Radiation dermatitis (RD) is one of the most common side effects of Radiation therapy (RT) and 95% of patients receiving RT may experience some form of radiation dermatitis.

A wide variety of topical, oral, and intravenous agents are used to prevent/treat Radiation dermatitis but currently there is no gold standard in the prevention and management of this condition and no treatment can be explicitly recommended.

RadiaAce Gel is a wound dressing Hydrogel (Acemannan Hydrogel) for the management of RD which provides optimal moist wound environment necessary to the healing process.

Based on its composition as well as the supporting data on safety and performance of the functional ingredient Acemannan in wound healing, RadiaAce may well be suited to complement the prevention and therapy of radiation dermatitis.

The primary aim of the study is to evaluate the safety and performance of RadiaAce as compare to Biafine in reducing the proportion of breast cancer patients that experience grade 2 or higher RD as measured by the RTOG scoring system

Inclusion Criteria:

1. Female patients
2. Age > 18
3. Patients with histologically-confirmed diagnosis of breast cancer
4. Patients after breast lumpectomy and that scheduled to receive radiotherapy
5. Patients to receive minimum of 40.05 Gy to primary field
6. Must be able to comply with treatment schedule
7. Study-specific signed informed consent prior to randomization

Exclusion Criteria:

1. Inflammatory or connective tissue disorders of the skin
2. Mental incompetence, including psychological or addictive disorders which would preclude completion of questionnaires
3. Previous radiation therapy to the breast
4. Tumour involvement of the skin
5. Rash, ulceration or open wound in treatment field
6. Known skin allergy or sensitivity to Aloe Vera or Biafine
7. Current lactation
8. Pregnancy
9. Any other reason that, in the opinion of the investigator, prevents the subject from