https://www.cysticfibrosis.ca/our-programs/advocacy/access-to-medicines/trikafta

Canadian research published in the Journal of Cystic Fibrosis demonstrates that access to Trikafta in 2021 would result in profound health benefits for Canadians living with cystic fibrosis. By 2030, Trikafta could reduce the number of people living with severe lung disease by 60% and reduce the number of deaths by 15%.

The findings show a significantly slower disease progression with an 18% increase in people with mild lung disease and 19% fewer hospitalizations or home intravenous antibiotics for pulmonary exacerbations. The estimated median age of survival for a child born with cystic fibrosis would increase by 9.2 years

[...]

On average, Trikafta use leads to a 14% increase in lung function over the untreated baseline. In clinical trials of the triple combination therapy, people with two copies of the F508del mutation had a 10% increase in lung function on average compared to treatment with Symdeko (that already provides a 4% increase over baseline), and people with a single copy of F508del had, on average, more than a 14% increase in lung function compared to treatment with the placebo.