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Once-daily Oral Modified Release Hydrocortisone in Patients With Adrenal Insufficiency

A, Randomised, Controlled, Two-armed, Two-period Cross-over, Multi-centre Phase II/III Study to Assess the Safety and Pharmacokinetics of Once-daily Oral Modified-release Hydrocortisone in Patients With Adrenal Insufficiency

Status
Completed
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00915343
Enrollment
64
Registered
2009-06-08
Start date
2007-08-21
Completion date
2009-01-28
Last updated
2020-11-24

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

Conditions

Adrenal Insufficiency

Keywords

Adrenal insufficiency, Primary adrenal insufficiency, Addison's disease, Hydrocortisone, Modified release

Brief summary

This is a randomised, controlled, open, two-armed, two-period cross-over, multi-centre phase II/III study to assess the safety, tolerability and pharmacokinetics of once-daily oral modified-release hydrocortisone in comparison to conventional thrice-daily oral hydrocortisone tablets in patients with adrenal insufficiency

Detailed description

Adrenal insufficiency is a disease with more than 80% 1-year mortality before the availability of synthetic glucocorticoids. Current replacement therapy has improved this dramatically, but recent data suggest that outcome is still compromised. Patient receiving replacement therapy with hydrocortisone or cortisone acetate have compromised quality of life, reduced bone mass, increased risk factors for cardiovascular disease and premature mortality that is more than twice the mortality rate in the background population. Circulating cortisol levels follow a distinct diurnal pattern with high levels in the early morning and low trough values around midnight. Using available formulations for replacement therapy this circadian rhythm is had to mimic and also during the active time of the day high peaks and low troughs occur. In this trial a newly developed novel dual-, controlled release formulation of hydrocortisone that has in healthy volunteers been able to mimic the circadian pattern of circulating cortisol was studied in patients with primary adrenal insufficiency (Addison's disease).

Interventions

DRUGhydrocortisone (modified release), oral tablet 20 and 5 mg

The modified release hydrocortisone tablet was administered orally o.d. at 8 AM in the fasting state. The dose was the same as patients have had before entering the trial

DRUGHydrocortisone, oral tablet, 10 mg

The reference drug was administered orally thrice daily (at 8 AM, 12 AM and 4 PM). The morning dose was administered in the fasting state. The total daily dose was the same as in the experimental treatment arm.

Sponsors

Shire
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Previously diagnosed (e.g. more than 6 months ago) primary adrenal insufficiency with a stable daily glucocorticoid substitution dose for at least 3 months prior to study entry * Signed informed consent to participate in the study.

Exclusion criteria

* Clinical or laboratory signs of significant cerebral, cardiovascular, respiratory, Hepatobiliary, pancreatic disease * Clinically significant renal dysfunction * Clinical or laboratory signs of significant gastrointestinal emptying or motility disease * Any medication with agents which could interfere with hydrocortisone kinetics * Pregnant or lactating women * Regular dehydroepiandrosterone (DHEA) medication for the past 4 weeks * Oral oestrogen medication for the past 4 weeks * Deranged mineralocorticoid status

Design outcomes

Primary

MeasureTime frameDescription
Area Under the Concentration Time Curve From Zero to 24 Hours (AUC0-24h) of Total S-cortisol in Plasma After Multiple Doses During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysAUC can be used as a measure of drug exposure. It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The data for combined arm 1+2 after multiple doses were reported.

