Plasma Injections Plus Exercise for Patellar Tendinopathy

Inclusion Criteria: * Male or female ≥ 18 and ≤ 50 years of age at Enrollment Visit * Documentation of a clinical diagnosis of patellar tendinopathy, grade-IIIB Blazina stage, confirmed on ultrasound * Previously tried an exercise program of at least six weeks duration * Fluent in official language of study site * Written informed consent obtained from subject * Normal values on screening laboratory panels (CBC, PT, PTT, INR, serum creatine, ALT, ALP, AST, bilirubin, albumin) Exclusion Criteria: * For women of child-bearing potential, positive pregnancy test at enrollment visit * Major surgery in the past three months * Surgery on the symptomatic knee * Bleeding disorder * Systemic inflammatory disease * Arthritis or degenerative knee condition * Recent fluoroquinolone use * Subjects who have any requirement for the use of systemic steroids or immunosuppressants * Subjects who are known to be HIV positive * Uncooperative patient, or patients who are incapable of following directions or who are predictably unwilling to return for follow-up examinations * Presence of a condition or abnormality that in the opinion of the Investigator would compromise the safety of the patient or the quality of the data