Clinical trial NCT05523934: Retrospective Analysis of capsaïcin Patch in Complex Regional Pain Syndrome
Official title: Capsaïcin patch8% in Adult Complex Regional Pain Syndromes: a Retrospective Analysis
Study type: OBSERVATIONAL
Overall status: RECRUITING
Conditions: Complex Regional Pain Syndromes
Lead sponsor: Brugmann University Hospital
Sponsor class: OTHER
First posted: 2022-09-01
Enrollment: 50
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Observational model: COHORT
Time perspective: RETROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: All adult patients treated between 2012 and 2022 in the Pain Clinic of the CHU Brugmann for complex regional pain syndrome and who have been treated by a capsaïcin patch in addition to their normal treatment

Brief summary: Complex regional pain syndrome is a painful syndrome often secondary to a traumatic lesion. Treatment is difficult, of long duration with variable outcomes. Patch of capsaïcin has been proposed as adjuvant to a multimodal treatment. Capsaïcin may act by its effect on transient receptor potential vanilloid 1. Efficacity and outcome studies with this treatment are lacking.

The aim of this retrospective study is to evaluate pain intensity over time assessed by visual analog scale in patient with complex regional pain syndrome treated with capsaïcin patch in addition to their usual treatment.


Eligibility criteria: Inclusion Criteria:

* Adult patients with complex regional pain syndrome on maximum medical treatment
* Age ≥18 years
* Patients treated between 2012 and August 31, 2022 in the pain clinic of the CHU Brugmann

Exclusion Criteria:

- incomplete medical chart

Primary outcomes:
measure: Pain intensity
timeFrame: 3 month period
Secondary outcomes:
Other outcomes:
Locations:
city: Brussels
country: Belgium
facility: CHU Brugmann
Study officials:
affiliation: CHU Brugmann
name: Tatiana Besse, MD
role: STUDY_CHAIR
References:
citation: Baron R, Fields HL, Janig W, Kitt C, Levine JD. National Institutes of Health Workshop: reflex sympathetic dystrophy/complex regional pain syndromes--state-of-the-science. Anesth Analg. 2002 Dec;95(6):1812-6. doi: 10.1097/00000539-200212000-00064. No abstract available.
citation: Birklein F. Complex regional pain syndrome. J Neurol. 2005 Feb;252(2):131-8. doi: 10.1007/s00415-005-0737-8.
citation: Geertzen JH, Dijkstra PU, Groothoff JW, ten Duis HJ, Eisma WH. Reflex sympathetic dystrophy of the upper extremity--a 5.5-year follow-up. Part I. Impairments and perceived disability. Acta Orthop Scand Suppl. 1998 Apr;279:12-8.
citation: Finnerup NB, Attal N, Haroutounian S, McNicol E, Baron R, Dworkin RH, Gilron I, Haanpaa M, Hansson P, Jensen TS, Kamerman PR, Lund K, Moore A, Raja SN, Rice AS, Rowbotham M, Sena E, Siddall P, Smith BH, Wallace M. Pharmacotherapy for neuropathic pain in adults: a systematic review and meta-analysis. Lancet Neurol. 2015 Feb;14(2):162-73. doi: 10.1016/S1474-4422(14)70251-0. Epub 2015 Jan 7.
citation: Steyaert A, Lavand'homme P. Prevention and Treatment of Chronic Postsurgical Pain: A Narrative Review. Drugs. 2018 Mar;78(3):339-354. doi: 10.1007/s40265-018-0866-x.
citation: Arora V, Campbell JN, Chung MK. Fight fire with fire: Neurobiology of capsaicin-induced analgesia for chronic pain. Pharmacol Ther. 2021 Apr;220:107743. doi: 10.1016/j.pharmthera.2020.107743. Epub 2020 Nov 10.
citation: Simpson DM, Robinson-Papp J, Van J, Stoker M, Jacobs H, Snijder RJ, Schregardus DS, Long SK, Lambourg B, Katz N. Capsaicin 8% Patch in Painful Diabetic Peripheral Neuropathy: A Randomized, Double-Blind, Placebo-Controlled Study. J Pain. 2017 Jan;18(1):42-53. doi: 10.1016/j.jpain.2016.09.008. Epub 2016 Oct 13.
citation: Backonja M, Wallace MS, Blonsky ER, Cutler BJ, Malan P Jr, Rauck R, Tobias J; NGX-4010 C116 Study Group. NGX-4010, a high-concentration capsaicin patch, for the treatment of postherpetic neuralgia: a randomised, double-blind study. Lancet Neurol. 2008 Dec;7(12):1106-12. doi: 10.1016/S1474-4422(08)70228-X. Epub 2008 Oct 30.
citation: Simpson DM, Brown S, Tobias J; NGX-4010 C107 Study Group. Controlled trial of high-concentration capsaicin patch for treatment of painful HIV neuropathy. Neurology. 2008 Jun 10;70(24):2305-13. doi: 10.1212/01.wnl.0000314647.35825.9c.
citation: Babbar S, Marier JF, Mouksassi MS, Beliveau M, Vanhove GF, Chanda S, Bley K. Pharmacokinetic analysis of capsaicin after topical administration of a high-concentration capsaicin patch to patients with peripheral neuropathic pain. Ther Drug Monit. 2009 Aug;31(4):502-10. doi: 10.1097/FTD.0b013e3181a8b200.
citation: Simpson DM, Gazda S, Brown S, Webster LR, Lu SP, Tobias JK, Vanhove GF; NGX-4010 C118 Study Group. Long-term safety of NGX-4010, a high-concentration capsaicin patch, in patients with peripheral neuropathic pain. J Pain Symptom Manage. 2010 Jun;39(6):1053-64. doi: 10.1016/j.jpainsymman.2009.11.316.
citation: Frias B, Merighi A. Capsaicin, Nociception and Pain. Molecules. 2016 Jun 18;21(6):797. doi: 10.3390/molecules21060797.
citation: Basith S, Cui M, Hong S, Choi S. Harnessing the Therapeutic Potential of Capsaicin and Its Analogues in Pain and Other Diseases. Molecules. 2016 Jul 23;21(8):966. doi: 10.3390/molecules21080966.
citation: Caterina MJ, Leffler A, Malmberg AB, Martin WJ, Trafton J, Petersen-Zeitz KR, Koltzenburg M, Basbaum AI, Julius D. Impaired nociception and pain sensation in mice lacking the capsaicin receptor. Science. 2000 Apr 14;288(5464):306-13. doi: 10.1126/science.288.5464.306.
citation: Chen W, Chi YN, Kang XJ, Liu QY, Zhang HL, Li ZH, Zhao ZF, Yang Y, Su L, Cai J, Liao FF, Yi M, Wan Y, Liu FY. Accumulation of Cav3.2 T-type Calcium Channels in the Uninjured Sural Nerve Contributes to Neuropathic Pain in Rats with Spared Nerve Injury. Front Mol Neurosci. 2018 Feb 8;11:24. doi: 10.3389/fnmol.2018.00024. eCollection 2018.
citation: Jancso G, Santha P. The foundation of sensory pharmacology: Nicholas (Miklos) Jancso and the Szeged contribution. Temperature (Austin). 2015 May 26;2(2):152-7. doi: 10.1080/23328940.2015.1045683. eCollection 2015 Apr-Jun.
citation: Chung MK, Campbell JN. Use of Capsaicin to Treat Pain: Mechanistic and Therapeutic Considerations. Pharmaceuticals (Basel). 2016 Nov 1;9(4):66. doi: 10.3390/ph9040066.