Trial Outcomes & Findings for Apixaban Pharmacokinetics in Bariatric Patients (APB) (NCT NCT02406885)

NCT ID: NCT02406885

Last Updated: 2020-12-22

Results Overview

To determine the durability or change in pharmacokinetics of apixaban in patients with obesity following one of two bariatric surgical procedures. Change in Cmax (ng/ml) between 12 months and baseline.

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

33 participants

Primary outcome timeframe

Baseline and 12 months

Results posted on

2020-12-22

Participant Flow

Participant milestones

Participant milestones
Measure
APB Study: Apixaban Pharmacokinetics in RYGB
To determine the durability or change in pharmacokinetics and pharmacodynamics of apixaban in patients with a body mass index (BMI) of 35 kg/m2 or greater pre vs. post surgery for patients undergoing Roux-en Y gastric bypass (RYGB). Apixaban: New Oral Anticoagulants (NOACs) are currently available for prophylaxis against venous thromboembolism in patients undergoing total hip or knee replacement surgery.
APB Study: Apixaban Pharmacokinetics in VSG
To determine the durability or change in pharmacokinetics and pharmacodynamics of apixaban in patients with a body mass index (BMI) of 35 kg/m2 or greater pre vs. post surgery for patients undergoing vertical sleeve gastrectomy (VSG). Apixaban: New Oral Anticoagulants (NOACs) are currently available for prophylaxis against venous thromboembolism in patients undergoing total hip or knee replacement surgery.
Overall Study
STARTED
17
16
Overall Study
COMPLETED
14
14
Overall Study
NOT COMPLETED
3
2

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Apixaban Pharmacokinetics in Bariatric Patients (APB)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
APB Study: Apixaban Pharmacokinetics in VSG
n=16 Participants
To determine the durability or change in pharmacokinetics and pharmacodynamics of apixaban in patients with a body mass index (BMI) of 35 kg/m2 or greater pre vs. post surgery for patients undergoing vertical sleeve gastrectomy Apixaban: New Oral Anticoagulants (NOACs) are currently available for prophylaxis against venous thromboembolism in patients undergoing total hip or knee replacement surgery.
APB Study: Apixaban Pharmacokinetics in RYGB
n=17 Participants
To determine the durability or change in pharmacokinetics and pharmacodynamics of apixaban in patients with a body mass index (BMI) of 35 kg/m2 or greater pre vs. post surgery for patients undergoing Roux-en Y gastric bypass. Apixaban: New Oral Anticoagulants (NOACs) are currently available for prophylaxis against venous thromboembolism in patients undergoing total hip or knee replacement surgery.
Total
n=33 Participants
Total of all reporting groups
Age, Continuous
45.8 years
STANDARD_DEVIATION 10.6 • n=5 Participants
42 years
STANDARD_DEVIATION 10.2 • n=7 Participants
43.8 years
STANDARD_DEVIATION 10.9 • n=5 Participants
Sex: Female, Male
Female
15 Participants
n=5 Participants
14 Participants
n=7 Participants
29 Participants
n=5 Participants
Sex: Female, Male
Male
1 Participants
n=5 Participants
3 Participants
n=7 Participants
4 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
9 Participants
n=5 Participants
8 Participants
n=7 Participants
17 Participants
n=5 Participants
Race (NIH/OMB)
White
7 Participants
n=5 Participants
7 Participants
n=7 Participants
14 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
2 Participants
n=7 Participants
2 Participants
n=5 Participants
Region of Enrollment
United States
16 Participants
n=5 Participants
17 Participants
n=7 Participants
33 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Baseline and 12 months

To determine the durability or change in pharmacokinetics of apixaban in patients with obesity following one of two bariatric surgical procedures. Change in Cmax (ng/ml) between 12 months and baseline.

Outcome measures

Outcome measures
Measure
APB Study: Apixaban Pharmacokinetics in VSG
n=14 Participants
To determine the durability or change in pharmacokinetics and pharmacodynamics of apixaban in patients with a body mass index (BMI) of 35 kg/m2 or greater pre vs. post surgery for patients undergoing vertical sleeve gastrectomy Apixaban: New Oral Anticoagulants (NOACs) are currently available for prophylaxis against venous thromboembolism in patients undergoing total hip or knee replacement surgery.
APB Study: Apixaban Pharmacokinetics in RYGB
n=14 Participants
To determine the durability or change in pharmacokinetics and pharmacodynamics of apixaban in patients with a body mass index (BMI) of 35 kg/m2 or greater pre vs. post surgery for patients undergoing Roux-en Y gastric bypass. Apixaban: New Oral Anticoagulants (NOACs) are currently available for prophylaxis against venous thromboembolism in patients undergoing total hip or knee replacement surgery.
Change in Pharmacokinetics as Assessed by Cmax (Max Concentration)
5.3 ng/ml
Standard Deviation 19.98
-6.7 ng/ml
Standard Deviation 25.35

PRIMARY outcome

Timeframe: Baseline to 12 months

To determine the durability or change in pharmacokinetics of apixaban in patients with obesity following one of two bariatric surgical procedures. Change in AUC (ng\*h/ml) between 12 months and baseline.

