I have experienced 3 bouts of Hematuria with clots this year that sent me to the hospital ER because of blockage. After the first, I was advised I had radiation cystitis, which was 6 years out from salvage radiation. This year I started on Lupron and Xtandi for prostate cancer recurrence and had three 3 month duration Lupron shots, and two one month duration shots. Some observations:
• Hematuria occurred about 1 week following the monthly duration Lupron for both Oct and Nov
• Hematuria occurred about 23 days after my April (3 month) Lupron injection
• The prescribing information for Lupron notes that in the case of the 6 month injection, 6.6% of patients experienced Hematuria or Hemorrhagic Cystitis as a ‘treatment emergent” adverse event, although none experienced this as a ‘treatment related’ event. Maybe Lupron aggravates an underlying condition (eg radiation cystitis in my case).
• The prescribing information also notes that for the 3 month, 4 month, and 6 month duration Lupron injections, Lupron reaches its steady state concentration during the 3rd week after dosing, during the 4th week after dosing, and during the 3rd week after dosing, respectively. This lines up with my May hematuria event following April Lupron injection.
• My thinking is that Lupron increases vulnerability to blood vessel rupture / Hematuria for those patients with underlying conditions (radiation cystitis). It just cannot be coincidence.
• I am trying to make a judgement as to whether the risk of another hematuria event is reduced in the absence of Lupron. Is there some ‘reversibility’ of the this condition?
• Anybody see a similar pattern?
My MO does not see Lupron as a contributing factor however my urologist says otherwise.