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Trial · NCT03546816

Study of the Efficacy, Safety and Tolerability of Serlopitant for the Treatment of Pruritus (Itch) With Prurigo Nodularis

NCT03546816, Phase 3, Completed, Vyne Therapeutics Inc.; results first posted 2020-09-07

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Study of the Efficacy, Safety and Tolerability of Serlopitant for the Treatment of Pruritus (Itch) With Prurigo Nodularis. Trials, record NCT03546816. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03546816

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Trial

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

Title
Study of the Efficacy, Safety and Tolerability of Serlopitant for the Treatment of Pruritus (Itch) With Prurigo Nodularis
NCT number
NCT03546816
Status
Completed
Phases
Phase 3
Enrollment
285 participants, actual
Lead sponsor
Vyne Therapeutics Inc.
Conditions
Pruritus, Prurigo Nodularis
Interventions
5mg Serlopitant Tablets, Placebo Tablets
First posted
2018-06-06
Last updated
2021-05-20
Results first posted
2020-09-07

Source ClinicalTrials.gov

Registered outcomes10

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

ListOutcomeTime frameDescription
PrimaryPercent of Subjects With Worst-Itch Numeric Rating Scale 4-point Responder at Week 10At Week 10
During the study, Worst Itch Numeric Rating Scale (WI-NRS) assessments were reported by the subject via eDiary once daily from screening/mid-screening visit through the follow-up visit. The Itch NRS is a validated, self-reported, instrument for measurement of itch intensity and subjects were asked to rate the intensity of their itch on an 11-point scale ranging from 0 (no itch) to 10 (worst itch imaginable); higher scores indicated greater itch intensity. Subjects were considered responders if they had at least a 4-point reduction from baseline in weekly average WI-NRS at Week 10.
SecondaryPercent of Subjects With WI-NRS 4-point Responder at Week 4At Week 4
During the study, WI-NRS assessments were reported by the subject via eDiary once daily from screening/mid-screening visit through the follow-up visit. The Itch NRS is a validated, self-reported, instrument for measurement of itch intensity and subjects were asked to rate the intensity of their itch on an 11-point scale ranging from 0 (no itch) to 10 (worst itch imaginable); higher scores indicated greater itch intensity.
SecondaryPercent of Subjects With WI-NRS 4-point Responder at Week 2At Week 2
During the study, WI-NRS assessments were reported by the subject via eDiary once daily from screening/mid-screening visit through the follow-up visit. The Itch NRS is a validated, self-reported, instrument for measurement of itch intensity and subjects were asked to rate the intensity of their itch on an 11-point scale ranging from 0 (no itch) to 10 (worst itch imaginable); higher scores indicated greater itch intensity.
SecondaryChange From Baseline in WI-NRS at Weeks 2, 4, 6, and 10At Weeks 2, 4, 6, and 10
During the study, WI-NRS assessments were reported by the subject via eDiary once daily from screening/mid-screening visit through the follow-up visit. The Itch NRS is a validated, self-reported, instrument for measurement of itch intensity and subjects were asked to rate the intensity of their itch on an 11-point scale ranging from 0 (no itch) to 10 (worst itch imaginable); higher scores indicated greater itch intensity.
SecondaryPercent of Subjects With WI-NRS 3-point Responder at Weeks 2, 4, and 10At Weeks 2, 4, and 10
During the study, WI-NRS assessments were reported by the subject via eDiary once daily from screening/mid-screening visit through the follow-up visit. The Itch NRS is a validated, self-reported, instrument for measurement of itch intensity and subjects were asked to rate the intensity of their itch on an 11-point scale ranging from 0 (no itch) to 10 (worst itch imaginable); higher scores indicated greater itch intensity. For the 3-point responder rate, subjects were considered responders if they had at least a 3-point reduction between baseline and the corresponding week.
SecondaryChange From Baseline in Investigator's Global Assessment of Prurigo Nodularis Activity (IGA PN-A) to Weeks 2, 4, and 10At Weeks 2, 4, and 10
The IGA PN-A is an instrument used to assess the overall activity of PN lesions at a given time point, as determined by the investigator. It consists of a 5-point scale ranging from 0 (clear) to 4 (severe). Higher scores indicate severe prurigo nodularis.
SecondaryChange From Baseline in Investigator's Global Assessment of PN Stage (IGA PN-S) to Weeks 2, 4, and 10At Weeks 2, 4, and 10
The IGA PN-S is an instrument used to assess the overall number and thickness of PN lesions at a given time point, as determined by the investigator. It consists of a 5-point scale ranging from 0 (clear) to 4 (severe). Higher scores indicate severe prurigo nodularis.
SecondaryChange From Baseline in Dermatology Life Quality Index (DLQI) to Week 10At Week 10
Dermatology Life Quality Index (DLQI) is a dermatology specific quality of life (QoL) instrument designed to assess the impact of the skin disease on a subject's QoL over the prior week. It is a ten item questionnaire that assesses overall QoL and six aspects that may affect QoL (symptoms and feelings, daily activities, leisure, work or school performance, personal relationships, and treatment). The DLQI questions are rated by the subject as 0 (not at all) to 3 (very much). Scores range from 0 to 30 with higher scores indicating poor QoL.
SecondaryChange From Baseline in DLQI Question 1 to Week 10At Week 10
DLQI is a dermatology specific QoL instrument designed to assess the impact of the skin disease on a subject's QoL over the prior week. It is a ten item questionnaire that assesses overall QoL and six aspects that may affect QoL (symptoms and feelings, daily activities, leisure, work or school performance, personal relationships, and treatment) The DLQI question 1 is to measure how itchy, sore, painful or stinging the subject's skin had been. It is rated by the subject as 0 (not at all) to 3 (very much). Scores range from 0 to 30 with higher scores indicating poor QoL.
SecondaryNumber of Subjects With Treatment-emergent Adverse Events and Serious Adverse Events (SAEs)35 days (+3 days) after Week 10 or Early Treatment Discontinuation
Adverse events (AEs) and serious adverse events (SAEs) were recorded from the first study drug administration through the follow-up visit. Severity of all AEs were graded using the National Cancer Institute Common Terminology Criteria for Adverse Events v4.03. During the period between informed consent and first study drug dose, only SAEs caused by a protocol-mandated intervention were collected.

