Trial Outcomes & Findings for Pivotal Aspiration Therapy With Adjusted Lifestyle Therapy Study (NCT NCT01766037)

NCT ID: NCT01766037

Last Updated: 2020-01-27

Results Overview

The first effectiveness co-primary endpoint is the mean percent excess weight loss (%EWL) at 52-weeks. The hypothesis for the first primary effectiveness endpoint is that the difference in the mean percent excess weight loss (%EWL) at 52-weeks for the Aspiration Therapy (AT) group and Control group is at least 10%. Percent EWL is defined as absolute weight loss divided by baseline excess weight and multiplied by 100. Excess weight is determined from ideal body weights based on a BMI=25 kg/m2.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

171 participants

Primary outcome timeframe

52 weeks

Results posted on

2020-01-27

Participant Flow

First Subject Screened Oct 30, 2012; First Subject Enrolled Nov 13, 2012; Last Subject Enrolled June 13, 2014

Participant milestones

Participant milestones
Measure
Aspiration Therapy
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Overall Study
STARTED
111
60
Overall Study
COMPLETED
82
31
Overall Study
NOT COMPLETED
29
29

Reasons for withdrawal

Reasons for withdrawal
Measure
Aspiration Therapy
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Overall Study
Adverse Event
1
0
Overall Study
Lack of Efficacy
1
0
Overall Study
Lost to Follow-up
0
10
Overall Study
Physician Decision
0
1
Overall Study
Withdrawal by Subject
18
16
Overall Study
Moved from area
5
0
Overall Study
medical - unrelated
1
2
Overall Study
nausea / discomfort
3
0

Baseline Characteristics

Pivotal Aspiration Therapy With Adjusted Lifestyle Therapy Study

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Aspiration Therapy
n=111 Participants
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
n=60 Participants
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Total
n=171 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
111 Participants
n=5 Participants
60 Participants
n=7 Participants
171 Participants
n=5 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Continuous
42.4 years
STANDARD_DEVIATION 10.0 • n=5 Participants
46.8 years
STANDARD_DEVIATION 11.6 • n=7 Participants
43.9 years
STANDARD_DEVIATION 10.7 • n=5 Participants
Sex: Female, Male
Female
96 Participants
n=5 Participants
53 Participants
n=7 Participants
149 Participants
n=5 Participants
Sex: Female, Male
Male
15 Participants
n=5 Participants
7 Participants
n=7 Participants
22 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
11 Participants
n=5 Participants
11 Participants
n=7 Participants
22 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
99 Participants
n=5 Participants
49 Participants
n=7 Participants
148 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
33 Participants
n=5 Participants
17 Participants
n=7 Participants
50 Participants
n=5 Participants
Race (NIH/OMB)
White
74 Participants
n=5 Participants
42 Participants
n=7 Participants
116 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
4 Participants
n=5 Participants
1 Participants
n=7 Participants
5 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Region of Enrollment
United States
111 participants
n=5 Participants
60 participants
n=7 Participants
171 participants
n=5 Participants
Baseline Weight
116.9 Kilograms
STANDARD_DEVIATION 21.2 • n=5 Participants
112.8 Kilograms
STANDARD_DEVIATION 16.1 • n=7 Participants
115.4 Kilograms
STANDARD_DEVIATION 19.6 • n=5 Participants

PRIMARY outcome

Timeframe: 52 weeks

Population: Modified Intent To Treat (mITT) population defined as all enrolled subjects

The first effectiveness co-primary endpoint is the mean percent excess weight loss (%EWL) at 52-weeks. The hypothesis for the first primary effectiveness endpoint is that the difference in the mean percent excess weight loss (%EWL) at 52-weeks for the Aspiration Therapy (AT) group and Control group is at least 10%. Percent EWL is defined as absolute weight loss divided by baseline excess weight and multiplied by 100. Excess weight is determined from ideal body weights based on a BMI=25 kg/m2.

Outcome measures

Outcome measures
Measure
Aspiration Therapy
n=111 Participants
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
n=60 Participants
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Mean Percent Excess Weight Loss (%EWL)
31.5 Percent Excess Weight Loss
Standard Deviation 26.7
9.8 Percent Excess Weight Loss
Standard Deviation 15.5

PRIMARY outcome

Timeframe: 52 weeks

Population: Modified Intent To Treat (mITT) population of all enrolled subjects

The second co-primary effectiveness endpoint is that at least 50% of the AT group at 52-weeks achieve \> 25% EWL.

