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A Phase II Study of ACZONE™ (Dapsone) Gel, 5% As a Treatment For Tarceva® (Erlotinib)Related Rash

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ClinicalTrials.gov Identifier: NCT00343187
Recruitment Status : Terminated (Lack of enrollment)
First Posted : June 22, 2006
Last Update Posted : May 30, 2011
Information provided by:

Brief Summary:
The purpose of this study is to evaluate the safety and preliminary efficacy of ACZONE in subjects treated with the HER1/EGFR inhibitor Tarceva (erlotinib) who develop a rash on the face

Condition or disease Intervention/treatment Phase
Rash Non-small-Cell Lung Cancer Drug: ACZONE (dapsone) Gel, 5% Drug: Vehicle Control Phase 2

Detailed Description:

This will be a randomized, double-blind, parallel design study in subjects treated with Tarceva for non-small cell lung cancer (NSCLC) who subsequently develop a rash suspected to be related to Tarceva. Only subjects who are not glucose-6-phosphate dehydrogenase (G6PD) deficient, and who have locally advanced or metastatic NSCLC and have failed at least 1 prior chemotherapy regimen indicated for Tarceva treatment will be included. Subjects will be screened and consented for the study within 3 days of initiating Tarceva therapy and will be instructed to contact the Investigator immediately when signs or symptoms of rash appear on the face. Subjects will be enrolled into the study only if a rash develops on the face and it has been confirmed and evaluated against eligibility criteria for the study.

Once enrolled, subjects will be randomly assigned to apply either ACZONE or placebo to the rash-affected areas of the face. Subjects will apply ACZONE / placebo treatment for 8 weeks, even if symptoms of the rash resolve completely. Specific efficacy assessments will include lesion counts, plaque area, erythema assessment, and pruritus assessment. Rash characteristics will be monitored using National Cancer Institute (NCI) Common Terminology Criteria Adverse Event (CTCAE) version 3.0 terms and severity descriptions and percentage of facial surface area (FSA) affected. Investigators will evaluate the subject's overall response to treatment according to a standardized multiple choice question. Throughout the study, photographs of the face will be taken.

Safety will be followed for 10 weeks (8 weeks of therapy + 2 weeks of follow-up) by monitoring adverse events, concomitant medications, and chemistry and hematology parameters. Plasma dapsone and N-acetyl dapsone concentrations will be measured to determine systemic exposure to the study treatment. Steady state plasma concentrations of erlotinib will also be measured before and after initiating the study treatment to determine any potential effects of ACZONE on pharmacokinetics of Tarceva.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 2 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double
Primary Purpose: Treatment
Official Title: A Phase II, Randomized, Double-Blind, Parallel Design Study to Evaluate ACZONE™ (Dapsone) Gel, 5% As a Treatment For Rash Related to the Human Epidermal Growth Factor Receptor 1 (HER1)/Epidermal-Growth-Factor-Receptor (EGFR) Inhibitor Tarceva® (Erlotinib)
Study Start Date : June 2006
Actual Primary Completion Date : July 2007
Actual Study Completion Date : July 2007

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Rashes
Drug Information available for: Dapsone

Primary Outcome Measures :
  1. Safety: Adverse events; laboratory parameters; Vital signs; Pharmacokinetics

Secondary Outcome Measures :
  1. Efficacy: Lesion counts; Plaque area; % of FSA affected; Erythema Score; Pruritus VAS Score; CTCAE v3.0 Grade for rash; Proportion of subjects who have rash on the face that worsens to specific category.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

To be eligible for the study, subjects must fulfill all of the following criteria:

  1. Be male or female ≥18 years of age (inclusive).
  2. Have been prescribed Tarceva as a single agent to treat locally advanced or metastatic NSCLC, after failing at least 1 prior chemotherapy regimen.
  3. Present with acute signs and symptoms of rash on the face that meet the following criteria:

    1. Are suspected to be related to Tarceva,
    2. Include at least 3 inflammatory lesions, and
    3. Are less than CTCAE Grade 3 in severity.
  4. Have an Eastern Co-operative Oncology Group (ECOG) performance status ≤2 and a life expectancy of at least 4 months.
  5. Sign an approved informed consent form for the study.
  6. Be willing to comply with the protocol.

