Search

Objective: Bevacizumab maintenance following platinum-based chemotherapy is an effective treatment for epithelial ovarian cancer (EOC), both in primary and recurrent disease. Our aim was to identify criteria to select elderly patients who can safely benefit from bevacizumab addition. Methods: This is a case-control study on patients with primary or recurrent EOC who received platinum-based chemotherapy plus bevacizumab, between January 2015 and December 2016. Patient characteristics, treatment details and adverse events were reviewed and analyzed in 2 settings: younger (<65 years, group 1) and elderly (≥65 years, group 2). A binary logistic model was applied to correlate clinical variables and severe (grade ≥3) toxicity risk. Results: Overall, 283 patients with EOC were included, with 72 (25.4%) older patients compared with 211 (74.6%) younger women. Bevacizumab had been administered to 234 patients (82.7%) as first-line treatment and in 49 (17.3%) with recurrent disease. At diagnosis, elderly patients presented with at least one comorbidity and were taking at least 1 medication in 84.7% and 80.6% of the cases respectively, compared with correspondingly 47.4% and 37.4% in group 1 (p<0.001). Nonetheless, the occurrence of serious (grade ≥3) adverse events did not increase among the older group. Creatinine serum levels >1.1 g/dL, estimated glomerular filtration rate (eGFR) =60 mL/min, ≥3 comorbidities were independently associated with a higher severe toxicity. Conclusions: Elderly patients with EOC can safely be treated with bevacizumab; factors other than age, as higher creatinine serum levels, eGFR and number of comorbidities should be considered to better estimate bevacizumab-related toxicity risk. [ABSTRACT FROM AUTHOR]

Introduction To identify a subset of cervical cancer (CC) patients administered chemoradiation (CT/RT) plus radical surgery (RS), who can be spared lymphadenectomy, and complications. Patients and methods 430 Stage IB2-IIB patients without LN involvement at imaging were accrued (March 1996–December 2015) at Gynecologic Oncology Unit of the Catholic University of Rome/Campobasso. CT/RT consisted of pelvic irradiation plus cisplatin based chemotherapy. Objective response was evaluated according to RECIST criteria; radical hysterectomy and pelvic ± aortic lymphadenectomy was attempted in patients achieving response or stable disease. Surgical morbidity was classified according to the Chassagne grading system. Results 421 cases underwent RS; metastatic pelvic and aortic LNs were documented in 10.7%, and 8.8% of cases, respectively. In patients without residual tumor in the cervix, there was only 1 case (0.53%) with positive pelvic LNs, and 1 case (2.3%) with metastatic aortic LNs. Analysis of patients according to pre- and post-CT/RT imaging was able to select cases without any metastatic LNs: in patients with negative pelvic LNs at pre- and post-CT/RT imaging, none of cases without residual disease in the cervix had metastatic pelvic or aortic LNs. Of 149 early complications, 76 (51.0%) were lymphovascular. The most frequent late complications were lymphovascular (N = 25/61, 41.0%). Conclusion Lymphadenectomy could be avoided in stage IB2-IIB CC patients undergoing preoperative CT/RT, when a careful evaluation of pre- and post-CT/RT imaging and histological assessment of no residual disease in the cervix is made. This approach may avoid lymphadenectomy in 40% of patients with a favourable impact on lymphovascular morbidity. [ABSTRACT FROM AUTHOR]

Background: Trabectedin (T) plus pegylated liposomal doxorubicin (PLD) is approved for treatment of platinum-sensitive recurrent ovarian cancer (ROC). Despite the recommendations and guidelines, variations in managing T/PLD administration in routine clinical practice cannot be excluded. We aimed at setting up an Italian survey collecting data about management of T/PLD administration in ROC patients. Methods: We carried out the development of a questionnaire-based survey on routine clinical practice in the management of ROC patients administered T/PLD. The survey registered the physicians’ approach to modification/discontinuation of treatment, type of modifications, reasons why, and so on. The survey was transmitted to medical oncologists and gynecologic oncologists practicing in national centers/institutions. Results: Fifty-eight Italian centers/institutions returned the compiled questionnaire; participants practiced at community cancer centers or hospitals (56.9%), academic institutions (36.2%), and other settings (private clinics, etc) (6.9%). There was no statistically significant difference in the distribution of practice setting according to geographic areas. Most responders were medical oncologists (84.5%) and were members (82.8%) of at least 1 scientific society or cooperative group. Almost 31.5% of responders reported interruption of the whole treatment, mostly because of toxicity (41.2%), followed by patients’ choice (29.4%), or achievement of clinical benefit (23.5%). Dose reduction was referred by 47.4% of responders. Reduction of dose for both drugs was referred by 88.5% of responders, and the extent of dose reduction ranged between 10% and 30%. Conclusions: This survey highlights the gaps in transposing evidence-based or consensus guidelines in the real-world management of T/PLD administration; these findings could be useful in order to focus the attention on specific knowledge and/or experience gaps and plan pertinent educational programs. [ABSTRACT FROM AUTHOR]

