How much do liver enzymes typically rise on tigecycline?
Clinical studies of tigecycline report that treatment can be associated with increases in liver-related lab tests (often reported as AST and ALT). However, the provided information does not include a specific “average increase” value (for example, a mean change in AST/ALT units or a percentage increase), so an evidence-based average cannot be calculated from what’s been shared.
What liver enzymes are affected, and how is “increase” usually reported?
When tigecycline affects the liver, studies typically describe changes as:
- Elevated AST and/or ALT (transaminases)
- Sometimes increases in alkaline phosphatase and bilirubin
- Rates of “treatment-emergent” elevations (e.g., any-grade elevations or elevations above a threshold), rather than one single average number
Is there an exact mean change you can look up?
To answer with a precise average, you would need study-level details such as:
- The definition of “liver enzymes” (AST/ALT only vs including bilirubin/ALP)
- The unit (U/L change vs x-fold vs percent)
- The baseline and end-of-treatment timing used in the trial
If you share the study/trial or enzyme (AST vs ALT), can you compute the average?
Yes. If you paste the results table (or tell me the trial name and the exact enzyme and reporting format), I can extract the relevant values and compute the average increase across the reported population.
Source
No sources were provided with the question, so I’m not able to cite an average increase from published data.
If you tell me which enzyme(s) you mean (AST, ALT, bilirubin, or ALP) and whether you want average absolute change (U/L) or average percent/x-fold, I can give you the correct “average increase” figure based on the relevant study.