XTEND-Kids is the first assessment of once-weekly ALTUVOCT® prophylaxis in previously treated children Results indicate highly effective bleed protection in children under 12 years of age with severe haemophilia A STOCKHOLM, July 18, 2024 /PRNewswire/ -- Sobi® today announced the publication of full results from the Phase 3 XTEND-Kids study in The New England Journal of Medicine (NEJM) confirming the safety and efficacy profile of ALTUVOCT® (efanesoctocog alfa), in children younger than 12 years old with ...