Anti-HER2 Therapy Beyond Second-Line for HER2-Positive Metastatic Breast Cancer: A Short Review and Recommendations for Several Clinical Scenarios from a Spanish Expert Panel.

Background: The aim of this project was to provide an expert opinion regarding anti-human epidermal growth factor receptor 2 (HER2) therapy beyond second-line treatment of metastatic breast cancer (mBC).

Methods: A group of experts discussed specific issues concerning anti-HER2 therapy in late-line settings in mBC.

Results: Trastuzumab emtansine (T-DM1) or dual HER2 blockade appeared to be good options for HER2-positive mBC after ≥ 2 HER2-targeted therapies.

A phase II study of weekly vinorelbine and trastuzumab in patients with HER2-positive metastatic breast cancer.

Background: Trastuzumab combined with cytotoxic agents presents encouraging results in metastatic breast cancer (MBC), but cardiac toxicity limits some combinations. The synergism shown with trastuzumab and the favorable tolerability profile of vinorelbine provided the rationale for investigating this combination.

Patients And Methods: Patients with HER2-positive MBC who had received <2 lines of chemotherapy for metastatic disease were included.

BRCA1-2 mutations in breast cancer: identification of nine new variants of BRCA1-2 genes in a population from central Western Spain.

We carried out a mutational analysis of BRCA1 and BRCA2 genes in 103 individuals from a population in Western Central Spain and we identified nine new variants: two truncating mutations in BRCA2 [2604C>A (Y792X), 8873del4], three missense mutations in BRCA2 [677A>G (H150R), 958G>A (D224N) and 3398A>G (K1057R], and four silent mutations, two in BRCA1 [1115T>G (R332R) and IVS24+36 C>G], and two in BRCA2 [2583T>A (I785I) and 7854G>A (T2542T)]. In two unrelated families of our population, we identified the BRCA1 1806C>T (Q563X) mutation, which is considered to be a Swedish founder mutation. BRCA1 1806C>T (Q563X) and BRCA2 3036del4 gene mutations were the most frequent in our series.

Biweekly docetaxel and vinorelbine with granulocyte colony-stimulating factor support for patients with anthracycline-resistant metastatic breast cancer.

This phase II trial evaluated the efficacy and toxicity of vinorelbine 25 mg/m2 plus docetaxel 60 mg2/m administered on day 1, every 2 weeks with granulocyte colony-stimulating factor support (G-CSF, 5 microg/kg/day, days 3-7) as primary prophylaxis in patients with histologically confirmed metastatic breast cancer (MBC) and previously treated with anthracyclines in the adjuvant or in the first-line setting. A total of 48 patients received 352 cycles (median 8, range 2-10). All patients were included in the efficacy and safety evaluation on an intent-to-treat analysis.

Her-2/neu gene amplification in familial vs sporadic breast cancer. Impact on the behavior of the disease.

We compared the incidence of Her-2/neu amplification in patients with and without a family history of breast cancer and correlated gene status with clinicobiologic and prognostic features in sporadic and familial cases. Of 108 patients, 28.7% had gene amplification.

Biweekly docetaxel and vinorelbine in anthracycline-resistant metastatic breast cancer: a multicenter phase II study.

The aim of this study was to determine the efficacy and toxicity of a biweekly combination of docetaxel and vinorelbine in patients with metastatic breast cancer (MBC) previously treated with anthracyclines. Eligible patients (n = 49) with MBC received vinorelbine, 25 mg/m2, followed by docetaxel, 60 mg/m2. Cycles were repeated every 14 days for a total of 8 planned cycles.