Trial Outcomes & Findings for A Study of the Effects of Inhibiting Platelet Function on Circulating Cancer Cells in Breast Cancer Patients (NCT NCT00263211)

NCT ID: NCT00263211

Last Updated: 2017-03-15

Results Overview

Measured by number of patients who have detectable circulating tumor cells

Recruitment status

TERMINATED

Study phase

PHASE2

Target enrollment

48 participants

Primary outcome timeframe

Week 4

Results posted on

2017-03-15

Participant Flow

This study opened for enrollment in January 6, 2006 and closed enrollment in May 25, 2010

Participant milestones

Participant milestones
Measure
Plavix and Aspirin
Patients will receive a 300 mg loading dose of Plavix on day 1, followed by 75 mg/day, and aspirin 81 mg per day starting day 1. Treatment will be continued until the treating physician elects to resume systemic therapy for the treatment of breast cancer or until unacceptable toxicity is observed. A pill diary will be collected monthly to monitor patients' compliance with the medication regimen.
Observation Only
Observation by treating physician
Overall Study
STARTED
24
24
Overall Study
COMPLETED
19
23
Overall Study
NOT COMPLETED
5
1

Reasons for withdrawal

Reasons for withdrawal
Measure
Plavix and Aspirin
Patients will receive a 300 mg loading dose of Plavix on day 1, followed by 75 mg/day, and aspirin 81 mg per day starting day 1. Treatment will be continued until the treating physician elects to resume systemic therapy for the treatment of breast cancer or until unacceptable toxicity is observed. A pill diary will be collected monthly to monitor patients' compliance with the medication regimen.
Observation Only
Observation by treating physician
Overall Study
Death
1
0
Overall Study
Withdrawal by Subject
3
0
Overall Study
Protocol Violation
1
0
Overall Study
Disease Progression
0
1

Baseline Characteristics

A Study of the Effects of Inhibiting Platelet Function on Circulating Cancer Cells in Breast Cancer Patients

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Plavix and Aspirin
n=24 Participants
Patients will receive a 300 mg loading dose of Plavix on day 1, followed by 75 mg/day, and aspirin 81 mg per day starting day 1. Treatment will be continued until the treating physician elects to resume systemic therapy for the treatment of breast cancer or until unacceptable toxicity is observed. A pill diary will be collected monthly to monitor patients' compliance with the medication regimen.
Observation Only
n=24 Participants
Observation by treating physician
Total
n=48 Participants
Total of all reporting groups
Age, Continuous
50.7 years
STANDARD_DEVIATION 12.01 • n=5 Participants
58.4 years
STANDARD_DEVIATION 12.06 • n=7 Participants
55.79 years
STANDARD_DEVIATION 12.97 • n=5 Participants
Sex: Female, Male
Female
24 Participants
n=5 Participants
24 Participants
n=7 Participants
48 Participants
n=5 Participants
Sex: Female, Male
Male
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Region of Enrollment
United States
24 participants
n=5 Participants
24 participants
n=7 Participants
48 participants
n=5 Participants
The Number of Participants with Detectable Positive Circulating Tumor Cells (CTCs=>1) at Baseline
12 participants
n=5 Participants
18 participants
n=7 Participants
30 participants
n=5 Participants
Human Epidermal Growth Factor Receptor 2 Positivity (HER2+)
8 participants
n=5 Participants
10 participants
n=7 Participants
18 participants
n=5 Participants
Estrogen Receptor Positivity (ER+)
15 participants
n=5 Participants
13 participants
n=7 Participants
28 participants
n=5 Participants
Number of Metastatic Sites
1
8 participants
n=5 Participants
9 participants
n=7 Participants
17 participants
n=5 Participants
Number of Metastatic Sites
2
7 participants
n=5 Participants
7 participants
n=7 Participants
14 participants
n=5 Participants
Number of Metastatic Sites
≥3
9 participants
n=5 Participants
8 participants
n=7 Participants
17 participants
n=5 Participants
Number of Previous Metastatic Chemotherapy Regimens
0
6 participants
n=5 Participants
4 participants
n=7 Participants
10 participants
n=5 Participants
Number of Previous Metastatic Chemotherapy Regimens
1
5 participants
n=5 Participants
8 participants
n=7 Participants
13 participants
n=5 Participants
Number of Previous Metastatic Chemotherapy Regimens
2
4 participants
n=5 Participants
6 participants
n=7 Participants
10 participants
n=5 Participants
Number of Previous Metastatic Chemotherapy Regimens
≥3
9 participants
n=5 Participants
6 participants
n=7 Participants
15 participants
n=5 Participants
Number of Previous Metastatic Endocrine Therapies
0
8 participants
n=5 Participants
11 participants
n=7 Participants
19 participants
n=5 Participants
Number of Previous Metastatic Endocrine Therapies
1
7 participants
n=5 Participants
3 participants
n=7 Participants
10 participants
n=5 Participants
Number of Previous Metastatic Endocrine Therapies
≥2
9 participants
n=5 Participants
10 participants
n=7 Participants
19 participants
n=5 Participants
Number of Participants Concurrently using Trastuzumab
5 participants
n=5 Participants
9 participants
n=7 Participants
14 participants
n=5 Participants
Number of Participants Concurrently using Bisphosphonate
12 participants
n=5 Participants
9 participants
n=7 Participants
21 participants
n=5 Participants
Number of Participants who Smoke
4 participants
n=5 Participants
5 participants
n=7 Participants
9 participants
n=5 Participants