Outcomes10

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYPercent of Subjects With Worst-Itch Numeric Rating Scale 4-point Responder at Week 10At Week 10Intent-to-Treat Population: included all randomized subjects who were dispensed study drug.Percentage of subjectsNUMBER
SECONDARYPercent of Subjects With WI-NRS 4-point Responder at Week 4At Week 4Intent-to-Treat Population: included all randomized subjects who were dispensed study drug.Percentage of subjectsNUMBER
SECONDARYPercent of Subjects With WI-NRS 4-point Responder at Week 2At Week 2Intent-to-Treat Population: included all randomized subjects who were dispensed study drug.Percentage of subjectsNUMBER
SECONDARYChange From Baseline in WI-NRS at Weeks 2, 4, 6, and 10At Weeks 2, 4, 6, and 10Intent-to-Treat Population: included all randomized subjects who were dispensed study drug.Score on a scaleMEAN
SECONDARYPercent of Subjects With WI-NRS 3-point Responder at Weeks 2, 4, and 10At Weeks 2, 4, and 10Intent-to-Treat Population: included all randomized subjects who were dispensed study drug.Percentage of subjectsNUMBER
SECONDARYChange From Baseline in Investigator's Global Assessment of Prurigo Nodularis Activity (IGA PN-A) to Weeks 2, 4, and 10At Weeks 2, 4, and 10Intent-to-Treat Population: included all randomized subjects who were dispensed study drug.Score on a scaleMEAN
SECONDARYChange From Baseline in Investigator's Global Assessment of PN Stage (IGA PN-S) to Weeks 2, 4, and 10At Weeks 2, 4, and 10Intent-to-Treat Population: included all randomized subjects who were dispensed study drug.Score on a scaleMEAN
SECONDARYChange From Baseline in Dermatology Life Quality Index (DLQI) to Week 10At Week 10Intent-to-Treat Population: included all randomized subjects who were dispensed study drug.Score on a scaleMEAN
SECONDARYChange From Baseline in DLQI Question 1 to Week 10At Week 10Intent-to-Treat Population: included all randomized subjects who were dispensed study drug.Score on a scaleMEAN
SECONDARYNumber of Subjects With Treatment-emergent Adverse Events and Serious Adverse Events (SAEs)35 days (+3 days) after Week 10 or Early Treatment DiscontinuationSafety population: included all treated subjects with at least one post-baseline assessment or a reported TEAE.ParticipantsCOUNT_OF_PARTICIPANTS

