SIRS in ACLF exacerbate adverse effects of ammonia - sarcopenia, infections, immune dysfunction, HE and organ dysfunction Persistent or incident hyperammonemia during first week of hospitalization in patients with ACLF is associated with increased risk of organ failure and death. Prospective studies on the efficacy of ammonia lowering therapies on major adverse liver related outcomes (MALO) (any of AARC III, bacterial infection, overt HE grade or death) in hyperammonemic ACLF patients with no overt HE are limited. In this study we aim to to compare the safety and efficacy of ammonia lowering therapy (goal directed lactulose and rifaximin) compared to SMT to prevent major liver related outcomes (MALO) (any of AARC III, bacterial infection, overt HE grade or death) in hyperammonemic ACLF patients with no overt HE.

Hypothesis: Goal directed ammonia lowering therapy in hyperammonemic ACLF patients with no overt HE leads to reduced incidence of major adverse liver related outcomes (MALO) (any of AARC III, bacterial infection, overt HE grade or death) at day 7, 28 and day 90.

AIM:- To compare the safety and efficacy of ammonia lowering therapy (goal directed lactulose and rifaximin) compared to SMT to prevent major liver related outcomes (MALO) (any of AARC III, bacterial infection, overt HE grade or death) in hyperammonemic ACLF patients with no overt HE.

Study design:

• A Prospective Randomized Controlled Trial.
• Single Centre.
• Open label.
• Block Randomization will be done , it will be implemented by IWRS method.
• The study will be conducted in Department of Hepatology, ILBS.

Inclusion Criteria:

1. Age 18-70 years
2. ACLF as per APASL criteria (AARC grade I/II)
3. Baseline ammonia levels of ≥135ug/dl or 79.5umol/l
4. Given informed consent

Exclusion Criteria:

• 1. Overt HE 2. AARC grade III 3. Confirmed or suspected bacterial infection 4. Extrahepatic organ failure 5. Renal dysfunction lasting for more than 48 hours or need for vasoconstrictors 6. Paralytic ileus 7. Patients with hepatocellular carcinoma beyond Milan criteria or any other neoplastic disorder 8. Pregnant and lactating women 9. Use of lactulose, rifaximin or LOLA in past 48h 10. Uncontrolled DM, HT, CAD 11. Patients with allergy or other contraindications of the used drugs