Trial Outcomes & Findings for Programmed Environmental Illumination (PEI) of Hospital Rooms to Prevent/Reduce Cancer-Related Fatigue (NCT NCT03198754)

NCT ID: NCT03198754

Last Updated: 2020-08-11

Results Overview

The FACIT-Fatigue scale is a13 item scale, full scale 0-52, with higher score indicating better functioning or less fatigue.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

73 participants

Primary outcome timeframe

Baseline, Day 2, 7, 14, 28 and 90

Results posted on

2020-08-11

Participant Flow

89 consented, but 16 not enrolled

Participant milestones

Participant milestones
Measure
Circadian Active Bright White Light (BWL)
PEI Experimental Light: Ambient Light Fixture delivery of circadian active bright white light (BWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Circadian Inactive Dim White Light (DWL)
Comparison Light: Ambient Light Fixture delivery of circadian inactive dim white light (DWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Overall Study
STARTED
38
35
Overall Study
COMPLETED
27
27
Overall Study
NOT COMPLETED
11
8

Reasons for withdrawal

Reasons for withdrawal
Measure
Circadian Active Bright White Light (BWL)
PEI Experimental Light: Ambient Light Fixture delivery of circadian active bright white light (BWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Circadian Inactive Dim White Light (DWL)
Comparison Light: Ambient Light Fixture delivery of circadian inactive dim white light (DWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Overall Study
Withdrawal by Subject
5
4
Overall Study
Lost to Follow-up
4
3
Overall Study
Ineligible
2
1

Baseline Characteristics

Programmed Environmental Illumination (PEI) of Hospital Rooms to Prevent/Reduce Cancer-Related Fatigue

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Circadian Active Bright White Light (BWL)
n=38 Participants
PEI Experimental Light: Ambient Light Fixture delivery of circadian active bright white light (BWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Circadian Inactive Dim White Light (DWL)
n=35 Participants
Comparison Light: Ambient Light Fixture delivery of circadian inactive dim white light (DWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Total
n=73 Participants
Total of all reporting groups
Age, Continuous
61.18 years
STANDARD_DEVIATION 8.507 • n=39 Participants
58.58 years
STANDARD_DEVIATION 7.521 • n=41 Participants
60.04 years
STANDARD_DEVIATION 8.083 • n=35 Participants
Sex: Female, Male
Female
14 Participants
n=39 Participants
13 Participants
n=41 Participants
27 Participants
n=35 Participants
Sex: Female, Male
Male
24 Participants
n=39 Participants
22 Participants
n=41 Participants
46 Participants
n=35 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=39 Participants
0 Participants
n=41 Participants
0 Participants
n=35 Participants
Race (NIH/OMB)
Asian
0 Participants
n=39 Participants
4 Participants
n=41 Participants
4 Participants
n=35 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=39 Participants
0 Participants
n=41 Participants
0 Participants
n=35 Participants
Race (NIH/OMB)
Black or African American
14 Participants
n=39 Participants
8 Participants
n=41 Participants
22 Participants
n=35 Participants
Race (NIH/OMB)
White
24 Participants
n=39 Participants
21 Participants
n=41 Participants
45 Participants
n=35 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=39 Participants
2 Participants
n=41 Participants
2 Participants
n=35 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=39 Participants
0 Participants
n=41 Participants
0 Participants
n=35 Participants

PRIMARY outcome

Timeframe: Baseline, Day 2, 7, 14, 28 and 90

Population: Data available only for participants who completed instrument for respective study visits.

The FACIT-Fatigue scale is a13 item scale, full scale 0-52, with higher score indicating better functioning or less fatigue.

Outcome measures

Outcome measures
Measure
Circadian Active Bright White Light (BWL)
n=38 Participants
PEI Experimental Light: Ambient Light Fixture delivery of circadian active bright white light (BWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Circadian Inactive Dim White Light (DWL)
n=35 Participants
Comparison Light: Ambient Light Fixture delivery of circadian inactive dim white light (DWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
FACIT-Fatigue Scale
Baseline
37.00 score on a scale
Standard Deviation 9.80
35.06 score on a scale
Standard Deviation 10.51
FACIT-Fatigue Scale
Day 2
38.71 score on a scale
Standard Deviation 7.62
35.00 score on a scale
Standard Deviation 11.32
FACIT-Fatigue Scale
Day 7
29.16 score on a scale
Standard Deviation 11.32
26.37 score on a scale
Standard Deviation 13.49
FACIT-Fatigue Scale
Day 14
35.97 score on a scale
Standard Deviation 8.41
29.94 score on a scale
Standard Deviation 13.59
FACIT-Fatigue Scale
Day 28
38.17 score on a scale
Standard Deviation 11.26
35.46 score on a scale
Standard Deviation 10.07
FACIT-Fatigue Scale
Day 90
42.30 score on a scale
Standard Deviation 8.24
38.86 score on a scale
Standard Deviation 9.49

