NCT04864275

Brief Summary

P5 is planned as a prospective observational study, collecting evidence-based perioperative data on patient history and demographics, physical function, cognitive measures, psychological, and biological markers associated with increased pain susceptibility, and psychophysical measures of pain processing. The study will use daily ecologic momentary assessment (EMA) of physical and emotional parameters, and collect data on perioperative events. Follow up will occur 3 months and 6 months postoperatively.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
2,500

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Sep 2021

Longer than P75 for all trials

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 24, 2021

Completed
4 days until next milestone

First Posted

Study publicly available on registry

April 28, 2021

Completed
5 months until next milestone

Study Start

First participant enrolled

September 10, 2021

Completed
4.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 30, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 30, 2025

Completed
Last Updated

December 17, 2025

Status Verified

December 1, 2025

Enrollment Period

4.1 years

First QC Date

April 24, 2021

Last Update Submit

December 15, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Persistent Postsurgical Pain (PPSP)

    Clinically meaningful PPSP will be defined as pain in the surgical area present 3 months after surgery which fulfils one of the following criteria: 1) pain intensity on rest or movement ≥3 on 0-10 numerical rating scale (NRS), or 2) pain interference with any of the seven Brief Pain Inventory items (general activity, mood, walking ability, normal work \[including housework\], relations with other people, sleep, and enjoyment of life) ≥3 on 0-10 scale.

    up to 7 months following consent

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients who are 18 to 75 years of age and candidates for major surgery at Barnes-Jewish Hospital (expected surgery duration \>1h, and expected overnight admission to the hospital, or having one of the following procedures, even if outpatient (total joint replacement, hysterectomy, inguinal hernia repair, breast surgery, or video-assisted thoracic surgery (VATS)) will be approached for consent to this study. Participants will be recruited for participation in the study during their initial preoperative visit to the Center for Perioperative Assessment and Planning (CPAP).

You may qualify if:

  • Adults age 18-75 who are candidates for major surgery (expected surgery duration \>1 hour, and expected overnight admission to the hospital), or having one of the following procedures, even if outpatient (total joint replacement, hysterectomy, inguinal hernia repair, breast surgery, or video-assisted thoracic surgery (VATS)).
  • Access to a smartphone

You may not qualify if:

  • Participants who do not speak English

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Washington University in St Louis

St Louis, Missouri, 63110, United States

Location

Related Publications (4)

  • Weiser TG, Haynes AB, Molina G, Lipsitz SR, Esquivel MM, Uribe-Leitz T, Fu R, Azad T, Chao TE, Berry WR, Gawande AA. Size and distribution of the global volume of surgery in 2012. Bull World Health Organ. 2016 Mar 1;94(3):201-209F. doi: 10.2471/BLT.15.159293.

    PMID: 26966331BACKGROUND
  • Haroutiunian S, Nikolajsen L, Finnerup NB, Jensen TS. The neuropathic component in persistent postsurgical pain: a systematic literature review. Pain. 2013 Jan;154(1):95-102. doi: 10.1016/j.pain.2012.09.010.

    PMID: 23273105BACKGROUND
  • Kehlet H, Jensen TS, Woolf CJ. Persistent postsurgical pain: risk factors and prevention. Lancet. 2006 May 13;367(9522):1618-25. doi: 10.1016/S0140-6736(06)68700-X.

    PMID: 16698416BACKGROUND
  • Holzer KJ, Alaverdyan H, Xu Z, Frumkin MR, Frey KA, Gregory SH, Rodebaugh TL, Lu C, King CR, Head D, Kannampallil T, Haroutounian S. Protocol for Personalised Prediction of Persistent Postsurgical Pain. BMJ Open. 2026 Feb 4;16(2):e107055. doi: 10.1136/bmjopen-2025-107055.

Biospecimen

Retention: SAMPLES WITH DNA

Blood

MeSH Terms

Conditions

Pain, Postoperative

Condition Hierarchy (Ancestors)

Postoperative ComplicationsPathologic ProcessesPathological Conditions, Signs and SymptomsPainNeurologic ManifestationsSigns and Symptoms

Study Officials

  • Simon Haroutounian, PhD

    Associate Professor

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

April 24, 2021

First Posted

April 28, 2021

Study Start

September 10, 2021

Primary Completion

September 30, 2025

Study Completion

September 30, 2025

Last Updated

December 17, 2025

Record last verified: 2025-12

Locations