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Efficacy of Micro-fragmented Adipose Tissue Injection for Knee Osteoarthritis.

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ClinicalTrials.gov Identifier: NCT03379168
Recruitment Status : Recruiting
First Posted : December 20, 2017
Last Update Posted : April 23, 2018
Sponsor:
Information provided by (Responsible Party):
Dustin L. Richter, MD, University of New Mexico

Tracking Information
First Submitted Date  ICMJE December 7, 2017
First Posted Date  ICMJE December 20, 2017
Last Update Posted Date April 23, 2018
Actual Study Start Date  ICMJE April 1, 2018
Estimated Primary Completion Date March 31, 2019   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures  ICMJE
 (submitted: December 14, 2017)
Change in Visual Analog Pain Scale (VAS) Over Time [ Time Frame: Prior to procedure then post-procedure: 2 weeks, 6 weeks, 3 months, 6 months, 1 year. ]
Scaled pain score to assess change in a patient's knee pain over time. Pain level is marked on a 100 mm line with the 0 mm corresponding to "no pain" and the 100 mm corresponding to 10/10 pain. Using a ruler, the score is determined by measuring the distance (mm) on the 100 mm line between the "no pain" anchor and the patient's mark, providing a range of scores from 0-100. The following cut points on the pain VAS have been recommended: no pain (0-4 mm), mild pain(5-44 mm), moderate pain (45-74 mm), and severe pain (75-100 mm).
Original Primary Outcome Measures  ICMJE Same as current
Change History Complete list of historical versions of study NCT03379168 on ClinicalTrials.gov Archive Site
Current Secondary Outcome Measures  ICMJE
 (submitted: December 14, 2017)
  • Change in Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Over Time [ Time Frame: Prior to procedure then post-procedure: 2 weeks, 6 weeks, 3 months, 6 months, 1 year. ]
    Patient self-reported outcome measure to assess pain, stiffness, and physical function in patients with knee osteoarthritis. The WOMAC consists of 24 items divided into 3 subscales: Pain (5 items), Stiffness (2 items), and Physical Function (17 items). The following descriptors are used for all items: none, mild, moderate, severe, and extreme. These correspond to an ordinal scale of 0-4. The scores are summed for items in each subscale, with possible ranges as follows: pain=0-20, stiffness=0-8, physical function=0-68. A total WOMAC score is created by summing the items for all three subscales. Higher scores on the WOMAC indicate worse pain, stiffness, and functional limitations. The score can range from 0 to 96; however, this score is typically reported as a percentage of 100 for normalization.
  • Change in Knee Injury and Osteoarthritis Outcomes Score (KOOS) Over Time [ Time Frame: Prior to procedure then post-procedure: 2 weeks, 6 weeks, 3 months, 6 months, 1 year. ]
    Patient self-reported outcome measure to assess the patient's opinion about their knee and associated issues. KOOS consists of 5 subscales; Pain, other Symptoms, Function in daily living (ADL), Function in sport and recreation (Sport/Rec) and knee related Quality of life (QOL). Standardized answer options are given (5 Likert boxes) and each question gets a score from 0 to 4. A normalized score (100 indicating no symptoms and 0 indicating extreme symptoms) is calculated by adding the subscales together.
Original Secondary Outcome Measures  ICMJE Same as current
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title  ICMJE Efficacy of Micro-fragmented Adipose Tissue Injection for Knee Osteoarthritis.
Official Title  ICMJE Evaluating the Efficacy of Micro-fragmented Adipose Tissue and Intra-articular Corticosteroid Injections for Symptomatic Knee Osteoarthritis: a Randomized, Placebo Controlled Study.
Brief Summary

Knee osteoarthritis (OA) causes patients considerable joint pain and leads to instability, reduced range of motion, and functional limitations. Current treatment limitations have generated interest in alternative options to restore function and alleviate joint pain, some with the aim of healing damaged articular cartilage. There has been preliminary support in the literature for reduced pain and improved functional performance in patients who receive mesenchymal stem cells (MSCs) as part of a treatment regimen. MSCs can be costly and are limited by complex regulatory issues. This interest in an alternative isolation method lead to the development of Lipogems. Lipogems is a technique to harvest, process, and inject minimally manipulated adipose tissue. This procedure is enzyme free and requires no clonal expansion or manipulation. The goal of this study is to evaluate the possible benefits of reduced joint pain and increased joint functionality in patients with knee osteoarthritis after the injection of Lipogems. In addition, given the limitations of prior research on the efficacy of intra-articular corticosteroids, the investigators will also include this as an additional study group to compare to placebo. There have been case reports published showing favorable outcomes. This would be the first study reporting data on the efficacy of Lipogems for pain relief in knee OA in a randomized, controlled clinical trial with a larger sample of patients.

