Tagicakibau leaves Wasps
Tagicakibau has made 34 appearances for Wasps during his two seasons with the club.
He scored seven tries in 21 appearances during his first season, after joining from London Irish.
"I'd like to thank Losi for the significant contribution he made to the squad during his time with Wasps," Wasps Director of Rugby Dai Young said.
"While professional sport is important, family always comes first and I'm sure I speak on behalf of everyone at the club, and for our Wasps supporters, in wishing Losi and his family the very best."
The 33-year-old wing plays international rugby for Samoa and already boast with 21 caps.
Tagicakibau confirmed the news via his Twitter account.
"It's been a tough couple of months but would like to thank everyone for the support especially Dai and the Wasps family"