Trial Outcomes & Findings for The RESTING Insomnia Study: Randomized Controlled Study on Effectiveness of Stepped-Care Sleep Therapy (NCT NCT03532282)

NCT ID: NCT03532282

Last Updated: 2024-12-19

Results Overview

The average number of minimal effective doses of prescription sleep medications taken; A greater number means that the person was taking number of minimal effective doses of prescription sleep medications, with a value of 0 meaning that the person is not taking any prescription sleep medication.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

388 participants

Primary outcome timeframe

at baseline and at months 2, 4, 6, 9, & 12

Results posted on

2024-12-19

Participant Flow

388 participants signed consent. 254 were eligible and 245 were randomized to a study arm

Participant milestones

Participant milestones
Measure
ONLINE ONLY (ONLN)
Online cognitive behavioral therapy for insomnia
STEPPED CARE (STEP)
Cognitive behavioral therapy for insomnia online or therapist-led or sequentially both
Overall Study
STARTED
121
124
Overall Study
Triaged Checklist YES
69
68
Overall Study
COMPLETED
102
108
Overall Study
NOT COMPLETED
19
16

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

The RESTING Insomnia Study: Randomized Controlled Study on Effectiveness of Stepped-Care Sleep Therapy

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
ONLN
n=121 Participants
Online cognitive behavioral therapy for insomnia
STEP
n=124 Participants
Cognitive behavioral therapy for insomnia online or therapist-led or sequentially both
Total
n=245 Participants
Total of all reporting groups
Age, Continuous
64.0 years
STANDARD_DEVIATION 7.90 • n=99 Participants
62.2 years
STANDARD_DEVIATION 8.31 • n=107 Participants
63.1 years
STANDARD_DEVIATION 8.15 • n=206 Participants
Sex: Female, Male
Female
92 Participants
n=99 Participants
90 Participants
n=107 Participants
182 Participants
n=206 Participants
Sex: Female, Male
Male
29 Participants
n=99 Participants
34 Participants
n=107 Participants
63 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
7 Participants
n=99 Participants
12 Participants
n=107 Participants
19 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
108 Participants
n=99 Participants
110 Participants
n=107 Participants
218 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
6 Participants
n=99 Participants
2 Participants
n=107 Participants
8 Participants
n=206 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=99 Participants
1 Participants
n=107 Participants
1 Participants
n=206 Participants
Race (NIH/OMB)
Asian
21 Participants
n=99 Participants
22 Participants
n=107 Participants
43 Participants
n=206 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
1 Participants
n=107 Participants
1 Participants
n=206 Participants
Race (NIH/OMB)
Black or African American
2 Participants
n=99 Participants
2 Participants
n=107 Participants
4 Participants
n=206 Participants
Race (NIH/OMB)
White
88 Participants
n=99 Participants
89 Participants
n=107 Participants
177 Participants
n=206 Participants
Race (NIH/OMB)
More than one race
2 Participants
n=99 Participants
7 Participants
n=107 Participants
9 Participants
n=206 Participants
Race (NIH/OMB)
Unknown or Not Reported
8 Participants
n=99 Participants
2 Participants
n=107 Participants
10 Participants
n=206 Participants
Region of Enrollment
United States
121 Participants
n=99 Participants
124 Participants
n=107 Participants
245 Participants
n=206 Participants
Insomnia Severity Index (ISI)
15.9 Score on a scale
STANDARD_DEVIATION 4.25 • n=99 Participants
15.4 Score on a scale
STANDARD_DEVIATION 4.14 • n=107 Participants
15.6 Score on a scale
STANDARD_DEVIATION 4.19 • n=206 Participants

PRIMARY outcome

Timeframe: at baseline and at months 2, 4, 6, 9, & 12

Population: Intent to treat sample; values for participants with available data at the respective time point

The ISI is an empirically validated 7-item questionnaire, with each item rated on a 0 to 4 scale. The score is the sum of the 7 items. scores range between 0 and 28 (higher score corresponds with greater insomnia severity), with 10 as a cutoff score for identifying individuals in the community who are likely to meet criteria for insomnia disorder and 8 as a cutoff for defining remission.