The investigators hypothesize that patients who receive an injection of Lipogems will experience a decrease in pain of the affected knee and an increase in joint functionality in comparison to placebo. The investigators also hypothesize that patients who receive an intra-articular corticosteroid will experience decreased pain or improved functionality in the affected joint compared to placebo.

Detailed Description

Objectives:

  1. The purpose of this study is to evaluate the possible benefits of reduced joint pain and increased joint functionality in patients with knee osteoarthritis after the injection of Lipogems. Based on limitations of prior research, intra-articular corticosteroids are included as a study group to be evaluated for impact on pain relief and joint functionality in comparison to placebo.
  2. The investigators hypothesize that patients who receive an injection of Lipogems will experience a decrease in pain of the affected knee and an increase in joint functionality in comparison to placebo. The investigators also hypothesize that patients who receive an intra-articular corticosteroid will experience decreased pain or improved functionality in the affected joint.

Background:

Osteoarthritis (OA) causes patients considerable joint pain and leads to instability, reduced range of motion, and functional limitations. Pathologic findings of OA include decreased articular cartilage, joint space narrowing, osteophytes, subchondral sclerosis and bone cysts. Currently, treatment options are confined to symptom management only. Options for treatment include: topical preparations, nonsteroidal anti-inflammatory drugs (NSAIDs), intra-articular injections, and, in severe cases, total knee arthroplasty. Review of recent recommendations shows limitations to all available treatments. Oral NSAIDs have shown relief, but is limited to patients without risk factors or contraindications. Topical NSAIDs are recommended in elderly patients or those with GI risk factors, rather than oral NSAIDs. However, pain improvement took 12 weeks and was not long-lived, potentially due to compliance issues in application. A recent systematic review of intra-articular corticosteroids reported that, due to low-quality evidence, it is inconclusive whether intra-articular corticosteroids provided any short or long-term pain relief. Taylor's review of hyaluronic acid treatment is hampered by the variability of preparations currently on the market and shortage of double-blind placebo controlled studies, but conflicting data is reported. Osteoarthritis Research Society International currently recommends corticosteroid injections for short-term pain relief only, and is inconclusive in recommending hyaluronic acid.

The aforementioned treatment limitations have generated interest in alternative options to restore function and alleviate joint pain, some with the aim of healing damaged articular cartilage. It is well known that articular cartilage is avascular and lacks innervation, which limits its intrinsic healing and repair capabilities. Chondrocytes, derived from MSCs, have limited potential to replicate, which also limits the intrinsic healing and repair capabilities of articular cartilage. The stromal vascular fraction, containing adipose derived mesenchymal stem cells (MSCs), has historically been isolated successfully via enzymatic processes. There has been preliminary support in the literature for reduced pain and improved functional performance in patients who received MSCs as part of treatment. However, approaches to isolate MSCs are costly, time consuming, require extensive lab equipment, and are currently limited by complex regulatory issues.

Thus, interest in an alternative isolation method lead to the development of Lipogems. Lipogems is a technique to harvest, process, and inject minimally manipulated adipose tissue. This procedure is enzyme free and requires no clonal expansion or manipulation. Lipoaspirate is harvested and washed in saline solution, then processed through a closed-system device that micro-fragments the adipose tissue. This mechanical process retains the vascular architecture, mature pericytes, and MSCs for autologous injection.

As new technologies are becoming available for the treatment of OA, it is important that investigators gather high-quality data on their efficacy and outcomes. The goal of this study is to evaluate the possible benefits of reduced joint pain and increased joint functionality in patients with knee osteoarthritis after the injection of Lipogems. In addition, given the limitations of prior research on the efficacy of intra-articular corticosteroids, the investigators will also include this as an additional study group to compare to placebo. Although Lipogems is relatively new to the United States, it has been used for a variety of orthopaedic arthroscopic applications overseas including the treatment of knee OA and is being used more frequently now in the United States. As of now, there are no published studies reporting the outcomes of patients who receive Lipogems for knee OA. There have been case reports published showing favorable outcomes. Thus, this would be the first study reporting data on the efficacy of Lipogems for pain relief in knee OA in a randomized, controlled clinical trial with a larger sample of patients. It would also be the only study to date comparing Lipogems to intra-articular corticosteroids and placebo injections. The investigators feel this study design will provide new insight into the efficacy of Lipogems for pain relief of symptomatic knee OA as well as offer new data on the efficacy of intra-articular corticosteroids in this application.

