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Lipogems Prospective Study

Adipose Derived Stromal Cell Transplantation as an Adjunct to Arthroscopy in Treatment of Effusion Synovitis of the Early Degenerative Knee

Status
Terminated
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03922490
Enrollment
2
Registered
2019-04-22
Start date
2019-11-11
Completion date
2020-02-27
Last updated
2023-02-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Knee Osteoarthritis

Brief summary

The purpose of this study is to study the clinical outcomes and effects of the injection of fat-derived stem cells (the scientific name being adipose derived autologous stem cell transplantation (ADAT)) as an addition to knee arthroscopy in the treatment of knee swelling and pain associated with mild to moderate knee osteoarthritis. Management of this condition remains a pervasive problem within orthopaedics. Lipogems is a Food and Drug Administration (FDA) approved technique. Lipogems is the name of the technology used to obtain stem cells from fat that will be aspirated/removed by suction from the abdomen. Fat will be processed to obtain stem cells which will then be injected into the knee after the physician completes knee arthroscopy. The study that we are asking patients to enroll in is important because it will attempt to answer the question about whether fat-derived stem cells added to knee arthroscopy is better, worse or no different than knee arthroscopy alone. Currently, without this study, we do not have an answer to this question.

Detailed description

Protocol Outline: * The patient will undergo a diagnostic knee arthroscopy. This procedure would have been performed regardless of enrollment in the study. During the diagnostic knee arthroscopy, the surgeon will determine whether the patient is eligible to participate in the study. * If the patient has a torn meniscus, inflamed joint lining or loose fragments in the knee, this will be removed and treated and he/she will still be eligible for the study. * If, however, the physician determines that the patient needs more invasive treatments (such as cartilage transplantation, meniscal repair, removal of a substantial amount of your meniscus), then he/she will be excluded from the study and will not have fat tissue suctioned from his/her abdomen. The standard of care treatment will then proceed based on the physician's judgement. * After the surgeon completes the arthroscopic procedure, the recommended amount of fat-derived stem cells (about 2 teaspoons) will be injected into the knee. There will be approximately 1 teaspoon of excess fat derived stem cells, which will be transported to our research facility so that the contents can be stored for later examination. * After surgery, 5 visits are required by the patient over the following 12 months: at 2 weeks after surgery to monitor his/her incision, at 6 weeks, 12 weeks, 6 months and then finally 12 months.

Interventions

DEVICELipogems Device PLUS debridement

Lipogems is the name of the technology used to obtain stem cells from the abdomen, which will then be injected into the knee after knee arthroscopy.

PROCEDUREDebridement only

Patients will undergo knee arthroscopy as a standard treatment for their condition but will not receive the fat-derived stem cell treatment nor will undergo any additional procedures.

Sponsors

Hospital for Special Surgery, New York
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Age between 18 and 70 years * Knee pain and symptoms for \>2 months - clicking, popping, giving way, pain with pivot or torque, pain that is episodic, and pain that is acute and localized to one joint * Conservative treatment \>4 weeks with one or more of: * Non-steroidal Anti-inflammatory Drugs (NSAIDS) or acetaminophen or contraindication to use of NSAIDs and acetaminophen, Activity limitations, Physical Therapy (PT) * Hospital for Special Surgery (HSS) MRI demonstrating grade 1-3 knee joint effusion/synovitis based on MRI Osteoarthritis Knee Score (MOAKS) criteria * K-L grade 0-3 on radiographs and/or cartilage thinning on MRI w/ or w/o meniscal tear * Ability to provide informed consent

