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Acne VulgarisPhase 1NCT02498288

A Study to Determine Bioequivalence of Isotretinoin in Healthy Male Subjects Under Fed Condition

A Phase 1 study testing Isotretinoin: Reference Medication 1, Isotretinoin: Reference Medication 2 and Isotretinoin: Test Medication in people with Acne Vulgaris, run by GlaxoSmithKline at 1 site in Mexico.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is an open-label, crossover, randomized, single dose, three treatments, three periods and six sequences, single dosage, balanced study to determine Bioequivalence of Isotretinoin. Read more about this study

Who is it for?
Ages 18 to 45 years, men onlyHealthy volunteers can take part
Conditions the study is for
Acne Vulgaris
What is being tested?
Isotretinoin: Reference Medication 1, Isotretinoin: Reference Medication 2 and Isotretinoin: Test Medication
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
36 participants
Where
1 siteMexico
Study dates
31 May 2013to 15 Jul 2013
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 45 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Included in study will be male volunteers.
  • Ages between 18 and 45 years old.
  • BMI (Body Mass Index) between 20 to 26 kilogram/meter square (kg/m^2).
  • Anti-doping tests negative results.
  • Negative test results for Ac human immunodeficiency virus (HIV), HBsAg (hepatitis B surface antigen), and rapid plasma regain (RPR; syphilis test).
  • Clinical biochemical test values: Hematic Biometry, Urine Analysis, Biochemical Profile: (Glucose, Ureic Nitrogen, Urea, Creatinine, Uric Acid, Cholesterol, Triglycerides, Total Proteins, Albumin, Globulin, Bilirubin (total, indirect and direct), Alkaline Phosphatase (ALP), Lactic Dehydrogenase, Asparate aminotransferase (AST), Alanine aminotransferase (ALT), Calcium, Phosphorus, Sodium, Potassium, Chlorine and Iron), Ac HIV, HBsAg and RPR, must fall within an interval between minimum and maximum values in connection to said tests accepted values.
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  • Normal Electrocardiogram (ECG) and Chest X-rays.
  • Complete the scale 'Columbia Suicide Severity Rating Scale' (C-SSRS), before and after each dosification period.
  • Obtain a grade of zero in the C-SSRS.
  • Signed the Informed Consent corresponding to the bioequivalence study.
  • In exception cases, accepted may be a candidate for which any previously mentioned test is exceeded regarding considered valid maximum and minimum accepted normal values, as long as it involves an isolated value and there are no other manifestations which could allow assuming that a given value is related to a disease or is remnant of another. These cases must be approved by clinical area and declared as "Non-clinically significant".

Who cannot join

  • Electrocardiographic Anomalies; radiological
  • Anti-doping tests positive results,
  • Positive results regarding RPR; HIV and HBsAg tests.
  • Personal or family history of allergy to medication in question.
  • Having any kind of allergy, since these persons are in higher risk of suffering from medication allergy.
  • Tobacco use.
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  • Persons undergoing any medical treatment.
  • Existence of concurrent or intercurrent disease.
  • History psychiatric disorder (eg, Major Depressive Disorder, Generalized Anxiety Disorder, Bipolar Disorder (I or II), or schizophrenia).
  • Existence of justified doubt regarding questionnaire answers truthfulness.
  • Having participated in bioequivalence or bioavailability studies or having donated blood 2 months before the study.
  • Presence of clinically important gastrointestinal diseases or malabsorption history during the last year.
  • Presence of a medical condition requiring regular medication (with prescription or over-the- counter medication) with systemic absorption.
  • Drugs or alcohol addiction history requiring treatment.
  • Refuse to take the scale 'C-SSRS, before and after each dosification period.
  • Obtain a grade greater than zero in the C-SSRS.
  • Do not sign the Informed Consent corresponding to the bioequivalence study.
  • Finally, excluded will be all those volunteers not meeting that established in Mexican Official Standard NOM-177-SSA1-1998.

Trial locations and contacts

1 site in 1 country.

Mexico1 site
  • GSK Investigational Site

    Monterrey, Nuevo León, 64600

Other trials in Mexico

About this study

Official title: Bioequivalence Study for an Isotretinoin Pharmaceutical Preparation - Capsules. Open, Crossover, Randomized, Single Dose, Three Treatments, Three Periods and Six Sequences With Meal (Breakfast) Study

This is an open-label, crossover, randomized, single dose, three treatments, three periods and six sequences, single dosage, balanced study to determine Bioequivalence of Isotretinoin. Bioequivalence will be compared between the reference medication one (T1) vs the test medication (T3): (T1 vs T3); and the reference medication two (T2), vs test medication (T3): (T2 vs T3). Finally, treatments T1 vs T2 will be compared statistically to determine if they are bioequivalent.

Conditions
Acne Vulgaris
Being tested
Isotretinoin: Reference Medication 1, Isotretinoin: Reference Medication 2, Isotretinoin: Test Medication
Keywords
capsule, Isotretinoin, Bioequivalence
Medical subject headings
Acne Vulgaris

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Isotretinoin: Reference Medication 1Drug

    Isotretinoin reference medication 1 will be 40 mg in the pharmaceutical form of capsule (2 capsules of 20 mg each)

  • Isotretinoin: Reference Medication 2Drug

    Isotretinoin reference medication 2 will be 40 mg in the pharmaceutical form of capsule (2 capsules of 20 mg each)

  • Isotretinoin: Test MedicationDrug

    Isotretinoin test medication will contain isotretinoin 40 mg (2 capsules of 20 mg each) in the same type of pharmaceutical presentation, containing the same drug but possible to have a different excipients.

Study groups in NCT02498288
Study groupRoleWhat they receive
Isotretinoin ArmExperimentalAll subjects in this study will be randomized to receive all the 3 distinct medications of isotretinoin in a sequential manner. Subjects will receive a single dosage of two capsules x 20 mg (40 mg) orally, for three periods, six sequences, with a wash-out period of two weeks to eliminate the first dosage.
Receives: Drug: Isotretinoin: Reference Medication 1; Drug: Isotretinoin: Reference Medication 2; Drug: Isotretinoin: Test Medication

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Area under the plasma concentration-time curve from zero hours to last quantifiable time (AUC0-t)

    Bioequivalence will be evaluated for isotretinoin 40 mg using three distinct medications; two assigned as reference medication (T1 and T2) and 1 test medication (T3). Each subject will receive 2 capsules (20 mg each) orally.

    Measured: Pre-dose and 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 6.0, 7.0, 8.0, 10.0, 12.0, 16.0, 24.0, 36.0, 48.0, 60.0, 72.0 and 96.0 hours post dose in each treatment period

  2. Area under the plasma concentration-time curve from zero hours to infinite (AUC0-infinity)

    Bioequivalence will be evaluated for isotretinoin 40 mg using three distinct medications; two assigned as reference medication (T1 and T2) and 1 test medication (T3). Each subject will receive 2 capsules (20 mg each) orally.

    Measured: Pre-dose and 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 6.0, 7.0, 8.0, 10.0, 12.0, 16.0, 24.0, 36.0, 48.0, 60.0, 72.0 and 96.0 hours post dose in each treatment period

  3. Maximum drug concentration (Cmax)

    Bioequivalence will be evaluated for isotretinoin 40 mg using three distinct medications; two assigned as reference medication (T1 and T2) and 1 test medication (T3). Each subject will receive 2 capsules (20 mg each) orally.

    Measured: Pre-dose and 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 6.0, 7.0, 8.0, 10.0, 12.0, 16.0, 24.0, 36.0, 48.0, 60.0, 72.0 and 96.0 hours post dose in each treatment period

  4. Time to maximum drug concentration (Tmax)

    Bioequivalence will be evaluated for isotretinoin 40 mg using three distinct medications; two assigned as reference medication (T1 and T2) and 1 test medication (T3). Each subject will receive 2 capsules (20 mg each) orally.

    Measured: Pre-dose and 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 6.0, 7.0, 8.0, 10.0, 12.0, 16.0, 24.0, 36.0, 48.0, 60.0, 72.0 and 96.0 hours post dose in each treatment period

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Jul 2015 (estimated)
  2. Study start31 May 2013
  3. Primary completion15 Jul 2013
  4. Study completion15 Jul 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02498288
Sponsor's protocol ID
200115
Status last verified
Jun 2017
First submitted
16 May 2013
Last updated
12 Jun 2017
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Isotretinoin: Reference Medication 1, Isotretinoin: Reference Medication 2 and Isotretinoin: Test Medication in people with Acne Vulgaris, run by GlaxoSmithKline at 1 site in Mexico.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 11 inclusion and 18 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 12 Jun 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Mexico. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Area under the plasma concentration-time curve from zero hours to last quantifiable time (AUC0-t) (time frame: Pre-dose and 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 6.0, 7.0, 8.0, 10.0, 12.0, 16.0, 24.0, 36.0, 48.0, 60.0, 72.0 and 96.0 hours post dose in each treatment period). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Jun 2017.

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