PMID- 28653345 OWN - NLM STAT- MEDLINE DCOM- 20170926 LR - 20220317 IS - 1532-5415 (Electronic) IS - 0002-8614 (Linking) VI - 65 IP - 9 DP - 2017 Sep TI - Treatment of Sarcopenia with Bimagrumab: Results from a Phase II, Randomized, Controlled, Proof-of-Concept Study. PG - 1988-1995 LID - 10.1111/jgs.14927 [doi] AB - OBJECTIVES: To assess the effects of bimagrumab on skeletal muscle mass and function in older adults with sarcopenia and mobility limitations. DESIGN: A 24-week, randomized, double-blind, placebo-controlled, parallel-arm, proof-of-concept study. SETTING: Five centers in the United States. PARTICIPANTS: Community-dwelling adults (N = 40) aged 65 and older with gait speed between 0.4 and 1.0 m/s over 4 m and an appendicular skeletal muscle index of 7.25 kg/m(2) or less for men and 5.67 kg/m(2) or less for women. INTERVENTION: Intravenous bimagrumab 30 mg/kg (n = 19) or placebo (n = 21). MEASUREMENTS: Change from baseline in thigh muscle volume (TMV), subcutaneous and intermuscular fat, appendicular and total lean body mass, grip strength, gait speed, and 6-minute walk distance (6MWD). RESULTS: Thirty-two (80%) participants completed the study. TMV increased by Week 2, was sustained throughout the treatment period, and remained above baseline at the end of study in bimagrumab-treated participants, whereas there was no change with placebo treatment (Week 2: 5.15 +/- 2.19% vs -0.34 +/- 2.59%, P < .001; Week 4: 6.12 +/- 2.56% vs 0.16 +/- 3.42%, P < .001; Week 8: 8.01 +/- 3.70% vs 0.35 +/- 3.32%, P < .001; Week 16: 7.72 +/- 5.31% vs 0.42 +/- 5.14%, P < .001; Week 24: 4.80 +/- 5.81% vs -1.01 +/- 4.43%, P = .002). Participants with slower walking speed at baseline receiving bimagrumab had clinically meaningful and statistically significantly greater improvements in gait speed (mean 0.15 m/s, P = .009) and 6MWD (mean 82 m, P = .022) than those receiving placebo at Week 16. Adverse events in the bimagrumab group included muscle-related symptoms, acne, and diarrhea, most of which were mild in severity and resolved by the end of study. CONCLUSION: Treatment with bimagrumab over 16 weeks increased muscle mass and strength in older adults with sarcopenia and improved mobility in those with slow walking speed. CI - (c) 2017, Copyright the Authors Journal compilation (c) 2017, The American Geriatrics Society. FAU - Rooks, Daniel AU - Rooks D AD - Novartis Institutes for Biomedical Research, Cambridge, Massachusetts. FAU - Praestgaard, Jens AU - Praestgaard J AD - Novartis Pharmaceuticals Corporation, East Hanover, New Jersey. FAU - Hariry, Sam AU - Hariry S AD - Novartis Institutes for Biomedical Research, Basel, Switzerland. FAU - Laurent, Didier AU - Laurent D AD - Novartis Institutes for Biomedical Research, Basel, Switzerland. FAU - Petricoul, Olivier AU - Petricoul O AD - Novartis Institutes for Biomedical Research, Basel, Switzerland. FAU - Perry, Robert G AU - Perry RG AD - Elite Research Institute, Miami Lakes, Florida. FAU - Lach-Trifilieff, Estelle AU - Lach-Trifilieff E AD - Novartis Institutes for Biomedical Research, Basel, Switzerland. FAU - Roubenoff, Ronenn AU - Roubenoff R AD - Novartis Institutes for Biomedical Research, Basel, Switzerland. LA - eng PT - Clinical Trial, Phase II PT - Journal Article PT - Randomized Controlled Trial DEP - 20170627 PL - United States TA - J Am Geriatr Soc JT - Journal of the American Geriatrics Society JID - 7503062 RN - 0 (Antibodies, Blocking) RN - 0 (Antibodies, Monoclonal) RN - 0 (Antibodies, Monoclonal, Humanized) RN - N15SW1DIV8 (bimagrumab) SB - IM CIN - J Am Geriatr Soc. 2018 Jan;66(1):207-208. PMID: 29148043 CIN - J Am Geriatr Soc. 2018 Jan;66(1):208-209. PMID: 29148045 MH - Absorptiometry, Photon MH - Administration, Intravenous MH - Aged MH - Antibodies, Blocking/*therapeutic use MH - Antibodies, Monoclonal/*therapeutic use MH - Antibodies, Monoclonal, Humanized MH - Double-Blind Method MH - Female MH - Gait MH - Humans MH - Male MH - Mobility Limitation MH - Muscle, Skeletal/*physiopathology MH - Sarcopenia/*drug therapy MH - United States OTO - NOTNLM OT - 6-minute walk test OT - bimagrumab OT - gait speed OT - lean body mass OT - muscle OT - randomized controlled trial OT - sarcopenia EDAT- 2017/06/28 06:00 MHDA- 2017/09/28 06:00 CRDT- 2017/06/28 06:00 PHST- 2017/06/28 06:00 [pubmed] PHST- 2017/09/28 06:00 [medline] PHST- 2017/06/28 06:00 [entrez] AID - 10.1111/jgs.14927 [doi] PST - ppublish SO - J Am Geriatr Soc. 2017 Sep;65(9):1988-1995. doi: 10.1111/jgs.14927. Epub 2017 Jun 27.