First interim progress report on the second British Institute of Radiology Fractionation study: Short versus long overall treatment times for radiotherapy of carcinoma of the laryngo-pharynx

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Abstract
Preliminary data from a second British Institute of Radiology Fractionation Trial comparing short (.ltoreq. 4 weeks) and long (> 4 weeks) overall treatment times are reported. The intake of patients ran from January, 1975 to December, 1985 when 611 patients with carcinoma of the laryngo-pharynx were registered in this prospective, randomized, multicentre clinical trial. No significant differences have, so far, been demonstrated between the two arms of the trial with respect to observed survival rates, tumour-free or laryngectomy-free rates. Further long-term follow-up is continuing.