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Drama in the Netherlands
The clinical study in the Netherlands started in 2015 and recruited two-thirds of its participants. More than 90 women had received Viagra because their baby was at the end of the third trimester of pregnancy and was only 10 and percentile in size. The problem is that 17 of the babies had lung problems and 11 died. Researchers at the University of Amsterdam Medical Center told the Dutch media that Viagra could increase blood pressure in the lungs and that only three of the 90 babies in the control group, who received placebo, had lung problems. A dozen other babies died in each group from the effects of too little growth. The clinical trial was to last until 2020, with 175 women in each of the two groups. The chances of survival of babies born after this type of complications in utero [croissance déficiente] "is low and there is no other treatment", which justified this study, says Amsterdam UMC.
The study of Vancouver
Dutch researchers have warned counterparts at the University of British Columbia (UBC) who are doing a similar study. They have suspended their clinical trial, for which 21 patients have been treated with Viagra since the beginning of 2017. "The news from the Netherlands is of great concern to me, as well as my team and the many international research partners involved in our work. study, "Ken Lim, head of clinical trial at UBC, said in a statement. "I immediately notified the independent safety and data monitoring committee of our trial and the University of British Columbia ethics committee. In accordance with the recommendations of members of the monitoring committee, we suspended the clinical trial and the recruitment of patients. We contacted the only Canadian in treatment and recommended her to stop taking the drug or placebo. We will contact the 20 Canadian women who have already participated in the trial. We found no increase in health problems among our Canadian participants or their child.
The Other Montreal Study
Another perinatal study on Viagra is being conducted at the Montreal Children's Hospital, but has not been interrupted. "Our research project is very different, because sildenafil [Viagra] is given only after birth, for a short period of time, to babies with severe brain damage," researcher Pia Wintermark says. Our project continues because we have not seen any potential deaths or other complications related to the drug. The clinical trial of D Lim is "really different", according to D r Wintermark.
Disappointing results
Last December, researchers from University of Liverpool published in the review The Lancet a study showing that Viagra treatment did not improve the health of infants with intrauterine growth restriction, after the badysis of the 135 mothers, half of whom had taken Viagra during pregnancy. However, no increased risk was identified. Other clinical trials in Australia and New Zealand also had disappointing results. The doses used in these clinical trials are generally half that of men using Viagra to improve erection
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