SECONDARY outcome

Timeframe: up to 3 months

Population: Instrument not used and data not collected.

The Multidimensional Fatigue Inventory (MFI) is a 20-item self-report instrument designed to measure fatigue. It covers the following dimensions: General Fatigue, Physical Fatigue, Mental Fatigue, Reduced Motivation and Reduced Activity. Tested for its psychometric properties in cancer patients receiving radiotherapy, patients with the chronic fatigue syndrome, psychology students, medical students, army recruits and junior physicians, it was found to have good Test-retest Reliability (r=0.80) and great Internal Consistency (Cronbach's alpha = 0.92).

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Baseline, Day 30 and Day 90

Population: Data available only for participants who completed instrument for respective study visits.

The Pittsburgh Sleep Quality Index consists of 19 self-rated instrument full scale from 0-21, with higher score indicating poorer sleep quality.

Outcome measures

Outcome measures
Measure
Circadian Active Bright White Light (BWL)
n=38 Participants
PEI Experimental Light: Ambient Light Fixture delivery of circadian active bright white light (BWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Circadian Inactive Dim White Light (DWL)
n=35 Participants
Comparison Light: Ambient Light Fixture delivery of circadian inactive dim white light (DWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
The Pittsburgh Sleep Quality Index
Day 90 after discharge
4.80 score on a scale
Standard Deviation 3.41
6.30 score on a scale
Standard Deviation 3.74
The Pittsburgh Sleep Quality Index
Baseline
6.03 score on a scale
Standard Deviation 3.11
7.59 score on a scale
Standard Deviation 4.58
The Pittsburgh Sleep Quality Index
Day 30 after discharge
5.79 score on a scale
Standard Deviation 3.60
6.13 score on a scale
Standard Deviation 2.82

SECONDARY outcome

Timeframe: Baseline and 30 days post hospital discharge

Population: Data available only for participants who completed instrument for respective study visits.

Quality of life assessed using the SF-36 scale. The SF-36 is a multi-purpose, short form health survey consisting of 36 questions. The SF-36 consists of eight scaled scores, which are the weighted sums of the questions in their section. Each scale is directly transformed into a 0-100 scale on the assumption that each question carries equal weight. The lower the score the more disability. The higher the score the less disability