Secondary

MeasureTime frameDescription
Maximal Concentration (Cmax2) of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysCmax is a term that refers to the maximum (or peak) concentration that a drug achieves in the body after the drug has been administrated. Cmax2 is the Cmax after second dose of study drug. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Average Concentration of S-cortisol During the Dosing Interval at Steady State (Css,av) in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysCss,av was calculated as the area under the S-cortisol concentration versus time curve during a dosing interval at steady state (AUCtau) divided by dosing interval (tau). Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
First Detectable Concentration (Cfirst) of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysParticipants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Concentration at 6 Hours (C6h) of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysParticipants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Concentration at 7 Hours (C7h) of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysParticipants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Time to Peak Plasma Concentration (Tmax1) of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysTmax is the time after administration of a drug when the maximum plasma concentration in the body is reached. Tmax1 is the Tmax after first dose of study drug. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Time to Peak Plasma Concentration (Tmax2) of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysTmax is the time after administration of a drug when the maximum plasma concentration in the body is reached. Tmax2 is the Tmax after second dose of study drug. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Time to First Detectable Concentration (Tfirst) of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysParticipants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Time to Reach a Concentration of 200 Nanometers (nM) (T200) of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysParticipants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Drug Concentration Half-Life From 5 to 24 Hours (t1/2[5-24h]) of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 dayst1/2\[5-24h\] is the time taken for the blood plasma concentration of a drug to halve from 5 to 24 hours. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Drug Concentration Half-Life From 5 to 14 Hours (t1/2[5-14h]) of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 dayst1/2\[5-14h\] is the time taken for the blood plasma concentration of a drug to halve from 5 to 14 hours. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Area Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysAUC can be used as a measure of drug exposure. It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body. AUC between specified timepoints included AUC0-4h, AUC4-12h, AUC6-12h, AUC12-24h, AUC0-10h, AUC4-10h, AUC6-10h, AUC10-24h, AUC(0-inf), AUC(24h-inf). Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported. Here, Nsignifies the number of participants evaluable for this outcome.
Area Under the Concentration Time Curve During a Dosing Interval at Steady State (AUCtau) of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysAUC can be used as a measure of drug exposure. It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body. AUCtau is defined as AUC during a dosing interval at steady state. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Area Under the Concentration Time Curve During a Dosing Interval at Steady State Adjusted by Dose (AUCtau/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysAUC can be used as a measure of drug exposure. It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body. Participants in Arm 1 underwent standardised in-house PK sampling during 14 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Area Under the Concentration Time Curve From Zero to 24 Hours Adjusted by Dose (AUC0-24h/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysAUC can be used as a measure of drug exposure. It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Area Under the Concentration Time Curve From Zero to 10 Hours Adjusted by Dose (AUC0-10h/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysAUC can be used as a measure of drug exposure. It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Area Under the Concentration Time Curve From Zero to 4 Hours Adjusted by Dose (AUC0-4h/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysAUC can be used as a measure of drug exposure. It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Average Concentration of S-cortisol During the Dosing Interval at Steady State Adjusted by Dose (Css,av/Dose) in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysCss,av was calculated as the area under the S-cortisol concentration versus time curve during a dosing interval at steady state (AUCtau) divided by dosing interval (tau). Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Maximal Concentration Adjusted by Dose (Cmax1/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysCmax is a term that refers to the maximum (or peak) concentration that a drug achieves in the body after the drug has been administrated. Cmax1 is the Cmax after first dose of study drug. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Maximal Concentration (Cmax1) of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysCmax is a term that refers to the maximum (or peak) concentration that a drug achieves in the body after the drug has been administrated. Cmax1 is the Cmax after first dose of study drug. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
First Detectable Concentration Adjusted by Dose (Cfirst/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysParticipants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Comparison of Overall Patient Tolerability Score Between Once Daily and Thrice Daily Therapy, Assessed by Patient and Investigator - Part A12 weeksOverall patient tolerability score assessed by patient and investigator, ranged from 1 (feeling poor on treatment) to 5 (feeling very well on treatment). The average total score ranges from 1 to 5 with a higher score representing better tolerability of the treatment. Questionnaire assessed by patient were I have been very poorly on the treatment, I haven't been very well (or less well) on the treatment, I have been acceptably well on the treatment, I have been well on the treatment and I have been very well on the treatment. Questionnaire assessed by investigator were The patient has been feeling very poorly on the treatment, The patient has not tolerated the treatment well, The patient has tolerated the treatment less well, The patient has tolerated the treatment well and The patient has tolerated the treatment very well.
Percentage (%) of Participants With Change From Baseline in Patient Tolerability Questionnaire at Month 6, Assessed by Patient and Investigator - Part BBaseline (week 0), month 6Patient tolerability questionnaire was assessed by both patient and investigator, the responses were as follows: improvement, no change, worsening and were reported.
Comparison of Quality of Life (QoL) Assessed by Short Form-36 Survey (SF-36) For Physical and Mental Component Score Between Once Daily and Thrice Daily Therapy- Part A12 weeksThe SF-36 was a questionnaire used to assess physical functioning and is made up of eight domains: physical functioning, role physical, bodily pain, general health, vitality, social functioning, role-emotional and mental health. Transforming and standardizing these domains lead to the calculation of the physical and mental component summary measures. Scores ranging from 0 to 100, with 0=worst score (or quality of life) and 100=best score. A higher value corresponds to better well-being.
Change From Baseline to 6 Months in Quality of Life (QoL) Assessed by Short Form-36 Survey (SF-36) For Physical and Mental Component Score - Part BBaseline (week 0), month 6The SF-36 was a questionnaire used to assess physical functioning and is made up of eight domains: physical functioning, role physical, bodily pain, general health, vitality, social functioning, role-emotional and mental health. Transforming and standardizing these domains lead to the calculation of the physical and mental component summary measures. Scores ranging from 0 to 100, with 0=worst score (or quality of life) and 100=best score. A higher value in the SF-36 questionnaire corresponds to better well-being.
Comparison of Quality of Life (QoL) Assessed by Fatigue Impact Scale (FIS) Total Score Between Once Daily and Thrice Daily Therapy - Part A12 weeksFIS is a subject-reported scale that qualifies the impact of fatigue on daily life in participants. It consisted of 40 statements that measure fatigue in 3 areas: physical, cognitive, and psychosocial. This 40-item scale evaluates the construct of perceived impact of fatigue on everyday life. Respondents rated each statement using a 5-point Likert-type scale ranging from 0 (no problem) to 4 (extreme problem). A total score ranged from 0 to 160. A lower value corresponds to better well-being.
Change From Baseline to 6 Months in Quality of Life (QoL) Assessed by Fatigue Impact Scale (FIS) Total Score - Part BBaseline (week 0), month 6FIS is a subject-reported scale that qualifies the impact of fatigue on daily life in participants. It consisted of 40 statements that measure fatigue in 3 areas: physical, cognitive, and psychosocial. This 40-item scale evaluates the construct of perceived impact of fatigue on everyday life. Respondents rated each statement using a 5-point Likert-type scale ranging from 0 (no problem) to 4 (extreme problem). A total score ranged from 0 to 160. A lower value corresponds to better well-being.
Comparison of Quality of Life (QoL) Assessed by Psychological General Well Being (PGWB) Total Scores Between Once Daily and Thrice Daily Therapy- Part A12 weeksThe PGWB consists of 22 self-administered items rated on a scale from 1 (worst level of well-being) to 6 (maximum level of well-being) with a total score ranging from 22 to 132. A higher score represents better well-being.
Change From Baseline to 6 Months in Quality of Life (QoL) Assessed by Psychological General Well Being (PGWB) Total Scores- Part BBaseline (week 0), month 6The PGWB consists of 22 self-administered items rated on a scale from 1 (worst level of well-being) to 6 (maximum level of well-being) with a total score ranging from 22 to 132. A higher score represents better well-being.
Change From Baseline to 12 Weeks in Diurnal Fatigue Questionnaire for Day Average of Once Daily Therapy - Part ABaseline (week 0), Week 12Diurnal fatigue was assessed at 8 ante meridian (AM), at 12 AM and at 4 post meridian (PM) by a visual analogue scale (VAS) based on 8 domains (energy, relaxed, less alert, moody, mental fatigue, intellectually slow, difficulty focusing, physical activity). Mean values were calculated for the morning (8 AM), the day (12 AM), the evening (4 PM) and mean per day (mean of 8 AM, 12 AM and 4 PM) were analyzed with score range from 0 to 100. A lower value corresponds to better well-being.
Change From Baseline to 6 Months in Diurnal Fatigue Questionnaire for Day Average- Part BBaseline (week 0), month 6Diurnal fatigue scores (Visual Analog Scale \[VAS\] scores of energy, relaxed, less alert, moody, mental fatigue, intellectually slow, difficulty focusing, physical activity) were analyzed with score range from 0 to 100. A lower value corresponds to better well-being.
Comparison on Participant Compliance Between Once Daily and Thrice Daily Therapy - Part AWeeks 4 up to 28Compliance was calculated as actual consumption/expected consumption Compliance = (Number of dispensed tablets - Number of returned tablets)/(Number of days during the study period x daily Number of hydrocortisone tablets when taking the ordinary daily dose).
Participant Compliance- Part BUp to Month 6 follow-upCompliance was calculated as actual consumption/expected consumption Compliance = (Number of dispensed tablets - Number of returned tablets)/(Number of days during the study period x daily Number of hydrocortisone tablets when taking the ordinary daily dose).
Comparison on Participant Preference by Questionnaire Between Once Daily and Thrice Daily Therapy-Part AWeeks 16 up to 28Participant Preference Questionnaire consisted of the following set of questions: 1. How large was the benefit with OD compared to TID and the responses were recorded as considerably poorer, somewhat poorer, comparable, large, very large; 2. How strongly concur with the following statement: I prefer novel OD to conventional TID and the responses were recorded as strongly disagree, disagree, neutral, strongly, very strongly; 3. How strongly concur with the following statement: I prefer conventional TID to novel OD and the responses were recorded as strongly disagree, disagree, neutral, strongly, very strongly.
Comparison on 24-hour Urinary Free Cortisol Between Once Daily and Thrice Daily Therapy-Part A12 weeks
Percentage (%) of Area Under the Concentration Time Curve (AUC) Extrapolation of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysThe percentage of AUC0-inf that is due to extrapolation from Tlast to infinity (AUC%Extrapolation) was calculated by using the formula AUC%extrapolation = 100\*(AUC0-inf minus AUC0-t)/AUC0-inf. The function of this parameter was to provide information about what percentage of the theoretical curve (AUC0-inf) was possible to determine experimentally (AUC0-t). Therefore, on average, it is expected that the residual area (AUCextrapolation) is not greater than 20%. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Percentage (%) of Fluctuation in Concentrations of S-cortisol at Steady State in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysPercentage of fluctuation was calculated by using formula 100\*(Cmax-minimum plasma concentration \[Cmin\])/Cavg,ss. It was peak trough fluctuation within one dosing interval at steady state. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Accumulation Ratio (Rac) of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysThe Rac was calculated as area under the S-cortisol concentration versus time curve during a dosing interval at steady state (AUCtau) on Day 28 divided by AUC0-24h on Day 1. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.
Time to First Detectable Concentration Adjusted by Dose (Tfirst/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part AArm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 daysParticipants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Participant flow

Pre-assignment details

Study consisted of Part A (cross-over) and Part B (open-label). Of the 64 participants started and completed Part A, 5 participants did not enter Part B (treatment switch=2, withdrawal by participant= 2, nausea and abnormal laboratory value=1), 59 started Part B of the study.

