Extension Study of Protocol RC-001- Safety and Efficacy of Adult Adipose-Derived Stem Cell Injection into Partial Thickness Rotator Cuff Tears. Purpose is to investigate the Long- term safety and efficacy of autologous stem cells in patients with partial thickness rotator cuff tears versus a steroid treatment.

The purpose of this investigation is to evaluate the safety and superior effectiveness in functional improvement in patients with partial-thickness rotator cuff tears (PTRCTs) after the administration of a single injection of adipose-derived regenerative cells (ADRCs) into the partial-thickness rotator cuff tear compared to the administration of a single corticosteroid injection into the associated subacromial space.

The ADRC mixture is generated from the Transpose® RT System, a point-of-care solution for extraction of an autologous regenerative cell mixture from the adipose tissue after a same-day limited liposuction procedure. A pilot clinical study was recently completed using an injection of ADRC compared to a corticosteroid injection for treatment of PTRCTs. Results support the initiation of a pivotal study to study the same.

Inclusion Criteria:

• Patient completed participation in RC-001 (NCT02918136) study
• Must have the ability to understand and sign a written informed consent form (ICF), which must be obtained prior to initiation of study procedures associated with this trial.

Exclusion Criteria:

• none