Can HER2 overexpression predict response to pegylated liposomal doxorubicin in metastatic breast cancer patients?
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Publications and source records attributed to P Carlini.
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BACKGROUND: The aim of this study was to characterize the factors associated with chemotherapy-induced amenorrhea (CIA) and to examine whether the phase of the menstrual cycle at chemotherapy start could affect the rate of CIA in premenopausal women with early breast cancer. METHODS: CIA was defined as the cessation of menses for at least 3 months during or after chemotherapy. Menstrual phase was defined as days 1-6, follicular phase as days 7-14, luteal phase as days 15-20 and premenstrual phase as days 21-28. Univariate and multivariate predictors of CIA were examined. RESULTS: Among 111 premenopausal women, univariate analysis showed a higher incidence of CIA in patients treated in the follicular phase rather than in other menstrual cycle phases (67.6% compared with 45.5%; P=0.03). The rate of CIA increased with age: 65.2% and 45.8% in patients aged >42 and </=42 years, respectively (P=0.05). Upon multivariate analysis these differences remained statistically significant and duration of chemotherapy of more than six cycles correlated significantly with the incidence of CIA (P=0.03). CONCLUSIONS: The major implication of this analysis is that the timing of treatment within the menstrual cycle may potentially modulate the onset of CIA. This work and its future confirmation using prospective randomized trials would be useful in predicting the likelihood of CIA and in counseling breast cancer patients, especially those with a good prognosis who benefit less from chemical castration.
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Since epidermal growth factor receptor (EGFR) is involved in tumor proliferation and angiogenesis, and in the mechanisms of resistance to chemo- and hormono-therapy, it represents a unique promising target for anticancer treatment. Gefinitib (Iressa, ZD1839), an inhibitor of the EGFR tyrosine kinase activity able to bind the intracellular domain of the receptor, is at present in clinical development. In preclinical models Gefitinib induced a dose-dependent response rate in tumor xenografts obtained from different human cancer cells lines. The expression of EGFR in the prior tumor did not appear to be a predictive marker for Gefitinib sensitivity. Furthermore, long-term drug use was well tolerated in mice without inducing resistance. However, tumors started to grow again after treatment interruption. Laboratory findings and in vivo data have prompted the evaluation of Gefitinib administered as a single oral daily dose alone or in combination with conventional anticancer treatment.
This retrospective study compared toxicity and activity of vinorelbine according to two schedules with different projected dose intensities in heavily pretreated breast cancer patients. Forty patients were assessable for toxicity and activity in each group; group A received vinorelbine 25 mg/m2 week + lenograstim (150 microg/m2 s.c. on day 3); group B received 25 mg/m2 on days 1 and 8 every 3 weeks. The projected dose intensity was 25 mg/m2/week and 16.6 mg/m2/week, and delivered dose intensity 95.2% and 94.5% in group A and B, respectively. Grade 3-4 afebrile neutropenia was recorded in 25% and 37.5% of patients in A and B, respectively. Overall response rate, 52.5% and 35%; no change, 35% and 40%; progression of disease, 12.5% and 25% in A and B, respectively. Median duration of the response was 10 months for group A and 7 months for B. Median time to progression: 9.0 months and 4.0 months for A and B, respectively. At a median follow-up of 45 months for group A and 19 months for group B, median overall survival was 19 months and 16, respectively. In conclusion the results of the study showed that dose intensity of vinorelbine could have an improvement in terms of time to progression in pretreated advanced breast cancer.
BACKGROUND: 5-Fluorouracil (5-FU), doxorubicin and methotrexate (FAMTX) and cisplatin, epirubicin, leucovorin and 5-FU (PELF) have both been reported to be superior to the combination 5-FU, doxorubicin and mitomycin C (FAM) in advanced gastric carcinoma. On the basis of the presence and dose intensity of the included agents, we hypothesised that PELF would be superior to FAMTX. PATIENTS AND METHODS: Two hundred patients with untreated advanced gastric carcinoma were randomised to receive PELF or FAMTX for a maximum of six cycles or until disease progression. RESULTS: The complete response (CR) rates to PELF and FAMTX were, respectively, 13% [95% confidence intervals (CI) 6% to 20%] and 2% (95% CI 0% to 5%; P = 0.003), and the objective response rates [CR plus partial response (PR) rates] 39% (95% CI 29% to 49%) and 22% (95% CI 13% to 30%; P = 0.009), thus significantly favouring the PELF combination. The survival rates after 12 months (30.8% versus 22.4%) and 24 months (15.7% versus 9.5%) were also higher among patients receiving PELF, but these differences were not statistically significant. The toxicities were qualitatively different but quantitatively similar. Both regimens seem to be feasible provided that careful patient monitoring is assured. CONCLUSIONS: PELF is significantly more active than FAMTX and deserves further research in the adjuvant setting.
