CI

At a glance

ClinicalIndex Comparison Record
N/AActive· 10,000 target
Drug / intervention
Not specified
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04798573
NCT04798573N/AActiveUpdate OverdueUpdated 11mo ago · Completion was 18mo ago
Enrollment Stalled

Phenomics and Genomics of Clinically Relevant Chronic Postsurgical Pain: A Multicenter Prospective Study

University Health Network, Toronto·observational·Posted Mar 15, 2021·Updated Jul 8, 2025

In Brief

An observational study for Chronic Pain and Surgery. Active but no longer recruiting, targeting 10,000 participants across 1 site.

Signals

Enrollment appears stalled

Detailed Summary

The investigators will approach elective cardiac and thoracic surgery patients in the preoperative consultation clinic. Consenting individuals will be administered, before surgery validated pain, psychological and sleep questionnaires. These questionnaires will be repeated at 3, 6 and 12 months postoperatively (PO) to follow up the progression of early PO pain and the transition to chronicity. Participants will define clinically relevant pain by calculating a chronic pain index (CPI). In addition, the investigators will follow the development of acute postsurgical and chronic pain from before surgery up to a year after, extract DNA from blood and contrast the genetic variations of participants with clinically significant chronic pain, to identify variations associated with the development of chronic post-surgical pain.

Study Details

Study Typeobservational
Allocation--
Masking--
Primary Purpose--
CountriesCanada
Collaborators--

Timeline

N/AActiveOverdue
20132014201520162017201820192020202120222023202420252026
First PostedMar 15, 2021
Enrollment StartAug 3, 2012
Primary CompletionDec 1, 2024
Study CompletionDec 1, 2025
TodayJul 2, 2026
Enrollment to primary: 12.3 yearsPosted 5.3 years ago