Gazyva obinutuzumab 1000 mg/40mL Injection, Solution, Concentrate
🆔 Identity & classification
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🏷️ RxNorm drug class
This medicine belongs to the CD20-directed Cytolytic Antibody class.
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🏭 Manufacturer & labeler
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🩺 Clinical
- Gazyva is a type of targeted therapy called a monoclonal antibody. It's engineered to attach to a specific protein called CD20 on certain white blood cells and destroy them. Depend...
- What exactly is Gazyva and why has my doctor prescribed it for me?
- Before each infusion, you'll receive pre-medications — usually an antihistamine, acetaminophen, and a steroid — to help prevent infusion reactions. The first infusion tends to take...
- What should I expect during my infusion appointments?
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🧪 Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.
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UNII 4QD397987E
An amino acid used as a buffer and stabilizer in medications. It helps maintain the pH balance and protects the active drug from breaking down during storage and use.
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UNII X573657P6P
Histidine monohydrochloride monohydrate is an amino acid salt used as a buffer in medicines. It helps maintain the proper acidity level of liquid formulations to keep the drug stable and effective.
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UNII LQA7B6G8JG
A synthetic polymer made by combining water-soluble compounds. It acts as a surfactant and solubilizer to help mix oil and water-based ingredients, improving the medicine's texture and how active ingredients dissolve.
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UNII 7YIN7J07X4
A natural sugar derived from plants and microorganisms. It acts as a filler to give the medication bulk and stability, and helps preserve the active ingredient during storage and manufacturing.
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UNII 059QF0KO0R
Water is a liquid solvent that dissolves and mixes ingredients together in liquid medicines, syrups, and injections. It helps distribute the active drug evenly throughout the product.
5 inactive ingredients listed in the exact product block matched to this NDC.
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ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.Inactive ingredient FAQ
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💲 Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per mL | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | Not in the retail survey — common for institutional, discontinued, or low-volume packs. | |
| Medicaid paysCMS SDUD · 12 mo | $167.41 | $6,696.41 / 40 ml |
| Medicare drug plans payPart D · quarterly | No Part D plan price is available for this NDC in our data. | |
| Medicare Part B allowsASP · J9301 | $84.463 / J9301 unit | — |
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🧾 Billing & reimbursement
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🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Gazyva 1000 mg/40mLthis 50242-0070-01 | Genentech, | 1 vial | — | — | FDA listed | — |
Where does this data come from?
⏳ Availability & biosimilar status
Biologics have no small-molecule generics; biosimilar competition is tracked in the FDA Purple Book.
Why the date isn’t exact: Biosimilar timing can change because patents may be challenged, settled, licensed, added or removed, and litigation can move the real date earlier or later.
🛈 What do these terms mean?
- Biologic patent
- A patent the reference product’s maker has publicly listed. A biosimilar generally can’t launch until these expire — unless they’re invalidated or resolved in a settlement.
- Reference-product exclusivity
- A flat 12 years of FDA market protection from the biologic’s first licensure (the BPCIA). No biosimilar can be licensed before it ends, regardless of patents.
- Interchangeable exclusivity
- The first interchangeable biosimilar can earn a period as the only interchangeable version (pharmacists can substitute it without the prescriber).
- Earliest biosimilar (LOE)
- The latest of all the dates above — the soonest a biosimilar can realistically reach the market. Litigation and settlements can move it earlier.
Biologics have no small-molecule “generics” — competition comes from FDA-licensed biosimilars, tracked in the FDA Purple Book.
