006
U.S. locations
18
States / cities
Anaheim, California • Carmichael, California • Fair Oaks, California + 14 more
Source: ClinicalTrials.gov public record
Updated Mar 23, 2018 · Synced Oct 18, 2026, 9:03 AM EDT