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Safety, Tolerability and Therapeutic Efficacy of Topical ZEP-3 Ointment (1.0%) for the Treatment of Cold Sores

A Phase II, Randomized, Double-Blind, Parallel Group, Acyclovir-Controlled Study to Evaluate ZEP-3 Ointment for the Treatment of Cold Sores (Herpes Labialis).

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02483182
Enrollment
210
Registered
2015-06-26
Start date
2015-09-30
Completion date
2018-06-24
Last updated
2019-05-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Herpes Labialis

Keywords

Herpes labialis, Cold sores, ZEP-3 ointment

Brief summary

This is a phase II, prospective, randomized, double-blind, parallel group, acyclovir-controlled clinical study to evaluate the safety, tolerability and preliminary therapeutic efficacy of ZEP-3 ointment 1.0% for the treatment of cold sores (Herpes labialis), following five consecutive treatment days with five times daily topical administration.

Detailed description

The primary endpoint of this study are: * Time to healing - Clinician-assessed duration in days of herpes labialis episode. * Patient-assessed duration and intensity of pain by Visual Analog Scale (VAS). * Safety and tolerability following five consecutive treatment days with five times daily topical administration. The secondary endpoints of this study are: * Proportion of subjects with non - ulcerative herpes lesion. * Time for herpes labialis recurrences Subject safety will be assessed following treatment by ZEP-3 ointment 1.0% or acyclovir cream 5% treatment, using measurements of the following variables: * Physical examination, * Vital Signs (HR, BP, Body temperature), * Adverse events recording and * Concomitant medications

Interventions

DRUGZEP-3 ointment 1.0%
DRUGAcyclovir cream 5%

Sponsors

Shulov Innovate for Science Ltd. 2012
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

Prior to enrollment in this study, candidates must meet ALL of the following inclusion criteria: 1. Patients suffering from recurrent Herpes labialis with history of at least 3 cold sores recurrences during the previous 12 months. 2. Participants, either male or female are between 18 and 75 years of age. 3. Patients arrive at the clinic with any symptom of an acute Herpes labialis episode. Or, patients arrive at the clinic within 48 hours of treatment initiation for a recurrent Herpes labialis episode. 4. Patients with previous Herpes labialis episode must be healed for at least 14 days before baseline visit 5. Patients with no history of reaction to topical products. 6. Female subjects of childbearing potential must have a negative pregnancy test at screening and agree to use a proper contraceptive method during the study. 7. Participant understands the nature of the procedure and is willing and able to comply with all requirement of the protocol. 8. Patient is willing and able to provide written informed consent prior to any study procedure.

Exclusion criteria

1. Subject has abnormal skin conditions or significant facial hair at or near the investigational area 2. Subject has any body piercing in or around the area ordinarily affected by cold sores. 3. Subjects with a history of cardiac abnormalities. 4. Subject has a recent history of renal dysfunction or serious hepatic disease 5. Subject has an active malignancy or immunodeficient disease 6. Subject who is unwilling to stop using topical medical, OTC, cosmetics or facial skin care products in or around the oral area during the study period. 7. Subject requires chronic use of immunomodifying drugs or topical steroids on or near the face. 8. Subject requires chronic use of anti-viral medication. 9. Subject requires chronic use of analgesics, pain medication or non-steroidal anti inflammatory agents (NSAIDs). 10. History of allergic or adverse response to acyclovir, or any related anti-viral drug. 11. Subject has had an infection with HSV-1 isolates know to be resistant to acyclovir, valacyclovir, famciclovir, or ganciclovir. 12. Subject has had a herpes vaccine. 13. Females during pregnancy, lactation or breastfeeding. 14. Subject has a history of alcoholism or drug abuse within the preceding 12 months. 15. Subject is currently enrolled in another clinical trial involving the use of a drug and/or a device. 16. Any history which, in the Investigator's judgment, makes the subject ineligible or places the subject at undue risk. 17. Subjects with immune deficiency conditions including acquired immune deficiency.

Design outcomes

Primary

MeasureTime frame
Clinician-assessed Time to healingUp to 14 days

Secondary

MeasureTime frame
Time for Herpes labialis recurrences12 months

Countries

Israel

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026