Trial Outcomes & Findings for Lipoprotein-associated Phospholipase A2 (Lp-PLA2) Progenitor Cells and Coronary Atherosclerosis in Humans (NCT NCT01067339)

NCT ID: NCT01067339

Last Updated: 2017-04-18

Results Overview

The change of coronary artery diameter was measured in response to a maximal dose of acetylcholine administered intracoronary during an invasive coronary endothelial function assessment. Percentage change in coronary artery diameter provides a measure of endothelium dependent epicardial function.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

70 participants

Primary outcome timeframe

baseline, six months

Results posted on

2017-04-18

Participant Flow

Subjects were recruited at the Mayo Clinic in Rochester, Minnesota between February 2010 and February 2015.

70 subjects signed informed consent, but 5 subjects withdrew (subject decision) prior to randomization.

Participant milestones

Participant milestones
Measure
Darapladib
Subjects randomized to this arm will receive a darapladib tablet, 160 mg, by mouth, once per day for 6 months.
Placebo
Subjects randomized to this arm will receive a placebo tablet matching the study drug, once per day for 6 months.
Overall Study
STARTED
31
34
Overall Study
COMPLETED
25
29
Overall Study
NOT COMPLETED
6
5

Reasons for withdrawal

Reasons for withdrawal
Measure
Darapladib
Subjects randomized to this arm will receive a darapladib tablet, 160 mg, by mouth, once per day for 6 months.
Placebo
Subjects randomized to this arm will receive a placebo tablet matching the study drug, once per day for 6 months.
Overall Study
Withdrawal by Subject
6
5

Baseline Characteristics

Lipoprotein-associated Phospholipase A2 (Lp-PLA2) Progenitor Cells and Coronary Atherosclerosis in Humans

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Darapladib
n=25 Participants
Subjects randomized to this arm will receive a darapladib tablet, 160 mg, by mouth, once per day for 6 months.
Placebo
n=29 Participants
Subjects randomized to this arm will receive a placebo tablet matching the study drug, once per day for 6 months.
Total
n=54 Participants
Total of all reporting groups
Age, Continuous
55.2 years
STANDARD_DEVIATION 11.7 • n=39 Participants
54.0 years
STANDARD_DEVIATION 10.5 • n=41 Participants
54.5 years
STANDARD_DEVIATION 11.0 • n=35 Participants
Sex: Female, Male
Female
17 Participants
n=39 Participants
26 Participants
n=41 Participants
43 Participants
n=35 Participants
Sex: Female, Male
Male
8 Participants
n=39 Participants
3 Participants
n=41 Participants
11 Participants
n=35 Participants
Region of Enrollment
United States
25 participants
n=39 Participants
29 participants
n=41 Participants
54 participants
n=35 Participants

PRIMARY outcome

Timeframe: baseline, six months

The change of coronary artery diameter was measured in response to a maximal dose of acetylcholine administered intracoronary during an invasive coronary endothelial function assessment. Percentage change in coronary artery diameter provides a measure of endothelium dependent epicardial function.

Outcome measures

Outcome measures
Measure
Darapladib
n=25 Participants
Subjects randomized to this arm will receive a darapladib tablet, 160 mg, by mouth, once per day for 6 months.
Placebo
n=29 Participants
Subjects randomized to this arm will receive a placebo tablet matching the study drug, once per day for 6 months.
Percentage Change in Coronary Artery Diameter
3 % change coronary artery diameter
Interval -9.0 to 15.0
3 % change coronary artery diameter
Interval -12.0 to 19.0

PRIMARY outcome

Timeframe: baseline, six months

The change in coronary blood flow was measured in response to maximal dose of acetylcholine administered intracoronary during an invasive coronary endothelial function assessment. Percentage change in coronary blood flow provides a measure of endothelium dependent microvascular function.

Outcome measures

Outcome measures
Measure
Darapladib
n=25 Participants
Subjects randomized to this arm will receive a darapladib tablet, 160 mg, by mouth, once per day for 6 months.
Placebo
n=29 Participants
Subjects randomized to this arm will receive a placebo tablet matching the study drug, once per day for 6 months.
Percentage Change in Coronary Blood Flow (CBF)
-5 % change coronary blood flow
Interval -24.0 to 54.0
39 % change coronary blood flow
Interval -26.0 to 67.0

