Hepatitis B Virus Reactivation In A Patient Treated with Alectinib
Article Information
Boussuges Martin, Foch Emilie*, Allou Nathalie, Moreau Diane, Andre Michel
Pneumologie, Centre Hospitalier Universitaire Felix Guyon, Allée des Topazes, Saint Denis, France
*Corresponding Author: Foch Emilie, Pneumologie, Centre Hospitalier Universitaire Felix Guyon, Allée des Topazes, Saint Denis, France
Received: 21 January 2020; Accepted: 07 April 2020; Published: 24 May 2021
Citation: Boussuges Martin, Foch Emilie, Allou Nathalie, Moreau Diane, Andre Michel. Hepatitis B Virus Reactivation In A Patient Treated with Alectinib. Archives of Clinical and Medical Case Reports 5 (2021): 466-467.
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Lung adenocarcinoma; ALK gene rearrangement; Alectinib; Hepatitis B virus reactivation
Lung adenocarcinoma articles; ALK gene rearrangement articles; Alectinib articles; Hepatitis B virus reactivation articles
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Article Details
1. Background
Alectinib 600 mg twice daily is the first-line treatment for advanced lung adenocarcinoma with ALK gene rearrangement [1]. Elevation of liver enzymes up to acute hepatitis is a known side effect of the drug [2]. Here, we report a case of hepatitis B virus reactivation in a patient treated with alectinib.
2. Case Report
A 50-year-old man was hospitalized for left hemiplegia on day 1. The radiological assessment revealed a pulmonary mass in the left lower lobe along with secondary brain and kidney lesions. Biopsies showed an adenocarcinoma of the lung with ALK gene rearrangement. Treatment with alectinib was initiated on day 131. After two months of treatment, there was a near-complete regression of neurological disorders and the radiological reassessment showed a partial response based on RECIST criteria. The patient was readmitted to hospital on day 208 (two and a half months after the start of treatment) following the appearance of grade 3 cytolysis. Liver ultrasound did not reveal any abnormalities. Treatment with alectinib was discontinued based on current recommendations. Despite discontinuation of treatment, the hepatic assessment showed grade 4 cytolysis in association with cholestasis and an increase in conjugated bilirubin (aspartate aminotransferase 16N, alanine aminotransferase 19N, gamma-glutamyltranspeptidase 3N, slightly increased alkaline phosphatase, and conjugated bilirubin 2N). Pre-therapy assessment showed positive hepatitis B serology with positive anti-HBc Ac and HBsAg, but revealed no hepatic abnormalities. The hepatitis B viral load was assessed and was found to be very high (3.56^7 IU/ml). Treatment with tenofovir was initiated.
3. Discussion
Several cases of hepatitis B virus reactivation due to the introduction of immunosuppressive treatment such as rituximab have been described in the literature [3]. The treatment decision is based on risk stratification. In view of this, many health institutions recommend routine HBsAg and anti-HBc Ac screening before the introduction of immunosuppressive or cytotoxic treatment [4]. To date, no case of hepatitis B virus reactivation has been reported in patients receiving targeted therapy, including alectinib. The present case suggests the need for routine hepatitis B screening before the introduction of alectinib treatment and for prophylactic antiviral treatment in patients with non-active chronic hepatitis B.
References
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- Myint A, Tong MJ, Beaven SW. Reactivation of Hepatitis B Virus: A Review of Clinical Guidelines. Clin Liver Dis (Hoboken) 15 (2020): 162-167.