Bone Biologics has announced that it has completed a preclinical study, which shows its rhNELL-1 growth factor effectively promotes bone formation in a phylogenetically advanced spine model. In addition, rhNELL-1 was shown to be well tolerated and there were no findings of inflammation. Bone Biologics previously announced that it received Human Research Ethics Committee (HREC) approval for the first center of a multicenter pilot clinical trial to evaluate NB1 (NELL-1/DBX®) in 30 patients in Australia. The pilot study will evaluate the safety and effectiveness of NB1 in adult subjects with degenerative disc disease (DDD) at one level from L2-S1, who may also have up to Grade 1 spondylolisthesis or Grade 1 retrolisthesis at the involved level who undergo transforaminal lumbar interbody fusion (TLIF).