For adults with primary biliary cholangitis (PBC)1
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For adults with primary biliary cholangitis (PBC)1
Unlike UDCA, OCALIVA activates the farnesoid X receptor (FXR), which plays a critical role in bile acid homeostasis. Multiple metabolic processes in the liver and intestine are controlled by FXR, including1,3:
*How OCALIVA and UDCA work together in PBC is not entirely understood.
In the pivotal trial, 7% of OCALIVA patients were intolerant to UDCA. For those patients, OCALIVA is effective as monotherapy.1
In a single-center, double-blind, placebo-controlled, crossovera study of 8 PBC patients with inadequate response to UDCA, 3-month treatment with OCALIVAb vs placebo showed5:
Study limitation: n=8 patients. No clinical conclusions should be made based on these data.
aPatients were randomized to two 3-month crossover treatment periods with placebo and OCALIVA, separated by a 1-month washout period without study treatment.5
bOCALIVA was administered at 5 mg daily for 1 month, and then increased to 10 mg daily for 2 months.5
cThe rate of bile acid transport was evaluated using a specialized technique combining PET scanning of the liver with concomitant administration of a radiolabeled bile acid tracer, 11C-CSar.5
dSecretion of bile acids was calculated using the rate constant for the secretion of 11C-CSar from the hepatocytes into the biliary canaliculi.5
11C-CSar, [N-methyl-11C]cholylsarcosine; MOA, mechanism of action; PET, positron emission tomography; UDCA, ursodeoxycholic acid.
Primary biliary cholangitis, or PBC, is a progressive autoimmune liver disease that puts patients at risk for liver failure and death.
In PBC, the immune system launches a persistent attack on the small bile ducts within the liver, resulting in continuous bile duct destruction and chronic cholestasis. This disrupts the normal flow of bile acids out of the liver.
Triggered by autoimmunity, the inflammatory cascade leads to bile duct damage and toxic concentrations of bile acids in the liver, ultimately driving the development of fibrosis, cirrhosis, and potentially, liver failure.
Elevation of the liver enzyme alkaline phosphatase is a marker of cholestasis and PBC disease progression—and is used to help monitor a patient’s response to treatment.
The current standard of care, ursodeoxycholic acid, or UDCA, primarily works to dilute the bile acid pool by replacing or displacing toxic concentrations of bile acids.
If patients have an inadequate response to UDCA, they may need additional treatment options that utilize distinct mechanisms to address this progressive disease in a different way.
Nuclear receptors have emerged as an important therapeutic target in liver diseases. One particular nuclear receptor of interest is the farnesoid X receptor, or FXR.
FXR is predominantly expressed in the liver and intestine. FXR is a key regulator of bile acid, inflammatory, fibrotic, and metabolic pathways.
OCALIVA®, obeticholic acid, an FXR agonist, has a mechanism of action that is different from UDCA. Activating FXR at the transcriptional level, in part, limits the size of the circulating bile acid pool through 2 primary mechanisms: inhibiting bile acid synthesis and increasing bile acid secretion.
Inhibiting synthesis limits the production of bile acids that contribute to the progressive cholestatic liver injury in PBC.
OCALIVA also increases secretion to stimulate bile acid flow, or choleresis, and potentially reduces hepatic exposure to bile acids.
OCALIVA uniquely engages these 2 mechanisms to reduce the amount of circulating bile acids, promote choleresis, and potentially limit the excess accumulation of bile acids in the liver observed in PBC.
In clinical studies, OCALIVA (with or without UDCA) significantly lowered alkaline phosphatase, a marker of cholestasis and bile duct destruction.
For more information about OCALIVA and to find resources for your patients and your practice, visit ocalivahcp.com.
WARNING: HEPATIC DECOMPENSATION AND FAILURE IN PRIMARY BILIARY CHOLANGITIS PATIENTS WITH CIRRHOSIS
WARNING: HEPATIC DECOMPENSATION AND FAILURE IN PRIMARY BILIARY CHOLANGITIS PATIENTS WITH CIRRHOSIS
OCALIVA, a farnesoid X receptor (FXR) agonist, is indicated for the treatment of adult patients with primary biliary cholangitis (PBC)
either in combination with ursodeoxycholic acid (UDCA) with an inadequate response to UDCA or as monotherapy in patients unable to tolerate UDCA.
This indication is approved under accelerated approval based on a reduction in alkaline phosphatase (ALP). An improvement in survival or disease-related symptoms has not been established. Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trials.
OCALIVA is contraindicated in patients with:
Hepatic decompensation and failure, sometimes fatal or resulting in liver transplant, have been reported with OCALIVA treatment in PBC patients with cirrhosis, either compensated or decompensated. Among postmarketing cases reporting it, median time to hepatic decompensation (e.g., new onset ascites) was 4 months for patients with compensated cirrhosis; median time to a new decompensation event (e.g., hepatic encephalopathy) was 2.5 months for patients with decompensated cirrhosis. Some of these cases occurred in patients with decompensated cirrhosis when they were treated with higher than the recommended dosage for that patient population; however, cases of hepatic decompensation and failure have continued to be reported in patients with decompensated cirrhosis even when they received the recommended dosage.
Hepatotoxicity was observed in the OCALIVA clinical trials. A dose-response relationship was observed for the occurrence of hepatic adverse reactions including jaundice, worsening ascites, and primary biliary cholangitis flare with dosages of OCALIVA of 10 mg once daily to 50 mg once daily (up to 5-times the highest recommended dosage), as early as one month after starting treatment with OCALIVA in two 3-month, placebo-controlled clinical trials in patients with primarily early stage PBC.
Routinely monitor patients for progression of PBC, including hepatic adverse reactions, with laboratory and clinical assessments to determine whether drug discontinuation is needed. Closely monitor patients with compensated cirrhosis, concomitant hepatic disease (e.g., autoimmune hepatitis, alcoholic liver disease), and/or with severe intercurrent illness for new evidence of portal hypertension (e.g., ascites, gastroesophageal varices, persistent thrombocytopenia) or increases above the upper limit of normal in total bilirubin, direct bilirubin, or prothrombin time to determine whether drug discontinuation is needed. Permanently discontinue OCALIVA in patients who develop laboratory or clinical evidence of hepatic decompensation (e.g., ascites, jaundice, variceal bleeding, hepatic encephalopathy), have compensated cirrhosis and develop evidence of portal hypertension (e.g., ascites, gastroesophageal varices, persistent thrombocytopenia), experience clinically significant hepatic adverse reactions, or develop complete biliary obstruction. If severe intercurrent illness occurs, interrupt treatment with OCALIVA and monitor the patient’s liver function. After resolution of the intercurrent illness, consider the potential risks and benefits of restarting OCALIVA treatment.
Severe pruritus was reported in 23% of patients in the OCALIVA 10 mg arm, 19% of patients in the OCALIVA titration arm, and 7% of patients in the placebo arm in a 12-month double-blind randomized controlled clinical trial of 216 patients. Severe pruritus was defined as intense or widespread itching, interfering with activities of daily living, or causing severe sleep disturbance, or intolerable discomfort, and typically requiring medical interventions. Consider clinical evaluation of patients with new onset or worsening severe pruritus. Management strategies include the addition of bile acid binding resins or antihistamines, OCALIVA dosage reduction, and/or temporary interruption of OCALIVA dosing.
Patients with PBC generally exhibit hyperlipidemia characterized by a significant elevation in total cholesterol primarily due to increased levels of high-density lipoprotein-cholesterol (HDL-C). Dose-dependent reductions from baseline in mean HDL-C levels were observed at 2 weeks in OCALIVA-treated patients, 20% and 9% in the 10 mg and titration arms, respectively, compared to 2% in the placebo arm. Monitor patients for changes in serum lipid levels during treatment. For patients who do not respond to OCALIVA after 1 year at the highest recommended dosage that can be tolerated (maximum of 10 mg once daily), and who experience a reduction in HDL-C, weigh the potential risks against the benefits of continuing treatment.
The most common adverse reactions (≥5%) are: pruritus, fatigue, abdominal pain and discomfort, rash, oropharyngeal pain, dizziness, constipation, arthralgia, thyroid function abnormality, and eczema.
Please click here for Full Prescribing Information, including Boxed WARNING.
To report SUSPECTED ADVERSE REACTIONS, contact Intercept Pharmaceuticals, Inc. at 1-844-782-ICPT or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
If you have questions or would like more information about OCALIVA, contact Intercept Medical Information.