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Biomedical subjects

A de Gramont

Publications and source records attributed to A de Gramont.

At least 37 records · Page 2Linked to original sources

High-dose intensity oxaliplatin added to the simplified bimonthly leucovorin and 5-fluorouracil regimen as second-line therapy for metastatic colorectal cancer (FOLFOX 7).

This phase II study examined a regimen (FOLFOX7) of leucovorin (LV), high-dose intensity oxaliplatin, and 5-fluorouracil (5-FU), as second-line therapy for metastatic colorectal cancer. 48 patients were enrolled - 36 refractory and 12 resistant to prior therapy with LV-5-FU. Oxaliplatin (130 mg/m2) was infused with LV (400 mg/m2) over 2 h on day 1, followed by bolus 400 mg/m2 and a 46-h infusion (2400 g/m2) of 5-FU, every 2 weeks. Patients who responded or were stable received eight cycles. Patients were evaluated every 2 months. 20 patients (42%) had partial responses (95% confidence interval (CI): 28-56%), 19 (40%) had stable disease and 9 (19%) progressed. Median progression-free survival (PFS) was 6 months and median survival 16.1 months. Toxic effects of National Cancer Institute-Common Toxicity Criteria (NCI-CTC) grade 3/4 were: peripheral neuropathy 15%, nausea 8%, diarrhoea 11%, neutropenia 9%, thrombocytopenia 11%. Overall, 38% of patients experienced grade 3/4 toxicities, and 64% received 90% or more of the scheduled oxaliplatin dose intensity during the first four cycles. FOLFOX7 was highly active, with good tolerability, in pretreated patients resistant to LV-5-FU [corrected].

Aged↗

Phase II trial of bimonthly leucovorin, 5-fluorouracil and gemcitabine for advanced pancreatic adenocarcinoma (FOLFUGEM).

BACKGROUND: Gemcitabine alone or 5-fluorouracil (5-FU) according to several schedules are used for palliation of metastatic and locally advanced (LA) pancreatic adenocarcinoma. This study was designed to test the efficacy of the leucovorin 5-FU and gemcitabine combination. PATIENTS AND METHODS: This phase II trial combined a simplified bimonthly LV5FU2 with gemcitabine: leucovorin 400 mg/m2 in a two-hour infusion, followed by 5-fluorouracil 400 mg/m2 bolus and 2 or 3 g/m2 continuous infusion over 46 hours; gemcitabine 1 g/m2 was infused over 30 min on day 3 after 5-FU. Treatment was repeated every two weeks. Gemcitabine dose could be increased (250 mg/m2 every two cycles up to 1500 mg/m2) in the absence of NCI-CTC toxicity > 2. RESULTS: Among the 62 patients included in this study, 22 had LA and 40 had metastatic disease. Objective response rate for the 54 patients with measurable disease was 25.9% (95% confidence interval (CI): 14%-37.8%) and 22.6% (95% CI: 12%-33.2%) in the intent-to-treat population: the clinical benefit rate for the 59 assessable patients was 49.2%. Median progression-free survival and median overall survival were 4.8 and 9 months, respectively, with 32.3% of patients alive at 1 year. The most frequent toxicity (grade 3-4) was neutropenia (56.5%) usually asymptomatic (1.1% febrile neutropenia), but requiring decreases of 5-FU and gemcitabine doses. Unexpected complete alopecia occurred in 97% of patients. CONCLUSIONS: Palliative effects, response rate and survival observed in this multicenter study seem to be superior to those obtained with gemcitabine or 5-FU alone, despite a limiting hematological toxicity.

Adenocarcinoma↗

patients with the description of a new scoring system and its validation on 253 other patients.

