Trial Outcomes & Findings for Utilization of Confocal Microscopy During Cardiac Surgery (NCT NCT03189134)

NCT ID: NCT03189134

Last Updated: 2020-07-07

Results Overview

All adverse events will be collected and relatedness to study intervention will be determined.

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

6 participants

Primary outcome timeframe

Surgery through discharge (approximately 5 days)

Results posted on

2020-07-07

Participant Flow

Participant milestones

Participant milestones
Measure
Imaging Arm
Up to 5mL of 1:1000 dilute FLUORESCITE will be applied to cardiac tissue prior to imaging with Cellvizio 100 Series System with Confocal Miniprobes Fluorescite: Dilute fluorescite will be applied to cardiac tissue prior to imaging Cellvizio 100 Series System with Confocal Miniprobes: Microscopy system will image cardiac tissue.
Overall Study
STARTED
6
Overall Study
COMPLETED
6
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Utilization of Confocal Microscopy During Cardiac Surgery

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Imaging Arm
n=6 Participants
Up to 5mL of 1:1000 dilute FLUORESCITE will be applied to cardiac tissue prior to imaging with Cellvizio 100 Series System with Confocal Miniprobes Fluorescite: Dilute fluorescite will be applied to cardiac tissue prior to imaging Cellvizio 100 Series System with Confocal Miniprobes: Microscopy system will image cardiac tissue.
Age, Categorical
<=18 years
6 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
0 Participants
n=5 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
Sex: Female, Male
Female
4 Participants
n=5 Participants
Sex: Female, Male
Male
2 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
3 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
3 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=5 Participants
Race (NIH/OMB)
White
2 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
4 Participants
n=5 Participants
Region of Enrollment
United States
6 participants
n=5 Participants

PRIMARY outcome

Timeframe: Surgery through discharge (approximately 5 days)

All adverse events will be collected and relatedness to study intervention will be determined.

Outcome measures

Outcome measures
Measure
Imaging Arm
n=6 Participants
Up to 5mL of 1:1000 dilute FLUORESCITE will be applied to cardiac tissue prior to imaging with Cellvizio 100 Series System with Confocal Miniprobes Fluorescite: Dilute fluorescite will be applied to cardiac tissue prior to imaging Cellvizio 100 Series System with Confocal Miniprobes: Microscopy system will image cardiac tissue.
Number of Participants Who Experienced Adverse Events Possibly Related to Study Intervention
Experienced AE related to study intervention
0 Participants
Number of Participants Who Experienced Adverse Events Possibly Related to Study Intervention
Experienced AE unrelated to study intervention
6 Participants

SECONDARY outcome

Timeframe: Surgery through discharge (approximately 5 days)

Evaluated by measuring increased time on bypass, rate of enrollment, and the ability to incorporate this imaging modality into standard OR procedures. The additional time on bypass and ability to incorporate the imaging into standard OR procedures was assessed for each subject. 3 additional minutes on bypass was determined as reasonable per the protocol. The ability to incorporate the imaging was considered successful when it did not interfere with the planned clinical procedure. The rate of enrollment was evaluated for the study as a whole.

Outcome measures

Outcome measures
Measure
Imaging Arm
n=6 Participants
Up to 5mL of 1:1000 dilute FLUORESCITE will be applied to cardiac tissue prior to imaging with Cellvizio 100 Series System with Confocal Miniprobes Fluorescite: Dilute fluorescite will be applied to cardiac tissue prior to imaging Cellvizio 100 Series System with Confocal Miniprobes: Microscopy system will image cardiac tissue.
Number of Participants For Whom FCM Imaging During Cardiac Surgery Was Feasible
6 Participants

SECONDARY outcome

Timeframe: After all participants completed the study (range 2 months to 1 year post surgery)

A first reviewer selected 60 FCM images and classified them as reticulated, striated, or of poor quality (indistinguishable microstructure) with 20 images in each group. Quality of the files is measured by the ability of 8 blinded reviewers to classify the images accurately.

Outcome measures

Outcome measures
Measure
Imaging Arm
n=60 Images
Up to 5mL of 1:1000 dilute FLUORESCITE will be applied to cardiac tissue prior to imaging with Cellvizio 100 Series System with Confocal Miniprobes Fluorescite: Dilute fluorescite will be applied to cardiac tissue prior to imaging Cellvizio 100 Series System with Confocal Miniprobes: Microscopy system will image cardiac tissue.
Percentage of Agreement in Classification of FCM Images
90.4 % of agreement with unblinded reviewer
Interval 81.7 to 96.7

Adverse Events

Imaging Arm

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

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Imaging Arm
n=6 participants at risk
Up to 5mL of 1:1000 dilute FLUORESCITE will be applied to cardiac tissue prior to imaging with Cellvizio 100 Series System with Confocal Miniprobes Fluorescite: Dilute fluorescite will be applied to cardiac tissue prior to imaging Cellvizio 100 Series System with Confocal Miniprobes: Microscopy system will image cardiac tissue.
Blood and lymphatic system disorders
Anemia
50.0%
3/6 • Number of events 5 • From surgery until hospital discharge, up to 9 days.
Vascular disorders
Hypertension
16.7%
1/6 • Number of events 1 • From surgery until hospital discharge, up to 9 days.
General disorders
Edema
33.3%
2/6 • Number of events 2 • From surgery until hospital discharge, up to 9 days.
Gastrointestinal disorders
Nausea
33.3%
2/6 • Number of events 3 • From surgery until hospital discharge, up to 9 days.
Gastrointestinal disorders
Constipation
100.0%
6/6 • Number of events 6 • From surgery until hospital discharge, up to 9 days.
Gastrointestinal disorders
Vomiting
33.3%
2/6 • Number of events 2 • From surgery until hospital discharge, up to 9 days.
General disorders
Pain
100.0%
6/6 • Number of events 6 • From surgery until hospital discharge, up to 9 days.
Psychiatric disorders
Insomnia
16.7%
1/6 • Number of events 1 • From surgery until hospital discharge, up to 9 days.
Psychiatric disorders
Agitation
16.7%
1/6 • Number of events 1 • From surgery until hospital discharge, up to 9 days.
Respiratory, thoracic and mediastinal disorders
Pneumothorax
33.3%
2/6 • Number of events 3 • From surgery until hospital discharge, up to 9 days.
Respiratory, thoracic and mediastinal disorders
Pleural effusion
33.3%
2/6 • Number of events 2 • From surgery until hospital discharge, up to 9 days.
Respiratory, thoracic and mediastinal disorders
Atelectasis
66.7%
4/6 • Number of events 4 • From surgery until hospital discharge, up to 9 days.

Additional Information

Aditya K. Kaza, MD

Boston Children's Hospital

Phone: 617-355-7932

Results disclosure agreements

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