A phase II study of cisplatin and 5-fluorouracil with concurrent hyperfractionated thoracic radiation for locally advanced non-small-cell lung cancer: a preliminary report from the Okayama Lung Cancer Study Group

A recent meta-analysis and randomized studies have demonstrated that combined chemoradiotherapy is associated with a survival advantage for selected patients with locally advanced unresectable non-small-cell lung cancer (NSCLC). We conducted a phase II study of combined chemoradiotherapy to find a more effective combination of drugs and radiation than those previously reported for such patients. Between January 1994 and November 1996, 50 previously untreated patients with locally advanced unresectable NSCLC (stage IIIA with N2 or IIIB disease) were entered in this study. Patients were required to have Eastern Cooperative Oncology Group performance status ≤ 2, age ≤ 75 years and adequate organ function. Treatment consisted of three cycles of cisplatin (20 mg m−2, days 1–5) and 5-fluorouracil (5-FU) (500 mg m−2, days 1–5) every 4 weeks, and concurrent hyperfractionated thoracic radiation (1.25 Gy twice daily, with a 6-h interfraction interval; total radiation dose, 62.5–70 Gy). Of the 50 patients entered, 37 (74%) responded to this chemoradiotherapy, including two (4%) with complete response. By a median follow-up time of 41.0 months, 35 patiennts had died and 15 were stil alive. The median time to progression for responding patients was 14.1 months (range, 2.6–51.3+ months). The median survival time was 18.7 months, with a survival rate of 66.0% at 1 year, 46.0% at 2 years and 27.6% at 3 years. Survival outcome was strongly affected by the extent of nodal involvement (median survival time, 27.4 months for N0–2 disease (n = 37) vs 10.7 months for N3 disease (n = 13);P = 0.007). The major toxicities of treatment were leukopenia and neutropenia (≥ Grade 3, 58% and 60% respectively). Other toxicities of ≥ Grade 3 included thrombocytopenia (26%), anaemia (26%), nausea/vomiting (16%) and radiation oesophagitis (6%). Treatment-related death occurred for one patient. Our findings suggest that cisplatin and 5-FU in combination with concurrent hyperfractionated thoracic radiation is effective and feasible for the treatment of locally advanced unresectable NSCLC. The short-term survival in this study appeared to be more encouraging than those of similar chemoradiation trials. A randomized trial will be needed to compare the combination of cisplatin and 5-FU with other platinum-based regimens together with concurrent hyperfractionated thoracic radiation. In addition, in future studies, inclusion criteria for N3 disease with or without supraclavicular involvement should be reconsidered to correctly evaluate the effect of combined chemoradiotherapy for locally advanced unresectable NSCLC. © 2000 Cancer Research Campaig

Assessment of polygenic architecture and risk prediction based on common variants across fourteen cancers

Abstract: Genome-wide association studies (GWAS) have led to the identification of hundreds of susceptibility loci across cancers, but the impact of further studies remains uncertain. Here we analyse summary-level data from GWAS of European ancestry across fourteen cancer sites to estimate the number of common susceptibility variants (polygenicity) and underlying effect-size distribution. All cancers show a high degree of polygenicity, involving at a minimum of thousands of loci. We project that sample sizes required to explain 80% of GWAS heritability vary from 60,000 cases for testicular to over 1,000,000 cases for lung cancer. The maximum relative risk achievable for subjects at the 99th risk percentile of underlying polygenic risk scores (PRS), compared to average risk, ranges from 12 for testicular to 2.5 for ovarian cancer. We show that PRS have potential for risk stratification for cancers of breast, colon and prostate, but less so for others because of modest heritability and lower incidence

Effects of vinorelbine on quality of life and survival of elderly patients with advanced non-small-cell-lung cancer

Vinorelbine, a semisynthetic vinca alkaloid, represents a welltolerated treatment for elderly patients with advanced non-small-cell lung cancer (NSCLC). We explored the quality of life (QoL) of such patients in a multicenter randomized trial that compared vinorelbine treatment with supportive care alone. Methods: Eligible patients were 70 years of age or older, had stage IV or IIIB NSCLC that was ineligible for radiotherapy, and had a performance status of 0–2 (a status of fully active to a status of capable of all self-care but unable to work). Vinorelbine was given intravenously on days 1 and 8 of a 21-day treatment cycle, for a total of six cycles. QoL was evaluated with European Organization for Research and Treatment of Cancer questionnaires QLQ-C30 and QLQ-LC13, and the QoL data were analyzed by fitting a linear mixed model for each QoL scale. Survival curves were plotted and were compared with the Mantel– Haenszel test. Relative hazards of death and 95% confidence intervals (CIs) were estimated by the Cox model. Results: Investigators, blinded to the results, stopped the trial early because of a low enrollment rate. (From April 1996 to November 1997, 191 of the 350 targeted patients were randomly assigned.) Data from 161 patients have been analyzed. Vinorelbine-treated patients scored better than control patients on QoL functioning scales, and they reported fewer lung cancerrelated symptoms but reported worse toxicity-related symptoms. There was a statistically significant (two-sided P = .03) survival advantage for patients receiving vinorelbine; median survival increased from 21 to 28 weeks in the vinorelbine-treated group. The relative hazard of death for vinorelbine-treated patients was 0.65 (95% CI = 0.45–0.93). Conclusion: Vinorelbine improves survival of elderly patients with advanced NSCLC and possibly improves overall QoL