Steroid Dosing for Transaminitis in Autoimmune Hepatitis
For transaminitis due to autoimmune hepatitis (AIH), initiate prednisone at 40-60 mg daily in adults (or 1 mg/kg daily, maximum 60 mg) or prednisolone at 0.5-1 mg/kg daily, combined with azathioprine 50 mg daily (started after 2 weeks), then taper steroids over 6 months to a maintenance dose of 5-10 mg daily. 1, 2
Initial Induction Dosing
The standard first-line approach uses combination therapy:
- Prednisone: Start at 40-60 mg daily (or 1 mg/kg body weight) 1
- Alternative: Prednisolone 0.5-1 mg/kg daily 2
- Azathioprine: Begin at 50 mg daily after 2 weeks, then increase to 100 mg daily (1-2 mg/kg) based on tolerance 2
The 2-week delay before adding azathioprine serves three purposes: confirms steroid responsiveness, allows TPMT testing, and avoids confusing azathioprine-induced hepatotoxicity with treatment failure 1, 2.
Tapering Schedule (Example for 60 kg Patient)
Following the EASL protocol 2:
- Week 1: Prednisolone 60 mg daily
- Week 2: 50 mg daily
- Week 3: 40 mg daily + start azathioprine 50 mg
- Week 4: 30 mg daily
- Week 5-6: 25-20 mg daily + increase azathioprine to 100 mg
- Week 7-9: 15-12.5 mg daily
- Week 10+: 10 mg daily
Once biochemical remission is achieved (normal transaminases and IgG), reduce prednisolone to 7.5 mg daily after 3 months, then to 5 mg daily over the next 3-4 months 2.
Critical Monitoring Points
Assess response at 4-8 weeks 1:
- If biochemical response occurs: Continue tapering as above
- If no response: Reconsider diagnosis or check medication adherence before escalating therapy
Laboratory testing should occur every 2-4 weeks during induction, then every 3-4 months once remission is achieved 1.
Special Circumstances
Acute severe AIH with liver failure: Use high-dose intravenous corticosteroids ≥1 mg/kg (up to 100 mg prednisolone IV) 2. However, if no improvement occurs within 7 days, list for emergency liver transplantation rather than continuing steroids 2. Research shows that corticosteroids provide little benefit in fulminant AIH and may increase septic complications 3.
Non-cirrhotic patients concerned about steroid side effects: Consider budesonide 9 mg daily plus azathioprine as an alternative, but never use budesonide in cirrhotic patients due to impaired first-pass metabolism causing systemic toxicity 2.
Azathioprine contraindications: Use prednisone monotherapy only if treatment duration expected <6 months or if complete TPMT deficiency exists. Avoid prolonged prednisone monotherapy >10 mg daily due to significant toxicity 1.
Common Pitfalls
- Don't delay azathioprine when bilirubin >6 mg/dL (100 μmol/L) - wait until it drops below this threshold 2
- Don't use prednisone monotherapy long-term - it causes excessive side effects without the steroid-sparing benefit of azathioprine 1
- Don't continue steroids indefinitely - the goal is eventual steroid withdrawal while maintaining azathioprine after achieving sustained remission 1, 2
- Don't use budesonide in cirrhosis - the lack of first-pass metabolism leads to systemic steroid toxicity 2
Treatment Goals
Complete normalization of both transaminases AND IgG levels is essential, as persistent elevations predict relapse, ongoing histological activity, progression to cirrhosis, and poor outcomes 2. The ultimate goal is biochemical remission maintained for at least 24 months before considering complete immunosuppression withdrawal 1.