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Study of the Long Term Safety of Serlopitant for the Treatment of Pruritus (Itch)

An Open-Label Long-Term Safety Study of Serlopitant for the Treatment of Pruritus

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03540160
Enrollment
558
Registered
2018-05-30
Start date
2018-03-15
Completion date
2020-06-17
Last updated
2021-05-20

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

Conditions

Atopic Dermatitis, Prurigo Nodularis, Pruritus, Psoriasis

Brief summary

Study of the long term safety of serlopitant for the treatment of pruritus in adults.

Interventions

Serlopitant Tablets

Sponsors

Vyne Therapeutics Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Male or female, age 18 years or older at consent. * Pruritus associated with prurigo nodularis, atopic dermatitis, or psoriasis. * Female subjects of childbearing potential must be willing to practice highly effective contraception until 5 weeks after last dose of study drug. * Willing and able to comply with study visits and study related requirements including providing written informed consent.

Exclusion criteria

* Malignancy within 5 years prior to enrollment (exception for non-melanoma cutaneous malignancies). * Any known major psychiatric diagnosis, such as major depressive disorder, bipolar disorder, schizophrenia, psychotic disorder, intellectual disability, severe alcohol use disorder, which may confound the assessment of serlopitant safety or efficacy, or interfere with the subject's ability to comply with protocol-mandated activities, within 3 years prior to enrollment. * Untreated or inadequately treated thyroid, adrenal, or pituitary nodules or disease, or history of thyroid malignancy; or the prescense of any medical condition or disability, that could interfere with the assessment of safety in this study or compromise the safety of the subject. * Investigational therapy within 4 weeks or 5-half-lives prior to enrollment (whichever is longer) or expected participation in another clinical study involving an investigational product or device during the subject's participation in this study. * Treatment with other neurokinin-1 receptor (NK1-R) antagonists (e.g., aprepitant, fosaprepitant, rolapitant) within 4 weeks. * Treatment with strong cytochrome P450 3A4 inhibitors within 4 weeks. * Currently pregnant or breastfeeding or planning to become pregnant during the study.

Design outcomes

Primary

MeasureTime frameDescription
Number of Subjects With Treatment-emergent Adverse EventsFrom baseline until the Follow-up (F/U) visit which occurred 35 days (+ 7 days) after the Week 52 visit or the last dose of study drug for subjects who discontinued study drug early.Treatments emergent adverse events (TEAEs) 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.

Countries

Austria, Germany, Poland, United States

Participant flow

Recruitment details

The study was conducted at 120 sites from 15 March 2018 to 08 April 2020. All participants who met the study entry criteria received daily oral doses of serlopitant 5 mg tablet.

Pre-assignment details

Subjects attended a screening visit before receiving their first dose. All subjects underwent inclusion exclusion criteria assessment and all eligible subjects signed the informed consent before undergoing any study-related procedures.

Participants by arm

ArmCount
Serlopitant 5 mg
Subjects received serlopitant 5 mg tablet once daily orally from Baseline Visit (Study Day 1) until the Week 52 Visit.
549
Total549

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event20
Overall StudyCOVID-192
Overall StudyLack of Efficacy60
Overall StudyLost to Follow-up18
Overall StudyPhysician Decision8
Overall StudyPregnancy1
Overall StudyProtocol Violation1
Overall StudySponsor decision191
Overall StudyStudy Closure10
Overall StudyWithdrawal by Subject68

Baseline characteristics

CharacteristicSerlopitant 5 mg
Age, Continuous56.1 years
STANDARD_DEVIATION 14.62
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
Race (NIH/OMB)
Asian
18 Participants
Race (NIH/OMB)
Black or African American
80 Participants
Race (NIH/OMB)
More than one race
7 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
442 Participants
Sex: Female, Male
Female
351 Participants
Sex: Female, Male
Male
198 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 549
other
Total, other adverse events
36 / 549
serious
Total, serious adverse events
45 / 549

Outcome results

Primary

Number of Subjects With Treatment-emergent Adverse Events

Treatments emergent adverse events (TEAEs) 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.

Time frame: From baseline until the Follow-up (F/U) visit which occurred 35 days (+ 7 days) after the Week 52 visit or the last dose of study drug for subjects who discontinued study drug early.

Population: Safety population: included all treated participants with at least one postbaseline assessment or a reported TEAE.~No statistical analyses were performed for this end point

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Serlopitant 5 mgNumber of Subjects With Treatment-emergent Adverse EventsSubjects with any TEAE325 Participants
Serlopitant 5 mgNumber of Subjects With Treatment-emergent Adverse EventsSubjects with any related TEAE55 Participants
Serlopitant 5 mgNumber of Subjects With Treatment-emergent Adverse EventsSubjects with any SAE45 Participants
Serlopitant 5 mgNumber of Subjects With Treatment-emergent Adverse EventsSubjects with any related SAE1 Participants
Serlopitant 5 mgNumber of Subjects With Treatment-emergent Adverse EventsSubjects who died0 Participants
Serlopitant 5 mgNumber of Subjects With Treatment-emergent Adverse EventsSubjects who discontinued study drug due to TEAE28 Participants

Source: ClinicalTrials.gov · Data processed: Feb 20, 2026