NCT03439748

Brief Summary

The purpose of this study is to evaluate the efficacy and targets of Positive Affect Treatment, a psychotherapy specifically aimed at enhancing reward sensitivity in individuals with low positive affect (a core feature of anhedonia) in the context of depression or anxiety. Target enrollment is 68 male and female participants with low positive affect and depression or anxiety and impaired functioning, between the ages of 18 and 65 years, who will be randomized to either Positive Affect Treatment or Negative Affect Treatment (designed to reduce threat sensitivity). Participants will complete laboratory tests, psychiatric assessments, and self-report questionnaires as part of the study. The total length of participation is around 4 months.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
85

participants targeted

Target at P25-P50 for not_applicable depression

Timeline
Completed

Started Feb 2019

Typical duration for not_applicable depression

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 5, 2018

Completed
15 days until next milestone

First Posted

Study publicly available on registry

February 20, 2018

Completed
12 months until next milestone

Study Start

First participant enrolled

February 1, 2019

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2021

Completed
2.4 years until next milestone

Results Posted

Study results publicly available

December 7, 2023

Completed
Last Updated

June 12, 2024

Status Verified

June 1, 2024

Enrollment Period

2.4 years

First QC Date

February 5, 2018

Results QC Date

July 20, 2022

Last Update Submit

June 10, 2024

Conditions

Outcome Measures

Primary Outcomes (3)

  • Positive Affect Subscale of the Positive and Negative Affect Scale (PANAS-P)

    Reported positive affect. Scores can range from 10-50, with higher scores representing higher levels of positive affect.

    Week 0, Week 5, Week 10, Week 16

  • Interviewer Anhedonia Ratings

    Interviewer ratings of interest, pleasure, and motivation in hobbies/pastimes, foods/drinks, social activities (score range: 1-12), higher scores indicate lower anhedonia.

    Week 0, Week 5, Week 10, Week 16

  • Depression Anxiety and Stress Scale (DASS-21)

    Reported symptoms of depression, anxiety, and stress (score range: 0-63), higher scores indicate higher symptom severity and frequency.

    Week 0, Week 5, Week 10, Week 16

Secondary Outcomes (15)

  • Sheehan Disability Scale (SDS)

    Week 0, Week 5, Week 10, Week 16

  • Beck Depression Inventory (BDI)

    Week 0, Week 5, Week 10, Week 16

  • Daily Activity/Social Interaction (Actigraph)

    Week 0, Week 5, Week 10, Week 16

  • Effort Expenditure for Rewards Task (EEfRT)

    Week 0, Week 5, Week 10, Week 16

  • Monetary Incentive Task

    Week 0, Week 5, Week 10, Week 16

  • +10 more secondary outcomes

Study Arms (2)

Positive Affect Treatment

EXPERIMENTAL

15 sessions of psychotherapy designed to augment reward anticipation, reward attainment, and reward learning.

Behavioral: Positive Affect Treatment

Negative Affect Treatment

ACTIVE COMPARATOR

15 sessions of psychotherapy designed to decrease threat avoidance, threat appraisal and arousal.

Behavioral: Negative Affect Treatment

Interventions

Sessions 1-7: Pleasurable activities + imaginal recounting and reinforcement of positive mood effects (continued for sessions 8-15) Sessions 8-10: Cognitive exercises focusing on identifying positive aspects of experience, taking responsibility for positive outcomes, and imagining future positive events Sessions 11-14: Exercises to cultivate and savor positive experiences Session 15: Relapse prevention.

Positive Affect Treatment

Sessions 1-7: Exposure therapy to feared or avoided situations, sensations, or memories (continued for sessions 8-15) Sessions 8-10: Cognitive restructuring of probability, cost, and attributional biases Sessions 11-14: Capnometry-assisted respiratory training Session 15: Relapse prevention

Negative Affect Treatment

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • English-speaking
  • Low positive affect indexed by less than or equal to 24 on the positive affect subscale of the PANAS (i.e., PANAS-P); and scores of greater than or equal to 11 for depression, greater to or equal to 6 for anxiety, or greater to or equal to 10 for stress on the Depression, Anxiety, and Stress Scale; and scores of greater than or equal to 5 on any Sheehan Disability Scale subscale.
  • Willingness to refrain from starting other psychosocial or pharmacological treatments until study completion.

You may not qualify if:

  • Patient report of serious medical conditions - such as history of serious, uncontrolled medical illness, or instability (including significant cardio-pulmonary disease, organic brain syndrome, seizure disorder, cerebrovascular disease, thyroid dysfunction, and diabetes)
  • Active suicidal ideation
  • Lifetime history of bipolar disorder, psychosis, mental retardation, or organic brain damage
  • Substance abuse in the last 6 months or dependence within last 12 months.
  • or more cigarettes per week or nicotine equivalent.
  • History of marijuana, cocaine or stimulant use 5-7 times/week or more before age 15 (e.g., amphetamine, cocaine, methamphetamine)
  • Pregnancy
  • Bupropion, dopaminergic or neuroleptic medication use in the past 6 months
  • Heterocyclics and SSRIs are permitted if stabilized (3 months) and PRN benzodiazepines and beta-blockers are permitted but discouraged on laboratory assessment visits
  • Refusal of video/audio-taping

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

University of California, Los Angeles

Los Angeles, California, 90095, United States

Location

Southern Methodist University

Dallas, Texas, 75205, United States

Location

Related Publications (2)

  • Uribe S, Kumar D, Rosenfield D, Ritz T, Meuret AE. From in-person to virtual: The impact of crisis-enforced delivery change on treatment for low positive affect, depression, and anxiety. J Affect Disord. 2025 Dec 15;391:119864. doi: 10.1016/j.jad.2025.119864. Epub 2025 Jul 11.

  • Craske MG, Meuret AE, Echiverri-Cohen A, Rosenfield D, Ritz T. Positive affect treatment targets reward sensitivity: A randomized controlled trial. J Consult Clin Psychol. 2023 Jun;91(6):350-366. doi: 10.1037/ccp0000805. Epub 2023 Mar 9.

MeSH Terms

Conditions

DepressionAnxiety Disorders

Condition Hierarchy (Ancestors)

Behavioral SymptomsBehaviorMental Disorders

Limitations and Caveats

Generalizability from academic to community settings; Sample was selected to have low positive affect, thus results may not generalize to samples diagnosed with anhedonia; Lack of follow-up assessment prevented evaluation of long-term changes in target measures and outcomes; Sample powered for moderate or larger effects, while smaller effects may require larger samples; Participants not blinded to condition; NAT was not representative of typical cognitive-behavioral therapy for depression.

Results Point of Contact

Title
Dr. Michelle G. Craske
Organization
UCLA

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

February 5, 2018

First Posted

February 20, 2018

Study Start

February 1, 2019

Primary Completion

June 30, 2021

Study Completion

June 30, 2021

Last Updated

June 12, 2024

Results First Posted

December 7, 2023

Record last verified: 2024-06

Locations