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Thymoglobulin

antithymocute globulin
Used for Organ Transplant
Used for Organ Transplant

Thymoglobulin is an intravenous (IV) medication that you might receive once you get a kidney transplant. It belongs to the drug class called depleting polyclonal antibodies. This medication lowers the activity of your immune system to prevent it from rejecting your new organ. It's typically used in addition to other immunosuppressants. Thymoglobulin can cause many infusion reactions and side effects like fever, chills, headache, low blood cell count, and high potassium levels. Because it weakens your immune system, the medication puts you at high risk for developing infections.

Last reviewed on March 7, 2024
basics-icon

What is Thymoglobulin?

What is Thymoglobulin used for?

  • To prevent rejection in people who've just had a kidney transplant

  • To treat rejection in people who've had a kidney transplant

How Thymoglobulin works

Thymoglobulin is a type of protein called a depleting polyclonal antibody. It works by depleting (or wiping out) the white blood cells (T cells and B cells) that would otherwise work to reject your transplanted organ. This is thought to help prevent and treat organ rejection.

Drug Facts

Common BrandsThymoglobulin
Drug ClassDepleting polyclonal antibody
Controlled Substance ClassificationNot a controlled medication
Generic StatusNo lower-cost generic available
AvailabilityPrescription only
faqs

Frequently asked questions about Thymoglobulin

How long does the Thymoglobulin infusion take?
Your transplant team will run the infusion over at least 6 hours for your first dose of Thymoglobulin. Running the infusion at a slow rate helps lower the chances of side effects or an infusion reaction, such as fever, chills, trouble breathing, nausea, and headache. If you tolerate the first dose well, your next Thymoglobulin infusions can run over a shorter period of time (over at least 4 hours). In addition to the Thymoglobulin infusion itself, your transplant team will give you "premedications" 1 hour before each infusion to help lower your risk for reactions; these medications can include acetaminophen (Tylenol), an antihistamine, and steroids.
Will I have to take Thymoglobulin at home?
No, Thymoglobulin is typically only given in a hospital or healthcare setting under the supervision of a trained healthcare professional. This infusion takes several hours and you'll need to be monitored for any infusion reactions during this time.
What dose of Thymoglobulin do I need?
Your Thymoglobulin dose will depend on your weight (1.5 mg/kg per day). Your transplant specialist will spread your treatment over a span of several days (4 to 7 days to prevent rejection; 7 to 14 days to treat rejection). The team might lower your dose or stop your Thymoglobulin treatment altogether if they see that your blood cells or platelets drop too much.
Is Thymoglobulin the only anti-rejection treatment that I need?
No. Thymoglobulin is approved for use in combination with other forms of immunosuppression to help prevent and treat organ rejection. Different anti-rejection medications have different ways of lowering the activity of your immune system. And using multiple ways of doing so can help lessen the chances that your immune system becomes too active and rejects your new kidney.
What are some side effects of Thymoglobulin?
Some people might have a reaction where the needle goes into the skin, such as discomfort, skin redness, and swelling. Some people might also have reactions to the Thymoglobulin infusion itself, including fever, chills, trouble breathing, nausea, vomiting, and headache. These infusion-related reactions can be a sign that the Thymoglobulin infusion is working but is given too fast; your care team can slow down the infusion to help with this. In addition, Thymoglobulin can cause your blood cell counts to drop to dangerous levels since it works by wiping out these cells in your body. Your transplant team will monitor your side effects and blood work throughout your entire Thymoglobulin treatment course.
How long do the effects of Thymoglobulin last?
The effects of Thymoglobulin can last for several months after you finish your treatment. Once the medication wipes out your cell counts, it takes a while for your body to make new cells and for your cell counts to recover. In a clinical study, about 40% of participants treated with Thymoglobulin had a 50% "rebound" or recovery of their white blood cells 3 months after their last dose. Your risk of rejection is highest during the first 3 months after transplant, so the prolonged effects of Thymoglobulin will help keep your newly-transplanted kidney protected from your immune system.
How can I lower my chances of getting sick after Thymoglobulin?
After your treatment with Thymoglobulin, your transplant team might prescribe anti-infectives for you to take by mouth for a few months to prevent infections. It's just as important to take these medications along with your immunosuppressants because you'll essentially have very little protection against bacteria, viruses, and fungi that are in the environment. Other ways to lower your risk for getting sick after transplant include staying up to date with vaccinations that are recommended by your transplant team, washing your hands often, and avoiding any interactions with sick people. Tell your transplant team right away if you start to have cold or flu symptoms (e.g., fever, cough, sore throat) because an infection can become very serious if it's left untreated.
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alternatives

What are alternatives to Thymoglobulin?

There are a number of medications that your doctor can prescribe in place of Thymoglobulin. Compare a few possible alternatives below.
Thymoglobulin
Used for:
  • To prevent rejection in people who've just had a kidney transplant

  • To treat rejection in people who've had a kidney transplant

Used for:
  • Prevention of kidney transplant rejection

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References

Best studies we found

Bamoulid, J., et al. (2016). Anti-thymocyte globulins in kidney transplantation: Focus on current indications and long-term immunological side effects. Nephrology Dialysis Transplantation.

Genzyme Corporation. (2024). Thymoglobulin (anti-thymocyte globulin)- rabbit injection, powder, lyophilized, for solution [package insert]. DailyMed.

Karuthu, S., et al. (2012). Common infections in kidney transplant recipients. Clinical Journal of the American Society of Nephrology.

View All References (5)

National Human Genome Research Institute. (2024). Lymphocyte.

National Institute of Diabetes and Digestive and Kidney Diseases. (2018). Kidney transplant.

National Kidney Foundation. (2024). Life with a kidney transplant.

Shimabukuro-Vornhagen, A., et al. (2018). Cytokine release syndrome. Journal for Immunotherapy of Cancer.

Thiyagarajan, U. M., et al. (2013). Thymoglobulin and its use in renal transplantation: A review. American Journal of Nephrology.

GoodRx Health has strict sourcing policies and relies on primary sources such as medical organizations, governmental agencies, academic institutions, and peer-reviewed scientific journals. Learn more about how we ensure our content is accurate, thorough, and unbiased by reading our editorial guidelines.
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