Skip to content

Benefit on Chronic Pain of Early Screening and Management of Patients With Persistent Postoperative Pain at 3 Months

Benefit on Chronic Pain of Early Screening and Management of Patients With Persistent Postoperative Pain at 3 Months

Status
Not yet recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07160595
Acronym
DROPS
Enrollment
2052
Registered
2025-09-08
Start date
2025-11-30
Completion date
2028-04-30
Last updated
2025-09-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Postoperative Pain

Brief summary

Chronic postoperative pain has an overall incidence of approximately 30%, with 5% to 10% of cases classified as severe (numerical rating scale \> 6/10). However, its management remains suboptimal, primarily due to underdiagnosis and delayed referral of patients to specialized chronic pain centers. Improving the screening of patients with chronic postoperative pain is therefore crucial. Our research has shown that early detection of postoperative neuropathic pain is possible using just two text messages (SMS), as early as three months after surgery. Early screening, combined with prompt management, can prevent pain from becoming chronic and mitigate its harmful effects. Study design This study is a cluster crossover randomized trial. All participating centers (n=16) will take part in two sequential study periods: * Control Period: Without early treatment at 3 months During this period, patients with persistent postoperative pain-identified via SMS-will receive treatment at 6 months. This reflects the current standard of care for patients with postoperative pain. * Intervention Period: With early treatment at 3 months During this period, patients with persistent postoperative pain-identified via SMS-will receive early treatment starting at 3 months. Study Population The study will include patients undergoing the following minor surgical procedures: * Inguinal hernia repair * Breast reduction * Mastectomy with lymph node dissection * Knee arthroscopy * Knee ligament reconstruction Study Schedule Recruitment Period: 24 months Patient Follow-up: 6 months Total Estimated Study Duration: 30 months

Interventions

OTHEREarly management of postoperative pain at 3 months detected using sms

During this period, patients with persistent post-operative pain, identified through SMS screening, will receive early treatment starting at 3 months.

Sponsors

Fondation Hôpital Saint-Joseph
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
SCREENING
Masking
NONE

Intervention model description

This study is a cluster crossover randomized trial. All participating centers (n=16) will take part in two sequential study periods: * Control Period: Without early treatment at 3 months During this period, patients with persistent postoperative pain-identified via SMS-will receive treatment at 6 months. This reflects the current standard of care for patients with postoperative pain. * Intervention Period: With early treatment at 3 months During this period, patients with persistent postoperative pain-identified via SMS-will receive early treatment starting at 3 months. Each center will be randomized into one of two sequences: control period followed by intervention period or intervention period followed by control period.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients who have undergone one of the following procedures: * Inguinal hernia repair, regardless of the surgical technique used * Breast reduction * Mastectomy with or without reconstruction but with lymph node dissection * Knee arthroscopy or knee ligamentoplasty * Patients with a smartphone * French-speaking patients * Patients affiliated with a social security * Patients who have given their free and informed verbal consent

Exclusion criteria

* Patients with pain sensitivity defined by the presence of chronic pain, use of level 3 morphine analgesics, use of anxiolytics, gabapentinoids and/or antidepressants * Patients subject to legal protection measures * Patients deprived of their liberty * Pregnant, labouring or breastfeeding patients

Design outcomes

Primary

MeasureTime frame
Proportion of patients with chronic post-operative pain at 6 months.6 months post-operative

Secondary

MeasureTime frame
Types of chronic post-operative pain at 3 and 6 months: frequency of neuropathic pain and pain due to excessive nociception3 and 6 months post-operative
Proportion of patients responding to SMS during the various assessments3 and 6 months post-operative
Sensitivity and specificity of SMS for diagnosing pain with neuropathic characteristics post-operatively at 3 and 6 months3 and 6 month post-operative
Proportion of patients with pain at 3 and 6 months according to the type of surgery3 and 6 months post-operative

Countries

France

Contacts

Primary ContactFrédéric ADAM, Doctor of Medicine
fadam@ghpsj.fr01 44 12 36 18
Backup ContactCélia MAMMA
cmamma@ghpsj.fr01 44 12 32 54

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026