The efficacy of ursodeoxycholic acid and bezafibrate combination therapy for primary biliary cirrhosis: A prospective, multicenter study

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Abstract

Aim

Treatment with ursodeoxycholic acid (UDCA) improves the survival of stage I and II primary biliary cirrhosis (PBC) patients. However, new therapeutic options are needed for patients who are refractory to UDCA and for those whose disease is at an advanced stage. Bezafibrate could be useful in PBC treatment, since it increases phospholipid output into the bile and reduces the cytotoxicity of hydrophobic bile acids, which are increased with cholestasis.

Methods

We conducted two prospective, multicenter randomized open studies in non-cirrhotic patients with PBC to evaluate the efficacy of bezafibrate. One study compared UDCA and bezafibrate monotherapy (study 1: 45 patients [37 females], mean age 55.9 years), and the other evaluated the addition of bezafibrate to patients who were refractory to UDCA (study 2: 21 patients [18 females], mean age 54.1 years).

Results

Study 1 demonstrated that bezafibrate monotherapy was as effective as UDCA and study 2 revealed that bezafibrate combined with UDCA was effective in improving and maintaining biliary enzymes where the ineffectiveness of long-term treatment with UDCA was confirmed.

Conclusion

This multicenter, randomized, open study revealed that combination therapy of bezafibrate and UDCA improved biliary enzymes in non-cirrhotic Japanese patients with PBC refractory to UDCA. Further studies are needed to evaluate whether combination therapy improves histological staging and prognosis.

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