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  • Title: [Clinical and endocrinological studies on anovulatory women treated with two-step administration of clomiphene citrate].
    Author: Yoshio T.
    Journal: Nihon Sanka Fujinka Gakkai Zasshi; 1985 Jun; 37(6):991-1000. PubMed ID: 3926917.
    Abstract:
    The two step clomiphene citrate (CL) administration therapy was performed in 89 patients with first grade amenorrhea during 1980 through 1983, and clinical data in 89 patients and daily serum hormone levels in 20 patients were investigated. Out of the 89 women, ovulation occurred in 71 (79.8%). As to the treatment cycles, ovulation occurred in 158 cycles (53.4%) out of the total 296 cycles. Pregnancy was achieved in 16 women, among whom 2 women ended in spontaneous abortion and one had a multiple pregnancy. (1) As for 9 women in whom ovulation was induced by this treatment, the serum level of LH in the follicular phase and that of estradiol in the late follicular phase and luteal phase were higher than those of women who had normal ovulatory cycles. (2) No significant differences were observed between the serum levels of FSH and progesterone of the 9 women and those of women with normal ovulatory cycles. (3) As for 11 women in whom ovulation was not induced by this treatment, a transient increase in serum levels of LH and estradiol were observed after the first step administration of CL. This change also appeared soon after completion of the second step administration of CL and became more significant as additional stepwise administration of CL was performed. In view of observations, it was concluded that CL two step administration is effective for anovulatory women who did not respond to one step use of CL. As previously reported, CL exerts its action on the central nervous system to promote ovulation, but it is also strongly suggested that CL has its direct action on the ovary too.
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