A Phase II Clinical Trial on the Combination Therapy of PHY906 Plus Capecitabine in Hepatocellular Carcinoma

Mené sur 39 patients atteints d'un carcinome hépatocellulaire et infectés par le virus de l'hépatite B, cet essai de phase II évalue l'efficacité, du point de vue du taux de survie à 6 mois, et la toxicité de PHY906 (une formulation pharmaceutique de 4 types d'herbes utilisées en médecine traditionnelle chinoise) en combinaison avec la capécitabine

The Oncologist, sous presse, 2020, article en libre accès

Résumé en anglais

Background : This study aimed to evaluate efficacy and safety of capecitabine combined with a PHY906 (a pharmaceutical‐grade formulation of four traditional Chinese herbs) in the treatment of advanced hepatocellular carcinoma (HCC) in Asian patients who were positive for hepatitis B virus (HBV).

Methods : This study was an open‐label, phase II safety and efficacy clinical trial of PHY906 and capecitabine in patients with advanced HCC. Patients received 750 mg/m2 capecitabine b.i.d. 14 days plus 800 mg of PHY906 b.i.d. on days 1–4 and days 8–11 every 21‐day cycle. The primary endpoint was 6‐month survival rate, and secondary endpoints were progression‐free survival, overall survival, disease control rate, and safety.

Results : Thirty‐nine subjects completed the study with a 46.2% stable disease rate. The median progression‐free survival was 1.5 months, and median overall survival (mOS) was 6 months with a 51.3% 6‐month survival rate. The most common adverse events included lower hemoglobin, diarrhea, pain, abdomen (not otherwise specified), fatigue, increased aspartate aminotransferase, and bilirubin. Patients who (a) had not received previous chemotherapies or targeted therapy or (b) had lower starting alpha‐fetoprotein (AFP) levels or (c) had HBV infection showed better clinical outcome.

Conclusion : Our data showed that PHY906 increases the therapeutic index of capecitabine by enhancing its antitumor activity and reduces its toxicity profile in advanced HCC.