[U.I.C.C. information office on controlled therapeutic trials in cancer: an example of an information service in on-going research (author's transl)].

Since 1967, the U.I.C.C. Information Office has been collecting and reviewing, from a methodological point of view, data on controlled therapeutic trials in cancer in progress all over the world. The aim is to transmit the information to researchers who are interested, to encourage co-operation, to study methodological problems to study the distribution of trials by countries, sites, etc..., and lastly to determine the part of controlled therapeutic trials in progress in cancer therapy. At present, such services in on-going research have a tendancy to develop in other fields of scientific research.