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This study aimed to verify whether the advantage in terms of response rate and survival of dacarbazine plus tamoxifen over dacarbazine alone in metastatic malignant melanoma reported in a previous randomized trial was due to a specific interaction of dacarbazine with tamoxifen. A total of 125 patients with locoregional or disseminated malignant melanoma were randomized to receive dacarbazine (250 mg/m(2) days 1-5 every 3 weeks) plus tamoxifen (arm A) or vindesine (3 mg/m(2) every week for 6 weeks, then every 2 weeks) plus tamoxifen (arm B). Of the 125 randomized patients, 57 and 59 were evaluable in arm A and B, respectively. The complete response rates were the same (2% versus 2%) and the complete plus partial response rates were similar (11% versus 14%) in the two groups. There was no significant difference in survival. Neither response or survival correlated with gender. In conclusion, when combined with tamoxifen, dacarbazine does not have a specific effect on response or survival compared with vindesine. The lower response rate to dacarbazine plus tamoxifen (11%) than that reported in the previous trial (28%) might be explained by actual differences in patient and/or participating centre accrual characteristics in the presence of apparently identical eligibility criteria.
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PURPOSE: The combination of paclitaxel and cisplatin is considered the standard regimen for advanced ovarian cancer (AOC). A meta-analysis has shown that the incorporation of anthracyclines into first-line chemotherapy might improve long-term survival by 7-10%. We designed a phase I-II study in patients with AOC using a combination of a fixed dose of cisplatin with paclitaxel and epirubicin both given at escalating doses every 3 weeks. The objectives of this study were to determine both the maximum tolerated dose (MTD) and the antitumor activity of this combination. METHODS: Six different dose levels were planned. The starting doses were cisplatin 75 mg/m2, paclitaxel 140 mg/m2, and epirubicin 50 mg/m2. The doses of paclitaxel were escalated in 20-mg/m2 increments, alternating with 20-mg/m2 increments of epirubicin. Ten patients with AOC entered the phase I study. Three patients each were enrolled at level I and level II and four patients at level III, and at each level, 15 courses were administered. Patients received a median of five courses. RESULTS: Nonhematological toxicity was generally mild, except for grade 3 mucositis in one course at levels II and III, and grade 3 vomiting in one course at levels I and III. Hematological toxicities were grade 3-4 neutropenia in 60%, 47% and 60% of courses at levels I, II and III, respectively, and grade 3 anemia in one course at level III. At level III two of four patients developed a dose-limiting toxicity which was grade 4 neutropenia lasting more than 1 week. CONCLUSIONS: The MTD was reached at level II with cisplatin 75 mg/m2, paclitaxel 160 mg/m2, and epirubicin 50 mg/m2. The phase II part of the study is currently ongoing.
BACKGROUND: There are few clinical data on the sequential use of aromatase inhibitors (AI). This paper focuses on the relevance of clinical benefit CB (CR + PR + SD > or = 6 months) in postmenopausal metastatic breast cancer (MBC) patients treated with the steroidal aromatase inhibitor (SAI) formestane (FOR). who had already received non-steroidal aromatase inhibitor (nSAI): letrozole (LTZ) or anastrozole (ANZ). PATIENTS AND METHODS: Twenty postmenopausal women with MBC were analysed in this retrospective two-centre study with the sequence nSAI-FOR. When receiving ANZ, 1 of 11 achieved a complete response and 9 of 11 a stable disease > or = 6 months, and receiving LTZ 1 of 9 achieved a partial response and 4 of 9 a stable disease > or = 6 months. The analysis of the entire population treated with FOR showed an overall CB of 55% (11 of 20) with a median duration of 15 months and median time to progression (TTP) of 6 months. CONCLUSIONS: Formestane 250 mg once bi-weekly seems to be an attractive alternative third-line hormonal therapy for the treatment of patients with MBC, previously treated with nSAI.