Participants by arm

ArmCount
Entire Study
Included all participants randomized to receive hydrocortisone MR tablets orally OD first or hydrocortisone tablets orally TID first; in any of the intervention periods during the 12-week cross-over period of Part A or hydrocortisone MR tablets orally OD during the 6-month open-label period of Part B.
63
Total63

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Part B - Open Label PeriodDid not attend the last visit001
Part B - Open Label PeriodTreatment switch001

Baseline characteristics

CharacteristicEntire Study
Age, Continuous47.3 years
STANDARD_DEVIATION 13.7
Sex: Female, Male
Female
26 Participants
Sex: Female, Male
Male
37 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —
other
Total, other adverse events
29 / 6425 / 6412 / 5916 / 5723 / 59
serious
Total, serious adverse events
6 / 642 / 642 / 594 / 576 / 59

Outcome results

Primary

Area Under the Concentration Time Curve From Zero to 24 Hours (AUC0-24h) of Total S-cortisol in Plasma After Multiple Doses During Part A

AUC can be used as a measure of drug exposure. It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The data for combined arm 1+2 after multiple doses were reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A: Intention-To-Treat (ITT) set included all randomised participants who took at least 1 dose of study drug with primary efficacy assessments including all pharmacokinetic (PK) samplings during either treatment period. Here number of participants analysed signifies those who were evaluable for the outcome measure.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AArea Under the Concentration Time Curve From Zero to 24 Hours (AUC0-24h) of Total S-cortisol in Plasma After Multiple Doses During Part A3962.0 hour*nanomole per literStandard Deviation 1079.6
Hydrocortisone Tablet TID - Part AArea Under the Concentration Time Curve From Zero to 24 Hours (AUC0-24h) of Total S-cortisol in Plasma After Multiple Doses During Part A4879.6 hour*nanomole per literStandard Deviation 1194.4
p-value: <0.000195% CI: [0.753, 0.862]ANOVA
Secondary

Accumulation Ratio (Rac) of S-cortisol in Plasma After Single and Multiple Dosing During Part A

The Rac was calculated as area under the S-cortisol concentration versus time curve during a dosing interval at steady state (AUCtau) on Day 28 divided by AUC0-24h on Day 1. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AAccumulation Ratio (Rac) of S-cortisol in Plasma After Single and Multiple Dosing During Part A1.11 ratioStandard Deviation 0.29
Hydrocortisone Tablet TID - Part AAccumulation Ratio (Rac) of S-cortisol in Plasma After Single and Multiple Dosing During Part A1.03 ratioStandard Deviation 0.19
p-value: 0.103295% CI: [-0.017, 0.177]Fisher's non-parametric permutation test
Secondary

Area Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part A

AUC can be used as a measure of drug exposure. It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body. AUC between specified timepoints included AUC0-4h, AUC4-12h, AUC6-12h, AUC12-24h, AUC0-10h, AUC4-10h, AUC6-10h, AUC10-24h, AUC(0-inf), AUC(24h-inf). Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported. Here, Nsignifies the number of participants evaluable for this outcome.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population.

ArmMeasureGroupValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AArea Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AAUC0-4h (N=61, 61)2053.7 hour*nanomole per literStandard Deviation 432
Hydrocortisone MR Tablet OD - Part AArea Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AAUC4-12h (N=61, 61)1491.8 hour*nanomole per literStandard Deviation 638.9
Hydrocortisone MR Tablet OD - Part AArea Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AAUC6-12h (N=61, 61)808.2 hour*nanomole per literStandard Deviation 386.3
Hydrocortisone MR Tablet OD - Part AArea Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AAUC12-24h (N=61, 61)306.2 hour*nanomole per literStandard Deviation 305.2
Hydrocortisone MR Tablet OD - Part AArea Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AAUC0-10h (N=61, 61)3388.4 hour*nanomole per literStandard Deviation 915
Hydrocortisone MR Tablet OD - Part AArea Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AAUC4-10h (N=61, 61)1334.7 hour*nanomole per literStandard Deviation 582.5
Hydrocortisone MR Tablet OD - Part AArea Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AAUC6-10h (N=61, 61)651.1 hour*nanomole per literStandard Deviation 322.1
Hydrocortisone MR Tablet OD - Part AArea Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AAUC10-24h (N=61, 61)465.0 hour*nanomole per literStandard Deviation 352.2
Hydrocortisone MR Tablet OD - Part AArea Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AAUC(0-inf) (N=52, 52)3972.6 hour*nanomole per literStandard Deviation 1125.9
Hydrocortisone MR Tablet OD - Part AArea Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AAUC(24h-inf) (N=52, 52)195.3 hour*nanomole per literStandard Deviation 568.1
Hydrocortisone Tablet TID - Part AArea Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AAUC10-24h (N=61, 61)1058.0 hour*nanomole per literStandard Deviation 752.4
Hydrocortisone Tablet TID - Part AArea Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AAUC0-4h (N=61, 61)1929.7 hour*nanomole per literStandard Deviation 409.9
Hydrocortisone Tablet TID - Part AArea Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AAUC4-10h (N=61, 61)1839.0 hour*nanomole per literStandard Deviation 599
Hydrocortisone Tablet TID - Part AArea Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AAUC4-12h (N=61, 61)2302.5 hour*nanomole per literStandard Deviation 669.3
Hydrocortisone Tablet TID - Part AArea Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AAUC(24h-inf) (N=52, 52)410.4 hour*nanomole per literStandard Deviation 1094
Hydrocortisone Tablet TID - Part AArea Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AAUC6-12h (N=61, 61)1607.6 hour*nanomole per literStandard Deviation 483.3
Hydrocortisone Tablet TID - Part AArea Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AAUC6-10h (N=61, 61)1144.1 hour*nanomole per literStandard Deviation 404.6
Hydrocortisone Tablet TID - Part AArea Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AAUC12-24h (N=61, 61)576.6 hour*nanomole per literStandard Deviation 681.6
Hydrocortisone Tablet TID - Part AArea Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AAUC(0-inf) (N=52, 52)5162.8 hour*nanomole per literStandard Deviation 1777.2
Hydrocortisone Tablet TID - Part AArea Under the Concentration Time Curve (AUC) Between Specified Timepoints of Total S-cortisol in Plasma After Single and Multiple Dosing During Part AAUC0-10h (N=61, 61)3768.7 hour*nanomole per literStandard Deviation 968.5
Comparison: AUC0-4hp-value: 0.000295% CI: [1.032, 1.097]ANOVA
Comparison: AUC4-12hp-value: <0.000195% CI: [0.563, 0.675]ANOVA
Comparison: AUC6-12hp-value: <0.000195% CI: [0.424, 0.525]ANOVA
Comparison: AUC12-24hp-value: 0.000395% CI: [0.446, 0.775]ANOVA
Comparison: AUC0-10hp-value: <0.000195% CI: [0.856, 0.935]ANOVA
Comparison: AUC4-10hp-value: <0.000195% CI: [0.632, 0.765]ANOVA
Comparison: AUC6-10hp-value: <0.000195% CI: [0.482, 0.605]ANOVA
Comparison: AUC10-24hp-value: <0.000195% CI: [0.338, 0.504]ANOVA
Comparison: AUC(0-inf)p-value: <0.000195% CI: [0.714, 0.843]ANOVA
Comparison: AUC(24h-inf)p-value: 0.87795% CI: [0.453, 2.521]ANOVA
Secondary

