Trial Outcomes & Findings for Online Peer Networked Collaborative Learning for Managing Depressive Symptoms (NCT NCT02841787)

NCT ID: NCT02841787

Last Updated: 2018-10-29

Results Overview

The PHQ-9 measures degree of depression severity. Possible range of scores for the PHQ-9 is 0-27. Higher values represent a worse outcome. Specifically, scores of 0-4 indicate minimal or no depression; 5-9 is mild; 10-14 is moderate; 15-19 is moderately severe; and 20-27 is severe. The data table below shows PHQ-9 pre- and post- intervention score differences by group.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

47 participants

Primary outcome timeframe

Baseline and Week 8 - Difference in PHQ-9 score

Results posted on

2018-10-29

Participant Flow

Participant milestones

Participant milestones
Measure
Individual Internet Intervention (III)
Coached internet intervention based on the principles of cognitive behavioral therapy (CBT) for depressed older adults delivered individually by 2 clinical psychologists.
Internet Intervention With Peer Support (II+PS)
Coached internet intervention based on the principles of cognitive behavioral therapy (CBT) for depressed older adults delivered with peer support; group moderation was provided by 2 clinical psychologists.
Waitlist Control (WLC)
WLC participants received access to the III following the 8-week waiting period.
Overall Study
STARTED
12
23
12
Overall Study
COMPLETED
9
19
12
Overall Study
NOT COMPLETED
3
4
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Individual Internet Intervention (III)
Coached internet intervention based on the principles of cognitive behavioral therapy (CBT) for depressed older adults delivered individually by 2 clinical psychologists.
Internet Intervention With Peer Support (II+PS)
Coached internet intervention based on the principles of cognitive behavioral therapy (CBT) for depressed older adults delivered with peer support; group moderation was provided by 2 clinical psychologists.
Waitlist Control (WLC)
WLC participants received access to the III following the 8-week waiting period.
Overall Study
Lost to Follow-up
1
0
0
Overall Study
Symptoms dropped below threshold
1
0
0
Overall Study
Withdrawal by Subject
1
4
0

