Study To Evaluate The Effect Of Multiple Doses of CTP-543 On The Pharmacokinetics Of Single Doses of Midazolam In Healthy Subjects

Concert Pharmaceuticals

Status and phase: Completed; Phase 1

Conditions: Health Volunteers

Treatments: Drug: Midazolam; Drug: CTP-543

Study type: Interventional

Funder types: Industry

Identifiers

NCT05467709

CP543.1012

Details and patient eligibility

About

This is a single center, Phase 1, open-label, fixed-sequence, drug-drug interaction study to determine the effect of CTP-543 on the pharmacokinetics (PK) of midazolam in healthy adult subjects

Enrollment: 20 patients

Sex: All

Ages: 18 to 60 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Healthy, adult, male or female, aged 18-60
• Non-smoker who has not used nicotine-containing products for at least 3 months prior to the first dosing
• Body mass index (BMI) ≥ 18.0 and ≤ 32.0 kg/m2 at screening
• If of reproductive age, willing and able to use a medically highly effective form of birth control 4 weeks prior to first dose, during the study and for 30 days following last dose of study medication
• Capable of giving informed consent and complying with study procedures

Exclusion criteria

• History or presence of clinically significant medical or psychiatric condition or disease
• History or presence of alcohol or drug abuse within the past 2 years prior to the first dosing
• Presence or history of significant gastrointestinal, liver or kidney disease, or any other condition that is known to interfere with drug absorption, distribution, metabolism or excretion, or known to potentiate or predispose to undesired effects
• History of prolonged QT syndrome or a QTc interval with Fridericia's correction (QTcF) > 450 msec for males or QTcF > 470 msec for females at screening visit or prior to the first dosing
• Abnormal liver function at screening
• Females who are nursing, pregnant, or planning to become pregnant while in the study, and for 30 days after last dose of study drug
• Positive results for coronavirus infection (COVID-19) at screening or check-in
• Positive drug or alcohol results at screening or check-in
• Positive results at screening for human immunodeficiency virus (HIV), hepatitis B surface antigen (HBsAg) or hepatitis C virus (HCV)
• Participation in another clinical study within 30 days prior to, and 30 days after the first dosing.

Trial design

Primary purpose: Other

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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20 participants in 1 patient group

CTP-543

Experimental group

Description:

Subjects will receive a single 2 mg dose of midazolam on Day 1. Starting on Day 3, 12 mg dose of CTP-543 will be administered (q12 hrs) for 14 consecutive days (up to Day 16). On Day 16, subjects will be co-administered a single 2 mg midazolam dose along with the morning dose of CTP-543. The second dose of CTP-543 will be administered as scheduled on Day 16.

Treatment:

Drug: Midazolam

Drug: CTP-543