BCR-ABL Tyrosine Kinase Inhibitors [GLEEVEC (imatinib mesylate), TASIGNA (nilotinib), BOSULIF (bosutinib), SPRYCEL (dasatinib), ICLUSIG (ponatinib hydrochloride)] - Risk of Hepatitis B Reactivation
- Starting date:
- May 4, 2016
- Posting date:
- May 4, 2016
- Type of communication:
- Dear Healthcare Professional Letter
- Source of recall:
- Health Canada
- Important Safety Information
- Healthcare Professionals, Hospitals, General Public
- Identification number:
Healthcare Professionals (medical oncologists, hematologists, gastroenterologists, oncology nurses, pharmacists) pharmacy associations, medical associations, chiefs of medicine in hospitals, hospital pharmacy chiefs) and patient groups.
- Cases of reactivation of hepatitis B virus (HBV) have occurred in patients who are chronic carriers of HBV after they received BCR-ABL tyrosine kinase inhibitors (TKIs). Some cases of HBV reactivation resulted in acute hepatic failure or fulminant hepatitis leading to liver transplantation or a fatal outcome.
It is recommended that:
- Patients be tested for HBV infection before initiating treatment with BCR-ABL TKIs.
- Experts in liver disease and in the treatment of HBV be consulted promptly before initiating treatment in chronic HBV carriers (including those with active disease) and in patients who test positive for HBV infection during treatment.
- Patients who are carriers of HBV requiring treatment with BCR-ABL TKIs be closely monitored for signs and symptoms of active HBV infection throughout therapy and for several months following termination of therapy.
- The Canadian prescribing and consumer information for BCR-ABL TKIs will be updated to reflect this new safety information.
A recent review of data from clinical trials and postmarketing experience has shown that HBV reactivation can occur in chronic HBV carriers, after they received BCR-ABL TKIs. Some of these cases included acute hepatic failure or fulminant hepatitis leading to liver transplantation or death. These case reports indicate that HBV reactivation may occur at any time during BCR-ABL TKI treatment. Some of these patients had a documented history of hepatitis B. An increase in viral load or positive serology after initiating treatment with a BCR-ABL TKI occurred with HBV reactivation. For other cases, the serologic status at baseline was not known. HBV reactivation is considered to be a class-effect of BCR-ABL TKIs, although the mechanism and the frequency of HBV reactivation during exposure is not known at this time.
|Brand Name||Generic Name||Manufacturer|
|GLEEVEC||imatinib mesylate||Novartis Pharmaceuticals Canada Inc.|
|TASIGNA||nilotinib||Novartis Pharmaceuticals Canada Inc.|
|BOSULIF||bosutinib||Pfizer Canada Inc.|
|SPRYCEL||dasatinib||Bristol-Myers Squibb Canada|
|ICLUSIG||ponatinib hydrochloride||ARIAD Pharmaceuticals, Inc.|
BCR-ABL TKIs are used for the treatment of specific types of blood cancers, including Philadelphia chromosome-positive (Ph+) chronic myelogenous leukemia (CML) and Ph+ acute lymphoblastic leukemia (ALL), and less commonly, other types of cancers.
A recent review of clinical trials and reports received in the post-marketing period as well as published medical literature indicate that cases of HBV reactivation have occurred in patients who are carriers for the virus after receiving BCR-ABL TKIs. In some of the cases, HBV reactivation caused acute liver failure or fulminant hepatitis requiring liver transplantation or death. HBV reactivation occurred at different points during therapy, with cases reported worldwide between three weeks and more than 8 years after starting treatment.
Although no mechanism for HBV reactivation has been identified to date, based on a review of the available evidence, HBV reactivation is considered to be a class effect of BCR-ABL TKIs.
Who is affected
Information for consumers
Talk to your doctor, pharmacist or nurse before taking GLEEVEC (imatinib mesylate), SPRYCEL (dasatinib), TASIGNA (nilotinib), BOSULIF (bosutinib), or ICLUSIG (ponatinib hydrochloride) and let them know if you have ever had or might now have a hepatitis B or liver infection. This is because these drugs could cause hepatitis B virus to become active again, which can be fatal in some cases.
Signs and symptoms of hepatitis include: weight loss, fever, abdominal pain, nausea and vomiting followed by yellowing of the skin (jaundice). It is important to be carefully checked by your doctor for signs of this infection before treatment is started.
Information for health care professionals
Patients should be tested for HBV infection status before initiating treatment with BCR-ABL TKIs. Healthcare professionals should consult experts in liver disease and in the treatment of HBV promptly before starting treatment with BCR-ABL TKIs in patients with positive HBV serology (including those with active disease) and in patients who test positive for HBV infection during treatment.
Healthcare professionals should closely monitor patients who are carriers of HBV, who are currently on or require a BCR-ABL TKI treatment for signs and symptoms of active HBV infection throughout therapy and for several months following termination of therapy. The Canadian Product Monographs will be updated to reflect this new safety information.
Action taken by Health Canada
Health Canada, in collaboration with the appropriate manufacturers including manufacturers of generic versions (see “Products affected”) will update the Canadian prescribing and consumer information.
Report health or safety concerns
Managing marketed health product-related side effects depends on healthcare professionals and consumers reporting them. Any adverse event or other serious or unexpected side effects to BCR-ABL TKIs should be reported to the appropriate manufacturer (see “Products affected”) or to Health Canada.
Novartis Pharmaceuticals Canada Inc.
385 Bouchard Blvd.
Dorval, Québec, H9S 1A9
Pfizer Canada Inc. Canada
17 300 Trans-Canada Highway
Kirkland, Québec, H9J 2M5
2344, boul Alfred-Nobel, suite 300
Saint-Laurent, Quebec, H4S 0A4
ARIAD Pharmaceuticals, Inc.
c/o Paladin Labs Inc.
100 Blvd Alexis-Nihon, Suite 600
Saint-Laurent, Quebec, H4M 2P2
You can report any suspected adverse reactions associated with the use of health products to Health Canada by:
- Calling toll-free at 1-866-234-2345; or
- Visiting MedEffect Canada's Web page on Adverse Reaction Reporting for information on how to report online, by mail or by fax.
For other health product inquiries related to this communication, contact Health Canada at:
Marketed Health Products Directorate
Original signed by
Aamir Shamim Choudry, MD, MBA.
Novartis Pharmaceuticals Canada Inc.
Vratislav Hadrava M.D., Ph.D.
Vice-President and Medical Director
Pfizer Canada Inc.
Babak Abbaszadeh, MD, MBA
Vice President, Medical Affairs
Bristol-Myers Squibb Canada
Jean De Serres MD, M.Sc, MBA
Vice-President Scientific Affairs and Operations
Paladin Labs Inc.