Muri rusange, iterambere ryibicuruzwa bishya byibinyabuzima bigomba kunyura (1) ubushakashatsi bwa laboratoire (gushakisha inzira yumusaruro no gushyiraho ibipimo ngenderwaho bigenzura ubuziranenge) (2) Ubushakashatsi bwibanze (farumasi, uburozi, imiti ya farumasi nubundi bushakashatsi bwinyamaswa) (3) Ibiryo byubuzima igomba gutsinda ikizamini cyumutekano cyibicuruzwa byapimwe (4) Ibiyobyabwenge bigomba kunyura mubyiciro bitanu byubushakashatsi, nkicyiciro cya mbere cyamavuriro (gupima umutekano wibiyobyabwenge hamwe nabakorerabushake bazima), icyiciro cya kabiri cyamavuriro (Clinical-small Clinical) Ubushakashatsi bwa Pharmacodynamics), nicyiciro cya III cyamavuriro (Ubushakashatsi bunini bwa Clinical Pharmacodynamics Research), mbere yuko bwemezwa kubyara umusaruro. Nyuma yumwaka umwe wibizamini, imiti igomba kwerekana ibyavuye mu ihame ry’ubuziranenge no kurushaho kwagura ibizamini by’amavuriro mbere yo gusaba kwemererwa umusaruro.