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A Study to Assess the Safety and Pharmacokinetics of INCB123667 When Administered Orally to Adult Participants With Moderate or Severe Hepatic Impairment

A Phase 1, Open-Label Study to Assess the Safety and Pharmacokinetics of INCB123667 When Administered Orally to Adult Participants With Moderate or Severe Hepatic Impairment

Status
Not yet recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07559474
Enrollment
16
Registered
2026-04-30
Start date
2026-05-15
Completion date
2027-04-13
Last updated
2026-04-30

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

Conditions

Hepatic Insufficiency, Liver Diseases

Keywords

hepatic impairment, liver impairment (moderate and severe)

Brief summary

This study will be conducted to assess the safety and pharmacokinetics of INCB123667 when administered orally to adult participants with moderate or severe hepatic impairment.

Interventions

single dose administered orally

Sponsors

Incyte Corporation
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Ability to comprehend and willingness to sign a written ICF for the study. * Aged 18 to 80 years, inclusive, at the time of signing the ICF. * Moderate or severe hepatic impairment based on CP score. * Medical findings consistent with the degree of hepatic dysfunction, determined by medical history, physical examination, vital sign measurements, 12-lead ECGs, and clinical laboratory determinations at screening or check-in (as applicable). Participants with abnormal findings considered not clinically significant by the medical monitor or investigator are eligible. * Body mass index of 18.0 to 43.0 kg/m2 (inclusive). * Willingness to avoid pregnancy or fathering children.

Exclusion criteria

* Participants who have a current, functioning organ transplant or are on the national transplant list and expected to receive a transplant within 3 months. * Tobacco or nicotine-containing product use of \> 10 cigarettes per day within 1 month before screening. * Participants who had a change in disease status within 30 days before screening, as documented by the participant's medical history, that is deemed clinically significant by the investigator. * Participants who have a history of paracentesis within 2 months prior to check-in. * Participants who required new medication or an increase in dose for hepatic encephalopathy within 3 months prior to check-in. * Participants who have a history of unstable diabetes mellitus (as evidenced by hemoglobin A1c ≥ 10.0%). Medications for treatment of diabetes mellitus must be reviewed and approved by the investigator and medical monitor. Participants who have a portal systemic shunt. Up to 3 participants with transjugular intrahepatic portosystemic shunt may be included. * Participants who had esophageal banding within 3 months prior to check-in or required any other treatment for gastrointestinal bleeding within 6 months prior to check-in. Other protocol-defined Inclusion/

Design outcomes

Primary

MeasureTime frameDescription
PK for plasma INCB123667: CmaxUp to approximately 2 monthsDefined as the maximum plasma concentration.
PK for plasma INCB123667: AUCtUp to approximately 2 monthsDefined as area under the concentration-time curve from time zero to time of last quantifiable concentration.
PK for plasma INCB123667: AUC∞Up to approximately 2 monthsDefined as area under the single-dose concentration-time curve extrapolated to time of infinity.

Secondary

MeasureTime frameDescription
Number of Treatment-Emergent Adverse Events (TEAEs)Up to approximately 2.5 monthsAdverse events reported for the first time or worsening of a pre-existing event, occurring after study drug/treatment.

Contacts

CONTACTIncyte Corporation Call Center (US)
medinfo@incyte.com1.855.463.3463
CONTACTIncyte Corporation Call Center (ex-US)
eumedinfo@incyte.com+800 00027423
STUDY_DIRECTORIncyte Medical Monitor

Incyte Corporation

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 1, 2026