WARNING: RISK OF ANAPHYLAXIS, HYPERSENSITIVITY AND IMMUNE-MEDIATED REACTIONS, and RISK OF CARDIORESPIRATORY FAILURE Life-threatening anaphylactic reactions and severe hypersensitivity reactions, presenting as respiratory distress, hypoxia, apnea, dyspnea, bradycardia, tachycardia, bronchospasm, throat tightness, hypotension, angioedema (including tongue or lip swelling, periorbital edema), and urticaria, have occurred in some patients during and after alglucosidase alfa infusions. Immune-mediated reactions presenting as proteinuria, nephrotic syndrome, and necrotizing skin lesions have occurred in some patients following alglucosidase alfa treatment. View more


Sanofi Genzyme is committed to working with healthcare providers, as well as with public and private payers, to help secure access to treatment for patients who may benefit from Lumizyme® (alglucosidase alfa).

Treatment with Lumizyme is a covered benefit under most major insurance plans as well as Medicare and Medicaid. In this section you'll find an overview of Lumizyme coverage under different kinds of insurers, information on potential requirements, and other issues to consider when reviewing your patients' plans.

Billing Resources

The information provided here is not comprehensive and is subject to change. Providers ultimately retain responsibility for determining reimbursement and insurance issues related to their patients, so it's important for you to understand the details of your patients' specific coverage and benefits. Sanofi Genzyme is not responsible for failure of a provider to obtain reimbursement.

In addition to the reimbursement expertise provided by CareConnectPSS® Case Managers to patients, Sanofi Genzyme also offers the following downloadable resources to help guide you through the process:

Lumizyme Billing Guide

To bill for Lumizyme therapy, you must use the appropriate codes. The billing procedures may vary according to the site of service or third-party payer guidelines. Please reference this billing guide.

Letter of Intent to Treat

The Letter of Intent (LOI) is a model letter indicating intent to treat a patient living with Pompe disease with Lumizyme. You may customize it to a patient’s specific requirements. See Lumizyme Billing Guide below.

Statement of Medical Necessity

The Statement of Medical Necessity (SMN) is a form you can use to document a patient’s clinical history of Pompe disease, diagnosis, signs and symptoms. The SMN allows you to demonstrate that Lumizyme is medically necessary for the treatment of Pompe disease in a particular patient. See Lumizyme Billing Guide below. 


Full Prescribing Information (PDF)

Lumizyme Fact Sheet (PDF)


LUMIZYME® (alglucosidase alfa) is an enzyme replacement therapy for patients with Pompe disease (acid α-glucosidase (GAA) deficiency).

Important Safety Information

WARNING: Risk of anaphylaxis, hypersensitivity and immune-mediated reactions, and risk of cardiorespiratory failure

  • If you or your child is taking Lumizyme, you should know that severe and potentially life-threatening allergic-type reactions known as anaphylaxis or severe hypersensitivity reactions, and other severe reactions related to the immune system may occur during and after Lumizyme treatment. Reactions may include, for example, kidney dysfunction, extreme difficulty breathing, shallow breathing, abnormal heart rate, low blood pressure, or throat tightness (including face, tongue and lip swelling) and skin lesions.
  • If you or your child experiences these severe reactions, you may require close observation during and after Lumizyme administration. You should discuss with your physician the signs and symptoms of anaphylaxis and hypersensitivity reactions and seek immediate medical care should they occur. Anaphylaxis or severe hypersensitivity reactions are potentially very dangerous. If such a reaction is severe enough, your doctor may decide to immediately discontinue the infusion and provide immediate medical care. Appropriate medical support measures may be administered when you are being infused with Lumizyme.
  • If your child has a current respiratory condition or illness and has compromised breathing or heart function due to Pompe disease, there may be risk of acute worsening of heart and/or lung function with Lumizyme due to the fluid of the infusion, and your doctor may decide that close observation during and after Lumizyme administration may be necessary.

Warnings and precautions

Anaphylaxis and Hypersensitivity Reactions: Life-threatening anaphylaxis and hypersensitivity reactions have been observed in some patients during and after treatment with alglucosidase alfa. If such a reaction is severe enough, your doctor may decide to immediately discontinue the infusion and provide you with immediate medical care. Appropriate medical support and monitoring measures should be available during infusion.

Immune-Mediated Reactions: You or your child may be monitored for the development of systemic immune-mediated reactions while receiving Lumizyme. If these reactions occur, your doctor may discontinue the infusion and initiate appropriate medical treatment.

Risk of Acute Cardiorespiratory Failure: Infant Pompe patients with heart or breathing problems who are experiencing an acute respiratory condition may be at risk for increasing the seriousness of these problems as a result of Lumizyme administration due to the infusion fluid, and your child’s doctor may require additional monitoring for these infants.

Risk of Cardiac Arrhythmia and Sudden Cardiac Death during General Anesthesia for Central Venous Catheter Placement: Caution should be used when administering general anesthesia for the placement of a central venous catheter intended for Lumizyme infusion. Ventricular arrhythmias and slow heart rate resulting in cardiac arrest or death have been observed in infant Pompe patients with cardiac hypertrophy during general anesthesia for central venous catheter placement. Appropriate medical support and monitoring measures should be available during infusion.

Risk of Antibody Development: Since Lumizyme is a protein, it is possible that patients receiving it develop antibodies. Some patients who develop high IgG antibody levels that last for a while may have reduced response to Lumizyme. Patients should be monitored for IgG antibody formation every 3 months for 2 years and then annually thereafter.

Adverse reactions

The most frequently reported adverse reactions during Lumizyme studies in patients were allergy reactions and included: anaphylaxis, rash, fever, flushing/feeling hot, hives, headache, excessive sweating, nausea, cough, less oxygen in the blood, fast heart rate, rapid breathing, chest discomfort, dizziness, muscle twitching, agitation, bluish or purple skin, redness of skin, high blood pressure/increased blood pressure, facial paleness, chills, tremor, vomiting, fatigue, and muscle pain.

Special populations

If you are pregnant, you should use Lumizyme only if your doctor has determined that its use outweighs any risks to your unborn child.

Please see the Full Prescribing Information for complete details, including boxed WARNING.