Ketamine's Efficiency in the Treatment of Chronic Pain: Kynurenin Pathway

Status Recruiting

Clinical Trial Summary

Clinical Trial Description

The kynurenine pathway is involved in hyperalgesia. This pathway is activated by inflammation. Ketamine would interact with the kynurenine pathway and inflammation. Our working hypotheses are: the clinical effects of ketamine on neuropathic pain are greater in the presence of systemic inflammation and the mechanism of action involves an interaction on the kynurenine pathway.

Study design: Interventional randomized placebo-controlled clinical trial.

Main goals:

1. To show a better clinical efficacy of ketamine in chronic pain in patients with an inflammatory component.

2. Explore the anti-inflammatory activity of ketamine through the Kynurenine pathway.

Population Adult, medullary injured (BM), with chronic neuropathic pain (DN). 4 groups: BM with DN with bedsore Ketamine Group versus Placebo Group BM with DN without bedsore group Ketamine versus Placebo Group

Intervention Ketamine infusion 1 mg / kg IVSE over two hours versus Nacl perfusion 0.9%

Primary judgment criterion Decrease by more than 30% the intensity of neuropathic pain evaluated at the moment on a numerical scale of 10 points between H0 and H4. Comparison of groups two by two.

Secondary judgment criterions:

NPSI score (Neuropathic pain symptom inventory) at H1, H4, D1, D4, J7 Sub score of NPSI; H1, H4, J1, J4, J7 Depression Scale HADS (Hospital Anxiety Depression Scale) J0, J1, J7 Plasma serotonin (5-HT) kynurenine (KYN), indoleamine 2,3-dioxygenase 1 (IDO1) activity (KYN / TRP ratio), kynurenic acid ( KA) and quinolinic acid (QA), as well as 3 proinflammatory cytokines IL-1β, IL-6, and TNF-α before perfusion and H4 perfusion.

In parallel blood samples will be collected to study the activation of the kynurenine pathway in response to inflammation due to a pressure ulcer. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT03513822
Study type	Interventional
Source	Redar
Contact	Cyril QUEMENEUR, Resident
Phone	0033681193981
Email	c.quemeneur@gmx.com
Status	Recruiting
Phase	Phase 3
Start date	February 16, 2018
Completion date	November 2018

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Ketamine's Efficiency in the Treatment of Chronic Pain: Kynurenin Pathway — KEKU1

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms