Novel Capecitabine Dosing Schedule in Combination With Lapatinib, Based on the Norton-Simon Mathematical Method in Patients With HER2 Overexpressed/Amplified, Trastuzumab (Herceptin) -Refractory, Metastatic Breast Cancer

Conditions

• Breast Cancer

Eligibility Criteria

Sex

ALL

Age

18 Years - N/A

Healthy Volunteers

Not accepted

Interventions

• capecitabine, lapatinib — DRUG
  Capecitabine 2,000mg twice daily for 7 days followed by a 7-day rest in combination with lapatinib 1,250mg orally daily. Cycle length is 28 days (+/- 2 days).Toxicity assessment will occur q2 weeks for the first 4 weeks, then q4 weeks(+/- 2 days). Radiographic response assessment will take place q12 weeks (+/- 1 week). LVEF assessment will be repeated q12 weeks (+/- 1 week).

Study Details

HER2 is a protein that sits on the surface of breast cancer cells in some people. Because you are one of these people, your breast cancer is called "HER2-positive." The HER2 protein is involved in the growth of your breast cancer. Certain drugs can interfere with the ability of the HER2 protein to cause breast cancer growth. Trastuzumab is one of these drugs. You must have already received trastuzumab as treatment for your breast cancer to be considered for this study. Other drugs are being studied in women with HER2-positive breast cancer. Lapatinib (Tykerb™) blocks signals that stimulate HER2-positive breast cancers to grow. The FDA approved lapatinib for use with capecitabine (Xeloda™) in patients who have metastatic breast cancer that has grown or spread after treatment with trastuzumab. Capecitabine was approved by the FDA in 1998 for treating metastatic breast cancer. Capecitabine is a pill that blocks the way cancer cells multiply and grow. Usually, this medicine is taken twice a day for fourteen days. Then, patients do not take the pill for seven days. With this schedule and dose, some patients have had side effects that interfered with their comfort. We have used mathematical models to recommend a new schedule of capecitabine. In animals, 7 days of treatment with capecitabine followed by a 7-day break was safer and more active against breast cancer. The purpose of this study is to find out what effect (both good and bad) capecitabine has on you and your breast cancer when given in this new schedule and combined with lapatinib.

Key Dates

Start date

Jul 31, 2008

Status verified

Jul 2016

Primary completion

Jul 31, 2016

Completion

Jul 31, 2016

Study Design

Enrollment

24 participants (actual)

Allocation

NA

Intervention model

SINGLE_GROUP

Primary purpose

TREATMENT

Arms

• Experimental: 1
  The regimen consists of capecitabine 2,000mg twice daily for 7 days followed by a 7-day rest in combination with lapatinib 1,250mg orally daily.

Primary Outcome Measure

Estimate Efficacy of Capecitabine 7/7 in Combination With Lapatinib in Patients With HER2 Overexpressed/Amplified, Trastuzumab-refractory, Metastatic Breast Cancer as Determined by Overall Response Rate (Complete Response (CR) + Partial Response (PR)) [ Time Frame: 6 months ]

Locations (5)

Find similar trials in Basking Ridge, NJ

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