Using Cox models, we established a new prognostic system based on simple clinical parameters in a training series of 232 patients whose diagnoses were made before 1989. Adverse prognostic factors for survival (P <.01) were age 65 years or older, male gender, albumin level lower than 40 g/L, hemoglobin level lower than 12 g/dL, platelet count less than 150 x 10(9)/L, white blood cell count less than 4 x 10(9)/L, high number of cytopenias, and hepatomegaly. Taking age (age 65 years or older, 1 point; younger than 65 years, 0 points), albumin (less than 40 g/L, 1 point; 40 g/L or more, 0 points), and total number of cytopenias (no cytopenia, 0 points; 1 cytopenia, 1 point; 2 or 3 cytopenias, 2 points) into account, we separated the 232 patients into 3 groups with low (score 0 or 1), intermediate (score 2), or high (score 3 or 4) risk, associated with 5-year survival rates at 87%, 62%, and 25%, respectively (P <.0001). Only the presence of 2 or 3 cytopenias was an independent prognostic factor among patients younger than 65 years (P <.0001). Albumin level lower than 40 g/L and the presence of 1 or more cytopenia defined a prognostic system for patients 65 years and older. Patients at low risk, intermediate risk, and high risk had 5-year survival rates at 92%, 63%, and 27%, respectively (P <.0001). The 3 prognostic systems separated the 167 patients of a test series in groups with significantly different survival rates. The overall scoring system retained a significant prognostic value in 86 additional patients treated between 1990 and 1996. We conclude that the combination of age, albumin level, and blood cell counts might help to select patients with Waldenström macroglobulinemia for treatment and to evaluate therapeutic results.

Adult↗

[Aspirin against cancer].

PURPOSE: That aspirin as an anti-aggregative and anti-inflammatory compound might prevent tumor spread is an old concept that is still not of clinical relevance. To date, aspirin has been shown in several epidemiologic studies to be linked with a reduction of colorectal cancer incidence, as well as the incidence of lung and breast cancer. In this issue, we have summarized the mechanisms that support this hypothesis, and we have analysed the main clinical studies. RESULTS: Only case-control studies and most of the prospective cohort studies showed a reduction of colorectal cancer incidence in regular aspirin users. Nevertheless, the minimum effective doses of aspirin and the duration of therapy remain unclear. To date, only one prospective randomized trial has evaluated the influence of aspirin in the prevention of colorectal cancer. Despite the inclusion of 22,000 subjects and a five-year follow-up, aspirin failed to show any protection. The mechanism of the potential role of aspirin in preventing cancer, primarily supposed to rely on the antiprostaglandin effect, is now under debate. Few studies have evaluated the prevention of other cancers, such as breast or lung cancers, by aspirin. Data remain too sparse to allow any conclusion. CONCLUSION: The role of aspirin in the prevention of colorectal cancer still needs further studies, such as a prospective randomized study, which should be conducted in a high-risk population.

Anti-Inflammatory Agents, Non-Steroidal↗

Factors predicting for efficacy of oxaliplatin in combination with 5-fluorouracil (5-FU)+/-folinic acid (FA) in a compassionate-use cohort of 370 5-FU-resistant advanced colorectal cancer (CRC) patients.

Univariate and multivariate analyses were performed on data from 370 5-fluorouracil (5-FU)-resistant advanced colorectal cancer patients treated with oxaliplatin (Eloxatin)/5-FU+/-folinic acid (FA) to identify prognostic factors for oxaliplatin-based treatment. The response rate was 14.6% (95% confidence interval (CI): 11.0-18.2%), median time to progression was 4.3 months (95% CI: 3.9-4.7), and median overall survival 9.7 months (95% CI: 8.5-10.8). Multivariate analysis indicated < 2 prior chemotherapy regimens, bi-weekly treatment administration schedule (versus tri-weekly) and continuous chronomodulated delivery (CCM) as significantly associated (P < 0.05) with a higher overall response rate. Performance status (PS) < 2, having only one involved organ, biweekly schedule and CCM were associated (P < 0.05) with a longer time to progression. Good PS, one involved organ, low alkaline phosphatase (AP) serum levels, bi-weekly schedule and CCM were significantly correlated with longer overall survival, while confirming the efficacy of oxaliplatin/5-FU+/-FA in this indication.

Adult↗

Evaluation of oxaliplatin dose intensity in bimonthly leucovorin and 48-hour 5-fluorouracil continuous infusion regimens (FOLFOX) in pretreated metastatic colorectal cancer. Oncology Multidisciplinary Research Group (GERCOR).

