APSS-33-00: A Multicenter, Pilot Study of Autologous Protein Solution (APS) in Knee Osteoarthritis (OA)

Not Applicable

Completed

Conditions: Osteoarthritis, Knee

Interventions: Device: Saline
Device: APS

Registration Number: NCT02138890

Lead Sponsor: Zimmer Biomet

Brief Summary: This double-blind, multicenter, randomized, controlled trial (RCT) will evaluate the efficacy of a single dose of Autologous Protein Solution (APS) in patients with osteoarthritis (OA) of the knee who have failed at least 1 conservative osteoarthritis (OA) therapy (e.g. physiotherapy, simple analgesics, intra-articular injection).

Detailed Description: A double-blind, multicenter, randomized, controlled trial (RCT) that will evaluate the efficacy of a single dose of Autologous Protein Solution (APS) in patients with Osteoarthritis (OA) of the knee who have failed at least 1 conservative OA therapy (e.g. physiotherapy, simple analgesics, intra-articular injection).

Recruitment & Eligibility

Status: COMPLETED

Sex: All

Target Recruitment: 46

Inclusion Criteria

Male or female ≥40 years and ≤75 years.
Willingness and ability to comply with the study procedures and visit schedules and ability to follow verbal and written instructions.
Diagnosis of knee osteoarthritis (OA) Grade 2 or 3 according to the Kellgren-Lawrence scale
Body mass index (BMI) ≤ 40.
Failed at least 1 conservative OA therapy
Signed an independent ethics committee (IEC) approved informed consent form (ICF).

Main

Exclusion Criteria

Intra-articular Hyaluronic (HA) injection within 6 months- On Day 1 (pre-injection), presence of active infection or abnormal effusion in the knee as noted by a physical examination (e.g., erythema, redness, heat, swelling).
Presence of symptomatic OA in the non-study knee.
Diagnosed with rheumatoid arthritis (RA), Reiter's syndrome, psoriatic arthritis, ankylosing spondylitis, chondromalacia, arthritis secondary to other inflammatory diseases (e.g., inflammatory bowel disease [IBD], sarcoidosis, or amyloidosis) or of metabolic origin.
Diagnosis of isolated patella-femoral joint osteoarthritis.
Valgus/varus deformity judged by the investigator to be clinically significant.
Disease of spine, hip or other lower extremity joints of sufficient degree to affect assessment of the signal knee. Patients with TKR at the contra-lateral knee or THR in either hip may be enrolled provided sufficient pain relief after TKR or THR which does not require additional analgesic relief.
Untreated acute traumatic injury of the index knee.
Presence of a symptomatic meniscal tear in the index knee
Limited daily activity for reasons other than OA.
Presence of surgical hardware or other foreign body in the index knee.

Study & Design

Study Type: INTERVENTIONAL

Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Control	Saline	Saline
APS injection	APS	Autologous Protein Solution

Primary Outcome Measures

Name	Time	Method
Change From Baseline to 6 Months in Pain Measured With WOMAC Questionnaire (Day 1, Week 2, Month 1, 3 and 6)	6 months	The WOMAC LK 3.1 questionnaire is a validated tool commonly used for assessing knee pain, stiffness, and function. The WOMAC LK 3.1 questionnaire has 24 items that the patient addresses about the knee: 5 items on the pain subscale, 2 on the stiffness subscale, and 17 on the physical function subscale. Each item is answered on a 5-point Likert scale, with grading from 0 (none or never) to 4 (extreme or always). A higher score indicates worse pain, stiffness, or functional limitation. The WOMAC pain subscale consisted of five questions scored from 0 to 4. The pain has a range of 0 (no pain) to 20 (maximal pain).
Pain Measured With WOMAC Questionnaire Subscale Pain at Day 1, Week 2, 1 Month, 3 Months, 6 Months and 12 Months.	12 Months	The WOMAC LK 3.1 questionnaire is a validated tool commonly used for assessing knee pain, stiffness, and function. The WOMAC LK 3.1 questionnaire has 24 items that the patient addresses about the knee: 5 items on the pain subscale, 2 on the stiffness subscale, and 17 on the physical function subscale. Each item is answered on a 5-point Likert scale, with grading from 0 (none or never) to 4 (extreme or always). A higher score indicates worse pain, stiffness, or functional limitation. The WOMAC pain subscale consisted of five questions scored from 0 to 4. The pain has a range of 0 (no pain) to 20 (maximal pain).

