Hepatic Encephaopathy is a common complication occurring in patients with Liver cirrhosis. Patients usually develop mild confusion, sleep disturbance or obtundation. It occurs due to accumulation of excess ammonia in the brain, as the liver is unable to metabolize the ammonia. The common gold standard treatment recommended for patients with Hepatic Encephalopathy is Lactulose syrup. This is a non absorbable sugar, often combined with an antibiotic called Rifaxamine to treat this condition. Polyethylene glycol is in a class of medications called osmotic laxatives which works by causing water to be retained with the stool. PEG and lactulose, when used together, result in faster resolution of symptoms suggesting that PEG may be superior to standard lactulose therapy in these patients. Non-absorbable sugars like lactulose are associated with non-serious (mainly gastrointestinal) adverse events like diarrhea and bloating Hence, due to the side effect profile, newer drugs continue to be tested for treatment of Hepatic Encephalopathy. The aim of this research project is to compare the effect of PEG versus lactulose for treatment of HE in patients with liver cirrhosis. The investigators want to compare the resolution of HE as the main outcome. In addition, they will compare length of stay, non-serious (mainly gastrointestinal) adverse events, and 3 months outcome. The investigators hypothesize that rapid purgation of the gut using PEG may resolve HE more effectively than lactulose.
Hepatic encephalopathy (HE) is a common neuropsychiatric complication of liver cirrhosis manifested by mild confusion, sleep disturbance or obtundation. Lactulose treatment has long been the standard of care, which presumably acidifies stool and eradicates toxic metabolites. However a third of these patients with hepatic encephalopathy do not respond to this standard treatment and have refractory HE. Hence newer drugs with effective improvement in HE and better side effect profile are still being tested. Polyethylene glycol (PEG) is in a class of medications called osmotic laxatives which works by causing water to be retained with the stool. PEG and lactulose, when used together, result in rapid overt HE resolution within 24 hours compared to the standard-of-care lactulose, suggesting that PEG may be superior to standard lactulose therapy in patients with cirrhosis hospitalized for acute HE. Rationale Non-absorbable disaccharides like lactulose are associated with non-serious (mainly gastrointestinal) adverse events like diarrhea and bloating, hence, due to the side effect profile, newer drugs continue to be tested for treatment of HE. Hypothesis and Aim The aim of this research project is to compare the effect of PEG with Lactulose for treatment of Hepatic Encephalopathy in patients with liver cirrhosis. The investigators want to compare the resolution of HE as the main outcome. In addition, they would compare length of stay, non-serious (mainly gastrointestinal) adverse events, and 3 months outcome. The investigators hypothesize that rapid purgation of the gut using PEG may resolve HE more effectively than lactulose. These aims are original in that the investigators aim to test this hypothesis on a different patient population (South Asian), where the predominant cause of cirrhosis is due to viral hepatitis C and B. In addition,the investigators will also look at the effect of PEG v lactulose on 3 months outcome in this study. Significance The significance of this proposal is that if the investigators can prove the hypothesis, it will add to the currently limited evidence on use of PEG in treatment of HE in the world. PEG might have a better side effect profile when compared to lactulose. Based on current market pricing of lactulose, if PEG is found to have favorable outcome then it might be more cost effective as well. Hence PEG might be a useful alternative in 30% of those who don't respond to lactulose, if PEG shows favorable outcome. Objective Primary: To determine the effect of PEG versus Lactulose on resolution of HE in patients with liver cirrhosis during inpatient stay at 24 hours, 48 hours and 72 hours . Secondary: To determine the effect of Lactulose versus PEG on length of stay, and 3 months outcome in patients with liver cirrhosis.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
102
Polyethylene glycol will be administered to half of the study patients, and their response recorded and compared with that of the Lactulose arm.
Lactulose (standard of care) will be administered to half of the study patients and their response recorded.
Aga Khan University
Karachi, Sindh, Pakistan
RECRUITINGResolution of Hepatic Encephalopathy
Calculated using Hepatic Encephalopathy scoring Algorithm (HESA). Resolution is defined as reduction of at least 1 grade of HESA score after 24 hours, 48 hours and if applicable 72 hours of therapy during hospital stay
Time frame: Change in HESA score at 24 hours, 48 hours and if applicable, 72 hours of drug administration
Mean Length of inpatient stay in hours
Duration of hospital stay will be recorded in hours
Time frame: at time of patient discharge, an average of 72 hours
3 months outcome (readmission with Hepatic Encephalopathy)
Patient will be asked at 3 month follow up if there was any other readmission anywhere with Hepatic Encephalopathy
Time frame: The three month outcome will be assessed at clinic follow-up at 3 month or by phone call if patient is lost to follow up
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