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Biomedical subjects

G Catalano

Publications and source records attributed to G Catalano.

At least 19 recordsLinked to original sources

A randomised trial of octreotide vs best supportive care only in advanced gastrointestinal cancer patients refractory to chemotherapy.

Octreotide, a somatostatin analogue, has been shown to inhibit the growth of gastrointestinal cancers in vitro and in vivo. To assess the anti-tumour effect of octreotide, we performed a randomised trial comparing octreotide with best supportive care in advanced gastrointestinal cancer patients refractory to chemotherapy. A total of 107 patients with advanced gastrointestinal cancer refractory to chemotherapy were randomised to receive octreotide at the dose of 200 micrograms three times a day for 5 days a week, or the best supportive care only. The primary outcome variable was the survival duration. Response rate was an outcome variable of secondary importance. Fifty-five patients (15 stomach, 16 pancreas, 24 colon-rectum) received octreotide, while 52 (14 stomach, 16 pancreas, 22 colon-rectum) received the best supportive care. Patients treated with octreotide had a significant advantage in duration of survival with a median survival time of 20 weeks vs 11 in the control group (P < 0.0001). This advantage was present also considering the survival data for each tumour group. Twenty-five patients (45%) given octreotide showed stable disease vs only eight (15%) in the control group (P < 0.001). In conclusion, octreotide therapy seems to confer a survival benefit in advanced gastrointestinal cancer patients refractory to chemotherapy. Additional studies will be needed to confirm these results and to clarify other questions about dose and schedule of octreotide.

Adult

Escalating dose of tegafur combined with oral etoposide in metastatic gastric carcinoma.

Fifteen patients with advanced gastric cancer received orally etoposide 100 mg daily for 14 days and escalating doses of tegafur. The starting dose was 400 mg daily. The maximum tolerated dose of tegafur was identified at 850 mg daily. Unacceptable toxicity was seen at 1000 mg, and consisted of diarrhea, stomatitis and leukopenia. Two partial responses were seen at 800 mg daily. In conclusion, our data show that etoposide and tegafur can be safely administered in combination by the oral route.

Aged

Neuroprotective effect of reduced glutathione on cisplatin-based chemotherapy in advanced gastric cancer: a randomized double-blind placebo-controlled trial.

PURPOSE: We performed a randomized double-blind placebo-controlled trial to assess the efficacy of glutathione (GSH) in the prevention of cisplatin (CDDP)-induced neurotoxicity. PATIENTS AND METHODS: Fifty patients with advanced gastric cancer treated with a weekly CDDP-based regimen were included in this study. In patients randomized to receive GSH, GSH was given at a dose of 1.5 g/m2 in 100 mL of normal saline solution over a 15-minute period immediately before CDDP administration, and at a dose of 600 mg by intramuscular injection on days 2 to 5. Normal saline solution was administered to placebo-randomized patients. Clinical neurologic evaluation and electrophysiologic investigations have been performed at baseline and after 9 (CDDP dose, 360 mg/m2) and 15 (CDDP dose, 600 mg/m2) weeks of treatment. RESULTS: At the 9th week, no patients showed clinically evident neuropathy in the GSH arm, whereas 16 patients in the placebo arm did. After the 15th week, four of 24 assessable patients in the GSH arm suffered from neurotoxicity versus 16 of 18 in the placebo arm (P = .0001). In confirmation of this neuroprotective effect, the neurophisiologic investigations, based on the evaluation of the median, ulnar, and sural sensory nerve conduction, showed a statistically significant reduction of these values in the placebo arm but not in the GSH arm, above all considering potential amplitude. In this trial, GSH also reduced hemotransfusion requirements (32 v 62 hemotransfusions) and treatment delay (55 v 94 weeks). The response rate was 76% (20% complete response) in the GSH group and 52% (12% complete response) in the placebo arm, confirming preliminary reports about the lack of reduction in activity of cytotoxic drugs induced by GSH. CONCLUSION: This study provides evidence that GSH is a promising and effective new drug for the prevention of CDDP-induced neuropathy, and that it does not reduce the clinical activity of chemotherapeutic drugs.

Aged

Factitious disorder presenting as bacteremia. Case report and literature review.

A factitious disorder is typically a chronic illness that can be frustrating for the clinical team because it often eludes early diagnosis. Case reports in the literature show that patients can simulate almost any illness or disease state with some resorting to injecting themselves with contaminated substances to produce infection. A case is reported of a patient with self-induced bacteremia who presented with multiple episodes of polymicrobial bloodstream infections. The various types of factitious disorders and a review of treatment options are discussed. The current criteria for factitious disorders in the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) 4th edition are reviewed.