PRIMARY outcome

Timeframe: Week 4

Population: Plavix \& Aspirin arm has 19 evaluable patients. 5 withdrew before 1-month data collection: death n=1 and withdrawal of consent n=1 prior to starting; surgery plans n=1; patient preference n=1; platelet inhibition use n=1; Observation only arm had 23 evaluable patients ; 1 patient withdrew during the first month due to disease progression.

Measured by number of patients who have detectable circulating tumor cells

Outcome measures

Outcome measures
Measure
Plavix and Aspirin
n=19 Participants
Patients will receive a 300 mg loading dose of Plavix on day 1, followed by 75 mg/day, and aspirin 81 mg per day starting day 1. Treatment will be continued until the treating physician elects to resume systemic therapy for the treatment of breast cancer or until unacceptable toxicity is observed. A pill diary will be collected monthly to monitor patients' compliance with the medication regimen.
Observation Only
n=23 Participants
Observation by treating physician
Platelet Inhibition of Circulating Tumor Cells (CTCs) Measured by the Number of Patients With Detectable CTCs
11 participants
15 participants

PRIMARY outcome

Timeframe: Maximum of 6 months

Population: Plavix and Aspirin: 1 patient withdrew consent prior to starting 1 patient died prior to starting

Measured by number of patients who discontinue administration of study drug because of toxicity and the incidence categorized by type.

Outcome measures

Outcome measures
Measure
Plavix and Aspirin
n=22 Participants
Patients will receive a 300 mg loading dose of Plavix on day 1, followed by 75 mg/day, and aspirin 81 mg per day starting day 1. Treatment will be continued until the treating physician elects to resume systemic therapy for the treatment of breast cancer or until unacceptable toxicity is observed. A pill diary will be collected monthly to monitor patients' compliance with the medication regimen.
Observation Only
n=24 Participants
Observation by treating physician
Safety and Tolerability of Aspirin and Plavix Measured by the Number of Patients Who Discontinue the Study Drug
Bleeding (possibly related)
1 participants
0 participants
Safety and Tolerability of Aspirin and Plavix Measured by the Number of Patients Who Discontinue the Study Drug
Back pain (unlikely related)
1 participants
0 participants

SECONDARY outcome

Timeframe: Baseline, 2 weeks and 1 month

Population: Denominator for Plavix \& Aspirin arm at Baseline=22, at 2 weeks =20, at 4 weeks =19 Denominator for Observation only at Baseline=24, at 2 weeks=19, at 4 weeks =23

Percent of patients with a given number/range of CTCs ( 0, 1-5 \>+ 5) vs. time baseline 2-weeks and 1 month for plavix \& Aspirin arm and observation only

