Trial Outcomes & Findings for RCT of Brief CBT-I in Primary Care Veterans With Suicidal Thoughts (NCT NCT03603717)

NCT ID: NCT03603717

Last Updated: 2024-06-17

Results Overview

The Insomnia Severity Index (ISI) is a 7-item self-report measure of insomnia symptoms. Each item is rated on a 0-4-point scale with a total score range of 0-28 where higher scores indicate greater severity.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

283 participants

Primary outcome timeframe

Baseline (Week 0) and 6 Month follow-up (Week 30)

Results posted on

2024-06-17

Participant Flow

Participants were recruited by a letter from their primary care physician from three Department of Veterans Affairs Medical Centers and then screened by telephone by study staff between January 2019 and November 2022. The first participant was enrolled on February 8, 2019 and the last participant enrolled in November 2022.

A total of 283 participants were enrolled in the study and completed the baseline assessment. Of these, 83 did not meet eligibility criteria and 6 eligible participants withdrew prior to randomization. As a result, 194 participants were randomized.

Participant milestones

Participant milestones
Measure
CBT-I
Four individual sessions that will last approximately 15-30 minutes each across a 6-week time period, with the option to deliver sessions over the telephone as necessary. Cognitive Behavioral Therapy for Insomnia: The intervention will consist of a standard, structured, multi-component intervention for insomnia that includes sleep education, sleep hygiene, sleep restriction, stimulus control, and cognitive therapy.
Sleep Hygiene
Four individual sessions that will last 15-30 minutes each across a 6-week time period, with the option to deliver sessions over the telephone as necessary. Sleep Hygiene: The intervention will include basic psychoeducation about sleep, discussion of sleep hygiene factors that disrupt and improve sleep, setting sleep hygiene goals, and developing action steps to achieve those goals.
Overall Study
STARTED
98
96
Overall Study
COMPLETED
62
66
Overall Study
NOT COMPLETED
36
30

Reasons for withdrawal

Reasons for withdrawal
Measure
CBT-I
Four individual sessions that will last approximately 15-30 minutes each across a 6-week time period, with the option to deliver sessions over the telephone as necessary. Cognitive Behavioral Therapy for Insomnia: The intervention will consist of a standard, structured, multi-component intervention for insomnia that includes sleep education, sleep hygiene, sleep restriction, stimulus control, and cognitive therapy.
Sleep Hygiene
Four individual sessions that will last 15-30 minutes each across a 6-week time period, with the option to deliver sessions over the telephone as necessary. Sleep Hygiene: The intervention will include basic psychoeducation about sleep, discussion of sleep hygiene factors that disrupt and improve sleep, setting sleep hygiene goals, and developing action steps to achieve those goals.
Overall Study
Lost to Follow-up
20
20
Overall Study
Withdrawal by Subject
16
10

Baseline Characteristics

RCT of Brief CBT-I in Primary Care Veterans With Suicidal Thoughts

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
CBT-I
n=98 Participants
Four individual sessions that will last approximately 15-30 minutes each across a 6-week time period, with the option to deliver sessions over the telephone as necessary. Cognitive Behavioral Therapy for Insomnia: The intervention will consist of a standard, structured, multi-component intervention for insomnia that includes sleep education, sleep hygiene, sleep restriction, stimulus control, and cognitive therapy.
Sleep Hygiene
n=96 Participants
Four individual sessions that will last 15-30 minutes each across a 6-week time period, with the option to deliver sessions over the telephone as necessary. Sleep Hygiene: The intervention will include basic psychoeducation about sleep, discussion of sleep hygiene factors that disrupt and improve sleep, setting sleep hygiene goals, and developing action steps to achieve those goals.
Total
n=194 Participants
Total of all reporting groups
Age, Continuous
51.49 years
STANDARD_DEVIATION 14.50 • n=5 Participants
51.51 years
STANDARD_DEVIATION 12.83 • n=7 Participants
51.50 years
STANDARD_DEVIATION 13.69 • n=5 Participants
Sex: Female, Male
Female
21 Participants
n=5 Participants
24 Participants
n=7 Participants
45 Participants
n=5 Participants
Sex: Female, Male
Male
77 Participants
n=5 Participants
72 Participants
n=7 Participants
149 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
6 Participants
n=5 Participants
12 Participants
n=7 Participants
18 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
91 Participants
n=5 Participants
84 Participants
n=7 Participants
175 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
3 Participants
n=5 Participants
0 Participants
n=7 Participants
3 Participants
n=5 Participants
Race (NIH/OMB)
Asian
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 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
5 Participants
n=5 Participants
9 Participants
n=7 Participants
14 Participants
n=5 Participants
Race (NIH/OMB)
White
81 Participants
n=5 Participants
79 Participants
n=7 Participants
160 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
7 Participants
n=5 Participants
8 Participants
n=7 Participants
15 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
Region of Enrollment
United States
98 Participants
n=5 Participants
96 Participants
n=7 Participants
194 Participants
n=5 Participants
Insomnia Severity Index Change
19.52 units on a scale
STANDARD_DEVIATION 4.14 • n=5 Participants
18.58 units on a scale
STANDARD_DEVIATION 4.10 • n=7 Participants
19.06 units on a scale
STANDARD_DEVIATION 4.14 • n=5 Participants
Scale for Suicidal Ideation Change
3.21 units on a scale
STANDARD_DEVIATION 4.73 • n=5 Participants
3.88 units on a scale
STANDARD_DEVIATION 5.86 • n=7 Participants
3.54 units on a scale
STANDARD_DEVIATION 5.32 • n=5 Participants
PTSD Symptom Checklist-DSM 5 Change
45.29 units on a scale
STANDARD_DEVIATION 13.48 • n=5 Participants
41.53 units on a scale
STANDARD_DEVIATION 14.97 • n=7 Participants
43.43 units on a scale
STANDARD_DEVIATION 14.32 • n=5 Participants
Patient Health Questionnaire-Depression Change
15.88 units on a scale
STANDARD_DEVIATION 4.93 • n=5 Participants
14.47 units on a scale
STANDARD_DEVIATION 5.24 • n=7 Participants
15.18 units on a scale
STANDARD_DEVIATION 5.12 • n=5 Participants