| Code | What it grants | Expires |
|---|---|---|
| RefProduct | Reference-product exclusivity (12-year, BPCIA) — no biosimilar can be licensed before this date | Nov 1, 2025 |
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🗺️ Medicaid utilization & spend
💊 Medicaid utilization by pack size
📊 Medicare Part D spend CMS · PART D · 2026 (Q1)
📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 50242-0070-01 You're viewing this | 1 VIAL, SINGLE-USE in 1 CARTON (50242-070-01) / 40 mL in 1 VIAL, SINGLE-USE | 2013-11-01 | Active |
| 50242-0070-86 | 1 VIAL, SINGLE-USE in 1 CARTON (50242-070-86) / 40 mL in 1 VIAL, SINGLE-USE | 2013-11-04 | Active |
In Medicaid, this is the most-dispensed pack of this product — about 100% of fills over the last four reported quarters. See all packs ↓
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🧭 About this NDC listing & data coverage
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| NDC identity (package / product / labeler codes) | ✓ Available |
| Labeler | ✓ Available |
| Product & package description | ✓ Available |
| Marketing category & status | ✓ Available |
| Active ingredient / dosage form / route | ✓ Available |
| FDA label (SPL via DailyMed) | ✓ Available |
| Package photos | ✓ Available |
| Inactive ingredients (structured) | ✓ Available |
| NADAC pharmacy acquisition price (CMS) | — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey. |
| Orange Book / therapeutic-equivalence data | ✓ Available |
| HCPCS J-code billing crosswalk | ✓ Available |
| Medicaid utilization (CMS SDUD) | ✓ Available |
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📄 Full prescribing information FDA SPL
🚨 Boxed Warning ▾
WARNING: HEPATITIS B VIRUS REACTIVATION and PROGRESSIVE MULTIFOCAL LEUKOENCEPHALOPATHY 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 [see Warnings and Precautions (5.1) ] . Progressive Multifocal Leukoencephalopathy (PML) including fatal PML, can occur in patients receiving GAZYVA [see Warnings and Precautions (5.2) ] . WARNING: HEPATITIS B VIRUS REACTIVATION and PROGRESSIVE MULTIFOCAL LEUKOENCEPHALOPATHY See full prescribing information for complete boxed warning.
Hepatitis B Virus (HBV) reactivation, in some cases resulting in fulminant hepatitis, hepatic failure, and death. ( 5.1 ) Progressive Multifocal Leukoencephalopathy (PML) resulting in death. ( 5.2 )
🎯 Indications and Usage ▾
1 INDICATIONS AND USAGE GAZYVA is a CD20-directed cytolytic antibody indicated: in combination with chlorambucil, for the treatment of patients with previously untreated chronic lymphocytic leukemia (CLL). ( 1.1 , 14 ) in combination with bendamustine followed by GAZYVA monotherapy, for the treatment of patients with follicular lymphoma (FL)who relapsed after, or are refractory to, a rituximab-containing regimen. ( 1.2 , 14 ) in combination with chemotherapy followed by GAZYVA monotherapy in patients achieving at least a partial remission, for the treatment of adult patients with previously untreated stage II bulky, III or IV follicular lymphoma.
( 1.2 , 14 ) for the treatment of adult patients with active lupus nephritis (LN) who are receiving standard therapy ( 1.3 , 14 )
1.1Chronic Lymphocytic Leukemia (CLL) GAZYVA, in combination with chlorambucil, is indicated for the treatment of patients with previously untreated chronic lymphocytic leukemia.
1.2Follicular Lymphoma (FL) GAZYVA, in combination with bendamustine followed by GAZYVA monotherapy, is indicated for the treatment of patients with follicular lymphoma who relapsed after, or are refractory to, a rituximab-containing regimen . GAZYVA, in combination with chemotherapy followed by GAZYVA monotherapy in patients achieving at least a partial remission, is indicated for the treatment of adult patients with previously untreated stage II bulky, III or IV follicular lymphoma .
1.3Lupus Nephritis (LN) GAZYVA is indicated for the treatment of adult patients with active lupus nephritis who are receiving standard therapy.
⏱️ Dosage and Administration ▾
2 DOSAGE AND ADMINISTRATION Premedicate for infusion-related reactions and tumor lysis syndrome. ( 2.1 , 5.3 , 5.4 ) Administer only as intravenous infusion. Do not administer as an intravenous push or bolus.
( 2.1 ) The recommended dosage for chronic lymphocytic leukemia is 100 mg on day 1 and 900 mg on day 2 of Cycle 1, 1,000 mg on day 8 and 15 of Cycle 1, and 1,000 mg on day 1 of Cycles 2–6. ( 2.2 ) The recommended dosage for follicular lymphoma is 1,000 mg on day 1, 8 and 15 of Cycle 1, 1,000 mg on day 1 of Cycles 2-6 or Cycles 2-8, and then 1,000 mg every 2 months for up to 2 years. ( 2.3 ) The recommended dosage for active lupus nephritis is 1,000 mg at the initial infusion, on Week 2, 24, 26, and every 6 months thereafter.
( 2.4 )
2.1Important Dosing Information Premedicate before each infusion [see Dosage and Administration (2.4) ] . Provide prophylactic hydration and anti-hyperuricemics to patients at high risk of tumor lysis syndrome [see Dosage and Administration (2.4) and Warnings and Precautions (5.4) ]. Administer only as an intravenous infusion through a dedicated line [see Dosage and Administration (2.6) ] .
