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Showing 1–24 of 85 matching trials from the live ClinicalTrials.gov search.
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Completed Phase 1 Interventional

GMCI, Nivolumab, and Radiation Therapy in Treating Patients With Newly Diagnosed High-Grade Gliomas

NCT03576612
View directory record Official record
Conditions
Glioma, Malignant
Interventions
AdV-tk, Valacyclovir, Radiation, Temozolomide, Nivolumab, Laboratory Biomarker Analysis
Biological · Drug · Radiation + 1 more
Lead sponsor
Candel Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
5
States / cities
Boston, Massachusetts • Detroit, Michigan • Winston-Salem, North Carolina + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 13, 2025 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Phase 1 Interventional Results available

Valacyclovir in Neonatal Herpes Simplex Virus Disease

NCT04448392
View directory record Official record
Conditions
Neonatal Herpes Simplex Infection
Interventions
Valacyclovir
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
2 Weeks to 12 Weeks
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jun 23, 2025 · Synced Sep 3, 2026, 5:08 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 Jul 29, 2025 · Synced Sep 3, 2026, 5:08 AM EDT
Recruiting Phase 4 Interventional

VZV in the Enteric Nervous System: Pathogenesis and Consequences

NCT05550194
View directory record Official record
Conditions
Achalasia
Interventions
ValACYclovir 1000 MG, Shingrix
Drug · Biological
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 26, 2026 · Synced Sep 3, 2026, 5:08 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 21, 2026 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Impact of Metformin and Polysorbate 80 on Drug Absorption and Disposition

NCT04640571
View directory record Official record
Conditions
Bile Salt Export Pump (BSEP) Transporter, Polysorbate 80
Interventions
pravastatin and chenodeoxycholic acid, after metformin and placebo, valacyclovir, chenodeoxycholic acid, and enalaprilat, after polysorbate 80 and placebo
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 15, 2024 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Phase 2 Interventional

Oral Valganciclovir Versus Valacyclovir

NCT00562770
View directory record Official record
Conditions
Chronic Lymphocytic Leukemia, Leukemia
Interventions
Valganciclovir, Valacyclovir
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
16 Years and older
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 30, 2012 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

VALTREX Once Daily For Viral Shedding In Herpes Simplex Virus 2 (HSV-2) Seropositive Subjects. VALTREX® Tablet is a Trademark of GlaxoSmithKline Group of Companies.

NCT00116844
View directory record Official record
Conditions
Infections, Herpesviridae
Interventions
Valaciclovir, Placebo
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
73 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
17
States / cities
Carmichael, California • Davis, California • Riverside, California + 13 more
Source: ClinicalTrials.gov public record
Updated Feb 11, 2018 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Phase 2 Interventional Results available

Research Study of Bipolar Mood Symptoms and Cognitive Problems

NCT00428298
View directory record Official record
Conditions
Bipolar Disorder
Interventions
Valacyclovir, Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 10, 2017 · Synced Sep 3, 2026, 5:08 AM EDT
Active, not recruiting Phase 2 Interventional Results available

Bortezomib and Rituximab for Patients With Waldenstrom's Macroglobulinemia

NCT00492050
View directory record Official record
Conditions
Waldenstrom's Macroglobulinemia
Interventions
Bortezomib, Rituximab, Valacyclovir
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
Not listed
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 10, 2026 · Synced Sep 3, 2026, 5:08 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 21, 2017 · Synced Sep 3, 2026, 5:08 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 3, 2008 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Phase 4 Interventional Results available

A Study Comparing Daily Treatment With Valaciclovir To Placebo For Suppression Of Herpes Simplex Virus HSV-2 Genital Herpes In Newly Diagnosed Patients. VALTREX® Tablet is a Trademark of the GlaxoSmithKline Group of Companies.