BACKGROUND: Studies of bimonthly 48-hour regimens of high-dose leucovorin (LV) (FOLinic acid), 5-fluorouracil (5-FU) by continuous infusion combined with OXaliplatin (FOLFOX) in pretreated patients with metastatic colorectal cancer suggest that oxaliplatin dose intensity is an important prognostic factor for response rate and progression-free survival (PFS). To help define the optimal dose schedule for oxaliplatin in pretreated metastatic colorectal cancer, we retrospectively analyzed data from three phase II studies using different FOLFOX regimens (FOLFOX2, 3 and 6). PATIENTS AND METHODS: Data on 126/161 patients were analyzed. FOLFOX2 included oxaliplatin 100 mg/m2; FOLFOX3, 85 mg/m2; and FOLFOX6, 100 mg/m2 (added to a simplified LV-5-FU regimen), all as two-hour infusions. A total of 47 patients received low dose intensity oxaliplatin (LDI: < or = 85 mg/m2/2 weeks) and 79 patients high dose intensity oxaliplatin (HDI: > 85 mg/m2/2 weeks). RESULTS: Objective responses occurred in 31 (39%) HDI patients and 9 (19%) LDI patients (P = 0.03). Median PFS was 28 weeks, with 52% of HDI patients progression free at 6 months, and 26 weeks with 36% of LDI patients progression free at six months (P = 0.02). Increased oxaliplatin dose intensity was not associated with increased neurotoxicity or other toxicities. FOLFOX are among the most effective regimens for treating LV-5-FU-resistant metastatic colorectal cancer. CONCLUSIONS: This study shows that oxaliplatin dose intensification significantly improves response rate and PFS in pretreated metastatic disease without increasing severe toxicity.

Adenocarcinoma↗

Synergistic antitumoral activity of combined UFT, folinic acid and oxaliplatin against human colorectal HT29 cell xenografts in athymic nude mice.

This study was designed to assess the inhibition of tumor growth by oxaliplatin combined with UFT and folinic acid (FA). Growth inhibition was studied in nude mice transplanted with human colorectal HT29 tumor cell xenografts and treated for 28 days with oral UFT (20 mg/kg/day) and FA (4 mg/kg/day), i.p. oxaliplatin (10 mg/kg on day 1) or a combination of oxaliplatin, UFT and FA, or else not treated (controls). Tumor surface area and weight were recorded twice a week, and mice were sacrificed at day 28. Two separate experiments were performed for each group of 25 mice. At day 28, mean tumor weights (g) were 2.89+/-0.22 (controls), 2.03+/-0.14 (oxaliplatin), 2.02+/-0.21 (UFT/FA) and 1.23+/-0.17 (oxaliplatin+UFT/FA). For the three treatment groups, tumor weight decreases were 30.1% (p<0.05), 29.9% (p<0.05) and 57.5% (p<0.001), respectively. Combined treatment (UFT/FA+oxaliplatin) reduced tumor weight by 39% compared to oxaliplatin alone (p<0.05) or UFT/FA (p<0.05). These results demonstrate the synergistic effect of the combination of oxaliplatin, UFT and FA in this HT29 cell xenograft model, and warrant further investigations in patients with metastatic colorectal cancer.

Animals↗

Leucovorin and fluorouracil with or without oxaliplatin as first-line treatment in advanced colorectal cancer.

