A Research Study in Children With a Low Level of Hormone to Grow. Treatment is Somapacitan Once a Week Compared to Norditropin® Once a Day (REAL4)

Summary

The study compares 2 medicines for children who do not have enough hormone to grow: somapacitan given once a week (a new medicine) and Norditropin® given once a day (the medicine doctors can already prescribe). Researchers will test to see how well somapacitan works. The study will also test if somapacitan is safe. Participants will either get somapacitan or Norditropin® - which treatment participants get, is decided by chance. Both participants and the study doctor will know which treatment participants get. The study will last for 4 years. Participants will attend 19 clinic visits and have 1 phone call with the study doctor.

Timeline

Start

2019-05-20

Primary completion

2021-11-10

Completion

2025-09-30

Publications

• Miller BS, Blair JC, Rasmussen MH, Frystyk J, Lemminger AK, Maniatis A, Mori J, Bottcher V, Kim HS, Polak M, Horikawa R. Efficacy, safety, and insulin-like growth factor I of weekly somapacitan in children with growth hormone deficiency: 3-year results from REAL4. Eur J Endocrinol. 2025 Apr 30;192(5):651-661. doi: 10.1093/ejendo/lvaf096.
• Mori J, Ohata Y, Fujisawa Y, Sato Y, Rohrich S, Rasmussen MH, Bang RB, Horikawa R. Effective growth hormone replacement with once-weekly somapacitan in Japanese children with growth hormone deficiency: Results from REAL4, a phase 3 clinical trial. Clin Endocrinol (Oxf). 2024 Apr;100(4):389-398. doi: 10.1111/cen.15025. Epub 2024 Feb 18.
• Miller BS, Blair JC, Rasmussen MH, Maniatis A, Mori J, Bottcher V, Kim HS, Bang RB, Polak M, Horikawa R. Effective GH Replacement With Somapacitan in Children With GHD: REAL4 2-year Results and After Switch From Daily GH. J Clin Endocrinol Metab. 2023 Nov 17;108(12):3090-3099. doi: 10.1210/clinem/dgad394.
• Miller BS, Blair JC, Rasmussen MH, Maniatis A, Kildemoes RJ, Mori J, Polak M, Bang RB, Bottcher V, Stagi S, Horikawa R. Weekly Somapacitan is Effective and Well Tolerated in Children With GH Deficiency: The Randomized Phase 3 REAL4 Trial. J Clin Endocrinol Metab. 2022 Nov 25;107(12):3378-3388. doi: 10.1210/clinem/dgac513.

Drugs

Indications