Guud ahaan, horumarinta wax soo saarka noolaha cusub waa in la maraa (1) cilmi shaybaar (sahaminta ee habka wax soo saarka iyo samaynta heerarka ilaalinta tayada) (2) Daraasadaha preclinical (farmakooloji, toxicological, pharmacodynamic iyo tijaabooyinka kale ee xoolaha) (3) Cunto caafimaad waa in ay gudbaan tijaabada badbaadada alaabta la tijaabiyay ( 4) Daawooyinka waxay u baahan yihiin inay maraan shan marxaladood oo shaqo cilmi baaris ah, sida marxaladda I tijaabada bukaan-socodka (tijaabinta badbaadada daawooyinka ee tabaruceyaasha caafimaadka qaba), wajiga II tijaabada bukaan-socodka Cilmi-baarista Pharmacodynamics), iyo marxaladda III tijaabada bukaan-socodka (Cilmi-baadhista Farmacodynamics Clinical-ka-weyn), ka hor inta aan loo oggolaan wax-soo-saarka tijaabada ah. Hal sano oo tijaabo ah ka dib, daawadu waa in ay soo sheegtaa natiijooyinka xasilloonida tayada iyo tijaabooyinka bukaan-socodka ee la ballaariyay ka hor inta aan la codsan ogolaanshaha wax soo saarka rasmiga ah.