Adult

A pilot clinical trial of surgical adjuvant treatment with high-dose 6S-leucovorin/5-fluorouracil and radiation therapy for high-risk rectal carcinoma.

AIMS AND BACKGROUND: The study was performed to evaluate the feasibility of combining leucovorin (LV) with 5-fluorouracil (5FU) and radiation therapy as adjuvant treatment for high-risk rectal carcinoma. METHODS: Twenty-five patients with histologically proven adenocarcinoma of the rectum, at high-risk of recurrence after potentially curative resection (T3 NO, T and N1-2; MO), received 5FU (370 mg/m2) and 6S-LV (100 mg/m2) on days 1-5, 4 and 8 weeks after surgery. On treatment day 64, radiotherapy on the pelvis (50 Gy) was initiated. Finally, three further courses of 5FU/LV were given at intervals of 4 weeks beginning 28 days after the completion of radiotherapy. RESULTS: The treatment was generally well tolerated. We observed only 2 cases of grade III toxicity (diarrhea) during the third cycle of chemotherapy. No severe complications were recorded following the use of radiotherapy. The mean overall 5FU dose intensity was 92%. After a median follow-up of 24 months, 4 patients had relapsed (liver, lung, and pelvis, 2 cases). CONCLUSIONS: The association of LV to 5FU and radiation therapy seems to be feasible, with acceptable toxicity. The advantage of this combination, in terms of recurrence rate and survival with respect to 5FU/radiotherapy alone, will have to be evaluated in randomized trials.

Adult

Control of chemotherapy-induced diarrhoea with octreotide in patients receiving 5-fluorouracil.

Chemotherapy treatment with combination of 5-fluorouracil and leucovorin or interferon alpha determined an incidence of severe diarrhoea of 10 and 20%, respectively. Up to date no treatment for this condition has been defined. 21 patients affected by advanced colorectal cancer and 6 patients affected by advanced pancreatic cancer received octreotide as treatment for severe diarrhoea following chemotherapy with 5-fluorouracil/leucovorin (Machover's regimen) or 5-fluorouracil/interferon (Wadler's regimen) combination. Octreotide was administered by subcutaneous injection of 50 micrograms twice daily on the first day and 100 micrograms twice daily on the second and third day. 26 patients had total cessation of diarrhoea: 4 patients within the first day, 6 within the second day and 16 within the third day. 1 patient had no change and after the last administration of octreotide he was treated with loperamide and intravenous hydration. Side effects have been mild. In summary octreotide seems to be an effective agent in the management of chemotherapy related diarrhoea.

Aged

Salvage chemotherapy in colorectal cancer patients with good performance status and young age after failure of 5-fluorouracil/leucovorin combination.

Forty-one patients with metastatic colorectal cancer were treated every four weeks with methotrexate 25 mg/m2 i.v. days 1, 8, 15; vincristine 1 mg/m2 i.v. day 1; lomustine 100 mg/m2 p.o. day 1. Inclusion criteria were: failure of previous 5-fluorouracil/leucovorin treatment; performance status (ECOG) 0-2; age less than 60 years; presence of symptoms; absence of concomitant diseases. Metastatic sites were: liver 30, lung 4, abdominal/pelvic mass 7. Three patients achieved partial responses (2 liver, 1 lung metastases); 4 showed stable disease and 34 progressed on therapy. The median survival of patients with partial response, stable disease and progression was comparable (24, 21, 22 weeks respectively). The most common toxicity was hematologic (thrombocytopenia and leukopenia). Other side effects included nausea and vomiting, stomatitis and diarrhea. Symptoms were not affected by treatment. We conclude that salvage chemotherapy is not recommended in colorectal cancer after 5-fluorouracil/leucovorin treatment even in patients with generally considered favorable characteristics for response to chemotherapy.

Adenocarcinoma

Treatment of elderly advanced gastric cancer patients with 5-fluorouracil and leucovorin combination.

In September 1987 a phase II study was begun to verify if elderly symptomatic patients affected by advanced gastric cancer could benefit from a combination of 5-fluorouracil (5FU) and leucovorin (LV). We employed Machover's regimen: 5FU 370 mg/m2 i.v. infusion daily for 5 days; LV 200 mg/m2 i.v. bolus daily for 5 days; cycles were repeated every 3 weeks. 23 patients entered the study and 22 were evaluable for response and toxicity. We obtained only one partial response; 9 had stable disease and 12 progressed on therapy. The median duration of survival was 6 months. Symptoms were not affected by treatment. These data reflect the absence of significant improvement in the quality of life, which was further lessened by the presence of treatment side effects. Because of this we think that this regimen cannot be recommended for the treatment of elderly advanced gastric cancer patients.

