Advice for healthcare professionals:
- advise patients to report promptly new signs of infection, including fever or respiratory symptoms, and consider discontinuing bendamustine if there are signs of opportunistic infections
- monitor patients for opportunistic infections as well as cardiac, neurological, and respiratory adverse events
- hepatitis B virus (HBV) reactivation has also been reported; monitor known carriers of HBV for signs and symptoms of active HBV infection
- increased mortality (mainly due to opportunistic infections) was observed in recent clinical studies when bendamustine was used in combination treatment outside the approved indications
- report suspected adverse reactions associated with bendamustine to us on a Yellow Card
Bendamustine is indicated for:
first-line treatment of chronic lymphocytic leukaemia (Binet stage B or C) in patients for whom fludarabine combination chemotherapy is not appropriate
indolent non-Hodgkin’s lymphomas as monotherapy in patients, who have progressed during or within 6 months following treatment with rituximab or a rituximab-containing regimen
front-line treatment of multiple myeloma (Durie-Salmon stage II with progression or stage III) in combination with prednisone for patients older than 65 years who are not eligible for autologous stem cell transplantation and who have clinical neuropathy at the time of diagnosis limiting the use of thalidomide or bortezomib-containing treatment
Recent clinical trial findings
In clinical trials of non-approved combination therapies, bendamustine was associated with increased mortality and an unfavourable safety profile when used in combination with rituximab or obinutuzumab.
Deaths were mainly due to infections including bacterial (sepsis, pneumonia) and opportunistic infections such as Pneumocystis jirovecii pneumonia, varicella zoster virus, and cytomegalovirus infection. Some fatal cardiac, neurological, and respiratory toxicities were also reported.
A recent European review of post-marketing data has suggested that the risk of opportunistic infections with bendamustine treatment may be greater than previously recognised.
Consult the revised summary for product characteristics and be aware of updated warnings regarding infections.
Infections include bacterial (sepsis, pneumonia) and opportunistic infections such as Pneumocystis jirovecii pneumonia, varicella zoster virus, and cytomegalovirus infection.
Both the frequency and outcome of infections seem to be highly variable and dependent on the clinical setting. High frequencies of opportunistic infections may be linked to lymphocytopenia and low CD4-positive T-cell counts. Lymphocytopenia (<600 cells per µL) and low CD4-positive T-cell counts (<200 cells per µL) lasting at least 7–9 months after treatment with bendamustine has been reported in a significant portion of patients. Lymphocytopenia and CD4-positive T-cell depletion are thought to be more pronounced when bendamustine is combined with rituximab.
monitor patients for respiratory signs and symptoms throughout treatment
advise patients to report new signs of infection, including fever or respiratory symptoms promptly
consider discontinuing bendamustine if there are signs of opportunistic infections
Hepatitis B virus reactivation
Reactivation of hepatitis B virus in chronic carriers of the virus has been reported after bendamustine. Some cases resulted in acute hepatic failure or a fatal outcome. Closely monitor carriers of hepatitis B virus for signs and symptoms of active infection.
Prescribing off-label or unlicensed medicines
Refer to prescribers’ responsibilities for off-label or unlicensed use of medicines.
Reporting of suspected adverse reactions
Suspected adverse reactions should be reported to us on a Yellow Card including those associated with use outside the licence.
Letter sent to healthcare professionals
Levact (bendamustine), summary of product characteristics
Article citation: Drug Safety Update volume 10 issue 11, July 2017: 2.