Outcome measures

Outcome measures
Measure
Plavix and Aspirin
n=22 Participants
Patients will receive a 300 mg loading dose of Plavix on day 1, followed by 75 mg/day, and aspirin 81 mg per day starting day 1. Treatment will be continued until the treating physician elects to resume systemic therapy for the treatment of breast cancer or until unacceptable toxicity is observed. A pill diary will be collected monthly to monitor patients' compliance with the medication regimen.
Observation Only
n=24 Participants
Observation by treating physician
Percentage of Patients With a Given Absolute Number of Circulating Tumor Cells (Broken Into Categories) Plotted Against Time
Baseline 0 CTCs
40.00 percentage of participants
22.73 percentage of participants
Percentage of Patients With a Given Absolute Number of Circulating Tumor Cells (Broken Into Categories) Plotted Against Time
2 week 0 CTCs
45.00 percentage of participants
40.00 percentage of participants
Percentage of Patients With a Given Absolute Number of Circulating Tumor Cells (Broken Into Categories) Plotted Against Time
1 month 0 CTCs
41.18 percentage of participants
35.00 percentage of participants
Percentage of Patients With a Given Absolute Number of Circulating Tumor Cells (Broken Into Categories) Plotted Against Time
Baseline 1-5 CTCs
45.00 percentage of participants
63.64 percentage of participants
Percentage of Patients With a Given Absolute Number of Circulating Tumor Cells (Broken Into Categories) Plotted Against Time
2 weeks 1-5 CTCs
31.58 percentage of participants
45.00 percentage of participants
Percentage of Patients With a Given Absolute Number of Circulating Tumor Cells (Broken Into Categories) Plotted Against Time
1 month 1-5 CTCs
52.94 percentage of participants
55.00 percentage of participants
Percentage of Patients With a Given Absolute Number of Circulating Tumor Cells (Broken Into Categories) Plotted Against Time
Baseline >=5 CTS
15.00 percentage of participants
13.64 percentage of participants
Percentage of Patients With a Given Absolute Number of Circulating Tumor Cells (Broken Into Categories) Plotted Against Time
2 weeks >=5 CTCs
21.05 percentage of participants
15.00 percentage of participants
Percentage of Patients With a Given Absolute Number of Circulating Tumor Cells (Broken Into Categories) Plotted Against Time
1 month >=5 CTCs
5.88 percentage of participants
10.00 percentage of participants

SECONDARY outcome

Timeframe: Baseline, 2 weeks and 1 month

Population: Denominator for Plavix \& Aspirin arm baseline n=22, 2 weeks n=20, 1 month n=19 Denominator for Observation only arm baseline n=24 , 2-weeks n=19, 1 month n=23

Mean platelet inhibition vs. time plotted for Plavix \& Aspirin Arm and Observation group. Citrated whole blood is added to a test carriage containing fibrinogen-coated beads and a platelet activator (arachidonic acid to synthesize thromboxane A2). Using a turbidimetric-based optical detection system, aggregation of activated platelets to fibrinogen-coated beads increase light transmittance which is reported in Aspirin Reaction Units (ARU).

Outcome measures

Outcome measures
Measure
Plavix and Aspirin
n=22 Participants
Patients will receive a 300 mg loading dose of Plavix on day 1, followed by 75 mg/day, and aspirin 81 mg per day starting day 1. Treatment will be continued until the treating physician elects to resume systemic therapy for the treatment of breast cancer or until unacceptable toxicity is observed. A pill diary will be collected monthly to monitor patients' compliance with the medication regimen.
Observation Only
n=24 Participants
Observation by treating physician
Mean Aspirin-Mediated Platelet Inhibition vs. Time Plotted for Plavix and Aspirin and Observation Groups
Baseline Aspirin Reaction UnitsARU
610.39 Aspirin Reaction Units
Standard Deviation 57.64
579.81 Aspirin Reaction Units
Standard Deviation 92.10
Mean Aspirin-Mediated Platelet Inhibition vs. Time Plotted for Plavix and Aspirin and Observation Groups
2 weeks ARU
435.33 Aspirin Reaction Units
Standard Deviation 56.50
578.35 Aspirin Reaction Units
Standard Deviation 151.10
Mean Aspirin-Mediated Platelet Inhibition vs. Time Plotted for Plavix and Aspirin and Observation Groups
1 month ARU
455.44 Aspirin Reaction Units
Standard Deviation 94.70
593.58 Aspirin Reaction Units
Standard Deviation 88.81

