To examine the effect of dasatinib plus quercetin on liver fibrosis in individuals with biopsy proven NAFLD with fibrosis by performing a double-blind randomized controlled proof-of-principle study
Non-Alcoholic Fatty Liver Disease (NAFLD) is estimated to affect approximately 25-30% of the population in Western countries and is now the leading cause of chronic liver disease globally. NAFLD is a progressive liver disease and approximately 30% of individuals progress from simple steatosis to Non-Alcoholic Steatohepatitis (NASH), which can further progress to cirrhosis and hepatocellular carcinoma. In the Netherlands, it is estimated that 2.5 million people have NAFLD and this number is thought to increase by 50% in the next 10 years driven by an increasing prevalence of obesity and type 2 diabetes, and an ageing population. Independent of other cardiometabolic diseases, cardiovascular disease is the leading cause of death in individuals with NAFLD, followed by extrahepatic malignancies and liver-related complications. NAFLD results in sustained healthcare costs and economic losses, and reduced health-related quality of life. It is now widely accepted that liver fibrosis is a result of liver injury secondary to NAFLD and is a major predictor for liver-related and overall mortality in individuals with NAFLD. The process of fibrosis progression is not completely understood, and it can vary considerably from one individual to another. Several risk factors for fibrosis progression have been identified: age, hypertension, obesity and type 2 diabetes. As of to date, no treatment is available that proved to be successful to target hepatic fibrosis. The only therapeutic options currently available therefore are the control of the concomitant metabolic diseases in addition to diet and lifestyle changes. Unfortunately, this inevitably will lead to polypharmacy and thereby decreases treatment adherence and increases the risk of adverse events and interactions with other drugs. Recently, cellular senescence has been put forward as a causal factor in the development and progression of NAFLD and NAFLD related liver fibrosis. Cellular senescence is one of the hallmarks of aging and is defined as a stable arrest of the cell cycle coupled to specific phenotypic changes. Senescent cells secrete a collection of proteins called the senescence-associated secretory phenotype (SASP). This pro-inflammatory secretome drives age-related tissue dysfunction. Interestingly, metabolic dysregulation is thought to favor cellular senescence in several tissues involved in the pathogenesis of NAFLD such as the liver, pancreas and adipose tissue, further perpetuating metabolic dysregulation. Of interest, cellular senescence can be targeted using senolytics. The combination of dasatinib, which is an EMA-approved tyrosine kinase inhibitor and the antioxidant quercetin, which is a flavonol present in many fruits and vegetables, successfully clears senescent cells. Recent work in humans and rodents have shown that tissue function, including liver metabolism, can be recovered by clearing senescent cells with senolytics including. Due the potential role of senescence in NAFLD related fibrosis, dasatinib plus quercetin might thus be an interesting future therapeutic option to tackle NAFLD related fibrosis. Based on the long-term safety profile of these treatments and the high unmet clinical need as there currently is no treatment for NAFLD we aim to perform a double-blind randomized controlled proof-of-principle study in which patients with NAFLD related liver fibrosis will be treated with dasatinib plus quercetin intermittently three days per week for three weeks, followed by a four-week medication-free period. Subsequently, this treatment cycle will be repeated three times
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
30
The intervention group will receive intermittent orally administered dasatinib (100 mg/day) plus quercetin (1000 mg/day) on three consecutive days for three consecutive weeks followed by a four-week medication free period. This cycle will be repeated three times.
The placebo group will receive intermittent orally administered placebo tablets on three consecutive days for three consecutive weeks followed by a four-week medication free period. This cycle will be repeated three times.
Amsterdam UMC location AMC
Amsterdam, Netherlands
The primary endpoint is the binary outcome improvement of fibrosis with at least 1-point without worsening of fibrosis and NAFLD score based on histology after 21 weeks (yes/no). Individuals will be labeled as responder or non-responder.
As assessed on the obtained liver biopsies before and after the treatment
Time frame: 21 week
Mean change in number of senescent cells at baseline and end of treatment
As assessed on the obtained liver biopsies before and after the treatment
Time frame: 21 week
Percent of patients with reversal of NAFLD (Steatosis without ballooning and with or without mild inflammation) and no worsening of fibrosis) from baseline to end of treatment
As assessed on the obtained liver biopsies before and after the treatment
Time frame: 21 week
Global hepatic mRNA expression baseline to end of treatment
As assessed on the obtained liver biopsies before and after the treatment
Time frame: 21 week
Change in NAFLD activity score (NAS)
As assessed on the obtained liver biopsies before and after the treatment
Time frame: 21 week
change in Activity component of steatosis-activity-fibrosis (SAF) score: steatosis -1 point, lobular inflammation -1 point, ballooning -1 point
As assessed on the obtained liver biopsies before and after the treatment
Time frame: 21 week
- Differences in EPOS 7-tier staging system score baseline to end of treatment
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As assessed on the obtained liver biopsies before and after the treatment
Time frame: 21 week
change in Fibrosis-4 score (Fib-4 score)
Based on blood obtained before and after the treatment
Time frame: 21 week
Change in NAFLD Fibrosis Score (NFS)
Based on blood obtained before and after the treatment
Time frame: 21 weeks
Change in Liver enzymes
Based on blood obtained before and after the treatment
Time frame: 21 weeks
Change in Liver synthesis function
Based on blood obtained before and after the treatment
Time frame: 21 weeks
Change in liver stiffness and liver steatosis (with controlled attenuation parameter) measurement by Fibroscan
Based on Fibroscan scores obtained before and after the treatment
Time frame: 21 weeks
Change in Glycosylated haemoglobin type A1c (HbA1c)
Based on blood obtained before and after the treatment
Time frame: 21 weeks
Change in Fasting plasma glucose (FPG)
Based on blood obtained before and after the treatment
Time frame: 21 weeks
Change in Fasting glucagon
Based on blood obtained before and after the treatment
Time frame: 21 weeks
Change in Fasting insulin
Based on blood obtained before and after the treatment
Time frame: 21 weeks
change in Homeostatic model assessment of insulin resistance (HOMA-IR)
Based on blood obtained before and after the treatment
Time frame: 21 weeks
Glucose variability (determined by 2 weeks of Freestyle libre at begin and end of the trial.
Based Freestyle libre data
Time frame: 21 weeks
Change in RAND-36 questionnaires
Based on the questionnaires obtained before and after the treatment
Time frame: 21 week
Change in EQ-5D-5L questionnaires
Based on the questionnaires obtained before and after the treatment
Time frame: 21 week
Safety endpoints
* Number of treatment-emergent adverse events during the trial * Number of treatment-emergent myelosuppression * Number of treatment emergent infections * Number of subjects discontinuing treatment due to gastrointestinal adverse events
Time frame: 21 weeks
Effect of dasatinib plus quercetin on
Pulse baseline vs end of treatment (week 21)
Time frame: week 21
Effect of Dasatinib and Quercetin on
QTC time on ECG baseline versus end of treatment (Week 21)
Time frame: 21 weeks
Change in weight before after treatment
KG
Time frame: 21 weeks
Effect of Dasatinib and Quercetin on
changes in haemoglobin levels (mmol/l)
Time frame: 21 weeks
Effect of Dasatinib and Quercetin on
changes in creatinine (micromol/L)
Time frame: 21 weeks
Effect of Dasatinib and Quercetin on
Fecal microbiota composition by 16s sequencing
Time frame: 21 weeks
Effect of Dasatinib and quercetin on
Changes in systolic blood pressure before and after treatment
Time frame: 21 weeks
Effect of dasatinib and quercetin on
Changes in diastolic blood pressure before and after treatment
Time frame: 21 weeks
Changes in BMI before and after treatment with dasatinib and quercetin
BMI (weight /heigt\^2)
Time frame: 21 weeks
Effect of Dasatinib and Quercetin on
amount of thrombocytes ( 10\^9/L)
Time frame: 21 weeks
Effect of Dasatinib and Quercetin on
erythrocytes (10\^12/L)
Time frame: 21 weeks
Effect of Dasatinib and Quercetin on
leucocytes (10\^9/L)
Time frame: 21 weeks
Effect of Dasatinib and quercetin on
Differential White bloodcell count (%)
Time frame: 21 weeks
Effect of Dasatinib and Quercetin on
urea (mmol/l)
Time frame: 21 weeks
Effect of Dasatinib and quercetin on
bilirubin (total) levels (umol/L)
Time frame: 21 weeks
Effect of Dasatinib and Quercetin on
alkaline phosphatase levels (U/L)
Time frame: 21 weeks
Effect of Dasatinib and quercetin on
Sodium levles (mmol/L)
Time frame: 21 weeks
Effect of Dasatinib and quercetin on
potassium levels (mmol/L)
Time frame: 21 weeks
Effect of Dasatinib and quercetin on
Calcium levels(mmol/L)
Time frame: 21 weeks