part of regulates regulation of mitotic spindle elongation mitotic spindle formation (spindle phase one) biological regulation regulation of mitotic spindle formation (spindle phase one) GO:0110159 Any process that modulates the frequency, rate or extent of the cell cycle process in which the distance is lengthened between poles of the mitotic spindle during mitotic prophase (spindle phase one). 2019-08-12T15:10:26Z biological_process kmv regulation of mitotic spindle assembly