Baseline Characteristics

Online Peer Networked Collaborative Learning for Managing Depressive Symptoms

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Individual Internet Intervention (III)
n=12 Participants
Coached internet intervention based on the principles of cognitive behavioral therapy (CBT) for depressed older adults delivered individually by 2 clinical psychologists.
Internet Intervention With Peer Support (II+PS)
n=23 Participants
Coached internet intervention based on the principles of cognitive behavioral therapy (CBT) for depressed older adults delivered with peer support; group moderation was provided by 2 clinical psychologists.
Waitlist Control (WLC)
n=12 Participants
WLC participants received access to the III following the 8-week waiting period.
Total
n=47 Participants
Total of all reporting groups
Education
Some High School
0 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
1 Participants
n=4 Participants
Education
Some College
1 Participants
n=5 Participants
5 Participants
n=7 Participants
1 Participants
n=5 Participants
7 Participants
n=4 Participants
Age, Continuous
69.2 years
STANDARD_DEVIATION 3.4 • n=5 Participants
69.5 years
STANDARD_DEVIATION 4.3 • n=7 Participants
70 years
STANDARD_DEVIATION 4.7 • n=5 Participants
69.6 years
STANDARD_DEVIATION 4.1 • n=4 Participants
Sex: Female, Male
Female
8 Participants
n=5 Participants
16 Participants
n=7 Participants
8 Participants
n=5 Participants
32 Participants
n=4 Participants
Sex: Female, Male
Male
4 Participants
n=5 Participants
7 Participants
n=7 Participants
4 Participants
n=5 Participants
15 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=5 Participants
1 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
12 Participants
n=5 Participants
22 Participants
n=7 Participants
12 Participants
n=5 Participants
46 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 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
0 Participants
n=4 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
2 Participants
n=4 Participants
Race (NIH/OMB)
White
11 Participants
n=5 Participants
19 Participants
n=7 Participants
11 Participants
n=5 Participants
41 Participants
n=4 Participants
Race (NIH/OMB)
More than one race
1 Participants
n=5 Participants
2 Participants
n=7 Participants
0 Participants
n=5 Participants
3 Participants
n=4 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
1 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 Participants
Annual gross household income (x1000)
37.5 USD
n=5 Participants
37 USD
n=7 Participants
50 USD
n=5 Participants
41 USD
n=4 Participants
Marital Status
No Partner
8 Participants
n=5 Participants
16 Participants
n=7 Participants
5 Participants
n=5 Participants
29 Participants
n=4 Participants
Marital Status
Partner
4 Participants
n=5 Participants
7 Participants
n=7 Participants
7 Participants
n=5 Participants
18 Participants
n=4 Participants
Education
2-yr College (Associate's)
0 Participants
n=5 Participants
5 Participants
n=7 Participants
2 Participants
n=5 Participants
7 Participants
n=4 Participants
Education
4-yr College (Bachelor's)
3 Participants
n=5 Participants
6 Participants
n=7 Participants
4 Participants
n=5 Participants
13 Participants
n=4 Participants
Education
Master's Degree
5 Participants
n=5 Participants
5 Participants
n=7 Participants
2 Participants
n=5 Participants
12 Participants
n=4 Participants
Education
Doctoral Degree (PhD, MD, JD)
3 Participants
n=5 Participants
2 Participants
n=7 Participants
2 Participants
n=5 Participants
7 Participants
n=4 Participants
Employment Status
Employed
3 Participants
n=5 Participants
4 Participants
n=7 Participants
3 Participants
n=5 Participants
10 Participants
n=4 Participants
Employment Status
Retired
9 Participants
n=5 Participants
18 Participants
n=7 Participants
7 Participants
n=5 Participants
34 Participants
n=4 Participants
Employment Status
Unemployed/Disability
0 Participants
n=5 Participants
1 Participants
n=7 Participants
2 Participants
n=5 Participants
3 Participants
n=4 Participants
Health Insurance
Insured
12 Participants
n=5 Participants
22 Participants
n=7 Participants
12 Participants
n=5 Participants
46 Participants
n=4 Participants
Health Insurance
Medicare
10 Participants
n=5 Participants
19 Participants
n=7 Participants
11 Participants
n=5 Participants
40 Participants
n=4 Participants
Health Insurance
Medicaid
1 Participants
n=5 Participants
3 Participants
n=7 Participants
0 Participants
n=5 Participants
4 Participants
n=4 Participants
Taking antidepressant medication
No
7 Participants
n=5 Participants
18 Participants
n=7 Participants
7 Participants
n=5 Participants
32 Participants
n=4 Participants
Taking antidepressant medication
Yes
5 Participants
n=5 Participants
5 Participants
n=7 Participants
5 Participants
n=5 Participants
15 Participants
n=4 Participants

PRIMARY outcome

Timeframe: Baseline and Week 8 - Difference in PHQ-9 score

The PHQ-9 measures degree of depression severity. Possible range of scores for the PHQ-9 is 0-27. Higher values represent a worse outcome. Specifically, scores of 0-4 indicate minimal or no depression; 5-9 is mild; 10-14 is moderate; 15-19 is moderately severe; and 20-27 is severe. The data table below shows PHQ-9 pre- and post- intervention score differences by group.

Outcome measures

Outcome measures
Measure
Individual Internet Intervention (III)
n=9 Participants
Coached internet intervention based on the principles of cognitive behavioral therapy (CBT) for depressed older adults delivered individually by 2 clinical psychologists.
Internet Intervention With Peer Support (II+PS)
n=19 Participants
Coached internet intervention based on the principles of cognitive behavioral therapy (CBT) for depressed older adults delivered with peer support; group moderation was provided by 2 clinical psychologists.
Waitlist Control (WLC)
n=12 Participants
WLC participants received access to the III following the 8-week waiting period.
Patient Health Questionnaire - 9 (PHQ-9) - Depression Severity Module
-5.4 units on a scale
Standard Deviation 2.4
-4.8 units on a scale
Standard Deviation 4.4
-1.1 units on a scale
Standard Deviation 4.7

PRIMARY outcome

Timeframe: 8 weeks

Population: Out of the 12 participants who started Individual Internet Intervention, one participant was administratively dropped (no longer eligible for the study) before treatment started; only 11 participants were analyzed.