PURPOSE: In a previous study of treatment for advanced colorectal cancer, the LV5FU2 regimen, comprising leucovorin (LV) plus bolus and infusional fluorouracil (5FU) every 2 weeks, was superior to the standard North Central Cancer Treatment Group/Mayo Clinic 5-day bolus 5FU/LV regimen. This phase III study investigated the effect of combining oxaliplatin with LV5FU2, with progression-free survival as the primary end point. PATIENTS AND METHODS: Four hundred twenty previously untreated patients with measurable disease were randomized to receive a 2-hour infusion of LV (200 mg/m(2)/d) followed by a 5FU bolus (400 mg/m(2)/d) and 22-hour infusion (600 mg/m(2)/d) for 2 consecutive days every 2 weeks, either alone or together with oxaliplatin 85 mg/m(2) as a 2-hour infusion on day 1. RESULTS: Patients allocated to oxaliplatin plus LV5FU2 had significantly longer progression-free survival (median, 9.0 v 6.2 months; P =.0003) and better response rate (50.7% v 22.3%; P =.0001) when compared with the control arm. The improvement in overall survival did not reach significance (median, 16.2 v 14.7 months; P =. 12). LV5FU2 plus oxaliplatin gave higher frequencies of National Cancer Institute common toxicity criteria grade 3/4 neutropenia (41. 7% v 5.3% of patients), grade 3/4 diarrhea (11.9% v 5.3%), and grade 3 neurosensory toxicity (18.2% v 0%), but this did not result in impairment of quality of life (QoL). Survival without disease progression or deterioration in global health status was longer in patients allocated to oxaliplatin treatment (P =.004). CONCLUSION: The LV5FU2-oxaliplatin combination seems beneficial as first-line therapy in advanced colorectal cancer, demonstrating a prolonged progression-free survival with acceptable tolerability and maintenance of QoL.

Adenocarcinoma↗

[Bimonthly 5-fluorouracil in elderly patients with metastatic colorectal cancer. Study of 50 patients].

PURPOSE: Recent advances in the management of colorectal cancer have improved the quality of life and the survival of patients treated with chemotherapy. In order to define the contribution of chemotherapy in elderly patients, we studied the tolerance and the efficacy of first-line chemotherapy in patients with metastatic colorectal cancer. METHODS: Patients aged over 75 years received, as outpatient therapy, a bimonthly 48 h leucovorin and fluorouracil regimen. Evaluation was assessed every six cycles (i.e., three months). RESULTS: Fifty patients were studied: 28 males and 22 females, aged between 75 to 87 years, 37 with colon cancer and 13 with rectal cancer. Among 45 patients capable of being evaluated, the response rate was 44%, with six complete responses (13%) and 14 partial responses (31%). Eighteen patients had stable disease (40%) and seven patients progressive disease (16%). Median progression-free survival was 8.8 months and median survival 16.4 months. Grade 3 to 4 toxicity occurred in 20% of the patients. Performance status improved in 56% of the patients. CONCLUSION: The bimonthly regimen is well tolerated in elderly patients and appears to prolong survival as well in younger patients.

Aged↗

Oxaliplatin added to the simplified bimonthly leucovorin and 5-fluorouracil regimen as second-line therapy for metastatic colorectal cancer (FOLFOX6). GERCOR.

For patients resistant to leucovorin (LV) and 5-fluorouracil (5-FU), the addition of oxaliplatin (85 or 100 mg/m2) to bimonthly LV-5-FU has given a response rate of 20-46%. The highest response rate has been observed with oxaliplatin 100 mg/m2 (FOLFOX2). The present phase II study (FOLFOX6) infused oxaliplatin (100 mg/m2) with LV (400 mg/m2) as a 2-h infusion on day 1, followed by bolus 400 mg/m2 and a 46-h infusion (2.4-3 g/m2) of 5-FU, every 2 weeks. Among the 60 patients treated, 16 (27%) had partial responses (95% confidence interval: 15-38), 27 (45%) had stable disease, 15 (25%) experienced disease progression and 2 (3%) had non-measurable disease. From the start of FOLFOX6, median progression-free survival was 5.3 months and median survival 10.8 months. From the 448 cycles analysed, NCI-CTC grade 3-4 toxicities per patient were: peripheral neuropathy 16%, nausea 7%, diarrhoea 7%, mucositis 5%, neutropenia 24%, thrombocytopenia 2%. Overall 26 (46%) patients experienced grade 3-4 toxicities. Because of toxicity, only 36% of the patients received > or = 90% of the scheduled oxaliplatin dose intensity. FOLFOX6 was active in pretreated patients resistant to LV-5-FU and is being investigated as first-line therapy. We are now investigating FOLFOX7, a regimen with a higher oxaliplatin dose intensity and a lower 5-FU dose.

Adult↗

CPT-11 (irinotecan) addition to bimonthly, high-dose leucovorin and bolus and continuous-infusion 5-fluorouracil (FOLFIRI) for pretreated metastatic colorectal cancer. GERCOR.

