Advances in Therapeutic Development for Radiation Cystitis

Area of Science:

• Urology
• Oncology
• Radiation Oncology

Background:

• Pelvic radiation therapy can cause urinary bladder injury, leading to radiation cystitis (RC).
• Late sequelae of RC include storage symptoms and potentially life-threatening hematuria (radiation hemorrhagic cystitis).
• Existing treatments for RC and radiation hemorrhagic cystitis have limited efficacy.

Purpose of the Study:

• To review current interventions for radiation cystitis and radiation hemorrhagic cystitis.
• To highlight the limitations of existing treatments.
• To discuss emerging therapies for radiation hemorrhagic cystitis.

Main Methods:

• Literature review of treatments for radiation cystitis and radiation hemorrhagic cystitis.
• Discussion of surgical and non-surgical interventions.
• Exploration of novel therapeutic approaches.

Main Results:

• Various interventions exist, including blood transfusion, bladder irrigation, intravesical instillations (alum, silver nitrate, prostaglandins, formalin), fulguration, and surgery.
• Non-surgical treatments show modest success.
• Botulinum toxin injections and intravesical immunosuppression with local tacrolimus are emerging therapies.

Conclusions:

• There is no definitive treatment for radiation cystitis and radiation hemorrhagic cystitis.
• Current interventions provide modest relief, with a need for more effective treatments.
• Intravesical immunosuppression with local tacrolimus represents a promising new therapeutic avenue.