Accenture PLC’s profit grew 22% for the fiscal first quarter amid strong top-line growth, though the consultancy lowered its guidance for the year on foreign-exchange challenges.

Shares, which have risen 19% this year, slipped 1.6% premarket to $122.10.

For the current fiscal year, Accenture now expects to earn $5.64 to $5.87 a share, reflecting...