Mechanisms Of Change in Psychotherapy: The Effects of Cognitive Behavioral Therapy and Psychodynamic Therapy in Once - Versus Twice - Weekly Sessions on Outcomes in Depression.

Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-65
SponsorUniversity of Oslo

About this trial

The MOP II study examines how to improve therapy for people struggling with a depressive disorder. Cognitive Behavioral Therapy (CBT) and Short-Term Psychodynamic Psychotherapy (STPP) are two evidence-based treatments for depression that are widely used. Meta-analyses indicate that CBT and STPP are one average equally effective and superior to no treatment. However, many patients do not respond sufficiently and relapse rates after acute phase treatment are high.

Earlier research and theoretical insights suggest three promising strategies to enhance the effectiveness of psychotherapy. First, we want to examine whether increasing the frequency of the sessions will increase the effect of therapy. We want to compare once-weekly and twice-weekly sessions in both CBT and STPP to see whether more frequent sessions lead to better and more lasting reductions in depressive symptoms with the same total number of sessions.

Second, the study aims to answer what works for whom in two different psychotherapeutic approaches. People with depression differ in personality, life experiences, relationship styles, and how they understand the causes of their depression. Previous findings suggest that patients do better when the therapy approach matches how they see their problems. The MOP II study wants to replicate this finding.

Third, the study wants to examine how therapy leads to change. In CBT, improvement is thought to happen through changes in thinking patterns, such as fewer negative automatic thoughts and less rumination. In STPP, change is expected to come from better self-understanding, greater emotional awareness, and healthier ways of relating to others.

Consequently, the goal of the MOP II study is to find out whether more frequent therapy, better matching of patients to treatment type, and a clearer understanding of how therapy works can lead to faster improvement of depressive symptoms.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

age 18-65 years

Major Depressive Disorder Hamilton Depression Rating Scale (HDRS) > 14.

Speak and understand a Scandinavian language

Willingness and ability to give informed consent.

Disqualifiers

Current or past neurological illness

Traumatic brain injury

Current alcohol and/or substance dependency disorders

Psychotic disorders

Trial design

Design model

Parallel

Treatments tested in this trial

  • Cognitive behavior therapy

    Behavioral

    The study explores cognitive behavior therapy and psychodynamic therapy

  • Psychodynamic therapy

    Behavioral

    The patients will receive psychodynamic therapy

Treatment groups

200 Participants
are divided into 4 treatment groups
Group A: CBT once weeklyExperimental treatment 1 intervention
Group B: CBT twice weeklyExperimental treatment 1 intervention
Group C: STPP once weeklyExperimental treatment 1 intervention
Group D: STPP twice weeklyExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Hamilton Depression Rating Scale (HDRS)

Hamilton Depression Rating Scale (HDRS) is a clinician-rated questionnaire used to assess the severity of depressive symptoms. Higher total scores indicate more severe depression.

Time frame
From enrollment to the end of treatment at 28 weeks
2

The Patient Health Questionnaire (PHQ-9)

PHQ-9 is a 9-item scale that measures levels of depression. The PHQ-9 is a self assessment instrument and higher scores indicate more severe depressive symptoms

Time frame
From baseline (enrollment) to end of treatment at 28 weeks

Secondary outcomes

1

General Anxiety Disorder

GAD-7 measures levels of anxiety using a 7-item scale. Higher scores indicate more anxiety

Time frame
From baseline to end of treatment at 28 weeks
2

The Work And Social Adjustment Scale (WSAS)

WSAS is a five-item scale that assesses social and occupational functioning. Higher scores indicate poorer functioning

Time frame
From enrollment to end of treatment at 28 weeks
3

The Personality Inventory for DSM-5-Brief Form (PID-5-BF)-Adult

PID-5-BF contains 36 items and assesses pathological personality traits. Higher scores indicate stronger personality traits

Time frame
From enrollment to end of treatment at 28 weeks
4

The Level of Personality Functioning Scale-Brief Form (LPFS-BF)

LPFS-BF consists of 12 items and measures levels of maladaptive personality functioning. Higher scores indicate poorer personality functioning

Time frame
From enrollment to end of treatment at 28 weeks

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

University of Oslo

Lead sponsor

Oslo University Hospital

Sponsor institution

This trial is not recruiting at the moment. You can still explore other options: