A coffee morning and bake sale will take place on Sunday, March 3 in Graiguecullen Parish Centre after 11.30am mass for Shan Tynan.
Shan was diagnosed with a rare form of cancer at just 16-years-old.
After eight months of chemo with little success, her mother Leona started the mammoth task of raising €600,000 so Shan could take part in US clinical trials - a move that would save her young daughter's life.
Shan was in Texas for treatment for eighteen months and returned to Ireland last October having been declared cancer free.
The funds raised from the event on March 3 will go towards her continued treatment in Texas and there will be a raffle as well.
Organisers said: "All proceeds will go directly to Shan. If anyone would like to bake something for the coffee morning we will be in the Parish Centre before mass."
A mass was also held recently at Graiguecullen Parish Centre to again support Shan's ongoing travel and treatment expenses as locals come to the help of their neighbours.
This month Shan back to Texas for her review and the family "are hopeful we will only receive positive news".
In a post on Facebook, the family said: "Shauntelle will travel to Texas again on February 17 to March 1 and this event [the mass] along with another planned for April will help to meet her costs for her following trip later this summer.
"We will have details of an upcoming sky dive (possibly to happen in June) if anyone is interested in taking part or supporting an event please contact us on the page.
"Again thank you all for never giving up on Shan! It means so much."