Outcome measures

Outcome measures
Measure
ONLN
n=121 Participants
Online cognitive behavioral therapy for insomnia
STEP
n=124 Participants
Cognitive behavioral therapy for insomnia online or therapist-led or sequentially both
Insomnia Severity Index (ISI)
Baseline
15.9 score on a scale
Standard Deviation 4.25
15.4 score on a scale
Standard Deviation 4.14
Insomnia Severity Index (ISI)
2-month
12.7 score on a scale
Standard Deviation 5.00
11.6 score on a scale
Standard Deviation 4.75
Insomnia Severity Index (ISI)
4-month
11.6 score on a scale
Standard Deviation 4.98
10.0 score on a scale
Standard Deviation 4.75
Insomnia Severity Index (ISI)
6-month
11.3 score on a scale
Standard Deviation 4.93
9.45 score on a scale
Standard Deviation 4.71
Insomnia Severity Index (ISI)
9-month
10.8 score on a scale
Standard Deviation 4.76
9.12 score on a scale
Standard Deviation 4.94
Insomnia Severity Index (ISI)
12-month
10.8 score on a scale
Standard Deviation 5.16
8.23 score on a scale
Standard Deviation 4.99

PRIMARY outcome

Timeframe: at baseline and at months 2, 4, 6, 9, & 12

Population: Intent to treat sample; values for participants with available data at the respective time point

The average number of minimal effective doses of prescription sleep medications taken; A greater number means that the person was taking number of minimal effective doses of prescription sleep medications, with a value of 0 meaning that the person is not taking any prescription sleep medication.

Outcome measures

Outcome measures
Measure
ONLN
n=121 Participants
Online cognitive behavioral therapy for insomnia
STEP
n=124 Participants
Cognitive behavioral therapy for insomnia online or therapist-led or sequentially both
Use of Prescription Sleep Medication
Baseline
0.372 Average number of minimal doses
Standard Deviation 0.756
0.333 Average number of minimal doses
Standard Deviation 0.817
Use of Prescription Sleep Medication
2-month
0.357 Average number of minimal doses
Standard Deviation 0.792
0.271 Average number of minimal doses
Standard Deviation 0.660
Use of Prescription Sleep Medication
4-month
0.340 Average number of minimal doses
Standard Deviation 0.780
0.202 Average number of minimal doses
Standard Deviation 0.842
Use of Prescription Sleep Medication
6-month
0.352 Average number of minimal doses
Standard Deviation 0.752
0.178 Average number of minimal doses
Standard Deviation 0.638
Use of Prescription Sleep Medication
9-month
0.396 Average number of minimal doses
Standard Deviation 0.929
0.130 Average number of minimal doses
Standard Deviation 0.372
Use of Prescription Sleep Medication
12-month
0.375 Average number of minimal doses
Standard Deviation 0.872
0.205 Average number of minimal doses
Standard Deviation 0.874

SECONDARY outcome

Timeframe: at baseline and at months 2, 4, 6, 9, & 12

Population: Intent to treat sample; values for participants with available data at the respective time point

Questionnaire measuring sleep related impairment using T-scores, with a population mean of 50 and a standard deviation of 10. T-scores of 55-60 represent mild impairment; 60-70 represent moderate impairment; 70-80 represent severe impairment.

Outcome measures

Outcome measures
Measure
ONLN
n=121 Participants
Online cognitive behavioral therapy for insomnia
STEP
n=124 Participants
Cognitive behavioral therapy for insomnia online or therapist-led or sequentially both
Patient-Reported Outcomes Measurement Information System (PROMIS) - Sleep Related Impairment Questionnaire
Baseline
56.8 T score
Standard Deviation 7.48
56.8 T score
Standard Deviation 6.66
Patient-Reported Outcomes Measurement Information System (PROMIS) - Sleep Related Impairment Questionnaire
2-month
53.7 T score
Standard Deviation 7.74
53.4 T score
Standard Deviation 8.01
Patient-Reported Outcomes Measurement Information System (PROMIS) - Sleep Related Impairment Questionnaire
4-month
53.1 T score
Standard Deviation 8.25
52.1 T score
Standard Deviation 8.07
Patient-Reported Outcomes Measurement Information System (PROMIS) - Sleep Related Impairment Questionnaire
6-month
53.2 T score
Standard Deviation 7.60
51.0 T score
Standard Deviation 7.00
Patient-Reported Outcomes Measurement Information System (PROMIS) - Sleep Related Impairment Questionnaire
9-month
52.2 T score
Standard Deviation 8.45
50.5 T score
Standard Deviation 8.31
Patient-Reported Outcomes Measurement Information System (PROMIS) - Sleep Related Impairment Questionnaire
12-month
51.0 T score
Standard Deviation 8.17
48.2 T score
Standard Deviation 8.32