Secondary Outcome Measures

Name	Time	Method
Pain Measured With Visual Analogue Scale at Day 1, Week 2, 1 Month, 3 Months, 6 Months and 12 Months	12 Months	The Visual Analogue Scale is a common tool for measuring general pain. A 100 mm line is marked from 0 to 10 in 10 mm increments. Knee pain severity is indicated by drawing a vertical mark at the point on the line that best represents the severity of pain. No pain is indicated by the 0 at the far left, and the worst possible pain is indicated by the 100 at the far right.
Social Functioning Measured With Short Form-36 (SF-36) Subscale Social Functioning Questionnaire at Day 1, 6 Months and 12 Months	12 Months	The SF-36 consists of eight scaled scores, which are the weighted sums of the questions in their section. Each scale is directly transformed into a 0-100 scale on the assumption that each question carries equal weight. The lower the score the more disability. The higher the score the less disability i.e., a score of zero is equivalent to maximum disability and a score of 100 is equivalent to no disability.
Stiffness Measured With WOMAC Subscale Stiffness Questionnaire at Day 1, Week 2, 1 Month, 3 Months, 6 Months and 12 Months	12 months	The WOMAC LK 3.1 questionnaire is a validated tool commonly used for assessing knee pain, stiffness, and function. The WOMAC LK 3.1 questionnaire has 24 items that the patient addresses about the knee: 5 items on the pain subscale, 2 on the stiffness subscale, and 17 on the physical function subscale. Each item is answered on a 5-point Likert scale, with grading from 0 (none or never) to 4 (extreme or always). A higher score indicates worse pain, stiffness, or functional limitation. The WOMAC Stiffness subscale consisted of two questions scored from 0 to 4. The Stiffness has a range of 0(no stiffness) to 8 (maximal stiffness)
Function on Daily Living Measured With WOMAC Subscale Questionnaire Physical Functioning at Day 1, Week 2, 1 Month, 3 Months, 6 Months and 12 Months	12 months	The WOMAC LK 3.1 questionnaire is a validated tool commonly used for assessing knee pain, stiffness, and function. The WOMAC LK 3.1 questionnaire has 24 items that the patient addresses about the knee: 5 items on the pain subscale, 2 on the stiffness subscale, and 17 on the physical function subscale. Each item is answered on a 5-point Likert scale, with grading from 0 (none or never) to 4 (extreme or always). A higher score indicates worse pain, stiffness, or functional limitation. The WOMAC Physical Functioning subscale consisted of seventeen questions scored from 0 to 4. The Physical Functioning has a range of 0 (no functional limitation) to 68 (maximal functional limitation)
Symptoms Measured With Knee Injury and Osteoarthritis Outcome Score (KOOS) Subscale Symptoms at Day 1, Week 2, 1 Month, 3 Months, 6 Months and 12 Months	12 months	The KOOS questionnaire is a commonly used instrument to assess the patient's opinion about their knee and associated problems. KOOS consists of 5 subscales: Pain (9 questions), Symptoms (7 questions), Function in daily living (ADL) (17 questions), Function in sport and recreation (Sport/Rec) (5 questions) and knee related Quality of Life (QOL) (4 questions). The previous week is used as the time period for answering the questions. A higher score on the KOOS questionnaire indicates no problems, and 0 indicates extreme problems. Each subscale score is calculated independently. The mean score of the individual items of each subscale is calculated and divided by 4 (the highest possible score for a single answer option). on). Traditionally in orthopedics, 100 indicates no problems and 0 indicates extreme problems. The normalized score is transformed to meet this standard.
Mental Health Measured With Short Form-36 (SF-36) Subscale Mental Health Questionnaire at Day 1, 6 Months and 12 Months	12 Months	The SF-36 consists of eight scaled scores, which are the weighted sums of the questions in their section. Each scale is directly transformed into a 0-100 scale on the assumption that each question carries equal weight. The lower the score the more disability. The higher the score the less disability i.e., a score of zero is equivalent to maximum disability and a score of 100 is equivalent to no disability.
