1. For the first-line treatment of CLL
    in combination with chlorambucil


    The first approved FDA-designated breakthrough therapy

    Download the full Prescribing Information


GAZYVA® (obinutuzumab), in combination with chlorambucil, is indicated for the treatment of patients with previously untreated chronic lymphocytic leukemia (CLL).



  • Hepatitis B Virus (HBV) reactivation, in some cases resulting in fulminant hepatitis, hepatic failure, and death, can occur in patients receiving CD20-directed cytolytic antibodies, including GAZYVA. Screen all patients for HBV infection before treatment initiation. Monitor HBV positive patients during and after treatment with GAZYVA. Discontinue GAZYVA and concomitant medications in the event of HBV reactivation
  • Progressive Multifocal Leukoencephalopathy (PML) including fatal PML, can occur in patients receiving GAZYVA
Hepatitis B Virus Reactivation
  • Hepatitis B virus (HBV) reactivation, in some cases resulting in fulminant hepatitis, hepatic failure, and death, can occur in patients treated with anti-CD20 antibodies, including GAZYVA. HBV reactivation has been reported in patients who are hepatitis B surface antigen (HBsAg) positive and also in patients who are HBsAg negative but are hepatitis B core antibody (anti-HBc) positive. Reactivation has also occurred in patients who appear to have resolved hepatitis B infection (i.e., HBsAg negative, anti-HBc positive, and hepatitis B surface antibody [anti-HBs] positive)
  • HBV reactivation is defined as an abrupt increase in HBV replication manifesting as a rapid increase in serum HBV DNA level, or detection of HBsAg in a person who was previously HBsAg negative and anti-HBc positive. Reactivation of HBV replication is often followed by hepatitis, i.e., increase in transaminase levels and, in severe cases, increase in bilirubin levels, liver failure, and death
  • Screen all patients for HBV infection by measuring HBsAg and anti-HBc before initiating treatment with GAZYVA. For patients who show evidence of hepatitis B infection (HBsAg positive [regardless of antibody status] or HBsAg negative but anti-HBc positive), consult physicians with expertise in managing hepatitis B regarding monitoring and consideration for HBV antiviral therapy
  • Monitor patients with evidence of current or prior HBV infection for clinical and laboratory signs of hepatitis or HBV reactivation during and for several months following treatment with GAZYVA
  • In patients who develop reactivation of HBV while receiving GAZYVA, immediately discontinue GAZYVA and any concomitant chemotherapy, and institute appropriate treatment. Resumption of GAZYVA in patients whose HBV reactivation resolves should be discussed with physicians with expertise in managing hepatitis B. Insufficient data exist regarding the safety of resuming GAZYVA in patients who develop HBV reactivation
Progressive Multifocal Leukoencephalopathy (PML)
  • JC virus infection resulting in PML, which can be fatal, was observed in patients treated with GAZYVA. Consider the diagnosis of PML in any patient presenting with new onset or changes to preexisting neurologic manifestations. Evaluation of PML includes, but is not limited to, consultation with a neurologist, brain MRI, and lumbar puncture. Discontinue GAZYVA therapy and consider discontinuation or reduction of any concomitant chemotherapy or immunosuppressive therapy in patients who develop PML
Infusion Reactions
  • GAZYVA can cause severe and life-threatening infusion reactions. Symptoms may include hypotension, tachycardia, dyspnea, and respiratory symptoms. Other common symptoms include nausea, vomiting, diarrhea, hypertension, flushing, headache, pyrexia, and chills
  • Premedicate patients before each infusion. Closely monitor patients during the entire infusion. Infusion reactions within 24 hours of receiving GAZYVA have occurred
  • For patients with any Grade 4 infusion reactions, including but not limited to anaphylaxis, acute life-threatening respiratory symptoms, or other life-threatening infusion reaction: Stop the GAZYVA infusion. Permanently discontinue GAZYVA therapy
