{"entity":{"id":"dahanca","kind":"company","name":"DAHANCA","aka":["Danish Head and Neck Cancer Group","Danish Head and Neck Cancer Study Group"],"tldr":"DAHANCA, the Danish Head and Neck Cancer Group established in September 1976, writes Denmark's head and neck cancer guidelines and ran the numbered DAHANCA radiotherapy trials, including DAHANCA 5 on the radiosensitiser nimorazole in OnCo.","summary":"DAHANCA, the Danish Head and Neck Cancer Study Group, was established in September 1976 and is part of the Danish Multidisciplinary Cancer Group (DMCG); it is responsible for national guidelines and for the national head and neck cancer database (dahanca.dk). Its website states no postal address, so no seat is given here. In OnCo it is the sponsor of DAHANCA 5 (phase 3, nimorazole with radiotherapy in head and neck squamous cell carcinoma, run from 1986 to 1994 before registry registration). It has no products of its own.","asOf":"2026-09-25","links":[{"label":"Official website","url":"https://www.dahanca.dk"}],"tags":["ctgov-sponsor","cooperative-group"],"related":[],"cancers":["head-and-neck"],"sections":[],"technologies":[],"targets":[],"drugs":[],"companies":[],"institutions":[],"pathways":[],"terms":[],"trials":["dahanca-5"],"people":[],"bottlenecks":[],"keyPapers":[],"journals":[],"dependsOn":[],"notes":[],"provenance":{"editedBy":"OnCo cooperative groups round (group websites, ClinicalTrials.gov v2, corpus trial records)","editedOn":"2026-09-25"},"hq":"Denmark (seat not stated)","country":"DK","companyType":"cooperative-group","website":"https://www.dahanca.dk","founded":1976,"investors":[],"funding":[]},"route":"/companies/dahanca/","neighbours":{"cancer":[{"id":"head-and-neck","kind":"cancer","name":"Head and neck squamous cell carcinoma","route":"/cancers/head-and-neck/"}],"trial":[{"id":"dahanca-5","kind":"trial","name":"DAHANCA 5","route":"/trials/dahanca-5/"}]}}