The only recombinant therapy for congenital factor XIII (FXIII) A-subunit deficiency1

Tretten® is an injectable product used to prevent bleeding in adults and children who have congenital FXIII A-subunit deficiency. It does this by maintaining the body's FXIII activity levels, helping to make clots stronger and less likely to dissolve.

Young man, living with factor XIII A-subunit deficiency, seated on an outdoor balcony while reading


Andy has congenital factor XIII deficiency

Funnel filtering liquid

Different by design

Before Tretten®, all products for congenital FXIII A-subunit deficiency were made from plasma or blood products.

Tretten® is different because it is recombinant, which means it was made in a laboratory without any human or animal materials. It was designed to act just like the body’s natural factor XIII A-subunit as it helps form stable clots.

Calendar

Proven safe and effective in clinical trials

In clinical trials, Tretten® was:

  • Shown to be safe and effective when used monthly
  • Effective in reducing the rate of bleeding

Fast once-monthly, low-volume infusiona

With up to 15 times less volume per infusion, Tretten® takes under 2 minutes once every 28 days to infuse—less than 26 minutes per year.

Up to 15x less volumeb

Up to 3 mL

Tretten®

Up to 43 mL

Plasma-derived factor XIII concentratec

Up to 7x faster infusionb

Up to 1.5 minutes

Tretten®

Up to 11 minutes

Plasma-derived factor XIII concentratec


aIn people with congenital factor XIII A-subunit deficiency.
bDosages based on a 70-kg (154-lb) person infusing 35 IU/kg from a nominally 2500-IU vial of Tretten® at 2 mL/minute or 40 IU/kg from a 1300-IU vial of plasma-derived factor XIII concentrate at 4 mL/minute.
cBased on Corifact® Prescribing Information.

Tretten®—purely because you are one in a million

Molecule icon

The only recombinant therapy
for congenital factor XIII
A-subunit deficiency

Low ABR

Proven safe and effective in clinical trials

28 days

Convenient once-monthly,
low-volume prophylaxisa

ABR=annualized bleeding rate.

Conversation bubbles

Connect with a local representative

Simply enter your zip code to find a local Novo Nordisk rep.

Important Safety Information

Who should not use Tretten®?

  • You should not use Tretten® if you have ever had allergic (hypersensitivity) reactions, including severe, whole body reaction (anaphylaxis) to Tretten® or any of the ingredients.

What should I tell my healthcare provider before Tretten® is given?

  • Tell your healthcare provider about all of your medical conditions, including if you are pregnant, think you may be pregnant or planning to become pregnant, are breast feeding, or have a history of blood clots.
  • Tell your healthcare provider and pharmacist about all of the medicines you take, including all prescription and non-prescription medicines such as over-the-counter medicines, supplements, or herbal remedies.

Indications and Usage

What is Tretten® (Coagulation Factor XIII A-Subunit [Recombinant])?

  • Tretten® is an injectable medicine used to prevent bleeding in adults and children who have congenital Factor XIII (FXIII) A-subunit deficiency.
  • Tretten® is not for use in patients with congenital Factor XIII B-subunit deficiency.

Important Safety Information (cont'd)

What are the possible side effects of Tretten®?

  • Call your healthcare provider or go to the emergency department right away if you have any of the following symptoms after using Tretten®:
    • Signs of allergic reaction including shortness of breath, rash, itching (pruritus), redness of the skin (erythema), or fainting/dizziness.
    • Signs of a blood clot including pain, swelling, warmth, redness, or a lump in your legs or arms, chest pain, or sudden severe headache and/or loss of consciousness or function.
    • Unexpected bleeding.
  • Other possible side effects may include pain in your arms or legs, headache, and pain at the injection site.
  • These are not all the possible side effects of Tretten®. Tell your healthcare provider about any side effect that bothers you or that does not go away.

Please click here for Tretten® Prescribing Information.

Tretten® is a prescription medication.

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch, or call 1-800-FDA-1088.