Oral granisetron, administered as a single 2-mg dose, provided equivalent total antiemetic control when compared with i.v. ondansetron (32 mg) in patients who received highly emetogenic, cisplatin-based chemotherapy.
Twenty-two patients with recurrent small-cell lung cancer (SCLC) were treated with single-agent etoposide 50 mg/m2/d by mouth for 21 consecutive days. Eleven patients had received previous chemotherapy with cyclophosphamide, doxorubicin, and vincristine (CAV) or etoposide (CAE) or both (CAVE). Four of the latter patients also received salvage treatment with cisplatin and etoposide (EP). Nine patients had been treated with EP as induction therapy, while two patients had received high-dose cyclophosphamide, etoposide and cisplatin (HDCEP). Altogether, 18 patients had received previous intravenous etoposide. The median time off chemotherapy was 4.5 months (range, 1 to 28.9 months). Ten patients (45.5%; 95% confidence interval [CI], 27% to 65%) achieved a complete or partial response. Responses were most common in patients who had responded to previous chemotherapy and who had not received any treatment in the 90 days before initiation of oral etoposide. Median response duration was 4 months (range, 1.5 to 9.5 months) and median survival was 3.5+ months (range, 1.0 to 15+ months). Leukocyte and platelet nadirs were 1,800/microL and 160,000/microL, respectively, during cycle 1 of treatment and occurred between days 21 and 28. Overall, total leukocyte count decreased to less than 1,000/microL during 10 of 56 cycles (18%). Five patients required six hospitalizations for neutropenia and fever. There were two toxic deaths due to sepsis. Platelet counts less than 50,000/microL occurred in 14 cycles (25%). Alopecia developed in all patients; gastrointestinal toxicity was uncommon. This schedule of etoposide administration warrants further study in combination with other active agents in previously untreated patients with SCLC.
A number of cellular signaling systems are called into play by interaction of the T lymphocyte antigen receptor/CD3 complex with its cognate antigen. Well-described signaling systems include phosphoinositide turnover, tyrosine phosphorylation, protein kinase C activation, and increased cytosolic calcium. We have explored the possibility that another recently described signaling system, activation of phospholipase D, may be operative. Data presented here demonstrate that stimulation of Jurkat T cells with anti-CD3 antibodies or phorbol esters resulted in activation of phospholipase D, as
Twenty‐eight patients with locally advanced, unresectable non‐small cell lung cancer (NSCLC) received neoadjuvant chemotherapy with cisplatin (120 mg/m2 on days 1 and 29) and vinblastine (4 mg/m2 weekly for 6 weeks). At the completion of induction chemotherapy, all patients were assessed for resectability. Those patients judged to be resectable underwent thoracotomy. All remaining patients received thoracic radiation therapy (5500 cGy) followed by additional chemotherapy in those patients responding to neoadjuvant treatment. There were 15 partial responses to neoadjuvant chemotherapy for an overall response rate of 54% (95% confidence interval, 36% to 71%). Only five partially responding patients (18%) were thought to have had sufficient tumor regression to allow for a potentially curative resection. However, a complete resection was done in only two patients. Overall median survival was 12 months (range, 4 to 72 months) with 1‐year, 2‐year, and 3‐year survival rates of 54%, 39%, and 11%, respectively. The primary toxicity associated with neoadjuvant chemotherapy was moderate to severe (Eastern Cooperative Oncology Group Grade 3 or 4) nausea and emesis in 25% of patients. Hematologic toxicity was relatively modest; only one patient had Grade 4 leukopenia (< 1000/μl). Fever and neutropenia were uncommon, and there were no documented septic episodes or treatment‐related deaths. Compared with historic controls treated with radiation therapy alone, cisplatin‐based neoadjuvant chemotherapy appeared to improve the median and long‐term survival of Stage III NSCLC patients modestly.
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