ClinicalTrials.gg
CompletedNCT03304392Updated Feb 20, 2020

Therapist-guided Internet-delivered Cognitive Behavioural Therapy

An interventional study of Personalized ICBT and Standard ICBT in Anxiety and Depression, sponsored by University of Regina. Completed at 1 site in Canada. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2020-02-20.

Primary conditionDepressionRegistry: Anxiety DisordersReclassifiedWhy we changed it
Registry
Anxiety Disorders — the first condition term the registry derived for this study.
ClinicalTrials.gg
Depression
Why
  1. The registry often attaches Anxiety Disorders to studies about something else, and this study's title and listed conditions do not name it.
  2. The study's listed conditions name Depression.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by University of Regina · Not applicable, Interventional, and Treatment

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Phase
Not applicable
Study type
Interventional
Enrollment
449
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 33 studies in Depression by University of Regina — 12 open to participants now, 12 under way, none of them phase 3. Depression · University of Regina.

Enrollment
4th of 31
449 · median 158
Started
2017
with 1 other
No phase
29 of 33
12 open now
Registered
1st of 33
by date

Among the 33 studies in Depression by University of Regina, this one is the 4th largest by enrollment of the 31 interventional ones that give a count, is one of 2 that started in 2017, is one of 29 with no phase, and was the 1st registered.

Depression

8,582 studies on the registry are indexed under Depression; 1,723 are open to participants now.

Browse Depression studies →

Open to participants now

12 of the 33 studies in Depression by University of Regina are open now, in 1 country. Recruiting first, the newest first:

7 more — sign in →

By country, each count listing its studies:

All 12 open studies →

Where they have run

Who these studies take

Of the 1,089 Depression studies recruiting now, 470 (43%) set no upper age limit and 519 (48%) stop at 75 or younger; 203 take children under 18; 311 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

Was this useful?
Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 33 studies in Depression by University of Regina, or all of them as a file.
02

Study summary

Depression and anxiety are prevalent and disabling conditions that often go untreated. Internet-delivered Cognitive Behaviour Therapy (ICBT) is a relatively new approach to treatment that is a convenient way for patients to access care. ICBT is typically highly standardized and involves patients reviewing weekly lessons over the Internet. Patients also receive brief weekly support from a therapist via secure emails or phone calls. Past research shows that \~75% of patients complete ICBT and report large symptom improvements. Although these results are very promising, research also suggests that ICBT could potentially be improved by being more personalized in terms of amount of therapist contact, especially for clients with more severe symptoms. The current trial will involve therapists who work in a clinic that specializes in ICBT. Over one year, 440 patients with depression and/or anxiety will be randomized to either receive standardized (5 lessons completed in 8 weeks; once week therapist contact) or personalized ICBT (5 lessons completed in 8 weeks; personalized therapist contact depending on needs of patient). Psychosocial outcomes of patients in the two treatment arms will be compared post-treatment and at 3-month, 6-month, and 1-year follow-up from enrollment. Data on intervention usage, satisfaction measures, and costs will also be assessed.

03

Conditions studied

  • Anxiety
  • Depression

Browse trials for

Keywords

  • anxiety
  • depression
  • internet-delivered cognitive behaviour therapy
  • randomized controlled trial
  • patient-centered
  • knowledge implementation
  • mental health system
  • therapist-assistance
04

In context

Depression Reclassified

8,582 studies on the registry are indexed under Depression; 1,723 are open to participants now.

This study's enrollment of 449 is above the median of 81 across 7,066 interventional studies indexed under Depression.

Browse Depression studies →

Lead sponsor

University of Regina is the lead sponsor of 58 studies on the registry; 23 are open to participants now.

Compared within Depression, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Anxiety Disorders. The counts are of registry records indexed under each term, refreshed daily. How we classify →

05

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 18 years of age or older
  • residing in Saskatchewan, Canada
  • endorsing symptoms of anxiety or depression
  • able to access a computer and internet service
  • willing to provide a physician as emergency contact

Exclusion criteria

Exclusion Criteria:

  • high suicide risk
  • suicide attempt or hospitalization in the last year
  • primary problems with psychosis, alcohol or drug problems, mania
  • currently receiving active psychological treatment for anxiety or depression
  • not present in province during treatment; concerns about online therapy
06

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
449 participants (actual)

Study arms

  • Experimental
    Personalized ICBT

    An 8-week transdiagnostic internet-delivered cognitive behavioural therapy (ICBT) will be delivered to participants. All clients will receive support from registered social workers, psychologists or supervised graduate students, with experience delivering ICBT, with contact depending upon group allocation. In addition to the online program, therapists, registered social workers, psychologists or supervised graduate students, with experience delivering ICBT will provide support within one business day of client emails. Amount of contact will be personalized to patients' needs.

    Behavioral: Personalized ICBT

  • Active comparator
    Standard ICBT

    An 8-week transdiagnostic internet-delivered cognitive behavioural therapy (ICBT) will be delivered to participants. All clients will receive support from registered social workers, psychologists or supervised graduate students, with experience delivering ICBT, with contact depending upon group allocation. In addition to the online program, therapists, registered social workers, psychologists or supervised graduate students, with experience delivering ICBT will provide support by email only once a week. Therapist will spend approximately 15 minutes per week/per client.

