This site became the new on June 19th. Learn more.
Show more Menu IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu
Give us feedback

Human Repeated Insult Patch Test (HRIPT) of Azelaic Acid Pre Foam Formulation

This study has been completed.
Information provided by (Responsible Party):
Bayer Identifier:
First received: September 6, 2011
Last updated: February 27, 2014
Last verified: February 2014
The purpose of this study is to determine the dermal sensitization potential of azelaic acid pre-foam formulation.

Condition Intervention Phase
Healthy Drug: azelaic acid pre foam formulation Drug: Vehicle pre foam formulation Drug: Water Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Investigator)
Primary Purpose: Basic Science
Official Title: A Randomized, Double-blind, Vehicle Controlled Phase 1 Dermal Safety Study to Evaluate the Sensitizing Potential of Topically Applied Azelaic Acid Pre-foam Formulation in Healthy Subjects Using a Human Repeated Insult Patch Test Design

Resource links provided by NLM:

Further study details as provided by Bayer:

Primary Outcome Measures:
  • skin sensitization reaction [ Time Frame: day 3 to 6 of challenge phase week (week 6 or later, at least 2 weeks after the 3 week induction phase) ]
    skin reactions will be assessed, using a standardized scoring scale

Enrollment: 240
Study Start Date: September 2011
Study Completion Date: December 2011
Primary Completion Date: December 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Verum
Topical application of verum (azelaic acid pre foam formulation) on the skin
Drug: azelaic acid pre foam formulation
Placebo Comparator: Vehicle
Topical application of vehicle formulation (same as verum but without active drug substance) on the skin
Drug: Vehicle pre foam formulation
Placebo Comparator: Negative control
Topical application of distilled water (negative control) on the skin
Drug: Water

Detailed Description:
In an induction phase a three times weekly exposure over three weeks will be performed, followed by a resting phase. In a following challenge phase single exposure will be performed again and potential skin reactions observed. If skin reactions occur an optional re-challenge phase may be performed.

Ages Eligible for Study:   18 Years to 65 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • healthy volunteers
  • male or female subjects
  • aged 18 - 65 years
  • ability to understand and fulfill the study requirements

Exclusion Criteria:

  • affected skin in designated test area
  • pregnancy or lactation
  • not willing to comply with study requirements
  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 identifier: NCT01430533

United States, North Dakota
Robert I. Cooper, MD
Fargo, North Dakota, United States, 58104
Sponsors and Collaborators
Study Director: Bayer Study Director Bayer
  More Information

Additional Information:
Responsible Party: Bayer Identifier: NCT01430533     History of Changes
Other Study ID Numbers: 15854
1401842 ( Other Identifier: Company Internal )
Study First Received: September 6, 2011
Last Updated: February 27, 2014

Keywords provided by Bayer:
dermal sensitization potential

Additional relevant MeSH terms:
Azelaic acid
Antineoplastic Agents
Dermatologic Agents processed this record on August 16, 2017