Do not administer as an intravenous push or bolus. Monitor blood counts at regular intervals. GAZYVA should only be administered by a healthcare professional with appropriate medical support to manage severe infusion-related reactions that can be fatal if they occur [see Warnings and Precautions (5.3) ].
2.2Recommended Dosage for Chronic Lymphocytic Leukemia Each dose of GAZYVA is 1,000 mg administered intravenously with the exception of the first infusions in Cycle 1, which are administered on day 1 (100 mg) and day 2 (900 mg) according to Table 1 . Table 1 Dose of GAZYVA to be Administered During Six 28-Day Treatment Cycles for Patients with CLL Day of treatment cycle Dose of GAZYVA Rate of infusion Cycle 1 (loading doses) Day 1 100 mg Administer at 25 mg/hr over 4 hours. Do not increase the infusion rate.
Day 2 900 mg If no infusion-related reaction (IRR) occurred during the previous infusion, administer at 50 mg/hr. The rate of the infusion can be escalated in increments of 50 mg/hr every 30 minutes to a maximum rate of 400 mg/hr. If an IRR occurred during the previous infusion, administer at 25 mg/hr.
The rate of infusion can be escalated in increments of up to 50 mg/hr every 30 minutes to a maximum rate of 400 mg/hr. Day 8 1,000 mg If no IRR occurred during the previous infusion and the final infusion rate was 100 mg/hr or faster, infusions can be started at a rate of 100 mg/hr and increased by 100 mg/hr increments every 30 minutes to a maximum of 400 mg/hr. If an infusion-related reaction occurred during the previous infusion, administer at 50 mg/hr.
The rate of infusion can be escalated in increments of 50 mg/hr every 30 minutes to a maximum rate of 400 mg/hr. Day 15 1,000 mg Cycles 2 – 6 Day 1 1,000 mg If a planned dose of GAZYVA is missed, administer the missed dose as soon as possible and adjust dosing schedule to maintain the time interval between doses. If appropriate, patients who do not complete the Day 1 Cycle 1 dose may proceed to the Day 2 Cycle 1 dose.
2.3Recommended Dosage for Follicular Lymphoma Each dose of GAZYVA is 1,000 mg administered intravenously according to Table 2 . For patients with relapsed or refractory FL, administer GAZYVA in combination with bendamustine in six 28-day cycles. Patients who achieve stable disease, complete response, or partial response to the initial 6 cycles should continue on GAZYVA 1,000 mg as monotherapy for up to two years.
For patients with previously untreated FL, administer GAZYVA with one of the following chemotherapy regimens: Six 28-day cycles in combination with bendamustine Six 21-day cycles in combination with CHOP, followed by 2 additional 21-day cycles of GAZYVA alone Eight 21-day cycles in combination with CVP Patients with previously untreated FL who achieve a complete response or partial response to the initial 6 or 8 cycles should co…
💊 Dosage Forms and Strengths ▾
3 DOSAGE FORMS AND STRENGTHS Injection: 1,000 mg/40 mL (25 mg/mL) clear, colorless to slightly brown solution in a single-dose vial. Injection: 1,000 mg/40 mL (25 mg/mL) single-dose vial. ( 3 )
⛔ Contraindications ▾
4 CONTRAINDICATIONS GAZYVA is contraindicated in patients with known hypersensitivity reactions (e.g., anaphylaxis) to obinutuzumab or to any of the excipients, or serum sickness with prior obinutuzumab use [see Warnings and Precautions (5.4) ]. GAZYVA is contraindicated in patients with known hypersensitivity reactions (e.g., anaphylaxis) to obinutuzumab or any of the excipients, including serum sickness with prior obinutuzumab use. ( 4 )
⚠️ Warnings and Cautions ▾
5 WARNINGS AND PRECAUTIONS Infusion-Related Reactions : Premedicate patients with glucocorticoid, acetaminophen, and anti-histamine. Monitor patients closely during infusions. Interrupt, reduce rate, or discontinue for infusion-related reactions based on severity.
( 2.1 , 5.3 ) Hypersensitivity Reactions Including Serum Sickness : Discontinue GAZYVA permanently. ( 5.4 ) Tumor Lysis Syndrome : In CLL and FL, premedicate with anti-hyperuricemics and adequate hydration, especially for patients with high tumor burden, high circulating lymphocyte count or renal impairment. Correct electrolyte abnormalities, provide supportive care, and monitor renal function and fluid balance.
