Combined-modality therapies for non-small cell lung cancer
Abstract
Regionally advanced stage III non-small cell lung cancer (NSCLC) accounts for nearly 40% of all presentations of NSCLC. In the past, such patients received radiotherapy alone, but the median and long-term survival durations were disappointingly poor. Past attempts at combining chemotherapy and radiation were also disappointing, and were troubled by low doses of radiation or orthovoltage equipment or both. Recently, cisplatin-containing regimens have shown some efficacy in stage IV disease. The response rate for these combinations in stage III disease is nearly double that in stage IV disease. The greater response in stage III has led to a series of trials of sequenced chemotherapy and radiotherapy for treatment of regionally advanced (unresectable stage IIIA and IIIB) NSCLC. Several randomized trials have now shown a statistically significant advantage for the combined modality over radiation alone regarding time to treatment failure, median survival duration, and percent of long-term survivors. Other trials have focused on the concurrent use of chemotherapy and radiotherapy. Several pilot studies have suggested that concurrent cisplatin plus chest irradiation can produce apparently beneficial results with respect to local control and are the subject of ongoing clinical trials. At the University of Maryland Cancer Center, we have combined weekly carboplatin 100 mg/m2 with concurrent chest irradiation. The preliminary results are very encouraging. The toxicity of this…
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Evidence Hub reads this as a clinical trial, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence.
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