Prolactinoma Clinical Trial
Official title:
The Effect of Combined Treatment of Cabergoline With Hydroxychloroquine/Chloroquine for Resistant Prolactinomas
The purpose of this study is to preliminarily evaluate the safety and efficacy of cabergoline combined hydroxychloroquine/chloroquine(HCQ/CQ) therapy for cabergoline-Resistant Prolactinomas
The dopamine agonist cabergoline (CAB) has been used widely in the treatment of prolactinomas, but its clinical use is hampered by intolerance and/or resistant in some patients with prolactinoma. Chloroquine (CQ) is an old drug widely used to treat malaria. Recent studies, including our own (J Clin Endocrinol Metab, 2017; Autophagy, 2017; Oncotarget, 2015), have revealed that CAB and CQ are involved in induction of autophagy and activation of autophagic cell death. Furthermore, CQ enhanced suppression of cell proliferation by CAB. We established a low-CAB-dose condition in which CAB was able to induce autophagy but failed to suppress cell growth. Addition of CQ to low-dose CAB blocked normal autophagic cycles and induced apoptosis, evidenced by the further accumulation of p62/caspase-8/LC3-II. The data suggest that combined use of CAB and CQ may increase clinical effectiveness in treatment of intolerance and/or resistant prolactinomas. ;
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