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The phase 4 ABOUND.70+ trial assessed the safety and efficacy of nab-paclitaxel/carboplatin continuously or with a 1-week break between cycles in elderly patients with advanced non-small cell lung cancer (NSCLC). Patients ≥70 years with locally advanced/metastatic NSCLC were randomized 1:1 to first-line nab-paclitaxel days 1, 8, 15 plus carboplatin day 1 of a 21-day cycle (21d) or the same nab-paclitaxel/carboplatin regimen with a 1-week break between cycles (21d + break; 28d). The primary endpoint was the percentage of patients with grade ≥ 2 peripheral neuropathy (PN) or grade ≥ 3 myelosuppression. Other key endpoints included progression-free survival (PFS), overall survival (OS), and overall response rate (ORR). A total of 143 patients were randomized (71 to 21d, 72 to 21d + break). The percentage of patients with grade ≥ 2 PN or grade ≥ 3 myelosuppression was similar between the 21d and 21d + break arms (76.5 and 77.1%; P = 0.9258). Treatment exposure was lower in the 21d arm compared with the 21d + break arm. Median OS was 15.2 and 16.2 months [hazard ratio (HR) 0.72, 95% CI 0.44–1.19; P = 0.1966], median PFS was 3.6 and 7.0 months (HR 0.48, 95% CI 0.30–0.76; P

Purpose Appropriate therapy for Eastern Cooperative Oncology Group (ECOG) performance status (PS) -2 patients with advanced non–small-cell lung cancer (NSCLC) remains challenging. PS-2 patients on ECOG 1594 had a median survival (MS) of only 4.1 months and 1-year overall survival (OS) of 19%. Three percent had grade 5 toxicity. Patients and Methods ECOG 1599, the first PS 2–specific, US cooperative group trial for treatment-naïve advanced NSCLC, randomly assigned patients to dose-attenuated carboplatin/paclitaxel (the least toxic regimen in ECOG 1594) or gemcitabine/cisplatin (which yielded an MS of 7.9 months in PS-2 patients). Patients received either carboplatin (area under the concentration-time curve, 6) and paclitaxel 200 mg/m2 every 3 weeks (CbP) or gemcitabine 1 g/m2 days 1 and 8 and cisplatin 60 mg/m2 day 1 every 3 weeks (CG). Results One hundred three patients were enrolled; 100 proved eligible. Median age was 66 years; 46% had at least 5% weight loss; 88% had stage IV or recurrent disease. Median number of cycles administered was three per arm. CbP featured more grade 3 neutropathy (10% v 0%) and more grade ≥ 3 neutropenia (59% v 33%), whereas CG yielded more grade ≥ 3 thrombocytopenia (33% v 14%), more grade ≥ 3 fatigue (22% v 14%), and more grade ≥ 1 creatinine elevations (43% v 6%). One grade 5 toxicity, confined to the CbP arm, occurred. Response rate, time to progression, MS, and 1-year OS rates for CG and CbP, were 23%, 4.8 months, 6.9 months, and 25%, and 14%, 4.2 months, 6.2 months, and 19%, respectively. Conclusion Platinum-based combination chemotherapy for PS-2 patients with NSCLC is feasible with acceptable toxicity, but survival in these patients remains inferior to that of PS-0 to -1 patients.

The Radiation Therapy Oncology Group enrolled 30 patientswith recurrent malignant astrocytomas onto a phase IIstudy (RTOG 91-13). Patients were treated with all-trans-retinoicacid at a starting dose of 120 mg/m2per day orally continuously until disease progression. Fourteenpatients had glioblastoma, 14 had anaplastic astrocytoma, and2 had other histologies; 53% were under 50years of age. All patients had failed radiationtherapy and/or at least one chemotherapy regimen. Allpatients had a Karnofsky performance status score ofat least 70, but only 37% had aKPS of 90-100. Forty percent had a neurologicfunction status of grade 1 (able to work).A minimum of 4 weeks of all-trans-retinoic aciddefined adequate treatment. Twenty-five patients received adequate therapy.Most common toxicities were dry skin, cheilitis, anemia,and headache; 3 patients had grade 3 headacherequiring suspension of all-trans-retinoic acid. No grade 3hematologic toxicity was observed. Of 25 adequately treatedpatients, 3 showed objective regression of tumor onmagnetic resonance imaging and computed tomography scans, 3patients remained stable, and 19 patients had diseaseprogression. The median time to tumor progression was3.8 months and the median survival time was5.7 months.This study suggests that this dose of singleagent all-trans-retinoic acid has modest clinical activity againstrecurrent malignant gliomas with tolerable side effects. Aresponse rate of 12% and a stabilization rateof 12% are lower than expected. Future studieswith higher dosage or in combination with biologicalresponse modifiers or chemotherapy may be warranted.

