Total Knee Replacement (TKR) significantly improves function, pain, and overall quality of life in patients with end-stage arthritis of the knee. However, studies show that obesity increases complications and costs associated with TKR. The American Academy of Orthopaedic Surgeons (AAOS) clinical guidelines recommend that patients with a BMI > 25kg/m2 lose 5% of their body weight prior to surgery. Consequently, although it is not clear how to patients or providers achieve weight loss in this population, some providers and hospitals decline to perform TKR in patients with obesity. Low Calorie meal replacement diets (LCD) are a feasible way to safely promote short-term weight loss of 8-15% at 3-6 months prior to some elective surgeries.
This is a pilot efficacy study to test whether a short-term program using a 3-month LCD leads to weight loss and improved patient reported and functional outcomes. 75 patients eligible for knee replacement surgery and willing to undergo non-operative weight management treatment at NYU Langone Comprehensive Obesity Center. This study will establish feasibility and weight loss outcomes in preparation for a multicenter effectiveness trial.
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Obesity | Combination Product: LCD Intervention | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 13 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Supportive Care |
Official Title: | A Pilot Study Investigating the Effects of a Three-Month Low Calorie Diet Weight Loss Intervention on Knee Replacement Outcomes |
Actual Study Start Date : | July 1, 2019 |
Estimated Primary Completion Date : | June 2024 |
Estimated Study Completion Date : | June 2026 |
Arm | Intervention/treatment |
---|---|
Experimental: Low Calorie Diet (LCD) diet intervention
In person or video conference
|
Combination Product: LCD Intervention
composed of approximately 1,080 kcal/day, which includes 3 New Direction Meal Replacements containing 200 kcal (27g protein, 12g carbhydrate, 2g fiber), 1 protein bar containing 160 kcal (5 g protein, 18g carbohydrate, 5g fiber, 2g sugar alcohol), and a 350-calorie controlled meal of protein and vegetables that the patient will make on his/ her own.
|
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. To calculate the scores it is necessary to purchase special software. Pricing depends on the number of scores that the researcher needs to calculate.
The eight sections are:
Ages Eligible for Study: | 50 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Exclusion Criteria:
United States, New York | |
NYU Langone Health | |
New York, New York, United States, 10016 |
Tracking Information | |||||
---|---|---|---|---|---|
First Submitted Date ICMJE | June 26, 2019 | ||||
First Posted Date ICMJE | July 10, 2019 | ||||
Last Update Posted Date | April 15, 2021 | ||||
Actual Study Start Date ICMJE | July 1, 2019 | ||||
Estimated Primary Completion Date | June 2024 (Final data collection date for primary outcome measure) | ||||
Current Primary Outcome Measures ICMJE |
|
||||
Original Primary Outcome Measures ICMJE | Same as current | ||||
Change History | |||||
Current Secondary Outcome Measures ICMJE | Not Provided | ||||
Original Secondary Outcome Measures ICMJE | Not Provided | ||||
Current Other Pre-specified Outcome Measures | Not Provided | ||||
Original Other Pre-specified Outcome Measures | Not Provided | ||||
Descriptive Information | |||||
Brief Title ICMJE | Effects of a Three-Month Low Calorie Diet Weight Loss Intervention on Knee Replacement Outcomes | ||||
Official Title ICMJE | A Pilot Study Investigating the Effects of a Three-Month Low Calorie Diet Weight Loss Intervention on Knee Replacement Outcomes | ||||
Brief Summary |
Total Knee Replacement (TKR) significantly improves function, pain, and overall quality of life in patients with end-stage arthritis of the knee. However, studies show that obesity increases complications and costs associated with TKR. The American Academy of Orthopaedic Surgeons (AAOS) clinical guidelines recommend that patients with a BMI > 25kg/m2 lose 5% of their body weight prior to surgery. Consequently, although it is not clear how to patients or providers achieve weight loss in this population, some providers and hospitals decline to perform TKR in patients with obesity. Low Calorie meal replacement diets (LCD) are a feasible way to safely promote short-term weight loss of 8-15% at 3-6 months prior to some elective surgeries. This is a pilot efficacy study to test whether a short-term program using a 3-month LCD leads to weight loss and improved patient reported and functional outcomes. 75 patients eligible for knee replacement surgery and willing to undergo non-operative weight management treatment at NYU Langone Comprehensive Obesity Center. This study will establish feasibility and weight loss outcomes in preparation for a multicenter effectiveness trial. |
||||
Detailed Description | Not Provided | ||||
Study Type ICMJE | Interventional | ||||
Study Phase ICMJE | Not Applicable | ||||
Study Design ICMJE | Allocation: N/A Intervention Model: Single Group Assignment Masking: None (Open Label) Primary Purpose: Supportive Care |
||||
Condition ICMJE | Obesity | ||||
Intervention ICMJE | Combination Product: LCD Intervention
composed of approximately 1,080 kcal/day, which includes 3 New Direction Meal Replacements containing 200 kcal (27g protein, 12g carbhydrate, 2g fiber), 1 protein bar containing 160 kcal (5 g protein, 18g carbohydrate, 5g fiber, 2g sugar alcohol), and a 350-calorie controlled meal of protein and vegetables that the patient will make on his/ her own.
|
||||
Study Arms ICMJE | Experimental: Low Calorie Diet (LCD) diet intervention
In person or video conference
Intervention: Combination Product: LCD Intervention
|
||||
Publications * | Not Provided | ||||
* 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 | Active, not recruiting | ||||
Actual Enrollment ICMJE |
13 | ||||
Original Estimated Enrollment ICMJE |
30 | ||||
Estimated Study Completion Date ICMJE | June 2026 | ||||
Estimated Primary Completion Date | June 2024 (Final data collection date for primary outcome measure) | ||||
Eligibility Criteria ICMJE |
Inclusion Criteria:
Exclusion Criteria:
|
||||
Sex/Gender ICMJE |
|
||||
Ages ICMJE | 50 Years and older (Adult, Older Adult) | ||||
Accepts Healthy Volunteers ICMJE | No | ||||
Contacts ICMJE | Contact information is only displayed when the study is recruiting subjects | ||||
Listed Location Countries ICMJE | United States | ||||
Removed Location Countries | |||||
Administrative Information | |||||
NCT Number ICMJE | NCT04015011 | ||||
Other Study ID Numbers ICMJE | 19-00319 | ||||
Has Data Monitoring Committee | No | ||||
U.S. FDA-regulated Product |
|
||||
IPD Sharing Statement ICMJE | Not Provided | ||||
Responsible Party | NYU Langone Health | ||||
Study Sponsor ICMJE | NYU Langone Health | ||||
Collaborators ICMJE | Not Provided | ||||
Investigators ICMJE | Not Provided | ||||
PRS Account | NYU Langone Health | ||||
Verification Date | April 2021 | ||||
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |