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Showing 1–24 of 39 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Cold Sore Clear all
Completed Phase 2 Interventional Results available

Trial on Efficacy and Safety of Pritelivir Ointment for Treatment of Labial Herpes

NCT02871492
View directory record Official record
Conditions
Herpes Labialis
Interventions
Pritelivir 5% w/w ointment, Pritelivir ointment matching placebo, Zovirax® cream
Drug
Lead sponsor
AiCuris Anti-infective Cures AG
Industry
Eligibility
18 Years and older
Enrollment
362 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
10
States / cities
Scottsdale, Arizona • Santa Rosa, California • Pinellas Park, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Jul 12, 2021 · Synced Jul 23, 2026, 6:08 PM EDT
Terminated Phase 2 Interventional Results available

A Phase 2, Muti-Center Study of Repeat Dosing of Squaric Acid Dibutyl Ester in Subjects With Herpes Labialis

NCT03521479
View directory record Official record
Conditions
Herpes Labialis, HSV
Interventions
Squaric Acid Dibutyl Ester
Drug
Lead sponsor
Squarex, LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
2
States / cities
Doral, Florida • Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 5, 2021 · Synced Jul 23, 2026, 6:08 PM EDT
Terminated Not applicable Interventional Results available

Botulinum Toxin A for Herpes Labialis

NCT01225341
View directory record Official record
Conditions
Herpes Labialis
Interventions
onabotulinumtoxinA, Bacteriostatic normal saline
Drug · Other
Lead sponsor
DeNova Research
Other
Eligibility
18 Years to 64 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 20, 2020 · Synced Jul 23, 2026, 6:08 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Double-blind, Vehicle-controlled Study of the Efficacy and Safety of SADBE in Subjects With Recurrent Herpes Labialis

NCT02965781
View directory record Official record
Conditions
Herpes Labialis, Cold Sore
Interventions
SADBE, Placebo
Drug · Other
Lead sponsor
Squarex, LLC
Industry
Eligibility
18 Years and older
Enrollment
139 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
5
States / cities
Redwood City, California • Doral, Florida • Boston, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Jul 23, 2026, 6:08 PM EDT
Completed Phase 3 Interventional Results available

Open Label Safety Study of Xerese Cream in the Treatment of Recurrent Herpes Labialis in Children 6-11 Years Old

NCT01574612
View directory record Official record
Conditions
Herpes Labialis
Interventions
acyclovir/hydrocortisone cream
Drug
Lead sponsor
Meda Pharmaceuticals
Industry
Eligibility
6 Years to 11 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
10
States / cities
Los Angeles, California • Opa-locka, Florida • West Palm Beach, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated May 21, 2014 · Synced Jul 23, 2026, 6:08 PM EDT
Completed Phase 3 Interventional Results available

Placebo-Controlled Onset-of-Action Study of Flurbiprofen Utilizing the Double-Stopwatch Method

NCT01986361
View directory record Official record
Conditions
Acute Pharyngitis, Sore Throat
Interventions
flurbiprofen, placebo
Drug
Lead sponsor
Reckitt Benckiser LLC
Industry
Eligibility
18 Years and older
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Storrs, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 27, 2017 · Synced Jul 23, 2026, 6:08 PM EDT
Completed Phase 2 Interventional

Iontophoretic Application of Acyclovir Gel to Treat Cold Sores

NCT00469300
View directory record Official record
Conditions
Herpes Labialis
Interventions
Iontophoretic delivery of acyclovir
Drug
Lead sponsor
Transport Pharmaceuticals
Industry
Eligibility
18 Years to 75 Years
Enrollment
810 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
13
States / cities
Birmingham, Alabama • Santa Rosa, California • Pinellas Park, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2008 · Synced Jul 23, 2026, 6:08 PM EDT
Completed Phase 3 Interventional Results available

Comparative Safety and Efficacy of Two Antiviral Treatments in the Treatment of Recurrent Herpes Simplex Labialis

NCT02265913
View directory record Official record
Conditions
Herpes Labialis
Interventions
Acyclovir 5 percent (Perrigo), Acyclovir 5 percent (Reference), Placebo cream
Drug
Lead sponsor
Padagis LLC
Industry
Eligibility
12 Years and older
Enrollment
4,076 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Oct 21, 2021 · Synced Jul 23, 2026, 6:08 PM EDT
Not listed Early Phase 1 Interventional Accepts healthy volunteers

Hand Sanitizer Use for Herpes Simplex Virus-1

NCT06135844
View directory record Official record
Conditions
Virus, HSV-1, Herpes Simplex 1, Herpes Simplex Labialis
Interventions
Purell Hand Sanitizer, Medical Grade Mineral Oil
Drug
Lead sponsor
Leciel Bono
Other
Eligibility
18 Years to 99 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
3
States / cities
Pocatello, Idaho • St. George, Utah
Source: ClinicalTrials.gov public record
Updated Nov 17, 2023 · Synced Jul 23, 2026, 6:08 PM EDT
Completed Phase 3 Interventional Results available

Phase 3 Clinical Study for the Treatment of Cold Sore

NCT00769314
View directory record Official record
Conditions
Herpes Labialis
Interventions
Acyclovir Lauriad, Placebo
Drug
Lead sponsor
Valerio Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
1,727 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
10
States / cities
Scottsdale, Arizona • Tucson, Arizona • San Francisco, California + 6 more
Source: ClinicalTrials.gov public record
Updated Dec 20, 2012 · Synced Jul 23, 2026, 6:08 PM EDT
Completed Phase 1 Interventional

A Safety And Tolerability Study Of Valaciclovir Oral Suspension In Infants And Children

NCT00297206
View directory record Official record
Conditions
Herpes Simplex
Interventions
Valaciclovir
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
1 Month to 6 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2007
U.S. locations
10
States / cities
Birmingham, Alabama • Little Rock, Arkansas • San Diego, California + 7 more
Source: ClinicalTrials.gov public record
Updated Sep 10, 2017 · Synced Jul 23, 2026, 6:08 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Safety and Efficacy Study of a New Treatment for Recurrent Symptoms of Oral Herpes Virus Infection

NCT01308424
View directory record Official record
Conditions
Oral Herpes Simplex
Interventions
BTL TML HSV, Matching placebo
Drug
Lead sponsor
Beech Tree Labs, Inc.
Industry
Eligibility
18 Years and older
Enrollment
171 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
4
States / cities
Lexington, Kentucky • Buffalo, New York • Norwich, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 12, 2013 · Synced Jul 23, 2026, 6:08 PM EDT
Completed Phase 1 Interventional

Effectiveness of TheraNeem Lip Therapy for Herpes Simplex Labialis

NCT00985335
View directory record Official record
Conditions
Herpes Simplex
Interventions
Neem Based External Application Cream
Other
Lead sponsor
Southern California University of Health Sciences
Other
Eligibility
18 Years to 70 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Whittier, California
Source: ClinicalTrials.gov public record
Updated Nov 17, 2011 · Synced Jul 23, 2026, 6:08 PM EDT
Completed Phase 3 Interventional Results available

A Study to Compare Sitavig (Acyclovir) Buccal Tablet With a Placebo in the Treatment of Herpes Labialis in Participants Whose Immune System Works Normally

NCT05098938
View directory record Official record
Conditions
Recurrent Herpes Labialis
Interventions
Acyclovir 50mg buccal/topical tablet, BAYM008894/UI1614773, Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older
Enrollment
2,020 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Culver City, California
Source: ClinicalTrials.gov public record
Updated Sep 1, 2025 · Synced Jul 23, 2026, 6:08 PM EDT
Completed Phase 2 Interventional

Efficacy and Safety of Acyclovir-penciclovir Cream Versus an Abreva in the Suppression of Herpes Simplex Virus Eruptions

NCT06558838
View directory record Official record
Conditions
Herpes Simplex Oral
Interventions
acyclovir-penciclovir cream, Abreva
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 80 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Murray, Utah
Source: ClinicalTrials.gov public record
Updated Jan 4, 2026 · Synced Jul 23, 2026, 6:08 PM EDT
Completed Phase 3 Interventional Results available

