Jason C.

Jason C.

37 years old

  • Severe hemophilia A
  • Father of four
  • 3x/week prophylaxis with KOVALTRY®

Adolescent and adult dosing for KOVALTRY®:
20 to 40 IU/kg of body weight 2x/week or 3x/week.

Meet Jason C.

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Me as a baby

With my brother

    Growing up

    My brother and I were born 19 months apart and we both have severe hemophilia A. He's older, so I grew up thinking hemophilia was a normal thing. We went to camp together, and it was good to meet people who had something in common with us. We went for many years and made a lot of friends there.

    I was a rebel when I was a teenager. I mean, who wants to stick themselves 3 times a week? Your parents are saying, "Did you do your infusion? Go do it." But at some point it's up to you. When I got older and moved out, I fell off prophy for a while. It wasn't a good idea. Then I met my wife; she's kind of my saving grace. She got me back on track with my prophy regimen.

    Me and my boy

    Day at the beach


    This year, I started on KOVALTRY®. I'm infusing 3 times a week as prophylaxis. Before I started on KOVALTRY®, I looked into the risks associated with KOVALTRY®, including that my body can make antibodies called inhibitors, which may stop KOVALTRY® from working properly (see additional safety information below).

    I've been on KOVALTRY® for about 6 months and I have had 1 knee bleed.

    I work in construction. It's hard work, but I like it. I have four kids: 2 stepkids and 2 of my own, a boy and a girl. My daughter has von Willebrand and hemophilia. I want to be a role model for her, so I try to stay current with the available therapies and stay on treatment as prescribed. Now, I don't mess around with my therapy.

    My ankles and knees give me trouble. I had a total knee replacement on my right knee. My shoulders are bad too. I'm bad all over. I'm a good 'bad example' of why you should take care of yourself.

    "I don't mess around with my therapy, so I stay on treatment as prescribed."


    Family first


    Looking forward

    I stay educated on treatment options, I go to NHF meetings and talk with everyone. I especially like to talk to the teenagers, I say, "Don't fall off. Stay on top of it, you'll be glad you did." I want them all to have it better than I do.

    Justin C
    Justin C, 39 Frequent traveler,
    prophylaxis 3x/week
    Seth P
    Seth P, 33 Avid runner, newly married
    Jason C
    Jason C, 37 Father of four,
    prophylaxis 3x/week

    Join the Conversation!

    Want to share your patient or caregiver story?
    Let us know if you would like to be contacted—your experiences could be featured in KOVALTRY® Conversations.

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    KOVALTRY® is a medicine used to replace clotting factor (Factor VIII or antihemophilic factor) that is missing in people with hemophilia A.

    KOVALTRY is used to treat and control bleeding in adults and children with hemophilia A. KOVALTRY can reduce the number of bleeding episodes in adults and children with hemophilia A when used regularly (prophylaxis). Your healthcare provider may give you KOVALTRY when you have surgery.

    KOVALTRY is not used to treat von Willebrand Disease.


    You should not use KOVALTRY if you are allergic to rodents (like mice and hamsters) or any ingredients in KOVALTRY.

    Tell your healthcare provider if you have heart disease or are at risk for heart disease.

    The common side effects of KOVALTRY are headache, fever, and itchy rash, in addition to inhibitors in patients who were not previously treated or minimally treated with Factor VIII products.

    Your body may make antibodies, called “inhibitors” against KOVALTRY, which may stop KOVALTRY from working properly. If your bleeding is not adequately controlled, it could be due to the development of Factor VIII inhibitors. Consult with your healthcare provider to make sure you are carefully monitored with blood tests for the development of inhibitors to Factor VIII.

    Allergic reactions may occur with KOVALTRY. Call your healthcare provider right away and stop treatment if you get tightness of the chest or throat, dizziness, decrease in blood pressure, and nausea.

    Tell your healthcare provider about any side effect that bothers you or that does not go away.

    Call your healthcare provider right away if bleeding is not controlled after using KOVALTRY.

    For additional important risk and use information, please see full Prescribing Information.

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

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    Bayer, the Bayer Cross, and KOVALTRY are registered trademarks of Bayer.

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    Site Last Modified 02/2021