Trial Outcomes & Findings for Comparing the Effectiveness of Repairing Versus Replacing the Heart's Mitral Valve in People With Severe Chronic Ischemic Mitral Regurgitation (NCT NCT00807040)

NCT ID: NCT00807040

Last Updated: 2019-03-15

Results Overview

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

251 participants

Primary outcome timeframe

Measured at Month 12

Results posted on

2019-03-15

Participant Flow

Participant milestones

Participant milestones
Measure
Mitral Valve Repair With Annuloplasty
Participants will undergo mitral valve repair with annuloplasty and a sub-valvular procedure for severe tethering. Mitral Valve Repair with Annuloplasty: The annuloplasty ring will be chosen by the surgeon. The ring is sized to the anterior leaflet and intertrigonal distance. A semi-rigid or rigid annuloplasty ring will be used, and if tethering is present, a subvalvar procedure will be performed.
Mitral Valve Replacement
Participants will undergo mitral valve replacement and complete preservation of the sub-valvular apparatus. Mitral Valve Replacement: Mitral valve replacement will include complete preservation of the subvalvar apparatus. The technique of preservation, choice of prosthetic valve, and technique of suture placement will be dependent on the surgeon's preference. The prosthetic valve will be tested for paravalvular leaks by using the left ventricular saline infusion test.
Overall Study
STARTED
126
125
Overall Study
COMPLETED
90
84
Overall Study
NOT COMPLETED
36
41

Reasons for withdrawal

Reasons for withdrawal
Measure
Mitral Valve Repair With Annuloplasty
Participants will undergo mitral valve repair with annuloplasty and a sub-valvular procedure for severe tethering. Mitral Valve Repair with Annuloplasty: The annuloplasty ring will be chosen by the surgeon. The ring is sized to the anterior leaflet and intertrigonal distance. A semi-rigid or rigid annuloplasty ring will be used, and if tethering is present, a subvalvar procedure will be performed.
Mitral Valve Replacement
Participants will undergo mitral valve replacement and complete preservation of the sub-valvular apparatus. Mitral Valve Replacement: Mitral valve replacement will include complete preservation of the subvalvar apparatus. The technique of preservation, choice of prosthetic valve, and technique of suture placement will be dependent on the surgeon's preference. The prosthetic valve will be tested for paravalvular leaks by using the left ventricular saline infusion test.
Overall Study
Death
24
29
Overall Study
Withdrawal by Subject
8
6
Overall Study
Lost to Follow-up
4
6

Baseline Characteristics

Comparing the Effectiveness of Repairing Versus Replacing the Heart's Mitral Valve in People With Severe Chronic Ischemic Mitral Regurgitation

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Mitral Valve Repair With Annuloplasty
n=126 Participants
Participants will undergo mitral valve repair with annuloplasty and a sub-valvular procedure for severe tethering. Mitral Valve Repair with Annuloplasty: The annuloplasty ring will be chosen by the surgeon. The ring is sized to the anterior leaflet and intertrigonal distance. A semi-rigid or rigid annuloplasty ring will be used, and if tethering is present, a subvalvar procedure will be performed.
Mitral Valve Replacement
n=125 Participants
Participants will undergo mitral valve replacement and complete preservation of the sub-valvular apparatus. Mitral Valve Replacement: Mitral valve replacement will include complete preservation of the subvalvar apparatus. The technique of preservation, choice of prosthetic valve, and technique of suture placement will be dependent on the surgeon's preference. The prosthetic valve will be tested for paravalvular leaks by using the left ventricular saline infusion test.
Total
n=251 Participants
Total of all reporting groups
Race (NIH/OMB)
Asian
1 Participants
n=5 Participants
1 Participants
n=7 Participants
2 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
20 Participants
n=5 Participants
24 Participants
n=7 Participants
44 Participants
n=5 Participants
Race (NIH/OMB)
White
104 Participants
n=5 Participants
98 Participants
n=7 Participants
202 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
1 Participants
n=5 Participants
1 Participants
n=7 Participants
2 Participants
n=5 Participants
Region of Enrollment
Canada
25 Participants
n=5 Participants
26 Participants
n=7 Participants
51 Participants
n=5 Participants
Region of Enrollment
United States
101 Participants
n=5 Participants
99 Participants
n=7 Participants
200 Participants
n=5 Participants
Age, Continuous
68.9 years
STANDARD_DEVIATION 10.2 • n=5 Participants
67.9 years
STANDARD_DEVIATION 9.0 • n=7 Participants
68.4 years
STANDARD_DEVIATION 9.6 • n=5 Participants
Sex: Female, Male
Female
49 Participants
n=5 Participants
47 Participants
n=7 Participants
96 Participants
n=5 Participants
Sex: Female, Male
Male
77 Participants
n=5 Participants
78 Participants
n=7 Participants
155 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
13 Participants
n=5 Participants
11 Participants
n=7 Participants
24 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
113 Participants
n=5 Participants
114 Participants
n=7 Participants
227 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Measured at Month 12