Background The aim of this multicenter, retrospective study was to evaluate the efficacy and safety of metronomic oral cyclophosphamide (MOC) in heavily treated, relapsed ovarian cancer (ROC) patients. Methods oral cyclophosphamide (Endoxan®, Baxter, Italy) was administered at the dose of 50 mg daily, continuously. Treatment-related toxicity and response to treatment were assessed by the NCI-CTC criteria, and RECIST criteria, respectively. Progression-free (PFS), and overall survival (OS) were also assessed. Results 54 patients were analyzed: 20 patients (37.0%) were considered primarily platinum refractory/resistant, while 34 patients (63.0%) were defined as platinum sensitive; 79.6% of patients had received ≥2 previous lines before starting MOC. The objective response rate (ORR) was 20.4%. Eleven patients (20.4%) experienced stable disease and 8 of them had a response duration ≥6 months. A total of 32 patients (59.2.%) progressed during treatment. Median PFS was 4 months, and the 12-month PFS rate was 19.6%; median OS was 13 months, and the 12-month OS rate was 51.5% . Patients responding to MOC showed a more favorable PFS (median = 17 months) compared to patients with stabilization (median = 6 months) or progression of disease (median = 3 months) (p value = 0.0001). Median OS of responding patients was 30 months compared to 11 months in cases achieving stabilization, or progression of disease (median = 8 months) (p value = 0.0001). Only 1 patient experienced grade 3 anemia. Non-hematological grade 3 toxicity was registered in 2 patients. Conclusions MOC could provide a valid alternative in terms of risk/benefit ratio in the palliative treatment of heavily treated ROC patients. [ABSTRACT FROM AUTHOR]

Using a model of human cervical cancer (ME-180 cells), the anti-tumour activity of paclitaxel was compared to that of docetaxel and IDN5109, a newly developed taxane. The growth inhibition effect of taxanes was assessed after 3 days of exposure. DNA analysis, the taxane-dependent modulation of the expression of the alpha and beta subunits of tubulin and DNA fragmentation were assessed by flow cytometry. The presence of apoptosis was confirmed by morphological analysis using a laser scan cytometer. For the evaluation of "in vivo" anti-tumour activity, taxanes were administered to nude mice intravenously once daily, according to a q3/4d x 4 schedule. Docetaxel, IDN5109 and paclitaxel obtained "in vitro" IC(50) values of 0.86, 1.4 and 2.4 nM, respectively. DNA analysis demonstrated a transient block at the G(2)/M phase of the cell cycle only after 12 h of culture in the presence of taxanes and an increase of nuclear fragmentation suggestive for apoptosis after additional 12 and 60 h of exposure. Morphological analysis confirmed the presence of apoptosis. Taxanes induced a down-modulation of the alpha subunit of tubulin in the G(0/1) phase of the cell cycle, and an overexpression of the beta subunit in the G(2)/M phase. A strong anti-tumour activity was obtained "in vivo" for nude mice xenografted using ME-180 cells (T/C=0% for all drugs). These data indicate that the three taxanes are strongly active both "in vitro" and "in vivo" toward ME-180 cells. Clinical studies are now needed to ascertain if the higher anti-tumour activity observed "in vitro" using docetaxel and IDN5109 yields a better clinical response in advanced cervical carcinoma with respect to paclitaxel. [ABSTRACT FROM AUTHOR]

Purpose: The role of dose-dense schedules in the neo-adjuvant treatment (NACT) of locally advanced cervical cancer (LACC) has been reported. This phase II study investigated activity of dose-dense paclitaxel/platinum before radical surgery (RS) in LACC patients.Methods: The primary end-point was the rate of optimal pathological response (OPR: pathological complete/microscopic response). NACT (paclitaxel: 80 mg/m2) and carboplatin (AUC 2) were administered for 6 weeks. Overall response rate (ORR) to NACT was assessed by the RECIST criteria. Patients amenable to surgery were triaged to RS. The null hypothesis was that the OPR rate would improve from 30.0 to 45.0% (α error: 0.05, β error: 0.2). The regimen would be considered active if > 25 OPRs were found.Results: 36 patients were enrolled; 19 patients were stage IIB (52.8%) and 16 (44.4%) patients had pelvic lymph-node involvement at imaging. All patients completed neo-adjuvant chemotherapy; ORR was of 75.0%. RS was performed in 29 (93.5%) patients. Since the OPR was 16.1%, we evaluated the real chances to achieve the number of OPR required by the Simon design and decided to close the study. Grade 3/4 hematological toxicity occurred in 5 patients; surgical morbidity occurred in 14 patients. The 2-year PFS rate was 69.0%.Conclusion: Dose-dense neo-adjuvant paclitaxel/carboplatin is feasible and safe in LACC patients; however, failure to achieve the primary end-point has to be recognized. Given the heterogeneity of the available studies, robust data from an adequately sized prospective study focused on more homogeneous series are required. [ABSTRACT FROM AUTHOR]

Ovarian cancer is the fifth leading cause of cancer death among women and the most lethal gynecologic malignancy. Most women with advanced epithelial ovarian cancer will experience many episodes of recurrent disease with progressively shorter disease-free intervals. For women whose disease continues to respond to platinum-based drugs, the disease can often be controlled for 5 years or more. Enormous progress has been made in the management of this disease, and new targeted treatments such as antiangiogenic drugs, poly(adenosine diphosphate-ribose) polymerase inhibitors, and immune checkpoint inhibitors offer potential for improved survival. A variety of combination strategies are being evaluated to leverage these agents. The objective of this review is to summarize results from clinical trials that tested cytotoxic drugs and target strategies for the treatment of ovarian cancer with particular attention to Phase III and ongoing trials.