Outcome measures

Outcome measures
Measure
Circadian Active Bright White Light (BWL)
n=15 Participants
PEI Experimental Light: Ambient Light Fixture delivery of circadian active bright white light (BWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Circadian Inactive Dim White Light (DWL)
n=13 Participants
Comparison Light: Ambient Light Fixture delivery of circadian inactive dim white light (DWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
SF-36 Scale
Physicial Limitations Scale Day30 after discharge
77.0833 score on a scale
Standard Deviation 25.20747
77.5000 score on a scale
Standard Deviation 25.61738
SF-36 Scale
Energy Fatigue Scale Baseline
63.3333 score on a scale
Standard Deviation 11.77985
62.5000 score on a scale
Standard Deviation 15.72882
SF-36 Scale
Pain Scale Day 30 after discharge
79.1667 score on a scale
Standard Deviation 20.41241
72.5000 score on a scale
Standard Deviation 28.50439
SF-36 Scale
Emotional Well Being Scale Baseline
76.000 score on a scale
Standard Deviation 17.13393
75.3846 score on a scale
Standard Deviation 19.83910
SF-36 Scale
Emotional Well Being Scale Day 30 after discharge
89.1667 score on a scale
Standard Deviation 8.61201
76.0000 score on a scale
Standard Deviation 16.35543
SF-36 Scale
General Health Scale Baseline
65.2778 score on a scale
Standard Deviation 22.58508
52.8846 score on a scale
Standard Deviation 17.95253
SF-36 Scale
General Health Scale Day 30 after discharge
63.8889 score on a scale
Standard Deviation 22.77100
58.3333 score on a scale
Standard Deviation 27.63854
SF-36 Scale
Physical Functioning Scale Baseline
66.3333 score on a scale
Standard Deviation 29.48769
64.4872 score on a scale
Standard Deviation 30.49275
SF-36 Scale
Physical Functioning Scale Day 30 after discharge
78.3333 score on a scale
Standard Deviation 16.32993
75.0000 score on a scale
Standard Deviation 23.97916
SF-36 Scale
Limitations due to Physical Health Scale Baseline
64.1667 score on a scale
Standard Deviation 38.19787
55.6923 score on a scale
Standard Deviation 30.74105
SF-36 Scale
Energy Fatigue Scale Day 30 after discharge
69.7917 score on a scale
Standard Deviation 15.52048
61.2500 score on a scale
Standard Deviation 21.378
SF-36 Scale
Pain Scale Baseline
75.0000 score on a scale
Standard Deviation 24.54951
59.6154 score on a scale
Standard Deviation 29.82320
SF-36 Scale
Limitations due to Emotional Problems Baseline
86.1111 score on a scale
Standard Deviation 29.49083
75.0000 score on a scale
Standard Deviation 30.61862
SF-36 Scale
Emotional Limitations Scale Day 30 after discharge
83.3333 score on a scale
Standard Deviation 30.27650
78.3333 score on a scale
Standard Deviation 26.08746
SF-36 Scale
Social Functioning Scale Baseline
82.50000 score on a scale
Standard Deviation 22.05917
75.9615 score on a scale
Standard Deviation 19.40625
SF-36 Scale
Social Functioning Scale Day 30 after discharge
93.75000 score on a scale
Standard Deviation 15.30931
85.0000 score on a scale
Standard Deviation 16.29801

SECONDARY outcome

Timeframe: Baseline, Day 2, Day 7, and Day 14 post transplant

Population: Data available only for participants who completed instrument for respective study visits.

Number of participants with score 16 or greater on CES-D, 20 item questionnaire that reflects major dimensions of depression: depressed mood; feelings of guilt and worthlessness; feelings of helplessness and hopelessness; psychomotor retardation; loss of appetite; and sleep disturbance. Full score from 0- 20, with higher score indicating more symptomology.

Outcome measures

Outcome measures
Measure
Circadian Active Bright White Light (BWL)
n=38 Participants
PEI Experimental Light: Ambient Light Fixture delivery of circadian active bright white light (BWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Circadian Inactive Dim White Light (DWL)
n=35 Participants
Comparison Light: Ambient Light Fixture delivery of circadian inactive dim white light (DWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Number of Participants With Score 16 or Greater on CES-D (Center for Epidemiologic Studies Depression Scale)
Day 14, post transplant
12 Participants
17 Participants
Number of Participants With Score 16 or Greater on CES-D (Center for Epidemiologic Studies Depression Scale)
baseline, prior to hospitalization
10 Participants
11 Participants
Number of Participants With Score 16 or Greater on CES-D (Center for Epidemiologic Studies Depression Scale)
Day 2 post- transplant
9 Participants
8 Participants
Number of Participants With Score 16 or Greater on CES-D (Center for Epidemiologic Studies Depression Scale)
Day 7, post-transplant
13 Participants
15 Participants

SECONDARY outcome

Timeframe: Baseline, Day 2, 7, 14, 28, and 90

Population: Data available only for participants who completed instrument for respective study visits.

CES-D, 20 item questionnaire that reflects major dimensions of depression: depressed mood; feelings of guilt and worthlessness; feelings of helplessness and hopelessness; psychomotor retardation; loss of appetite; and sleep disturbance. Full score from 0- 20, with higher score indicating more symptomology.

