Biomedical subjects

Cristina Falci

Publications and source records attributed to Cristina Falci.

4 recordsLinked to original sources

PubMed2006

Gemcitabine in advanced biliary tract cancers.

The annual incidence of hepatobiliary cancer has been steadily increasing in the USA from 15,000 in 1993 to 22,200 in 2000. Despite this increase, it still continues to be a rare neoplasm. Surgical resection is the treatment of choice, but a high percentage of patients are unsuitable for resection. These patients have a very poor prognosis because of the lack of efficacious therapy options. Thus, overall survival in these patients ranges from 3 to 12 months, depending on the extent of disease and its site of origin. For some time, mitomycin C, doxorubicin and 5-fluorouracil have been considered among the most active chemotherapeutic agents, with a response rate ranging from 10 to 20%. More recently, gemcitabine has become the reference agent for these neoplasias because of the histologically common origin of biliary cancer and exocrine pancreatic cancer. However, its role has yet to be well-defined. Here we examine clinical trials designed for locally advanced and metastatic biliary tract cancer and review the existing data supporting palliative therapy with gemcitabine alone or in association with other drugs.

Antimetabolites, Antineoplastic↗

PubMedDate not supplied

[Questionable methods in cancer therapy].

Although alternative and complementary therapies are a well known, spread reality, and many alternative cancer cure were generally found ineffective in clinical trials, oncologists don't care of them. While some therapies, such as spiritual healing and relaxation, are low risk if they don't delay effective conventional methods, herbal remedies showed potential adverse reactions. Oncologists should be aware of these products and question patients on their use of them.

Complementary Therapies↗

PubMedDate not supplied

Rectal cancer neoadjuvant treatment in elderly patients.

BACKGROUND: The aim of the study was to evaluate the differences in terms of toxicity and feasibility of neoadjuvant 5-fluorouracil (5FU) continuous infusion (c.i.) or bolus in combination with pelvic radiotherapy (RT) in locally advanced rectal cancer "fit" or "vulnerable" elderly patients. A secondary endpoint was to identify any specific comorbidity that affected either effectiveness or morbidity of treatment. PATIENTS AND METHODS: From June 2000 to June 2005, 36 patients over 70 years of age out of a total of 88 consecutive elderly cases were retrospectively examined. Variables considered were age, gender, modality of 5FU administration and comorbidities (evaluated according to Cumulative Illness Rating Scale-Geriatric, CIRS-G). RESULTS: Median age was 74 years (range, 70-82) years and the male:female ratio, 22:14. Fourteen % of the patients healthy and 25% with slight comorbidities were considered "fit" and 61% "vulnerable". All the patients received the full course of RT. The mean number of chemotherapy weeks was 5.34 (range, 2-6); "vulnerable" patients did not experience higher toxicity compared to "fit" patients (p = 0.69). Eighty-nine % of the patients were operated without relevant postoperative complications. Thirteen out of 20 "vulnerable" and 10 out of 12 "fit" patients had a pathological downstaging of disease (p = 0.24). CONCLUSION: Selected elderly "vulnerable" patients with rectal cancer can receive the same neoadjuvant 5FU-based chemoradiotherapy (either bolus or c.i.) and undergo surgery as well as "fit" elderly patients, since tolerability and response rate seem to be similar in both categories of patients.

Aged↗

PubMedDate not supplied

Recent progress in target therapy in colorectal cancer.

Monoclonal antibodies are a new class of agents targeting at specific receptors on cancer cells. In addition to having direct cellular effects, antibodies can cany substances, such as radioactive isotopes, toxins and antineoplastic agents, to the targeted cells. Two of them, cetuximab (Erbitux) and bevacizumab (Avastin), seem to have acquired a significant role in the management of patients with radically resected and advanced colorectal carcinoma. Cetuximab plus irinotecan has been approved as second-line therapy in irinotecan-resistant colorectal cancer patients; bevacizumab plus 5FU/LV has resulted in higher response and longer survival than 5FU/LV alone in first line metastatic colorectal cancer; its combination with oxaliplatin has recently doubled results. The superior therapeutic efficacy of these molecular targeting agents over traditional chemotherapy has been shown by the survival benefit achieved by patients with advanced or recurrent cancers. Although the precise molecular mechanism by which these agents produce or enhance an antitumour effect, alone or in combination with anticancer drugs, is unknown, the specific inhibition of target genes critically involved in tumour progression and metastasis is clear. Further studies to determine which patient groups and anticancer drugs are more appropriate for combination therapy with these agents are needed. All the most important data obtained through recent studies are discussed, emphasizing their mechanisms of action, safety profiles and clinical applications.

Antibodies, Monoclonal↗