PRIMARY outcome

Timeframe: Baseline (Week 0) and 6 Month follow-up (Week 30)

Population: All participants who were assigned to the arm.

The Insomnia Severity Index (ISI) is a 7-item self-report measure of insomnia symptoms. Each item is rated on a 0-4-point scale with a total score range of 0-28 where higher scores indicate greater severity.

Outcome measures

Outcome measures
Measure
CBT-I
n=98 Participants
Four individual sessions that will last approximately 15-30 minutes each across a 6-week time period, with the option to deliver sessions over the telephone as necessary. Cognitive Behavioral Therapy for Insomnia: The intervention will consist of a standard, structured, multi-component intervention for insomnia that includes sleep education, sleep hygiene, sleep restriction, stimulus control, and cognitive therapy.
Sleep Hygiene
n=96 Participants
Four individual sessions that will last 15-30 minutes each across a 6-week time period, with the option to deliver sessions over the telephone as necessary. Sleep Hygiene: The intervention will include basic psychoeducation about sleep, discussion of sleep hygiene factors that disrupt and improve sleep, setting sleep hygiene goals, and developing action steps to achieve those goals.
Insomnia Severity Index Change
8.54 score on a scale
Standard Deviation 6.03
11.88 score on a scale
Standard Deviation 6.36

SECONDARY outcome

Timeframe: Baseline (Week 0) and 6 Month follow-up (Week 30)

Population: All participants who were assigned to study arm.

The Scale for Suicidal Ideation is a clinician administered scale with 19-items related to suicidal ideation. Each item is rated on a 0-2 point scale with a total score range of 0-38 where higher scores indicate greater severity.

Outcome measures

Outcome measures
Measure
CBT-I
n=98 Participants
Four individual sessions that will last approximately 15-30 minutes each across a 6-week time period, with the option to deliver sessions over the telephone as necessary. Cognitive Behavioral Therapy for Insomnia: The intervention will consist of a standard, structured, multi-component intervention for insomnia that includes sleep education, sleep hygiene, sleep restriction, stimulus control, and cognitive therapy.
Sleep Hygiene
n=96 Participants
Four individual sessions that will last 15-30 minutes each across a 6-week time period, with the option to deliver sessions over the telephone as necessary. Sleep Hygiene: The intervention will include basic psychoeducation about sleep, discussion of sleep hygiene factors that disrupt and improve sleep, setting sleep hygiene goals, and developing action steps to achieve those goals.
Scale for Suicidal Ideation Change
1.08 score on a scale
Standard Deviation 2.08
3.10 score on a scale
Standard Deviation 5.12

SECONDARY outcome

Timeframe: Baseline (Week 0) and 6 Month follow-up (Week 30)

Population: All participants who were assigned to study arm.

The PTSD Symptom Checklist-DSM 5 version is a 20-item self-report measure of PTSD symptoms. Each item is rated on a 0-4 point scale with a total score range of 0-80 where higher scores indicate greater severity.