The median age of presentation with lung cancer is 71, making the elderly the dominant subgroup. Although some elderly patients are frail, others have great physiological reserve. Geriatric assessment can clarify the specific strengths and weaknesses of older patients, improving management. This assessment should, at the minimum, encompass performance status, comorbidity, medications, level of independence in activities of daily living and instrumental activities of daily living, cognitive assessment, nutrition assessment, and assessment of social support. The fit elderly with localized disease should be offered curative resection; video-assisted thoracic surgery may be preferred over thoracotomy. Fit septuagenarians with node positive or > 4 cm primary tumors should then be considered for adjuvant chemotherapy. For less fit patients, the data on stereotactic radiosurgery indicate that it presents a viable treatment option. Data on stage III disease are limited but suggest that chemoradiotherapy, particularly when the chemotherapy is administered on a weekly schedule, is feasible in fit older patients. For the older patients with metastatic cancer, abundant tissue should be obtained at diagnosis to allow for comprehensive molecular characterization with the hopes of rendering the patient eligible for targeted therapy. When such a targeted therapy is not available, there is duration of life and quality of life benefit to the administration of cytotoxic chemotherapy. The standard of care for older patients with Eastern Cooperative Oncology Group (ECOG) performance status 0 to 2 is a platinum-based doublet. Prospective data on second-line therapy after failure of first-line therapy are limited but suggest a benefit to treatment.

Purpose Elderly patients often have comorbidities and other characteristics that make the selection of treatment daunting. Methods We have reviewed the available evidence in the literature to gauge the results of therapy for elderly lung cancer patients. Results The beneficial results achieved with adjuvant chemotherapy in the general population with early non–small-cell lung cancer (NSCLC) cannot be automatically extrapolated to the elderly, who are at higher risk of toxicity. Retrospective analyses of combined chemoradiotherapy in locally advanced NSCLC patients suggest equivalent therapeutic benefit for younger and older patients, despite heightened toxicity. There have been no elderly-specific phase III trials for locally advanced NSCLC. For advanced NSCLC, on the basis of evidence-based data, single-agent chemotherapy remains the standard of care for nonselected elderly patients. However, retrospective analyses suggest that the efficacy of platinum-based combination chemotherapy is similar in fit older and younger patients, with increased but acceptable toxicity for elderly patients. In limited-disease small-cell lung cancer (SCLC), sequential chemoradiotherapy is clearly less toxic compared with a standard concurrent approach, but our assessment of treatment is hindered by the absence of prospective elderly-specific trials. Although prophylactic cranial irradiation has emerged as a standard strategy, it should be omitted in patients with cognitive impairment. In extensive SCLC, etoposide in combination with either cisplatin or carboplatin has emerged as standard treatment; hematopoietic support may be necessary. Conclusion With the exception of advanced NSCLC, prospective elderly-specific studies are lacking. Available data suggest that outcomes in the fit elderly mirror results observed in younger patients, although toxicity is generally worse.

Purpose Etoposide and cisplatin (EP) has been a standard treatment for extensive-disease small-cell lung cancer (SCLC). An earlier phase III trial reported improved survival for patients receiving irinotecan plus cisplatin (IP) versus EP. Our trial was designed to determine if a modified weekly regimen of IP would provide superior survival with less toxicity than EP. Patients and Methods The primary objective was to compare overall survival in extensive-disease SCLC patients randomly assigned to receive IP (n = 221) or EP (n = 110). Patients were randomly assigned in 2:1 ratio to cisplatin 30 mg/m2 intravenously (IV) + irinotecan 65 mg/m2 IV on days 1 and 8 every 21 days, or cisplatin 60 mg/m2 IV on day 1, and etoposide 120 mg/m2 IV on days 1 to 3 every 21 days for at least four cycles, until progressive disease, or until intolerable toxicity resulted. Results Selected grade 3/4 toxicities for IP/EP were: neutropenia (36.2% v 86.5%; P < .01), febrile neutropenia (3.7% v 10.4%; P = .06), anemia (4.8% v 11.5%; P = .02), thrombocytopenia (4.3% v 19.2%; P < .01), vomiting (12.5% v 3.8%; P = .04), and diarrhea (21.3% v 0%; P < .01). There was no significant difference in response rates (48% v 43.6%), median time to progression (4.1 v 4.6 months), or overall survival (median survival time, 9.3 months v 10.2 months; P = .74). Conclusion Treatment with this dose and schedule of IP did not result in improved survival when compared with EP. Fewer patients receiving IP had grade 3/4 anemia, thrombocytopenia, neutropenia, and febrile neutropenia compared with patients receiving EP, but more had grade 3/4 diarrhea and vomiting.