'You have given us the greatest gift': B.C. doctor thanked for life-saving cancer research

SomethingGoodis a series on CBC'sThe Early Editionthat tells stories to help restore your faith in humanity.

Medical professionals don't always get to hear from the people whose lives they have changed, but one Alberta mother finally had the chance to thank the Vancouver-based doctor whose research helped save the life of her young son.

Kayley Leeds's son, Ashton, was five when he was diagnosed with Stage 4 thyroid cancer in 2014.

This past week, Leedsspoke with Dr. Poul Sorensen of the B.C. Cancer Research Centre for the first time, when she phoned in to CBC'sThe Early Edition.

"You have given us the greatest gift," Leeds said to Sorensen, who was live in studio with host Stephen Quinn.

"Every new day that we get to spend together as a family, making more memories, it's because of you and your research."

Bleak prognosis

When Ashtonwas first diagnosed, the cancer had spread to hislymph nodes, chest and throughout his lungs.

"We were just shocked," said Kayley Leeds. "We couldn't believe it because he looked so good. There were no warning signs other than the lump in his neck."

After extensive surgery andradioactive iodinetreatments in Toronto, the cancer continued to spread and was no longer responding to treatment.

The prognosis was bleak, but in 2017 the Leeds received a phone call that eventually changed the course of Ashton's cancer.

A researcher from the Kids Cancer Sequencing (KiCS) program in Toronto phoned to tell them they were starting a genetic database for rare pediatric cancers.

A couple of months later, Ashton's doctor in Calgary called to say the Toronto researchers had identified his cancer it was a rare genomic fusion Sorenson had discovered at the B.C. Cancer Research Centre, and there was a drug trial for a new treatment.

Sorenson's workhelped create thefirst-of-its-kind treatment, whichwas recently approved by Health Canada.

He calls the drug, which wascreated by U.S.-based companyLoxo Oncology,"super effective."

Leeds says the drug's impact on her son was obvious.

"The transformation in him was incredible," Leeds said. "He's able to be a normal 10-year-old, running around with his friends."

A chance to say thanks

Leeds and her family were recently made aware of Sorensen's groundbreaking work, but they have never spoken to him directly.

The family's gratitude was not lost on Sorensen.

"Believe me, you've made me feel very good and it gives some credence to the idea of studying rare tumours in kids and what it means for the greater society and patientslike yourson," he said.

"There's something amazing when the work you do actually reaches back and helps patients ... that's so incredibly gratifying."

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