Area Under the Concentration Time Curve During a Dosing Interval at Steady State Adjusted by Dose (AUCtau/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A

AUC can be used as a measure of drug exposure. It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body. Participants in Arm 1 underwent standardised in-house PK sampling during 14 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AArea Under the Concentration Time Curve During a Dosing Interval at Steady State Adjusted by Dose (AUCtau/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A0.048 hour per literStandard Deviation 0.016
Hydrocortisone Tablet TID - Part AArea Under the Concentration Time Curve During a Dosing Interval at Steady State Adjusted by Dose (AUCtau/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A0.061 hour per literStandard Deviation 0.017
p-value: <0.000195% CI: [0.734, 0.851]ANOVA
Secondary

Area Under the Concentration Time Curve During a Dosing Interval at Steady State (AUCtau) of S-cortisol in Plasma After Single and Multiple Dosing During Part A

AUC can be used as a measure of drug exposure. It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body. AUCtau is defined as AUC during a dosing interval at steady state. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AArea Under the Concentration Time Curve During a Dosing Interval at Steady State (AUCtau) of S-cortisol in Plasma After Single and Multiple Dosing During Part A3962.0 hour*nanomole per literStandard Deviation 1079.6
Hydrocortisone Tablet TID - Part AArea Under the Concentration Time Curve During a Dosing Interval at Steady State (AUCtau) of S-cortisol in Plasma After Single and Multiple Dosing During Part A4879.6 hour*nanomole per literStandard Deviation 1194.4
p-value: <0.000195% CI: [0.753, 0.862]ANOVA
Secondary

Area Under the Concentration Time Curve From Zero to 10 Hours Adjusted by Dose (AUC0-10h/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A

AUC can be used as a measure of drug exposure. It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AArea Under the Concentration Time Curve From Zero to 10 Hours Adjusted by Dose (AUC0-10h/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A0.041 hour per literStandard Deviation 0.012
Hydrocortisone Tablet TID - Part AArea Under the Concentration Time Curve From Zero to 10 Hours Adjusted by Dose (AUC0-10h/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A0.046 hour per literStandard Deviation 0.013
p-value: <0.000195% CI: [0.844, 0.926]ANOVA
Secondary

Area Under the Concentration Time Curve From Zero to 24 Hours Adjusted by Dose (AUC0-24h/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A

AUC can be used as a measure of drug exposure. It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AArea Under the Concentration Time Curve From Zero to 24 Hours Adjusted by Dose (AUC0-24h/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A0.047 hour per literStandard Deviation 0.014
Hydrocortisone Tablet TID - Part AArea Under the Concentration Time Curve From Zero to 24 Hours Adjusted by Dose (AUC0-24h/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A0.060 hour per literStandard Deviation 0.018
p-value: <0.000195% CI: [0.741, 0.831]ANOVA
Secondary

Area Under the Concentration Time Curve From Zero to 4 Hours Adjusted by Dose (AUC0-4h/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A

AUC can be used as a measure of drug exposure. It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AArea Under the Concentration Time Curve From Zero to 4 Hours Adjusted by Dose (AUC0-4h/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A0.025 hour per literStandard Deviation 0.005
Hydrocortisone Tablet TID - Part AArea Under the Concentration Time Curve From Zero to 4 Hours Adjusted by Dose (AUC0-4h/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A0.024 hour per literStandard Deviation 0.006
p-value: 0.00295% CI: [1.02, 1.086]ANOVA
Secondary

Average Concentration of S-cortisol During the Dosing Interval at Steady State Adjusted by Dose (Css,av/Dose) in Plasma After Single and Multiple Dosing During Part A

Css,av was calculated as the area under the S-cortisol concentration versus time curve during a dosing interval at steady state (AUCtau) divided by dosing interval (tau). Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AAverage Concentration of S-cortisol During the Dosing Interval at Steady State Adjusted by Dose (Css,av/Dose) in Plasma After Single and Multiple Dosing During Part A0.002 per literStandard Deviation 0.001
Hydrocortisone Tablet TID - Part AAverage Concentration of S-cortisol During the Dosing Interval at Steady State Adjusted by Dose (Css,av/Dose) in Plasma After Single and Multiple Dosing During Part A0.003 per literStandard Deviation 0.001
p-value: <0.000195% CI: [-0.001, 0]Fisher's non-parametric permutation test
Secondary

Average Concentration of S-cortisol During the Dosing Interval at Steady State (Css,av) in Plasma After Single and Multiple Dosing During Part A

Css,av was calculated as the area under the S-cortisol concentration versus time curve during a dosing interval at steady state (AUCtau) divided by dosing interval (tau). Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AAverage Concentration of S-cortisol During the Dosing Interval at Steady State (Css,av) in Plasma After Single and Multiple Dosing During Part A165.1 nanomoles per literStandard Deviation 45
Hydrocortisone Tablet TID - Part AAverage Concentration of S-cortisol During the Dosing Interval at Steady State (Css,av) in Plasma After Single and Multiple Dosing During Part A203.3 nanomoles per literStandard Deviation 49.8
p-value: <0.000195% CI: [-50.276, 25.876]Fisher's non-parametric permutation test
Secondary

Change From Baseline to 12 Weeks in Diurnal Fatigue Questionnaire for Day Average of Once Daily Therapy - Part A

Diurnal fatigue was assessed at 8 ante meridian (AM), at 12 AM and at 4 post meridian (PM) by a visual analogue scale (VAS) based on 8 domains (energy, relaxed, less alert, moody, mental fatigue, intellectually slow, difficulty focusing, physical activity). Mean values were calculated for the morning (8 AM), the day (12 AM), the evening (4 PM) and mean per day (mean of 8 AM, 12 AM and 4 PM) were analyzed with score range from 0 to 100. A lower value corresponds to better well-being.

Time frame: Baseline (week 0), Week 12

Population: ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AChange From Baseline to 12 Weeks in Diurnal Fatigue Questionnaire for Day Average of Once Daily Therapy - Part A-3.1 scores on a scaleStandard Deviation 12.1
p-value: 0.97Wilcoxon Signed Rank test
Secondary

Change From Baseline to 6 Months in Diurnal Fatigue Questionnaire for Day Average- Part B

Diurnal fatigue scores (Visual Analog Scale \[VAS\] scores of energy, relaxed, less alert, moody, mental fatigue, intellectually slow, difficulty focusing, physical activity) were analyzed with score range from 0 to 100. A lower value corresponds to better well-being.

