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Length of cancer trials has more than halved over past 30 years

BMJ 2005; 330 doi: https://doi.org/10.1136/bmj.330.7493.689 (Published 24 March 2005) Cite this as: BMJ 2005;330:689
  1. Roger Dobson
  1. Abergavenny

The average length of cancer trials has fallen over the last 30 years from seven to three years, a new research report has shown (British Journal of Cancer 2005;92: 811-4

The analysis shows that the median duration of trials that recruited at least 90% of the target number of participants fell from 7.2 years during the period 1971-5 to 2.7 years in the period 1996-2000.

The study's authors, from the UK Medical Research Council's Clinical Trials Unit, used the national register of cancer trials (NRCT) of the …

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