This was an open label, randomized, single dose, three period crossover pharmacokinetic study of Chronocort® in 30 healthy male volunteers. The study was conducted in smaller sub groups (Group 1, n=18 and Group 2, n=12).

Inclusion Criteria:

• Healthy male volunteers between 18 and 60 years of age, inclusive (at screening).

• Subjects with a Body Mass Index (BMI) of 21-28. Body Mass Index = Body weight (kg) / (Height (m))2.

• Subjects with no clinically significant abnormal serum biochemistry, haematology and urine examination values within 14 days of the start of the study. The parameters measured included those shown in Appendix 3 of the Study Protocol.

• Subjects with a negative urinary drugs of abuse screen (including alcohol), determined within 14 days of the start of the study.

• Subjects with negative HIV and Hepatitis B and C results.

• Subjects with no clinically significant abnormalities in 12-lead electrocardiogram (ECG) determined within 14 days of the start of the study.

• Subjects with no clinically-significant deviation outside the normal ranges for blood pressure and pulse measurements.

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

  • Oral contraceptive + condom
  • Intra-uterine device (IUD) + condom
  • Diaphragm with spermacide + condom

• Subjects must have been available to complete the study.

• Subjects must have satisfied a medical examiner about their fitness to participate in the study.

• Subjects must have provided written informed consent to participate in the study.

Exclusion Criteria:

• A clinically significant history of gastrointestinal disorder likely to influence drug absorption.
• Receipt of regular medication within 14 days of the first study day (including high dose vitamins, dietary supplements or herbal remedies).
• Evidence of renal, hepatic, central nervous system, respiratory, cardiovascular or metabolic dysfunction.
• A clinically significant history of previous allergy / sensitivity to Hydrocortisone.
• A clinically significant history of drug or alcohol abuse.
• Inability to communicate well with the Investigator (i.e., language problem, poor mental development or impaired cerebral function).
• Participation in a New Chemical Entity clinical study within the previous 16 weeks or a marketed drug clinical study within the previous 12 weeks.
• Subjects who had consumed more than 2 units of alcohol per day within seven (7) days prior to the first dose or had consumed any alcohol within the 48 hour period prior to the first dose.
• Donation of 450ml or more blood within the previous 12 weeks.
• Subjects who worked shifts (i.e. regularly alternated between days, afternoons and nights).