A Two-part, Study to Compare the Pharmacokinetics and Dose Proportionality of up to 6 Chronocort Formulations

September 10, 2026 updated by: Neurocrine UK Limited

A Two-part Open Label, Randomised, Single Dose, Crossover Study in Healthy Volunteers to: (Part A) Compare the Pharmacokinetics of up to 6 Chronocort® Formulations, and (Part B) Determine the Dose Proportionality of a Selected Chronocort® Formulation at Three Dose Levels With an Additional Comparison With the Selected Formulation Dosed on Two Occasions Over a 24 Hour Period

This was an open label, randomised, single dose study, comprising Part A (undertaken in two separate three-period crossover cohorts denoted as A1 and A2) and Part B (undertaken in one four-period crossover cohort), to evaluate the PK of Chronocort® in healthy male volunteers. The washout interval in both Part A and Part B was 1-week in between each treatment period.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
28

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 60 years (Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Healthy male volunteers between 18 and 60 years of age, inclusive (at screening).
  • Subjects with a Body Mass Index (BMI) of 21-28. Body Mass Index = Body weight (kg) / (Height (m))2.
  • Subjects with no clinically significant abnormal serum biochemistry, haematology and urine examination values within 14 days prior to the first dose.
  • Subjects with negative urinary drugs of abuse screen determined within 14 days prior to the first dose.
  • Subjects with negative HIV and Hepatitis B and C results.
  • Subjects with no clinically significant abnormalities in 12-lead electrocardiogram (ECG) determined within 14 days prior to the first dose.
  • Subjects with no clinically-significant deviation outside the normal ranges for blood pressure and pulse measurements.

  • Subjects and sexual partners used effective contraception methods during the trial and for 3 months after the last dose, for example:

    • Oral contraceptive and condom
    • Intra-uterine device (IUD) and condom
    • Diaphragm with spermicide and condom
  • Subjects were available to complete the study.
  • Subjects satisfied a medical examiner about their fitness to participate in the study.
  • Subjects provided written informed consent to participate in the study.
  • Subject continued to meet all screening inclusion criteria prior to dosing.
  • Subjects with no clinically significant abnormal serum biochemistry, haematology and urine examination values including negative urinary drugs of abuse screen (including alcohol) prior to dosing.

Exclusion Criteria:

  • A clinically significant history of gastrointestinal disorder likely to influence drug absorption.
  • Receipt of regular medication within 14 days prior to the first dose (including high dose vitamins, dietary supplements or herbal remedies).
  • Receipt of any vaccination within 14 days prior to the first dose.
  • Evidence of renal, hepatic, central nervous system, respiratory, cardiovascular or metabolic dysfunction.
  • Presence of clinically significant infections (systemic fungal and viral infections, acute bacterial infections)
  • Current or previous history of tuberculosis
  • A clinically significant history of previous allergy / sensitivity to Hydrocortisone and/or Dexamethasone.
  • A clinically significant history or family history of psychiatric disorders/illnesses.
  • A clinically significant history of drug or alcohol abuse.
  • Inability to communicate well with the Investigator (i.e., language problem, poor mental development or impaired cerebral function).
  • Participation in a New Chemical Entity clinical study within the previous 16 weeks or a marketed drug clinical study within the previous 12 weeks. (N.B. The washout period between trials was defined as the period of time elapsed between the last dose of the previous study and the first dose of the next study)
  • Subjects who have consumed more than 2 units of alcohol per day within seven (7) days prior to the first dose or have consumed any alcohol within the 48 hour period prior to the first dose.
  • Donation of 450ml or more of blood within the previous 12 weeks.
  • Subjects who smoked (or ex-smokers who had smoked within 6 months prior to first dose).
  • Subjects who worked shifts (i.e. regularly alternated between days, afternoons and nights).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Part A1
Three formulations of Chronocort 30mg were administered to healthy volunteers, with a 7-day washout period between each dose. Each treatment was administered in a randomised, crossover manner.
Drug: Chronocort
Modified formulation of hydrocortisone
Experimental: Part A2
Three additional formulations of Chronocort 30mg were administered to healthy volunteers, with a 7-day washout period between each dose. Each treatment was administered in a randomised, crossover manner.
Drug: Chronocort
Modified formulation of hydrocortisone
Experimental: Part B
The best formulation of Chronocort was then selected from Parts A1 & A2. This was then administered in four separate treatment periods, in dosages of 5mg, 10mg, 20mg and 30mg. Each treatment was administered in a randomised, crossover manner.
Drug: Chronocort
Modified formulation of hydrocortisone

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
To compare the Tmax of six formulations of Chronocort® (30 mg, dosed at night) over an 18 hour period. Parts A1 & A2 only
Time Frame: 18 hours
Time at maximum concentration in serum
18 hours
To compare the Cmax of six formulations of Chronocort® (30 mg, dosed at night) over an 18 hour period. Parts A1 & A2 only
Time Frame: 18 hours
Maximum serum concentration
18 hours
To compare the AUC0-t of six formulations of Chronocort® (30 mg, dosed at night) over an 18 hour period.
Time Frame: 18 hours
Area under the plasma concentration-time curve
18 hours
To compare the AUC0-∞ of six formulations of Chronocort® (30 mg, dosed at night) over an 18 hour period.
Time Frame: 18 hours
Area under the plasma concentration-time curve from zero (0) hours to infinity (∞)
18 hours
To compare the CL of six formulations of Chronocort® (30 mg, dosed at night) over an 18 hour period.
Time Frame: 18 hours
Drug clearance (CL) is defined as the volume of plasma in the vascular compartment cleared of drug per unit time
18 hours

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Neurocrine UK Limited

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Simbec Research

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Girish Sharma, Simbec Research

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 1, 2011

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
April 1, 2012

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
April 1, 2012

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 11, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 9, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 14, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 14, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 10, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • DIUR-002

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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