Outcome measures

Outcome measures
Measure
Mitral Valve Repair With Annuloplasty
n=126 Participants
Participants will undergo mitral valve repair with annuloplasty and a sub-valvular procedure for severe tethering. Mitral Valve Repair with Annuloplasty: The annuloplasty ring will be chosen by the surgeon. The ring is sized to the anterior leaflet and intertrigonal distance. A semi-rigid or rigid annuloplasty ring will be used, and if tethering is present, a subvalvar procedure will be performed.
Mitral Valve Replacement
n=125 Participants
Participants will undergo mitral valve replacement and complete preservation of the sub-valvular apparatus. Mitral Valve Replacement: Mitral valve replacement will include complete preservation of the subvalvar apparatus. The technique of preservation, choice of prosthetic valve, and technique of suture placement will be dependent on the surgeon's preference. The prosthetic valve will be tested for paravalvular leaks by using the left ventricular saline infusion test.
Degree of Left Ventricular Remodeling, as Assessed by Left Ventricular End Systolic Volume Index (LVESVI)
54.6 ml per square meter of body-surface area
Standard Deviation 25.0
60.7 ml per square meter of body-surface area
Standard Deviation 31.5

SECONDARY outcome

Timeframe: Measured at Month 24

Outcome measures

Outcome measures
Measure
Mitral Valve Repair With Annuloplasty
n=126 Participants
Participants will undergo mitral valve repair with annuloplasty and a sub-valvular procedure for severe tethering. Mitral Valve Repair with Annuloplasty: The annuloplasty ring will be chosen by the surgeon. The ring is sized to the anterior leaflet and intertrigonal distance. A semi-rigid or rigid annuloplasty ring will be used, and if tethering is present, a subvalvar procedure will be performed.
Mitral Valve Replacement
n=125 Participants
Participants will undergo mitral valve replacement and complete preservation of the sub-valvular apparatus. Mitral Valve Replacement: Mitral valve replacement will include complete preservation of the subvalvar apparatus. The technique of preservation, choice of prosthetic valve, and technique of suture placement will be dependent on the surgeon's preference. The prosthetic valve will be tested for paravalvular leaks by using the left ventricular saline infusion test.
All-cause Mortality
24 Participants
29 Participants

Adverse Events

Mitral Valve Repair With Annuloplasty

Serious events: 89 serious events
Other events: 33 other events
Deaths: 24 deaths

Mitral Valve Replacement

Serious events: 88 serious events
Other events: 44 other events
Deaths: 29 deaths

Serious adverse events

Serious adverse events
Measure
Mitral Valve Repair With Annuloplasty
n=126 participants at risk
Participants will undergo mitral valve repair with annuloplasty and a sub-valvular procedure for severe tethering. Mitral Valve Repair with Annuloplasty: The annuloplasty ring will be chosen by the surgeon. The ring is sized to the anterior leaflet and intertrigonal distance. A semi-rigid or rigid annuloplasty ring will be used, and if tethering is present, a subvalvar procedure will be performed.
Mitral Valve Replacement
n=125 participants at risk
Participants will undergo mitral valve replacement and complete preservation of the sub-valvular apparatus. Mitral Valve Replacement: Mitral valve replacement will include complete preservation of the subvalvar apparatus. The technique of preservation, choice of prosthetic valve, and technique of suture placement will be dependent on the surgeon's preference. The prosthetic valve will be tested for paravalvular leaks by using the left ventricular saline infusion test.
Blood and lymphatic system disorders
Bleeding
4.8%
6/126 • Number of events 7 • 2 years
8.0%
10/125 • Number of events 10 • 2 years
Cardiac disorders
Arrhythmias - Sustained ventricular arrhythmia
7.9%
10/126 • Number of events 12 • 2 years
9.6%
12/125 • Number of events 17 • 2 years
Cardiac disorders
Arrhythmias - Sustained supraventricular arrhythmia
18.3%
23/126 • Number of events 26 • 2 years
14.4%
18/125 • Number of events 19 • 2 years
Cardiac disorders
Pericardial Fluid Collection
0.79%
1/126 • Number of events 1 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Hepatobiliary disorders
Hepatic Dysfunction
4.0%
5/126 • Number of events 5 • 2 years
4.0%
5/125 • Number of events 5 • 2 years
Infections and infestations
Major Infection - Localized
16.7%
21/126 • Number of events 25 • 2 years
16.8%
21/125 • Number of events 29 • 2 years
Infections and infestations
Major Infection - Endocarditis
0.00%
0/126 • 2 years
1.6%
2/125 • Number of events 2 • 2 years
Infections and infestations
Major Infection - Sepsis
8.7%
11/126 • Number of events 12 • 2 years
4.8%
6/125 • Number of events 6 • 2 years
Cardiac disorders
Myocardial infarction
3.2%
4/126 • Number of events 5 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Cardiac disorders
Myocardial infarction - Peri-CABG MI
0.00%
0/126 • 2 years
1.6%
2/125 • Number of events 2 • 2 years
Nervous system disorders
Neurological Dysfunction - TIA
0.00%
0/126 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Nervous system disorders
Neurological Dysfunction - CVA-Ischemic
6.3%
8/126 • Number of events 10 • 2 years
4.8%
6/125 • Number of events 6 • 2 years
Nervous system disorders
Neurological Dysfunction - CVA-Hemorrhagic
1.6%
2/126 • Number of events 2 • 2 years
0.00%
0/125 • 2 years
Nervous system disorders
Neurological Dysfunction - Toxic Metabolic Encephalopathy
1.6%
2/126 • Number of events 3 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Nervous system disorders
Neurological Dysfunction - Other
3.2%
4/126 • Number of events 4 • 2 years
1.6%
2/125 • Number of events 2 • 2 years
Renal and urinary disorders
Renal dysfunction (no dialysis)
3.2%
4/126 • Number of events 4 • 2 years
5.6%
7/125 • Number of events 7 • 2 years
Renal and urinary disorders
Renal failure (dialysis)
4.8%
6/126 • Number of events 6 • 2 years
8.8%
11/125 • Number of events 11 • 2 years
Respiratory, thoracic and mediastinal disorders
Respiratory Failure
9.5%
12/126 • Number of events 14 • 2 years
14.4%
18/125 • Number of events 19 • 2 years
Cardiac disorders
Heart Failure
23.8%
30/126 • Number of events 48 • 2 years
18.4%
23/125 • Number of events 29 • 2 years
Vascular disorders
Venous Thromboembolism Event
3.2%
4/126 • Number of events 4 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Skin and subcutaneous tissue disorders
Wound Dehiscence
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Respiratory, thoracic and mediastinal disorders
Pleural Effusion
9.5%
12/126 • Number of events 15 • 2 years
6.4%
8/125 • Number of events 9 • 2 years
Respiratory, thoracic and mediastinal disorders
Pneumothorax
2.4%
3/126 • Number of events 3 • 2 years
1.6%
2/125 • Number of events 2 • 2 years
Gastrointestinal disorders
Abdominal pain
0.00%
0/126 • 2 years
1.6%
2/125 • Number of events 2 • 2 years
Nervous system disorders
Altered Mental Status
0.79%
1/126 • Number of events 1 • 2 years
0.80%
1/125 • Number of events 2 • 2 years
Blood and lymphatic system disorders
Anemia
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Vascular disorders
