Proof of Concept Study to Investigate the Recurrence of Acne Post Isotretinoin

The recruitment status of this study is unknown because the information has not been verified recently.
Verified June 2010 by Dermatrials Research.
Recruitment status was  Active, not recruiting
Sponsor:
Collaborator:
Johnson & Johnson
Information provided by:
Dermatrials Research
ClinicalTrials.gov Identifier:
NCT00939133
First received: July 11, 2009
Last updated: June 25, 2010
Last verified: June 2010
  Purpose

The use of topical retinoids is a mainstay and basis of early acne treatment to prevent the progression to inflammatory lesions. Post oral isotretinoin, it is not uncommon for non-inflammatory papules and comedones to recur. However, there has been no formal study to look at the prevention of recurrence of these acne lesions post isotretinoin in a long term basis. This may enhance the therapeutic options for post isotretinoin patients in order to prevent recurrence of their disease.

Hypothesis Tretinoin microsphere 0.04% will prevent recurrence of acne lesions.


Condition Intervention Phase
Acne
Drug: tretinoin microsphere 0.04% gel
Drug: vehicle gel
Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Double Blind (Subject, Investigator, Outcomes Assessor)
Primary Purpose: Prevention
Official Title: Double Blinded Vehicle Controlled Proof of Concept Study to Investigate the Recurrence of Inflammatory and Non-inflammatory Acne Lesions Using Tretinoin Gel (Microsphere) 0.04% in Male Patients Post Oral Isotretinoin Use

Resource links provided by NLM:


Further study details as provided by Dermatrials Research:

Primary Outcome Measures:
  • Primary objectives-to assess the efficacy of Retin A micro 0.04% on the recurrence rate of acne post isotretinoin use compared to vehicle. [ Time Frame: Six Months ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • The percent change in lesion counts from baseline to week 16 and 24. [ Time Frame: Six Months ] [ Designated as safety issue: No ]
  • Proportion of subjects who have a Subject's Global [ Time Frame: Assessment score of 0 or 1 at week 16 and 24 ] [ Designated as safety issue: No ]
  • Proportion of subjects who have an ISGA score of 0 or 1 at week 16 and 24. [ Time Frame: At week 16 and 24 ] [ Designated as safety issue: No ]

Estimated Enrollment: 20
Study Start Date: July 2009
Estimated Study Completion Date: December 2010
Estimated Primary Completion Date: December 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Tretinoin microsphere 0.04% gel Drug: tretinoin microsphere 0.04% gel
Applied daily to entire face for six months
Other Name: Retin A micro 0.04%
Placebo Comparator: Vehicle gel Drug: vehicle gel
Placebo

Detailed Description:

Subjects will be randomized 1:1 to study product or vehicle. Subjects will be randomly assigned to each group by an unblinded dispenser.

The study duration will be 24 weeks with visits at baseline (week 0), week 4, week 8, week 16 and week 24. All study products will be administered once daily for 24 weeks. Subjects will apply a sufficient amount of study product to cover the entire face.

  Eligibility

Ages Eligible for Study:   18 Years to 45 Years
Genders Eligible for Study:   Male
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

Subjects must fulfill all of the following criteria to be eligible for study admission:

  • Males aged between 18 and 45 years old who have successfully completed a treatment of acne with oral isotretinoin (Min 4 months/Maximum 6 months with an average of 5 months and a total of 120-150mg/kg/course).
  • Who can attend scheduled study follow-up visits at the outpatient dermatology clinic.
  • Agree to informed consent for participation in a study.
  • Agree to comply with the treatment and follow up procedures.

Exclusion Criteria:

  • Patients who receive isotretinoin for condition other than acne vulgaris.
  • Patients who have been off isotretinoin for less than 30 days or more than 90 days at the time of enrollment of the study.
  • Patients who have used prescription topical acne treatment (tretinoin, benzoyl peroxide, topical antibiotics or any combination products) between the end of therapy of isotretinoin within 2 weeks of study enrollment or oral antibiotics of any type between the end of therapy of isotretinoin within 4 weeks of study enrollment and throughout the study.
  • Patients who have been previously diagnosed with an endocrinological disorder likely to cause acne such as genital/adrenal hyperplasia, adrenal tumors or any other hypo androgenetic state.
  • Patients who are using any of the systemic medications likely to cause or abate acne such as oral Dilantin or any other epileptic, Finasteride, Spironolactone or Flutamine, testosterone or dietary body-building protein powders.
  • Have any nodulo-cystic lesions at baseline.
  • Used topical corticosteroids on the face or systemic corticosteroids within the past 4 weeks. Use of inhaled, intra-articular, or intra-lesional steroids other than for facial acne is acceptable.
  • Are currently using any medication that in the opinion of the investigator may affect the action or evaluation of the study product or place the subject at undue risk.
  • Used abradants, facials, peels containing glycolic or other acids; masks, washes, or soaps containing BPO, salicylic acid, or sulfacetamide sodium; non-mild facial cleansers; moisturizers that contain retinol, salicylic acid, or α- or β-hydroxy acids within the past 2 weeks.
  • Plan to use medications that are reported to exacerbate acne (e.g., mega-doses of certain vitamins, such as vitamin D [> 2000 IU per day] and vitamin B12 [> 1 mg/day], haloperidol, halogens [e.g., iodide and bromide], lithium, hydantoin, and phenobarbital), because these may impact efficacy assessments. Subjects who plan to use multivitamins, iron supplements and folate are acceptable.
  • Had a facial procedure (such as chemical or laser peel, microdermabrasion, blue light treatment, etc) performed by an esthetician, beautician, physician, nurse, or other practitioner, within the past 4 weeks or if it is planned to be performed during the conduct of the study.
  • Have a known hypersensitivity or have had previous allergic reaction to any of the active components or excipients of the study product.
  • Used any investigational therapy within the past 4 weeks, or currently participating in another clinical study.
  • Are currently abusing drugs or alcohol (drug screening not required).
  • Have a significant medical history of being immunocompromised.
  • Have other conditions that, in the judgment of the investigator, would put the subject at unacceptable risk for participation in the study.
  • Had any major illness within 30 days before the screening examination.
  • Currently are employees of R Vender, an investigator, or contract research organization (CRO) involved in the study, or an immediate family member (partner, offspring, parents, siblings or sibling's offspring) of an employee involved in the study.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00939133

Locations
Canada, Ontario
Dermatrials Research
Hamilton, Ontario, Canada, L8N 1V6
Sponsors and Collaborators
Dermatrials Research
Johnson & Johnson
Investigators
Principal Investigator: Ronald Vender, MD FRCPC Dermatrials Research
  More Information

No publications provided

Responsible Party: Ronald Vender MD FRCPC, Dermatrials Research
ClinicalTrials.gov Identifier: NCT00939133     History of Changes
Other Study ID Numbers: C2009-01
Study First Received: July 11, 2009
Last Updated: June 25, 2010
Health Authority: Canada: Ethics Review Committee

Keywords provided by Dermatrials Research:
acne
tretinoin
isotretinoin
recurrence
Retin A micro

Additional relevant MeSH terms:
Recurrence
Disease Attributes
Pathologic Processes
Isotretinoin
Tretinoin
Antineoplastic Agents
Dermatologic Agents
Keratolytic Agents
Pharmacologic Actions
Therapeutic Uses

ClinicalTrials.gov processed this record on October 20, 2014