CPT-11 (irinotecan) has shown activity in patients with advanced colorectal cancer resistant to leucovorin (LV) and 5-fluorouracil (5-FU). In this study, the simplified bimonthly LV-5-FU regimen was combined with CPT-11 (FOLFIRI) as third-line therapy for patients with advanced colorectal cancer. Continuous infusion of 5-FU was administered with disposable pumps as outpatient therapy. FOLFIRI consisted of CPT-11 180 mg/m2 as a 90-min infusion day 1; LV 400 mg/m2 as a 2-h infusion during CPT-11, immediately followed by 5-FU bolus 400 mg/m2 and 46-h continuous infusion of 2.4-3 g/m2 every 2 weeks. Among the 33 patients treated, 2 had partial responses for an overall response rate of 6%; 20 patients were stabilised (61%) and 11 had disease progression (33%). From the start of FOLFIRI, median progression-free survival was 18 weeks and median survival was 43 weeks. For the 242 cycles analysed, NCI-CTC toxicities grade 3-4 per patient were nausea 15%, diarrhoea 12% and neutropenia 15%. Overall, 10 patients (30%) experienced grade 3-4 toxicity. 7 patients (21%) had grade 2 alopecia. FOLFIRI generated activity and acceptable toxicity, in heavily pretreated patients, with limited diarrhoea, mostly asymptomatic neutropenia and manageable nausea and relatively uncommon alopecia. This regimen is suitable for studies in chemotherapy-naïve patients.

Adult↗

Multicenter phase II study of bimonthly high-dose leucovorin, fluorouracil infusion, and oxaliplatin for metastatic colorectal cancer resistant to the same leucovorin and fluorouracil regimen.

PURPOSE: To evaluate the objective tumor response rates and toxicities of leucovorin (LV) plus fluorouracil (5-FU) cancer regimen combined with oxaliplatin (85 mg/m(2)) every 2 weeks on metastatic colorectal cancer patients with documented proof of progression while on bimonthly LV and 5-FU alone. PATIENTS AND METHODS: One hundred patients were enrolled onto this study and 97 received the study drugs between October 1995 and December 1996. Eighty-nine patients were eligible for per-protocol efficacy analysis with documented proof of progression on one of the following two treatments: LV 500 mg/m(2) and continuous 5-FU infusion 1.5 to 2 g/m(2)/22 hours, days 1 through 2 every 2 weeks (FOLFUHD); or LV 200 mg/m(2), bolus 5-FU 400 mg/m(2), and continuous 5-FU infusion 600 mg/m(2)/22 hours, days 1 through 2 every 2 weeks (LV5FU2). In our study, 40 patients received FOLFUHD + 85 mg/m(2) of oxaliplatin day 1 (FOLFOX3) and 57 patients received LV5FU2 + 85 mg/m(2) of oxaliplatin day 1 (FOLFOX4). RESULTS: Of the 97 patients treated, 20 partial responses were observed (FOLFOX3/4: response rate, 20.6%; 95% confidence interval, 13% to 31.1%; FOLFOX3: response rate,18.4%; FOLFOX4: response rate, 23.5%). For patients treated with FOLFOX3/4, the median response duration for was 7.5 months, and the major toxicities were peripheral neuropathy and neutropenia. The incidence of grade 3 (National Cancer Institute common toxicity criteria) peripheral neuropathy was 20.6%; whereas the overall incidence of grade 3 to 4 neutropenia was 27.8%, 15%, and 36.9% for FOLFOX3/4, FOLFOX3, and FOLFOX4, respectively (P =.02). From the start of treatment, median progression-free survival was 4. 7, 4.6, and 5.1 months for FOLFOX3/4, FOLFOX3, FOLFOX4, respectively, and median overall survival was 10.8, 10.6, and 11.1 months, respectively. CONCLUSION: This phase II study of oxaliplatin at 85 mg/m(2) in combination with bimonthly LV plus 5-FU in patients with colorectal cancer resistant to LV plus 5-FU alone confirms the enhanced antitumor activity of oxaliplatin in combination with 5-FU.

