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Biomedical subjects

Filippo Montemurro

Publications and source records attributed to Filippo Montemurro.

24 records · Page 2Linked to original sources

Dose-dense vinorelbine and paclitaxel with granulocyte colony-stimulating factor in metastatic breast cancer patients: anti-tumor activity and peripheral blood progenitor cell mobilization capability.

We studied the safety, activity and peripheral blood progenitor cell mobilizing capability of a dose-dense combination of vinorelbine (VNB) and paclitaxel (PTX) as first-line chemotherapy for patients with metastatic breast cancer (MBC). Forty-three MBC patients were submitted to four cycles of VNB 30 mg/m2 and PTX 175 mg/m2 intravenously, every 2 weeks, as the first induction step of a tandem high-dose chemotherapy program. Granulocyte colony-stimulating factor (G-CSF) 5 microg/kg was administered daily from day +5 to +10 in order to accelerate hematopoietic recovery, or 48h after the last VNB-PTX when a leukapheresis was planned (after the third or fourth cycle). A total of 172 cycles were administered. The mean delivered dose-intensity of VNB and PTX was 14.7 and 86 mg/m2/week, respectively (98% of the planned dose-intensity). The main per-patient toxicities were: peripheral neurotoxicity (G1/2 60%, G3 5%), constipation (G1/2 10%), oral mucositis (G1/2 20%), and asthenia (G1/2 35%). Hematological toxicity was unremarkable, except for anemia with hemoglobin (Hb) values < 10 g/dl (28%), and lymphopenia with lymphocyte counts < 1000/mm3 (28%). Two complete (5.1%) and 24 partial (61.5%) responses were observed in 39 assessable patients, for an overall response rate of 66.6% (95% CI 51.6-80.9). A median of one apheretic procedure (range 1-3) was required to achieve the target number of 6 x 10(6)/kg CD34+ cells. The median number of CD34+ harvested per patient was 15 x 10(6)/kg (range 6.4-36.5). Four cycles of dose dense VNB and PTX showed a favorable toxicity profile, a relevant anti-tumor activity and a high peripheral blood progenitor cell mobilizing activity.

Adult↗

Safety and activity of docetaxel and trastuzumab in HER2 overexpressing metastatic breast cancer: a pilot phase II study.

We conducted a pilot phase II trial of trastuzumab administered concurrently with docetaxel in women with HER2-overexpressing advanced breast cancer. Twenty-five women with HER2-positive (3+ by immunohistochemistry = 16, 2+ = 9) metastatic breast cancer received docetaxel (75 mg/m every 3 weeks for 6 cycles) and trastuzumab (4 mg/kg loading dose, 2 mg/kg weekly thereafter). Twenty-three patients (92%) had visceral metastatic involvement. Twenty-three patients had received prior chemotherapy as part of adjuvant (18), metastatic (2), and both (3) treatment. The number of cycles administered was 121 (median 6, range 1-6). Symptomatic cardiotoxicity (GIII) occurred in one patient. The most common grade GIII/IV toxicity was neutropenia (80% of the cycles), although febrile neutropenia did not occur. No other GIII/IV toxicities were observed. Response rate was 70% (1 complete response and 15 partial responses) in 23 evaluable patients. The combination of docetaxel and trastuzumab is well tolerated and has clinically meaningful antitumor activity.

Adult↗

Role of Magnetic Resonance Imaging in the prediction of tumor response in patients with locally advanced breast cancer receiving neoadjuvant chemo-therapy.

PURPOSE: To evaluate if dynamic contrast enhanced magnetic resonance can predict the tumoural response in patients with breast cancer undergoing neoadjuvant chemotherapy. MATERIALS AND METHODS: Twenty-six patients with biopsy-proven locally advanced breast cancer underwent taxane-based neoadjuvant chemotherapy followed by radical surgery. MRI evaluations were carried out at baseline, after two of the four planned cycles of chemotherapy, and before surgical treatment. MR images, obtained with 1.5 T scanner and using dedicated surface multichannel coil (GEMS), were acquired by 3D SPGR sequences on the coronal plane before and after intravenous administration of gadolinium chelate by an automatic injector. The percent reduction of the early contrast uptake between the baseline and the second MRI was then calculated for every lesion and correlated with the outcome of interest (pCR). RESULTS: At baseline, we identified 26 lesions and two patterns of MRI enhancement: homogeneous (group 1, 14 patients) and peripheral ring-like (group 2, 12 patients). At surgery, pathological complete response was observed in 4 patients (2 patients group 1, 2 patients group 2). In group 1, the 2 cases of pCR showed a gs;70% reduction in the early contrast uptake between baseline examination and after two cycles of chemotherapy, whereas values <70% were seen in 12 cases of partial response (p=0.02). In group 2, the 2 cases of pCR showed a gs; 40% reduction in the early contrast uptake whereas all of the 10 cases of partial response had <40% reduction (p=0.02). CONCLUSIONS: In our series, the percent reduction in the early contrast uptake after two cycles of neoadjuvant chemotherapy was predictive of the achievement of a pathological complete response. However, we identified two distinct morphologic patterns associated with different cut-offs in the predictive value of the early contrast uptake reduction between baseline and intermediate examination.

Antineoplastic Combined Chemotherapy Protocols↗