Clinical Study to Evaluate Safety and Efficacy of KAM1403 Gel to Treat Radiation Dermatitis

Inclusion Criteria: * Female above 18 years of age * Diagnosed with breast cancer and scheduled to receive postoperative radiotherapy * Treatment of regional lymph nodes (i.e. axillary, supraclavicular, or internal mammary) is allowed. * Schedule for breast radiotherapy (RT) to a dose of 50 Gy in 2 Gy/fx, for 5 weeks and then a boost to the lumpectomy cavity. * Minimum of 3 weeks from chemotherapy to start of radiation therapy. * Patient agrees to use only the test products during the study period Exclusion Criteria: * Tumor involvement of the skin * Patient has another dermatological disease/condition that could interfere with clinical evaluation including infected atopic dermatitis lesions * Patient has a previous history of allergy to the ingredients of the tested formulations * Paget's disease of the nipple. * Pregnant or lactating females