Adenocarcinoma↗

[Contribution of telemedicine applied to digestive cancer].

AIM OF THE STUDY: Telemedicine offers new possibilities for multidisciplinary care of cancer patients, allowing direct communications between different, complementary and geographically distant specialists. Thus, it is possible to form oncology committees in small hospitals where all specialties are not represented. The purpose of this study was to evaluate the medical and economic impact of visioconferences in the therapeutic management of cancer patients without access to oncology centers. MATERIALS: A telemedicine network was created in Paris between the General Surgery and Gastroenterology services of Rothschild Hospital and the services of Oncology at Saint-Antoine Hospital and Radiotherapy at Tenon Hospital. The three hospitals were connected simultaneously (multipoint) by visioconference and thus constituted a pluridisciplinary oncology committee of radiotherapy, chemotherapy and surgery. Eighty seven cases were evaluated in 27 staff conferences. In 48 cases, this consisted of re-evaluating therapeutic decisions made in surgery or gastroenterology, and in 39 cases opinions were requested by surgery (18), gastroenterology (14) or oncology departments (7). RESULTS: In only 34/87 cases therapeutic agreement was reached directly. The 53 other cases (60.9%) were debated. In fact, all 39 requests for opinion in difficult therapeutic decisions resulted in consensus. Among the 48 re-evaluations, disagreement persisted in one case between the surgeon in charge of the patient and the chemotherapist. Importantly, in 13 of 48 cases (27%), the discussion modified the therapeutic protocol initially proposed. The average cost was 118 French Francs per case and per center. Total initial investment was 334,762 French Francs, but the price of some equipment has already dropped from 30 to 60%. CONCLUSION: In our study, the visioconference improved management of cancer patients for a weak working cost.

Digestive System Neoplasms↗

[Adenocarcinoma of the pancreas. General characteristics].

EPIDEMIOLOGY: Pancreatic carcinoma ranks fifth among the leading causes of cancer death in developed countries. Although the incidence of pancreatic cancer is about 10 per 100,000 inhabitants, the five-year overall survival is barely one to 4%. Few risk factors have been identified. Smoking increases the relative risk by 1.5, chronic pancreatitis by 26. Hereditary formes are rare. PATHOLOGY AND MOLECULAR ABNORMALITIES: Adenocarcinomas of the ductal phenotype represents about 90% of the pancreatic tumors. Seventy percent of adenocarcinomas are located in the head. Mutations of K-ras oncogene and p53 anti-oncogene are noted, respectively, in 80 to 90% and 70% of the ductal adenocarcinomas. The mutation of p53 is associated with a poor prognosis. Certain less frequent forms such as mucinous cystadenocarcinomas, or intraductal papillary-mucinous tumors seem to have a better prognosis. However, this is not true for acinar cell carcinomas responsible for various paraneoplastic syndromes. PATTERN OF SPREAD: The disease arises in the ductal epithelium and rapidly spreads to regional lymph nodes and the liver. At diagnosis, nodal involvement is found in 80% of cases. Half of the patients have detectable visceral metastasis with a median survival of three to six months. Among the remaining non metastatic patients, approximately one in 5 has undetected peritonal carcinomatosis. Only 10 to 20% of the patients undergo surgical complete resection with a median survival of 15 to 19 months.

Adenocarcinoma↗

[Adenocarcinoma of the pancreas. Diagnosis and evaluation].

SYMPTOMS: Pain, jaundice, or weight loss are the presenting features of 90% of the cases. Patients with tumors of the body or the tail of the pancreas do not rapidly develop jaundice. Therefore, their diagnosis is delayed and metastasis are more frequently detected at diagnosis. RADIOLOGIC DIAGNOSIS: The diagnosis may be established by ultrasonography, endoscopic ultrasonography and most importantly by CT scan with helicoidal continuous acquisition and contrast injection. However, these methods do not efficiently detect tumors smaller than 2 cm or with only superficial peritoneal involvement. Laparoscopy and angiography are used less and less frequently to evaluate resectability. The diagnostic work-up with CT scanning is able to anticipate resectability in 50 to 90% of the cases. PATHOLOGY: Histopathology must be obtained since 10% of the pancreatic carcinoma are not of the ductal type and not all pancreatic tumors are malignant. When a pathological specimen cannot be obtained during surgery, a cytology specimen may be obtained with a fine needle guided by CT scan. PROGNOSIS: Survival depends on the possibility of a complete resection of the tumor. If complete resection is obtained, the prognostic factors are in decreasing importance: tumor size, lymphatic and vascular involvement, and invasion of peri-pancreatic tissues.

