Impact of Ninjin'Yoeito on Fatigue in Patients Receiving Nab-Paclitaxel Plus Gemcitabine Therapy: A Prospective, Single-Arm, Phase II Open Label, Nonrandomized, Historically-Controlled Study

Background Ninjin'yoeito , a traditional Japanese herbal medicine, is used to prevent fatigue, loss of appetite , and coldness of limbs. Fatigue is an especially common issue during chemotherapy and can affect quality of life and the ability to complete scheduled treatment. Objectives This prospective exploratory trial evaluates the efficacy of ninjin'yoeito for fatigue in patients undergoing nab-paclitaxel plus gemcitabine therapy for unresectable pancreatic cancer . The primary end point was evaluation of fatigue according to Functional Assessment of Chronic Illness Therapy-Fatigue score during 2 courses of nab-paclitaxel plus gemcitabine therapy. Secondary end points included evaluation of dose intensity, appetite loss using numerical rating scale , and peripheral neuropathy using a patient neurotoxicity questionnaire. Methods We compared data from this interventional trial with a prior observational trial without administration of ninjin'yoeito with identical definition of end points (UMIN000021758). Thirty patients were required by the study. Results Threshold mean of Functional Assessment of Chronic Illness Therapy-Fatigue score across 8 weeks during chemotherapy was under 5.3 ( P = 0.002). Secondary end points did not reveal any specific patterns in appetite loss or degree of pain. No significant changes in patient neurotoxicity questionnaire concerning sensory/motor disorders were observed, but the mean (SD) incidence of patients with sensory disturbance was higher between the fifth and eighth weeks (8.8 [1.26]) than during the first and fourth weeks (4.8 [0.96]) ( P = 0.003). Clinically significant adverse reactions of ninjin'yoeito were not observed. Conclusions Ninjin'yoeito may be useful for improving the symptoms of fatigue caused by nab-paclitaxel plus gemcitabine in patients with unresectable pancreatic cancer . UMIN Clinical Trials Registry identifier: UMIN000025606. ( Curr Ther Res Clin Exp . 2020; 81:XXX–XXX)

Abstract licence: CC BY-NC

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