NCT04099537

Brief Summary

Pathological skin picking (PSP) is conceptualized as a behavioral addiction. Research has shown that behavioral addictions (e.g., problematic alcoholism or smoking) can be reduced using a cognitive retraining tool called approach-avoidance training (AAT). Participants will be randomly assigned to a single-session of AAT: (a) approach training, (b) avoidance training, or (c) placebo training and will be assessed at baseline, post-training (i.e., 30 minutes after training), and 2-week follow up. The investigators hypothesize that those in the approach training will show greater reduction in approach tendencies at post-treatment and 2-week follow up, compared to those in the approach training or placebo conditions. This study may produce data that will guide the development of a training program that focuses on the maladaptive action tendencies in skin picking symptoms.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
45

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jul 2018

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 2, 2018

Completed
8 months until next milestone

First Submitted

Initial submission to the registry

March 9, 2019

Completed
7 months until next milestone

First Posted

Study publicly available on registry

September 23, 2019

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 22, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 22, 2020

Completed
Last Updated

February 28, 2022

Status Verified

February 1, 2022

Enrollment Period

2 years

First QC Date

March 9, 2019

Last Update Submit

February 10, 2022

Conditions

Keywords

skin pickingcognitive trainingapproach-avoidance

Outcome Measures

Primary Outcomes (1)

  • Changes in Behavioral Approach Tendency After a Single Training Session

    This assessment evaluates behavioral approach (i.e., reaction time to avoid - reaction to approach) to irregular skin stimuli before and after training (i.e., the AAT). The investigators will measure reaction time to approach irregular skin stimuli before training and then measure changes in reaction time to approach irregular skin stimuli immediately after training (i.e., post-training; defined as 30 minutes after training). The investigators will then average the reaction time for each group, and then evaluate statistical differences between groups.

    Pre-training, Post-training (30-minutes after training)

Secondary Outcomes (2)

  • Changes in Urges to Pick After Training

    Pre-training, Post-training (30-minutes after training)

  • Changes in scores on the Skin Picking Scale-Revised (SPS-R).

    Pre-training, 2 weeks (follow-up)

Study Arms (3)

Approach cognitive training

EXPERIMENTAL

This training is a single session training. Each session lasts about 30 minutes where participants are to pull the joystick toward (approach) them when seeing skin stimuli on a computer screen.

Behavioral: Computerized cognitive training

Avoidance cognitive training

EXPERIMENTAL

This training is a single session training. Each session lasts about 30 minutes where participants are to push the joystick away (avoidance) from them when seeing skin stimuli on a computer screen.

Behavioral: Computerized cognitive training

Placebo cognitive training

PLACEBO COMPARATOR

This training is a single session training. Each session lasts about 30 minutes where participants are to push and pull the joystick towards or away from them (no rule) when seeing skin stimuli on a computer screen.

Behavioral: Computerized cognitive training

Interventions

Participants are trained to approach or avoid stimuli of skin using a joystick. Participants are to pull or push the joystick toward or away when skin stimuli are present. Thus, behaviorally, there may be an increase, decrease, or no change in approach tendencies towards skin.

Approach cognitive trainingAvoidance cognitive trainingPlacebo cognitive training

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • A current diagnosis of skin picking
  • Moderate symptoms of skin picking a Skin Picking Severity Scale (SPS) score of ≥ 7
  • Ages 18-60,
  • Fluent English speakers.

You may not qualify if:

  • Self-reported visual impairment that cannot be adjusted and will prevent participants from clearly recognizing words and pictures on computer screen
  • A positive diagnosis of bipolar disorder or psychotic disorder

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Psychology Clinic, University of Wisconsin-Milwaukee

Milwaukee, Wisconsin, 53211, United States

Location

MeSH Terms

Conditions

Excoriation Disorder

Condition Hierarchy (Ancestors)

Self-Injurious BehaviorBehavioral SymptomsBehaviorObsessive-Compulsive DisorderAnxiety DisordersMental DisordersDisruptive, Impulse Control, and Conduct Disorders

Study Officials

  • Han Joo Lee, Ph.D.

    University of Wisconsin, Milwaukee

    PRINCIPAL INVESTIGATOR

Study Design

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

Study Record Dates

First Submitted

March 9, 2019

First Posted

September 23, 2019

Study Start

July 2, 2018

Primary Completion

June 22, 2020

Study Completion

June 22, 2020

Last Updated

February 28, 2022

Record last verified: 2022-02

Data Sharing

IPD Sharing
Will not share

Locations