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BUFFALO, NY--New analysis of familial colorectal cancer data suggests that the disease is not associated with genetic anticipation--the earlier onset of disease in successive generations--said Gloria M. Petersen, PhD, at the Eighth Annual Meeting of the ICG-HNPCC (International Collaborative Group-Hereditary Nonpolyposis Colorectal Cancer).

A month of postoperative radiotherapy preceded by radiosensitizing boluses of fluorouracil (5-FU) slashed the recurrence rate and markedly improved survival in patients with Dukes B and C rectal cancer in a study from the Norwegian Adjuvant Rectal Cancer Project Group, presented at the European Cancer Conference (ECCO-8).

PHILADELPHIA--The addition of trimetrexate (NeuTrexin) to the standard chemotherapeutic regimen of fluorouracil and leucovorin in patients with metastatic colorectal cancer resulted in an improved response rate with no greater toxicity in a study reported at the Oncology Nursing Society meeting.

FORT LAUDERDALE, Fla--The frequency of surveillance after colectomy, particularly CEA testing, was a major topic of discussion after the presentation of the National Comprehensive Cancer Network's (NCCN) preliminary guidelines on colorectal cancer, one of eight such guidelines introduced at the coalition's first annual conference.

Irinotecan {Campo} a new anticancer agent developed by Rhone -Poulenc Rorer Inc, demonstrates significant activity in the treatment of advanced colorectal cancer, according to research presented at the Eighth Annual European Cancer Conference (ECCO-8) in Paris.

Drs. Blackstock, Cox, and Tepper have outlined some salient aspects of the management of pancreatic cancer. I agree with most of their comments, and will address some issues from my own perspective, colored largely by a symposium on cancer of the pancreas held in Newport, Rhode Island, in July 1994. This gathering of a large nucleus of investigators with a major interest in pancreatic cancer provided some additional insights that I will explore in my commentary and that largely complement the points made by Blackstock et al. Among other issues, my remarks will focus on: (1) the use of molecular markers for diagnosis and treatment, (2) preoperative chemoradiation, and (3) some surgical considerations that still generate controversy; ie, the extent of resection.

Blackstock and colleagues present a well-written, comprehensive review of the current state of management of both resectable and unresectable pancreatic carcinoma, as well as ongoing research and future strategies. Unfortunately, in the majority of patients, the disease is locally advanced at diagnosis, with or without regional and distant metastases. Unlike recent advances in screening for both prostate and breast cancer, no reliable and/or cost-effective method for identifying patients at risk for pancreatic cancer is available. Also, there is currently no reliable hematologic marker that can identify patients whose cancers are in the earliest developmental stage. Blackstock et al do emphasize that recent advances in laparoscopic techniques have led to better selection of patients for subsequent exploration and surgical resection. Given the reduction in operative mortality during the last 10 years, survival rates have improved.

The hormone somatostatin may be effective in treating some patients with pancreatic cancer, new research suggests. Studies conducted in mice and in laboratory samples found that pancreatic tumors responded to somatostatin only if the tumor cells had receptors for the hormone.