Does response to UDCA affect the prognosis of small duct PSC?
Some people with small-duct PSC have a rapid improvement in their liver blood tests after starting UDCA, and their ALP and GGT levels return to the normal range. In others, ALP and GGT remain elevated despite taking UDCA.
Is the long-term prognosis different between these two groups? Does normalization of ALP and GGT suggest a lower risk of disease progression, worsening fibrosis, or progression from small-duct PSC to large-duct PSC?
As far as I know, unlike in PBC, UDCA has not been clearly proven to slow the progression of PSC or improve long-term outcomes. So, does normalization of liver enzymes indicate a better prognosis, or does it only show that the blood test results have improved?
I would be interested to hear about other people’s experiences or any studies on this topic.