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Completed

NCT Number: NCT05003713

Single and Multiple Ascending Dose Study of CORT125236 in Healthy Participants

This is a 3-part, first-in-human study of single ascending doses (SAD; Part 1) and multiple ascending doses (MAD; Part 2) of CORT125236 in healthy participants; Part 3 is optional, to investigate whether CORT125236 ameliorates the effects of prednisone on various pharmacodynamic (PD) endpoints. The 3 parts may not be conducted entirely sequentially provided that this is justified by the pharmacokinetic (PK) and safety data obtained from completed cohorts. The first MAD cohort will not start until data are available from at least 3 SAD levels to allow MAD administration to proceed. The decision on whether to start Part 3 can be made at any point after completion of 3 SAD levels, and will be based on achieving sufficiently high plasma CORT125236 exposure in Part 1 of the study.

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Key information

Conditions

Age range

18 year–60 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1

Primary location

Site 01

Ruddington, Nottingham, NG11 6JS, United Kingdom

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Body mass index 18.0 to 30.0 kg/m^2, inclusive
  • Body weight ≤102 kg
  • Willing to consume a high-fat breakfast, including pork
  • Adheres to the contraception requirements of the protocol
  • Additional criteria apply.

Exclusion criteria

  • Received any investigational drug or device in a clinical research study within 90 days
  • Evidence of current severe acute respiratory syndrome (SARS-CoV-2) infection
  • History of any drug or alcohol abuse in the past 2 years; a confirmed positive drugs of abuse test result
  • Regular alcohol consumption; a confirmed positive alcohol breath test at screening
  • Current smoker; a confirmed positive breath carbon monoxide reading; current user of e-cigarettes and nicotine replacement products in the last 6 months
  • Female of childbearing potential, pregnant, or breastfeeding
  • Male participant with pregnant or lactating partners
  • Clinically significant abnormal clinical chemistry, hematology or urinalysis result
  • Positive for hepatitis B surface antigen (HBsAg), hepatitis C virus antibody (HCV Ab) or human immunodeficiency virus (HIV)
  • Active renal and/or hepatic disease
  • History of clinically significant cardiovascular, renal, hepatic, endocrine, metabolic, respiratory, gastrointestinal (GI), neurological or psychiatric disorder
  • Any form of cancer in the 5 years (exceptions apply)
  • History of adrenal insufficiency
  • Have a condition that could be aggravated by glucocorticoid antagonism
  • Donation or loss of greater than 400 mL of blood or plasma within the previous 3 months
  • Currently using glucocorticoids or have a history of systemic glucocorticoid use in the last 12 months or 3 months for inhaled products
  • Additional criteria apply.

Treatment and study plan

CORT125236

Drug

CORT125236 Lipid Capsule Formulation 10-60 mg for oral administration

Placebo matching CORT125236

Drug

Placebo matching CORT125236 Lipid Capsule Formulation 10-60 mg for oral administration

Prednisone

Drug

Prednisone tablet 25 mg (20 mg + 5 mg tablets) for oral administration

Primary outcomes

  1. Number of Participants with One or More Adverse Events

    Time frame: Part 1 SAD Cohorts: up to Day 12; Part 2 MAD Cohorts: up to Day 25; Part 3 Cohort: up to Day 19

Secondary outcomes

  1. Maximum Plasma Concentration (Cmax) of CORT125236

    Time frame: Before dosing and at pre-specified time points up to Day 5 (Part 1 SAD Cohorts), or up to Day 18 (Part 2 MAD Cohorts)

  2. Time of Cmax (Tmax) of Plasma CORT125236

    Time frame: Before dosing and at pre-specified time points up to Day 5 (Part 1 SAD Cohorts), or up to Day 18 (Part 2 MAD Cohorts)

  3. Apparent Elimination Half-life (t1/2) of Plasma CORT125236

    Time frame: Before dosing and at pre-specified time points up to Day 5 (Part 1 SAD Cohorts), or up to Day 18 (Part 2 MAD Cohorts)

  4. Area Under the Plasma Concentration-time Curve (AUC) of CORT125236

    Time frame: Before dosing and at pre-specified time points up to Day 5 (Part 1 SAD Cohorts), or up to Day 18 (Part 2 MAD Cohorts)

  5. Serum Cortisol Concentration

    Time frame: Before dosing on Days 1 and 14 (Part 2 MAD Cohorts)

  6. Plasma Adrenocorticotropic Hormone (ACTH) Concentration

    Time frame: Before dosing on Days 1 and 14 (Part 2 MAD Cohorts)

  7. Eosinophil Count

    Time frame: Before dosing and at pre-specified time points up to 24 hours after dosing (Part 3, Periods 1 and 2 PD Cohort)

  8. Lymphocyte Count

    Time frame: Before dosing and at pre-specified time points up to 24 hours after dosing (Part 3, Period 1 and 2 PD Cohort)

  9. Neutrophil Count

    Time frame: Before dosing and at pre-specified time points up to 24 hours after dosing (Part 3, Period 1 and 2 PD Cohort)

  10. Serum Osteocalcin Concentration

    Time frame: Before dosing and at pre-specified time points up to 24 hours after dosing (Part 3, Period 1 and 2 PD Cohort)

  11. Plasma Glucose

    Time frame: 4 hours after dosing and immediately prior to a high-carbohydrate lunch, and approximately 2 hours after starting the lunch (Part 3, Period 1 and 2 PD Cohort)

  12. Serum Insulin

    Time frame: 4 hours after dosing and immediately prior to a high-carbohydrate lunch, and approximately 2 hours after starting the lunch (Part 3, Period 1 and 2 PD Cohort)

  13. Plasma Tumor Necrosis Factor Alpha (TNF-α) Concentration following ex vivo Lipopolysaccharide (LPS) Stimulation

    Time frame: Before dosing and 1, 2, and 4 hours after dosing (Part 3, Periods 1 and 2 PD Cohort)

  14. Plasma Interleukin-1 Beta (IL-1β) Concentration following ex vivo LPS Stimulation

    Time frame: Before dosing and 1, 2, and 4 hours after dosing (Part 3, Periods 1 and 2 PD Cohort)

Sponsors and collaborators

Lead sponsor

Corcept Therapeutics

Industry

Registry information

Official study title

A Phase I Adaptive Dose, Double-Blind, Placebo-Controlled, Single and Multiple Ascending Dose Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of Orally Administered CORT125236 in Healthy Subjects, With an Optional Pharmacological Effects Cohort

Important dates

Study start
2021
Primary completion
2023
Study completion
2023
First posted
Aug 12, 2021
Registry last updated
Mar 22, 2023

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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