Exclusion criteria

The patients listed below are excluded due to potential confound factors which may alter clinical outcomes in either treatment group (1,3,4,5 7,8, 11, 12,13), if they may potentially cause a ceiling or floor effect to our clinical outcomes (2,6,) or if the treatment may constitute and undue risk to the patient or be outside of the standard of practice of treatment for that patient (1, 9, 10,14, 15, 16) * 1\. Under 18 years of age or skeletally immature * 2\. Grade 4 radiographic Osteoarthritis (OA) as defined by the K-L classification * 3\. Grade 4 chondral lesion of patellofemoral joint on diagnostic arthroscopy * 4\. Major coronal plane malalignment (\>5° valgus or varus deviation) * 5\. Knee ligamentous instability * 6\. Pretreatment Numeric Rating Scale (NRS) pain score of \<40 of 100 * 7\. Systemic disorders such as diabetes, inflammatory arthritis (Rheumatoid Arthritis (RA), gout, psoriatic arthritis, Calcium Pyrophosphate Deposition Diseases (CPPD)), hematological diseases (coagulopathies),severe cardiovascular diseases, systemic infections, or immunodeficiencies. * 8\. History of septic arthritis * 9\. Ventral hernia (if abdominal donor site) * 10\. Lipomatous neoplasm in region of proposed donor site. * 11\. Current use of anticoagulant medications in the 5 days before surgical intervention * 12\. Recent intra-articular injection of corticosteroids (within 30 days) or * 13\. prior treatment with Hyaluronic acid (HA) in past 6 months. * 14\. Knee surgery within the previous 2 months * 15\. Pregnancy or possible pregnancy * 16\. Epilepsy

Design outcomes

Primary

MeasureTime frameDescription
Change in Knee Injury and Osteoarthritis Outcome (KOOS) Pain SubscaleBaseline, 2-Week post-op, 6-Week post-opQuestions related to knee pain Scale range: 0-100 points (100 indicating no symptoms and 0 indicating extreme symptoms)

Secondary

MeasureTime frameDescription
Change in Knee Injury and Osteoarthritis Outcome (KOOS) Function in Daily Living (ADL)Baseline, 2-Week post-op, 6-Week post-opQuestions related to function in daily living Scale range: 0-100 points (100 indicating no symptoms and 0 indicating extreme symptoms)
Change in Knee Injury and Osteoarthritis Outcome (KOOS) Function in Sport and Recreation (Sport/Rec)Baseline, 2-Week post-op, 6-Week post-opQuestions related to function in sport and recreation Scale range: 0-100 points (100 indicating no symptoms and 0 indicating extreme symptoms)
Change in Knee Injury and Osteoarthritis Outcome (KOOS) Quality of Life (QOL)Baseline, 2-Week post-op, 6-Week post-opQuestions related to knee-related quality of life Scale range: 0-100 points (100 indicating no symptoms and 0 indicating extreme symptoms)
Change in Knee Injury and Osteoarthritis Outcome (KOOS) SymptomsBaseline, 2-Week post-op, 6-Week post-opQuestions related to other knee symptoms other than pain Scale range: 0-100 points (100 indicating no symptoms and 0 indicating extreme symptoms)
Change in Numerical Pain Rating Scale (NPRS)Baseline, 2-Week post-op, 6-Week post-opNumerical pain rating scale for pain in knee (0-10) (0: no pain - 10: worst pain imaginable)
Change in Marx Activity Rating ScaleBaseline, 2-Week post-op, 6-Week post-opMeasures frequency of activity in healthiest and most active state during past year Includes four knee functions, each rated 0-4 total scale range 0-16 (higher score indicates more frequent participation/activity)
Change in Patient-Reported Outcomes Measurement Information System Global-10 Short Form (PROMIS-10)Baseline, 2-Week post-op, 6-Week post-op10-item questionnaire with nine 5-point (as well as a single 11-point) rating scales. The results are used to calculate two summary scores: a Global Physical Health Score and a Global Mental Health score. These scores are then standardized to the general population, using the T-Score. The average T-Score for the United States population is 50 points, with a standard deviation of 10 points. Higher scores indicate a healthier patient. 11-point scale question recalculated to a 5 point scale. only 8 of 10 questions used for scoring calculations (Each sub-score is generated by 4/8 questions) - 4Qs, 5 points each Scale from 0-20 to calculate Global Mental Health Raw Score (higher score means better outcome) Scale from 0-20 to calculate Global Physical Health Raw Score (higher score means better outcome) The raw scores are then standardized to general population using the T-score: Global physical health t-score range: 16.2-67.7 Global mental health t-score range: 21.2-67.6
Change in International Knee Documentation Committee (IKDC) Subjective Knee FormBaseline, 2-Week post-op, 6-Week post-opQuestions related to knee function over periods of time (100 indicating no symptoms and 0 indicating extreme symptoms)