Exclusion Criteria:

Subjects meeting any of the following criteria will be excluded from the study:

  1. A skin examination reveals the presence of another skin disease and/or condition (excessive facial hair, excessive scarring, sunburn, or other disfigurement) located on the face that, in the study physician's opinion, would confound the evaluation of the rash.
  2. A diagnosis of G6PD deficiency, defined as having a G6PD value below the lower limit of normal.
  3. A diagnosis of anemia, defined as hemoglobin <9.5 g/dL.
  4. Undergoing any current therapy for NSCLC other than Tarceva.
  5. Prior treatment with Iressa, Erbitux, or any experimental HER1/EGFR inhibitor.
  6. Treatment with topical antibiotics, topical steroids, and other topical treatments on the face within 14 days of Day 0 (start of ACZONE/placebo study treatment).
  7. Treatment with any systemic antibiotics within 7 days of Day 0 (start of ACZONE/placebo study treatment).
  8. Treatment with any systemic medication or therapy known to affect anti-inflammatory responses within 30 days prior to Day 0 (start of ACZONE/placebo study treatment). These medications include, but are not limited to, oral corticosteroids, cyclosporine, and methotrexate. Short-term treatment with non-steroidal anti-inflammatory drugs (NSAIDs) before the study for non-rash related conditions is acceptable, provided that exposure is limited to ≤7 days per course. Chronic low-dose aspirin use is also acceptable.
  9. Active participation in an experimental therapy study or received experimental therapy within 30 days of Day 0 (start of ACZONE/placebo study treatment).
  10. A history of hypersensitivity to dapsone, sulfamethoxazole, trimethoprim, parabens, or any component of ACZONE.
  11. A poor medical risk because of other systemic diseases or active uncontrolled infections.
  12. Women who: are lactating; have a positive pregnancy test at Day 0, or; if sexually active and menstruating, are not practicing an adequate method of birth control. Acceptable methods of birth control include intrauterine device (IUD); oral, dermal ("patch"), implanted or injected contraceptives; tubal ligation or hysterectomy (medical documentation required); and/or barrier methods with spermicide. A surgically sterile partner is not considered an adequate method of birth control.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00343187

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United States, Illinois
Northwestern University Robert H. Lurie Comprehensive Cancer Center
Chicago, Illinois, United States, 60611-2941
United States, Pennsylvania
Penn State Milton S. Hershey Medical Center
Hershey, Pennsylvania, United States, 17033
Fox Chase Cancer Center
Philadelphia, Pennsylvania, United States, 19111
Sponsors and Collaborators
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Study Director: Steven Garrett, MS, DDS QLT USA, Inc
Additional Information:
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ClinicalTrials.gov Identifier: NCT00343187    
Other Study ID Numbers: ACZ EGFR 01
First Posted: June 22, 2006    Key Record Dates
Last Update Posted: May 30, 2011
Last Verified: May 2011
Keywords provided by Allergan:
EGFR-1 Rash
Non-small Cell Lung Cancer
subjects treated with Tarceva for non-small cell lung cancer (NSCLC) who subsequently develop a rash suspected to be related to Tarceva
Additional relevant MeSH terms:
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Lung Neoplasms
Carcinoma, Non-Small-Cell Lung
Respiratory Tract Neoplasms
Thoracic Neoplasms
Neoplasms by Site
Lung Diseases
Respiratory Tract Diseases
Carcinoma, Bronchogenic
Bronchial Neoplasms
Anti-Infective Agents
Antiprotozoal Agents
Antiparasitic Agents
Folic Acid Antagonists
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Leprostatic Agents
Anti-Bacterial Agents