The influence of comorbidity and comedication on grade III/IV toxicity and prior discontinuation of chemotherapy in recurrent ovarian cancer patients: An individual participant data meta-analysis of the North-Eastern German Society of Gynecological Oncology (NOGGO)

Influence of Concomitant Polypharmacy on Docetaxel-induced Febrile Neutropenia

Background/Aim

Docetaxel (DTX) is metabolized by liver cytochromes P450 (CYP) 3A4 (CYP3A4) and 3A5 (CYP3A5) CYP3A4 activity is considered the main factor affecting the effectiveness in DTX clearance. We, therefore, explored the association between DTX-induced febrile neutropenia (FN) and concomitant polypharmacy involving CYP3A4 inhibitors in cancer patients.

Patients and Methods

Among patients who received docetaxel, we compared the number of concomitant medications between patients with and without FN, and risk factors associated with FN were identified.

Results

The total number of concomitant CYP3A4 inhibitors and substrates used was significantly higher in patients with FN [mean: 2.1 (95% confidence interval (CI)=1.5-2.9)] than in those without FN [mean: 1.4 (95% CI=1.0-1.8)] (p=0.01). The only risk factor for FN was the use of ≥2 concomitant CYP3A4 inhibitors and substrates in total (OR=4.82, 95% CI=1.77-14.1; p=0.002).

Conclusion

Polypharmacy involving CYP3A4 inhibitors and substrates increases the risk of DTX-induced FN.

Patient-Reported Outcomes (PROs) and Health-Related Quality of Life (HR-QoL) in Patients with Ovarian Cancer: What Is Different Compared to Healthy Women?

INTRODUCTION

The aim of this analysis was to evaluate the health-related quality of life (HR-QoL) in patients with ovarian cancer using a patient-reported outcome (PRO) based questionnaire and to compare it to the healthy female population in Germany and to other ovarian cancer patients worldwide. Additionally, we looked for differences in the HR-QoL with respect to the patients' ages in our cohort.

METHODS

The HR-QoL for 155 enrolled patients with ovarian cancer was assessed by the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30) prior to surgery and then compared with 501 healthy females in Germany, as well as to the previously published European Organization for Research and Treatment of Cancer (EORTC) reference data for 917 patients with ovarian cancer worldwide. Moreover, we grouped our cohort by ages <65 and >65 years and analyzed them for further differences. To identify the differences, T-tests were applied.

RESULTS

Overall, 155 patients were enrolled, and 126 patients had advanced-stage ovarian cancer (FIGO III-IV) (82.4%). Fifty-five (36%) patients were >65 years. Except for the physical functioning scale, all other domains of the functioning scales were significantly lower in our patients with ovarian cancer than in the healthy female population. The emotional (50 points versus 60 points, p = 0.02), cognitive (76 points versus 88 points, p = 0.005), and social functioning scales (68 points versus 81 points, p = 0.006) were lower in the younger subgroup. Further, the younger subgroup exhibited significantly more fatigue (40 points versus 29 points, p = 0.03) and financial difficulties (20 points versus 2 points, p < 0.001) than the older subgroup.

DISCUSSION

Interestingly, the patients with ovarian cancer had no significant differences in the physical functioning scale when compared with the healthy women. In contrast, the patients, especially in the younger group, needed special support for the emotional and social areas of their daily lives.

Role of predictive markers for severe postoperative complications in gynecological cancer surgery: a prospective study (RISC-Gyn Trial)

BACKGROUND

Surgery for gynecological cancer involves highly invasive and complex procedures potentially associated with various complications, which can cause extended hospital stays and delay of subsequent therapy, with a detrimental effect on the prognosis. The aim of this study was to explore and define the predictors of severe postoperative complications in patients undergoing surgery for gynecologic cancer.

METHODS

Patients undergoing surgery for gynecologic cancers were analyzed prospectively from October 2015 through January 2017. Using validated assessment tools preoperatively, we assessed comorbidities, performance status, quality of life, nutritional and body composition by bioelectrical impedance analysis, and the surgical data of each patient. Surgical complications were graded using the Clavien-Dindo criteria. Using stepwise logistic regression models, we identified predictive markers for postoperative complications.

RESULTS

Of the 226 enrolled patients, 40 (17.7%) experienced a grade ≥IIIb complication according to the Clavien-Dindo criteria. In the regression analysis, overweight/obesity (body mass index >25) (OR 6.41, 95% CI 2.38 to 17.24; p<0.001) and impaired physical functioning defined by a quality of life questionnaire (OR 4.19, 95% CI 1.84 to 9.50; p=0.001) emerged as significant predictors of postoperative complications. Moreover, postoperative complications were predicted by phase angle of bioelectrical impedance analysis <4.75° (OR 3.11, 95% CI 1.35 to 7.16; p=0.008) and Eastern Cooperative Oncology Group (ECOG) performance status >1 (OR 2.51, 95% CI 1.06 to 5.92; p=0.04). Intraoperative factors associated with higher risk of postoperative complications were increased use of norepinephrine (>11 µg/kg/min) (OR 5.59, 95% CI 2.16 to 14.44; p<0.001) and performance of large bowel resection (OR 4.28, 95% CI 1.67 to 10.97; p=0.002).

CONCLUSION

In patients undergoing surgery for gynecological cancer, preoperative evaluation of performance status according to ECOG, domains of quality of life and nutritional status, as well as intraoperative monitoring of risk factors, might help to identify patients at high risk for severe postoperative complications, and thus reduce surgical morbidity and mortality.

Clinical trial participation and aggressive care at the end of life in patients with ovarian cancer

OBJECTIVES

In non-gynecologic cancers, clinical trial participation has been associated with aggressive care at the end of life. The objective of this investigation was to examine how trial participation affects end of life outcomes in patients with ovarian cancer.

METHODS

In a retrospective review of women diagnosed with ovarian cancer at our institution between January 2010 and December 2015, we collected variables identified by the National Quality Forum as measures of aggressive end of life care including chemotherapy in the last 14 days of life, intensive care unit (ICU) admission in the last 30 days of life, or death in the acute care setting. Trials investigating medications but not surgical interventions were included. The primary outcome of this study was the association between trial participation and the National Quality Forum measures of aggressive end of life care in ovarian cancer decedents. Data were analyzed with univariable and multivariable parametric and non-parametric testing, and time to event outcomes were analyzed using the Kaplan-Meier method and Cox's proportional hazard models.

RESULTS

Among 391 women treated for ovarian cancer, 62 patients (16%) participated in a clinical trial. Patients enrolled in clinical trials were more likely to have chemotherapy administered within 14 days of death; however, no association was found with other metrics of aggressive care at the end of life including the initiation of a new chemotherapy regimen in the last 30 days of life, ICU admissions, and death in an acute care setting. Among patients with recurrent ovarian cancer, median overall survival for trial participants was 57 months compared with only 31 months in non-trial participants (p<0.001).

CONCLUSIONS

In patients with ovarian cancer, clinical trial enrollment is associated with chemotherapy administration within 14 days of death, but not other measures of aggressive care at the end of life. Given the importance of clinical trial participation in improving care for women with ovarian cancer, this study suggests that concerns regarding aggressive care prior to death should not limit clinical trial participation.

Associations of Polypharmacy and Inappropriate Medications with Adverse Outcomes in Older Adults with Cancer: A Systematic Review and Meta-Analysis

BACKGROUND

Polypharmacy (PP) and potentially inappropriate medications (PIM) are highly prevalent in older adults with cancer. This study systematically reviews the associations of PP and/or PIM with outcomes and, through a meta-analysis, obtains estimates of postoperative outcomes associated with PP in this population.

MATERIALS AND METHODS

We searched PubMed, Embase, Web of Science, and Cochrane Register of Clinical Trials using standardized terms for concepts of PP, PIM, and cancer. Eligible studies included cohort studies, cross-sectional studies, meta-analyses, and clinical trials which examined outcomes associated with PP and/or PIM and included older adults with cancer. A random effects model included studies in which definitions of PP were consistent to examine the association of PP with postoperative complications.

RESULTS

Forty-seven articles met the inclusion criteria. PP was defined as five or more medications in 57% of the studies. Commonly examined outcomes included chemotherapy toxicities, postoperative complications, functional decline, hospitalization, and overall survival. PP was associated with chemotherapy toxicities (4/9 studies), falls (3/3 studies), functional decline (3/3 studies), and overall survival (2/11 studies). A meta-analysis of four studies indicated an association between PP (≥5 medications) and postoperative complications (overall odds ratio, 1.3; 95% confidence interval [1.3-2.8]). PIM was associated with adverse outcomes in 3 of 11 studies.

CONCLUSION

PP is associated with postoperative complications, chemotherapy toxicities, and physical and functional decline. Only three studies showed an association between PIM and outcomes. However, because of inconsistent definitions, heterogeneous populations, and variable study designs, these associations should be further investigated in prospective studies.

IMPLICATIONS FOR PRACTICE

Polypharmacy and potentially inappropriate medications (PIM) are prevalent in older adults with cancer. This systematic review summarizes the associations of polypharmacy and PIM with health outcomes in older patients with cancer. Polypharmacy and PIM have been associated with postoperative complications, frailty, falls, medication nonadherence, chemotherapy toxicity, and mortality. These findings emphasize the prognostic importance of careful medication review and identification of PIM by oncology teams. They also underscore the need to develop and test interventions to address polypharmacy and PIM in older patients with cancer, with the goal of improving outcomes in these patients.

