• Worapaka Manosroi, Jiraporn Chirayucharoensak, Chatree Chai-Adisaksopha, and Phichayut Phinyo.
• Division of Endocrinology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
• Medicina (Kaunas). 2022 May 26; 58 (6).

AbstractBackground and Objectives: There is a lack of data regarding hormonal metabolic abnormalities resulting from the R-CHOP regimen (rituximab, cyclophosphamide, doxorubicin, vincristine, prednisolone), a commonly used chemotherapy in diffuse large B-cell lymphoma (DLBCL). This study aimed to determine the incidence of hormonal and metabolic changes after R-CHOP therapy. Methods and Methods: This prospective cohort study initially included 17 DLBCL patients. Hormonal tests, including gonadal function, thyroid function, and ACTH stimulation tests for cortisol and metabolic markers, were performed before the 1st and after the 5th cycle of R-CHOP. The paired t-test was used to evaluate the changes. Statistical significance was set at p < 0.05. Results: Out of 17 patients, two died before the last follow-up, and 15 completed the study. LH levels were significantly higher in males after the 5th cycle (p = 0.04), while no significant changes were observed in other hormonal levels. After the 5th cycle, the only trend toward statistical significance was observed with higher FSH in males, higher blood glucose, and cholesterol. After the 5th cycle of chemotherapy, seven patients had at least one hormonal dysfunction, three patients had alterations in their thyroid function tests. Three patients had adrenal insufficiency (AI), one of whom also had secondary hypothyroidism concomitant with hypogonadism and AI. Additionally, two males had hypogonadism, and impaired fasting glucose was observed in three patients. Conclusions: Hormonal and metabolic abnormalities can occur in DLBCL after the 5th R-CHOP cycle. A high level of awareness and careful observation is of value in detecting these abnormalities, as some can be lethal.

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