Adenocarcinoma

Double biochemical modulation of 5-fluorouracil by leucovorin and cyclic low dose interferon alpha 2b in advanced colorectal cancer patients.

Because of the different sites and mechanisms of biochemical interaction among 5-fluorouracil (5-FU), leucovorin (LV) and interferon (IFN), we hypothesized that the concomitant use of IFN could increase the activity of the 5-FU/LV combination in colorectal cancer patients. Forty-five patients were included in the study and all were evaluable for response and toxicity. They were treated with 5-FU 370 mg/sqm i.v. d 2-6; LV 200 mg/sqm i.v. d 2-6; IFN alpha 2b 3 million U im d 1-7 every 21 days. Six patients achieved complete responses, 17 partial responses, 14 had stable disease and 8 progressed on therapy for an overall response rate of 51%. Median survival has not been reached. At a median follow-up of 14 months 33 of 45 patients remain alive. Nine patients experienced toxicity grade 3 (6 diarrhea and 3 stomatitis). Our results seem to suggest that IFN could increase 5-FU/LV activity and that this combination is well tolerated.

Adult

Experience with intrapleural natural beta interferon in the treatment of malignant pleural effusions.

Malignant pleural effusion is a common complication of cancer. Intrapleural beta interferon has been recently tested, and responses were obtained in about 1/3 of the patients without considerable side effects. We treated 22 patients with recurrent symptomatic malignant pleural effusions with intrapleural beta interferon at increasing doses (5-15 million units) for a maximum of three courses and obtained only two responses. In our opinion, this schedule cannot be recommended for routine use.

Aged

5-Fluorouracil dose intensity increase in 5-fluorouracil and leucovorin combination: results of a phase II study.

It was our intention to verify if in the combination of 5-fluorouracil and leucovorin, the fluoropyrimidine dose intensity is an important determinant of response as noted by Hryniuk when 5-fluorouracil was given alone. By employing the Machover regimen but with cycles repeated every three weeks, a 5-fluorouracil projected dose intensity of 616 mg/m2/wk was obtained. It approximates the maximum tolerated dose for this drug when used alone by i.v. bolus. 50 patients entered this study and 48 were evaluable for response and toxicity. The overall response rate was 29% (five complete responses and nine partial responses). The dose limiting toxicity was gastrointestinal rather than myelosuppression. 5-fluorouracil dose reduction was needed in seven patients. The mean delivered dose intensity of 5-fluorouracil was 610 mg/m2/wk (582 mg/m2/wk in patients in whom 5-fluorouracil was reduced for toxicity and 616 mg/m2/wk in the others). Our results do not seem to show any advantage in the maximization of 5-fluorouracil dose intensity. Furthermore, in an analysis of data from the literature we did not find any difference in response rate in relation to dose intensity in the 5-fluorouracil/leucovorin combination.

Antineoplastic Combined Chemotherapy Protocols

Gastric metastases from breast cancer: a case report.

We describe a case of a 50 year old woman with a secondary involvement of the stomach from breast carcinoma. She complained of nausea, vomiting and epigastric pain resistant to gastroprotective drugs. Initially symptoms were attributed to the side effects of chemotherapeutic agents. Correct diagnosis led to effective treatment of gastrointestinal symptoms with consequent improvement in her quality of life.

Breast Neoplasms

[Biological tumor markers].

The classification of tumor markers can at present be only provisional since in this field new acquisitions are reported daily. Nevertheless, during the last few years, a number of monographs and chapters in oncology texts have become available for students and physicians in which certain parameters (sensitivity, specificity, predictive value of individual markers) are illustrated, thus allowing for a more accurate evaluation of their diagnostic efficacy and offering indications as to which of these markers are most useful in relation to the site of the tumor. Although tumor markers are present throughout the organism, the above review is limited to those found in blood. Clinical results obtained to far have already lead to the conclusion that tumor markers are useful above all for the diagnostic and therapeutic follow-up of patients rather than for the diagnosis of tumors. The present tendency is for the association of several markers since a higher percentage of positive results is achieved both for diagnostic purposes and for the detection of residual foci after apparently successful treatments and for the precocious detection of recurrences, as well as for the evaluation of the efficacy of ongoing therapies.

Adult