SECONDARY outcome

Timeframe: at baseline and at months 2, 4, 6, 9, & 12

Population: Intent to treat sample; values for participants with available data at the respective time point

A validated questionnaire measuring depressive and anxiety symptom severity. The total score ranges between 0 and 12. Scores are rated as normal (0-2), mild (3-5), moderate (6-8), and severe (9-12).

Outcome measures

Outcome measures
Measure
ONLN
n=121 Participants
Online cognitive behavioral therapy for insomnia
STEP
n=124 Participants
Cognitive behavioral therapy for insomnia online or therapist-led or sequentially both
PHQ-4 (The 4 Item Patient Health Questionnaire For Anxiety and Depression)
Baseline
2.21 units on a scale
Standard Deviation 2.28
2.46 units on a scale
Standard Deviation 2.51
PHQ-4 (The 4 Item Patient Health Questionnaire For Anxiety and Depression)
2-month
2.63 units on a scale
Standard Deviation 2.13
2.46 units on a scale
Standard Deviation 2.51
PHQ-4 (The 4 Item Patient Health Questionnaire For Anxiety and Depression)
4-month
2.64 units on a scale
Standard Deviation 2.49
2.59 units on a scale
Standard Deviation 2.77
PHQ-4 (The 4 Item Patient Health Questionnaire For Anxiety and Depression)
6-month
2.51 units on a scale
Standard Deviation 2.15
2.44 units on a scale
Standard Deviation 2.23
PHQ-4 (The 4 Item Patient Health Questionnaire For Anxiety and Depression)
9-month
2.29 units on a scale
Standard Deviation 2.21
2.01 units on a scale
Standard Deviation 1.86
PHQ-4 (The 4 Item Patient Health Questionnaire For Anxiety and Depression)
12-month
2.34 units on a scale
Standard Deviation 2.28
1.92 units on a scale
Standard Deviation 2.12

Adverse Events

ONLN

Serious events: 1 serious events
Other events: 8 other events
Deaths: 1 deaths

STEP

Serious events: 1 serious events
Other events: 9 other events
Deaths: 1 deaths

Serious adverse events

Serious adverse events
Measure
ONLN
n=121 participants at risk
Online cognitive behavioral therapy for insomnia
STEP
n=124 participants at risk
Cognitive behavioral therapy for insomnia online or therapist-led or sequentially both
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Lung cancer
0.00%
0/121 • 1 year
0.81%
1/124 • 1 year
Surgical and medical procedures
Surgical complications
0.83%
1/121 • 1 year
0.00%
0/124 • 1 year

Other adverse events

Other adverse events
Measure
ONLN
n=121 participants at risk
Online cognitive behavioral therapy for insomnia
STEP
n=124 participants at risk
Cognitive behavioral therapy for insomnia online or therapist-led or sequentially both
Psychiatric disorders
Fatigue
2.5%
3/121 • 1 year
6.5%
8/124 • 1 year
Psychiatric disorders
Sleepiness
4.1%
5/121 • 1 year
6.5%
8/124 • 1 year
Psychiatric disorders
Worsening of sleep
2.5%
3/121 • 1 year
1.6%
2/124 • 1 year
Psychiatric disorders
Stress about sleep
0.00%
0/121 • 1 year
0.81%
1/124 • 1 year
Psychiatric disorders
Discomfort due to not enough sl
0.83%
1/121 • 1 year
1.6%
2/124 • 1 year

Additional Information

Rachel Manber, PhD

Stanford University

Phone: (650) 498-9111

Results disclosure agreements

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