Therapeutic Plasma Exchange in Patients With Acute on Chronic Liver Failure: A Randomized Controlled Trial (PLEXAR)
试验速览
- 阶段
- 3 期
- 发起方
- 入组人数
- 130
- 主要终点
- Overall Survival
研究概览
简要总结
Acute on chronic liver failure (ACLF) is a distinct syndrome in patients with chronic liver disease with rapid clinical deterioration and has high short term mortality within one month.Despite aggressive clinical care, only half of the patients could survive an episode of ACLF. The investigators hypothesized that the early treatment with therapeutic plasma exchange with plasma and albumin in ACLF patients might improve overall survival in carefully selected patients by removing cytokines, chemokines and toxic substances.
详细描述
Acute on chronic liver failure (ACLF) lacks a consensus definition and definitive management approaches. The various management strategies include treatment of acute insult, support of multiple organ systems and disease-specific medications such as antivirals for hepatitis B, steroids for alcoholic hepatitis, and autoimmune hepatitis. Despite aggressive clinical care, only half of the patients could survive an episode of ACLF. ACLF is a dynamic condition and has specific time-related disease course. Majority of patients of the patients attain their final grade of ACLF between 3 rd and 7th day and makes it an ideal time to assess the prognosis. Recently, liver transplantation option also explored in patients not responding to standard medical care and appeared promising. Early liver transplantation is considered if the baseline model for end-stage liver disease (MELD) score > 28, Asia pacific association for the study of the liver (APASL) ACLF Research Consortium (AARC) score of > 10, advanced hepatic encephalopathy in the absence of organ failures or overt sepsis. However, liver transplantation is feasible only in 25% cases and approximately 67% waitlist mortality. Treating ACLF patients early in the disease course, i.e., window period, may prevent multiorgan dysfunction and improve outcomes. Therefore, these alternative modalities can act as bridging to liver transplantation and hasten the spontaneous liver regeneration and hence, transplant-free recovery in some patients.
Plasma exchange has been shown to reduce cytokines, inflammatory mediators, and damage-associated molecular patterns. The early experience of therapeutic plasma exchange in patients with hepatitis B ACLF shows a survival benefit compared to standard of care. Changes in albumin quantity and quality are noted in patients with cirrhosis. An increase in oxidized albumin, ischemia-modified albumin, and albumin dimerization is observed ACLF patients and changes are more pronounced compared to cirrhotic patients. These changes are well correlated with short and long term mortality.
Hence the investigators hypothesized that the early treatment with therapeutic plasma exchange with plasma and albumin in ACLF patients improves overall survival in carefully selected patients.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 75 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients diagnosed with ACLF as per APASL criteria with AARC score of ≥8
排除标准
- •Uncontrolled sepsis
- •Septic shock requiring inotropes despite fluid resuscitation
- •Active or recent bleeding (unless controlled for >48 hours).
- •Severe thrombocytopenia (≤20×10^9/L)
- •Acute kidney injury with Creatinine > 2 or the need of RRT
- •Respiratory failure (Severe ARDS)
- •Chronic kidney disease
- •Hepatocellular carcinoma outside Milan criteria (1 nodule ≤5 cm or 3 nodules ≤3 cm)
- •HIV infection
研究组 & 干预措施
Plasma exchange
The consented patients will receive standard medical management with sessions of single volume plasma exchange with fresh frozen plasma and 5% human albumin.Plasma exchange session will be done on an alternate day to a maximum of 5 procedures.
干预措施: Plasma exchange (Procedure)
Standard medical treatment
The consented patients will receive standard medical treatment which includes adequate nutrition (35-45 Kcal/Kg with 1.5gm/Kg protein) diuretics, anti HE measures, appropriate antibiotics for infections, entecavir 0.5 mg once daily for hepatitis B, and steroids for autoimmune hepatitis.
干预措施: Standard medical treatment (Drug)
结局指标
主要结局
Overall Survival
时间窗: 90 days
次要结局
- Transplant free survival(90 days)
- Development of organ dysfunction(28 days)
- Development of cirrhosis complications(28 days)
- Improvement in Model for end stage liver disease score(90 days)
研究者
Dr. Pramod Kumar
Principal Investigator
Asian Institute of Gastroenterology, India