Time frame: Baseline (week 0), month 6

Population: Part B ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AChange From Baseline to 6 Months in Diurnal Fatigue Questionnaire for Day Average- Part B-0.180 scores on a scaleStandard Deviation 7.943
p-value: 0.2624Wilcoxon Signed Rank test
Secondary

Change From Baseline to 6 Months in Quality of Life (QoL) Assessed by Fatigue Impact Scale (FIS) Total Score - Part B

FIS is a subject-reported scale that qualifies the impact of fatigue on daily life in participants. It consisted of 40 statements that measure fatigue in 3 areas: physical, cognitive, and psychosocial. This 40-item scale evaluates the construct of perceived impact of fatigue on everyday life. Respondents rated each statement using a 5-point Likert-type scale ranging from 0 (no problem) to 4 (extreme problem). A total score ranged from 0 to 160. A lower value corresponds to better well-being.

Time frame: Baseline (week 0), month 6

Population: Part B ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AChange From Baseline to 6 Months in Quality of Life (QoL) Assessed by Fatigue Impact Scale (FIS) Total Score - Part B-1.09 scores on a scaleStandard Deviation 12.49
p-value: 0.5982Wilcoxon Signed Rank test
Secondary

Change From Baseline to 6 Months in Quality of Life (QoL) Assessed by Psychological General Well Being (PGWB) Total Scores- Part B

The PGWB consists of 22 self-administered items rated on a scale from 1 (worst level of well-being) to 6 (maximum level of well-being) with a total score ranging from 22 to 132. A higher score represents better well-being.

Time frame: Baseline (week 0), month 6

Population: Part B ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AChange From Baseline to 6 Months in Quality of Life (QoL) Assessed by Psychological General Well Being (PGWB) Total Scores- Part B-0.739 scores on a scaleStandard Deviation 9.687
p-value: 0.8676Wilcoxon Signed Rank test
Secondary

Change From Baseline to 6 Months in Quality of Life (QoL) Assessed by Short Form-36 Survey (SF-36) For Physical and Mental Component Score - Part B

The SF-36 was a questionnaire used to assess physical functioning and is made up of eight domains: physical functioning, role physical, bodily pain, general health, vitality, social functioning, role-emotional and mental health. Transforming and standardizing these domains lead to the calculation of the physical and mental component summary measures. Scores ranging from 0 to 100, with 0=worst score (or quality of life) and 100=best score. A higher value in the SF-36 questionnaire corresponds to better well-being.

Time frame: Baseline (week 0), month 6

Population: Part B ITT population with participants evaluable for this outcome.

ArmMeasureGroupValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AChange From Baseline to 6 Months in Quality of Life (QoL) Assessed by Short Form-36 Survey (SF-36) For Physical and Mental Component Score - Part BMental component-0.896 scores on a scaleStandard Deviation 5.913
Hydrocortisone MR Tablet OD - Part AChange From Baseline to 6 Months in Quality of Life (QoL) Assessed by Short Form-36 Survey (SF-36) For Physical and Mental Component Score - Part BPhysical component0.390 scores on a scaleStandard Deviation 4.374
Comparison: Change From Baseline to 6 months in Quality of Life (QoL) Assessed by Short Form-36 Survey (SF-36) For Physical Component Scorep-value: 0.8418Wilcoxon Signed Rank
Comparison: Change From Baseline to 6 months in Quality of Life (QoL) Assessed by Short Form-36 Survey (SF-36) For Mental Component Scorep-value: 0.355Wilcoxon Signed Rank test
Secondary

Comparison of Overall Patient Tolerability Score Between Once Daily and Thrice Daily Therapy, Assessed by Patient and Investigator - Part A

Overall patient tolerability score assessed by patient and investigator, ranged from 1 (feeling poor on treatment) to 5 (feeling very well on treatment). The average total score ranges from 1 to 5 with a higher score representing better tolerability of the treatment. Questionnaire assessed by patient were I have been very poorly on the treatment, I haven't been very well (or less well) on the treatment, I have been acceptably well on the treatment, I have been well on the treatment and I have been very well on the treatment. Questionnaire assessed by investigator were The patient has been feeling very poorly on the treatment, The patient has not tolerated the treatment well, The patient has tolerated the treatment less well, The patient has tolerated the treatment well and The patient has tolerated the treatment very well.

Time frame: 12 weeks

Population: Part A ITT population

ArmMeasureGroupValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AComparison of Overall Patient Tolerability Score Between Once Daily and Thrice Daily Therapy, Assessed by Patient and Investigator - Part APatient4.28 scores on a scaleStandard Deviation 0.74
Hydrocortisone MR Tablet OD - Part AComparison of Overall Patient Tolerability Score Between Once Daily and Thrice Daily Therapy, Assessed by Patient and Investigator - Part AInvestigator4.26 scores on a scaleStandard Deviation 0.73
Hydrocortisone Tablet TID - Part AComparison of Overall Patient Tolerability Score Between Once Daily and Thrice Daily Therapy, Assessed by Patient and Investigator - Part APatient4.36 scores on a scaleStandard Deviation 0.73
Hydrocortisone Tablet TID - Part AComparison of Overall Patient Tolerability Score Between Once Daily and Thrice Daily Therapy, Assessed by Patient and Investigator - Part AInvestigator4.33 scores on a scaleStandard Deviation 0.73
Comparison: Patientp-value: 0.376795% CI: [-0.25, 0.094]Fisher's test
Comparison: Investigatorp-value: 0.462595% CI: [-0.235, 0.107]Fisher's test
Secondary

Comparison of Quality of Life (QoL) Assessed by Fatigue Impact Scale (FIS) Total Score Between Once Daily and Thrice Daily Therapy - Part A

FIS is a subject-reported scale that qualifies the impact of fatigue on daily life in participants. It consisted of 40 statements that measure fatigue in 3 areas: physical, cognitive, and psychosocial. This 40-item scale evaluates the construct of perceived impact of fatigue on everyday life. Respondents rated each statement using a 5-point Likert-type scale ranging from 0 (no problem) to 4 (extreme problem). A total score ranged from 0 to 160. A lower value corresponds to better well-being.

Time frame: 12 weeks

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AComparison of Quality of Life (QoL) Assessed by Fatigue Impact Scale (FIS) Total Score Between Once Daily and Thrice Daily Therapy - Part A22.6 scores on a scaleStandard Deviation 25.4
Hydrocortisone Tablet TID - Part AComparison of Quality of Life (QoL) Assessed by Fatigue Impact Scale (FIS) Total Score Between Once Daily and Thrice Daily Therapy - Part A26.4 scores on a scaleStandard Deviation 30.3
p-value: 0.0823Fisher's
Secondary

Comparison of Quality of Life (QoL) Assessed by Psychological General Well Being (PGWB) Total Scores Between Once Daily and Thrice Daily Therapy- Part A

The PGWB consists of 22 self-administered items rated on a scale from 1 (worst level of well-being) to 6 (maximum level of well-being) with a total score ranging from 22 to 132. A higher score represents better well-being.

Time frame: 12 weeks

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AComparison of Quality of Life (QoL) Assessed by Psychological General Well Being (PGWB) Total Scores Between Once Daily and Thrice Daily Therapy- Part A110.5 scores on a scaleStandard Deviation 14
Hydrocortisone Tablet TID - Part AComparison of Quality of Life (QoL) Assessed by Psychological General Well Being (PGWB) Total Scores Between Once Daily and Thrice Daily Therapy- Part A107.7 scores on a scaleStandard Deviation 17.3
p-value: 0.0632Fisher's test
Secondary

Comparison of Quality of Life (QoL) Assessed by Short Form-36 Survey (SF-36) For Physical and Mental Component Score Between Once Daily and Thrice Daily Therapy- Part A

The SF-36 was a questionnaire used to assess physical functioning and is made up of eight domains: physical functioning, role physical, bodily pain, general health, vitality, social functioning, role-emotional and mental health. Transforming and standardizing these domains lead to the calculation of the physical and mental component summary measures. Scores ranging from 0 to 100, with 0=worst score (or quality of life) and 100=best score. A higher value corresponds to better well-being.