  • For patients with Grade 1, 2, or 3 infusion reactions: Interrupt GAZYVA for Grade 3 reactions until resolution of symptoms. Interrupt or reduce the rate of the infusion for Grade 1 or 2 reactions and manage symptoms
  • For patients with preexisting cardiac or pulmonary conditions, monitor more frequently throughout the infusion and the post-infusion period since they may be at greater risk of experiencing more severe reactions. Hypotension may occur as part of the GAZYVA infusion reaction. Consider withholding antihypertensive treatments for 12 hours prior to and during each GAZYVA infusion, and for the first hour after administration until blood pressure is stable. For patients at increased risk of hypertensive crisis, consider the benefits versus the risks of withholding their hypertensive medication
Tumor Lysis Syndrome (TLS)
  • Acute renal failure, hyperkalemia, hypocalcemia, hyperuricemia, and/or hyperphosphatemia from TLS can occur within 12-24 hours after the first infusion. Patients with high tumor burden and/or high circulating lymphocyte count (>25 x 109/L) are at greater risk for TLS and should receive appropriate tumor lysis prophylaxis with anti-hyperuricemics (e.g., allopurinol) and hydration beginning 12-24 hours prior to the infusion of GAZYVA. For treatment of TLS, correct electrolyte abnormalities, monitor renal function and fluid balance, and administer supportive care, including dialysis, as indicated
  • Serious bacterial, fungal, and new or reactivated viral infections can occur during and following GAZYVA therapy. Do not administer GAZYVA to patients with an active infection. Patients with a history of recurring or chronic infections may be at increased risk of infection
  • GAZYVA, in combination with chlorambucil, caused Grade 3 or 4 neutropenia in 34% of patients. Patients with severe neutropenia should be monitored frequently with regular laboratory tests until resolution. Anticipate, evaluate, and treat any symptoms or signs of developing infection
  • Neutropenia can also be of late onset (occurring more than 28 days after completion of treatment) and/or prolonged (lasting longer than 28 days)
  • Patients with neutropenia are strongly recommended to receive antimicrobial prophylaxis throughout the treatment period. Antiviral and antifungal prophylaxis should be considered
  • GAZYVA in combination with chlorambucil caused Grade 3/4 thrombocytopenia in 11% of trial patients. In 5% of patients, GAZYVA caused acute thrombocytopenia occurring within 24 hours after the GAZYVA infusion. Fatal hemorrhagic events during Cycle 1 have been reported. Monitor patients frequently for thrombocytopenia and hemorrhagic events, especially in Cycle 1
  • In patients with Grade 3 or 4 thrombocytopenia, monitor platelet counts more frequently until resolution and consider subsequent dose delays of GAZYVA and chlorambucil or dose reductions of chlorambucil. Transfusion of blood products may be necessary. Consider withholding concomitant medications which may increase bleeding risk
  • The safety and efficacy of immunization with live or attenuated viral vaccines during or following GAZYVA therapy has not been studied. Immunization with live virus vaccines is not recommended during treatment and until B-cell recovery
Pregnancy: Category C
  • Women of childbearing potential should use effective contraception while receiving GAZYVA and for 12 months following treatment
Additional Important Safety Information
  • The most common adverse reactions (incidence ≥10%) were: infusion reactions (69%), neutropenia (40%), thrombocytopenia (15%), anemia (12%), pyrexia (10%), cough (10%), and musculoskeletal disorders (17%)
  • Grade 3/4 adverse reactions were: infusion reactions (21%), neutropenia (34%), thrombocytopenia (11%), anemia (4%), leukopenia (5%), and pyrexia (<1%)

You are encouraged to report side effects to Genentech and the FDA. You may contact Genentech by calling 1-888-835-2555. You may contact the FDA by visiting www.fda.gov/medwatch, or calling 1-800-FDA-1088.

Please see the accompanying full Prescribing Information for additional Important Safety Information, including Boxed WARNINGS.