Outcome measures

Outcome measures
Measure
APB Study: Apixaban Pharmacokinetics in VSG
n=14 Participants
To determine the durability or change in pharmacokinetics and pharmacodynamics of apixaban in patients with a body mass index (BMI) of 35 kg/m2 or greater pre vs. post surgery for patients undergoing vertical sleeve gastrectomy Apixaban: New Oral Anticoagulants (NOACs) are currently available for prophylaxis against venous thromboembolism in patients undergoing total hip or knee replacement surgery.
APB Study: Apixaban Pharmacokinetics in RYGB
n=14 Participants
To determine the durability or change in pharmacokinetics and pharmacodynamics of apixaban in patients with a body mass index (BMI) of 35 kg/m2 or greater pre vs. post surgery for patients undergoing Roux-en Y gastric bypass. Apixaban: New Oral Anticoagulants (NOACs) are currently available for prophylaxis against venous thromboembolism in patients undergoing total hip or knee replacement surgery.
Change in Pharmacokinetics as Assessed by Area Under the Curve (AUC)
-168.25 ng*h/ml
Standard Deviation 226.36
-166.34 ng*h/ml
Standard Deviation 264.36

PRIMARY outcome

Timeframe: Baseline and 12 months

Population: This outcome measure was not assessed. Data was not collected.

To determine the durability or change in pharmacokinetics of apixaban in patients with obesity following one of two bariatric surgical procedures.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Baseline and 12 months

To determine the durability or change in pharmacodynamics of apixaban in patients with obesity following one of two bariatric surgical procedures. Reported data is the difference between 12 months and baseline. Factor Xa levels is measured in "percent activity".

Outcome measures

Outcome measures
Measure
APB Study: Apixaban Pharmacokinetics in VSG
n=14 Participants
To determine the durability or change in pharmacokinetics and pharmacodynamics of apixaban in patients with a body mass index (BMI) of 35 kg/m2 or greater pre vs. post surgery for patients undergoing vertical sleeve gastrectomy Apixaban: New Oral Anticoagulants (NOACs) are currently available for prophylaxis against venous thromboembolism in patients undergoing total hip or knee replacement surgery.
APB Study: Apixaban Pharmacokinetics in RYGB
n=14 Participants
To determine the durability or change in pharmacokinetics and pharmacodynamics of apixaban in patients with a body mass index (BMI) of 35 kg/m2 or greater pre vs. post surgery for patients undergoing Roux-en Y gastric bypass. Apixaban: New Oral Anticoagulants (NOACs) are currently available for prophylaxis against venous thromboembolism in patients undergoing total hip or knee replacement surgery.
Change in Pharmacodynamics as Assessed by Factor Xa Levels (Percent Activity)
-7.3 Percent Activity
Standard Deviation 17.8
-15.7 Percent Activity
Standard Deviation 21.03

Adverse Events

APB Study: Apixaban Pharmacokinetics in RYGB

Serious events: 1 serious events
Other events: 1 other events
Deaths: 0 deaths

APB Study: Apixaban Pharmacokinetics in VSG

Serious events: 2 serious events
Other events: 1 other events
Deaths: 1 deaths

Serious adverse events

Serious adverse events
Measure
APB Study: Apixaban Pharmacokinetics in RYGB
n=17 participants at risk
To determine the durability or change in pharmacokinetics and pharmacodynamics of apixaban in patients with a body mass index (BMI) of 35 kg/m2 or greater pre vs. post surgery for patients undergoing Roux-en Y gastric bypass. Apixaban: New Oral Anticoagulants (NOACs) are currently available for prophylaxis against venous thromboembolism in patients undergoing total hip or knee replacement surgery.
APB Study: Apixaban Pharmacokinetics in VSG
n=16 participants at risk
To determine the durability or change in pharmacokinetics and pharmacodynamics of apixaban in patients with a body mass index (BMI) of 35 kg/m2 or greater pre vs. post surgery for patients undergoing vertical sleeve gastrectomy. Apixaban: New Oral Anticoagulants (NOACs) are currently available for prophylaxis against venous thromboembolism in patients undergoing total hip or knee replacement surgery.
Respiratory, thoracic and mediastinal disorders
Pulmonary Emboli
5.9%
1/17 • Number of events 1 • 12 months
0.00%
0/16 • 12 months
Cardiac disorders
Sudden Cardiac Death
0.00%
0/17 • 12 months
6.2%
1/16 • Number of events 1 • 12 months
Gastrointestinal disorders
Bowel Obstruction
0.00%
0/17 • 12 months
6.2%
1/16 • Number of events 1 • 12 months

Other adverse events

Other adverse events
Measure
APB Study: Apixaban Pharmacokinetics in RYGB
n=17 participants at risk
To determine the durability or change in pharmacokinetics and pharmacodynamics of apixaban in patients with a body mass index (BMI) of 35 kg/m2 or greater pre vs. post surgery for patients undergoing Roux-en Y gastric bypass. Apixaban: New Oral Anticoagulants (NOACs) are currently available for prophylaxis against venous thromboembolism in patients undergoing total hip or knee replacement surgery.
APB Study: Apixaban Pharmacokinetics in VSG
n=16 participants at risk
To determine the durability or change in pharmacokinetics and pharmacodynamics of apixaban in patients with a body mass index (BMI) of 35 kg/m2 or greater pre vs. post surgery for patients undergoing vertical sleeve gastrectomy. Apixaban: New Oral Anticoagulants (NOACs) are currently available for prophylaxis against venous thromboembolism in patients undergoing total hip or knee replacement surgery.
General disorders
migraine headache
0.00%
0/17 • 12 months
6.2%
1/16 • Number of events 1 • 12 months
Skin and subcutaneous tissue disorders
Zoster Rash
5.9%
1/17 • Number of events 1 • 12 months
0.00%
0/16 • 12 months

Additional Information

Dr. Brent Petty

The Johns Hopkins University School of Medicine

Phone: 410-955-8181

Results disclosure agreements

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