Abstract
Paclitaxel-induced peripheral neuropathy (PN) is a significant clinical concern for which no approved treatment is currently available. The purpose of this trial was to investigate the neuro-prophylactic impact of pentoxifylline against paclitaxel-induced PN in patients diagnosed with breast cancer (BC). BC patients who were assigned to paclitaxel chemotherapy were randomly allocated to pentoxifylline or a control group for 12 weeks. The main outcomes included the assessment of PN incidence according to the defined Common Terminology Criteria for Adverse Events, quality of life (QoL) using the Functional Assessment of Cancer Therapy/Gynecologic Oncology Group-Neurotoxicity (FACT/GOG-NTx) scale, and neuropathic pain using the scale of self-reported Leeds Assessment for Neuropathic Symptoms and Signs (s-LANSS). The code of the clinical trial registration is NCT06562998. The current study included a total of 72 patients allocated into pentoxifylline arm (n = 35) and placebo arm (n = 37). By the 12th week, the prevalence of PN (grade 2 or 3) was significantly lower in the pentoxifylline arm 10/35 (28.6%) compared to 24/37 (64.9%) of the controls (P value = 0.016). The total FACT/GOG-NTx score indicated a considerably worse QoL in the control group [98.18 (10.2) vs. 81.43 (14.8) for pentoxifylline and the control group, respectively, P < 0.001] with a mean difference of -16.75 [95% confidence interval (CI): -23.97 to -9.53]. S-LANSS scale showed significantly higher scores after 6 weeks [13.72 (5.86) vs. 17.52 (3.16), P = 0.002] and 12 weeks [17.84 (4.25) vs. 23.80 (1.00), P < 0.001] for pentoxifylline and control group, respectively. In conclusion, the use of pentoxifylline showed a significant reduction in paclitaxel-induced PN, which improved their QoL.
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