Study in Healthy Subjects to Determine the Effect of Relacorilant on Exposure to Probe Substrates for Cytochrome P450s

Completed · Phase 1

Conditions studied: Healthy

In brief

This is an open-label, single-sequence, 3-period crossover study conducted in healthy subjects. Eligible subjects will participate in a single treatment period, in which they will receive the following treatments: Day 1, single doses of midazolam and metoprolol; Day 2, single doses of pioglitazone, tolbutamide, and omeprazole; Days 5 to 17, daily doses of relacorilant; Day 14, single doses of midazolam and metoprolol (with relacorilant); and, Day 15, single doses of pioglitazone, tolbutamide, and omeprazole (with relacorilant).

Key facts

Study ID

NCT03457597

Run by

Corcept Therapeutics

People needed

27

Starts

2018-03-06

Expected to finish

2018-04-28

Last updated by the study team

2018-05-17

Who can join

Age: 18 and older, up to 65. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Able to understand the purpose and risks of the study; willing and able to adhere to scheduled visits, treatment plans, laboratory tests, and other study evaluations and procedures.
• Give written informed consent.
• Be males or nonpregnant, nonlactating females judged to be in good health, based on the results of medical history, physical examination, vital signs, 12-lead ECG, and clinical laboratory findings.
• Have a body mass index (BMI) between 18 and 32 kg/m2, inclusive, and a body weight more than 50 kg (110 pounds).
• Be a nonsmoker. Use of nicotine or nicotine-containing products must be discontinued at least 90 days prior to the first dose of study drug.
• Be willing to comply with study restrictions
• Have suitable veins for multiple venipuncture/cannulation.
• Female subjects must be either of nonchildbearing potential (ie, postmenopausal or permanently sterilized) or use highly effective contraception with low user-dependency.
• The only acceptable method of highly effective contraception with low user-dependency is an intrauterine device (IUD). Use of hormonal contraception (by any route, including intrauterine hormone releasing systems) or hormone replacement therapy is NOT acceptable.

You may not qualify if…

• Be an employee or immediate family member of the Clinical Research Unit or Corcept.
• Have been previously enrolled in any study of relacorilant.
• Have multiple drug allergies, or be allergic to any of the components of relacorilant.
• Have a condition that could be aggravated by glucocorticoid blockade (eg, asthma, any chronic inflammatory condition).
• Have a history of gastric bypass surgery.
• Have a history of malabsorption syndrome or previous gastrointestinal surgery, with the exception of appendectomy and cholecystectomy, which could affect drug absorption or metabolism.
• Current alcohol or substance abuse.
• In the 2 calendar months before first study drug administration, have donated/lost blood or plasma in excess of 400 mL.
• In the 30 days before first study drug administration, have participated in another clinical trial of a new chemical entity or a prescription medicine.
• Have a positive test for alcohol or drugs of abuse at screening or first admission.
• Have a positive test for exogenous glucocorticoids at screening.
• Have clinically relevant abnormal findings on vital signs, physical examination, laboratory screening tests, or 12-lead ECG, at screening and/or before first study drug administration, including but not limited to**:
• QT interval corrected for heart rate (QTc) using Fridericia's equation (QTcF) >450 ms (from mean of 3 supine ECGs, performed at least 2 minutes apart)
• Stage 2 or higher hypertension (supine/semi-recumbent systolic blood pressure [SBP] >160 mmHg, diastolic blood pressure [DBP] >100 mmHg; based on mean of duplicate values recorded at least 2 minutes apart)
• Stage 1 hypertension (supine/semi-recumbent SBP 140-160 mmHg, DBP 90-100 mmHg; based on mean of duplicate values recorded at least 2 minutes apart) associated with indication for treatment ie, evidence of end-organ damage, diabetes, or a 10-year cardiovascular risk, estimated using a standard calculator, (eg, QRISK2-2016) greater than 20%
• Glomerular filtration rate, estimated using the chronic kidney disease epidemiology (collaboration) (CKD-EPI) method (eGFR; Levey 2009) <60 mL/minute/1.73 m2
• Hypokalemia (potassium below lower limit of normal)
• Alanine aminotransferase (ALT), aspartate amino transferase (AST), and/or gamma- glutamyltransferase (GGT) >1.5 times the upper limit of normal (ULN)
• Seropositive for hepatitis B, hepatitis C, or human immunodeficiency (HIV) viruses **For purposes of qualifying any given subject for study participation, out-of-range values may be repeated once.
• Have any medical or social reasons for not participating in the study raised by their primary care physician.
• Have any other condition that might increase the risk to the individual or decrease the chance of obtaining satisfactory data, as assessed by the Investigator.
• Taken any prohibited prior medication within protocol designated timeframes, such as or including any glucocorticoid, strong inducers, inhibitors or substrates of CYP enzymes involved in drug-drug-interactions, hormonal contraception or hormone replacement therapy.

Where it is running

• Celerion — Tempe, Arizona, United States

Full record on ClinicalTrials.gov

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