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<p>Chronic neuropathic pain is characterized by complex pathophysiology, and its treatment is associated with significant healthcare costs and resources. Controlling pain intensity remains challenging, necessitating alternative therapeutic approaches. Lacosamide and pregabalin have shown efficacy in neuropathic pain management, but comparative studies, particularly in the Indian population, are limited. A prospective, open-label, randomized controlled, parallel-arm pilot study was conducted on patients of either gender &gt; 18&#xa0;years of age with definite or probable neuropathic pain lasting beyond three months. Of 72 screened patients, 36 were randomized to receive either lacosamide (50&#xa0;mg BD P/O for 1&#xa0;week, then 100&#xa0;mg BD P/O for 3&#xa0;months) or pregabalin (75&#xa0;mg OD P/O for 3&#xa0;months). Analgesic efficacy was assessed using the Numeric Rating Scale (NRS), and quality of life was evaluated with the SF-36 Questionnaire. Adverse drug reactions (ADRs) were assessed using the Naranjo Algorithm. SPSS software version 16.0 was used for statistical analysis, with p-values &lt; 0.05 considered significant. Of 72 screened patients, 36 were randomized, and 7 dropped out, leaving 15 in the pregabalin group and 14 in the lacosamide group. The mean age was 52&#xa0;years, and the mean BMI was 24&#xa0;kg/m<sup>2</sup>. Lacosamide significantly reduced pain (NRS: 7.7 to 2.50) compared to pregabalin (7.6 to 4.27) (p &lt; 0.001), indicating greater effectiveness. Both drugs improved all SF-36 quality of life domains (p &lt; 0.001), with no significant difference between groups in overall quality of life. Lacosamide therapy was more costly due to its twice-daily dosing. No serious ADRs were observed. Lacosamide is more effective than pregabalin in reducing chronic neuropathic pain and contributes to improved quality of life, comparable to pregabalin. Despite higher costs, lacosamide is safe and recommended for adults aged ≥ 18&#xa0;years. Limitations include the open-label design, small sample size, lack of placebo control, and absence of neuropathic pain phenotype analysis, necessitating larger, double-blind trials to confirm findings.</p>

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A comparison of the effectiveness of lacosamide and pregabalin in treating patients diagnosed with neuropathic pain: a randomized, controlled, open-label pilot trial

  • 期刊论文

  • 发表日期：

    2025年7月21日

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  • R. Kalpana,
  • W. S. Robert,
  • Fatema Juzerehaji,
  • Ramesh Venkatachalapathy,
  • M. Jagadeesan

摘要

Chronic neuropathic pain is characterized by complex pathophysiology, and its treatment is associated with significant healthcare costs and resources. Controlling pain intensity remains challenging, necessitating alternative therapeutic approaches. Lacosamide and pregabalin have shown efficacy in neuropathic pain management, but comparative studies, particularly in the Indian population, are limited. A prospective, open-label, randomized controlled, parallel-arm pilot study was conducted on patients of either gender > 18 years of age with definite or probable neuropathic pain lasting beyond three months. Of 72 screened patients, 36 were randomized to receive either lacosamide (50 mg BD P/O for 1 week, then 100 mg BD P/O for 3 months) or pregabalin (75 mg OD P/O for 3 months). Analgesic efficacy was assessed using the Numeric Rating Scale (NRS), and quality of life was evaluated with the SF-36 Questionnaire. Adverse drug reactions (ADRs) were assessed using the Naranjo Algorithm. SPSS software version 16.0 was used for statistical analysis, with p-values < 0.05 considered significant. Of 72 screened patients, 36 were randomized, and 7 dropped out, leaving 15 in the pregabalin group and 14 in the lacosamide group. The mean age was 52 years, and the mean BMI was 24 kg/m2. Lacosamide significantly reduced pain (NRS: 7.7 to 2.50) compared to pregabalin (7.6 to 4.27) (p < 0.001), indicating greater effectiveness. Both drugs improved all SF-36 quality of life domains (p < 0.001), with no significant difference between groups in overall quality of life. Lacosamide therapy was more costly due to its twice-daily dosing. No serious ADRs were observed. Lacosamide is more effective than pregabalin in reducing chronic neuropathic pain and contributes to improved quality of life, comparable to pregabalin. Despite higher costs, lacosamide is safe and recommended for adults aged ≥ 18 years. Limitations include the open-label design, small sample size, lack of placebo control, and absence of neuropathic pain phenotype analysis, necessitating larger, double-blind trials to confirm findings.