Experimental results are presented on the use of partial least squares (PLS) regression and wavelength selection for the definition of models for visible-near-infrared (Vis-NIR) evaluation of soluble solids content in fruits. First, the relatively easy to deal with-but still not studied in the literature-case of cherry fruit is presented in detail. By using a very simple selection scheme, involving the subsampling of the spectral interval from 600 to 1100 nm with a fixed step, accurate models were found, consistently showing very favorable combinations of SEC and SEP values, in the 0. 50 degrees Brix range for a total variation of about 15 degrees Brix. Apricot fruit represented a more difficult species, and wavelengths to be included in the calibration had to be individually selected for the best results. Nevertheless, parsimonious models could be found, including a total of 38 spectral lines and leading to SEP values at the 0.75 degrees Brix level.
BACKGROUND: An emotional campaign promoting the Di Bella cancer therapy was launched by the Italian media in 1997. Its effects on patients' hopes, feelings, and decision-making processes were largely unknown. We undertook an investigation of this issue. METHODS: Between Feb 25 and March 31, 1998, a ten-item questionnaire was distributed to 1300 unselected adult patients attending 13 cancer centres throughout Italy. Four expert psycho-oncologists reviewed the design and validity of the contents of the questionnaire. Sociodemographic information was also collected. FINDINGS: 1120 (86%) questionnaires were returned and analysed. The main sources of information were television/radio (62%) and newspapers (26%); only 5% cited doctors. The campaign induced optimism in the patients about the efficacy of the method (ineffective 1%, effective 42%, uncertain 57%), and 53% said their hope of cure was increased. However, 48% felt more confused. 24% do not discuss new treatments with their oncologists, and 20% would like to but cannot. When choosing a treatment, the advice of a trusted doctor was judged more important than scientific progress (53% vs 32%) and 63% would try even unproven treatments in the hope of a cure. Replies to many of the questions were influenced by patients' educational attainment and by the degree of communication with their oncologists. INTERPRETATION: Science cannot prevent the harm caused by such campaigns and their psychological consequences, particularly for less educated patients. When making decisions, patients are looking for hope from the treatment and trust in their doctor, both of which depend on effective doctor-patient communications that therefore need to be improved.
BACKGROUND: The conventional treatment of brain metastases not amenable to surgery is most often radiotherapy. Until now, pharmacologic issues related to the blood brain barrier (BBB) prevented a wide evaluation of chemotherapy. The authors previously reported that the combination of cisplatin (P) and etoposide (E) had strikingly high activity in patients with brain metastases from breast carcinoma. The purpose of this study was to assess, in a larger prospective study, the front-line activity of that combination against brain metastases from breast carcinoma (BC), nonsmall cell lung carcinoma (NSCLC), and malignant melanoma (MM) in patients previously untreated with radiotherapy. METHODS: From December 1986 to July 1993, 116 patients received P 100 mg/m2 on Day 1 and E 100 mg/m2 on Days 1, 3, and 5 or on Days 4, 6, and 8 every 3 weeks. An insignificant change in the E schedule using the same dose on a random basis assured the prospective enrollment and the registration of all cases. Six patients were not eligible and three patients were excluded from the analysis because they were lost to follow-up shortly after the date of registration. One-hundred seven patients were considered for analysis. The distribution according to the primary tumor site was BC in 56 patients (52%), NSCLC in 43 (40%), and MM in 8 (8%). The first evaluation of response was performed after two cycles. In cases of no disease progression, chemotherapy was continued to a maximum of six cycles. RESULTS: Among the 56 patients with BC, 7 achieved complete response (CR) (13%), 14 achieved partial response (PR), 12 had no change (NC), 15 had progressive disease (PD), and 8 had insufficient treatment or response was not assessed. The CR plus rate was 38%. Among the 43 patients with NSCLC, 3 achieved CR (7%), 10 achieved PR, 15 had SD, 7 had PD, and 8 had insufficient treatment or response was not assessed. The CR plus PR rate was 30%. None of the eight patients with MM achieved an objective response. The median survival was 31 weeks for patients with BC (range, 0-287), 32 for patients with NSCLC (0-392+), and 17 for patients with MM (2-48). CONCLUSIONS: The combination of P and E is effective for patients with brain metastases from BC and NSCLC. In this study, the response rate was of the same order as that reported for disseminated disease without central nervous system involvement. The survival figures compare favorably with some others reported in the literature for patients given radiotherapy. A randomized study is warranted to compare this chemotherapy followed by radiotherapy with radiotherapy alone for patients with brain metastases from BC or NSCLC not amenable to surgery or radiosurgery.