Outcome measures

Outcome measures
Measure
Individual Internet Intervention (III)
n=11 Participants
Coached internet intervention based on the principles of cognitive behavioral therapy (CBT) for depressed older adults delivered individually by 2 clinical psychologists.
Internet Intervention With Peer Support (II+PS)
n=23 Participants
Coached internet intervention based on the principles of cognitive behavioral therapy (CBT) for depressed older adults delivered with peer support; group moderation was provided by 2 clinical psychologists.
Waitlist Control (WLC)
WLC participants received access to the III following the 8-week waiting period.
Mean Number of Sessions Across the 8-week Trial
45.6 number of sessions
Standard Deviation 24.9
49.1 number of sessions
Standard Deviation 35.8

PRIMARY outcome

Timeframe: Week 8

Population: Participants were included in outcome analyses if they completed assessments at both baseline and week 8; for the Individual Internet Intervention (III) arm, 9 participants met this criterion, and for Internet Intervention with Peer Support (II+PS), 21 participants met this criterion.

The System Usability Scale (SUS) is a usability scale that can be used for global assessments of systems usability. It consists of a 10 item questionnaire with five response options for respondents; from Strongly agree to Strongly disagree. Originally created by John Brooke in 1986, it allows you to evaluate a wide variety of products and services, including hardware, software, mobile devices, websites and applications. The participant's scores for each question are converted to a new number, added together and then multiplied by 2.5 to convert the original scores of 0-40 to 0-100. A SUS score above a 68 would be considered above average and anything below 68 is below average.

Outcome measures

Outcome measures
Measure
Individual Internet Intervention (III)
n=9 Participants
Coached internet intervention based on the principles of cognitive behavioral therapy (CBT) for depressed older adults delivered individually by 2 clinical psychologists.
Internet Intervention With Peer Support (II+PS)
n=21 Participants
Coached internet intervention based on the principles of cognitive behavioral therapy (CBT) for depressed older adults delivered with peer support; group moderation was provided by 2 clinical psychologists.
Waitlist Control (WLC)
WLC participants received access to the III following the 8-week waiting period.
System Usability Scale (SUS)
68.75 units on a scale
Standard Deviation 16.09
60.5 units on a scale
Standard Deviation 16.69

PRIMARY outcome

Timeframe: 8 weeks

Population: Participants were included in outcome analyses if they completed assessments at both baseline and week 8; for the Individual Internet Intervention (III) arm, 9 participants met this criterion, and for Internet Intervention with Peer Support (II+PS), 19 participants met this criterion.

The average time spent on messages and calls and on group moderation.

Outcome measures

Outcome measures
Measure
Individual Internet Intervention (III)
n=9 Participants
Coached internet intervention based on the principles of cognitive behavioral therapy (CBT) for depressed older adults delivered individually by 2 clinical psychologists.
Internet Intervention With Peer Support (II+PS)
n=19 Participants
Coached internet intervention based on the principles of cognitive behavioral therapy (CBT) for depressed older adults delivered with peer support; group moderation was provided by 2 clinical psychologists.
Waitlist Control (WLC)
WLC participants received access to the III following the 8-week waiting period.
Average Coaching Time Per Participant by Group
134.33 Minutes
Standard Deviation 28.43
92.43 Minutes
Standard Deviation 32.36

Adverse Events

Individual Internet Intervention (III)

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

Internet Intervention With Peer Support (II+PS)

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

Waitlist Control (WLC)

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

David C. Mohr, PhD

Northwestern University

Phone: 312-503-1403

Results disclosure agreements

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