( 5.5 ) Serious, Including Fatal, Infections : 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. ( 5.6 ) Neutropenia : In patients with Grade 3 to 4 neutropenia, monitor laboratory tests until resolution and for infection.
Consider dose delays and infection prophylaxis, as appropriate. ( 5.7 ) Thrombocytopenia : Monitor for decreased platelet counts and bleeding. Transfusion may be necessary.
( 5.8 ) Disseminated Intravascular Coagulation : Evaluate cause and monitor for bleeding, thrombosis, and need for supportive care. ( 5.9 ) Immunization : Avoid administration of live virus vaccines during GAZYVA treatment and until B-cell recovery. ( 5.10 ) Embryo-Fetal Toxicity : Can cause fetal harm.
Advise females of reproductive potential of the potential risk to a fetus and use effective contraception. ( 5.11 )
5.1Hepatitis B Virus Reactivation GAZYVA can cause Hepatitis B virus (HBV) 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 such as 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 healthcare providers 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.
HBV reactivation has been reported for other CD20-directed cytolytic antibodies following completion of therapy. 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 healthcare providers with expertise in managing hepatitis B.
Insufficient data exist regarding the safety of resuming GAZYVA in patients who develop HBV reactivation.
5.2Progressive Multifocal Leukoencephalopathy John Cunningham (JC) virus infection resulting in progressive multifocal leukoencephalopathy (PML), which can be fatal, occurred in patients treated with GAZYV…
🤒 Adverse Reactions ▾
6 ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: Hepatitis B virus reactivation [see Warnings and Precautions (5.1) ] Progressive multifocal leukoencephalopathy [see Warnings and Precautions (5.2) ] Infusion-related reactions [see Warnings and Precautions (5.3) ] Hypersensitivity reactions including serum sickness [see Warnings and Precautions (5.4) ] Tumor lysis syndrome [see Warnings and Precautions (5.5) ] Infections [see Warnings and Precautions (5.6) ] Neutropenia [see Warnings and Precautions (5.7) ] Thrombocytopenia [see Warnings and Precautions (5.8) ] Disseminated intravascular coagulation [see Warnings and Precautions (5.9) ] The most common adverse reactions (incidence ≥ 20% and ≥ 2% greater in the GAZYVA treated arm in CLL and NHL, and incidence ≥ 5% in the GAZYVA treated arm in LN) were: Previously untreated CLL : infusion-related reactions and neutropenia.
( 6 ) Relapsed or refractory non-Hodgkin lymphoma (NHL) : infusion-related reactions, fatigue, neutropenia, cough, upper respiratory tract infections, and musculoskeletal pain. ( 6 ) Previously untreated NHL : infusion-related reactions, neutropenia, upper respiratory tract infections, cough, constipation, and diarrhea. ( 6 ) Lupus Nephritis : upper respiratory tract infection, COVID-19, urinary tract infection, bronchitis, pneumonia, infusion-related reactions, and neutropenia.
( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Genentech at 1-888-835-2555 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
6.1Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. Chronic Lymphocytic Leukemia The data below are based on a safety population of 773 previously untreated patients with CLL in the CLL11 study. Patients were treated with chlorambucil alone, GAZYVA in combination with chlorambucil, or rituximab product in combination with chlorambucil.
The Stage 1 analysis compared GAZYVA in combination with chlorambucil vs. chlorambucil alone and Stage 2 compared GAZYVA in combination with chlorambucil vs. rituximab product in combination with chlorambucil. Adverse reactions rates and laboratory abnormalities from the Stage 2 phase are presented below and are consistent with the rates in Stage 1. In addition to the adverse reactions observed in Stage 2, in Stage 1, back pain (5% vs.
2%), anemia (12% vs. 10%) and cough (10% vs. 7%) were observed at a higher incidence in the GAZYVA treated patients.
The incidence of Grade 3 to 4 back pain (< 1% vs. 0%), cough (0% vs. < 1%) and anemia (5% vs. 4%) was similar in both treatment arms.
With regard to laboratory abnormalities, in Stage 1 hyperkalemia (33% vs. 18%), creatinine increased (30% vs. 20%) and alkaline phosphatase increased (18% vs.
11%) were observed at a higher incidence in patients treated with GAZYVA with similar incidences of Grade 3 to 4 abnormalities between the two arms. Patients received three 1,000 mg doses of GAZYVA on the first cycle and a single dose of 1,000 mg once every 28 days for 5 additional cycles in combination with chlorambucil (6 cycles of 28 days each in total). In the last 140 patients enrolled, the first dose of GAZYVA was split between day 1 (100 mg) and day 2 (900 mg) [see Dosage and Administration (2.2) ] .
In total, 81% of patients received all 6 cycles (of 28 days each) of GAZYVA-based therapy. Adverse reactions in ≥ 10% of patients in the GAZYVA containing arm were infusion-related reactions, neutropenia, thrombocytopenia, and diarrhea. The most common Grade 3 to 4 adverse reactions (incidence ≥ 10%) in the GAZYVA containing arm were neutropenia, infusion-related reactions, and thrombocytopenia.
Table 7 Adverse Reactions (Incidence ≥ 5% and ≥ 2% Greater in the GAZYVA Arm) in Patients wi…
👥 Use in Specific Populations ▾
8 USE IN SPECIFIC POPULATIONS Lactation : Advise not to breastfeed. ( 8.1 )
8.1Pregnancy Risk Summary Based on findings from animal studies and its mechanism of action, GAZYVA can cause fetal B-cell depletion [see Clinical Pharmacology (12.1) ] . There are no data with GAZYVA use in pregnant women to inform a drug-associated risk. Monoclonal antibodies are transferred across the placenta.
In animal reproduction studies, weekly intravenous administration of obinutuzumab to pregnant cynomolgus monkeys from day 20 of pregnancy until parturition which includes the period of organogenesis at doses with exposures up to 2.4 times the exposure at the clinical dose of 1,000 mg monthly produced opportunistic infections and immune complex mediated hypersensitivity reactions. No embryo-toxic or teratogenic effects were observed in the monkeys (see Data ) . Advise pregnant women of the potential risk to the fetus.
The background risk of major birth defects and miscarriage for the indicated population is unknown; however, the estimated background risk in the U.S. general population of major birth defects is 2% to 4% and of miscarriage is 15% to 20% of clinically recognized pregnancies. Clinical Considerations Disease-Associated Maternal and/or Embryo/Fetal Risk Pregnant women with systemic lupus erythematosus (SLE) are at increased risk of adverse pregnancy outcomes, including worsening of the underlying disease, premature birth, miscarriage, and intrauterine growth restriction.
Maternal LN increases the risk of hypertension and preeclampsia/eclampsia. Passage of maternal autoantibodies across the placenta may result in adverse neonatal outcomes, including neonatal lupus and congenital heart block. Fetal/Neonatal Adverse Reactions GAZYVA is likely to cause fetal B-cell depletion (see Data ) .
Avoid administering live vaccines to neonates and infants exposed to GAZYVA in utero until B-cell recovery occurs [see Warnings and Precautions (5.11) and Clinical Pharmacology (12.2) ] . Data Animal Data In a pre- and post-natal development study, pregnant cynomolgus monkeys received weekly intravenous doses of 25 or 50 mg/kg obinutuzumab from day 20 of pregnancy until parturition, which includes the period of organogenesis. The high dose results in an exposure (AUC) that is 2.4 times the exposure in patients with CLL at the recommended label dose.
There were no embryo-toxic or teratogenic effects in animals. Secondary opportunistic infections, immune complex mediated hypersensitivity reactions, or a combination of both were observed in exposed dams. When first measured on day 28 postpartum, obinutuzumab was detected in offspring at levels in the range of maternal serum levels on the same day, and B-cells were completely depleted.
The B-cell counts returned to normal levels, and immunologic function was restored within 6 months after birth.
8.2Lactation Risk Summary There is no information regarding the presence of GAZYVA in human milk, the effects on the breastfed child, or the effects on milk production. However, low levels of obinutuzumab were present in the milk of lactating cynomolgus monkeys [see Data ]. Human IgG is known to be present in human milk.
Because of the potential of serious adverse reactions in the breastfed child, advise women not to breastfeed during treatment with GAZYVA and for 6 months after the last dose. Data Obinutuzumab was measured in the milk of lactating cynomolgus monkeys on day 28 postpartum after weekly intravenous administration from day 20 of pregnancy until parturition. Concentrations in milk were approximately 0.04% and 0.13% of concentrations in maternal serum in the 25 and 50 mg/kg groups, respectively.
8.3Females and Males of Reproductive Potential GAZYVA can cause fetal harm when administered to a pregnant woman [see Use in Specific Populations (8.1) ]. Contraception Females Advise females of reproductive potential to use effective contraception during treatment with GAZYVA and for 6 months after the last d…
🤰 Pregnancy ▾
8.1Pregnancy Risk Summary Based on findings from animal studies and its mechanism of action, GAZYVA can cause fetal B-cell depletion [see Clinical Pharmacology (12.1) ] . There are no data with GAZYVA use in pregnant women to inform a drug-associated risk. Monoclonal antibodies are transferred across the placenta.