Adenocarcinoma↗

[Adenocarcinoma of the pancreas. Therapeutic strategies].

SURGERY: Surgery whether curative or palliative, is the major modality of treatment. A complete resection is possible in about 20% of patients with a median survival of 12 to 16 months and a 20% five year survival. After complete resection 70 to 80% of patients develop a local recurrence. Biliary and gastro-intestinal bypasses as well as antalgic techniques are useful palliative procedures. ADJUVANT AND NEOADJUVANT TREATMENT: Chemoradiotherapy is used either as adjuvant or neoadjuvant treatment. External beam irradiation techniques are used to deliver 45 to 50 Gy to the pancreas in five to six weeks. Concomitant fluorouracil is administered in bolus injections or better in continuous infusion,, either alone or in association with cisplatinum. Chemoradiotherapy reduces the local relapse rate and slightly, though significantly, increases the median survival. Therefore, after chemoradiotherapy, metastatic spread becomes the major cause of death. PALLIATIVE TREATMENT: For locally advanced diseases, chemoradiotherapy has a true palliative effect with acceptable toxicity. Metastatic disease remains a challenge. Fluorouracil based chemotherapy with or without cisplatinum occasionally obtains effective palliation. Among new agents, only gemcitabine has proven clinical activity associated with low toxicity and is practical to use. THERAPEUTIC STRATEGY: Presently, patients with resectable pancreatic carcinoma should be included in a prospective trial to receive combined modality treatment with adjuvant or neo-adjuvant chemoradiotherapy. The choice of treatment for patients with locally advanced or metastatic disease, should be based on the possibility of assuring a satisfactory quality of life. Present research should progress through controlled clinical trials to study original systemic treatment and combined modalities able to produce a lasting local control.

Adenocarcinoma↗

A review of GERCOD trials of bimonthly leucovorin plus 5-fluorouracil 48-h continuous infusion in advanced colorectal cancer: evolution of a regimen. Groupe d'Etude et de Recherche sur les Cancers de l'Ovaire et Digestifs (GERCOD).

The addition of leucovorin (LV) to 5-fluorouracil (5-FU) in advanced colorectal cancer has shown improved tumour response rates in many trials, but the optimal LV/5-FU regimen has yet to be determined. Seven studies carried out over the last 12 years to evaluate the safety and efficacy of various LV/5-FU regimens are reviewed. The initial bimonthly high-dose LV/5-FU regimen consisted of high-dose LV as a 2-h infusion followed by 5-FU as an intravenous (i.v.) bolus plus a 22-h continuous infusion (CI), repeated for two consecutive days every 2 weeks. A randomised comparison of this bimonthly high-dose LV/5-FU regimen and the NCCTG-Mayo Clinic regimen (LV [20 mg/m2/day] followed by 5-FU bolus [425 mg/m2/day] daily x 5, every 4 weeks) showed that the bimonthly high-dose LV/5-FU regimen was superior to the NCCTG-Mayo Clinic regimen in response rate and progression-free survival, but showed no difference in overall survival. In addition, toxicity was less with the bimonthly high-dose LV/5-FU regimen. These promising results led to a phase II trial of a simplified bimonthly high-dose LV/5-FU regimen consisting of LV (500 mg/m2/day) and a 48-h CI of 5-FU (1.5-2 g/m2/day) which has been administered alone or in combination. In summary, GERCOD-sponsored studies have further demonstrated that high doses of both LV and 5-FU given as a CI can improve response rates still more with acceptable toxicity. Further studies are focused on the effectiveness of combination with oxaliplatin or CPT-11 in metastatic disease and the use of high-dose LV/5-FU regimens for colorectal cancer in the adjuvant setting.

Antidotes↗