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Acupuncture improves chemotherapy-induced neuropathy explored by neurophysiological and clinical outcomes - The randomized, controlled, cross-over ACUCIN trial.

Friedemann T, Kark E, Cao N, Klaßen M, Meyer-Hamme G, Greten JH, Rostock M, Buhlmann E, Zhao A, Schröder S.

Phytomedicine.

2022

104

154294.

10.1016/j.phymed.2022.154294.

35785559

http://www.ncbi.nlm.nih.gov/pubmed/35785559

Acupuncture Therapy* / methods
Acupuncture*
Antineoplastic Agents* / adverse effects
Cross-Over Studies
Humans
Pain / drug therapy
Peripheral Nervous System Diseases* / chemically induced
Peripheral Nervous System Diseases* / diagnosis
Peripheral Nervous System Diseases* / drug therapy

Acupuncture; CIPN; Chemotherapy induced neuropathy; Gait; Neuropathic pain; Randomised controlled trial

침; 화학 항암제 유발 말초 신경병증; 화학 요법 유발 신경병증; 보행; 신경병증 통증; 무작위배정 비교임상연구

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Background: Chemotherapy-induced peripheral neuropathy (CIPN) is recognized as the second commonest side effect after chemotherapy. Besides neurological deficits and pain, it is a potential reason for terminating chemotherapy. Effective curative treatments of neurodegeneration are lacking. Hitherto, no randomized controlled study used nerve conduction studies (NCS), the gold standard diagnostic tool for peripheral neuropathy, as the primary outcome parameter for evaluating acupuncture for CIPN, which can also measure structural changes.

Methods: The study was carried out at the HanseMerkur Center for TCM at the University Medical Center, Hamburg-Eppendorf. Sixty patients with CIPN were included in the study after physical examination, subjective evaluation and quantitative evaluation by NCS. Subsequently, the patients were randomly assigned to Group 1 (30 patients), which received, in the first period, needle acupuncture and to Group 2 (30 patients), which was assigned to the waiting list in the first period. Group 1 received a standard 10-week bilateral treatment of ST34 (Liangqiu), EX-LE12 (Qiduan) and EX-LE8 (Bafeng). After 14 weeks, both groups were re-evaluated. Using a cross-over design, the patients of Group 2 received the same treatment procedure as Group 1 in the first period. Patients of Group 1 were assigned to the waiting list for the second period. After 28 weeks both groups were re-evaluated. Wilcoxon test was used as a pre-test to rule out carryover effects and to test for differences between acupuncture and the waiting list. Group assignment was not exposed to the statistician and the neurologist.

Results: Sural sensory nerve amplitude, and sural nerve conduction velocity, were significantly improved (p < 0.01, effect size (f) 0.55 and 0.49) compared to measurements in the waiting period. Change of NCS of the tibial nerve did not significantly differ in group comparison. Patients reported subjective improvement during acupuncture treatment superior to the waiting period for burning pain, cramps, numbness, frequency of symptoms (all p < 0.01) and unsteadiness of gait (p < 0.05). On physical examination, blind walking, heel-to-toe walking, distal pallhypesthesia (both p < 0.01), and the neuropathy deficit score (p < 0.05) were significantly improved during acupuncture treatment compared to the waiting period.

Conclusion: Acupuncture can enhance structural regeneration in CIPN as measured by NCS, which is manifested in subjective improvement and neurological findings.

Copyright © 2022 The Authors. Published by Elsevier GmbH.. All rights reserved.

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