Randomized controlled study about the efficacy of the mouth rinse Caphosol in patients with allogeneic stem cell transplantation. 85% of the patients receive a severe oral mucositis due to their treatment.

70 patients will be randomized in the intervention (Caphosol) or in the standard (state-of-the-art) group. Primary endpoint is the duration of the mucositis, secondary endpoints are the occurence of oral mucositis measured with the WHO-scale and the occurence of pain measured with the NRS-scale (Numeric Rating Scale).

• Trial with medical device

Inclusion criteria:

• Allogeneic stem cell transplantation
• Male and female patients age 18-80
• Signed informed consent after information

Exclusion criteria:

• Contra-indications due to ethical reasons
• Unable to read or write
• Unable to speak or understand the german language
• Low-salt diet