Skip to main content
Top
Published in: BMC Psychiatry 1/2021

Open Access 01-12-2021 | Mood Disorders | Study protocol

Investigating patient-specific mechanisms of change in SET vs. EFT for depression: study protocol for a mechanistic randomized controlled trial

Authors: Sigal Zilcha-Mano, Ben Shahar, Hadar Fisher, Tohar Dolev-Amit, Leslie S. Greenberg, Jacques P. Barber

Published in: BMC Psychiatry | Issue 1/2021

Login to get access

Abstract

Background

Major depressive disorder (MDD) is the leading cause of disability worldwide and one of the most heterogeneous mental health disorders. Although there are effective treatments for MDD, about 50% of patients do not respond to treatment. One of the greatest challenges in improving current treatments is identifying the mechanisms responsible for therapeutic change in MDD. The proposed study aims to identify patient-specific mechanisms of change in two treatments for MDD by investigating whether subpopulations of patients differ in the mechanisms of change that operate when receiving a given treatment. Based on theories of targeting weakness and building on strength, we will examine whether the mechanism of change operating when a treatment is provided depends on whether the treatment targets the patient’s strength or weakness.

Method

To test our hypothesis that two treatments, supportive-expressive treatment (SET) and emotion-focused treatment (EFT), differ in their mechanisms of change and to explore whether focusing on the patient’s strength or weakness will result in better treatment outcome, we conduct a mechanistic randomized controlled trial. One hundred and twenty-four individuals diagnosed with MDD are randomized to 16 sessions of either SET or EFT. The two treatments are theorized to differ in their main mechanism of change: SET places emphasis on insight as its main mechanism of change, and EFT places emphasis on emotional processing. Both can serve as strength- or weakness-focused treatments, based on the patient’s baseline levels of insight and emotional processing. The primary outcome is the Hamilton Rating Scale for Depression. Additional measures include self-report measures and clinical interviews, hormonal, motion, acoustic, physiological, and neuroimaging assessments, performance on cognitive tasks, and narrative material (collected from the sessions and interviews).

Discussion

The RCT will expand our understanding of mechanisms of change in psychotherapy, from one-size-fits-all to patient-specific mechanisms of change. By informing therapists about which of the two approaches is most effective with patients based on their baseline characteristics, the RCT will contribute to progress toward personalized treatment.