Countries

United States

Participant flow

Participants by arm

ArmCount
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)
Experimental Group: will undergo diagnostic knee arthroscopy with injection of adipose derived stem cells. Will also carry out all procedures associated with study (Physical Exam, Magnetic Resonance Imaging (MRIs), X-rays, Questionnaires). Lipogems Device PLUS debridement: Lipogems is the name of the technology used to obtain stem cells from the abdomen, which will then be injected into the knee after knee arthroscopy.
2
Observation Cohort: Knee Arthroscopy
Observational Group: will undergo diagnostic knee arthroscopy (No injection of adipose derived stem cells). Will also carry out all procedures associated with study (Physical Exam, MRIs, X-rays, Questionnaires). Debridement only: Patients will undergo knee arthroscopy as a standard treatment for their condition but will not receive the fat-derived stem cell treatment nor will undergo any additional procedures.
0
Total2

Baseline characteristics

CharacteristicKnee Arthroscopy + Adipose Derived Stem Cells (ADSC)Total
Age, Categorical
<=18 years
0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
2 Participants2 Participants
Age, Continuous56 years56 years
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
2 Participants2 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants
Region of Enrollment
United States
2 participants2 participants
Sex: Female, Male
Female
1 Participants1 Participants
Sex: Female, Male
Male
1 Participants1 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 20 / 0
other
Total, other adverse events
0 / 20 / 0
serious
Total, serious adverse events
0 / 20 / 0

Outcome results

Primary

Change in Knee Injury and Osteoarthritis Outcome (KOOS) Pain Subscale

Questions related to knee pain Scale range: 0-100 points (100 indicating no symptoms and 0 indicating extreme symptoms)

Time frame: Baseline, 2-Week post-op, 6-Week post-op

Population: Due to COVID, recruiting patients was difficult and thus the study has been suspended. To add to that difficulty, RAs have not been permanent and have been leaving prior the agreed time when hired. The target number of participants was never obtained and thus the data set is incomplete.

ArmMeasureGroupValue (MEAN)
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Knee Injury and Osteoarthritis Outcome (KOOS) Pain SubscaleBaseline52.5 score on a scale
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Knee Injury and Osteoarthritis Outcome (KOOS) Pain Subscale2-Week Post-op69 score on a scale
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Knee Injury and Osteoarthritis Outcome (KOOS) Pain Subscale6-Week Post-op93 score on a scale
Secondary

Change in International Knee Documentation Committee (IKDC) Subjective Knee Form

Questions related to knee function over periods of time (100 indicating no symptoms and 0 indicating extreme symptoms)

Time frame: Baseline, 2-Week post-op, 6-Week post-op

Population: Due to COVID, recruiting patients was difficult and thus the study has been suspended. To add to that difficulty, RAs have not been permanent and have been leaving prior the agreed time when hired. The target number of participants was never obtained and thus the data set is incomplete.

