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Trial · NCT03677401

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

NCT03677401, Phase 3, Completed, Vyne Therapeutics Inc.; results first posted 2020-10-28

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 NCT03677401. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03677401

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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
NCT03677401
Status
Completed
Phases
Phase 3
Enrollment
295 participants, actual
Lead sponsor
Vyne Therapeutics Inc.
Conditions
Pruritus, Prurigo Nodularis
Interventions
5mg Serlopitant Tablets, Placebo Tablets
First posted
2018-09-19
Last updated
2021-05-20
Other registries' IDs
eudract:2017-004210-25
Results first posted
2020-10-28

Source ClinicalTrials.gov

Registered outcomes10

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

ListOutcomeTime frameDescription
PrimaryPercent of Participants With Worst Itch Numeric Rating Scale (WI-NRS) 4-point Responder Rate at Week 10At Week 10
During the study, WI-NRS assessments were reported by the participant 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 participants 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. A participant was a 4-point responder if their change from baseline is ≤ -4 (i.e. a decrease of at least 4).
SecondaryPercent of Participants With WI-NRS 4-point Responder Rate at Week 4At Week 4
During the study, WI-NRS assessments were reported by the participant 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 participants 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. A participant was a 4-point responder if their change from baseline is ≤ -4 (i.e. a decrease of at least 4).
SecondaryPercent of Participants With WI-NRS 4-point Responder Rate at Week 2At Week 2
During the study, WI-NRS assessments were reported by the participant 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 participants 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. A participant was a 4-point responder if their change from baseline is ≤ -4 (i.e. a decrease of at least 4).
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 participant 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 participants 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 Participants 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 participant 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 participants 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. A participant was a 3-point responder if their change from baseline is ≤ -3 (i.e. a decrease of at least 3).
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 participant'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 participant 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
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 participant'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 participant 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 Investigator's Global Assessment of Prurigo Nodularis 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 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.
SecondaryNumber of Participants With Treatment-emergent Adverse Events and Serious Adverse Events (SAEs)From screening until the Follow-up (F/U) visit which occurred 35 days (+ 7 days) after the Week 10 visit or the last dose of study drug for participants who discontinued study drug early
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 Participants With Worst Itch Numeric Rating Scale (WI-NRS) 4-point Responder Rate at Week 10At Week 10Intent-to-Treat Population: included all randomized participants who were dispensed study drug.Percentage of participantsNUMBER
SECONDARYPercent of Participants With WI-NRS 4-point Responder Rate at Week 4At Week 4Intent-to-Treat Population: included all randomized participants who were dispensed study drug.percentage of participantsNUMBER
SECONDARYPercent of Participants With WI-NRS 4-point Responder Rate at Week 2At Week 2Intent-to-Treat Population: included all randomized participants who were dispensed study drug.percentage of participantsNUMBER
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 participants who were dispensed study drug.Score on a scaleMEAN
SECONDARYPercent of Participants With WI-NRS 3-point Responder at Weeks 2, 4, and 10At Weeks 2, 4, and 10Intent-to-Treat Population: included all randomized participants who were dispensed study drug.Percentage of participantsNUMBER
SECONDARYChange From Baseline in Dermatology Life Quality Index (DLQI) to Week 10At Week 10Intent-to-Treat Population: included all randomized participants 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 participants who were dispensed study drug.Score on a scaleMEAN
SECONDARYChange From Baseline in Investigator's Global Assessment of Prurigo Nodularis Stage (IGA PN-S) to Weeks 2, 4, and 10At Weeks 2, 4 and 10Intent-to-Treat Population: included all randomized participants who were dispensed study drug.Score on a scaleMEAN
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 participants who were dispensed study drug.Score on a scaleMEAN
SECONDARYNumber of Participants With Treatment-emergent Adverse Events and Serious Adverse Events (SAEs)From screening until the Follow-up (F/U) visit which occurred 35 days (+ 7 days) after the Week 10 visit or the last dose of study drug for participants who discontinued study drug earlySafety population: included all treated participants with at least one post-baseline assessment or a reported TEAE.ParticipantsCOUNT_OF_PARTICIPANTS

Results by group54

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

OutcomeGroupCategoryValueSpreadUnits
Percent of Participants With Worst Itch Numeric Rating Scale (WI-NRS) 4-point Responder Rate at Week 10PlaceboSuccess18.95Percentage of participants
Percent of Participants With Worst Itch Numeric Rating Scale (WI-NRS) 4-point Responder Rate at Week 10Serlopitant 5 mgSuccess25.90Percentage of participants
Percent of Participants With Worst Itch Numeric Rating Scale (WI-NRS) 4-point Responder Rate at Week 10PlaceboFailure81.05Percentage of participants
Percent of Participants With Worst Itch Numeric Rating Scale (WI-NRS) 4-point Responder Rate at Week 10Serlopitant 5 mgFailure74.10Percentage of participants
Percent of Participants With WI-NRS 4-point Responder Rate at Week 4PlaceboSuccess11.49percentage of participants
Percent of Participants With WI-NRS 4-point Responder Rate at Week 4Serlopitant 5 mgSuccess12.63percentage of participants
Percent of Participants With WI-NRS 4-point Responder Rate at Week 4PlaceboFailure88.51percentage of participants
Percent of Participants With WI-NRS 4-point Responder Rate at Week 4Serlopitant 5 mgFailure87.37percentage of participants
Percent of Participants With WI-NRS 4-point Responder Rate at Week 2PlaceboSuccess6.76percentage of participants
Percent of Participants With WI-NRS 4-point Responder Rate at Week 2Serlopitant 5 mgSuccess5.55percentage of participants

Participant flow6

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDPlacebo148
Overall StudySTARTEDSerlopitant 5 mg147
Overall StudyCOMPLETEDPlacebo138
Overall StudyCOMPLETEDSerlopitant 5 mg129
Overall StudyNOT COMPLETEDPlacebo10
Overall StudyNOT COMPLETEDSerlopitant 5 mg18

Adverse events24

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherFatigueGeneral disordersPlacebo6148
otherFatigueGeneral disordersSerlopitant 5 mg7147
otherNasopharyngitisInfections and infestationsPlacebo22148
otherNasopharyngitisInfections and infestationsSerlopitant 5 mg15147
otherHeadacheNervous system disordersPlacebo5148
otherHeadacheNervous system disordersSerlopitant 5 mg9147
seriousCoronary artery diseaseCardiac disordersPlacebo0148
seriousCoronary artery diseaseCardiac disordersSerlopitant 5 mg1147
seriousWoundInjury, poisoning and procedural complicationsPlacebo0148
seriousWoundInjury, poisoning and procedural complicationsSerlopitant 5 mg1147

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityPlacebo0148
Total, all-cause mortalitySerlopitant 5 mg1147
Total, other adverse eventsPlacebo33148
Total, other adverse eventsSerlopitant 5 mg31147
Total, serious adverse eventsPlacebo2148
Total, serious adverse eventsSerlopitant 5 mg5147

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/NCT03677401

GET https://conductscience.org/api/trials/v1/NCT03677401/results?page=2