Clinical Evidence
The Neurolutions System has been evaluated in 40 subjects across three separate clinical studies (described below), all of which evaluated use of the Neurolutions system in chronic stroke survivors. All three studies were designed to determine the feasibility of recording electroencephalogram (EEG) signals from the affected and/or unaffected brain hemispheres, and to use the signals to control a computer to facilitate movement of a handpiece.
The results of the studies have been analyzed to determine if the Neurolutions System can be used to positively impact rehabilitation. These three studies were open-label studies whereby a literature meta-analysis assessing usual care as well as minimal clinically important difference (MCID) benchmarks were utilized for comparison of device effectiveness in lieu of randomized control data.
Results of testing demonstrate that following 12 weeks of use of the Neurolutions System, chronic stroke survivors showed increases in the mean change from their baseline scores on the primary outcome measure for the three respective studies.
Ten of the total 40 subjects were assessed utilizing the Action Research Arm Test (ARAT) as the primary outcome measure and the mean scores exceeded the Minimal Clinically Important Difference (MCID) of 5.7 points (study QRS-0008). In the two other studies (QRS-0012 and QRS-0013), 30 of the total 40 subjects were assessed utilizing the Fugl-Meyer Upper Extremity (UEFM) assessment as the primary outcome measure. For 66.7% of these 30 subjects, mean scores exceeded the MCID of 5.25 points.
Overall, ARAT data were collected on a total of 27 subjects from QRS-0008 and QRS-0012 (ARAT was a secondary measure in QRS-0012), while UEFM data were collected in 30 subjects from studies QRS-0012 and QRS-0013. The 17 subjects assessed with ARAT as a secondary measure in QRS-0012, while demonstrating some mean improvement, did not exceed MCID. No patient injury or adverse events occurred in any of the studies.