In animal reproduction studies, weekly intravenous administration of obinutuzumab to pregnant cynomolgus monkeys from day 20 of pregnancy until parturition which includes the period of organogenesis at doses with exposures up to 2.4 times the exposure at the clinical dose of 1,000 mg monthly produced opportunistic infections and immune complex mediated hypersensitivity reactions. No embryo-toxic or teratogenic effects were observed in the monkeys (see Data ) . Advise pregnant women of the potential risk to the fetus.
The background risk of major birth defects and miscarriage for the indicated population is unknown; however, the estimated background risk in the U.S. general population of major birth defects is 2% to 4% and of miscarriage is 15% to 20% of clinically recognized pregnancies. Clinical Considerations Disease-Associated Maternal and/or Embryo/Fetal Risk Pregnant women with systemic lupus erythematosus (SLE) are at increased risk of adverse pregnancy outcomes, including worsening of the underlying disease, premature birth, miscarriage, and intrauterine growth restriction.
Maternal LN increases the risk of hypertension and preeclampsia/eclampsia. Passage of maternal autoantibodies across the placenta may result in adverse neonatal outcomes, including neonatal lupus and congenital heart block. Fetal/Neonatal Adverse Reactions GAZYVA is likely to cause fetal B-cell depletion (see Data ) .
Avoid administering live vaccines to neonates and infants exposed to GAZYVA in utero until B-cell recovery occurs [see Warnings and Precautions (5.11) and Clinical Pharmacology (12.2) ] . Data Animal Data In a pre- and post-natal development study, pregnant cynomolgus monkeys received weekly intravenous doses of 25 or 50 mg/kg obinutuzumab from day 20 of pregnancy until parturition, which includes the period of organogenesis. The high dose results in an exposure (AUC) that is 2.4 times the exposure in patients with CLL at the recommended label dose.
There were no embryo-toxic or teratogenic effects in animals. Secondary opportunistic infections, immune complex mediated hypersensitivity reactions, or a combination of both were observed in exposed dams. When first measured on day 28 postpartum, obinutuzumab was detected in offspring at levels in the range of maternal serum levels on the same day, and B-cells were completely depleted.
The B-cell counts returned to normal levels, and immunologic function was restored within 6 months after birth.
🧒 Pediatric Use ▾
8.4Pediatric Use The safety and effectiveness of GAZYVA in pediatric patients have not been established.
🧓 Geriatric Use ▾
8.5Geriatric Use Chronic Lymphocytic Leukemia Of 336 patients with previously untreated CLL who received GAZYVA in combination with chlorambucil, 81% were 65 years and older, while 46% were 75 and older. Of the patients 75 years and older, 46% experienced serious adverse reactions and 7% experienced adverse reactions leading to death. Of the patients younger than 75, 33% experienced a serious adverse reaction and 2% an adverse reaction leading to death.
No significant differences in efficacy were observed between younger and older patients [see Clinical Studies (14.1) ] . Non-Hodgkin Lymphoma Of 204 patients in GADOLIN with relapsed or refractory NHL treated with GAZYVA plus bendamustine, 44% were 65 and over, while 14% were 75 and over. In patients 65 and over, 55% of patients experienced serious adverse reactions and 28% experienced adverse reactions leading to treatment withdrawal while in patients under 65, 37% and 14% experienced serious adverse reactions and adverse reactions leading to treatment withdrawal, respectively.
No clinically meaningful differences in efficacy were observed between these patients and younger patients in GADOLIN. Of the 691 patients in GALLIUM treated with GAZYVA plus chemotherapy as first-line therapy, 33% were 65 and over, while 7% were 75 and over. Of patients 65 and over, 63% experienced serious adverse reactions and 26% experienced adverse reactions leading to treatment withdrawal, while in patients under 65, 43% experienced serious adverse reactions and 13% had an adverse reaction leading to treatment withdrawal.
No clinically meaningful differences in efficacy were observed between these patients and younger patients in GALLIUM. Lupus Nephritis Clinical studies of GAZYVA in patients with active LN did not include sufficient numbers of patients aged 65 years and older (1 patient) to determine whether they respond differently from younger adult patients.
🆘 Overdosage ▾
10 OVERDOSAGE There has been no experience with overdose in human clinical trials. For patients who experience overdose, treatment should consist of immediate interruption or reduction of GAZYVA and supportive therapy.
