Curi Bio Inc. 1 article published in JoVE Bioengineering Preclinical Drug Testing in Scalable 3D Engineered Muscle Tissues Bonnie J. Berry*1, Shawn M. Luttrell*1, Charles T. Moerk1, Jesse Macadangdang1, Jessica Perez1, Kevin Gray1, Hamed Ghazizadeh1, Samir Kharoufeh1, Brandon Nelsen1, Nicholas A. Geisse1 1Curi Bio Inc. This protocol provides methods for generating 3D engineered cardiac and skeletal muscle tissues and describes their use in preclinical drug screening modalities. The described methods utilize a magnetic sensing system to facilitate the simultaneous assessment of 24 tissues in parallel.