NCT06130020

Brief Summary

Expressive writing involves writing about one's deepest thoughts and feelings surrounding an emotional event. The current literature on the efficacy of expressive writing is mixed and warrants further investigation into how, when, and for whom expressive writing is an effective intervention. The goal of this study is to compare the efficacy of expressive writing interventions in young adults when people imagine that they're writing to themselves vs. a loved one. Participants will carry out an expressive writing exercise for 14 consecutive days. Participants are randomized into 3 groups: Self, Other, and Control. The Self group is instructed to write as if they were talking to themselves. The Other group is instructed to direct their writing to someone they feel close to. The Control group is asked to write down a factual description of their routine that day, and direct this writing to themselves. We will recruit participants until we have usable data from 53 participants per group (i.e., 159 in total).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
160

participants targeted

Target at P75+ for not_applicable healthy

Timeline
Completed

Started Nov 2023

Typical duration for not_applicable healthy

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

First Submitted

Initial submission to the registry

November 6, 2023

Completed
4 days until next milestone

Study Start

First participant enrolled

November 10, 2023

Completed
3 days until next milestone

First Posted

Study publicly available on registry

November 13, 2023

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 30, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 30, 2025

Completed
Last Updated

February 23, 2026

Status Verified

February 1, 2026

Enrollment Period

2 years

First QC Date

November 6, 2023

Last Update Submit

February 20, 2026

Conditions

Keywords

expressive writingjournalingmental health

Outcome Measures

Primary Outcomes (2)

  • Anxiety

    Generalized Anxiety Disorder-7 (GAD-7). Scores range from 0-21, with higher scores indicating more severe anxiety.

    Initial visit (day 1), mid-point (day 7) final visit (day 15), 1-month follow-up (1 month after day 14)

  • Depression

    Patient Health Questionnaire-8 (PHQ-8). Scores range from 0-24, with higher scores indicating more severe depression.

    Initial visit (day 1), mid-point (day 7), final visit (day 15), 1-month follow-up (1 month after day 14)

Other Outcomes (10)

  • Sleep Quality

    Initial visit (day 1), final visit (day 15), 1-month follow-up (1 month after day 14)

  • Depression, Anxiety, and Stress

    Initial visit (day 1), final visit (day 15), 1-month follow-up (1 month after day 14)

  • Alexithymia (TAS)

    Initial visit (day 1), final visit (day 15), 1-month follow-up (1 month after day 14)

  • +7 more other outcomes

Study Arms (3)

Self

EXPERIMENTAL

The Self group is instructed to carry out the expressive writing exercise as if they were writing to themselves.

Behavioral: Expressive Writing: Self

Other

EXPERIMENTAL

The Other group is instructed to carry out the expressive writing exercise as if they were writing to someone they feel close to.

Behavioral: Expressive Writing: Other

Control

PLACEBO COMPARATOR

The Control group is asked to write down a factual description of their routine that day, as if they were writing to themselves.

Behavioral: Factual Writing

Interventions

This intervention consists of a daily expressive writing exercise carried out for 14 consecutive days, for 15 minutes each day. Expressive writing involves asking participants to write about their deepest thoughts and feelings surrounding an emotional event. Participants in this condition will write as if they are writing to themselves.

Self

This intervention consists of a daily expressive writing exercise carried out for 14 consecutive days, for 15 minutes each day. Expressive writing involves asking participants to write about their deepest thoughts and feelings surrounding an emotional event. Participants in this condition will write as if they are writing/talking to someone they're close to.

Other
Factual WritingBEHAVIORAL

This intervention consists of a daily factual writing exercise carried out for 14 consecutive days, for 15 minutes each day. Participants are asked to give a factual description of their day. This is a standard control for Expressive writing studies. Participants in this condition will be asked to direct their writing to themselves.

Control

Eligibility Criteria

Age18 Years - 25 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • US-based
  • Fluent English
  • Combined GAD-7 and PHQ-8 score of ≥ 5

You may not qualify if:

  • "Completion" of a writing session requires participants to spend at least 15 minutes on the writing page. We will monitor completion of the daily writing exercise, and will contact participants who miss or spend less than 15 minutes on the exercise. Participants who fail to complete 3 consecutive daily writing sessions will be deemed non-compliant, removed from the study, and paid a prorated amount for the tasks they have completed in the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Peretsman Scully Hall

Princeton, New Jersey, 08540, United States

Location

Related Publications (1)

  • Pennebaker JW, Beall SK. Confronting a traumatic event: toward an understanding of inhibition and disease. J Abnorm Psychol. 1986 Aug;95(3):274-81. doi: 10.1037//0021-843x.95.3.274. No abstract available.

    PMID: 3745650BACKGROUND

MeSH Terms

Conditions

Anxiety DisordersDepressionPsychological Well-Being

Condition Hierarchy (Ancestors)

Mental DisordersBehavioral SymptomsBehaviorPersonal Satisfaction

Study Officials

  • Erik Nook, PhD

    Princeton University

    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
SPONSOR

Study Record Dates

First Submitted

November 6, 2023

First Posted

November 13, 2023

Study Start

November 10, 2023

Primary Completion

October 30, 2025

Study Completion

October 30, 2025

Last Updated

February 23, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will share

Upon study completion, a subset of the de-identified data will be transferred to OSF, which will provide public access to this data. Writing content will not be transferred to OSF, though we will make thoroughly de-identified data available to researchers who have completed appropriate ethics training, agree to confidentiality restrictions, and whose research goals are in line with the purpose of this study.

Shared Documents
SAP, ANALYTIC CODE
Time Frame
Beginning after publication of results with no end date.
Access Criteria
A subset of the de-identified data will be publicly available on the OSF.

Locations