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Trial registered on ANZCTR


Registration number
ACTRN12615000772549
Ethics application status
Approved
Date submitted
21/07/2015
Date registered
27/07/2015
Date last updated
21/10/2015
Type of registration
Prospectively registered

Titles & IDs
Public title
Comparative assessment of the absorption of a test formulation of 1 x 40 mg isotretinoin capsule against the innovator 2 x 20 mg isotretinoin capsules conducted under fed conditions in healthy male volunteers.
Scientific title
A single dose, randomized, blinded, pharmacokinetic study of a test formulation of 1 x 40 mg isotretinoin capsule in a 2 way crossover comparison against the innovator 2 x 20 mg isotretinoin capsules conducted under fed conditions in healthy male volunteers.
Secondary ID [1] 287123 0
None
Universal Trial Number (UTN)
U1111-1171-4681
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Bioequivalence study conducted in healthy volunteers comparing a formulation of isotretinoin with no health condition or problem studied.

Although this study is being conducted in healthy volunteers who are not being treated for the condition to which the medicine is used, isotretinoin is a medicine that is used to treat severe forms of acne. 295659 0
Condition category
Condition code
Other 295936 295936 0 0
Research that is not of generic health relevance and not applicable to specific health categories listed above

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Single dose, crossover study design whereby each participant receives the test formulation of isotretinoin, 1 x 40 mg capsule on one occasion and the innovator formulation of isotretinoin, 2 x 20 mg capsules on one occasion with each dose separated by a two week washout period. The intervention for this trial is the test formulation of isotretinoin.

No water is allowed for 1 hour prior to dosing until 1 hour after dosing (except for the water consumed with each dose).

Participants are required not to eat for 10 hours before receiving a standardised high fat content meal and to fast for approximately 4 hours after each dose.

Bathroom visits will be supervised to ensure no unauthorized water or food intake and for personal safety.

Participants will be confined at the Clinical Site for 12 hours prior to dosing to ensure compliance and for 24 hours after dosing.

Participants will be monitored for adverse events throughout the study.

Standard meals will be consumed at the Clinical Site with no additional food intake allowed. Alcohol breath testing will be performed upon each participant reporting to the Clinical Site 12 hours prior to dosing.

Pre and post study laboratory tests will be completed to assess the health of the participants along with HIV, Hepatitis and drugs of abuse testing.

Each dose will be taken orally with 240 ml of water at ambient temperature. Medication must be swallowed whole and a mouth check will be conducted to ensure that the medication has been taken as directed.
Intervention code [1] 292373 0
Treatment: Drugs
Comparator / control treatment
Single dose, crossover study whereby each participant receives the test formulation of isotretinoin (1 x 40 mg) on one occasion and the innovator formulation of isotretinoin (2 x 20 mg) on one occasion with each dose separated by a two week washout period. The comparator/control for this trial is the innovator formulation of isotretinoin.
Control group
Active

Outcomes
Primary outcome [1] 295615 0
To evaluate the pharmacokinetics (as summarised by Cmax and AUC) of the test formulation relative to that of the reference formulation. All plasma samples will be assayed for isotretinoin using one fully validated LC/MS/MS method. Validation will be conducted to comply with FDA guidelines.
Timepoint [1] 295615 0
0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 10.0, 12.0, 16.0, 20.0, 24.0, 32.0, 48.0, 56.0 and 72 hours after dosing.
Secondary outcome [1] 315991 0
Time to maximum peak concentration (Tmax) will be determined by plasma sample analysis. Tmax will be the time where the maximum concentration occurred in the sample points.
Timepoint [1] 315991 0
0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 10.0, 12.0, 16.0, 20.0, 24.0, 32.0, 48.0, 56.0 and 72 hours after dosing.

