Drug Name: MRG-107
Company: miRagen Therapeutics
Location: US-Colorado
Drug Type: Gene Therapy
Conditions: ALS
Mechanism Type: Immunomodulation
Mechanism: MRG-107 is an oligonucleotide drug that targets miR-155, a microRNA that is elevated in the spinal cord of patients with ALS, and in ALS mouse models. It is emerging as a key player in neuroinflammation and immune regulation, and therefore is a therapeutic target of interest in ALS.
U.S. Status for ALS: Preclinical

[1] miRagen Therapeutics – Pipeline. miRagen Therapeutics, 2016. Accessed 11 Mar 2016 from
[2] Targeting miR-155 restores abnormal microglia and attenuates disease in SOD1 mice. Butovsky, O et al. Ann Neurol. 2015 Jan; 77(1): 75–99.
[3] Method for widespread microRNA-155 inhibition prolongs survival in ALS-model mice. Koval, ED et al. Hum Mol Genet. 2013 Oct 15;22(20):4127-35.

Last updated March 11th, 2019

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