for people ages 35-85 (full criteria)
Healthy Volunteers
healthy people welcome
at UC Davis
study started
estimated completion
Principal Investigator
by Charles DeMesa, DO (ucdavis)



This study is a pivotal study to evaluate the efficacy and safety of a single injection of autologous adipose-derived SVF produced using the GID SVF-2 device system for treatment of pain with concomitant improvement in function associated with osteoarthritis of the knee joint.

Official Title

Use of GID SVF-2 Device to Produce Autologous Adipose-Derived Stromal Vascular Fraction for Treatment of Osteoarthritis of the Knee: A Pivotal Medical Device Randomized Concurrent Controlled Study


This is a prospective, randomized, placebo controlled, parallel groups, double blind, multi-center, interventional study of subjects with osteoarthritis of the knee. Subjects will be randomized to receive an injection of LR (placebo) or SVF derived from their own adipose tissue (experimental).


Osteoarthritis, Knee, Osteoarthritis, Knee Osteoarthritis, GID SVF-2 Device System, Stromal Vascular Fraction (SVF)


You can join if…

Open to people ages 35-85

  1. Bilateral or unilateral knee osteoarthritis as diagnosed on pre-op MRI using the Outerbridge Cartilage Classification as Grade II, Grade III, or Grade IV with full thickness lesion of the articular cartilage is less than 2.5 cm in any direction
  2. Kellgren and Lawrence score grade 2-4 as diagnosed on X-Ray
  3. Index knee must present with a score ≥8 using the WOMAC pain scale (A1 subscale, 20 total points)
  4. Study Subjects must be willing to voluntarily give written Informed Consent to participate in the study and sign the Health Insurance Portability and Accountability Act (HIPAA) authorization before any study procedures are performed
  5. Males and females 35-85 years old
  6. Subjects with BMI ≥22 and ≤ 37
  7. Subjects must speak, read and understand English
  8. Subjects must be able to return for multiple follow-up visits
  9. Subjects must have failed at least two conservative therapies for treatment of knee OA within the last 24 months (2 years), with one or more of the failed conservative therapies being from a-f:
  10. Physical Therapy: 6 week course of treatment
  11. Exercise Therapy: 6 week course of treatment
  12. Viscosupplementation injection in the knee for OA pain
  13. Steroid injection in the knee for OA pain
  14. Platelet-Rich Plasma (PRP) injection in the knee for OA pain
  15. Arthroscopic surgery including microfracture and/or debridement
  16. Braces or other support devices: therapy tried for at least 2 weeks
  17. Over the Counter (OTC) pain medication including NSAIDS, Acetaminophen, ASA: therapy tried for at least 2 weeks
  18. Prescription pain medication: therapy tried for at least 1 weeks
  19. . Modification of Activities of Daily Living (ADL): therapy tried for at least 2 weeks
  20. . Topical applications to the knee for OA pain: therapy tried for at least 2 weeks
  21. . Supplements including glucosamine sulfate and chondroitin sulfate: therapy tried for at least 4 weeks
  22. . Ice/Heat regimen: therapy tried for at least 2 weeks

You CAN'T join if...

  1. Subjects whose knee pain is caused by:
  2. unstable meniscal root tears or locked bucket handle meniscal tears ii. displaced meniscus tear iii. osteo chondritis dissecans iv. parameniscal, Baker's, or ganglion cysts v. lipoma arborescens vi. Hoffa's Pad Syndrome vii. acute ligament tears viii. diffuse edema ix. patellar mal-tracking or patellar dislocations
  3. Outerbridge Scale Grade 0-I as diagnosed on MRI
  4. Outerbridge Scale Grade IV where the full thickness lesion of the articular cartilage is greater than 2.5 cm in any direction, as diagnosed on MRI
  5. Subjects with malignant neoplasms of the bone, cartilage, synovium or vasculature.
  6. Subjects who have had surgery of either knee within 6 months prior to the surgery visit
  7. Subjects who have had a major injury to either knee within 12 months prior to the surgery visit
  8. Subjects who have had an injection into the intraarticular space of either knee in the prior 6 months, including corticosteroids, viscosupplementation, stromal vascular fraction (SVF), bone marrow stem cells, or platelet rich plasma
  9. Subjects who have a diagnosis of gout with a flare in the past 12 months.
  10. Subjects who have a diagnosis of Pes Anserine Bursitis with an event in the past 12 months.
  11. . Subjects who have had a diagnosed infection in the knee joint in the past 12 months.
  12. . Subject who have received a diagnosis of the following at any time: rheumatoid arthritis, lupus arthropathy, psoriatic arthritis, avascular necrosis, fibromyalgia, or neurogenic or vascular claudication
  13. . Diagnosis of severe bone deformity defined as greater than 10 degrees of either varus or valgus deformity
  14. . Subjects that are unwilling to stop taking prescription or over the counter pain medication 7 days prior to any visit (except Day 2 Post Treatment Visit).
  15. . Subjects that are allergic to lidocaine, epinephrine or valium
  16. . Subjects with a history of bleeding disorders, anticoagulation therapy that cannot be stopped as follows prior to injection; thrombolytics and anti-platelet medication including but not limited to Coumadin (warfarin) for 3 days, Plavix (colpidogrel) for 3 days, ASA/NSAIDs/fish oil supplements for 7 days, Xarelto® (rivaroxaban) for 24 hours
  17. . Subjects with systemic immunosuppressant use within 6 weeks from screening
  18. . Subjects with HIV or viral hepatitis
  19. . Subjects who have ever received a diagnosis of:

chondrocalcinosis, Paget's disease or Villonodular synovitis

  1. . Subjects that use any form of tobacco, including e-cigarettes, more than once a week over the most recent 1 year period
  2. . Women that are pregnant or planning to become pregnant during the study
  3. . Subjects on long term oral steroids defined as longer than a 2-week taper.
  4. . History of any chemotherapy or radiation therapy on either leg or adipose harvest site
  5. . Subjects currently on workers' compensation


  • UC Davis accepting new patients
    Sacramento California 95817 United States
  • Texas Center for Cell Therapy and Research accepting new patients
    San Antonio Texas 78240 United States

Lead Scientist at University of California Health

  • Charles DeMesa, DO (ucdavis)
    Associate Professor, Anesthesiology and Pain Medicine, School of Medicine. Authored (or co-authored) 10 research publications


accepting new patients
Start Date
Completion Date
Study Type
Expecting 124 study participants
Last Updated