Eligibility
Key inclusion criteria
Healthy males
Aged between 18 and 55 years
Non-smoker
BMI greater than or equal to 18 and less than 33 inclusive
Normal, healthy individuals as determined by medical history, physical examination, ECG, blood pressure and laboratory tests
Drug free as determined by urine drug testing
Able to comply with the study restrictions
Able to provide written informed consent
Minimum age
18 Years
Maximum age
55 Years
Sex
Males
Can healthy volunteers participate?
Yes
Key exclusion criteria
Females
History of recent recurrent attacks of bronchitis, asthma or migraine headaches
Concomitant drug therapy of any kind
Received an investigational compound or drug known to induce or inhibit liver enzymes within 60 days of the start of the study
History of depression or other mental illness, or a history of epilepsy or seizures
History of conditions that might interfere with the absorption, distribution, metabolism or excretion of the drug
History of alcohol or drug abuse or dependency
Sensitivities to Vitamin A or food such as liver
Participation in a drug study within 60 days of the start of the study or undertaking to donate blood within 60 days after the completion of the study
Sensitivities to isotretinoin, its excipients or any other retinoids
Contact lens wearers and individuals who have very fair skin and a strong propensity to sunburn
Individuals for whom the Clinical Investigator believes, for any reason, that participation would not be an acceptable risk

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
All formulations will be labeled as Formulation A and B. The identification of each treatment will only be known to the Managing Director and Section Head - Trials and Regulatory Affairs or their delegate. Randomisation will be performed using a randomisation table created by computer software (i.e. computerised sequence generation).
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Each participant will be identified by a 3 digit screening number and a 2 digit subject number. The screening number will be issued once the participant has given written consent to participate in the study and the two digit study number (randomisation number) after acceptance into the study.
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
Intervention assignment
Crossover
Other design features
Phase
Phase 1
Type of endpoint/s
Pharmacokinetics
Statistical methods / analysis

Recruitment
Recruitment status
Completed
Date of first participant enrolment
Anticipated
3/08/2015
Actual
11/08/2015
Date of last participant enrolment
Anticipated
Actual
1/09/2015
Date of last data collection
Anticipated
Actual
Sample size
Target
24
Accrual to date
Final
24
Recruitment outside Australia
Country [1] 7041 0
New Zealand
State/province [1] 7041 0
Otago

Funding & Sponsors
Funding source category [1] 291680 0
Commercial sector/Industry
Name [1] 291680 0
Douglas Pharmaceuticals Limited
Country [1] 291680 0
New Zealand
Primary sponsor type
Commercial sector/Industry
Name
Zenith Technology Corp Ltd
Address
PO Box 1777
Dunedin
Country
New Zealand
Secondary sponsor category [1] 290358 0
None
Name [1] 290358 0
Address [1] 290358 0
Country [1] 290358 0

Ethics approval
Ethics application status
Approved
Ethics committee name [1] 293210 0
Northern A Health and Disability Ethics Committee
Ethics committee address [1] 293210 0
Ethics committee country [1] 293210 0
New Zealand
Date submitted for ethics approval [1] 293210 0
Approval date [1] 293210 0
21/07/2015
Ethics approval number [1] 293210 0
15/NTA/84

Summary
Brief summary
Trial website
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 58914 0
Dr Noelyn Hung
Address 58914 0
Zenith Technology Corp Ltd
PO Box 1777,
Dunedin 9016
Country 58914 0
New Zealand
Phone 58914 0
+6434779669
Fax 58914 0
+6434779605
Email 58914 0
[email protected]
Contact person for public queries
Name 58915 0
Linda Folland
Address 58915 0
Zenith Technology Corp Ltd
PO Box 1777,
Dunedin 9016
Country 58915 0
New Zealand
Phone 58915 0
+6434779669
Fax 58915 0
+6434779605
Email 58915 0
[email protected]
Contact person for scientific queries
Name 58916 0
Cheung-Tak Hung
Address 58916 0
Zenith Technology Corp Ltd
PO Box 1777,
Dunedin 9016
Country 58916 0
New Zealand
Phone 58916 0
+6434779669
Fax 58916 0
+6434779605
Email 58916 0
[email protected]

No information has been provided regarding IPD availability


What supporting documents are/will be available?

No Supporting Document Provided



Results publications and other study-related documents

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