Results by group48

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

OutcomeGroupCategoryValueSpreadUnits
Percent of Subjects With Worst-Itch Numeric Rating Scale 4-point Responder at Week 10Serlopitant 5 mg26.45Percentage of subjects
Percent of Subjects With Worst-Itch Numeric Rating Scale 4-point Responder at Week 10Placebo20.31Percentage of subjects
Percent of Subjects With WI-NRS 4-point Responder at Week 4Serlopitant 5 mg17.66Percentage of subjects
Percent of Subjects With WI-NRS 4-point Responder at Week 4Placebo7.80Percentage of subjects
Percent of Subjects With WI-NRS 4-point Responder at Week 2Serlopitant 5 mg8.45Percentage of subjects
Percent of Subjects With WI-NRS 4-point Responder at Week 2Placebo4.93Percentage of subjects
Change From Baseline in WI-NRS at Weeks 2, 4, 6, and 10Serlopitant 5 mgChange from Baseline at Week 2-1.30Standard Deviation 1.725Score on a scale
Change From Baseline in WI-NRS at Weeks 2, 4, 6, and 10PlaceboChange from Baseline at Week 2-0.96Standard Deviation 1.740Score on a scale
Change From Baseline in WI-NRS at Weeks 2, 4, 6, and 10Serlopitant 5 mgChange from Baseline at Week 4-1.82Standard Deviation 2.226Score on a scale
Change From Baseline in WI-NRS at Weeks 2, 4, 6, and 10PlaceboChange from Baseline at Week 4-1.32Standard Deviation 2.248Score on a scale

Participant flow6

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDSerlopitant 5 mg142
Overall StudySTARTEDPlacebo143
Overall StudyCOMPLETEDSerlopitant 5 mg121
Overall StudyCOMPLETEDPlacebo124
Overall StudyNOT COMPLETEDSerlopitant 5 mg21
Overall StudyNOT COMPLETEDPlacebo19

Adverse events24

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherUpper respiratory tract infectionInfections and infestationsSerlopitant 5 mg10141
otherUpper respiratory tract infectionInfections and infestationsPlacebo3139
otherPruritusSkin and subcutaneous tissue disordersSerlopitant 5 mg9141
otherPruritusSkin and subcutaneous tissue disordersPlacebo2139
seriousAbortion spontaneousPregnancy, puerperium and perinatal conditionsSerlopitant 5 mg1139
seriousAbortion spontaneousPregnancy, puerperium and perinatal conditionsPlacebo0141
seriousPulmonary embolismRespiratory, thoracic and mediastinal disordersSerlopitant 5 mg1139
seriousPulmonary embolismRespiratory, thoracic and mediastinal disordersPlacebo0141
seriousSchizoaffective disorderPsychiatric disordersSerlopitant 5 mg1139
seriousSchizoaffective disorderPsychiatric disordersPlacebo0141

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalitySerlopitant 5 mg0139
Total, all-cause mortalityPlacebo0141
Total, other adverse eventsSerlopitant 5 mg18141
Total, other adverse eventsPlacebo5139
Total, serious adverse eventsSerlopitant 5 mg6139
Total, serious adverse eventsPlacebo3141

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

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 comparisons2

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

ComparisonSource
Serlopitant 5 mg vs Placebo: deaths from any causeTrial comparisons
Serlopitant 5 mg vs Placebo: serious adverse eventsTrial comparisons

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/NCT03546816

GET https://conductscience.org/api/trials/v1/NCT03546816/results?page=2