Outcome measures

Outcome measures
Measure
Aspiration Therapy
n=111 Participants
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
n=60 Participants
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
% of Subjects Who Achieve >25% EWL
56.8 Percent of Subjects
Interval 49.0 to 64.5
22.0 Percent of Subjects
Interval 15.3 to 28.1

SECONDARY outcome

Timeframe: 52 weeks

Population: Modified Intent To Treat (mITT) population of all enrolled subjects

i) Mean percent absolute weight loss in AT compared to Control group

Outcome measures

Outcome measures
Measure
Aspiration Therapy
n=111 Participants
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
n=60 Participants
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Mean Percent Total Body Weight Loss
12.1 Percent Total Weight Loss
Standard Deviation 9.6
3.6 Percent Total Weight Loss
Standard Deviation 6.0

SECONDARY outcome

Timeframe: 52 weeks

Population: Modified Intent To Treat (mITT) population of all enrolled subjects

ii) proportion of subjects who achieve ≥10% absolute weight loss in AT compared to Control group

Outcome measures

Outcome measures
Measure
Aspiration Therapy
n=111 Participants
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
n=60 Participants
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Percent of Subjects With ≥10% Total Body Weight Loss
58.6 Percent of Subjects
Interval 50.3 to 66.6
11.9 Percent of Subjects
Interval 5.7 to 21.1

SECONDARY outcome

Timeframe: 52 weeks

Population: Subjects who completed 52 weeks

iii) mean percent change serum lipids (triglyceride, HDL-cholesterol and LDL-cholesterol concentration) in the AT group compared to the control group

Outcome measures

Outcome measures
Measure
Aspiration Therapy
n=82 Participants
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
n=31 Participants
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Mean Percent Change in Serum Lipids
High Density Lipoprotein
8.1 Percent Change
Interval 4.2 to 12.0
1.7 Percent Change
Interval -3.8 to 7.2
Mean Percent Change in Serum Lipids
Low Density Lipoprotein
-4.2 Percent Change
Interval -8.5 to 0.1
-1.8 Percent Change
Interval -8.8 to 5.2
Mean Percent Change in Serum Lipids
Triglycerides
-9.9 Percent Change
Interval -17.7 to -2.0
0.1 Percent Change
Interval -15.9 to 16.1

SECONDARY outcome

Timeframe: 52 weeks

Population: Subjects who completed 52 weeks

iv) mean percent change in systolic and diastolic blood pressures in the AT group compared to the control group

Outcome measures

Outcome measures
Measure
Aspiration Therapy
n=82 Participants
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
n=31 Participants
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Mean Percent Change in Blood Pressure
Systolic Pressure
-1.2 Percent Change
Interval -4.0 to 1.5
-2.5 Percent Change
Interval -5.9 to 0.9
Mean Percent Change in Blood Pressure
Diastolic Pressure
-2.6 Percent Change
Interval -5.2 to 0.1
0.5 Percent Change
Interval -4.1 to 5.2

SECONDARY outcome

Timeframe: 52 weeks

Population: Subjects who completed the Questionnaire at 52 weeks

v) "Impact of Weight on Quality of Life" (IWQOL) questionnaire total score Total score ranges from a minimum of 0 to a maximum of 100. Based on the algorithm developed by Crosby, et.al., patients' IWQOLLite total scores are considered to have shown meaningful improvement from baseline to one year if they increased between 7 and 12 points, depending upon baseline severity in comparison to the normative mean. Normative means for the IWQOL-Lite have been derived from a sample of 534 non-obese individuals who were not enrolled in any weight loss treatment program \[238 women and 296 men with BMI's between 18.5 and 29.9\]. The data presented is the mean change in total score. The AT group demonstrated a mean improvement (increase) in score of 16.3 points, the Control group a mean improvement (increase) of 11.7 points.

Outcome measures

Outcome measures
Measure
Aspiration Therapy
n=81 Participants
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
n=27 Participants
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Mean Change in Score for IWQOL Questionnaire
16.3 score on a scale
Interval 12.5 to 20.1
11.7 score on a scale
Interval 5.5 to 17.9

SECONDARY outcome

Timeframe: 52 weeks

Population: Subjects with Type 2 Diabetes

vi) change in mean hemoglobin A1C (only subjects with T2 diabetes at baseline). Hemoglobin A1C is measured as DCCT%. The change in mean DCCT% from Baseline to Week 52 is reported for this secondary endpoint.

Outcome measures

Outcome measures
Measure
Aspiration Therapy
n=2 Participants
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
n=3 Participants
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Mean Change in Hemoglobin A1C
-2.3 DCCT% change
Interval -3.7 to -0.9
-0.37 DCCT% change
Interval -0.77 to -0.03

SECONDARY outcome

Timeframe: 52 weeks

Population: All A-Tube placement attempts

vii) percent procedural success (defined as successful endoscopic placement of the A-Tube) in all subjects undergoing endoscopy

Outcome measures

Outcome measures
Measure
Aspiration Therapy
n=112 Participants
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Procedural Success
99 Percent Procedural Success

SECONDARY outcome

Timeframe: 52 weeks

Population: Subjects being treated with medications for hypertension

Percent change in the number of medications taken by subjects for hypertension

Outcome measures

Outcome measures
Measure
Aspiration Therapy
n=29 Participants
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
n=20 Participants
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Change in Medication for Hypertension
-53.5 Percent Change in Medications
-9.4 Percent Change in Medications

SECONDARY outcome

Timeframe: 52 weeks

Population: Subjects being treated for high cholesterol

Percent change in the number of medications taken by subjects for dyslipidemia

Outcome measures

Outcome measures
Measure
Aspiration Therapy
n=13 Participants
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
n=12 Participants
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Change in Medications for Dyslipidemia
-23.1 Percent Change in Medications
-7.7 Percent Change in Medications