🧬 Clinical Pharmacology ▾
12 CLINICAL PHARMACOLOGY
12.1Mechanism of Action Obinutuzumab is a monoclonal antibody that targets the CD20 antigen expressed on the surface of pre-B and mature B lymphocytes. Upon binding to CD20, obinutuzumab mediates B-cell lysis through (1) engagement of immune effector cells, (2) by directly activating intracellular death signaling pathways (direct cell death), and/or (3) activation of the complement cascade. The immune effector cell mechanisms include antibody-dependent cellular cytotoxicity (ADCC) and antibody-dependent cellular phagocytosis.
As an antibody with reduced fucose content, obinutuzumab induces greater ADCC activity than rituximab in vitro using human cancer cell lines. Obinutuzumab also demonstrated an increased ability to induce direct cell death when compared to rituximab. Obinutuzumab binds to FcγRIII using purified proteins with a higher affinity than rituximab.
Obinutuzumab and rituximab bind with similar affinity to overlapping epitopes on CD20.
12.2Pharmacodynamics In patients with CLL, GAZYVA caused CD19 B-cell depletion (defined as CD19 B cell counts < 0.07 × 10 9 /L). Initial CD19 B cell recovery was observed in some patients approximately 9 months after the last GAZYVA dose. At 18 months of follow-up, some patients remain B cell depleted.
Although the depletion of B cells in the peripheral blood is a measurable pharmacodynamic effect, it is not directly correlated with the depletion of B-cells in solid organs or in malignant deposits. B cell depletion has not been shown to be directly correlated to clinical response. In patients with LN (REGENCY study), total peripheral CD19+ B cell levels below the defined threshold of 10 cells/µl were achieved in 99% of patients treated with GAZYVA by Week 4 after treatment initiation and remained below this threshold in 95% of patients at Week 76.
Reductions in circulating naive B, memory B, and plasmablasts/plasma cells were observed by Week 4 and remained low through Week 76 after treatment initiation. Treatment with GAZYVA led to improvements in complement (C3 and C4) and anti-double-stranded DNA antibodies (anti-dsDNA) by Week 4 and Week 12, respectively. These changes were sustained through Week 76.
In patients with low C3 at baseline, normalization of C3 levels occurred in 49% (by Week 12) and in 62% (by Week 76) of patients receiving GAZYVA compared to 33% and 29%, respectively, in the placebo group. In patients with low C4 at baseline, normalization of C4 levels occurred in 75% (by Week 12) and in 88% (by Week 76) of patients receiving GAZYVA compared to 55% and 55%, respectively, in the placebo group. Among patients with positive anti-dsDNA at baseline, 32% and 56% of patients treated with GAZYVA seroconverted by Week 4 and Week 76, respectively, compared with 16% and 16% of patients receiving placebo.
The clinical relevance of the above mentioned pharmacodynamic biomarkers has not been established. Cardiac Electrophysiology The potential effects of GAZYVA on the QTc interval have not been studied.
12.3Pharmacokinetics The pharmacokinetic parameters of obinutuzumab after 100 mg on day 1 and 900 mg on day 2 of Cycle 1, 1,000 mg on day 8 and 15 of Cycle 1, and 1,000 mg on day 1 of Cycles 2-6 for CLL; after 1,000 mg on day 1, 8 and 15 of Cycle 1, 1,000 mg on day 1 of Cycles 2-6 or Cycles 2-8, and then 1,000 mg every 2 months for up to 2 years for NHL; 1,000 mg on day 1, week 2, 24, 26 and every 6 months for up to 76 Weeks for LN are provided in Table 14 . The dosing regimen is within the linear pharmacokinetic behavior of obinutuzumab.
Table 14 Obinutuzumab Pharmacokinetic Parameters PK Measure CLL Induction Cycle 6 of a 28-day cycle; Relapsed or refractory FL First line FL in combination with chemotherapy LN Steady state values GAZYVA + Bendamustine GAZYVA + CHOP or CVP Induction Cycle 8 of a 21-day cycle. Results are presented as geometric mean (% Coefficient of Variation). Cmax, µg/mL 466.3 (35) 553.5 (32) 513.4 (28) 676.4 (30) 463 (18) Ctrough, µ…
🧬 Mechanism of Action ▾
12.1Mechanism of Action Obinutuzumab is a monoclonal antibody that targets the CD20 antigen expressed on the surface of pre-B and mature B lymphocytes. Upon binding to CD20, obinutuzumab mediates B-cell lysis through (1) engagement of immune effector cells, (2) by directly activating intracellular death signaling pathways (direct cell death), and/or (3) activation of the complement cascade. The immune effector cell mechanisms include antibody-dependent cellular cytotoxicity (ADCC) and antibody-dependent cellular phagocytosis.
