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Patient Experiences - Nika and Zander


“A once-weekly dosing schedule has made a huge difference for my son since switching to ALTUVIIIO.”       
 

A tough start 

From the time he was a toddler, my son was on an every-other-day prophylaxis. At age 2, he could identify a bleed, and had multiple breakthrough bleeds monthly. I kept comprehensive records, but was told by our doctor he likely wasn’t having that many bleeds. I felt dismissed, and he was teaching my son not to trust his body.        
 

A new chapter 

With an insurance change, we got a new hematologist. She said we could do better with the number of bleeds. She explained ALTUVIIIO was an option to consider, and provided a lot of information about the potential benefits and side effects. Even so, I was nervous about switching due to inhibitor risk, and because nothing worked well before. My son, however, was excited about ALTUVIIIO. He was interested in a once-weekly schedule. It was important to protect his vein health, but having his factor levels stay higher for longer was a compelling reason to switch treatments. Having a doctor answer all our questions and provide thorough explanations helped a lot. Seeing the data did too. The numbers spoke for themselves!         
 

Experiencing the benefits 

Since my son switched to ALTUVIIIO in August 2023, he has had no spontaneous breakthrough bleeds so far.* And it’s the first time in his life he hasn’t been constantly infusing. He’s as active as he’s always been. Even with 2 broken bones since making the switch, in this instance he only needed one on-demand dose rather than multiple days’ worth on the old product. A once-weekly dosing schedule has made a huge difference for my son.

 

Having the conversation  

With chronic diseases, it’s easy to feel things might not improve. I thought this was just how my son responds to medication. We felt “this is as good as it gets,” until our doctor explained about ALTUVIIIO. I hope other doctors take this approach—willing to share different options, being open about side effects, and providing as much information as possible—to help patients find a treatment that works for them.    

This testimonial reflects one patient’s experience and has not been clinically evaluated. It is not intended to imply typical outcomes or substitute for clinical evidence. Nika and Zander are promotional speakers compensated by Sanofi.  

*Based on data collected in December 2025.

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Indication

ALTUVIIIO® is indicated for use in adults and pediatric patients with hemophilia A (congenital factor VIII deficiency) for:

  • Routine prophylaxis to reduce the frequency of bleeding episodes
  • On-demand treatment and control of bleeding episodes
  • Perioperative management of bleeding
Limitation of Use

ALTUVIIIO is not indicated for the treatment of von Willebrand disease.

Important Safety Information

Contraindications

ALTUVIIIO is contraindicated in patients who have had severe hypersensitivity reactions, including anaphylaxis, to the product or its excipients.

Warnings and Precautions
  • Allergic-type hypersensitivity reactions, including anaphylaxis, have occurred with ALTUVIIIO. Discontinue use of ALTUVIIIO if hypersensitivity reaction occurs and manage symptoms as appropriate.
  • Formation of neutralizing antibodies (inhibitors) to Factor VIII has been reported following administration of ALTUVIIIO. Monitor all patients for the development of Factor VIII inhibitors by appropriate clinical observations and laboratory tests.
  • If assessment of plasma Factor VIII activity is needed, it is recommended to use a validated one-stage clotting assay. The ALTUVIIIO Factor VIII activity level is overestimated by the chromogenic assay and a specific ellagic acid-based aPTT reagent in one-stage clotting assay by approximately 2.5-fold. If these assays are used, divide the result by 2.5 to approximate the patient's ALTUVIIIO Factor VIII activity level.
Adverse Reactions

The most common adverse reactions (>10% of subjects) reported in clinical trials were headache and arthralgia.

Indication

Important Safety Information

© 2026 Sanofi. All rights reserved. All trademarks mentioned are the property of the Sanofi group. MAT-US-2508205-v3.0-08/2026 Last Updated: August 2026