Amantadine as a therapeutic option for neuropathic pain in dogs with degenerative lumbosacral stenosis

Abstract Background Degenerative lumbosacral stenosis is a multifactorial condition with no consensus on optimal therapeutic management. In mildly affected dogs, treatment often includes analgesics and non-steroidal anti-inflammatory drugs, which may be insufficient for effective pain control. This...

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Main Authors: Chiara Caterino, Giovanni Della Valle, Federica Aragosa, Stefano Cavalli, Francesco Lamagna, Gerardo Fatone
Format: Article
Language:English
Published: BMC 2025-07-01
Series:BMC Veterinary Research
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Online Access:https://doi.org/10.1186/s12917-025-04911-9
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author Chiara Caterino
Giovanni Della Valle
Federica Aragosa
Stefano Cavalli
Francesco Lamagna
Gerardo Fatone
author_facet Chiara Caterino
Giovanni Della Valle
Federica Aragosa
Stefano Cavalli
Francesco Lamagna
Gerardo Fatone
author_sort Chiara Caterino
collection DOAJ
description Abstract Background Degenerative lumbosacral stenosis is a multifactorial condition with no consensus on optimal therapeutic management. In mildly affected dogs, treatment often includes analgesics and non-steroidal anti-inflammatory drugs, which may be insufficient for effective pain control. This study aimed to evaluate the efficacy of amantadine in managing chronic neuropathic pain associated with this pathology in dogs, using ground reaction forces (GRFs) analysis, including Peak Vertical Force (PVF), Vertical Impulse (VI), and stance time (ST), and to evaluate whether the co-administration of amantadine improves the efficacy of meloxicam in patients who have shown a refractory response to meloxicam alone. Methods Client-owned dogs (≥ 12 months old, ≥ 20 kg) with a confirmed diagnosis of degenerative lumbosacral stenosis were enrolled in a randomized trial. Subjects were assigned to two treatment groups: Group A received meloxicam (0.2 mg/kg PO SID loading dose, followed by 0.1 mg/kg SID for 6 days) plus amantadine (3 mg/kg PO SID for 21 days); Group B received amantadine alone (3 mg/kg PO BID for 21 days). Gait analysis was performed using a force platform at baseline (T0), after 7 days (T1), and after 21 days (T2). Results Twenty dogs met the inclusion criteria and completed the study. At enrollment, the two groups (10 animals each) were homogeneous. After 21 days, both groups showed significant increases in PVF%BW (p < 0.0001) and VI%BW (p = 0.0064 in Group A; p = 0.0023 in Group B). For VI%BW, Group A demonstrated a significant improvement between T0 and T1 (p = 0.0120), and T0 and T2 (p = 0.0083), but not between T1 and T2 (p = 0.4040). Group B showed significant increases between T0 and T2 (p = 0.0012), and T1 and T2 (p = 0.0034), but not between T0 and T1 (p = 0.7788). Regarding PVF%BW, both groups exhibited significant differences across all time points, showing progressive improvement over time. Conclusion The results suggest that amantadine, either alone or in combination with meloxicam, improves GRFs in dogs with degenerative lumbosacral stenosis and, may be a valuable component of its multimodal therapy, though additional research is necessary to validate these findings.
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spelling doaj-art-d57460af23c04f85a0a11bce66be92ba2025-08-20T03:42:57ZengBMCBMC Veterinary Research1746-61482025-07-012111910.1186/s12917-025-04911-9Amantadine as a therapeutic option for neuropathic pain in dogs with degenerative lumbosacral stenosisChiara Caterino0Giovanni Della Valle1Federica Aragosa2Stefano Cavalli3Francesco Lamagna4Gerardo Fatone5Department of Veterinary Medicine and Animal Productions, University of Naples “Federico II”Department of Veterinary Medicine and Animal Productions, University of Naples “Federico II”Department of Veterinary Medicine and Animal Productions, University of Naples “Federico II”Department of Veterinary Medicine and Animal Productions, University of Naples “Federico II”Department of Veterinary Medicine and Animal Productions, University of Naples “Federico II”Department of Veterinary Medicine and Animal Productions, University of Naples “Federico II”Abstract Background Degenerative lumbosacral stenosis is a multifactorial condition with no consensus on optimal therapeutic management. In mildly affected dogs, treatment often includes analgesics and non-steroidal anti-inflammatory drugs, which may be insufficient for effective pain control. This study aimed to evaluate the efficacy of amantadine in managing chronic neuropathic pain associated with this pathology in dogs, using ground reaction forces (GRFs) analysis, including Peak Vertical Force (PVF), Vertical Impulse (VI), and stance time (ST), and to evaluate whether the co-administration of amantadine improves the efficacy of meloxicam in patients who have shown a refractory response to meloxicam alone. Methods Client-owned dogs (≥ 12 months old, ≥ 20 kg) with a confirmed diagnosis of degenerative lumbosacral stenosis were enrolled in a randomized trial. Subjects were assigned to two treatment groups: Group A received meloxicam (0.2 mg/kg PO SID loading dose, followed by 0.1 mg/kg SID for 6 days) plus amantadine (3 mg/kg PO SID for 21 days); Group B received amantadine alone (3 mg/kg PO BID for 21 days). Gait analysis was performed using a force platform at baseline (T0), after 7 days (T1), and after 21 days (T2). Results Twenty dogs met the inclusion criteria and completed the study. At enrollment, the two groups (10 animals each) were homogeneous. After 21 days, both groups showed significant increases in PVF%BW (p < 0.0001) and VI%BW (p = 0.0064 in Group A; p = 0.0023 in Group B). For VI%BW, Group A demonstrated a significant improvement between T0 and T1 (p = 0.0120), and T0 and T2 (p = 0.0083), but not between T1 and T2 (p = 0.4040). Group B showed significant increases between T0 and T2 (p = 0.0012), and T1 and T2 (p = 0.0034), but not between T0 and T1 (p = 0.7788). Regarding PVF%BW, both groups exhibited significant differences across all time points, showing progressive improvement over time. Conclusion The results suggest that amantadine, either alone or in combination with meloxicam, improves GRFs in dogs with degenerative lumbosacral stenosis and, may be a valuable component of its multimodal therapy, though additional research is necessary to validate these findings.https://doi.org/10.1186/s12917-025-04911-9Degenerative lumbosacral stenosisForce plate gait analysisCanineNMDANeuropathic pain
spellingShingle Chiara Caterino
Giovanni Della Valle
Federica Aragosa
Stefano Cavalli
Francesco Lamagna
Gerardo Fatone
Amantadine as a therapeutic option for neuropathic pain in dogs with degenerative lumbosacral stenosis
BMC Veterinary Research
Degenerative lumbosacral stenosis
Force plate gait analysis
Canine
NMDA
Neuropathic pain
title Amantadine as a therapeutic option for neuropathic pain in dogs with degenerative lumbosacral stenosis
title_full Amantadine as a therapeutic option for neuropathic pain in dogs with degenerative lumbosacral stenosis
title_fullStr Amantadine as a therapeutic option for neuropathic pain in dogs with degenerative lumbosacral stenosis
title_full_unstemmed Amantadine as a therapeutic option for neuropathic pain in dogs with degenerative lumbosacral stenosis
title_short Amantadine as a therapeutic option for neuropathic pain in dogs with degenerative lumbosacral stenosis
title_sort amantadine as a therapeutic option for neuropathic pain in dogs with degenerative lumbosacral stenosis
topic Degenerative lumbosacral stenosis
Force plate gait analysis
Canine
NMDA
Neuropathic pain
url https://doi.org/10.1186/s12917-025-04911-9
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