Ocrelizumab And Hyaluronidase

FDA Drug Information • Also known as: Ocrevus Zunovo

Brand Names: Ocrevus Zunovo
Drug Class: Endoglycosidase [EPC], CD20-directed Cytolytic Antibody [EPC]
Route: SUBCUTANEOUS
Dosage Form: INJECTION, SOLUTION
Product Type: HUMAN PRESCRIPTION DRUG

Description

11 DESCRIPTION Ocrelizumab is a recombinant humanized monoclonal antibody directed against CD20-expressing B-cells. Ocrelizumab is a glycosylated immunoglobulin G1 (IgG1) with a molecular mass of approximately 145 kDa. Hyaluronidase (human recombinant) is an endoglycosidase used to increase the dispersion and absorption of co-administered drugs when administered subcutaneously. It is a glycosylated single-chain protein produced by mammalian (Chinese Hamster Ovary) cells containing a DNA plasmid encoding for a soluble fragment of human hyaluronidase (PH20). Hyaluronidase (human recombinant) has a molecular weight of approximately 61 kDa. OCREVUS ZUNOVO (ocrelizumab and hyaluronidase-ocsq) injection for subcutaneous use is a sterile, preservative-free, clear to slightly opalescent, and colorless to pale brown solution supplied in single-dose vials. Each 23 mL of solution contains 920 mg ocrelizumab, 23,000 units of hyaluronidase (human recombinant), glacial acetic acid (5.5 mg), methionine (34.3 mg), polysorbate 20 (13.8 mg), sodium acetate (30.2 mg), trehalose (1889.5 mg), and water for injection at pH 5.3.

What Is Ocrelizumab And Hyaluronidase Used For?

1 INDICATIONS AND USAGE OCREVUS ZUNOVO is indicated for the treatment of: Relapsing forms of multiple sclerosis (MS), to include clinically isolated syndrome, relapsing-remitting disease, and active secondary progressive disease, in adults Primary progressive MS, in adults OCREVUS ZUNOVO is a CD20-directed cytolytic antibody indicated for the treatment of: Relapsing forms of multiple sclerosis (MS), to include clinically isolated syndrome, relapsing-remitting disease, and active secondary progressive disease, in adults ( 1 ) Primary progressive MS, in adults ( 1 )

Dosage and Administration

2 DOSAGE AND ADMINISTRATION OCREVUS ZUNOVO should be administered by a healthcare professional ( 2.1 ) For subcutaneous use in the abdomen only ( 2.1 ) OCREVUS ZUNOVO has different dosage and administration instructions than intravenous ocrelizumab ( 2.1 ) Before initiating OCREVUS ZUNOVO, screen for Hepatitis B virus and obtain serum quantitative immunoglobulins, aminotransferases, alkaline phosphatase, and bilirubin ( 2.2 ) Pre-medicate orally with dexamethasone (or an equivalent corticosteroid) and an antihistamine (e.g., desloratadine) at least 30 minutes prior to each injection ( 2.3 ) Administer 23 mL of OCREVUS ZUNOVO (920 mg ocrelizumab and 23,000 units hyaluronidase) subcutaneously in the abdomen over approximately 10 minutes every 6 months ( 2.4 ) Monitor patients closely during all injections, for at least one hour after the initial injection, and for at least 15 minutes after subsequent injections ( 2.4 ) 2.1 Important Administration Information OCREVUS ZUNOVO is for subcutaneous use in the abdomen only. OCREVUS ZUNOVO has different dosage and administration instructions than intravenous ocrelizumab. OCREVUS ZUNOVO should be administered via subcutaneous injection by a healthcare professional. 2.2 Assessments Prior to First Dose of OCREVUS ZUNOVO Hepatitis B Virus Screening Prior to initiating ocrelizumab treatment, perform Hepatitis B virus (HBV) screening. OCREVUS ZUNOVO is contraindicated in patients with active HBV confirmed by positive results for HBsAg and anti-HBV tests. For patients who are negative for surface antigen [HBsAg] and positive for HB core antibody [HBcAb+] or are carriers of HBV [HBsAg+], consult liver disease experts before starting and during treatment [see Warnings and Precautions (5.2) ] . Serum Immunoglobulins Prior to initiating ocrelizumab treatment, perform testing for quantitative serum immunoglobulins [see Warnings and Precautions (5.4) ] . For patients with low serum immunoglobulins, consult immunology experts before initiating treatment with ocrelizumab. Vaccinations Because vaccination with live-attenuated or live vaccines is not recommended during treatment and after discontinuation until B-cell repletion, administer all immunizations according to immunization guidelines at least 4 weeks prior to initiation of ocrelizumab treatment for live or live-attenuated vaccines and, whenever possible, at least 2 weeks prior to initiation of ocrelizumab treatment for non-live vaccines [see Warnings and Precautions (5.2) and Clinical Pharmacology (12.2) ] . Liver Function Tests Prior to initiating OCREVUS ZUNOVO, obtain serum aminotransferases (alanine aminotransferase [ALT] and aspartate aminotransferase [AST]), alkaline phosphatase, and bilirubin levels [see Warnings and Precautions (5.7) ] . 2.3 Assessments and Premedication Prior to Every Dose Infection Assessment Prior to every dose of OCREVUS ZUNOVO, determine whether there is an active infection. In case of active infection, delay administration of...

Side Effects (Adverse Reactions)

6 ADVERSE REACTIONS The following serious adverse reactions are discussed in greater detail in other sections of the labeling: Injection Reactions [see Warnings and Precautions (5.1) ] Infections [see Warnings and Precautions (5.2) ] Progressive Multifocal Leukoencephalopathy [see Warnings and Precautions (5.3) ] Reduction in Immunoglobulins [see Warnings and Precautions (5.4) ] Malignancies [see Warnings and Precautions (5.5) ] Immune-Mediated Colitis [see Warnings and Precautions (5.6) ] Liver Injury [see Warnings and Precautions (5.7) ] The most common adverse reactions in patients treated with intravenous ocrelizumab were: RMS (incidence ≥10% and > REBIF ® ): upper respiratory tract infections and infusion reactions ( 6.1 ) PPMS (incidence ≥10% and > placebo): upper respiratory tract infections, infusion reactions, skin infections, and lower respiratory tract infections ( 6.1 ) The most common adverse reaction observed with OCREVUS ZUNOVO in patients with RMS and PPMS was injection reactions (incidence of 49%) ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Genentech at 1-888-835-2555 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical 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 clinical practice. The safety of ocrelizumab has been evaluated in active-controlled clinical trials of ocrelizumab administered intravenously in patients with relapsing forms of MS (RMS) (Study 1 and Study 2) [see Clinical Studies (14.1) ] and primary progressive MS (PPMS) (Study 3) [see Clinical Studies (14.2) ] , and in an open-label, active-controlled trial of OCREVUS ZUNOVO administered subcutaneously in patients with RMS and PPMS (Study 4) [see Clinical Studies (14.3) ] . Adverse Reactions With Ocrelizumab Intravenous in Patients With RMS and PPMS The safety of intravenous ocrelizumab has been evaluated in 1311 patients across the MS clinical studies, which included 825 patients in active-controlled clinical trials in patients with RMS and 486 patients in a placebo-controlled study in patients with PPMS. RMS In active-controlled intravenous ocrelizumab clinical trials (Study 1 and Study 2), 825 patients with RMS received ocrelizumab 600 mg intravenously every 24 weeks (initial treatment was given as two separate 300 mg infusions at Weeks 0 and 2) [see Clinical Studies (14.1) ]. The overall exposure in the 96-week controlled treatment periods was 1448 patient-years. The most common adverse reactions in RMS trials (incidence ≥ 10%) were upper respiratory tract infections and infusion reactions. Table 1 summarizes the adverse reactions that occurred in active-controlled intravenous ocrelizumab RMS trials (Study 1 and Study 2). Table 1 Adverse Reactions in Adult Patients With RMS With an Incidence of at least 5% for Intravenous Ocrelizumab and Higher than REBIF Adverse Reactions Studies 1 and 2 Ocrelizumab 600 mg IV Every 24 Weeks The first dose was given as two separate 300 mg infusions at Weeks 0 and 2. (n=825) % REBIF 44 mcg SQ 3 Times per Week (n=826) % Upper respiratory tract infections 40 33 Infusion reactions 34 10 Depression 8 7 Lower respiratory tract infections 8 5 Back pain 6 5 Herpes virus- associated infections 6 4 Pain in extremity 5 4 PPMS In a placebo-controlled intravenous ocrelizumab clinical trial (Study 3), a total of 486 patients with PPMS received one course of ocrelizumab (600 mg of ocrelizumab administered as two 300 mg infusions two weeks apart) given intravenously every 24 weeks and 239 patients received placebo intravenously [see Clinical Studies (14.2) ]. The overall exposure in the controlled treatment period was 1416 patient-years, with median treatment duration of 3 years. The most common adverse reactions in the PPMS trial (incidence ≥ 10%) were upper respiratory tract...

Drug Interactions

7 DRUG INTERACTIONS 7.1 Immunosuppressive or Immune-Modulating Therapies The concomitant use of OCREVUS ZUNOVO and other immune-modulating or immunosuppressive therapies, including immunosuppressant doses of corticosteroids, is expected to increase the risk of immunosuppression. Consider the risk of additive immune system effects when coadministering immunosuppressive therapies with OCREVUS ZUNOVO. When switching from drugs with prolonged immune effects, such as daclizumab, fingolimod, natalizumab, teriflunomide, or mitoxantrone, consider the duration and mode of action of these drugs because of additive immunosuppressive effects when initiating OCREVUS ZUNOVO [see Warnings and Precautions (5.2) ]. 7.2 Vaccinations A Phase 3b randomized, open-label study examined the concomitant use of intravenous ocrelizumab and several non-live vaccines in adults 18-55 years of age with relapsing forms of MS (68 subjects undergoing treatment with intravenous ocrelizumab at the time of vaccination and 34 subjects not undergoing treatment with intravenous ocrelizumab at the time of vaccination). Concomitant exposure to intravenous ocrelizumab attenuated antibody responses to tetanus toxoid-containing vaccine, pneumococcal polysaccharide, pneumococcal conjugate vaccines, and seasonal inactivated influenza vaccines. The impact of the observed attenuation on vaccine effectiveness in this patient population is unknown. The safety and effectiveness of live or live-attenuated vaccines administered concomitantly with ocrelizumab have not been assessed [see Warnings and Precautions (5.2) ].

Contraindications

4 CONTRAINDICATIONS OCREVUS ZUNOVO is contraindicated in patients with: Active HBV infection [see Dosage and Administration (2.2) and Warnings and Precautions (5.2) ] A history of life-threatening administration reaction to ocrelizumab [see Warnings and Precautions (5.1) ] A history of hypersensitivity to ocrelizumab, hyaluronidase, or any component of OCREVUS ZUNOVO [see Warnings and Precautions (5.1) ] . Active hepatitis B virus infection ( 4 ) History of life-threatening administration reactions to ocrelizumab ( 4 ) History of hypersensitivity to ocrelizumab, hyaluronidase, or to any component of OCREVUS ZUNOVO ( 4 )

Pregnancy and Breastfeeding

8.1 Pregnancy Risk Summary OCREVUS ZUNOVO is a humanized monoclonal antibody of an immunoglobulin G1 subtype and immunoglobulins are known to cross the placental barrier. There are no adequate data on the developmental risk associated with use of OCREVUS ZUNOVO or ocrelizumab-containing products in pregnant women. However, transient peripheral B-cell depletion and lymphocytopenia have been reported in infants born to mothers exposed to other anti-CD20 antibodies during pregnancy. B-cell levels in infants following maternal exposure to OCREVUS ZUNOVO or ocrelizumab-containing products have not been studied in clinical trials. The potential duration of B-cell depletion in such infants, and the impact of B-cell depletion on vaccine safety and effectiveness, is unknown [see Warnings and Precautions (5.2) ] . Following administration of ocrelizumab to pregnant monkeys at doses similar to or greater than those used clinically, increased perinatal mortality, depletion of B-cell populations, and renal, bone marrow, and testicular toxicity were observed in the offspring in the absence of maternal toxicity [see Data ] . In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. The background risk of major birth defects and miscarriage for the indicated population is unknown. Data Animal Data OCREVUS ZUNOVO for subcutaneous injection contains ocrelizumab and hyaluronidase [see Description (11) ]. Ocrelizumab: - Following intravenous administration of ocrelizumab to monkeys during organogenesis (loading doses of 15 or 75 mg/kg on gestation days 20, 21, and 22, followed by weekly doses of 20 or 100 mg/kg), depletion of B-lymphocytes in lymphoid tissue (spleen and lymph nodes) was observed in fetuses at both doses. - Intravenous administration of ocrelizumab (three daily loading doses of 15 or 75 mg/kg, followed by weekly doses of 20 or 100 mg/kg) to pregnant...

How Supplied

16 HOW SUPPLIED/STORAGE AND HANDLING OCREVUS ZUNOVO (ocrelizumab and hyaluronidase-ocsq) injection for subcutaneous use is a sterile, preservative-free, clear to slightly opalescent, and colorless to pale brown solution supplied as a carton containing one 920 mg and 23,000 units/23 mL (40 mg and 1,000 units/mL) single-dose vial (NDC 50242-554-01). Store OCREVUS ZUNOVO vials refrigerated at 2°C to 8°C (36°F to 46°F) in the original carton to protect from light. Do not freeze or shake. If necessary, OCREVUS ZUNOVO can be removed and placed back into the refrigerator. Unopened OCREVUS ZUNOVO vials may be stored in the original carton for a cumulative time of up to 12 hours without refrigeration at a temperature up to 25°C (77°F).

About This Information

This drug information is sourced from FDA-approved labeling via the openFDA database. It is intended for educational and reference purposes only. This is not medical advice. Always consult your healthcare provider before making decisions about medication. Drug information may be updated by the FDA; check with your pharmacist for the most current information.

What are side effects?

Side effects are unwanted reactions that can occur when taking a medication. They range from mild (headache, nausea) to severe (allergic reactions, organ damage). Not everyone experiences side effects, and severity varies. Report any concerning side effects to your doctor.

What are drug interactions?

Drug interactions occur when a medication is affected by another drug, food, or supplement. Interactions can make medications less effective or cause dangerous side effects. Always tell your doctor about all medications and supplements you take.