Time frame: 12 weeks

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureGroupValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AComparison of Quality of Life (QoL) Assessed by Short Form-36 Survey (SF-36) For Physical and Mental Component Score Between Once Daily and Thrice Daily Therapy- Part APhysical component49.3 scores on a scaleStandard Deviation 9.1
Hydrocortisone MR Tablet OD - Part AComparison of Quality of Life (QoL) Assessed by Short Form-36 Survey (SF-36) For Physical and Mental Component Score Between Once Daily and Thrice Daily Therapy- Part AMental component51.1 scores on a scaleStandard Deviation 7.3
Hydrocortisone Tablet TID - Part AComparison of Quality of Life (QoL) Assessed by Short Form-36 Survey (SF-36) For Physical and Mental Component Score Between Once Daily and Thrice Daily Therapy- Part APhysical component50.0 scores on a scaleStandard Deviation 9.9
Hydrocortisone Tablet TID - Part AComparison of Quality of Life (QoL) Assessed by Short Form-36 Survey (SF-36) For Physical and Mental Component Score Between Once Daily and Thrice Daily Therapy- Part AMental component49.8 scores on a scaleStandard Deviation 9.3
Comparison: Comparison of Quality of Life (QoL) Assessed by Short Form-36 Survey (SF-36) For Physical Component Scorep-value: 0.3332Fisher's test
Comparison: Comparison of Quality of Life (QoL) Assessed by Short Form-36 Survey (SF-36) For Mental Component Scorep-value: 0.3405Fisher's test
Secondary

Comparison on 24-hour Urinary Free Cortisol Between Once Daily and Thrice Daily Therapy-Part A

Time frame: 12 weeks

Population: Part A Safety population consisted of all randomised patients who took at least one dose of study medication. Safety population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AComparison on 24-hour Urinary Free Cortisol Between Once Daily and Thrice Daily Therapy-Part A385.7 nanomoles per 24 hoursStandard Deviation 178.8
Hydrocortisone Tablet TID - Part AComparison on 24-hour Urinary Free Cortisol Between Once Daily and Thrice Daily Therapy-Part A425.9 nanomoles per 24 hoursStandard Deviation 278.8
p-value: 0.0034Wilcoxon Signed Rank test
Secondary

Comparison on Participant Compliance Between Once Daily and Thrice Daily Therapy - Part A

Compliance was calculated as actual consumption/expected consumption Compliance = (Number of dispensed tablets - Number of returned tablets)/(Number of days during the study period x daily Number of hydrocortisone tablets when taking the ordinary daily dose).

Time frame: Weeks 4 up to 28

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AComparison on Participant Compliance Between Once Daily and Thrice Daily Therapy - Part A104.8 percentage useStandard Deviation 7.5
Hydrocortisone Tablet TID - Part AComparison on Participant Compliance Between Once Daily and Thrice Daily Therapy - Part A103.1 percentage useStandard Deviation 13.2
Secondary

Comparison on Participant Preference by Questionnaire Between Once Daily and Thrice Daily Therapy-Part A

Participant Preference Questionnaire consisted of the following set of questions: 1. How large was the benefit with OD compared to TID and the responses were recorded as considerably poorer, somewhat poorer, comparable, large, very large; 2. How strongly concur with the following statement: I prefer novel OD to conventional TID and the responses were recorded as strongly disagree, disagree, neutral, strongly, very strongly; 3. How strongly concur with the following statement: I prefer conventional TID to novel OD and the responses were recorded as strongly disagree, disagree, neutral, strongly, very strongly.

Time frame: Weeks 16 up to 28

Population: Part A ITT population

ArmMeasureGroupValue (NUMBER)
Hydrocortisone MR Tablet OD - Part AComparison on Participant Preference by Questionnaire Between Once Daily and Thrice Daily Therapy-Part ABenefit compared OD to TID: Considerably poorer3.8 percentage of preference
Hydrocortisone MR Tablet OD - Part AComparison on Participant Preference by Questionnaire Between Once Daily and Thrice Daily Therapy-Part ABenefit compared OD to TID: Somewhat poorer5.7 percentage of preference
Hydrocortisone MR Tablet OD - Part AComparison on Participant Preference by Questionnaire Between Once Daily and Thrice Daily Therapy-Part ABenefit compared OD to TID: Comparable5.7 percentage of preference
Hydrocortisone MR Tablet OD - Part AComparison on Participant Preference by Questionnaire Between Once Daily and Thrice Daily Therapy-Part ABenefit compared OD to TID: Large20.8 percentage of preference
Hydrocortisone MR Tablet OD - Part AComparison on Participant Preference by Questionnaire Between Once Daily and Thrice Daily Therapy-Part ABenefit compared OD to TID: Very large64.2 percentage of preference
Hydrocortisone MR Tablet OD - Part AComparison on Participant Preference by Questionnaire Between Once Daily and Thrice Daily Therapy-Part APrefer OD to TID: Strongly disagree3.7 percentage of preference
Hydrocortisone MR Tablet OD - Part AComparison on Participant Preference by Questionnaire Between Once Daily and Thrice Daily Therapy-Part APrefer OD to TID: Disagree3.7 percentage of preference
Hydrocortisone MR Tablet OD - Part AComparison on Participant Preference by Questionnaire Between Once Daily and Thrice Daily Therapy-Part APrefer OD to TID: Neutral5.6 percentage of preference
Hydrocortisone MR Tablet OD - Part AComparison on Participant Preference by Questionnaire Between Once Daily and Thrice Daily Therapy-Part APrefer OD to TID: Strongly25.9 percentage of preference
Hydrocortisone MR Tablet OD - Part AComparison on Participant Preference by Questionnaire Between Once Daily and Thrice Daily Therapy-Part APrefer OD to TID: Very strongly61.1 percentage of preference
Hydrocortisone MR Tablet OD - Part AComparison on Participant Preference by Questionnaire Between Once Daily and Thrice Daily Therapy-Part APrefer TID to OD: Strongly disagree39.6 percentage of preference
Hydrocortisone MR Tablet OD - Part AComparison on Participant Preference by Questionnaire Between Once Daily and Thrice Daily Therapy-Part APrefer TID to OD: Disagree35.4 percentage of preference
Hydrocortisone MR Tablet OD - Part AComparison on Participant Preference by Questionnaire Between Once Daily and Thrice Daily Therapy-Part APrefer TID to OD: Neutral12.5 percentage of preference
Hydrocortisone MR Tablet OD - Part AComparison on Participant Preference by Questionnaire Between Once Daily and Thrice Daily Therapy-Part APrefer TID to OD: Strongly4.2 percentage of preference
Hydrocortisone MR Tablet OD - Part AComparison on Participant Preference by Questionnaire Between Once Daily and Thrice Daily Therapy-Part APrefer TID to OD: Very strongly8.3 percentage of preference
p-value: <0.0001Sign test
Secondary

