Quality of Life in Japanese Men Treated with Intensity Modulated Radiotherapy for Localized Prostate Cancer:...

Area of Science:

• Oncology
• Radiation Oncology
• Urology

Background:

• Localized prostate cancer treatment significantly impacts patient quality of life (QOL).
• Intensity-modulated radiation therapy (IMRT) is a common treatment modality.
• Androgen deprivation therapy (ADT) is often used in conjunction with IMRT.

Purpose of the Study:

• To assess the longitudinal changes in QOL for localized prostate cancer patients treated with IMRT, with or without ADT.
• To evaluate the impact of IMRT and ADT on various QOL domains using the Expanded Prostate Index Composite (EPIC).

Main Methods:

• Longitudinal analysis of EPIC summary and subdomain scores at eight time points up to three years post-IMRT.
• Comparison of QOL changes between patients who received IMRT with and without ADT.

Main Results:

• Urinary and bowel scores showed transient decreases early after IMRT but returned to baseline by three months, irrespective of ADT.
• Sexual function scores remained consistently low throughout the study period.
• Hormonal scores improved over time, with hormonal bother scores initially decreasing then increasing by three years post-IMRT.

Conclusions:

• IMRT effectively minimizes QOL deterioration in localized prostate cancer patients by reducing adverse events.
• The impact on urinary and bowel function is generally short-lived.
• Sexual function remains a significant concern for patients undergoing IMRT for prostate cancer.