SECONDARY outcome

Timeframe: 52 weeks

Population: Subjects being treated for Type 2 Diabetes

Percent change in the number of medications taken by subjects for Type 2 Diabetes

Outcome measures

Outcome measures
Measure
Aspiration Therapy
n=3 Participants
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
n=6 Participants
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Change in Medications for Type 2 Diabetes
-33.0 Percent Change in Medications
-14.3 Percent Change in Medications

SECONDARY outcome

Timeframe: 52 weeks

Population: Subjects being treated for hypertension

Percent change in the number of subjects on Hypertension medication

Outcome measures

Outcome measures
Measure
Aspiration Therapy
n=29 Participants
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
n=20 Participants
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Change in Number of Subjects on Hypertension Medication
-62.1 % Change in Subjects on Medication
-10.0 % Change in Subjects on Medication

SECONDARY outcome

Timeframe: 52 weeks

Population: Subjects being treated for high cholesterol

Percent change in the number of subjects on Dyslipidemia medications

Outcome measures

Outcome measures
Measure
Aspiration Therapy
n=13 Participants
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
n=12 Participants
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Change in Number of Subjects on Dyslipidemia Medications
-23.1 % Change in Subjects on Medication
-8.3 % Change in Subjects on Medication

SECONDARY outcome

Timeframe: 52 weeks

Population: Subjects being treated for Type II Diabetes

Percent change in the number of subjects on Diabetes medication

Outcome measures

Outcome measures
Measure
Aspiration Therapy
n=3 Participants
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
n=6 Participants
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Change in Number of Subjects on Diabetes Medication
-33.3 % Change in Subjects on Medication
-16.7 % Change in Subjects on Medication

OTHER_PRE_SPECIFIED outcome

Timeframe: 52 weeks

Population: Modified Intent To Treat (mITT) population of all enrolled subjects

The incidence of procedure-related, device-related, and therapy-related serious adverse events. Also, the development of adverse eating behaviors will be assessed.

Outcome measures

Outcome measures
Measure
Aspiration Therapy
n=111 Participants
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
n=60 Participants
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Safety Outcomes
Serious Adverse Event
3.6 Percent of Subjects
0 Percent of Subjects
Safety Outcomes
Diagnosed Eating Disorder
0 Percent of Subjects
1.7 Percent of Subjects

Adverse Events

Aspiration Therapy

Serious events: 4 serious events
Other events: 93 other events
Deaths: 0 deaths

Lifestyle Therapy

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Aspiration Therapy
n=111 participants at risk
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
n=60 participants at risk
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Surgical and medical procedures
Peritonitis
0.90%
1/111 • Number of events 1 • 52 weeks
0.00%
0/60 • 52 weeks
Gastrointestinal disorders
Abdominal Pain
0.90%
1/111 • Number of events 2 • 52 weeks
0.00%
0/60 • 52 weeks
Gastrointestinal disorders
Prepyloric Ulceration
0.90%
1/111 • Number of events 1 • 52 weeks
0.00%
0/60 • 52 weeks
Surgical and medical procedures
A-Tube Replacement
0.90%
1/111 • Number of events 1 • 52 weeks
0.00%
0/60 • 52 weeks

Other adverse events

Other adverse events
Measure
Aspiration Therapy
n=111 participants at risk
Aspiration Therapy and Lifestyle Therapy Aspiration Therapy (AspireAssist): Use of the AspireAssist device in aspiration therapy Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Lifestyle Therapy
n=60 participants at risk
Lifestyle Therapy only Lifestyle Therapy: Lifestyle therapy is a behavioral, diet and physical activity education program
Skin and subcutaneous tissue disorders
Granulation Tissue
40.5%
45/111 • Number of events 45 • 52 weeks
0.00%
0/60 • 52 weeks
Gastrointestinal disorders
Abdominal Pain (post procedure)
37.8%
42/111 • Number of events 42 • 52 weeks
0.00%
0/60 • 52 weeks
Skin and subcutaneous tissue disorders
Peristomal Discharge
30.6%
34/111 • Number of events 34 • 52 weeks
0.00%
0/60 • 52 weeks
Gastrointestinal disorders
Nausea / Vomiting
18.9%
21/111 • Number of events 21 • 52 weeks
0.00%
0/60 • 52 weeks
Gastrointestinal disorders
Abdominal Discomfort
18.9%
21/111 • Number of events 21 • 52 weeks
0.00%
0/60 • 52 weeks
Infections and infestations
Peristomal Infection
14.4%
16/111 • Number of events 16 • 52 weeks
0.00%
0/60 • 52 weeks
Gastrointestinal disorders
Abdominal Pain (after 4 weeks)
8.1%
9/111 • Number of events 9 • 52 weeks
0.00%
0/60 • 52 weeks
Gastrointestinal disorders
Change in Bowel Habits
4.5%
5/111 • Number of events 5 • 52 weeks
0.00%
0/60 • 52 weeks

Additional Information

VP Regulatory & Quality

Aspire Bariatrics, Inc.

Phone: 484-200-1031

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place