Aortic Disease
0.00%
0/126 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Cardiac disorders
Arrhythmia - Undifferentiated
7.1%
9/126 • Number of events 9 • 2 years
5.6%
7/125 • Number of events 7 • 2 years
Musculoskeletal and connective tissue disorders
Broken bone
4.0%
5/126 • Number of events 6 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Respiratory, thoracic and mediastinal disorders
COPD exacerbation
2.4%
3/126 • Number of events 3 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Cancer
0.79%
1/126 • Number of events 1 • 2 years
4.8%
6/125 • Number of events 6 • 2 years
Cardiac disorders
Cardiac Arrest
0.00%
0/126 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Cardiac disorders
Cardiac conduction abnormalities requiring permanent pacemaker
0.79%
1/126 • Number of events 1 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Vascular disorders
Carotid Disease
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Cardiac disorders
Chest Pain
2.4%
3/126 • Number of events 13 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Blood and lymphatic system disorders
Coagulopathy/HIT
3.2%
4/126 • Number of events 4 • 2 years
1.6%
2/125 • Number of events 2 • 2 years
Respiratory, thoracic and mediastinal disorders
Collapsed lung
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Gastrointestinal disorders
Dysphagia
0.00%
0/126 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Metabolism and nutrition disorders
Electrolyte imbalance
1.6%
2/126 • Number of events 2 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
General disorders
Failure to thrive
0.00%
0/126 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Injury, poisoning and procedural complications
Fall
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Gastrointestinal disorders
GI Bleed/GI Issue
7.1%
9/126 • Number of events 12 • 2 years
8.0%
10/125 • Number of events 13 • 2 years
Renal and urinary disorders
Hematuria
0.00%
0/126 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Respiratory, thoracic and mediastinal disorders
Hemi-diaphragm paralysis
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Respiratory, thoracic and mediastinal disorders
Hemothorax
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Nervous system disorders
Hypoxic Ischemic Encephalopathy
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Surgical and medical procedures
Inguinal Hernia Surgery
0.00%
0/126 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Surgical and medical procedures
Knee arthroplasty
0.00%
0/126 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Cardiac disorders
Left Atrial Thrombus
3.2%
4/126 • Number of events 4 • 2 years
0.00%
0/125 • 2 years
Cardiac disorders
Orthostatic hypotension
0.00%
0/126 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Cardiac disorders
PM or ICD Implant/Revision
5.6%
7/126 • Number of events 7 • 2 years
4.8%
6/125 • Number of events 7 • 2 years
Gastrointestinal disorders
Pancreatitis
0.79%
1/126 • Number of events 1 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Respiratory, thoracic and mediastinal disorders
Penetrating Thoracic Ulcer
0.00%
0/126 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Vascular disorders
Peripheral arterial disease
1.6%
2/126 • Number of events 2 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Cardiac disorders
Re-Operation for Severe Mitral Valve Leakage
0.00%
0/126 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Respiratory, thoracic and mediastinal disorders
Respiratory Arrest
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Musculoskeletal and connective tissue disorders
Right Hip Pain
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Vascular disorders
Right groin pseudoaneurysm
0.00%
0/126 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
General disorders
SIRS
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Cardiac disorders
Syncope
1.6%
2/126 • Number of events 2 • 2 years
0.80%
1/125 • Number of events 2 • 2 years
Renal and urinary disorders
Urinary retention/obstruction
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Vascular disorders
Vasoplegia
2.4%
3/126 • Number of events 3 • 2 years
4.8%
6/125 • Number of events 6 • 2 years
Ear and labyrinth disorders
Vertigo
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Cardiac disorders
Volume Overload
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Musculoskeletal and connective tissue disorders
non-cardiac musculoskeletal chest pain
0.00%
0/126 • 2 years
0.80%
1/125 • Number of events 1 • 2 years