ArmMeasureGroupValue (MEAN)
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in International Knee Documentation Committee (IKDC) Subjective Knee FormBaseline41.4 units on a scale
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in International Knee Documentation Committee (IKDC) Subjective Knee Form2-Week Post-op50.6 units on a scale
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in International Knee Documentation Committee (IKDC) Subjective Knee Form6-Week Post-op63.8 units on a scale
Secondary

Change in Knee Injury and Osteoarthritis Outcome (KOOS) Function in Daily Living (ADL)

Questions related to function in daily living Scale range: 0-100 points (100 indicating no symptoms and 0 indicating extreme symptoms)

Time frame: Baseline, 2-Week post-op, 6-Week post-op

Population: Due to COVID, recruiting patients was difficult and thus the study has been suspended. To add to that difficulty, RAs have not been permanent and have been leaving prior the agreed time when hired. The target number of participants was never obtained and thus the data set is incomplete.

ArmMeasureGroupValue (MEAN)
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Knee Injury and Osteoarthritis Outcome (KOOS) Function in Daily Living (ADL)Baseline56 score on a scale
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Knee Injury and Osteoarthritis Outcome (KOOS) Function in Daily Living (ADL)2-Week Post-op75 score on a scale
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Knee Injury and Osteoarthritis Outcome (KOOS) Function in Daily Living (ADL)6-Week Post-op90.5 score on a scale
Secondary

Change in Knee Injury and Osteoarthritis Outcome (KOOS) Function in Sport and Recreation (Sport/Rec)

Questions related to function in sport and recreation Scale range: 0-100 points (100 indicating no symptoms and 0 indicating extreme symptoms)

Time frame: Baseline, 2-Week post-op, 6-Week post-op

Population: Due to COVID, recruiting patients was difficult and thus the study has been suspended. To add to that difficulty, RAs have not been permanent and have been leaving prior the agreed time when hired. The target number of participants was never obtained and thus the data set is incomplete.

ArmMeasureGroupValue (MEAN)
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Knee Injury and Osteoarthritis Outcome (KOOS) Function in Sport and Recreation (Sport/Rec)Baseline27.5 score on a scale
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Knee Injury and Osteoarthritis Outcome (KOOS) Function in Sport and Recreation (Sport/Rec)2-week Post-Op45 score on a scale
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Knee Injury and Osteoarthritis Outcome (KOOS) Function in Sport and Recreation (Sport/Rec)6-Week Post-Op57.5 score on a scale
Secondary

Change in Knee Injury and Osteoarthritis Outcome (KOOS) Quality of Life (QOL)

Questions related to knee-related quality of life Scale range: 0-100 points (100 indicating no symptoms and 0 indicating extreme symptoms)

Time frame: Baseline, 2-Week post-op, 6-Week post-op

Population: Due to COVID, recruiting patients was difficult and thus the study has been suspended. To add to that difficulty, RAs have not been permanent and have been leaving prior the agreed time when hired. The target number of participants was never obtained and thus the data set is incomplete.

ArmMeasureGroupValue (MEAN)
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Knee Injury and Osteoarthritis Outcome (KOOS) Quality of Life (QOL)Baseline34.5 score on a scale
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Knee Injury and Osteoarthritis Outcome (KOOS) Quality of Life (QOL)2-Week Post-op44 score on a scale
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Knee Injury and Osteoarthritis Outcome (KOOS) Quality of Life (QOL)6-Week Post-op56.5 score on a scale
Secondary

Change in Knee Injury and Osteoarthritis Outcome (KOOS) Symptoms

Questions related to other knee symptoms other than pain Scale range: 0-100 points (100 indicating no symptoms and 0 indicating extreme symptoms)

Time frame: Baseline, 2-Week post-op, 6-Week post-op

Population: Due to COVID, recruiting patients was difficult and thus the study has been suspended. To add to that difficulty, RAs have not been permanent and have been leaving prior the agreed time when hired. The target number of participants was never obtained and thus the data set is incomplete.

