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Trial · NCT03661541

Immune Response and General Immune Health in Subjects Infected With Herpes Simplex Virus Type 1 (HSV-1)

NCT03661541, Phase 1, Completed, Squarex, LLC; results first posted 2021-11-03

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Immune Response and General Immune Health in Subjects Infected With Herpes Simplex Virus Type 1 (HSV-1). Trials, record NCT03661541. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03661541

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Immune Response and General Immune Health in Subjects Infected With Herpes Simplex Virus Type 1 (HSV-1)
NCT number
NCT03661541
Status
Completed
Phases
Phase 1
Enrollment
36 participants, actual
Lead sponsor
Squarex, LLC
Conditions
HSV, Herpes Labialis
Interventions
Squaric Acid Dibutyl Ester
First posted
2018-09-07
Last updated
2021-11-03
Results first posted
2021-11-03

Source ClinicalTrials.gov

Registered outcomes3

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryRatio of Absolute Gene Expression of IFNG and IL5 in PBMCs Between 8 Weeks and Baseline
Baseline and 8 weeks after baseline (Day 1) +/- 7 days for subjects with less than 6 herpres labialis outbreaks in 12 months, relative to baseline for subjects with 6 or greater herpes labialis outbreaks
RNA gene expression of interleukin-5 (IL5) and interferon gamma (IFNG) genes in PBMCs exposed in vitro to 4 conditions: no stimulus, HSV-1 virus, HSV-1-infected cell extracts, and Candida albicans extract. Measure is qRT-PCR crossing threshold (Ct), where a lower number is higher gene expression. A lower Ct of 1 is approximately a 2-fold higher expression level of the gene.
PrimaryImmune Monitoring - PBMC ProliferationBaselinePBMC proliferation in response to 3 stimuli: HSV-1 virus, HSV-1-infected cell extracts, and Candida albicans extract.
PrimaryImmune Monitoring - PBMC ProliferationDay 1 and 8 weeks from Day 1 (Initial visit) +/- 7 days for subjects with 6 or more herpes labalis outbreaksPBMC proliferation in response to 3 stimuli: HSV-1 virus, HSV-1-infected cell extracts, and Candida albicans extract.

Outcomes3

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYRatio of Absolute Gene Expression of IFNG and IL5 in PBMCs Between 8 Weeks and Baseline
Baseline and 8 weeks after baseline (Day 1) +/- 7 days for subjects with less than 6 herpres labialis outbreaks in 12 months, relative to baseline for subjects with 6 or greater herpes labialis outbreaks
Absolute gene expression for Group A on Day 57, Group B on day 1 and Group C on day 1 compared to Group A on Day 1.q-RT-PCR crossing threshold cycle (Ct)MEAN
PRIMARYImmune Monitoring - PBMC ProliferationBaselinepercent proliferationMEAN
PRIMARYImmune Monitoring - PBMC ProliferationDay 1 and 8 weeks from Day 1 (Initial visit) +/- 7 days for subjects with 6 or more herpes labalis outbreaks
Only subjects with 6 or more herpes labialis outbreaks were treated, therefore only subjects with 6 or more outbreaks are included in this analysis. This set of data compares them at Day 1, before treatment, and analyzed at 8 weeks from Day 1 treatment. Data were not collected at 8 weeks on the subjects with 1 or 2 outbreaks or with zero outbreaks. Data at day 1 on those groups and the subjects with 6 or more outbreaks is reported in Outcome Measure 2.
percent proliferationMEAN

Results by group52

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Ratio of Absolute Gene Expression of IFNG and IL5 in PBMCs Between 8 Weeks and BaselineGroup A: 6 or More Herpes Labialis Outbreaks, Day 1IL5 in negative control10.073Standard Deviation 0.544q-RT-PCR crossing threshold cycle (Ct)
Ratio of Absolute Gene Expression of IFNG and IL5 in PBMCs Between 8 Weeks and BaselineGroup B: 1 or 2 Herpes Labialis Outbreaks in Prior 12 Months, Day 1IL5 in negative control11.380Standard Deviation 1.233q-RT-PCR crossing threshold cycle (Ct)
Ratio of Absolute Gene Expression of IFNG and IL5 in PBMCs Between 8 Weeks and BaselineGroup C: Zero Herpes Labialis Outbreaks in Prior 12 Months, Day 1IL5 in negative control10.711Standard Deviation 1.274q-RT-PCR crossing threshold cycle (Ct)
Ratio of Absolute Gene Expression of IFNG and IL5 in PBMCs Between 8 Weeks and BaselineGroup A, Day 57. Subjects With 6 or More Outbreaks, 8 Weeks After Single Dose of SADBE.IL5 in negative control11.431Standard Deviation 1.143q-RT-PCR crossing threshold cycle (Ct)
Ratio of Absolute Gene Expression of IFNG and IL5 in PBMCs Between 8 Weeks and BaselineGroup A: 6 or More Herpes Labialis Outbreaks, Day 1IL5 with HSV-1-infected cell extract stimulus9.624Standard Deviation 0.666q-RT-PCR crossing threshold cycle (Ct)
Ratio of Absolute Gene Expression of IFNG and IL5 in PBMCs Between 8 Weeks and BaselineGroup B: 1 or 2 Herpes Labialis Outbreaks in Prior 12 Months, Day 1IL5 with HSV-1-infected cell extract stimulus10.983Standard Deviation 0.971q-RT-PCR crossing threshold cycle (Ct)
Ratio of Absolute Gene Expression of IFNG and IL5 in PBMCs Between 8 Weeks and BaselineGroup C: Zero Herpes Labialis Outbreaks in Prior 12 Months, Day 1IL5 with HSV-1-infected cell extract stimulus10.986Standard Deviation 1.268q-RT-PCR crossing threshold cycle (Ct)
Ratio of Absolute Gene Expression of IFNG and IL5 in PBMCs Between 8 Weeks and BaselineGroup A, Day 57. Subjects With 6 or More Outbreaks, 8 Weeks After Single Dose of SADBE.IL5 with HSV-1-infected cell extract stimulus10.627Standard Deviation 0.810q-RT-PCR crossing threshold cycle (Ct)
Ratio of Absolute Gene Expression of IFNG and IL5 in PBMCs Between 8 Weeks and BaselineGroup A: 6 or More Herpes Labialis Outbreaks, Day 1IL5 with HSV-1 virus stimulus9.747Standard Deviation 0.697q-RT-PCR crossing threshold cycle (Ct)
Ratio of Absolute Gene Expression of IFNG and IL5 in PBMCs Between 8 Weeks and BaselineGroup B: 1 or 2 Herpes Labialis Outbreaks in Prior 12 Months, Day 1IL5 with HSV-1 virus stimulus10.736Standard Deviation 0.880q-RT-PCR crossing threshold cycle (Ct)

Participant flow9

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTED6 or More Herpes Labialis Outbreaks12
Overall StudySTARTED1 to 2 Herpes Labialis Outbreaks12
Overall StudySTARTEDZero Herpes Labialis Outbreaks12
Overall StudyCOMPLETED6 or More Herpes Labialis Outbreaks10
Overall StudyCOMPLETED1 to 2 Herpes Labialis Outbreaks10
Overall StudyCOMPLETEDZero Herpes Labialis Outbreaks10
Overall StudyNOT COMPLETED6 or More Herpes Labialis Outbreaks2
Overall StudyNOT COMPLETED1 to 2 Herpes Labialis Outbreaks2
Overall StudyNOT COMPLETEDZero Herpes Labialis Outbreaks2

Adverse events2

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherLocal reactionSkin and subcutaneous tissue disorders6 or More Herpes Labialis Outbreaks2122
otherNauseaGastrointestinal disorders6 or More Herpes Labialis Outbreaks1121

Adverse event totals3

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortality6 or More Herpes Labialis Outbreaks012
Total, other adverse events6 or More Herpes Labialis Outbreaks312
Total, serious adverse events6 or More Herpes Labialis Outbreaks012

Papers1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed as
30756512RESULT

Source PubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

None in this release.

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT03661541

GET https://conductscience.org/api/trials/v1/NCT03661541/results?page=2