NCT06126289

Brief Summary

The purpose of this study is to assess the proteomics and transcriptomic differences between pain-free control subjects and patients with chronic postoperative pain through single-cell sequencing technology.

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
20

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Dec 2023

Status
unknown

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

October 31, 2023

Completed
13 days until next milestone

First Posted

Study publicly available on registry

November 13, 2023

Completed
1 month until next milestone

Study Start

First participant enrolled

December 25, 2023

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 30, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 30, 2025

Completed
Last Updated

November 13, 2023

Status Verified

June 1, 2023

Enrollment Period

1.6 years

First QC Date

October 31, 2023

Last Update Submit

November 6, 2023

Conditions

Keywords

Chronic Postsurgical painSingle-cell sequencingCerebrospinal Fluid

Outcome Measures

Primary Outcomes (2)

  • Significantly different proteomics and transcriptomes between Chronic Postsurgical Pain and pain-free subjects

    Differences in the proteins in the fluid around the lumbar, between Chronic Postsurgical Pain and Pain-free subjects.,will be quantified using Mass spectrometry,for: neural cell adhesion molecule L1, complement C4-A, lysozyme C, receptor-type tyrosine-protein phosphatase zeta, apolipoprotein D, alpha-1-antichymotrypsin, granulins, calcium/calmodulin-dependent protein kinase type II subunit alpha, mast/stem cell growth factor receptor Kit, prolow-density lipoprotein receptor-related protein 1 and so on. These proteins may identify the disease and define its mechanism.

    Up to 3 months after fixation

  • Inflammatory cytokines in Chronic Postsurgical Pain patients

    Biomarkers from CSF will be quantified using Meso Scale Discovery multiplex kit (K15210D), for: CRP, Eotaxin, Eotaxin-3, FGF (basic), ICAM-1, IFN-γ, IL-1α, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-7, IL-8, IL-10, IL-12/IL-23p40, IL-13, IL-15, IL-16, IL-17A, IP-10, MCP-1, MCP-4, MDC, MIP-1α, MIP-1β, PlGF, SAA, TARC, Tie-2, TNF-α, TNF-β, VCAM-1, VEGF-A, VEGF-C, VEGF-D, VEGFR-1/Flt-1. The levels of these biomarkers will be compared between the group between CPSP and pain-free subjects.

    Up to 3 months after fixation surgery

Study Arms (2)

Pain-free control subjects

According to the 11th Revision of International Classification of Diseases (ICD-11) of International Association for the Study of Pain(IASP) in 2019, diagnose whether patients have CPSP . Patients with no postoperative chronic pain after open reduction and internal fixation of lower limb fractures.

Patients with chronic postsurgical pain

According to the 11th Revision of International Classification of Diseases (ICD-11) of International Association for the Study of Pain(IASP) in 2019, diagnose whether patients have CPSP . Patients with postsurgical chronic pain after open reduction and internal fixation of lower limb fractures.

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Patients who had undergone open reduction and internal fixation of the lower limbs and planned to take out the internal fixation were interviewed before surgery to collect the basic data ( gender, age, BMI, etc. ) and previous surgical information. Selecting the patients with the chronic postoperative pain,for one-to-one case matching.All patients and control subjects were without any analgesic medicatio during the 24hours before the investigation,and were not using any daily mediciation.Routine blood and urine assessments were within the normal range.

You may qualify if:

  • ASA physical status 1 to 3 (males and females)
  • Undergone open reduction and internal fixation of the lower limbs and plan to take out the internal fixation under spinal anesthesia

You may not qualify if:

  • Absence of written consent
  • Contraindication to regional anaesthesia
  • Known dementia at time of operation
  • History or opioid abuse
  • Unexpected conversion of general anesthesia or surgery is not carried out

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (10)

  • Scholz J, Finnerup NB, Attal N, Aziz Q, Baron R, Bennett MI, Benoliel R, Cohen M, Cruccu G, Davis KD, Evers S, First M, Giamberardino MA, Hansson P, Kaasa S, Korwisi B, Kosek E, Lavand'homme P, Nicholas M, Nurmikko T, Perrot S, Raja SN, Rice ASC, Rowbotham MC, Schug S, Simpson DM, Smith BH, Svensson P, Vlaeyen JWS, Wang SJ, Barke A, Rief W, Treede RD; Classification Committee of the Neuropathic Pain Special Interest Group (NeuPSIG). The IASP classification of chronic pain for ICD-11: chronic neuropathic pain. Pain. 2019 Jan;160(1):53-59. doi: 10.1097/j.pain.0000000000001365.

