They started with 1045 volunteers and only 100 finished the study, not what I'd call a startling success. Since it's based on testosterone there are a wide variety of common side effects which being pessimistic is possibly why so many failed to finish the study. Much more work is needed but indeed a solution should be found.
I believe this is untrue. A BBC article states 'Despite the injection having no serious side effects, almost a third of the 1,045 men in the two-and-a-half year trial did not complete it and no reason was given for this...' which means perhaps 300 men dropped out. If you're referring to the '1 in 100' statistic they quote, that's been scaled down to give easier visualisation.
Oops, sorry my concentration is not what is was and I missed that bit - I should refrain from commenting on stuff these days that requires close reading.
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Since it's based on testosterone there are a wide variety of common side effects which being pessimistic is possibly why so many failed to finish the study.
Much more work is needed but indeed a solution should be found.
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