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Biomedical subjects

Lisa Goldstein

Publications and source records attributed to Lisa Goldstein.

5 recordsLinked to original sources

Phase I/II study of trastuzumab, paclitaxel, cisplatin and radiation for locally advanced, HER2 overexpressing, esophageal adenocarcinoma.

PURPOSE: To determine the overall survival for patients with locally advanced, HER2 overexpressing, esophageal adenocarcinoma receiving trastuzumab, paclitaxel, cisplatin, and radiation on a Phase I-II study. METHODS AND MATERIALS: Patients with adenocarcinoma of the esophagus without distant organ metastases and 2+/3+ HER2 overexpression by immunohistochemistry (IHC) were eligible. All patients received cisplatin 25 mg/m2 and paclitaxel 50 mg/m2 weekly for 6 weeks with radiation therapy (RT) 50.4 Gy. Patients received trastuzumab at dose levels of 1, 1.5, or 2 mg/kg weekly for 5 weeks after an initial bolus of 2, 3, or 4 mg/kg. RESULTS: Nineteen patients were entered: 7 (37%) had celiac adenopathy, and 7 (37%) had retroperitoneal, portal adenopathy, or scalene adenopathy. Fourteen of 19 patients (74%) had either 3+ HER2 expression by immunohistochemistry, or an increase in HER2 gene copy number by HER2 gene amplification or high polysomy by fluorescence in situ hybridization. The median survival of all patients was 24 months and the 2-year survival was 50%. CONCLUSIONS: Assessment of the effect of trastuzumab in the treatment of patients with esophageal adenocarcinoma overexpressing HER2 is limited by the small number of patients in this study. Overall survival, however, was similar to prior studies without an increase in toxicity. Evaluation of HER2 status should be performed in future trials for patients with adenocarcinoma of the esophagus that investigate therapies targeting the HER family.

Adenocarcinoma↗

Trastuzumab, paclitaxel, cisplatin, and radiation for adenocarcinoma of the esophagus: a phase I study.

PURPOSE: To conduct a phase I study incorporating trastuzumab with paclitaxel, cisplatin, and radiation for adenocarcinoma of the esophagus. METHODS AND MATERIALS: Patients with adenocarcinoma of the esophagus without distant organ metastases were eligible. All patients received cisplatin 25 mg/m2 and paclitaxel 50 mg/m2 weekly for 6 weeks with radiation 50.4 Gy. HER-2/neu-positive patients (2+/3+ by immunohistochemistry) received weekly trastuzumab at dose levels of 1, 1.5, or 2 mg/kg weekly for 5 weeks after an initial bolus of 2, 3, or 4 mg/kg, respectively. HER-2/neu-negative patients received the same chemoradiation without trastuzumab as a control for toxicity. Dose-limiting toxicities were defined as grade 3 esophageal, cardiac, or pulmonary toxicity. RESULTS: Twelve of 36 screened patients (33%) overexpressed HER-2/neu by immunohistochemistry (seven 3+ and five 2+). Eight of 12 patients with HER-2/neu overexpression by IHC had an increase in the number of HER-2/neu genes, six from amplification of the HER-2/ neu gene and two were hypderdiploid for chromosome 17. Thirty patients were enrolled (12 HER-2/neu-positive and 18 HER-2/neu-negative controls). No increase in toxicity was seen with the addition of trastuzumab. One of 12 patients in the trastuzumab arm and 8 of 17 in the control arm had grade 3 esophagitis (p < or = .026). Mean left ventricular ejection fraction for the trastuzumab group was 57% before treatment and 56% after treatment. CONCLUSION: HER-2/neu is overexpressed in approximately one-third of esophageal adenocarcinomas. Trastuzumab can be added at full dose to cisplatin, paclitaxel, and radiation. Future studies of trastuzumab in esophageal adenocarcinoma are indicated.

Adenocarcinoma↗

Herceptin and gemcitabine for metastatic pancreatic cancers that overexpress HER-2/neu.

PURPOSE: To determine the response rate and toxicities of Herceptin and gemcitabine for patients with metastatic pancreatic adenocarcinomas that overexpress HER-2/neu. METHODS AND MATERIALS: Patients with metastatic pancreatic cancer with 2+/3 + HER-2/neu expression by immunohistochemistry were eligible. Patients received gemcitabine, 1 g/m2/week, for 7 of 8 weeks followed by 3 of every 4 weeks, and Herceptin, 4 mg/kg loading dose, followed by 2 mg/kg/week. RESULTS: Screening logs demonstrated the rate of HER-2/neu overexpression was 16%. Thirty-four patients were enrolled. Thirty patients (88%) had pancreatic cancers with 2+ overexpression and 4 patients (12%) had 3+ overexpression. Toxicity was similar to gemcitabine alone. Confirmed partial responses were observed in 2 of 32 patients (6%). Thirteen of 32 patients (41%) had either a partial response or a >50% reduction in CA 19-9. The median survival for all 34 patients was 7 months, and the 1-year survival was 19%. CONCLUSION: The response rate of Herceptin and gemcitabine is similar to gemcitabine alone. The 7-month median survival in patients with metastatic pancreatic cancer suggests there may be a modest benefit for some patients. Infrequent HER-2/neu overexpression limits the role of targeting the HER-2/neu gene and prevents definitive conclusions on the addition of Herceptin to gemcibine for patients with pancreatic cancer.

Antibodies, Monoclonal↗