Famciclovir Pediatric Formulation in Children 1 to 12 Years of Age With Herpes Simplex Infection

NCT00098059
View directory record Official record
Conditions
Herpes Simplex
Interventions
Famciclovir
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
1 Year to 12 Years
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
11
States / cities
Birmingham, Alabama • Denver, Colorado • Chicago, Illinois + 8 more
Source: ClinicalTrials.gov public record
Updated Apr 24, 2013 · Synced Jul 23, 2026, 6:08 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Safety, Pharmacokinetics, and Efficacy Study of NB-001 to Treat Recurrent Herpes Labialis

NCT00453401
View directory record Official record
Conditions
Herpes Labialis
Interventions
NB-001
Drug
Lead sponsor
NanoBio Corporation
Industry
Eligibility
18 Years to 80 Years
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
28
States / cities
Huntsville, Alabama • Anaheim, California • Westlake Village, California + 23 more
Source: ClinicalTrials.gov public record
Updated May 29, 2008 · Synced Jul 23, 2026, 6:08 PM EDT
Completed Phase 2 Interventional Results available

Safety and Efficacy of Merlin (Ethanol and Glycolic Acid Mixture) for Episodic Treatment of Cold Sores

NCT03192306
View directory record Official record
Conditions
Recurrent Herpes Labialis
Interventions
Merlin, Ethanol
Drug
Lead sponsor
Topical Remedy
Industry
Eligibility
18 Years to 75 Years
Enrollment
451 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
6
States / cities
Huntsville, Alabama • San Diego, California • Melbourne, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 11, 2018 · Synced Jul 23, 2026, 6:08 PM EDT
Completed Phase 3 Interventional Results available

Zinc for the Treatment of Herpes Simplex Labialis (HSL)

NCT00809809
View directory record Official record
Conditions
Herpes Simplex Labialis
Interventions
Zicam (Ionic zinc), placebo
Drug
Lead sponsor
Integrative Medicine Institute
Other
Eligibility
18 Years to 65 Years
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
3
States / cities
Tempe, Arizona • Santa Fe, New Mexico • New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 7, 2014 · Synced Jul 23, 2026, 6:08 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

A Multicenter Study of NB-001 in the Treatment of Recurrent Herpes Labialis (SHaRCS)

NCT01324466
View directory record Official record
Conditions
Recurrent Herpes Labialis
Interventions
NB-001, Vehicle
Drug
Lead sponsor
NanoBio Corporation
Industry
Eligibility
18 Years and older
Enrollment
847 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
35
States / cities
Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 31 more
Source: ClinicalTrials.gov public record
Updated May 22, 2013 · Synced Jul 23, 2026, 6:08 PM 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 22, 2018 · Synced Jul 23, 2026, 6:08 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

A Randomized, Triple-blind, Placebo-controlled Study to Evaluate the Effects of a Throat Spray on the Incidence and Duration of Sickness

NCT07246850
View directory record Official record
Conditions
Sore-throat, Common Cold
Interventions
Beekeeper's Propolis Throat Spray, Placebo Throat Spray
Dietary Supplement
Lead sponsor
Beekeeper's Naturals Inc
Industry
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Nov 23, 2025 · Synced Jul 23, 2026, 6:08 PM EDT
Completed Phase 3 Interventional

Efficacy and Safety Study of ME-609 and Acyclovir for Treatment of Herpes Simplex Labialis

NCT00361881
View directory record Official record
Conditions
Herpes Labialis
Interventions
ME-609, acyclovir in ME-609 vehicle, Vehicle
Drug
Lead sponsor
Medivir
Industry
Eligibility
18 Years and older
Enrollment
1,443 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Mt. Pleasant, South Carolina
Source: ClinicalTrials.gov public record
Updated Aug 17, 2008 · Synced Jul 23, 2026, 6:08 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Viral Infections in Healthy and Immunocompromised Hosts

NCT01306084
View directory record Official record
Conditions
Anogenital Herpes, COVID-19, Herpes Labialis
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
6 Months to 120 Years
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2011
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 19, 2026 · Synced Jul 23, 2026, 6:08 PM EDT