As an antibody with reduced fucose content, obinutuzumab induces greater ADCC activity than rituximab in vitro using human cancer cell lines. Obinutuzumab also demonstrated an increased ability to induce direct cell death when compared to rituximab. Obinutuzumab binds to FcγRIII using purified proteins with a higher affinity than rituximab.
Obinutuzumab and rituximab bind with similar affinity to overlapping epitopes on CD20.
📦 How Supplied / Storage and Handling ▾
16 HOW SUPPLIED/STORAGE AND HANDLING GAZYVA (obinutuzumab) injection is a clear, colorless to slightly brown, preservative-free solution for intravenous use supplied as 1,000 mg/40 mL (25 mg/mL) in single-dose vials (NDC 50242-070-01). Store at 2°C to 8°C (36°F to 46°F). Do not use beyond expiration date stamped on carton. Protect from light. DO NOT FREEZE. DO NOT SHAKE.
📦 Storage and Handling ▾
Store at 2°C to 8°C (36°F to 46°F). Do not use beyond expiration date stamped on carton. Protect from light. DO NOT FREEZE. DO NOT SHAKE.
📋 Description ▾
11 DESCRIPTION Obinutuzumab is a humanized anti-CD20 monoclonal antibody of the IgG1 subclass. It recognizes a specific epitope of the CD20 molecule found on B cells. The molecular mass of the antibody is approximately 150 kDa.
GAZYVA (obinutuzumab) injection is produced by mammalian cell (CHO) suspension culture. GAZYVA was engineered to have reduced fucose content as compared to a typical IgG1 produced in CHO cells. GAZYVA is a sterile, clear, colorless to slightly brown, preservative-free liquid concentrate for intravenous use.
GAZYVA is supplied at a concentration of 25 mg/mL in 1,000 mg single-dose vials. Each vial contains in 40 mL: 1,000 mg obinutuzumab, L-histidine (57.6 mg), L-histidine hydrochloride monohydrate (89.6 mg), trehalose dihydrate (3632 mg), and poloxamer 188 (8 mg). The pH is 6.0.
💬 Information for Patients ▾
17 PATIENT COUNSELING INFORMATION Infusion-related Reactions Advise patients to seek immediate medical attention if signs and symptoms of infusion-related reactions occur [see Warnings and Precautions (5.3) and Adverse Reactions (6.1 and 6.2) ] . Tumor Lysis Syndrome Advise patients to seek immediate medical attention if symptoms of tumor lysis syndrome occur [see Warnings and Precautions (5.5) and Adverse Reactions (6.1) ] . Infections Advise patients to seek immediate medical attention if signs of an infection occur [see Warnings and Precautions (5.6) and Adverse Reactions (6.1 and 6.2) ] .
Hepatitis B Virus Reactivation Advise patients to seek immediate medical attention if symptoms of hepatitis occur [see Warnings and Precautions (5.1) ]. Advise patients of the need for hepatitis B virus screening and monitoring during treatment with GAZYVA. Progressive Multifocal Leukoencephalopathy Advise patients to seek immediate medical attention if new or changes in neurological symptoms occur [see Warnings and Precautions (5.2) ].
Neutropenia, Thrombocytopenia and Disseminated Intravascular Coagulation Advise patients to seek immediate medical attention if signs and symptoms of bleeding or thrombosis occur . Advise patients of the need for periodic monitoring of blood counts [see Warnings and Precautions (5.7 , 5.8 and 5.9) and Adverse Reactions (6.1 and 6.2) ] . Immunization Advise patients to avoid vaccinations with live viral vaccines [see Warnings and Precautions (5.10) ].
Embryo-Fetal Toxicity Advise pregnant women of potential fetal B-cell depletion. Advise females of reproductive potential to inform their healthcare provider of a known or suspected pregnancy [see Warnings and Precautions (5.11) , Use in Specific Populations (8.1) ] . Contraception Advise females of reproductive potential to use effective contraception during treatment with GAZYVA and for 6 months after the last dose [see Use in Specific Populations (8.3) ].
Lactation Advise women not to breastfeed during treatment with GAZYVA and for 6 months after the last dose [see Use in Specific Populations (8.2) ].