SECONDARY outcome

Timeframe: Baseline, 2 weeks and 1 month

Population: Mean Platelet inhibition Denominator for Plavix \& Aspirin arm baseline n=22, 2 weeks n=20, 1 month n=19 Denominator for control group baseline n=24 , 2-weeks n=19, 1 month n=23

Mean Clopidogrel-Mediated platelet inhibition (% inhibition) vs. time for Aspirin and Plavix and Observation groups

Outcome measures

Outcome measures
Measure
Plavix and Aspirin
n=22 Participants
Patients will receive a 300 mg loading dose of Plavix on day 1, followed by 75 mg/day, and aspirin 81 mg per day starting day 1. Treatment will be continued until the treating physician elects to resume systemic therapy for the treatment of breast cancer or until unacceptable toxicity is observed. A pill diary will be collected monthly to monitor patients' compliance with the medication regimen.
Observation Only
n=24 Participants
Observation by treating physician
Clopidogrel-Mediated Percent of Platelet Inhibition vs. Time Plotted for Aspirin and Plavix and Observation Groups
Baseline
9.85 percentage of platelet inhibition
Standard Deviation 16.13
13.00 percentage of platelet inhibition
Standard Deviation 21.93
Clopidogrel-Mediated Percent of Platelet Inhibition vs. Time Plotted for Aspirin and Plavix and Observation Groups
2 weeks
37.35 percentage of platelet inhibition
Standard Deviation 30.38
9.05 percentage of platelet inhibition
Standard Deviation 7.96
Clopidogrel-Mediated Percent of Platelet Inhibition vs. Time Plotted for Aspirin and Plavix and Observation Groups
1 month
35.56 percentage of platelet inhibition
Standard Deviation 30.90
7.05 percentage of platelet inhibition
Standard Deviation 7.07

SECONDARY outcome

Timeframe: Maximum of 6 months

Population: This trial was terminated early due to futility, subjects were not followed for progression free-survival.

Outcome measures

Outcome data not reported

Adverse Events

Plavix and Aspirin

Serious events: 3 serious events
Other events: 24 other events
Deaths: 0 deaths

Observation Only

Serious events: 1 serious events
Other events: 24 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Plavix and Aspirin
n=24 participants at risk
Patients will receive a 300 mg loading dose of Plavix on day 1, followed by 75 mg/day, and aspirin 81 mg per day starting day 1. Treatment will be continued until the treating physician elects to resume systemic therapy for the treatment of breast cancer or until unacceptable toxicity is observed. A pill diary will be collected monthly to monitor patients' compliance with the medication regimen.
Observation Only
n=24 participants at risk
Observation by treating physician
Metabolism and nutrition disorders
Dehydration
4.2%
1/24
4.2%
1/24
Gastrointestinal disorders
Diarrhea
4.2%
1/24
4.2%
1/24
Respiratory, thoracic and mediastinal disorders
Dyspnea
4.2%
1/24
0.00%
0/24
Gastrointestinal disorders
Dysphagia
0.00%
0/24
4.2%
1/24
Blood and lymphatic system disorders
Edema
4.2%
1/24
0.00%
0/24
Gastrointestinal disorders
Nausea
4.2%
1/24
0.00%
0/24
Musculoskeletal and connective tissue disorders
Calf Pain
4.2%
1/24
0.00%
0/24
Infections and infestations
Pneumonia
0.00%
0/24
4.2%
1/24
Gastrointestinal disorders
Vomiting
4.2%
1/24
0.00%
0/24
Gastrointestinal disorders
Mucositis
4.2%
1/24
0.00%
0/24
Gastrointestinal disorders
Esophagitis
4.2%
1/24
0.00%
0/24

