Lapatinib for Treatment of Ductal Carcinoma In Situ (DCIS) of the Breast
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|ClinicalTrials.gov Identifier: NCT00857714|
Recruitment Status : Terminated (Terminated due to low accrual)
First Posted : March 9, 2009
Results First Posted : July 8, 2015
Last Update Posted : July 8, 2015
|Condition or disease||Intervention/treatment||Phase|
|Ductal Carcinoma in Situ||Drug: lapatinib||Not Applicable|
Ductal carcinoma in situ (DCIS) of the breast is a pre-malignant lesion of the breast, which is associated with a marked increase in the likelihood of developing invasive breast cancer. Since DCIS tends to be associated with microcalcifications, it is detected with an increased frequency in patients being screened with mammographic techniques. The treatment of DCIS is based on a number of parameters; local treatment depends on the size of the lesion, grade and margins. The only systemic treatment currently available is in the form of endocrine therapy; it depends on the expression of estrogen receptor (ER). Randomized trials have shown that the treatment of DCIS with breast conserving therapy and radiation is as effective as simple mastectomy.
The efficacy of tamoxifen in reducing the incidence of further invasive or non-invasive breast cancer has been established. In addition to surgery (with or without radiation), patients with ER positive disease also receive anti-estrogen therapy. Current guidelines do not recommend any additional therapy for ER-negative DCIS.
The rationale for the proposed study is based on the observations that HER2 is expressed at high levels in higher grades of DCIS, which typically lack ER. In addition, an inverse relationship between ER expression and the expression of EGFR has also been demonstrated. Lapatinib is active against both these receptors and may have therapeutic action in ER negative DCIS.
We propose to treat the patients with drug in the interval between biopsy diagnosis and definitive surgery.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||1 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|Primary Purpose:||Basic Science|
|Official Title:||Lapatinib in the Treatment of Ductal Carcinoma in Situ of the Breast|
|Study Start Date :||April 2009|
|Actual Primary Completion Date :||August 2010|
|Actual Study Completion Date :||August 2010|
- Drug: lapatinib
1500 mg lapatinib for 14-21 daysOther Name: Tykerb
- Number of Patients Where Gene Signature Was Obtained. [ Time Frame: Up to 60 days ]Number of patients where gene signature was obtained. This was used to identify gene signature that denotes effect of lapatinib therapy in breast cancer cell lines and to assess effect of lapatinib therapy in patients with ductal carinoma in situ of the breast using the gene signature developed as a surrogate marker.
- Number of Patients With Toxicity Associated With Short Therapy With Lapatinib. [ Time Frame: Up to 60 days ]Number of patients with toxicity associated with short therapy with lapatinib will be reported.
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): NCT00857714
|United States, Indiana|
|Indianapolis, Indiana, United States, 46202|
|Principal Investigator:||Sunil Badve, MD||Indiana University|