Concentration at 6 Hours (C6h) of S-cortisol in Plasma After Single and Multiple Dosing During Part A

Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AConcentration at 6 Hours (C6h) of S-cortisol in Plasma After Single and Multiple Dosing During Part A278.5 nanomoles per literStandard Deviation 134.9
Hydrocortisone Tablet TID - Part AConcentration at 6 Hours (C6h) of S-cortisol in Plasma After Single and Multiple Dosing During Part A426.7 nanomoles per literStandard Deviation 135.2
p-value: <0.000195% CI: [-189.469, -106.561]Fisher's non-parametric permutation test
Secondary

Concentration at 7 Hours (C7h) of S-cortisol in Plasma After Single and Multiple Dosing During Part A

Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AConcentration at 7 Hours (C7h) of S-cortisol in Plasma After Single and Multiple Dosing During Part A214.1 nanomoles per literStandard Deviation 106.8
Hydrocortisone Tablet TID - Part AConcentration at 7 Hours (C7h) of S-cortisol in Plasma After Single and Multiple Dosing During Part A322.4 nanomoles per literStandard Deviation 110
p-value: <0.000195% CI: [-140.193, -76.42]Fisher's non-parametric permutation test
Secondary

Drug Concentration Half-Life From 5 to 14 Hours (t1/2[5-14h]) of S-cortisol in Plasma After Single and Multiple Dosing During Part A

t1/2\[5-14h\] is the time taken for the blood plasma concentration of a drug to halve from 5 to 14 hours. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part ADrug Concentration Half-Life From 5 to 14 Hours (t1/2[5-14h]) of S-cortisol in Plasma After Single and Multiple Dosing During Part A4.60 hoursStandard Deviation 5.82
Hydrocortisone Tablet TID - Part ADrug Concentration Half-Life From 5 to 14 Hours (t1/2[5-14h]) of S-cortisol in Plasma After Single and Multiple Dosing During Part A18.4 hoursStandard Deviation 24.5
p-value: <0.000195% CI: [-20.533, -7.067]Fisher's non-parametric permutation test
Secondary

Drug Concentration Half-Life From 5 to 24 Hours (t1/2[5-24h]) of S-cortisol in Plasma After Single and Multiple Dosing During Part A

t1/2\[5-24h\] is the time taken for the blood plasma concentration of a drug to halve from 5 to 24 hours. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part ADrug Concentration Half-Life From 5 to 24 Hours (t1/2[5-24h]) of S-cortisol in Plasma After Single and Multiple Dosing During Part A7.32 hoursStandard Deviation 9.32
Hydrocortisone Tablet TID - Part ADrug Concentration Half-Life From 5 to 24 Hours (t1/2[5-24h]) of S-cortisol in Plasma After Single and Multiple Dosing During Part A1.84 hoursStandard Deviation 0.93
p-value: 0.000395% CI: [0.751, 10.268]Fisher's non-parametric permutation test
Secondary

First Detectable Concentration Adjusted by Dose (Cfirst/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A

Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AFirst Detectable Concentration Adjusted by Dose (Cfirst/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A0.003 per literStandard Deviation 0.002
Hydrocortisone Tablet TID - Part AFirst Detectable Concentration Adjusted by Dose (Cfirst/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A0.004 per literStandard Deviation 0.002
p-value: 0.001595% CI: [-0.001, 0]Fisher's non-parametric permutation test
Secondary

First Detectable Concentration (Cfirst) of S-cortisol in Plasma After Single and Multiple Dosing During Part A

Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AFirst Detectable Concentration (Cfirst) of S-cortisol in Plasma After Single and Multiple Dosing During Part A229.0 nanomoles per literStandard Deviation 169.8
Hydrocortisone Tablet TID - Part AFirst Detectable Concentration (Cfirst) of S-cortisol in Plasma After Single and Multiple Dosing During Part A295.1 nanomoles per literStandard Deviation 203.2
p-value: 0.003395% CI: [-109.201, 22.362]Fisher's non-parametric permutation test
Secondary

Maximal Concentration Adjusted by Dose (Cmax1/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A

Cmax is a term that refers to the maximum (or peak) concentration that a drug achieves in the body after the drug has been administrated. Cmax1 is the Cmax after first dose of study drug. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AMaximal Concentration Adjusted by Dose (Cmax1/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A0.008 per literStandard Deviation 0.002
Hydrocortisone Tablet TID - Part AMaximal Concentration Adjusted by Dose (Cmax1/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A0.010 per literStandard Deviation 0.002
p-value: <0.000195% CI: [-0.002, -0.001]Fisher's non-parametric permutation test
Secondary

Maximal Concentration (Cmax1) of S-cortisol in Plasma After Single and Multiple Dosing During Part A

Cmax is a term that refers to the maximum (or peak) concentration that a drug achieves in the body after the drug has been administrated. Cmax1 is the Cmax after first dose of study drug. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AMaximal Concentration (Cmax1) of S-cortisol in Plasma After Single and Multiple Dosing During Part A690.7 nanomoles per literStandard Deviation 109.2
Hydrocortisone Tablet TID - Part AMaximal Concentration (Cmax1) of S-cortisol in Plasma After Single and Multiple Dosing During Part A802.8 nanomoles per literStandard Deviation 136.2
p-value: <0.000195% CI: [-133.98, 89.999]Fisher's non-parametric permutation test
Secondary

Maximal Concentration (Cmax2) of S-cortisol in Plasma After Single and Multiple Dosing During Part A

Cmax is a term that refers to the maximum (or peak) concentration that a drug achieves in the body after the drug has been administrated. Cmax2 is the Cmax after second dose of study drug. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AMaximal Concentration (Cmax2) of S-cortisol in Plasma After Single and Multiple Dosing During Part A553.8 nanomoles per literStandard Deviation 170.8
Hydrocortisone Tablet TID - Part AMaximal Concentration (Cmax2) of S-cortisol in Plasma After Single and Multiple Dosing During Part A446.9 nanomoles per literStandard Deviation 129.3
p-value: 0.035795% CI: [16.755, 204.078]Fisher's non-parametric permutation test
Secondary

Participant Compliance- Part B

Compliance was calculated as actual consumption/expected consumption Compliance = (Number of dispensed tablets - Number of returned tablets)/(Number of days during the study period x daily Number of hydrocortisone tablets when taking the ordinary daily dose).

