
Meet David
“I was diagnosed with hemophilia A at just 3 months old. Throughout my childhood, I longed to be a kid and take the stairs 2 (or even 3) at a time- an activity others didn't have to think twice about. But frequent ankle bleeds led me to walk with a cane at just 14 years old.
In college, I decided to pursue my passion for opera performance. Performing on stage is physically demanding. Because of the high-risk activities I engaged in, I was required to infuse multiple times a week.
After hearing about once-weekly ALTUVIIIO, I immediately asked my doctor about switching treatment. I was excited to learn that ALTUVIIIO prophylaxis was shown to have higher-for-longer factor levels in the near-normal to normal range (over 40%) for most of the week and a 48-hour half-life in adults-which meant I'd have to infuse only once a week.
Offstage, I use my voice for advocacy. I hope that people with hemophilia will work with their doctors to find the right treatment plan for them and their lifestyles, just like I did!"
David is a promotional speaker compensated by Sanofi. Peer stories based on data collected March 2026.
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ALTUVIIIO® [antihemophilic factor (recombinant), Fc-VWF-XTEN fusion protein-ehtl] is an injectable medicine that is used to control and reduce the number of bleeding episodes in people with hemophilia A (congenital Factor VIII deficiency).
Your healthcare provider may give you ALTUVIIIO when you have surgery.
What is the most important information I need to know about ALTUVIIIO?
Do not attempt to give yourself an injection unless you have been taught how by your healthcare provider or hemophilia center. You must carefully follow your healthcare provider’s instructions regarding the dose and schedule for injecting ALTUVIIIO so that your treatment will work best for you.
Who should not use ALTUVIIIO?
You should not use ALTUVIIIO if you have had an allergic reaction to it in the past.
What should I tell my healthcare provider before using ALTUVIIIO?
Tell your healthcare provider if you have had any medical problems, take any medications, including prescription and non-prescription medicines, supplements, or herbal medicines, are breastfeeding, or are pregnant or planning to become pregnant.
What are the possible side effects of ALTUVIIIO?
You can have an allergic reaction to ALTUVIIIO. Call your healthcare provider or emergency department right away if you have any of the following symptoms: difficulty breathing, chest tightness, swelling of the face, rash, or hives.
Your body can also make antibodies called “inhibitors” against ALTUVIIIO. This can stop ALTUVIIIO from working properly. Your healthcare provider may give you blood tests to check for inhibitors.
The common side effects of ALTUVIIIO are headache and joint pain.
These are not the only possible side effects of ALTUVIIIO. Tell your healthcare provider about any side effect that bothers you or does not go away.
Please see full Prescribing Information.
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