Preventive effect of kampo medicine (hangeshashin-to, TJ-14) plus minocycline against afatinib-induced diarrhea and skin rash in patients with non-small cell lung cancer.

Preventive effect of kampo medicine (hangeshashin-to, TJ-14) plus minocycline against afatinib-induced diarrhea and skin rash in patients with non-small cell lung cancer.

Onco Targets Ther. 2017;10:5107-5113

Authors: Ichiki M, Wataya H, Yamada K, Tsuruta N, Takeoka H, Okayama Y, Sasaki J, Hoshino T

Abstract
Purpose: Diarrhea and oral mucositis induced by afatinib can cause devastating quality of life issues for patients undergoing afatinib treatment. Several studies have shown that hangeshashin-to (TJ-14) might be useful for chemotherapy-induced diarrhea and oral mucositis. In this study, we investigated the prophylactic effects of TJ-14 for afatinib-induced diarrhea and oral mucositis and minocycline for afatinib-induced skin rash.
Patients and methods: First- and second-generation epidermal growth factor receptor (EGFR)-tyrosine kinase inhibitors have become the standard first-line treatment in patients with EGFR-mutated non-small cell lung cancer. The incidence of diarrhea was higher with afatinib than with gefitinib, and we conducted a single-arm Phase II study with afatinib. Patients who had previously undergone treatment with afatinib were ineligible. Both TJ-14 (7.5 g/day) and minocycline (100 mg/day) were administered simultaneously from the start of afatinib administration. The primary end point was the incidence of ≥ grade 3 (G3) diarrhea (increase of ≥7 stools/day over baseline) during the first 4 weeks of treatment. The secondary end points were the incidence of ≥ G3 oral mucositis (severe pain interfering with oral intake) and $ G3 skin toxicity (severe or medically significant but not immediately life-threatening).
Results: A total of 29 patients (nine men and 20 women; median age, 66 years; performance status, 0/1/2: 18/10/1) were enrolled from four centers. Four patients had undergone prior treatment with chemotherapy, including gefitinib or erlotinib. In all, 20 (68.9%) patients and one (3.4%) patient had diarrhea of any grade and ≥ G3, respectively. One (3.4%) patient had ≥ G3 oral mucositis; no patients had ≥ G3 skin rash. A total of 18 (62%) of the 29 patients achieved a partial response.
Conclusion: The present study indicated a trend in which TJ-14 reduced the risk of afatinib-induced diarrhea and minocycline reduced the risk of afatinib-induced skin rash.

PMID: 29123409 [PubMed]

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