Study Type  ICMJE Interventional
Study Phase  ICMJE Not Applicable
Study Design  ICMJE Allocation: Randomized
Intervention Model: Parallel Assignment
Intervention Model Description:
This study will be conducted as a randomized, placebo-controlled clinical trial. Patients will be randomized to receive either Lipogems, intra-articular corticosteroids, or a placebo injection of saline. Lipogems is cleared for use by the FDA in orthopaedics and arthroscopy and is offered as a treatment option for knee osteoarthritis. This study will be evaluating the effectiveness (not safety) of Lipogems when compared to corticosteroids and placebo. Thus, no information will be submitted to the FDA.
Masking: Single (Participant)
Masking Description:
It is not feasible to blind patients who are randomized to receive Lipogems, as adipose tissue must be obtained from the participant. However, patients randomized to receive intra-articular corticosteroids or placebo injections will be blinded.
Primary Purpose: Treatment
Condition  ICMJE Knee Osteoarthritis
Intervention  ICMJE
  • Device: Microfragmented Adipose Tissue (Lipogems)
    Lipogems is a technique to harvest, process, and inject minimally manipulated adipose tissue. This procedure is enzyme free and requires no clonal expansion or manipulation. Lipoaspirate is harvested most commonly from the abdomen and washed in saline solution, then processed through a closed-system device that micro-fragments the adipose tissue. This mechanical process retains the vascular architecture, mature pericytes, and MSCs for autologous injection. Lipogems is currently FDA-approved for orthopedic and arthroscopic procedures; thus, this would be an on-label use for knee injections.
  • Drug: Corticosteroid injection
    Cortisone is a standard of care injection to reduce joint inflammation.
  • Drug: Saline
    Sterile saline injection will act as a placebo group.
Study Arms  ICMJE
  • Placebo Comparator: Placebo Injection
    Patients who are randomized to the placebo group will receive an injection of 7cc of sterile saline in the affected knee.
    Intervention: Drug: Saline
  • Active Comparator: Corticosteroid Injection
    Patients who are randomized to the corticosteroid group will receive an injection of 2cc (80mg) of triamcinalone acetonide injectable suspension mixed with 5 cc of 1% plain lidocaine for a total of 7cc of fluid injected in the affected knee.
    Intervention: Drug: Corticosteroid injection
  • Experimental: Lipogems Injection
    Patients who are randomized to the Lipogems treatment group will undergo a lipoaspiration from their abdomen and autologous injection of the harvested adipocytes into their knee. It is standard to harvest three to four times more adipose tissue than is planned to be injected to account for tissue processing by the Lipogems device. The investigators plan to inject 7cc of autologous adipose tissue. Thus, the investigators will harvest between 25 and 30 cc of adipose tissue from each patient. The tissue will be processed immediately and 7cc will be injected. Any remaining adipose tissue will be disposed of immediately in biohazardous waste.
    Intervention: Device: Microfragmented Adipose Tissue (Lipogems)
Publications *

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status  ICMJE Recruiting
Estimated Enrollment  ICMJE
 (submitted: December 14, 2017)
100
Original Estimated Enrollment  ICMJE Same as current
Estimated Study Completion Date  ICMJE July 2019
Estimated Primary Completion Date March 31, 2019   (Final data collection date for primary outcome measure)
Eligibility Criteria  ICMJE

Inclusion Criteria:

  • Age of eighteen or older
  • Diagnosis of symptomatic knee osteoarthritis
  • Radiographic evidence of knee osteoarthritis. Note: For the purposes of this study, radiographic evidence of knee osteoarthritis is defined as any one or more of the following: osteophytes, joint space narrowing, loss of articular cartilage thickness, subchondral sclerosis or cysts.

Exclusion Criteria:

  • History of treatment with any intra-articular knee injection
  • Current ligament instability as demonstrated by a positive Lachman Test, Anterior or Posterior Drawer Test, or positive Valgus or Varus Stress Test.
  • Known allergy to lidocaine
  • Under 18 years of age
  • Pregnant women
  • Prisoners
Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE 18 Years and older   (Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE Yes
Contacts  ICMJE
Contact: Dustin Investigator, MD 505-272-1209 DLRichter@salud.unm.edu
Listed Location Countries  ICMJE United States
Removed Location Countries  
 
Administrative Information
NCT Number  ICMJE NCT03379168
Other Study ID Numbers  ICMJE 17-146
Has Data Monitoring Committee Not Provided
U.S. FDA-regulated Product
Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: Yes
Device Product Not Approved or Cleared by U.S. FDA: No
Product Manufactured in and Exported from the U.S.: Yes
IPD Sharing Statement  ICMJE
Plan to Share IPD: No
Plan Description: No plan to share IPD with other researchers.
Responsible Party Dustin L. Richter, MD, University of New Mexico
Study Sponsor  ICMJE Dustin L. Richter, MD
Collaborators  ICMJE Not Provided
Investigators  ICMJE
Principal Investigator: Dustin Richter, MD UNM Health Sciences Center, Dept of Orthopaedic Surgery
PRS Account University of New Mexico
Verification Date April 2018

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP