Stratevi turned to Mass FX when their client, Ultragenyx, required two videos that explained the complexities of X-linked Hypophosphatemia to physicians who knew the science and to affected kids who needed to be able to explain it to their family and teachers.


  • Concepting
  • Scripting
  • 3D Animation
  • Character Animation
  • Voiceover
  • Music
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Easy enough for the kiddos

XLH is a rare disease and young people who have it need help to explain it to their family, friends and teachers. How do you explain a complex disease to a 12-year old? We decided a metaphor would be the way to go.

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Deep enough for the doctors

But, the physicians needed to understand XLH, too. Being a rare disease, some doctors might need additional information to understand the symptoms they were seeing in XLH patients, so Ultragenyx needed a video that catered to more sophisticated audiences.

xlh doctor 01
xlh patient 02
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What is XLH? for Health Care Providers

Drawing on the science and a more advanced medical animation, the physician video goes deeper into the science of XLH.

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