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The copper, zinc-containing superoxide dismutase electromorphs from chicken erythrocytes have been isolated, their complete amino acid sequence determined and the identity of the protein moieties established. All electromorphs are constituted by a polypeptide chain made of 153 amino acid residues, corresponding to a molecular mass of 15,598 Da. Accurate molecular mass determination by electrospray mass spectrometry of the separated electromorphs unequivocally proved that, in the chicken superoxide dismutase, either one or two cysteine residues/subunit are involved in a mixed disulfide with glutathione. The same post-translational modification has been proven to occur in human superoxide dismutase. A different rate of S-thiolation by endogenous glutathione was also demonstrated to be responsible for charge heterogeneity in cells. Effect of this modification on the catalytic and molecular properties of superoxide dismutases, and possible mechanisms for the S-thiolation process, were also investigated and discussed.
The Italian Oncology Group for Clinical Research (GOIRC) randomized 55 naive patients with advanced pancreatic cancer (APC) between intravenous fluorouracil (5FU) 400 mg/m2, days 1-5 and folinic acid (FA) 200 mg/m2, days 1-5 alone, using Machover's schedule, or with FU, FA, and ifosfamide (IFO) 5 g/m2, day 1 and Mesna. In both arms, treatment was repeated every 28 days. Fifty-one patients were evaluable for response. The overall response rate was 6% (3 out of 51), 1 out of 29 (3%) complete response (CR) in the arm with FU plus FA, and 2 out of 22 (9%) partial responses (PR) in the arm with IFO. The duration of response rate was 39, 55, and 74 weeks, respectively. Median survival time was 21 weeks (range, 4-83 weeks) for 5FU/FA and 16 weeks (range, 3-106 weeks) for the FU/FA/IFO arm. Diarrhea, mucositis, and vomiting occurred in the majority of patients. One patient died due to toxicity. The combination of 5FU plus FA failed to demonstrate therapeutic activity in patients with APC and was associated with moderate to severe toxicity that could lower the quality of life of these patients. Ifosfamide did not potentiate the activity of this combination. Neither of these combinations should be considered for treatment of patients with APC.
To evaluate the efficacy of a three-drug regimen vs. a two-drug CDDP based combination in the treatment of NSCLC, we conducted a three-arm randomized parallel trial comparing (a) CDDP (120 mg/m2 day 1) + etoposide (100 mg/m2 days 1-3) every 3 weeks (PE--arm A); (b) CDDP (120 mg/m2 every 4 weeks) + mitomycin (8 mg/m2 days 1, 29, 71) + vindesine (3 mg/m2 days 1, 8, 15, 22 every 2 weeks) (MVP--arm B); and (c) CDDP (120 mg/m2 day 1) + mitomycin (6 mg/m2 day 1) + ifosfamide (3 g/m2 day 2) every 3 weeks (MIC--arm C). From May 1989 to April 1992, 393 consecutive previously untreated patients with NSCLC Stage IIIB and IV entered the trial; 373 were evaluable for survival and 360 for response. The response rate was significantly better for both the three-drug regimens compared with PE (Table 3). Logistic regression model showed a significantly better response in patients with a good P.S. and in Stage IIIB. Main toxicity consisted of myelosuppression: neutropenia Grade III-IV was recorded in 14% (arm A), 15% (arm B) and 21% (arm C). Thrombocytopenia Grade III-IV was worst in arm C: 10% vs. 5% (arm A) and 3% (arm B). Nephrotoxicity Grade III-IV was more common in arm C: 3.5%. Toxic deaths were 11 (3%: three in arm A, five in arm B, three in arm C). From our data, the three-drug containing regimens, MVP and MIC, appear more active than the two-drug combination PE in treatment of advanced NSCLC.