Outcome measures

Outcome measures
Measure
Circadian Active Bright White Light (BWL)
n=38 Participants
PEI Experimental Light: Ambient Light Fixture delivery of circadian active bright white light (BWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Circadian Inactive Dim White Light (DWL)
n=35 Participants
Comparison Light: Ambient Light Fixture delivery of circadian inactive dim white light (DWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
CES-D (Center for Epidemiologic Studies Depression Scale)
Day 7
15.13 score on a scale
Standard Deviation 9.01
17.93 score on a scale
Standard Deviation 11.16
CES-D (Center for Epidemiologic Studies Depression Scale)
baseline, prior to hospitalization
11.00 score on a scale
Standard Deviation 8.47
10.94 score on a scale
Standard Deviation 8.12
CES-D (Center for Epidemiologic Studies Depression Scale)
Day 2
12.48 score on a scale
Standard Deviation 9.64
12.48 score on a scale
Standard Deviation 9.26
CES-D (Center for Epidemiologic Studies Depression Scale)
Day 14
14.43 score on a scale
Standard Deviation 8.78
18.58 score on a scale
Standard Deviation 10.71
CES-D (Center for Epidemiologic Studies Depression Scale)
Day 28
9.75 score on a scale
Standard Deviation 9.03
10.27 score on a scale
Standard Deviation 7.94
CES-D (Center for Epidemiologic Studies Depression Scale)
Day 90
8.13 score on a scale
Standard Deviation 7.41
6.95 score on a scale
Standard Deviation 7.17

SECONDARY outcome

Timeframe: Baseline, Day 30, Day 90

Population: Data available only for participants who completed instrument for respective study visits.

PANAS is a 20-item self-report measure of positive and negative affect. Each item rated on a 5-point scale of 1 (not at all) to 5 (extremely), each subscale from 1-5, full score from 1-5, with higher score indicating more symptoms. Change in PANAS at Day 30 and Day 90 as compared to baseline.

Outcome measures

Outcome measures
Measure
Circadian Active Bright White Light (BWL)
n=38 Participants
PEI Experimental Light: Ambient Light Fixture delivery of circadian active bright white light (BWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Circadian Inactive Dim White Light (DWL)
n=35 Participants
Comparison Light: Ambient Light Fixture delivery of circadian inactive dim white light (DWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
The Positive and Negative Affect Schedule (PANAS)
PANAS Negative Baseline
1.6455 score on a scale
Standard Deviation .65154
1.9316 score on a scale
Standard Deviation .82060
The Positive and Negative Affect Schedule (PANAS)
PANAS Negative Day 30 after discharge
1.6524 score on a scale
Standard Deviation .90312
.93667 score on a scale
Standard Deviation 1.5950
The Positive and Negative Affect Schedule (PANAS)
PANAS Negative Day 90 after discharge
1.4333 score on a scale
Standard Deviation .70875
1.5417 score on a scale
Standard Deviation .90068
The Positive and Negative Affect Schedule (PANAS)
PANAS Positive Baseline
3.2475 score on a scale
Standard Deviation .98800
3.1351 score on a scale
Standard Deviation .92138
The Positive and Negative Affect Schedule (PANAS)
PANAS Positive Day 30 after discharge
3.3238 score on a scale
Standard Deviation .99242
2.6850 score on a scale
Standard Deviation .96588
The Positive and Negative Affect Schedule (PANAS)
PANAS Positive Day 90 after discharge
3.4778 score on a scale
Standard Deviation .94465
3.0208 score on a scale
Standard Deviation .89003

SECONDARY outcome

Timeframe: Baseline and Day 90

Population: Thirty-eight participants were randomized to the bright white light condition (BWL) and 35 were randomized to the dim white light condition (DWL). Not all participants completed each measure at all time-points. For intent to treat analyses all participants need to be accounted for.

Brief Symptom Inventory-18 (BSI-18) - self-report 18-item instrument. Raw scores on the BSI-18 are converted to t-scores based on gender-specific normative data from non-patient community dwelling U.S. adults. A T-score = 50 indicating average function compared to the reference population and a standard deviation of 10, with a higher score indicating more symptom.

Outcome measures

Outcome measures
Measure
Circadian Active Bright White Light (BWL)
n=38 Participants
PEI Experimental Light: Ambient Light Fixture delivery of circadian active bright white light (BWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Circadian Inactive Dim White Light (DWL)
n=35 Participants
Comparison Light: Ambient Light Fixture delivery of circadian inactive dim white light (DWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Change in Brief Symptoms Inventory-18 (BSI-18)
Baseline
.6560 T-score
Standard Deviation .49498
.4714 T-score
Standard Deviation .61354
Change in Brief Symptoms Inventory-18 (BSI-18)
Day 90
.3280 T-score
Standard Deviation .48206
.3763 T-score
Standard Deviation .67975

SECONDARY outcome

Timeframe: baseline, day 2, 7, and 14

Population: Data available only for participants who completed instrument for respective study visits.

Simple numeric graphic rating scale, marked on a line numbering 0-100, with higher score indicating more fatigue. Replaces the FACIT fatigue scale for daily fatigue assessment during inpatient procedures.

Outcome measures

Outcome measures
Measure
Circadian Active Bright White Light (BWL)
n=38 Participants
PEI Experimental Light: Ambient Light Fixture delivery of circadian active bright white light (BWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Circadian Inactive Dim White Light (DWL)
n=35 Participants
Comparison Light: Ambient Light Fixture delivery of circadian inactive dim white light (DWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Fatigue Line Scale
Day 14
47.65 score on a scale
Standard Deviation 21.59
44.23 score on a scale
Standard Deviation 33.22
Fatigue Line Scale
Baseline
34.62 score on a scale
Standard Deviation 26.41
33.04 score on a scale
Standard Deviation 23.35
Fatigue Line Scale
Day 2
40.21 score on a scale
Standard Deviation 24.19
33.21 score on a scale
Standard Deviation 21.14
Fatigue Line Scale
Day 7
55.55 score on a scale
Standard Deviation 28.45
52.86 score on a scale
Standard Deviation 27.16

SECONDARY outcome

Timeframe: Baseline, Day 30 after Discharge, Day 90 after Discharge

Population: Thirty-eight participants were randomized to the bright white light condition (BWL) and 35 were randomized to the dim white light condition (DWL). Not all participants completed each measure at all time-points. For intent to treat analyses all participants need to be accounted for.

Multidimensional Fatigue Symptom Inventory- Short Form (MFSI-SF) is a 30-item short form of the MFSI that measures five dimensions: general, physical, emotional, mental fatigue, and vigor. Each item is rated on a five-point Likert scale from 0 (not at all) to 4 (extremely). The total MFSI-SF score ranges from 0-4, with a higher score indicating a higher fatigue level.

Outcome measures

Outcome measures
Measure
Circadian Active Bright White Light (BWL)
n=38 Participants
PEI Experimental Light: Ambient Light Fixture delivery of circadian active bright white light (BWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Circadian Inactive Dim White Light (DWL)
n=35 Participants
Comparison Light: Ambient Light Fixture delivery of circadian inactive dim white light (DWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Multidimensional Fatigue Symptom Inventory- Short Form (MFSI-SF)
Baseline
3.1689 score on a scale
Standard Deviation 2.77373
3.0368 score on a scale
Standard Deviation 2.18310
Multidimensional Fatigue Symptom Inventory- Short Form (MFSI-SF)
Day 30 after Discharge
2.2365 score on a scale
Standard Deviation 2.02204
2.8088 score on a scale
Standard Deviation 2.30284
Multidimensional Fatigue Symptom Inventory- Short Form (MFSI-SF)
Day 90 after Discharge
2.2093 score on a scale
Standard Deviation 1.75925
2.2371 score on a scale
Standard Deviation 2.65162

SECONDARY outcome

Timeframe: Baseline, Day 2, Day 7, 3rd day post Engraftment, Discharge

Population: Data available only for participants who completed instrument for respective study visits.

Sleep latency measured by actigraph - Sleep latency is the average period of time between bed time and sleep start time

Outcome measures

Outcome measures
Measure
Circadian Active Bright White Light (BWL)
n=27 Participants
PEI Experimental Light: Ambient Light Fixture delivery of circadian active bright white light (BWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Circadian Inactive Dim White Light (DWL)
n=27 Participants
Comparison Light: Ambient Light Fixture delivery of circadian inactive dim white light (DWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Sleep Latency
3rd day post Engraftment
7.1875 minutes
Standard Deviation 10.88252
4.0909 minutes
Standard Deviation 4.92718
Sleep Latency
Discharge, average 14 days
3.1250 minutes
Standard Deviation 5.40216
6.1579 minutes
Standard Deviation 7.55912
Sleep Latency
Baseline
6.1739 minutes
Standard Deviation 7.61370
12.1481 minutes
Standard Deviation 23.62154
Sleep Latency
Day 2
4.3000 minutes
Standard Deviation 8.90949
9.1538 minutes
Standard Deviation 14.94173
Sleep Latency
Day 7
6.8500 minutes
Standard Deviation 6.25153
4.7778 minutes
Standard Deviation 6.81251

SECONDARY outcome

Timeframe: Baseline, Day 2, Day 7, 3rd day post Engraftment, Discharge

Population: Data available only for participants who completed instrument for respective study visits.

Sleep efficiency measured by actigraph - Sleep efficiency is defined as the average percentage of time in bed actually spent sleeping

Outcome measures

Outcome measures
Measure
Circadian Active Bright White Light (BWL)
n=27 Participants
PEI Experimental Light: Ambient Light Fixture delivery of circadian active bright white light (BWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Circadian Inactive Dim White Light (DWL)
n=27 Participants
Comparison Light: Ambient Light Fixture delivery of circadian inactive dim white light (DWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Sleep Efficiency
Day 7
86.2340 percentage of time
Standard Deviation 7.27702
86.3233 percentage of time
Standard Deviation 9.42600
Sleep Efficiency
Baseline
88.1517 percentage of time
Standard Deviation 12.11416
89.3481 percentage of time
Standard Deviation 6.34251
Sleep Efficiency
Day 2
87.3555 percentage of time
Standard Deviation 8.01844
86.4504 percentage of time
Standard Deviation 10.24487
Sleep Efficiency
3rd day post Engraftment
84.5994 percentage of time
Standard Deviation 7.92472
83.0605 percentage of time
Standard Deviation 13.49365
Sleep Efficiency
Discharge, average 14 days
85.1650 percentage of time
Standard Deviation 7.88246
84.5600 percentage of time
Standard Deviation 12.06957

SECONDARY outcome

Timeframe: Baseline, Day 2, Day 7, 3rd day post Engraftment, Discharge

Population: Data available only for participants who completed instrument for respective study visits.

Wake time measured by actigraph. Wake time is the average number of minutes the participant spent awake each night during the 5 day period. Baseline assessments were taken before transplant and day 2 is two days after transplant which is at least one week after the baseline.

Outcome measures

Outcome measures
Measure
Circadian Active Bright White Light (BWL)
n=27 Participants
PEI Experimental Light: Ambient Light Fixture delivery of circadian active bright white light (BWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Circadian Inactive Dim White Light (DWL)
n=27 Participants
Comparison Light: Ambient Light Fixture delivery of circadian inactive dim white light (DWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Wake Time
Baseline
41.7391 minutes
Standard Deviation 50.64602
40.5556 minutes
Standard Deviation 37.40561
Wake Time
Day 2
56.1000 minutes
Standard Deviation 40.07743
57.2308 minutes
Standard Deviation 44.75382
Wake Time
Day 7
57.6000 minutes
Standard Deviation 42.40209
69.0370 minutes
Standard Deviation 57.24675
Wake Time
3rd day post Engraftment
68.1250 minutes
Standard Deviation 35.86805
84.6364 minutes
Standard Deviation 88.30981
Wake Time
Discharge, average 14 days
62.6875 minutes
Standard Deviation 33.40802
63.3158 minutes
Standard Deviation 57.05363

SECONDARY outcome

Timeframe: Baseline, Day 2, Day 7, 3rd day post Engraftment, Discharge

Population: Data available only for participants who completed instrument for respective study visits.

Wake percent measured by actigraph - Wake percent is the average percent of each night spent awake

Outcome measures

Outcome measures
Measure
Circadian Active Bright White Light (BWL)
n=27 Participants
PEI Experimental Light: Ambient Light Fixture delivery of circadian active bright white light (BWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Circadian Inactive Dim White Light (DWL)
n=27 Participants
Comparison Light: Ambient Light Fixture delivery of circadian inactive dim white light (DWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Wake Percent
Discharge, average 14 days
12.6494 percentage of time
Standard Deviation 6.22923
13.0326 percentage of time
Standard Deviation 9.44681
Wake Percent
Baseline
9.4665 percentage of time
Standard Deviation 11.90539
7.9574 percentage of time
Standard Deviation 6.25857
Wake Percent
Day 2
11.5900 percentage of time
Standard Deviation 7.51981
11.0746 percentage of time
Standard Deviation 7.82651
Wake Percent
Day 7
11.9765 percentage of time
Standard Deviation 7.21864
12.3589 percentage of time
Standard Deviation 9.11993
Wake Percent
3rd day post Engraftment
13.1819 percentage of time
Standard Deviation 6.67063
15.7973 percentage of time
Standard Deviation 13.55268

SECONDARY outcome

Timeframe: Baseline, Day 2, Day 7, 3rd day post Engraftment, Discharge

Population: Data available only for participants who completed instrument for respective study visits.