Other adverse events

Other adverse events
Measure
Plavix and Aspirin
n=24 participants at risk
Patients will receive a 300 mg loading dose of Plavix on day 1, followed by 75 mg/day, and aspirin 81 mg per day starting day 1. Treatment will be continued until the treating physician elects to resume systemic therapy for the treatment of breast cancer or until unacceptable toxicity is observed. A pill diary will be collected monthly to monitor patients' compliance with the medication regimen.
Observation Only
n=24 participants at risk
Observation by treating physician
Investigations
ALT
16.7%
4/24
0.00%
0/24
Investigations
AST
4.2%
1/24
0.00%
0/24
Metabolism and nutrition disorders
Albumin, serum low
0.00%
0/24
4.2%
1/24
Investigations
Alkaline Phosphate
8.3%
2/24
8.3%
2/24
Metabolism and nutrition disorders
Anorexia
8.3%
2/24
8.3%
2/24
Injury, poisoning and procedural complications
Bruising
37.5%
9/24
0.00%
0/24
Gastrointestinal disorders
Colitis
4.2%
1/24
0.00%
0/24
Gastrointestinal disorders
Constipation
16.7%
4/24
16.7%
4/24
Respiratory, thoracic and mediastinal disorders
Cough
25.0%
6/24
25.0%
6/24
Vascular disorders
Lymphedema
0.00%
0/24
8.3%
2/24
Skin and subcutaneous tissue disorders
Dermatology other-Pruritus
8.3%
2/24
4.2%
1/24
Skin and subcutaneous tissue disorders
Dermatology other-bilateral breast inflammation and discoloration and alopecia
0.00%
0/24
8.3%
2/24
Gastrointestinal disorders
Diarrhea
8.3%
2/24
8.3%
2/24
Nervous system disorders
Dizziness
25.0%
6/24
25.0%
6/24
Respiratory, thoracic and mediastinal disorders
Dyspnea
4.2%
1/24
8.3%
2/24
General disorders
Edema: Limb
20.8%
5/24
20.8%
5/24
General disorders
Edema Head and Neck
0.00%
0/24
4.2%
1/24
General disorders
Edema Trunk/genital
0.00%
0/24
4.2%
1/24
Gastrointestinal disorders
Esophagitis
0.00%
0/24
4.2%
1/24
General disorders
Fatigue
33.3%
8/24
33.3%
8/24
General disorders
Fever
4.2%
1/24
0.00%
0/24
Injury, poisoning and procedural complications
Fracture
0.00%
0/24
4.2%
1/24
Gastrointestinal disorders
Gastritis
12.5%
3/24
12.5%
3/24
Vascular disorders
Hematoma
4.2%
1/24
0.00%
0/24
Blood and lymphatic system disorders
Hemoglobin
29.2%
7/24
29.2%
7/24
Respiratory, thoracic and mediastinal disorders
Hemorrhage Respiratory Nose
8.3%
2/24
0.00%
0/24
Reproductive system and breast disorders
Hemorrhage, GU Vagina
4.2%
1/24
0.00%
0/24
Vascular disorders
Hot Flashes
16.7%
4/24
16.7%
4/24
Metabolism and nutrition disorders
Hypercalcemia
0.00%
0/24
4.2%
1/24
Metabolism and nutrition disorders
Hyperglycemia
25.0%
6/24
25.0%
6/24
Metabolism and nutrition disorders
Hyperkalemia
0.00%
0/24
4.2%
1/24
Metabolism and nutrition disorders
Hypernatremia
0.00%
0/24
8.3%
2/24
Vascular disorders
Hypertension
4.2%
1/24
0.00%
0/24
Metabolism and nutrition disorders
Hypertriglyceridemia
0.00%
0/24
4.2%
1/24
Metabolism and nutrition disorders
Hyperuricemia
12.5%
3/24
0.00%
0/24
Metabolism and nutrition disorders
Hypocalcemia
4.2%
1/24
0.00%
0/24
Metabolism and nutrition disorders
Hypokalemia
0.00%
0/24
4.2%
1/24
Metabolism and nutrition disorders
Hyponatremia
0.00%
0/24
4.2%
1/24
Vascular disorders
Hypotension
4.2%
1/24
0.00%
0/24
Infections and infestations
Infection G 1/2 Normal ANC Pulmonary (Neck NOS)
4.2%
1/24
0.00%
0/24
Infections and infestations
Infection G 1/2 Normal Pulmonary (upper airway)
0.00%
0/24
4.2%
1/24
Infections and infestations
