# DAHANCA

Source: https://onco.cc/companies/dahanca/  
OnCo record `dahanca` (Company). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

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.

## Fields

- Kind: Company
- Last checked: 2026-09-25
- Also known as: Danish Head and Neck Cancer Group; Danish Head and Neck Cancer Study Group
- Tags: ctgov-sponsor; cooperative-group
- HQ: Denmark (seat not stated)
- Type: cooperative-group
- Website: https://www.dahanca.dk

## Sources

- Official website: https://www.dahanca.dk

## Connected records

- cancers: [Head and neck squamous cell carcinoma](https://onco.cc/cancers/head-and-neck/)
- trials: [DAHANCA 5](https://onco.cc/trials/dahanca-5/)

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JSON: https://onco.cc/api/v1/entities/dahanca.json