Clinical Intramuscular Gene Transfer of rAAV1.CMV.huFollistatin344 Trial to Patients With Duchenne Muscular Dystrophy

Summary

The proposed clinical trial is an outgrowth of the safety record and functional improvement seen in the BMD follistatin gene therapy trial. In this study the investigators propose to inject AAV1.CMV.huFS344 at a total dose of 2.4E12 vg/kg to six DMD patients. This dose will be divided between gluteal muscles, quadriceps and tibialis anterior. This is a wider distribution of vector than given to BMD patients, who overall improved the distance walked on the 6MWT without adverse events related to viral transduction into a single muscle.

Timeline

Start

2015-01

Primary completion

2017-11

Completion

2017-11

Publications

• Background Mendell JR, Sahenk Z, Malik V, Gomez AM, Flanigan KM, Lowes LP, Alfano LN, Berry K, Meadows E, Lewis S, Braun L, Shontz K, Rouhana M, Clark KR, Rosales XQ, Al-Zaidy S, Govoni A, Rodino-Klapac LR, Hogan MJ, Kaspar BK. A phase 1/2a follistatin gene therapy trial for becker muscular dystrophy. Mol Ther. 2015 Jan;23(1):192-201. doi: 10.1038/mt.2014.200. Epub 2014 Oct 17.
• Background Kota J, Handy CR, Haidet AM, Montgomery CL, Eagle A, Rodino-Klapac LR, Tucker D, Shilling CJ, Therlfall WR, Walker CM, Weisbrode SE, Janssen PM, Clark KR, Sahenk Z, Mendell JR, Kaspar BK. Follistatin gene delivery enhances muscle growth and strength in nonhuman primates. Sci Transl Med. 2009 Nov 11;1(6):6ra15. doi: 10.1126/scitranslmed.3000112.
• Background Rodino-Klapac LR, Haidet AM, Kota J, Handy C, Kaspar BK, Mendell JR. Inhibition of myostatin with emphasis on follistatin as a therapy for muscle disease. Muscle Nerve. 2009 Mar;39(3):283-96. doi: 10.1002/mus.21244.
• Background Miller TM, Kim SH, Yamanaka K, Hester M, Umapathi P, Arnson H, Rizo L, Mendell JR, Gage FH, Cleveland DW, Kaspar BK. Gene transfer demonstrates that muscle is not a primary target for non-cell-autonomous toxicity in familial amyotrophic lateral sclerosis. Proc Natl Acad Sci U S A. 2006 Dec 19;103(51):19546-51. doi: 10.1073/pnas.0609411103. Epub 2006 Dec 12.
• Bian X, Snow ZK, Zinn CJ, Gowan CC, Conley SM, Bratulin AL, Elhusseiny KM, Miller J, Tchkonia T, Kirkland JL, Lerman LO, Hickson LJ. Activin A Antagonism with Follistatin Reduces Kidney Fibrosis, Injury, and Cellular Senescence-Associated Inflammation in Murine Diabetic Kidney Disease. Kidney360. 2025 Mar 28;6(8):1278-1291. doi: 10.34067/KID.0000000776.

Drugs

Indications