Infection Unknown ANC Auditory /ear (external)
4.2%
1/24
0.00%
0/24
Infections and infestations
Infection Unknown ANC Pulmonary (Pharynx)
0.00%
0/24
4.2%
1/24
Infections and infestations
Infection Unknown ANC Renal (Urinary tract)
4.2%
1/24
0.00%
0/24
Psychiatric disorders
Insomnia
0.00%
0/24
12.5%
3/24
Musculoskeletal and connective tissue disorders
Joint -function
4.2%
1/24
0.00%
0/24
Investigations
Leukocytes
25.0%
6/24
25.0%
6/24
General disorders
Lymphatic other swelling
0.00%
0/24
4.2%
1/24
Investigations
Lymphopenia
20.8%
5/24
20.8%
5/24
Metabolism and nutrition disorders
Metabolic Lab/ Other BUN high
0.00%
0/24
12.5%
3/24
Metabolism and nutrition disorders
Plasma protein low
12.5%
3/24
0.00%
0/24
Psychiatric disorders
Mood Alteration-Anxiety
0.00%
0/24
4.2%
1/24
Gastrointestinal disorders
Nausea
33.3%
8/24
37.5%
9/24
Nervous system disorders
Neuropathy -cranial motor face
0.00%
0/24
4.2%
1/24
Nervous system disorders
Neuropathy -motor
4.2%
1/24
0.00%
0/24
Nervous system disorders
Neuropathy Sensory
25.0%
6/24
25.0%
6/24
Investigations
Neutrophils
12.5%
3/24
12.5%
3/24
Investigations
PTT
0.00%
0/24
8.3%
2/24
Nervous system disorders
Pain Neuralgia/Neuropathy
0.00%
0/24
8.3%
2/24
Gastrointestinal disorders
Pain GI (Abdomen NOS)
8.3%
2/24
8.3%
2/24
Gastrointestinal disorders
Pain GI (stomach)
0.00%
0/24
4.2%
1/24
Musculoskeletal and connective tissue disorders
Back Pain
16.7%
4/24
16.7%
4/24
Musculoskeletal and connective tissue disorders
Bone Pain
0.00%
0/24
8.3%
2/24
Musculoskeletal and connective tissue disorders
Joint Pain
20.8%
5/24
20.8%
5/24
Musculoskeletal and connective tissue disorders
Muscle Pain
8.3%
2/24
8.3%
2/24
Musculoskeletal and connective tissue disorders
Neck Pain
0.00%
0/24
4.2%
1/24
Nervous system disorders
Headache
33.3%
8/24
33.3%
8/24
Musculoskeletal and connective tissue disorders
Hip and Jaw Pain
8.3%
2/24
0.00%
0/24
Respiratory, thoracic and mediastinal disorders
Pain Pulmonary (Chest Thorax NOS)
0.00%
0/24
4.2%
1/24
Investigations
Platelets
4.2%
1/24
0.00%
0/24
Respiratory, thoracic and mediastinal disorders
Pneumonitis
4.2%
1/24
0.00%
0/24
Skin and subcutaneous tissue disorders
Rash acne/acneiforme
4.2%
1/24
0.00%
0/24
Skin and subcutaneous tissue disorders
Rash dermatitis assoc. with reaction : chemo
4.2%
1/24
0.00%
0/24
Skin and subcutaneous tissue disorders
Rash desquamation
0.00%
0/24
4.2%
1/24
Skin and subcutaneous tissue disorders
Rash erythema multiforme
0.00%
0/24
4.2%
1/24
Renal and urinary disorders
Renal (Slight blood in urine/hematuria)
8.3%
2/24
0.00%
0/24
General disorders
Rigors/chills
0.00%
0/24
4.2%
1/24
Reproductive system and breast disorders
Persistent vaginal herpes
4.2%
1/24
0.00%
0/24
Skin and subcutaneous tissue disorders
Skin Breakdown decubitus ulcer
4.2%
1/24
0.00%
0/24
General disorders
Sweating
0.00%
0/24
12.5%
3/24
Ear and labyrinth disorders
Tinnitus
4.2%
1/24
0.00%
0/24
Renal and urinary disorders
Urine color change
8.3%
2/24
8.3%
2/24
Gastrointestinal disorders
Vomiting
0.00%
0/24
16.7%
4/24
Gastrointestinal disorders
Heartburn
0.00%
0/24
12.5%
3/24
Gastrointestinal disorders
Liver Pain
0.00%
0/24
4.2%
1/24

Additional Information

Katherine Weilbacher, M.D,

Department of Medicine Div. of Oncology, Washington University School of Medicine St. Louis MO

Phone: Fax: 314-454-8973

Results disclosure agreements

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