Sleep time measured by actigraph. Sleep time - average number of minutes the participant was asleep each night during the 5 day period. Baseline assessments were taken before transplant and day 2 is two days after transplant which is at least one week after the baseline.

Outcome measures

Outcome measures
Measure
Circadian Active Bright White Light (BWL)
n=27 Participants
PEI Experimental Light: Ambient Light Fixture delivery of circadian active bright white light (BWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Circadian Inactive Dim White Light (DWL)
n=27 Participants
Comparison Light: Ambient Light Fixture delivery of circadian inactive dim white light (DWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Sleep Time
Baseline
396.0000 minutes
Standard Deviation 106.94731
444.2407 minutes
Standard Deviation 120.45869
Sleep Time
Day 2
423.3500 minutes
Standard Deviation 102.93753
458.3077 minutes
Standard Deviation 122.00419
Sleep Time
Day 7
422.9500 minutes
Standard Deviation 124.38246
469.0370 minutes
Standard Deviation 103.74839
Sleep Time
3rd day post Engraftment
445.0000 minutes
Standard Deviation 114.98870
412.9545 minutes
Standard Deviation 103.99472
Sleep Time
Discharge, average 14 days
442.7500 minutes
Standard Deviation 139.03261
429.0526 minutes
Standard Deviation 142.22223

SECONDARY outcome

Timeframe: Baseline, Day 2, Day 7, 3rd day post Engraftment, Discharge

Population: Data available only for participants who completed instrument for respective study visits.

Sleep percent measured by actigraph. Sleep percent is the percent of time spent in bed that the participant is asleep.

Outcome measures

Outcome measures
Measure
Circadian Active Bright White Light (BWL)
n=27 Participants
PEI Experimental Light: Ambient Light Fixture delivery of circadian active bright white light (BWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Circadian Inactive Dim White Light (DWL)
n=27 Participants
Comparison Light: Ambient Light Fixture delivery of circadian inactive dim white light (DWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Sleep Percent
Baseline
90.5335 percentage of time
Standard Deviation 11.90539
92.0426 percentage of time
Standard Deviation 6.25857
Sleep Percent
Day 2
88.4100 percentage of time
Standard Deviation 7.51981
88.9254 percentage of time
Standard Deviation 7.82651
Sleep Percent
Day 7
88.0265 percentage of time
Standard Deviation 7.21864
87.6411 percentage of time
Standard Deviation 9.11993
Sleep Percent
3rd day post Engraftment
86.8181 percentage of time
Standard Deviation 6.67063
84.2027 percentage of time
Standard Deviation 13.55268
Sleep Percent
Discharge, average 14 days
87.3506 percentage of time
Standard Deviation 6.22923
86.9674 percentage of time
Standard Deviation 9.44681

SECONDARY outcome

Timeframe: Baseline and Discharge

Melatonin level

Outcome measures

Outcome measures
Measure
Circadian Active Bright White Light (BWL)
n=27 Participants
PEI Experimental Light: Ambient Light Fixture delivery of circadian active bright white light (BWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Circadian Inactive Dim White Light (DWL)
n=27 Participants
Comparison Light: Ambient Light Fixture delivery of circadian inactive dim white light (DWL) installed in the patient's hospital room will turn on automatically and illuminate the hospital room from 7 to 10 AM each morning.
Melatonin
Baseline
21.5116 ng/ml
Standard Deviation 20.83586
41.2025 ng/ml
Standard Deviation 64.54599
Melatonin
Discharge, average 14 days
31.6728 ng/ml
Standard Deviation 45.04760
19.0317 ng/ml
Standard Deviation 23.11714

Adverse Events

Circadian Active Bright White Light (BWL)

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

Circadian Inactive Dim White Light (DWL)

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

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Heiðdís B. Valdimarsdottir

Icahn School of Medicine at Mount Sinai

Phone: (212) 659-5678

Results disclosure agreements

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