After working in Geneva, the family moved to Paris where de La Roche senior was physician to the Duke of Orléans, and later at the fr:Rue du Faubourg-Saint-Martin health centre.
[1][2][3] De La Roche studied at the Faculty of Medicine at the University of Paris where, in 1806, he completed his medical thesis on the effects of strong heat on animal husbandry.
Also in 1812, he read a paper at the Institut de France titled Dissertation on the effect that air temperature has on the phenomenon of respiration.
[4] As an original researcher, his name is attached (as de La Roche or Delaroche) to the plant genus Alepidea and a number of different marine species.
[17] De La Roche became infected with typhus bacteria and died in 1813, only just aged 32, during the same epidemic that his father also succumbed to.