Vitality Measured With Short Form-36 (SF-36) Subscale Vitality Questionnaire at Day 1, 6 Months and 12 Months	12 Months	The SF-36 consists of eight scaled scores, which are the weighted sums of the questions in their section. Each scale is directly transformed into a 0-100 scale on the assumption that each question carries equal weight. The lower the score the more disability. The higher the score the less disability i.e., a score of zero is equivalent to maximum disability and a score of 100 is equivalent to no disability.
Pain as Measured With Knee Injury and Osteoarthritis Outcome Score (KOOS) Subscale Pain at Day 1, Week 2, 1 Month, 3 Months, 6 Months and 12 Months	12 months	The KOOS questionnaire is a commonly used instrument to assess the patient's opinion about their knee and associated problems. KOOS consists of 5 subscales: Pain (9 questions), Symptoms (7 questions), Function in daily living (ADL) (17 questions), Function in sport and recreation (Sport/Rec) (5 questions) and knee related Quality of Life (QOL) (4 questions). The previous week is used as the time period for answering the questions. A higher score on the KOOS questionnaire indicates no problems, and 0 indicates extreme problems. Each subscale score is calculated independently. The mean score of the individual items of each subscale is calculated and divided by 4 (the highest possible score for a single answer option). on). Traditionally in orthopedics, 100 indicates no problems and 0 indicates extreme problems. The normalized score is transformed to meet this standard.
Function in Daily Living Measured With Knee Injury and Osteoarthritis Outcome Score (KOOS) Subscale Function in Daily Living at Day 1, Week 2, 1 Month, 3 Months, 6 Months and 12 Months	12 months	The KOOS questionnaire is a commonly used instrument to assess the patient's opinion about their knee and associated problems. KOOS consists of 5 subscales: Pain (9 questions), Symptoms (7 questions), Function in daily living (ADL) (17 questions), Function in sport and recreation (Sport/Rec) (5 questions) and knee related Quality of Life (QOL) (4 questions). The previous week is used as the time period for answering the questions. A higher score on the KOOS questionnaire indicates no problems, and 0 indicates extreme problems. Each subscale score is calculated independently. The mean score of the individual items of each subscale is calculated and divided by 4 (the highest possible score for a single answer option). on). Traditionally in orthopedics, 100 indicates no problems and 0 indicates extreme problems. The normalized score is transformed to meet this standard.
Role Physical Measured With Short Form-36 (SF-36) Subscale Role Physical Questionnaire at Day 1, 6 Months and 12 Months	12 Months	The SF-36 consists of eight scaled scores, which are the weighted sums of the questions in their section. Each scale is directly transformed into a 0-100 scale on the assumption that each question carries equal weight. The lower the score the more disability. The higher the score the less disability i.e., a score of zero is equivalent to maximum disability and a score of 100 is equivalent to no disability.
Sports and Recreational (Sport/Rec) Activities Measured With Knee Injury and Osteoarthritis Outcome Score (KOOS) Subscale Sport/Rec at Day 1, Week 2, 1 Month, 3 Months, 6 Months and 12 Months	12 months	The KOOS questionnaire is a commonly used instrument to assess the patient's opinion about their knee and associated problems. KOOS consists of 5 subscales: Pain (9 questions), Symptoms (7 questions), Function in daily living (ADL) (17 questions), Function in sport and recreation (Sport/Rec) (5 questions) and knee related Quality of Life (QOL) (4 questions). The previous week is used as the time period for answering the questions. A higher score on the KOOS questionnaire indicates no problems, and 0 indicates extreme problems. Each subscale score is calculated independently. The mean score of the individual items of each subscale is calculated and divided by 4 (the highest possible score for a single answer option). on). Traditionally in orthopedics, 100 indicates no problems and 0 indicates extreme problems. The normalized score is transformed to meet this standard.