Outcome measures

Outcome measures
Measure
CBT-I
n=98 Participants
Four individual sessions that will last approximately 15-30 minutes each across a 6-week time period, with the option to deliver sessions over the telephone as necessary. Cognitive Behavioral Therapy for Insomnia: The intervention will consist of a standard, structured, multi-component intervention for insomnia that includes sleep education, sleep hygiene, sleep restriction, stimulus control, and cognitive therapy.
Sleep Hygiene
n=96 Participants
Four individual sessions that will last 15-30 minutes each across a 6-week time period, with the option to deliver sessions over the telephone as necessary. Sleep Hygiene: The intervention will include basic psychoeducation about sleep, discussion of sleep hygiene factors that disrupt and improve sleep, setting sleep hygiene goals, and developing action steps to achieve those goals.
PTSD Symptom Checklist-DSM 5 Change
29.68 score on a scale
Standard Deviation 18.02
29.94 score on a scale
Standard Deviation 17.62

SECONDARY outcome

Timeframe: Baseline (Week 0) and 6 Month follow-up (Week 30)

Population: All participants who were assigned to study arm.

The Patient Health Questionnaire-Depression is a 9-item self-report measure of depression symptoms. Each item is rated on a 0-3 point scale with a total score range of 0-27 where higher scores indicate greater severity.

Outcome measures

Outcome measures
Measure
CBT-I
n=98 Participants
Four individual sessions that will last approximately 15-30 minutes each across a 6-week time period, with the option to deliver sessions over the telephone as necessary. Cognitive Behavioral Therapy for Insomnia: The intervention will consist of a standard, structured, multi-component intervention for insomnia that includes sleep education, sleep hygiene, sleep restriction, stimulus control, and cognitive therapy.
Sleep Hygiene
n=96 Participants
Four individual sessions that will last 15-30 minutes each across a 6-week time period, with the option to deliver sessions over the telephone as necessary. Sleep Hygiene: The intervention will include basic psychoeducation about sleep, discussion of sleep hygiene factors that disrupt and improve sleep, setting sleep hygiene goals, and developing action steps to achieve those goals.
Patient Health Questionnaire-Depression Change
8.92 score on a scale
Standard Deviation 6.03
11.33 score on a scale
Standard Deviation 6.48

Adverse Events

CBT-I

Serious events: 3 serious events
Other events: 2 other events
Deaths: 0 deaths

Sleep Hygiene

Serious events: 4 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
CBT-I
n=98 participants at risk
Four individual sessions that will last approximately 15-30 minutes each across a 6-week time period, with the option to deliver sessions over the telephone as necessary. Cognitive Behavioral Therapy for Insomnia: The intervention will consist of a standard, structured, multi-component intervention for insomnia that includes sleep education, sleep hygiene, sleep restriction, stimulus control, and cognitive therapy.
Sleep Hygiene
n=96 participants at risk
Four individual sessions that will last 15-30 minutes each across a 6-week time period, with the option to deliver sessions over the telephone as necessary. Sleep Hygiene: The intervention will include basic psychoeducation about sleep, discussion of sleep hygiene factors that disrupt and improve sleep, setting sleep hygiene goals, and developing action steps to achieve those goals.
Cardiac disorders
Hospitalization
1.0%
1/98 • Number of events 1 • 30 weeks
2.1%
2/96 • Number of events 2 • 30 weeks
Musculoskeletal and connective tissue disorders
Hospitalization
0.00%
0/98 • 30 weeks
1.0%
1/96 • Number of events 1 • 30 weeks
Respiratory, thoracic and mediastinal disorders
Hospitalization
1.0%
1/98 • Number of events 1 • 30 weeks
0.00%
0/96 • 30 weeks
Psychiatric disorders
Hospitalization
1.0%
1/98 • Number of events 1 • 30 weeks
0.00%
0/96 • 30 weeks
Skin and subcutaneous tissue disorders
hospitalization
0.00%
0/98 • 30 weeks
1.0%
1/96 • Number of events 1 • 30 weeks

Other adverse events

Other adverse events
Measure
CBT-I
n=98 participants at risk
Four individual sessions that will last approximately 15-30 minutes each across a 6-week time period, with the option to deliver sessions over the telephone as necessary. Cognitive Behavioral Therapy for Insomnia: The intervention will consist of a standard, structured, multi-component intervention for insomnia that includes sleep education, sleep hygiene, sleep restriction, stimulus control, and cognitive therapy.
Sleep Hygiene
n=96 participants at risk
Four individual sessions that will last 15-30 minutes each across a 6-week time period, with the option to deliver sessions over the telephone as necessary. Sleep Hygiene: The intervention will include basic psychoeducation about sleep, discussion of sleep hygiene factors that disrupt and improve sleep, setting sleep hygiene goals, and developing action steps to achieve those goals.
Nervous system disorders
Emergency room visit for migraine headache
2.0%
2/98 • Number of events 2 • 30 weeks
0.00%
0/96 • 30 weeks

Additional Information

Wilfred Pigeon, PhD

Department of Veterans Affairs, Center of Excellence for Suicide Prevention

Phone: (585) 393-7918

Results disclosure agreements

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