Lunsumio Velo^™

mosunetuzumab-axgb

Indications & Important Safety Information

What is LUNSUMIO VELO?

LUNSUMIO VELO (mosunetuzumab-axgb) is a prescription medicine used to treat adults with follicular lymphoma whose cancer has come back or did not respond to previous treatment, and who have already received two or more treatments.

It is not known if LUNSUMIO VELO is safe and effective in children.

The conditional approval for this use is based on response rate. There are ongoing studies to establish how well the drug works.

What is the most important information I should know about LUNSUMIO VELO?

LUNSUMIO VELO can cause Cytokine Release Syndrome (CRS), a serious side effect that is common during treatment with LUNSUMIO VELO, and can also be severe or life-threatening.

Get medical help right away if you develop any signs or symptoms of CRS at any time, including:

• fever of 100.4°F (38°C) or higher
• chills
• low blood pressure
• fast or irregular heartbeat
• tiredness or weakness
• difficulty breawthing
• headache
• confusion
• feeling anxious
• dizziness or light-headedness
• nausea
• vomiting

Due to the risk of CRS, you will receive LUNSUMIO VELO on a “step-up dosing schedule.”

• The step-up dosing schedule is when you receive smaller “step-up” doses before receiving higher doses of LUNSUMIO VELO during your first cycle of treatment
• If your dose of LUNSUMIO VELO is delayed for any reason, you may need to repeat the “step-up dosing schedule”
• You may receive medicines to help reduce your risk of CRS before your dose

Your healthcare provider will check you for CRS during treatment with LUNSUMIO VELO and may treat you in a hospital if you develop signs and symptoms of CRS. Your healthcare provider may temporarily stop or completely stop your treatment with LUNSUMIO VELO, if you have severe side effects.

What are the possible side effects of LUNSUMIO VELO?

LUNSUMIO VELO can cause serious side effects, including:

• Neurologic problems. LUNSUMIO VELO can cause serious and life-threatening neurologic problems. Your healthcare provider will check you for neurologic problems during treatment with LUNSUMIO VELO. Your healthcare provider may also refer you to a healthcare provider who specializes in neurologic problems. Tell your healthcare provider right away if you develop any signs or symptoms of neurologic problems during or after treatment with LUNSUMIO VELO, including:
• headache
• numbness and tingling of the arms, legs, hands, or feet
• dizziness
• confusion and disorientation
• difficulty paying attention or understanding things
• forgetting things or forgetting who or where you are
• trouble speaking, reading, or writing
• sleepiness or trouble sleeping
• tremors
• loss of consciousness
• seizures
• muscle problems or muscle weakness
• loss of balance or trouble walking
• tiredness
• Serious infections. LUNSUMIO VELO can cause serious infections that may lead to death. Your healthcare provider will check you for signs and symptoms of infection before and during treatment. Tell your healthcare provider right away if you develop any signs or symptoms of infection during treatment with LUNSUMIO VELO, including:
• fever of 100.4°F (38°C) or higher
• cough
• chest pain
• tiredness
• shortness of breath
• painful rash
• sore throat
• pain during urination
• feeling weak or generally unwell
• Hemophagocytic lymphohistiocytosis (HLH). LUNSUMIO VELO can cause overactivity of the immune system, a condition called hemophagocytic lymphohistiocytosis. HLH can be life-threatening and has led to death in people treated with LUNSUMIO VELO. Your healthcare provider will check you for HLH especially if your CRS lasts longer than expected. Signs and symptoms of HLH include:
• fever
• enlarged spleen
• easy bruising
• low blood cell counts
• liver problems
• Low blood cell counts. Low blood cell counts are common during treatment with LUNSUMIO VELO and can also be serious or severe. Your healthcare provider will check your blood cell counts during treatment with LUNSUMIO VELO. LUNSUMIO VELO can cause the following low blood cell counts:
• low white blood cell counts (lymphopenia and neutropenia). Low white blood cells can increase your risk for infection
• low red blood cell counts (anemia). Low red blood cells can cause tiredness and shortness of breath
• low platelet counts (thrombocytopenia). Low platelet counts can cause bruising or bleeding problems
• Growth in your tumor or worsening of tumor-related problems (tumor flare).  LUNSUMIO VELO can cause serious or severe worsening of your tumor. Tell your healthcare provider if you develop any of these signs or symptoms of tumor flare during your treatment with LUNSUMIO VELO:
• chest pain
• cough
• trouble breathing
• tender or swollen lymph nodes
• pain or swelling at the site of the tumor

Your healthcare provider may temporarily stop or permanently stop treatment with LUNSUMIO VELO if you develop severe side effects.

The most common side effects of LUNSUMIO VELO include: injection site reactions, tiredness, rash, CRS, COVID-19, muscle and joint pain, and diarrhea.

The most common severe abnormal blood test results with LUNSUMIO VELO include: decreased white blood cell counts and increased uric acid levels.

Before receiving LUNSUMIO VELO, tell your healthcare provider about all of your medical conditions, including if you:

• have an infection or have had an infection in the past which lasted a long time or keeps coming back
• have or have had Epstein-Barr Virus
• are pregnant or plan to become pregnant. LUNSUMIO VELO may harm your unborn baby. Tell your healthcare provider right away if you become pregnant or think you may be pregnant during treatment with LUNSUMIO VELO
  Females who are able to become pregnant:
• your healthcare provider should do a pregnancy test before you start treatment with LUNSUMIO VELO
• use an effective method of birth control (contraception) during your treatment and for 3 months after the last dose of LUNSUMIO VELO
• are breastfeeding or plan to breastfeed. It is not known if LUNSUMIO VELO passes into your breast milk. Do not breastfeed during treatment and for 3 months after the last dose of LUNSUMIO VELO

Tell your healthcare provider about all the medicines you take, including prescription and over-the- counter medicines, vitamins, and herbal supplements.

What should I avoid while receiving LUNSUMIO VELO?

Do not drive, operate heavy machinery, or do other dangerous activities if you develop dizziness, confusion, tremors, sleepiness, or any other symptoms that impair consciousness until your signs and symptoms go away. These may be signs and symptoms of CRS or neurologic problems.

These are not all of the possible side effects of LUNSUMIO VELO. Talk to your healthcare provider for more information about the benefits and risks of LUNSUMIO VELO.

You may report side effects to the FDA at (800) FDA-1088 or www.fda.gov/medwatch. You may also report side effects to Genentech at (888) 835-2555.

Please see Important Safety Information, including Serious Side Effects, as well as the LUNSUMIO VELO full Prescribing Information and Medication Guide.