Trial registration

clinicaltrials.​gov Identifier: NCT04576182 submitted on October 1st 2020. Funding: The Israel Science Foundation. Trial status: Recruitment is ongoing.
Literature
1.
go back to reference Friedrich MJ. Depression is the leading cause of disability around the world. JAMA. 2017;317:1517.PubMed Friedrich MJ. Depression is the leading cause of disability around the world. JAMA. 2017;317:1517.PubMed
2.
go back to reference Crits-Christoph P, Gibbons MBC, Mukherjee D. Psychotherapy process outcome research. In: Oxford LMJ, editor. Bergin and Garfield’s handbook of psychotherapy and behavior change. 6th ed. England: Wiley; 2013. p. 298–340. Crits-Christoph P, Gibbons MBC, Mukherjee D. Psychotherapy process outcome research. In: Oxford LMJ, editor. Bergin and Garfield’s handbook of psychotherapy and behavior change. 6th ed. England: Wiley; 2013. p. 298–340.
8.
go back to reference Crits-Christoph P, Connolly Gibbons MB. Psychotherapy process – outcome research. In: Barkham M, Lutz W, Castonguay L, editors. Handbook of psychotherapy and behavior change. 7th ed. New York: Wiley; 2021. Crits-Christoph P, Connolly Gibbons MB. Psychotherapy process – outcome research. In: Barkham M, Lutz W, Castonguay L, editors. Handbook of psychotherapy and behavior change. 7th ed. New York: Wiley; 2021.
9.
go back to reference Barber JP, Muran JC, McCarthy KS, Keefe JR, Zilcha-Mano S. Research on dynamic therapies. In: Barkham M, Lutz W, Castonguay L, editors. Handbook of psychotherapy and behavior change. 7th ed. New York: Wiley; 2021. Barber JP, Muran JC, McCarthy KS, Keefe JR, Zilcha-Mano S. Research on dynamic therapies. In: Barkham M, Lutz W, Castonguay L, editors. Handbook of psychotherapy and behavior change. 7th ed. New York: Wiley; 2021.
12.
go back to reference Aafjes van Doorn K, Barber JP. Systematic review of in-session affect experience in cognitive behavioral therapy for depression. Cognit Ther Res. 2017;41:807–28.CrossRef Aafjes van Doorn K, Barber JP. Systematic review of in-session affect experience in cognitive behavioral therapy for depression. Cognit Ther Res. 2017;41:807–28.CrossRef
30.
go back to reference Luborsky L. Principles of psychoanalytic psychotherapy: a manual for supportive-expressive treatment. New York: Basic Books; 1984. Luborsky L. Principles of psychoanalytic psychotherapy: a manual for supportive-expressive treatment. New York: Basic Books; 1984.
31.
go back to reference Connolly Gibbons MB, Crits-Christoph P, Barber JP, Schamberger M. Insight in psychotherapy: a review of empirical literature. In: Castonguay LG, Hill C, editors. Insight in psychotherapy. Washington: American Psychological Association; 2007. p. 143–65. https://doi.org/10.1037/11532-007.CrossRef Connolly Gibbons MB, Crits-Christoph P, Barber JP, Schamberger M. Insight in psychotherapy: a review of empirical literature. In: Castonguay LG, Hill C, editors. Insight in psychotherapy. Washington: American Psychological Association; 2007. p. 143–65. https://​doi.​org/​10.​1037/​11532-007.CrossRef
32.
go back to reference Greenberg LS. Emotion-focused therapy. Washington: American Psychological Association; 2011. Greenberg LS. Emotion-focused therapy. Washington: American Psychological Association; 2011.
34.
go back to reference McAleavey AA, Castonguay LG. The process of change in psychotherapy: common and unique factors. In: Omar CGG, Alfred P, Bernd R, editors. Psychotherapy research. Vienna: Springer; 2015. p. 293–310. McAleavey AA, Castonguay LG. The process of change in psychotherapy: common and unique factors. In: Omar CGG, Alfred P, Bernd R, editors. Psychotherapy research. Vienna: Springer; 2015. p. 293–310.
35.
go back to reference Bordin ES. The generalizability of the psychoanalytic concept of the working alliance. Psychol Psychother. 1979;16:252–60. Bordin ES. The generalizability of the psychoanalytic concept of the working alliance. Psychol Psychother. 1979;16:252–60.
40.
go back to reference Sheehan DV, Lecrubier Y, Sheehan KH, Amorim P, Janavs J, Weiller E, et al. The Mini-International Neuropsychiatric Interview (MINI): the development and validation of a structured diagnostic psychiatric interview for DSM-IV and ICD-10. J Clin Psychiatry. 1998;59:22–33.PubMed Sheehan DV, Lecrubier Y, Sheehan KH, Amorim P, Janavs J, Weiller E, et al. The Mini-International Neuropsychiatric Interview (MINI): the development and validation of a structured diagnostic psychiatric interview for DSM-IV and ICD-10. J Clin Psychiatry. 1998;59:22–33.PubMed