NCT00158860
View directory record Official record
Conditions
Herpes Genitalis
Interventions
Valaciclovir, Placebo
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
384 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
58
States / cities
Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 50 more
Source: ClinicalTrials.gov public record
Updated Feb 14, 2019 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Phase 3 Interventional

A Study of Valacyclovir Hydrochloride in the Prevention of Life-Threatening Cytomegalovirus Disease in HIV-Infected Patients

NCT00001038
View directory record Official record
Conditions
Cytomegalovirus Infections, HIV Infections
Interventions
Valacyclovir hydrochloride, Acyclovir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
1,200 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
21
States / cities
Birmingham, Alabama • Los Angeles, California • Oakland, California + 16 more
Source: ClinicalTrials.gov public record
Updated Feb 28, 2011 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Valacyclovir in the Reduction of HSV-2 Recurrence and Shedding

NCT00803543
View directory record Official record
Conditions
HIV, HIV Infections
Interventions
Valacyclovir, Placebo
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years and older
Enrollment
103 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jul 12, 2017 · Synced Sep 3, 2026, 5:08 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 24, 2023 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Phase 2 Interventional Results available

Systematic Evaluation of Antiviral Medication in Schizophrenia

NCT00514449
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Valacyclovir, Placebo
Drug
Lead sponsor
Konasale Prasad
Other
Eligibility
18 Years to 50 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2016
U.S. locations
2
States / cities
Detroit, Michigan • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 13, 2018 · Synced Sep 3, 2026, 5:08 AM EDT
Recruiting Phase 1Phase 2 Interventional

HSV-tk + Valacyclovir Therapy in Combination With Brachytherapy for Recurrent Prostate Cancer

NCT01913106
View directory record Official record
Conditions
Prostatic Neoplasms
Interventions
HSV-tk +Valacyclovir in Combination with Brachytherapy
Drug
Lead sponsor
The Methodist Hospital Research Institute
Other
Eligibility
Male only
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2028
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 30, 2016 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Phase 2 Interventional Results available

A Double-Blind Trial of Adjunctive Valacyclovir to Improve Cognition in Early Phase Schizophrenia

NCT02008773
View directory record Official record
Conditions
Schizophrenia
Interventions
Valacyclovir HCI 500 mg tablets, placebo
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 40 Years
Enrollment
170 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
13
States / cities
Bellflower, California • Los Angeles, California • Riverside, California + 9 more
Source: ClinicalTrials.gov public record
Updated Jan 29, 2019 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Phase 2 Interventional Results available

Valacyclovir for Mild Cognitive Impairment

NCT04710030
View directory record Official record
Conditions
Mild Cognitive Impairment, Herpes Simplex 1, Herpes Simplex 2
Interventions
Valacyclovir hydrochloride 500mg caplet, Placebo sugar pill caplet
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
50 Years to 95 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 30, 2026 · Synced Sep 3, 2026, 5:08 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 21, 2016 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Phase 2 Interventional Results available

ValGanciclovir Versus ValAcyclovir for Viral Prophylaxis in Kidney Transplantation

NCT01972035
View directory record Official record
Conditions
Transplantation Infection, Epstein-Barr Virus Infections, Cytomegalovirus Infections
Interventions
Valacyclovir, Valganciclovir
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
Not listed
Enrollment
137 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 11, 2022 · Synced Sep 3, 2026, 5:08 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Study Comparing the Safety of ASP2151 to Valacyclovir and Placebo in Healthy Volunteers

NCT00870441
View directory record Official record
Conditions
Safety of ASP2151
Interventions
ASP2151, Valacyclovir, Placebo
Drug
Lead sponsor
Astellas Pharma Inc
Industry
Eligibility
18 Years to 65 Years
Enrollment
442 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
5
States / cities
Daytona Beach, Florida • Honolulu, Hawaii • Evansville, Indiana + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 27, 2013 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Phase 2 Interventional

Valacyclovir Plus Celecoxib for Post-Acute Sequelae of SARS-CoV-2

NCT06316843
View directory record Official record
Conditions
Long COVID, PASC Post Acute Sequelae of COVID 19
Interventions
Valacyclovir celecoxib dose 1, Valacyclovir celecoxib dose 2, Placebo
Drug
Lead sponsor
Bateman Horne Center
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jan 21, 2025 · Synced Sep 3, 2026, 5:08 AM EDT