    Behavioral: Standard ICBT

Interventions

  • BehavioralPersonalized ICBT

    An 8-week transdiagnostic internet-delivered cognitive behavioural therapy (ICBT) will be delivered to participants. All clients will receive support from registered social workers, psychologists or supervised graduate students, with experience delivering ICBT, with contact depending upon group allocation. In addition to the online program, therapists, registered social workers, psychologists or supervised graduate students, with experience delivering ICBT will provide support within one business day of client emails. Amount of contact will be personalized to patients' needs.

  • BehavioralStandard ICBT

    An 8-week transdiagnostic internet-delivered cognitive behavioural therapy (ICBT) will be delivered to participants. All clients will receive support from registered social workers, psychologists or supervised graduate students, with experience delivering ICBT, with contact depending upon group allocation. In addition to the online program, therapists, registered social workers, psychologists or supervised graduate students, with experience delivering ICBT will provide support by email only once a week. Therapist will spend approximately 15 minutes per week/per client.

07

What researchers measure

Primary outcomes

  1. Change in depression

    Measured by Patient Health Questionnaire - 9 Item (PHQ-9)

    Time frame: baseline, start of each Lesson 2-5, 8 weeks, 3 months, 6 months, and 1 year follow up

  2. Change in anxiety

    Measured by Generalize Anxiety Disorder - 7 Item (GAD7)

    Time frame: baseline, start of each Lesson 2-5, 8 weeks, 3 months, 6 months, and 1 year follow up

Secondary outcomes

  1. Change in psychological distress

    Measured by Kessler 10-Item Scale

    Time frame: baseline, 8 weeks, 3 months, 6 months, and 1 year follow up

  2. Change in disability

    Measure by Sheehan Disability Scale-3 Item

    Time frame: baseline, 8 weeks, 3 months, 6 months, and 1 year follow up

  3. Change in panic symptoms

    Measured by Panic Disorder Severity Scale-Self Report

    Time frame: baseline, 8 weeks, 3 months, 6 months, and 1 year follow up

  4. Change in social anxiety symptoms

    Measured by Social Interaction Anxiety Scale

    Time frame: baseline, 8 weeks, 3 months, 6 months, and 1 year follow up

  5. Change in social phobia symptoms

    Measured by Social Phobia Scale-Short form

    Time frame: baseline, 8 weeks, 3 months, 6 months, and 1 year follow up

  6. Change in post-traumatic symptoms

    Measured by PTSD Checklist 5

    Time frame: Administered to only those participants meeting criteria for post-traumatic stress based on the modified brief Life Events Checklist for DSM 5 (LEC-5) at each time point: baseline, 3 months, 6 months, and 1 year follow up

  7. Change in quality of life symptoms

    Measured by EQ-5D-5L

    Time frame: baseline, 8 weeks, 3 months, 6 months, and 1 year follow up

  8. Change in treatment costs

    Measured by Treatment Inventory of Costs in Psychiatric Patients (TIC-P) Adapted for Canada

    Time frame: Part 1 and 2: baseline, 3 months, 6 months, and 1 year follow up; Part 3: baseline and 1 year follow up

  9. Therapeutic alliance

    Measured by Working Alliance Inventory-Short Form

    Time frame: 8 weeks

  10. Treatment credibility

    Measured by Credibility Questionnaire

    Time frame: baseline and 8 weeks

  11. Treatment satisfaction

    Measured by Internet-CBT Treatment Satisfaction Measure

    Time frame: 8 weeks

  12. Engagement

    Measured by: number of lessons completed, number of days of access, number of emails sent to therapist, number of phone calls with therapist, number of emails from therapist to client, total words emailed to therapist, total words emailed from therapist to patient

    Time frame: 8 weeks

08

Study locations

1 site
  • Online Therapy Unit, University of Regina
    Regina, Saskatchewan S4S 0A2, Canada
09

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Oct 2017 to primary completion in Oct 2019, 24 months.

Of 3,471 non-industry interventional studies with no phase under Depression, half reached primary completion within 21 months of starting (the median), counting those still running; a quarter within 10 and three quarters within 41. This study's 24 months is above that.

Counting every sponsor, half of 3,569 studies reached it within 21 months; a quarter within 9 and three quarters within 41.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 29, 2017
First posted
Oct 9, 2017
StartActual
Oct 11, 2017
Primary completionActual
Oct 15, 2019
CompletionActual
Oct 15, 2019
Last update
Feb 20, 2020
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 20, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03304392
Lead sponsor
University of Regina
Collaborators
Canadian Institutes of Health Research (CIHR)
Responsible party
Sponsor
First posted
Oct 9, 2017
Start date
Oct 11, 2017
Primary completion
Oct 15, 2019
Completion
Oct 15, 2019
Last update
Feb 20, 2020

Study contacts

Heather D Hadjistavropoulos, PhD
principal investigator · University of Regina

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Nov 2019. You cannot join it, but the record below documents what was studied.

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