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  • Title: Evaluation of a repeatable depot-bromocriptine preparation(Parlodel LAR) for the treatment of acromegaly.
    Author: Plöckinger U, Quabbe HJ.
    Journal: J Endocrinol Invest; 1991 Dec; 14(11):943-8. PubMed ID: 1806612.
    Abstract:
    The effectiveness and side effects of a newly developed, repeatable depot-bromocriptine preparation, (Parlodel LAR, depot-bromocriptine), were studied in 7 acromegalic patients. A dose of 100 mg was injected at intervals of 28 days for 4 months, followed by 200 mg for 2 months. GH profiles (14 h) and an oral glucose load (oGTT) were performed prior to each injection. Depot-bromocriptine suppressed the mean serum profile GH concentration to less than 50% of the pretreatment value in 3 out of 7 patients (responders). Normalization of GH secretion was not achieved. During oGTT the mean serum GH concentration declined to 73%, 19% and 56% of the pretreatment value in the three responders (while on depot-bromocriptine 200 mg). IGF-I was reduced to 84% and 65% with 200 mg depot-bromocriptine in 2 GH responders only. No tumour shrinkage was observed in 3 patients with a visible tumor mass in NMR tomography. Side effects consisted of pronounced orthostatic dysregulation, nausea and vomiting on the day of injection in 3/7 patients. These results are comparable to the reported effectiveness and side effects of oral bromocriptine therapy. Depot-bromocriptine may be useful in selected responsive patients, particularly when compliance during oral therapy is a problem.
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