Adverse Events

Darapladib

Serious events: 2 serious events
Other events: 6 other events
Deaths: 0 deaths

Placebo

Serious events: 3 serious events
Other events: 16 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Darapladib
n=31 participants at risk
Subjects randomized to this arm will receive a darapladib tablet, 160 mg, by mouth, once per day for 6 months.
Placebo
n=34 participants at risk
Subjects randomized to this arm will receive a placebo tablet matching the study drug, once per day for 6 months.
Cardiac disorders
Chest pain
3.2%
1/31 • Number of events 1 • 6 months
0.00%
0/34 • 6 months
Blood and lymphatic system disorders
Hematoma in groin
0.00%
0/31 • 6 months
5.9%
2/34 • Number of events 2 • 6 months
Cardiac disorders
Angina
3.2%
1/31 • Number of events 1 • 6 months
2.9%
1/34 • Number of events 1 • 6 months

Other adverse events

Other adverse events
Measure
Darapladib
n=31 participants at risk
Subjects randomized to this arm will receive a darapladib tablet, 160 mg, by mouth, once per day for 6 months.
Placebo
n=34 participants at risk
Subjects randomized to this arm will receive a placebo tablet matching the study drug, once per day for 6 months.
Infections and infestations
Cough, chest congestion, viral
0.00%
0/31 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Blood and lymphatic system disorders
Fluid retention
3.2%
1/31 • Number of events 1 • 6 months
0.00%
0/34 • 6 months
Respiratory, thoracic and mediastinal disorders
Dyspnea
3.2%
1/31 • Number of events 1 • 6 months
0.00%
0/34 • 6 months
Infections and infestations
Sinus Infection
6.5%
2/31 • Number of events 2 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Surgical and medical procedures
Overdose
0.00%
0/31 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Infections and infestations
Influenza
3.2%
1/31 • Number of events 1 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Respiratory, thoracic and mediastinal disorders
Pneumonia
0.00%
0/31 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Respiratory, thoracic and mediastinal disorders
Bronchitis
0.00%
0/31 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Skin and subcutaneous tissue disorders
Skin abcess
3.2%
1/31 • Number of events 1 • 6 months
0.00%
0/34 • 6 months
Infections and infestations
Oral Thrush
3.2%
1/31 • Number of events 1 • 6 months
0.00%
0/34 • 6 months
Infections and infestations
Bladder infection
0.00%
0/31 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Blood and lymphatic system disorders
Lower extremity edema
3.2%
1/31 • Number of events 1 • 6 months
0.00%
0/34 • 6 months
Injury, poisoning and procedural complications
Scalp laceration
0.00%
0/31 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Injury, poisoning and procedural complications
Fracture right wrist
0.00%
0/31 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Cardiac disorders
Irregular heart rate
0.00%
0/31 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
General disorders
Sweating around torso about 2 hours after taking study medication
0.00%
0/31 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Product Issues
Allergic reaction
0.00%
0/31 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Product Issues
Hypotension
0.00%
0/31 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Gastrointestinal disorders
Diverticulitis
0.00%
0/31 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Product Issues
Diarrhea
0.00%
0/31 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Musculoskeletal and connective tissue disorders
Bone spur
0.00%
0/31 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Cardiac disorders
Chest discomfort/angina
9.7%
3/31 • Number of events 3 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Infections and infestations
Vaginal yeast infection
0.00%
0/31 • 6 months
5.9%
2/34 • Number of events 2 • 6 months
Gastrointestinal disorders
Abdominal cramping and diarrhea
0.00%
0/31 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Product Issues
Muscle aches
0.00%
0/31 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Nervous system disorders
Inpatient psychiatric admission for pre-existing biolar disorder.
0.00%
0/31 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Cardiac disorders
Myocardial bridge
3.2%
1/31 • Number of events 1 • 6 months
0.00%
0/34 • 6 months
General disorders
Chest pain
0.00%
0/31 • 6 months
5.9%
2/34 • Number of events 2 • 6 months
Musculoskeletal and connective tissue disorders
Fibromyalgia
0.00%
0/31 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Gastrointestinal disorders
Difficulty swallowing medications
0.00%
0/31 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Injury, poisoning and procedural complications
Back pain
0.00%
0/31 • 6 months
2.9%
1/34 • Number of events 1 • 6 months
Cardiac disorders
Anomalous pulmonary vein and tricuspid valve repair
3.2%
1/31 • Number of events 1 • 6 months
0.00%
0/34 • 6 months
Infections and infestations
Kidney infection
3.2%
1/31 • Number of events 1 • 6 months
0.00%
0/34 • 6 months

Additional Information

Amir Lerman, MD

Mayo Clinic

Phone: 507-284-6429

Results disclosure agreements

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