Experiencing Adverse Reactions from Gazyva? Here's Your Coping Strategy
Gazyva, a brand-name intravenous (IV) infusion, is used for certain types of leukemia and lymphoma. While it has proven effective in treating these conditions, it comes with potential long-term side effects that patients should be aware of.
Infections
One of the significant long-term risks associated with Gazyva is the susceptibility to severe infections. Patients may experience infections such as pneumonia or reactivation of the hepatitis B virus if previously infected. There is also a risk of a serious brain infection called progressive multifocal leukoencephalopathy (PML) 1.
Low Blood Cell Counts
Long-term decreased levels of white blood cells (neutropenia) can cause recurrent infections and fatigue. Low platelets (thrombocytopenia) increase bleeding risks, such as easy bruising or nosebleeds 1, 2.
Tumor Lysis Syndrome
Although more common in the short term, metabolic complications such as tumor lysis syndrome (harmful buildup of substances from rapidly dying cancer cells) may have lasting effects like muscle cramps or irregular heartbeat if not managed promptly 1.
Infusion Reactions
Severe allergic or infusion-related reactions can occur but are generally early events; premedication helps reduce these risks 1, 5.
Preventive Measures
To manage these risks, extra care should be taken to avoid infections, and up-to-date vaccines should be received. If you have any symptoms of PML during Gazyva treatment, contact your doctor right away 1.
To help prevent tumor lysis syndrome, it's important to drink plenty of fluids during treatment with Gazyva 1.
Cytopenias
In clinical trials and real-world use, cytopenias (especially neutropenia and thrombocytopenia) are common and significant side effects that can persist, requiring interventions such as growth factor support or dose adjustments 2, 3.
Other Side Effects
Gazyva does not cause hair loss, but it is given in combination with chemotherapy which often causes hair loss. Infusion reactions are common with the first dose of Gazyva, but less common and less severe with subsequent doses. Symptoms of mild infusion reactions may include nausea or vomiting, fatigue, chest discomfort, dizziness, diarrhea, skin rash, flushing, headache, fever, chills. Symptoms of severe infusion reactions may include throat irritation or swelling, shortness of breath, trouble breathing, increased or decreased blood pressure, increased heart rate 1, 5.
Important Warnings
Gazyva has a boxed warning about a risk of hepatitis B reactivation. If you've ever had hepatitis B, be sure to tell your doctor before you have treatment with Gazyva 1.
Gazyva can increase your risk of developing PML. This is a serious condition caused by a rare viral infection of the brain. In some cases, it can be fatal 1.
Precautions
If you're pregnant or planning to become pregnant, talk with your doctor about the risks and benefits of Gazyva. If you receive Gazyva during pregnancy, your doctor should not give your child live vaccines until their immune system is strong enough 1.
You should not breastfeed while you receive Gazyva and for 6 months after your last dose. This is because the drug may pass into breast milk 1.
If you drink alcohol, talk with your doctor about how much, if any, is safe to consume with Gazyva. Drinking alcohol during Gazyva treatment may worsen side effects such as diarrhea, headache, dizziness, and fatigue 1.
Conclusion
The long-term toxicity profile of Gazyva aligns with its immunosuppressive mechanism and necessitates careful monitoring for infections and blood cell levels throughout and after treatment. Serious neurological complications are very rare but possible. Patients on Gazyva should have ongoing surveillance for infections and blood counts as part of long-term management.
- Patients undergoing treatment with Gazyva should be watchful for signs of progressive multifocal leukoencephalopathy (PML), a serious brain infection, and contact their doctor promptly if any symptoms occur.
- Cytopenias, particularly neutropenia and thrombocytopenia, are frequently observed as significant side effects during Gazyva treatment and may persist, necessitating supportive measures such as growth factor support or dose adjustments.
- While Gazyva treatment does not lead to hair loss, it is typically administered in combination with chemotherapy, which commonly causes hair loss.