41.
go back to reference Sheehan DV. Mini International Neuropsychiatric Interview English version 7.0.2 for DSM-5. University of South Florida College of Medicine; 2016. Sheehan DV. Mini International Neuropsychiatric Interview English version 7.0.2 for DSM-5. University of South Florida College of Medicine; 2016.
43.
go back to reference Rutherford BR, Taylor WD, Brown PJ, Sneed JR, Roose SP. Biological aging and the future of geriatric psychiatry. J Gerontol A Biol Sci Med Sci. 2016;72:343–52.CrossRef Rutherford BR, Taylor WD, Brown PJ, Sneed JR, Roose SP. Biological aging and the future of geriatric psychiatry. J Gerontol A Biol Sci Med Sci. 2016;72:343–52.CrossRef
44.
go back to reference Luborsky L. Supportive-expressive dynamic psychotherapy of depression: a time-limited version. In: Barber JP, Crits-Christoph P, editors. Dynamic therapies for psychiatric disorders. New York: Basic Books; 1995. p. 41–83. Luborsky L. Supportive-expressive dynamic psychotherapy of depression: a time-limited version. In: Barber JP, Crits-Christoph P, editors. Dynamic therapies for psychiatric disorders. New York: Basic Books; 1995. p. 41–83.
50.
go back to reference Beck AT, Steer RA, Brown GK. Beck depression inventory-II. San Antonio. 1996;78:490–8. Beck AT, Steer RA, Brown GK. Beck depression inventory-II. San Antonio. 1996;78:490–8.
51.
go back to reference Pfohl B, Blum N, Zimmerman M. Structured interview for DSM-IV personality: SIDP-IV. Arlington: VA:American Psychiatric Pub; 1997. Pfohl B, Blum N, Zimmerman M. Structured interview for DSM-IV personality: SIDP-IV. Arlington: VA:American Psychiatric Pub; 1997.
52.
go back to reference Moras, K. Early termination and the outcome of psychotherapy: Patients' perspectives. [Unpublished doctoral dissertation]. USA:Vanderbilt University; 1985. Moras, K. Early termination and the outcome of psychotherapy: Patients' perspectives. [Unpublished doctoral dissertation]. USA:Vanderbilt University; 1985.
53.
go back to reference Beck AT, Steer RA. Manual for the Beck anxiety inventory. San Antonio: Psychological Corporation; 1990. Beck AT, Steer RA. Manual for the Beck anxiety inventory. San Antonio: Psychological Corporation; 1990.
54.
go back to reference Lambert MJ, Vermeersch DA, Brown GJ. Administration and scoring manual for the OQ-30.2. East Setauket: American Professional Credentialing Services; 2004. Lambert MJ, Vermeersch DA, Brown GJ. Administration and scoring manual for the OQ-30.2. East Setauket: American Professional Credentialing Services; 2004.
56.
go back to reference Endicott J, Nee J, Harrison W, Blumenthal R. Quality of life enjoyment and satisfaction questionnaire: a new measure. Psychopharmacol Bull. 1993;29(2):321–6.PubMed Endicott J, Nee J, Harrison W, Blumenthal R. Quality of life enjoyment and satisfaction questionnaire: a new measure. Psychopharmacol Bull. 1993;29(2):321–6.PubMed
59.
go back to reference Gratz KL, Roemer L. Multidimensional assessment of emotion regulation and dysregulation: development, factor structure, and initial validation of difficulties in emotion regulation scale. J Psychopathol Behav Assess. 2004;36:41–54.CrossRef Gratz KL, Roemer L. Multidimensional assessment of emotion regulation and dysregulation: development, factor structure, and initial validation of difficulties in emotion regulation scale. J Psychopathol Behav Assess. 2004;36:41–54.CrossRef
61.
go back to reference Watson D, Clark LA, Tellegen A. Development and validation of brief measures of positive and negative affect: the PANAS scales. J Pers Soc Psychol. 1988;5:1063–70.CrossRef Watson D, Clark LA, Tellegen A. Development and validation of brief measures of positive and negative affect: the PANAS scales. J Pers Soc Psychol. 1988;5:1063–70.CrossRef
Metadata
Title
Investigating patient-specific mechanisms of change in SET vs. EFT for depression: study protocol for a mechanistic randomized controlled trial
Authors
Sigal Zilcha-Mano
Ben Shahar
Hadar Fisher
Tohar Dolev-Amit
Leslie S. Greenberg
Jacques P. Barber
Publication date
01-12-2021
Publisher
BioMed Central
Published in
BMC Psychiatry / Issue 1/2021
Electronic ISSN: 1471-244X
DOI
https://doi.org/10.1186/s12888-021-03279-y

Other articles of this Issue 1/2021

BMC Psychiatry 1/2021 Go to the issue