Neoplasms

Skin and Connective Tissue Diseases

All Conditions

Breast Neoplasms

Carcinoma

Breast Diseases

Skin Diseases

Conventionally fractionated radiotherapy of the breast followed by a tumor bed boost sequentially or

Conventionally fractionated radiotherapy of the breast with simultaneous integrated boost to the tumor bed or

Hypofractionated radiotherapy of the breast followed by a tumor bed boost sequentially

Hypofractionated radiotherapy of the breast with simultaneous integrated boost to the tumor bed

Standard Radiation

Hypofractionation with SIB

Jürgen Dunst, MD

Hypofractionation with simultaneous integrated boost has been investigated in a few trials and appears to be safe and feasible.

Investigators initiated this multicenter two-armed phase III prospective trial to analyse the non-inferiority of hypofractionation with simultaneous integrated boost in patients with early breast cancer in comparison to standard fractionation.

Control Arm:

Conventionaly fractionated radiotherapy of the breast 28 × 1.8 Gy = 50.4 Gy followed by a tumor bed boost sequentially 5 to 8 × 2.0 Gy = 10.0 Gy to 16.0 Gy, total dose 60.4 Gy to 66.4 Gy.

or Conventionaly fractionated radiotherapy of the breast 28 × 1.8 Gy = 50.4 Gy with simultaneous integrated boost to the tumor bed, total dose 28 × 0.3 Gy or 0.45 Gy= 8.4 Gy or 12,6 Gy, total dose 58,8 Gy to 63.0 Gy.

or Hypofractionated radiotherapy of the breast 16 × 2.66 Gy = 42.56 Gy followed by a tumor bed boost sequentially 5 to 8 × 2.0 Gy = 10.0 Gy to 16.0 Gy, total dose 52.56 Gy to 58.56 Gy.

Experimental Arm:

Hypofractionated radiotherapy of the breast 16 × 2.50 Gy with simultaneous integrated boost to the tumor bed, total dose within the boost volume 16 × 3.00 Gy.

Hypofractionation With Simultaneous Integrated Boost vs. Standard Fractionation in Early Breast Cancer

Adjuvant Radiotherapy After Breast-conserving Surgery in Early Breast Cancer: Hypofractionation With Simultaneous Integrated Boost vs. Standard Fractionation

any local or regional recurrence or distant metastasis or death

Spots Global Cancer Trial Database for hypofractionation with sib