Cardiovascular safety of oncologic agents: a double-edged sword even in the era of targeted therapies - Part 2

INTRODUCTION

Patients with cancer are subject to the cardiotoxic effects of cancer therapy. Improved cancer treatments lead to more cancer-survivors, who though are exposed to various forms of cardiovascular (CV) disease (CVD) as they age. Aging patients are at increased risk of developing both malignancy and CVD or they may have survived some form of CVD as a result of effective CV treatments. Furthermore, patients with CVD may develop cancer and require treatment (and vice versa), all contributing to increased morbidity and mortality. The prevalence of both malignancy and CVD will increase due to the trend toward a longer lifespan.

AREAS COVERED

In part 2 of this review, the discussion of the CV effects of specific oncology drugs is completed with inclusion of additional immunological agents, current hormonal and other agents. Early detection and monitoring of cardiotoxicity, use of biomarkers and other imaging and diagnostic methods and prevention and treatment options are also discussed.

EXPERT OPINION

As outlined in part 1 of this review, oncologists need to be aware of the CV adverse-effects of their treatments and make careful and expectant clinical decisions, especially in patients with preexisting CVD or CV risk factors. Similarly, cardiologists should consider a detailed previous history of treatment for malignant disease, including prior chemotherapy exposure, dose(s) received, and/or combined modality therapy with chest radiotherapy. Both specialists should collaborate in order to minimize the impact of these two ubiquitous diseases (cancer and CVD) and mitigate the adverse effects of treatment modalities.

Cardiovascular safety of oncologic agents: A double-edged sword even in the era of targeted therapies - part 1

INTRODUCTION

Patients with cancer are subject to the cardiotoxic effects of cancer therapy and as more patients survive cancer due to improved treatment they are exposed to various forms of cardiovascular (CV) disease as they age, and vice-versa. Such an interplay of age with both malignancy and CV disease may contribute to increased morbidity and mortality.

AREAS COVERED

This two-part review considers the effects of cancer drug treatment on the CV system. In Part I, the various types of CV and cardiometabolic toxicity of anti-cancer drugs and the possible mechanisms involved are discussed. Also, among the specific oncologic agents, the CV effects of the classical agents and of the large molecule immunological agents (monoclonal antibodies, including immune checkpoint inhibitors) are detailed.

EXPERT OPINION

Oncologic agents produce a variety of CV adverse effects, including cardiomyopathy and heart failure, peri-myocarditis, coronary artery disease, peripheral vascular disease, hypertension (HTN), cardiac arrhythmias, valvular heart disease, and pulmonary HTN. Both the oncologist and the cardiologist need to be aware of such adverse effects and of the specific agents that produce them. They need to join forces to prevent, anticipate, recognize, and manage such complications.

Preference of elderly patients' to oral or intravenous chemotherapy in heavily pre-treated recurrent ovarian cancer: final results of a prospective multicenter trial

BACKGROUND

Palliative systemic treatment in elderly gynaecological cancer patients remains a major challenge. In recurrent ovarian cancer (ROC), treosulfan an active alkylating drug showed similar cytotoxicity whether as oral (p.o.) or intravenous (i.v.) application. The aim of this innovative trial was to evaluate the preference of elderly patients (≥65 years) for p.o. or i.v. chemotherapy focusing compliance, outcome, toxicities, and geriatric aspects as secondary endpoints.

METHODS

Patients with ROC had the free choice between treosulfan i.v. (7000 mg/m² d1, q29d) or p.o. (600 mg/m² daily d1-28, q57d). Only indecisive participants were randomized.

RESULTS

Overall 123 patients with 2^nd to 5^th recurrence were registered and 119 received at least one cycle of chemotherapy. 85.7% preferred treosulfan i.v. and 14.3% oral, where only three patients were randomized. Main reasons for i.v. preference associated with individual expectations of lower rate of gastrointestinal disorders, higher activity and tolerability of treatment. Median of applied chemotherapies was three (range 1-12 cycles), with most common grade 3/4 toxicities thrombopenia (18.7%), leukopenia (15.7%), ascites (7.6%), bowel obstruction (6.7%), and abdominal pain (4.2%). Median time until progression/overall survival was 5.2/7.8 months (i.v.), and 5.6/10.4 months (p.o.), respectively, without significant differences in efficacy.

CONCLUSIONS

Elderly patients with recurrent ovarian cancer asked and demonstrated active participation in the decision-making process of their oncological treatment and favoured predominantly the i.v. application. Treosulfan was generally well-tolerated despite comorbidities and heavy pre-treatment. Our study demonstrates that patients' preference did not influence prognosis negatively and remains important in gynaecologic oncology decision practice.

EUDRACT NR

2004-000719-25; NCT 00170690.