Abstract
Vaginal suppositories containing 9-deoxo-16,16-dimethyl-9-methylene prostaglandin E 2 were administered to 40 subjects in an attempt to induce an early abortion. All subjects were 49 days or less from their last menstrual period. Ten subjects (Group A) received the 75-mg suppository followed in 6 hours by a 30-mg suppository, ten subjects (Group B) received the 30-mg suppository followed in 2 hours by the 75-mg suppository and twenty subjects (Group C) received a 30-mg suppository followed in 3 hours by a second 30-mg suppository and in three more hours, at the discretion of the principal investigator, they could receive a third 30-mg suppository. Twentyseven subjects (68%) had a successful termination of their pregnancy using the multiple vaginal prostaglandin suppository regimens. Seven subjects from Group A, 6 subjects from Group B, and 14 subjects from Group C successfully aborted. One subject in Group B and one subject in Group C were lost to follow-up and the remaining 11 subjects (28%) failed to abort. Twenty-six subjects reported side effects which included nausea, emesis, diarrhea, and uterine cramping requiring analgesia. Thirty-four subjects experienced hyperpyrexia of 99.6 ° or greater and 12 subjects had their body temperature reach 101 ° or higher. The use of vaginal suppositories containing 9-deoxo-16,16-dimethyl-9-methylene prostaglandin E 2 did not significantly increase the overall abortifacient efficacy of this method from the 60% rate we previously observed with (15S)-15-methyl-prostaglandin F 2α methyl ester suppositories.
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