ArmMeasureGroupValue (MEAN)
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Knee Injury and Osteoarthritis Outcome (KOOS) SymptomsBaseline51.5 score on a scale
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Knee Injury and Osteoarthritis Outcome (KOOS) Symptoms2-Week Post-op75 score on a scale
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Knee Injury and Osteoarthritis Outcome (KOOS) Symptoms6-Week Post-op82.5 score on a scale
Secondary

Change in Marx Activity Rating Scale

Measures frequency of activity in healthiest and most active state during past year Includes four knee functions, each rated 0-4 total scale range 0-16 (higher score indicates more frequent participation/activity)

Time frame: Baseline, 2-Week post-op, 6-Week post-op

Population: Due to COVID, recruiting patients was difficult and thus the study has been suspended. To add to that difficulty, RAs have not been permanent and have been leaving prior the agreed time when hired. The target number of participants was never obtained and thus the data set is incomplete.

ArmMeasureGroupValue (MEAN)
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Marx Activity Rating ScaleBaseline3.5 score on a scale
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Marx Activity Rating Scale2-Week Post-op0 score on a scale
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Marx Activity Rating Scale6-Week Post-op4 score on a scale
Secondary

Change in Numerical Pain Rating Scale (NPRS)

Numerical pain rating scale for pain in knee (0-10) (0: no pain - 10: worst pain imaginable)

Time frame: Baseline, 2-Week post-op, 6-Week post-op

Population: Due to COVID, recruiting patients was difficult and thus the study has been suspended. To add to that difficulty, RAs have not been permanent and have been leaving prior the agreed time when hired. The target number of participants was never obtained and thus the data set is incomplete.

ArmMeasureGroupValue (MEAN)
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Numerical Pain Rating Scale (NPRS)Baseline5.5 score on a scale
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Numerical Pain Rating Scale (NPRS)2-Week Post-op2 score on a scale
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Numerical Pain Rating Scale (NPRS)6-Week Post-op2.5 score on a scale
Secondary

Change in Patient-Reported Outcomes Measurement Information System Global-10 Short Form (PROMIS-10)

10-item questionnaire with nine 5-point (as well as a single 11-point) rating scales. The results are used to calculate two summary scores: a Global Physical Health Score and a Global Mental Health score. These scores are then standardized to the general population, using the T-Score. The average T-Score for the United States population is 50 points, with a standard deviation of 10 points. Higher scores indicate a healthier patient. 11-point scale question recalculated to a 5 point scale. only 8 of 10 questions used for scoring calculations (Each sub-score is generated by 4/8 questions) - 4Qs, 5 points each Scale from 0-20 to calculate Global Mental Health Raw Score (higher score means better outcome) Scale from 0-20 to calculate Global Physical Health Raw Score (higher score means better outcome) The raw scores are then standardized to general population using the T-score: Global physical health t-score range: 16.2-67.7 Global mental health t-score range: 21.2-67.6

Time frame: Baseline, 2-Week post-op, 6-Week post-op

Population: Due to COVID, recruiting patients was difficult and thus the study has been suspended. To add to that difficulty, RAs have not been permanent and have been leaving prior the agreed time when hired. The target number of participants was never obtained and thus the data set is incomplete.

ArmMeasureGroupValue (MEAN)
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Patient-Reported Outcomes Measurement Information System Global-10 Short Form (PROMIS-10)Baseline (Global Physical Health Score)45 T-score
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Patient-Reported Outcomes Measurement Information System Global-10 Short Form (PROMIS-10)Baseline (Global Mental Health Score)52.15 T-score
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Patient-Reported Outcomes Measurement Information System Global-10 Short Form (PROMIS-10)2-Week Post-op (Global Physical Health Score)47.7 T-score
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Patient-Reported Outcomes Measurement Information System Global-10 Short Form (PROMIS-10)2-Week Post-op (Global Mental Health Score)56.0 T-score
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Patient-Reported Outcomes Measurement Information System Global-10 Short Form (PROMIS-10)6-Week Post-op (Global Physical Health Score)49.25 T-score
Knee Arthroscopy + Adipose Derived Stem Cells (ADSC)Change in Patient-Reported Outcomes Measurement Information System Global-10 Short Form (PROMIS-10)6-Week Post-Op (Global Mental Health Score)48.3 T-score

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026