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Generic name: sutimlimab [ soo-TIM-li-mab ]
Brand name: Enjaymo
Dosage form: intravenous solution (jome 1100 mg/22 mL)
Drug class: Selective immunosuppressants

Medically reviewed by on Feb 1, 2023. Written by Cerner Multum.

What is sutimlimab?

Sutimlimab is used to treat hemolysis (breakdown of red blood cells) in adults with cold agglutinin disease (CAD).

Sutimlimab may also be used for purposes not listed in this medication guide.

Sutimlimab side effects

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Some side effects may occur during the injection. Tell your medical caregiver if you feel dizzy, nauseated, light-headed, itchy, sweaty, or have a headache, chest tightness, back pain, trouble breathing, or swelling in your face.

Sutimlimab may cause serious side effects. Call your doctor at once if you have:

Common side effects of sutimlimab may include:

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.


You will need to get vaccinated at least 2 weeks before your first dose of sutimlimab. You may need to get additional vaccines during your treatment with sutimlimab.

Call your doctor at once if you have signs of an infection: fever, severe headache with stiff neck or back, painful urination or urinating more than usual, cough or problems breathing, symptoms similar to the flu, or pain, redness, or swelling of the skin.

Before taking this medicine

You should not use sutimlimab if you are allergic to it or any of its ingredients.

Tell your doctor if you have ever had:

Sutimlimab can weaken your immune system and may interfere with your body's ability to fight infections. Ask a healthcare provider about your individual risk.

Tell your doctor if you are pregnant or plan to become pregnant or breastfeeding or plan to breastfeed.

How is sutimlimab given?

Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed.

Sutimlimab is injected into a vein by a healthcare provider. sutimlimab is usually given over 1 to 2 hours.

You will usually receive a starting dose of sutimlimab, followed by a second dose 1 week later. Two weeks after your second dose, you will receive an infusion every 2 weeks.

You will be watched for 1 to 2 hours to make sure you do not have an allergic reaction.

You will be watched closely after you stop using sutimlimab. If you have CAD, stopping this medicine may cause the breakdown of your red blood cells.

You will need to get vaccinated at least 2 weeks before your first dose of sutimlimab. You may need to get additional vaccines during your treatment with this medicine.

Sutimlimab dosing information

Usual Adult Dose for Hemolytic Anemia:

39 to less than 75 kg:
-Initial dose: 6500 mg IV once a week for the first 2 weeks
-Maintenance dose: 6500 mg IV every 2 weeks thereafter

At least 75 kg:
-Initial dose: 7500 mg IV once a week for the first 2 weeks
-Maintenance dose: 7500 mg IV every 2 weeks thereafter

-This drug should be administered at the recommended dosage regimen time points or within 2 days of these time points.

Use: For the treatment of hemolysis in patients with cold agglutinin disease

What happens if I miss a dose?

Call your doctor for instructions if you miss an appointment for your sutimlimab injection.

What happens if I overdose?

In a medical setting an overdose would be treated quickly.

What should I avoid while receiving sutimlimab?

Follow your doctor's instructions about any restrictions on food, beverages, or activity.

What other drugs will affect sutimlimab?

Other drugs may affect sutimlimab, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell your doctor about all other medicines you use.

Further information

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.