Page last updated: 2024-10-29

ketamine and Polyneuropathies

ketamine has been researched along with Polyneuropathies in 1 studies

Ketamine: A cyclohexanone derivative used for induction of anesthesia. Its mechanism of action is not well understood, but ketamine can block NMDA receptors (RECEPTORS, N-METHYL-D-ASPARTATE) and may interact with sigma receptors.
ketamine : A member of the class of cyclohexanones in which one of the hydrogens at position 2 is substituted by a 2-chlorophenyl group, while the other is substituted by a methylamino group.

Polyneuropathies: Diseases of multiple peripheral nerves simultaneously. Polyneuropathies usually are characterized by symmetrical, bilateral distal motor and sensory impairment with a graded increase in severity distally. The pathological processes affecting peripheral nerves include degeneration of the axon, myelin or both. The various forms of polyneuropathy are categorized by the type of nerve affected (e.g., sensory, motor, or autonomic), by the distribution of nerve injury (e.g., distal vs. proximal), by nerve component primarily affected (e.g., demyelinating vs. axonal), by etiology, or by pattern of inheritance.

Research Excerpts

ExcerptRelevanceReference
"A double-blind, randomized, placebo-controlled 3-week study evaluated the efficacy of topical 2% amitriptyline, 1% ketamine, and a combination of both in treating patients with neuropathic pain."9.11Topical 2% amitriptyline and 1% ketamine in neuropathic pain syndromes: a randomized, double-blind, placebo-controlled trial. ( Clark, AJ; Lynch, ME; Sawynok, J; Sullivan, MJ, 2005)
"A double-blind, randomized, placebo-controlled 3-week study evaluated the efficacy of topical 2% amitriptyline, 1% ketamine, and a combination of both in treating patients with neuropathic pain."5.11Topical 2% amitriptyline and 1% ketamine in neuropathic pain syndromes: a randomized, double-blind, placebo-controlled trial. ( Clark, AJ; Lynch, ME; Sawynok, J; Sullivan, MJ, 2005)

Research

Studies (1)

TimeframeStudies, this research(%)All Research%
pre-19900 (0.00)18.7374
1990's0 (0.00)18.2507
2000's1 (100.00)29.6817
2010's0 (0.00)24.3611
2020's0 (0.00)2.80

Authors

AuthorsStudies
Lynch, ME1
Clark, AJ1
Sawynok, J1
Sullivan, MJ1

Clinical Trials (2)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
Antipruritic Effect of Topical Ketamine, Amitriptyline, and Lidocaine[NCT03096444]Phase 213 participants (Actual)Interventional2017-05-23Terminated (stopped due to Efficacy was not seen after interim analysis)
Plasma Concentrations of Ketamine and Norketamine in Patients Using Topical Application of 10% Ketamine for Neuropathic Pain.[NCT01385904]15 participants (Anticipated)Observational2011-06-30Recruiting
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trial Outcomes

Peak Itch Intensity Between the Vehicle and Active Treatments (Individual and KeAmLi-combo).

"Peak itch intensity between the vehicle and 4 other active treatments (individual ketamine, amitriptyline, or lidocaine, and KeAmLi-combo). Itch intensity was measured on a 100mm scale visual analog scale for 10 minutes. 0 was weighted with no itch and 100 was weighted with most itch imaginable." (NCT03096444)
Timeframe: 10 minutes

InterventionIntensity score (Mean)
Topical KeAmLi Combo62.7
Topical Ketamine63.1
Topical Amitriptyline69.2
Topical Lidocaine65.8
Topical Vehicle61.9

Mechanical Thresholds (Mechanical Detection and Pain).

Assess mechanical detection and pain thresholds using von Frey filaments stimulators (measured in force mN) to calculate the final threshold as the geometric mean of five series of ascending and descending stimuli. (NCT03096444)
Timeframe: 5 minutes

,,,,
InterventionmN (Mean)
Mechanical Detection ThresholdMechanical Pain Threshold
Topical Amitriptyline3.573423965152.4768146
Topical KeAmLi Combo3.519376956152.3293608
Topical Ketamine3.464204768135.9
Topical Lidocaine3.546037659126.9
Topical Vehicle3.525692637148.7138273

Thermal Threshold Detection (Warmth and Heat Pain)

Two standardized quantitative sensory tests are performed to measure warmth detection threshold (assesses the threshold of which warmth sensation is first detected) and heat pain threshold (assesses the threshold at which heat pain sensation is first detected). Measured in change in celsius. (NCT03096444)
Timeframe: 3 minutes

,,,,
InterventionDegrees celsius (Mean)
Warm Detection ThresholdHeat Pain Threshold
Topical Amitriptyline33.940.0
Topical KeAmLi Combo33.639.8
Topical Ketamine34.040.0
Topical Lidocaine33.739.4
Topical Vehicle33.839.7

Trials

1 trial available for ketamine and Polyneuropathies

ArticleYear
Topical 2% amitriptyline and 1% ketamine in neuropathic pain syndromes: a randomized, double-blind, placebo-controlled trial.
    Anesthesiology, 2005, Volume: 103, Issue:1

    Topics: Administration, Topical; Adult; Aged; Aged, 80 and over; Amitriptyline; Double-Blind Method; Drug Th

2005
Topical 2% amitriptyline and 1% ketamine in neuropathic pain syndromes: a randomized, double-blind, placebo-controlled trial.
    Anesthesiology, 2005, Volume: 103, Issue:1

    Topics: Administration, Topical; Adult; Aged; Aged, 80 and over; Amitriptyline; Double-Blind Method; Drug Th

2005
Topical 2% amitriptyline and 1% ketamine in neuropathic pain syndromes: a randomized, double-blind, placebo-controlled trial.
    Anesthesiology, 2005, Volume: 103, Issue:1

    Topics: Administration, Topical; Adult; Aged; Aged, 80 and over; Amitriptyline; Double-Blind Method; Drug Th

2005
Topical 2% amitriptyline and 1% ketamine in neuropathic pain syndromes: a randomized, double-blind, placebo-controlled trial.
    Anesthesiology, 2005, Volume: 103, Issue:1

    Topics: Administration, Topical; Adult; Aged; Aged, 80 and over; Amitriptyline; Double-Blind Method; Drug Th

2005