Validation and reduction of FACT/GOG-Ntx subscale for platinum/paclitaxel-induced neurologic symptoms: a gynecologic oncology group study

Supportive care for women with gynecologic cancers

Supportive care is a multidimensional field, that involves caring for a patient's symptoms either during and/or after treatment. Ideally, once these supportive care needs are met, patients can enjoy an improved quality of life. Supportive care needs include all body systems, and are, therefore, difficult to manage, secondary to the fact that they require collaboration among multiple medical specialties. In this review, several components of supportive care are separated into two categories: tumor-related morbidities and treatment-related morbidities. Some of the themes discussed include nausea and vomiting, cancer pain, psychological distress, fatigue and anemia, small bowel obstruction and peripheral neuropathy. While all of these components are challenging to manage, it is perhaps the psychosocial realm that remains the most unmet need. Regardless, the oncologist must act as a facilitator who addresses these needs and, if unable to address the issue alone, knows how to steer the patient toward the appropriate provider. As these needs are met, the goal is for quality of life to improve; and with the improvement in quality of life we may expect to see improved survival outcomes.

Peripheral nerve damage associated with administration of taxanes in patients with cancer

Peripheral neuropathy is a well recognized toxicity of taxanes, usually resulting to dose modification and changes in the treatment plan. Taxanes produce a symmetric, axonal predominantly sensory distal neuropathy with less prominent motor involvement. A "dying back" process starting from distal nerve endings followed by effects on Schwann cells, neuronal body or axonal transport changes and a disturbed cytoplasmatic flow in the affected neurons is the most widely accepted mechanism of taxanes neurotoxicity. The incidence of taxanes-induced peripheral neuropathy is related to causal factors, such as single dose per course and cumulative dose and risk factors including treatment schedule, prior or concomitant administration of platinum compounds or vinca alcaloids, age and pre-existing peripheral neuropathy of other causes. The most reliable method to assess taxanes neurotoxicity is by clinical examination combined with electrophysiological evaluation. There is currently no effective symptomatic treatment for paclitaxel-associated pain, myalgias and arthralgias. Tricyclic antidepressants and anticonvulsants have been used as symptomatic treatment of neurotoxicity with some measure of success. Therefore, new approaches for prophylaxis against taxanes-induced peripheral neuropathy are needed. Several neuroprotective agents including, thiols, neurotrophic factors, and antioxidants hold promise for their ability to prevent neurotoxicity resulting from taxanes exposure. However, further confirmatory trials are warranted on this important clinical topic. This review critically looks at the pathogenesis, incidence, risk factors, diagnosis, characteristics and management of taxanes-induced peripheral neuropathy. We also highlight areas of future research.

Patient-Reported Outcomes in Phase II Cancer Clinical Trials: Lessons Learned and Future Directions

With increasing limits on the resources available to conduct cancer clinical trials, the inclusion of patient-reported outcomes (PROs) in treatment and symptom management trials must be prioritized. Although it has been suggested on occasion that phase III trials should take precedence over phase II trials, we argue that there is a clear and important role for PRO assessment in phase II trials going forward. To illustrate the value realized from including PROs in phase II trials, we provide case examples from cancer treatment and supportive care. The benefits of including PROs in symptom management intervention research are exemplified using phase II trials targeting cognitive impairment. The inclusion of PROs in phase II cancer clinical trials adds important information about the impact of treatment in health-related quality of life, and advances the science of PRO measurement. These contributions significantly enhance the design of phase III trials, ultimately leading to the efficient utilization of clinical trial resources.