Quality of Life Measured With Knee Injury and Osteoarthritis Outcome Score (KOOS) Subscale Quality of Life Questionnaire at Day 1, Week 2, 1 Month, 3 Months, 6 Months and 12 Months	12 months	The KOOS questionnaire is a commonly used instrument to assess the patient's opinion about their knee and associated problems. KOOS consists of 5 subscales: Pain (9 questions), Symptoms (7 questions), Function in daily living (ADL) (17 questions), Function in sport and recreation (Sport/Rec) (5 questions) and knee related Quality of Life (QOL) (4 questions). The previous week is used as the time period for answering the questions. A higher score on the KOOS questionnaire indicates no problems, and 0 indicates extreme problems. Each subscale score is calculated independently. The mean score of the individual items of each subscale is calculated and divided by 4 (the highest possible score for a single answer option). on). Traditionally in orthopedics, 100 indicates no problems and 0 indicates extreme problems. The normalized score is transformed to meet this standard.
Role Emotional Measured With Short Form-36 (SF-36) Subscale Role Emotional Questionnaire at Day 1, 6 Months and 12 Months	12 Months	The SF-36 consists of eight scaled scores, which are the weighted sums of the questions in their section. Each scale is directly transformed into a 0-100 scale on the assumption that each question carries equal weight. The lower the score the more disability. The higher the score the less disability i.e., a score of zero is equivalent to maximum disability and a score of 100 is equivalent to no disability.
Physical Functioning Measured With Short Form-36 (SF-36) Subscale Physical Functioning Questionnaire at Day 1, 6 Months and 12 Months	12 Months	The SF-36 consists of eight scaled scores, which are the weighted sums of the questions in their section. Each scale is directly transformed into a 0-100 scale on the assumption that each question carries equal weight. The lower the score the more disability. The higher the score the less disability i.e., a score of zero is equivalent to maximum disability and a score of 100 is equivalent to no disability. Eight subscales of the Short Form-36 questionnaire are used to derive Physical Component and Mental Component measures
Bodily Pain Measured With Short Form-36 (SF-36) Subscale Bodily Pain Questionnaire at Day 1, 6 Months and 12 Months	12 Months	The SF-36 consists of eight scaled scores, which are the weighted sums of the questions in their section. Each scale is directly transformed into a 0-100 scale on the assumption that each question carries equal weight. The lower the score the more disability. The higher the score the less disability i.e., a score of zero is equivalent to maximum disability and a score of 100 is equivalent to no disability.
General Health Measured With Short Form-36 (SF-36) Subscale General Health Questionnaire at Day 1, 6 Months and 12 Months	12 Months	The SF-36 consists of eight scaled scores, which are the weighted sums of the questions in their section. Each scale is directly transformed into a 0-100 scale on the assumption that each question carries equal weight. The lower the score the more disability. The higher the score the less disability i.e., a score of zero is equivalent to maximum disability and a score of 100 is equivalent to no disability.

Trial Locations

Locations (4): Rizzoli Orthopaedic Institute
🇮🇹
Bologna, Italy
Oslo University
🇳🇴
Oslo, Norway
Krems Hospital
🇦🇹
Krems, Austria
Monica Hospitals
🇧🇪
Antwerp, Belgium