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  • Title: CV 205-502 treatment of hyperprolactinemia.
    Author: Vance ML, Cragun JR, Reimnitz C, Chang RJ, Rashef E, Blackwell RE, Miller MM, Molitch ME.
    Journal: J Clin Endocrinol Metab; 1989 Feb; 68(2):336-9. PubMed ID: 2521863.
    Abstract:
    CV 205-502 is a nonergot oral dopamine agonist with specific D2 activity, which has a prolonged suppressive effect on serum PRL and may have fewer side-effects than other dopamine agonists. We treated 26 hyperprolactinemic women with this compound given as a single bedtime (hs) dose for up to 12 weeks. All had gonadal dysfunction, either amenorrhea or oligomenorrhea, and 15 had galactorrhea. The initial and subsequent doses were administered in a randomized fashion; the initial dose ranged from 0.01-0.05 mg, and the dose at 12 weeks ranged from 0.03-0.09 mg. The women were evaluated every 2 weeks, and the dose was increased by 0.02 mg every 4 weeks if the serum PRL level was greater than 20 micrograms/L. Of the 26 women initially enrolled, 24 completed 12 weeks of therapy, and 2 discontinued therapy because of side-effects. Thirteen women (54%) had return of menses, and 12 (80%) had either a decrease in or disappearance of galactorrhea. Serum PRL concentrations decreased to a variable degree in all patients; 13 (54%) achieved a normal serum PRL level (less than or equal to 20 micrograms/L). The mean (+/- SE) pretreatment serum PRL concentration was 129 +/- 34, and it was 29.9 +/- 5.9 micrograms/L after 12 weeks of treatment (P = 0.005). The mean (+/- SE) percent reduction in serum PRL was 66.5 +/- 5.0% (median, 78.0%). A dose response was not demonstrated (r = -0.08; P = 0.70) among the 6 dose groups during the last 4 weeks of therapy. In 5 women, serum PRL levels, measured frequently for 24 h after treatment remained low. Side-effects after the initiation of therapy included nausea, headache, and morning fatigue in 10 women. These symptoms caused 2 women to discontinue therapy; they subsided in the other women. An optimal dose was not determined and will probably need to be determined by titration in each patient. CV 205-502, given once daily, appears to be a safe and effective alternative to other dopamine agonists in the treatment of hyperprolactinemia.
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