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Test Uniformity of Transdermal Drug Delivery to Breast Using Diclofenac Epolamine

This study is ongoing, but not recruiting participants.
Information provided by (Responsible Party):
Northwestern University Identifier:
First received: June 22, 2011
Last updated: April 4, 2014
Last verified: April 2014

The purpose of this study is to look for ways to improve breast cancer treatment by giving breast cancer drugs through the skin of the breast.

The drug used in this study is a diclofenac epolamine patch and is a nonsteroid anti-inflammatory pain reliever. The drug amount that gathers in the breast, after application of a patch to the skin of the breast, will be measured and compared to the amount that is found in the breast when the patch is applied to the skin of the belly.

Condition Intervention Phase
Breast Cancer
Other: Diclofenac epolamine patch
Phase 0

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Prevention
Official Title: Pilot Study to Test Uniformity of Transdermal Drug Delivery to the Breast Using Diclofenac Epolamine as a Model

Resource links provided by NLM:

Further study details as provided by Northwestern University:

Primary Outcome Measures:
  • Compare concentrations of diclofenac epolamine patch when applied to breast vs. abdomen [ Time Frame: after 3 days of treatment prior to surgery ] [ Designated as safety issue: Yes ]
    The primary objective of this protocol will demonstrate that diclofenac epolamine patch applied to the skin of the breast for three days (1, 2) prior to surgery will result in significantly higher drug concentrations in the breast than the same dose applied to the abdominal skin for the same duration of time.

Secondary Outcome Measures:
  • Determine how the concentrations of the study patch is distributed in the breast. [ Time Frame: after three days of treatment prior to surgery ] [ Designated as safety issue: Yes ]
    To establish that the diclofenac epolamine drug concentrations achieved in the breast have no significant fall-off with increasing distance from the site of application. Therefore, uniform therapeutic concentrations are achieved throughout the breast with a single site of local transdermal therapy (LTT).

Estimated Enrollment: 25
Study Start Date: June 2011
Estimated Study Completion Date: July 2017
Estimated Primary Completion Date: July 2016 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Breast Group
Diclofenac epolamine patch applied to the breast
Other: Diclofenac epolamine patch
Patch (10cm X 14cm) is comprised of an adhesive material containing 1.3% diclofenac epolamine which is applied to a non-woven polyester felt backing and covered with a polypropylene film release liner [B].
Other Name: Flecto Patch
Experimental: Abdomen Group
Diclofenac epolamine patch applied to the abdomen
Other: Diclofenac epolamine patch
Patch (10cm X 14cm) is comprised of an adhesive material containing 1.3% diclofenac epolamine which is applied to a non-woven polyester felt backing and covered with a polypropylene film release liner [B].
Other Name: Flecto Patch

Detailed Description:

This is a randomized study where participants in group 1 will apply the diclofenac epolamine patch to the breast and participants in group 2 will apply the same drug to her abdomen. Participants are instructed to apply a new patch every 12 hours for 3 days. Total participation in this study will be for three days, ending on the day of surgery. On the day of surgery, participants will have blood drawn to measure the level of diclofenac epolamine in the body, and the final patch will be removed.


Ages Eligible for Study:   18 Years to 80 Years
Genders Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Women between the ages of 18 and 80 years, undergoing total mastectomy for, with or without axillary surgery for diagnosis or prevention of breast cancer.
  • ECOG performance status less than 2.
  • Ability to understand and the willingness to sign a written informed consent.
  • Participants must have normal organ and marrow function

Exclusion Criteria:

  • Prior history of ipsilateral breast radiotherapy.
  • Pregnant women and those who will be actively breast-feeding in the preoperative period will be excluded.
  • Inability to discontinue aspirin or warfarin use during the period of participation.
  • Known allergy to diclofenac epolamine, or aspirin, diclofenac (Cataflam, Voltaren), or another non-steroidal anti-inflammatory drug (NSAID).
  • Renal failure
  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: NCT01380353

United States, Illinois
Northwestern University
Chicago, Illinois, United States, 60611
Sponsors and Collaborators
Northwestern University
Principal Investigator: Seema Khan, MD Northwestern University
  More Information

No publications provided

Responsible Party: Northwestern University Identifier: NCT01380353     History of Changes
Other Study ID Numbers: NU 10B05, STU00042939
Study First Received: June 22, 2011
Last Updated: April 4, 2014
Health Authority: United States: Institutional Review Board

Keywords provided by Northwestern University:
Women undergoing total mastectomy
Breast cancer prevention

Additional relevant MeSH terms:
Diclofenac hydroxyethylpyrrolidine
Analgesics, Non-Narcotic
Anti-Inflammatory Agents
Anti-Inflammatory Agents, Non-Steroidal
Antirheumatic Agents
Central Nervous System Agents
Cyclooxygenase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Peripheral Nervous System Agents
Pharmacologic Actions
Physiological Effects of Drugs
Sensory System Agents
Therapeutic Uses processed this record on February 27, 2015