Time frame: Up to Month 6 follow-up

Population: Part B ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part AParticipant Compliance- Part B102.3 percentage useStandard Deviation 12.8
Secondary

Percentage (%) of Area Under the Concentration Time Curve (AUC) Extrapolation of S-cortisol in Plasma After Single and Multiple Dosing During Part A

The percentage of AUC0-inf that is due to extrapolation from Tlast to infinity (AUC%Extrapolation) was calculated by using the formula AUC%extrapolation = 100\*(AUC0-inf minus AUC0-t)/AUC0-inf. The function of this parameter was to provide information about what percentage of the theoretical curve (AUC0-inf) was possible to determine experimentally (AUC0-t). Therefore, on average, it is expected that the residual area (AUCextrapolation) is not greater than 20%. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part APercentage (%) of Area Under the Concentration Time Curve (AUC) Extrapolation of S-cortisol in Plasma After Single and Multiple Dosing During Part A10.1 percentage of AUCStandard Deviation 7.9
Hydrocortisone Tablet TID - Part APercentage (%) of Area Under the Concentration Time Curve (AUC) Extrapolation of S-cortisol in Plasma After Single and Multiple Dosing During Part A9.26 percentage of AUCStandard Deviation 12.74
p-value: <0.000195% CI: [2.94, 12.646]ANOVA
Secondary

Percentage (%) of Fluctuation in Concentrations of S-cortisol at Steady State in Plasma After Single and Multiple Dosing During Part A

Percentage of fluctuation was calculated by using formula 100\*(Cmax-minimum plasma concentration \[Cmin\])/Cavg,ss. It was peak trough fluctuation within one dosing interval at steady state. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part APercentage (%) of Fluctuation in Concentrations of S-cortisol at Steady State in Plasma After Single and Multiple Dosing During Part A429.7 percentage of fluctuationStandard Deviation 117.3
Hydrocortisone Tablet TID - Part APercentage (%) of Fluctuation in Concentrations of S-cortisol at Steady State in Plasma After Single and Multiple Dosing During Part A396.2 percentage of fluctuationStandard Deviation 99
p-value: 0.039695% CI: [1.734, 65.329]Fisher's non-parametric permutation test
Secondary

Percentage (%) of Participants With Change From Baseline in Patient Tolerability Questionnaire at Month 6, Assessed by Patient and Investigator - Part B

Patient tolerability questionnaire was assessed by both patient and investigator, the responses were as follows: improvement, no change, worsening and were reported.

Time frame: Baseline (week 0), month 6

Population: Part B ITT population with participants evaluable for this outcome.

ArmMeasureGroupValue (NUMBER)
Hydrocortisone MR Tablet OD - Part APercentage (%) of Participants With Change From Baseline in Patient Tolerability Questionnaire at Month 6, Assessed by Patient and Investigator - Part BImprovement (Patient)10.7 percentage of participants
Hydrocortisone MR Tablet OD - Part APercentage (%) of Participants With Change From Baseline in Patient Tolerability Questionnaire at Month 6, Assessed by Patient and Investigator - Part BImprovement (Investigator)14.0 percentage of participants
Hydrocortisone MR Tablet OD - Part APercentage (%) of Participants With Change From Baseline in Patient Tolerability Questionnaire at Month 6, Assessed by Patient and Investigator - Part BNo change (Patient)73.2 percentage of participants
Hydrocortisone MR Tablet OD - Part APercentage (%) of Participants With Change From Baseline in Patient Tolerability Questionnaire at Month 6, Assessed by Patient and Investigator - Part BNo change (Investigator)70.0 percentage of participants
Hydrocortisone MR Tablet OD - Part APercentage (%) of Participants With Change From Baseline in Patient Tolerability Questionnaire at Month 6, Assessed by Patient and Investigator - Part BWorsening (Patient)16.1 percentage of participants
Hydrocortisone MR Tablet OD - Part APercentage (%) of Participants With Change From Baseline in Patient Tolerability Questionnaire at Month 6, Assessed by Patient and Investigator - Part BWorsening (Investigator)16.0 percentage of participants
Comparison: Patientp-value: 0.6072Sign test
Comparison: Investigatorp-value: 1Sign test
Secondary

Time to First Detectable Concentration Adjusted by Dose (Tfirst/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A

Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEAN)Dispersion
Hydrocortisone MR Tablet OD - Part ATime to First Detectable Concentration Adjusted by Dose (Tfirst/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A2.26 (hour per nanomole)*10^6Standard Deviation 1.69
Hydrocortisone Tablet TID - Part ATime to First Detectable Concentration Adjusted by Dose (Tfirst/Dose) of S-cortisol in Plasma After Single and Multiple Dosing During Part A2.32 (hour per nanomole)*10^6Standard Deviation 1.43
p-value: 0.782795% CI: [-0.444, 0.334]Fisher's non-parametric permutation test
Secondary

Time to First Detectable Concentration (Tfirst) of S-cortisol in Plasma After Single and Multiple Dosing During Part A

Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEDIAN)
Hydrocortisone MR Tablet OD - Part ATime to First Detectable Concentration (Tfirst) of S-cortisol in Plasma After Single and Multiple Dosing During Part A0.229 hours
Hydrocortisone Tablet TID - Part ATime to First Detectable Concentration (Tfirst) of S-cortisol in Plasma After Single and Multiple Dosing During Part A0.208 hours
p-value: 0.668795% CI: [-0.038, 0.024]Fisher's non-parametric permutation test
Secondary

Time to Peak Plasma Concentration (Tmax1) of S-cortisol in Plasma After Single and Multiple Dosing During Part A

Tmax is the time after administration of a drug when the maximum plasma concentration in the body is reached. Tmax1 is the Tmax after first dose of study drug. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEDIAN)
Hydrocortisone MR Tablet OD - Part ATime to Peak Plasma Concentration (Tmax1) of S-cortisol in Plasma After Single and Multiple Dosing During Part A1.00 hours
Hydrocortisone Tablet TID - Part ATime to Peak Plasma Concentration (Tmax1) of S-cortisol in Plasma After Single and Multiple Dosing During Part A0.750 hours
p-value: 0.021495% CI: [0.028, 0.512]Fisher's non-parametric permutation test
Secondary

Time to Peak Plasma Concentration (Tmax2) of S-cortisol in Plasma After Single and Multiple Dosing During Part A

Tmax is the time after administration of a drug when the maximum plasma concentration in the body is reached. Tmax2 is the Tmax after second dose of study drug. Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEDIAN)
Hydrocortisone MR Tablet OD - Part ATime to Peak Plasma Concentration (Tmax2) of S-cortisol in Plasma After Single and Multiple Dosing During Part A5.00 hours
Hydrocortisone Tablet TID - Part ATime to Peak Plasma Concentration (Tmax2) of S-cortisol in Plasma After Single and Multiple Dosing During Part A6.00 hours
p-value: 0.071495% CI: [-2.098, 0.015]Fisher's non-parametric permutation test
Secondary

Time to Reach a Concentration of 200 Nanometers (nM) (T200) of S-cortisol in Plasma After Single and Multiple Dosing During Part A

Participants in Arm 1 underwent standardised in-house PK sampling during 24 hours in order to assess single-dose PK of OD or TID regimen at the start of each study treatment period while participants in Arm 2 had a reduced PK sampling scheme of single dose PK on Days 1-2 and returned for multiple-dose PK sampling on Days 7-8. The average of single and multiple dosing for combined arm 1+2 was reported.

Time frame: Arm 1: Week 4, Week 16, Week 16 + 1 day, Week 28; Arm 2: Week 4, Week 4 + 7 days, Week 16, Week 16 + 7 days

Population: Part A ITT population with participants evaluable for this outcome.

ArmMeasureValue (MEDIAN)
Hydrocortisone MR Tablet OD - Part ATime to Reach a Concentration of 200 Nanometers (nM) (T200) of S-cortisol in Plasma After Single and Multiple Dosing During Part A0.250 hours
Hydrocortisone Tablet TID - Part ATime to Reach a Concentration of 200 Nanometers (nM) (T200) of S-cortisol in Plasma After Single and Multiple Dosing During Part A0.167 hours
p-value: 0.02895% CI: [0.006, 0.093]Fisher's non-parametric permutation test

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026