Objective: We have updated our findings on the efficacy of concomitant radiochemotherapy plus radical surgery in a larger series of patients (n = 54) with locally advanced cervical cancer (LACC). We also investigated the role of cyclooxygenase-2 (COX-2) in this clinical setting., Methods: Radiotherapy was administered to the whole pelvic region (1.8 Gy/day, totaling 39.6 Gy) in combination with cisplatin (20 mg/m2) and 5-fluorouracil (1,000 mg/m2) (both on days 1-4 and 27-30). Radical surgery was performed 5-6 weeks after the end of treatment., Results: A clinical complete or partial response was observed in all 53 evaluable patients (75.5 and 24.5%, respectively). At pathological examination, 23 of 51 patients (45.1%) undergoing radical surgery showed complete response to treatment, 18 patients (35.3%) only had microscopic residual disease, 6 patients (11.7%) had a partial response and 4 (7.8%) had no change in their disease. When logistic regression was applied, the FIGO stage (chi2 = 5.28, p = 0.021) and tumor to stroma COX-2 ratio (chi2 = 4.72, p = 0.029) retained an independent role in the prediction of the pathologic response to treatment. The 3-year disease-free survival (DFS) was 75.2%, with local relapse-free survival of 86.2% and metastasis-free interval of 89.9% at 3 years. Cases with a high COX-2 ratio showed a shorter DFS than cases with a low COX-2 ratio (p = 0.016). A direct association was shown between COX-2 ratio values and risk of recurrence, as assessed by Cox analysis using COX-2 ratio values as a continuous covariate (chi2 = 3.94, p = 0.047)., Conclusion: This study confirms the possibility of achieving a very high rate of pathological responses in LACC patients administered chemoradiation plus surgery (3-year DFS 75.2%). Moreover, COX-2 status may play a role in the prognostic characterization and prediction of tumor response., (2004 S. Karger AG, Basel.)

Taxanes act by inhibiting microtubule dynamics; in this study, we have investigated mitochondria as an additional target of taxanes. We incubated isolated mitochondria in the presence of taxanes with or without stimulation of the mitochondrial respiratory state. Results showed that they rapidly induced the loss of deltapsim after stimulation of the respiratory state. To evaluate the binding of [14C]paclitaxel to isolated mitochondria, mitochondrial proteins were precipitated yielding 18.6 +/- 2.1 cpm/microg of protein. After stimulation of the respiratory state, binding of [14C]paclitaxel increased up to 163.2 +/- 46.7 cpm/microg of protein. CPM values after Bcl-2 immunoprecipitation was 62.8-fold higher than those of the control antibody, thereby indicating the involvement of Bcl-2 in paclitaxel binding. Then, we established a panel of A2780 cell lines resistant to increasing doses of paclitaxel alone or to high doses of paclitaxel/cyclosporin A (A2780 TC cells). In both cases, Bcl-2 expression was consistently down-regulated, whereas levels of other members of the Bcl-2 family, such as Bax and Bcl-x, did not change in paclitaxel-resistant cell lines. When A2780TC cells were stably transfected with a Bcl-2 construct, paclitaxel sensitivity was partially restored, thereby supporting a direct role of Bcl-2 down-regulation in the maintenance of drug-resistance. Finally, we examined Bcl-2 by immunohistochemistry in a small subset of ovarian cancer paclitaxel-resistant patients and we noticed that the protein is down-regulated in this clinical setting with respect to the expression levels found in drug-sensitive tumors. These findings demonstrate that Bcl-2 is an additional intracellular target of taxanes and that its down-regulation is involved in taxane resistance.

Taxanes represent the most important class of antitumor agents introduced in cancer therapy in the last decade. The first member of the family was paclitaxel, firstly isolated from Taxus Brevifolia and found active as antitumor agent at the end of 60's. In the mid of 90's, a semi-synthetic taxane derived from 10-deacetylbaccatin III was introduced and thereafter named as docetaxel. Taxanes act by inhibiting microtubule dynamics, thereby inducing the arrest in M phase and the consequent activation of the apoptotic program. Since target of taxanes is not directly the genome, they are effective alone or in combination with DNA-damaging drugs in tumors not responding to conventional chemotherapeutics, such as advanced breast and non small cell lung cancer. In this review we will cover the aspects of clinical applications of the currently used taxanes as well as the clinical problems related to their use. Taking into consideration such problems, new taxanes have been developed in order to extend the spectrum of taxane-sensitive tumors and several of them are currently undergoing clinical trials. Among these agents, a newly developed taxane (BAY 59-8862) appears particularly interesting for the fact that it shows excellent oral bioavailability and activity in tumors with inherent resistance to paclitaxel.