    PMID: 30586071BACKGROUND
  • van Ransbeeck A, Budilivski A, Spahn DR, Macrea L, Giuliani F, Maurer K. Pain Assessment Discrepancies: A Cross-Sectional Study Highlights the Amount of Underrated Pain. Pain Pract. 2018 Mar;18(3):360-367. doi: 10.1111/papr.12612. Epub 2017 Sep 20.

    PMID: 28707777BACKGROUND
  • GBD 2017 Disease and Injury Incidence and Prevalence Collaborators. Global, regional, and national incidence, prevalence, and years lived with disability for 354 diseases and injuries for 195 countries and territories, 1990-2017: a systematic analysis for the Global Burden of Disease Study 2017. Lancet. 2018 Nov 10;392(10159):1789-1858. doi: 10.1016/S0140-6736(18)32279-7. Epub 2018 Nov 8.

    PMID: 30496104BACKGROUND
  • Clay FJ, Watson WL, Newstead SV, McClure RJ. A systematic review of early prognostic factors for persisting pain following acute orthopedic trauma. Pain Res Manag. 2012 Jan-Feb;17(1):35-44. doi: 10.1155/2012/935194.

    PMID: 22518366BACKGROUND
  • Friesgaard KD, Gromov K, Knudsen LF, Brix M, Troelsen A, Nikolajsen L. Persistent pain is common 1 year after ankle and wrist fracture surgery: a register-based questionnaire study. Br J Anaesth. 2016 May;116(5):655-61. doi: 10.1093/bja/aew069.

    PMID: 27106969BACKGROUND
  • Leliveld MS, Van Lieshout EMM, Polinder S, Verhofstad MHJ; TRAVEL Study Investigators. Effect of Transverse Versus Longitudinal Incisions on Anterior Knee Pain After Tibial Nailing (TRAVEL): A Multicenter Randomized Trial with 1-Year Follow-up. J Bone Joint Surg Am. 2022 Dec 21;104(24):2160-2169. doi: 10.2106/JBJS.22.00389. Epub 2022 Oct 25.

    PMID: 36367768BACKGROUND
  • Rees S, Tutton E, Achten J, Bruce J, Costa ML. Patient experience of long-term recovery after open fracture of the lower limb: a qualitative study using interviews in a community setting. BMJ Open. 2019 Oct 9;9(10):e031261. doi: 10.1136/bmjopen-2019-031261.

    PMID: 31601595BACKGROUND
  • Fitzcharles MA, Cohen SP, Clauw DJ, Littlejohn G, Usui C, Hauser W. Nociplastic pain: towards an understanding of prevalent pain conditions. Lancet. 2021 May 29;397(10289):2098-2110. doi: 10.1016/S0140-6736(21)00392-5.

    PMID: 34062144BACKGROUND
  • Hankerd K, McDonough KE, Wang J, Tang SJ, Chung JM, La JH. Postinjury stimulation triggers a transition to nociplastic pain in mice. Pain. 2022 Mar 1;163(3):461-473. doi: 10.1097/j.pain.0000000000002366.

    PMID: 34285154BACKGROUND
  • Wyss-Coray T, Mucke L. Inflammation in neurodegenerative disease--a double-edged sword. Neuron. 2002 Aug 1;35(3):419-32. doi: 10.1016/s0896-6273(02)00794-8.

Biospecimen

Retention: SAMPLES WITH DNA

Patients undergoing hardware removal following open reduction internal fixation of lower limb fractures under spinal anesthesia will be enrolled in the study. The anesthesiologist retained cerebrospinal fluid during a subarachnoid puncture.

MeSH Terms

Conditions

Pain, Postoperative

Condition Hierarchy (Ancestors)

Postoperative ComplicationsPathologic ProcessesPathological Conditions, Signs and SymptomsPainNeurologic ManifestationsSigns and Symptoms

Central Study Contacts

Yang Zi D Zhu, Doctor

CONTACT

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 31, 2023

First Posted

November 13, 2023

Study Start

December 25, 2023

Primary Completion

July 30, 2025

Study Completion

July 30, 2025

Last Updated

November 13, 2023

Record last verified: 2023-06