Other adverse events

Other adverse events
Measure
Mitral Valve Repair With Annuloplasty
n=126 participants at risk
Participants will undergo mitral valve repair with annuloplasty and a sub-valvular procedure for severe tethering. Mitral Valve Repair with Annuloplasty: The annuloplasty ring will be chosen by the surgeon. The ring is sized to the anterior leaflet and intertrigonal distance. A semi-rigid or rigid annuloplasty ring will be used, and if tethering is present, a subvalvar procedure will be performed.
Mitral Valve Replacement
n=125 participants at risk
Participants will undergo mitral valve replacement and complete preservation of the sub-valvular apparatus. Mitral Valve Replacement: Mitral valve replacement will include complete preservation of the subvalvar apparatus. The technique of preservation, choice of prosthetic valve, and technique of suture placement will be dependent on the surgeon's preference. The prosthetic valve will be tested for paravalvular leaks by using the left ventricular saline infusion test.
Blood and lymphatic system disorders
Bleeding
0.00%
0/126 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Cardiac disorders
Arrhythmias - Sustained supraventricular arrhythmia
7.9%
10/126 • Number of events 11 • 2 years
9.6%
12/125 • Number of events 12 • 2 years
Hepatobiliary disorders
Hepatic Dysfunction
1.6%
2/126 • Number of events 2 • 2 years
2.4%
3/125 • Number of events 3 • 2 years
Infections and infestations
Major Infection - Localized
8.7%
11/126 • Number of events 13 • 2 years
13.6%
17/125 • Number of events 21 • 2 years
Cardiac disorders
Myocardial infarction - Peri-Percutaneous Intervention MI
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Nervous system disorders
Neurological Dysfunction - Toxic Metabolic Encephalopathy
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Nervous system disorders
Neurological Dysfunction - Other*
0.00%
0/126 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Renal and urinary disorders
Renal dysfunction (no dialysis)
2.4%
3/126 • Number of events 3 • 2 years
3.2%
4/125 • Number of events 4 • 2 years
Renal and urinary disorders
Renal failure (dialysis)
1.6%
2/126 • Number of events 2 • 2 years
1.6%
2/125 • Number of events 2 • 2 years
Respiratory, thoracic and mediastinal disorders
Respiratory Failure
0.00%
0/126 • 2 years
2.4%
3/125 • Number of events 3 • 2 years
Cardiac disorders
Heart Failure
1.6%
2/126 • Number of events 2 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Vascular disorders
Arterial Non-CNS Thromboembolism
0.00%
0/126 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Vascular disorders
Venous Thromboembolism Event
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Respiratory, thoracic and mediastinal disorders
Pleural Effusion
1.6%
2/126 • Number of events 2 • 2 years
5.6%
7/125 • Number of events 9 • 2 years
Respiratory, thoracic and mediastinal disorders
Pneumothorax
0.00%
0/126 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Renal and urinary disorders
Acute Kidney Injury
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Cardiac disorders
Arrhythmia - Undifferentiated
0.00%
0/126 • 2 years
1.6%
2/125 • Number of events 2 • 2 years
Musculoskeletal and connective tissue disorders
Broken bone
0.00%
0/126 • 2 years
0.80%
1/125 • Number of events 2 • 2 years
Musculoskeletal and connective tissue disorders
Carpal tunnel syndrome
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Blood and lymphatic system disorders
Coagulopathy/HIT
0.00%
0/126 • 2 years
2.4%
3/125 • Number of events 3 • 2 years
Ear and labyrinth disorders
Dizziness
0.00%
0/126 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Metabolism and nutrition disorders
Electrolyte imbalance
0.00%
0/126 • 2 years
0.80%
1/125 • Number of events 1 • 2 years
Gastrointestinal disorders
GI Bleed/GI Issue
1.6%
2/126 • Number of events 2 • 2 years
0.00%
0/125 • 2 years
Eye disorders
Glaucoma
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Blood and lymphatic system disorders
Left groin lymphocele/seroma
0.79%
1/126 • Number of events 1 • 2 years
0.00%
0/125 • 2 years
Renal and urinary disorders
Urinary retention/obstruction
1.6%
2/126 • Number of events 2 • 2 years
0.00%
0/125 • 2 years

Additional Information

Alan Moskowitz, MD

Icahn School of Medicine at Mount Sinai

Phone: 212-659-9568

Results disclosure agreements

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