Elya Martinson, a single mother of three in Kelowna, B.C., learned she had Stage 4 lung cancer, a diagnosis made all the more devastating that the COVID-19 crisis forced her children to stay home from school to shield her from the severe risks of infection. (Memorable and Vibrant Okanagan Photography)

Elya Martinson, a single mother of three in Kelowna, B.C., learned she had Stage 4 lung cancer, a diagnosis made all the more devastating that the COVID-19 crisis forced her children to stay home from school to shield her from the severe risks of infection. (Memorable and Vibrant Okanagan Photography)

2nd vaccine dose delays leave Kelowna woman, many B.C. cancer patients unprotected

This week, patients and advocates mounted a national campaign to prioritize people with cancer by adhering to the vaccine manufacturer’s schedule

Elya Martinson has two important milestones approaching: the anniversary of her cancer diagnosis on Friday, and on Tuesday, the day she’d be fully immunized against COVID-19 — if her second vaccine dose is not delayed four months.

The single mother of three in Kelowna, B.C., received her first shot of the Pfizer-BioNTech vaccine on April 14 and says she was told at the time she would have to wait until August before booking again, despite having stage 4 lung cancer.

Pfizer recommends a 21-day interval between shots of its two-dose vaccine, and like several provinces, British Columbia does not offer medical exemptions for higher risk cancer patients like Martinson.

This week, patients and advocates mounted a national campaign to prioritize people with cancer by adhering to the manufacturer’s schedule. In the case of Pfizer, that’s a three-week delay, while Moderna dictates a four-week gap between doses, and Oxford-AstraZeneca recommends waiting between four to 12 weeks for a second shot.

Medical experts say emerging research suggests many cancer patients have a reduced immune response to the vaccine, so a single COVID-19 shot may leave them insufficiently protected.

“We’re not asking for special treatment. We’re just asking for equality,” says Martinson, 37. “In order for us to get the same efficacy as everyone else with one vaccine, unfortunately, we do need two vaccines.”

There are patients like her in many parts of the country, say, advocates, who are calling for a national policy to exempt people with cancer from extended dose delays.

Earlier this month, the National Advisory Committee on Immunization affirmed its recommendation that a second dose be delayed as long as four months in order to offer more people the first dose faster.

NACI left it to provinces and territories to decide if exemptions should be made for high-risk groups.

Some provinces, such as Ontario and Alberta, chose to prioritize some people with weakened immune systems, including certain cancer patients. But elsewhere, including British Columbia and Quebec, the four-month interval applies across the board.

The president of the Canadian Association of Pharmacy in Oncology says the patchwork of policies leaves many patients in the lurch. Even in jurisdictions that permit earlier doses for cancer patients, confusion reigns, says Tina Crosbie.

“If we have something on a national level, then that will help for that trickle-down effect to be able to implement it and roll it out in the various health units,” Crosbie says.

Dr. Keith Stewart, director of the Princess Margaret Cancer Centre in Toronto, says people with cancer often have weakened immune systems, both because of the disease itself and the treatments for it.

Blood cancers, in particular, often impair the immune system. Solid tumours, such as those in colon cancer or lung cancer, are often treated with therapies that destroy cancer cells, but can also damage the healthy cells involved in the body’s immune response.

COVID-19 vaccines trigger the body’s immune response to produce antibodies that help fight off infection. But in cancer patients, that response will be diminished, says Stewart.

“Not enough cancer patients respond to the first dose to be comfortable leaving them without the second,” he says. “Even with the second dose, protection will be suboptimal. But any protection is better than none.”

Researchers in London published a paper in the Lancet this week suggesting a single dose of the Pfizer vaccine leaves many cancer patients partially or mostly unprotected, based on data collected from 151 cancer patients and 54 healthy controls.

Three weeks after receiving one shot of Pfizer, the study found an immune response in 38 per cent of people with solid cancer and 18 per cent of patients with blood cancer. That’s compared to 94 per cent of those without cancer.

However, immunity response improved in patients with solid cancer who received a boost 21 days after their first shot.

A Health Canada spokesman says there’s little data on the issue because cancer patients were excluded from clinical trials.

And early data suggesting a reduced immune response in some cancer patients do not necessarily indicate the level of real-world protection they’d have against COVID-19, Eric Morrissette said Wednesday in an email.

NACI will continue to monitor the evidence about the effectiveness of vaccines in high-risk groups and adjust its recommendations if needed, he added.

On Wednesday, a coalition of cancer advocacy groups published an open letter in the Globe and Mail calling on all levels of government to ensure Canadians with cancer aren’t put at risk because of a delayed dose.

The executive director of Myeloma Canada, which was one of more than a dozen signatories of the letter, says anxiety over second doses has prompted some cancer patients to delay treatments that may impact the effectiveness of the vaccine.

“Because of COVID, many cancer patients have had their diagnosis or treatment delayed, which is a very stressful experience,” Martine Elias says.

“Now, we are creating even more uncertainty for them by delaying their second vaccination dose.”

Like us on Facebook and follow us on Twitter.

Want to support local journalism? Make a donation here.

Coronavirus

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

Stock photo.
Grand Forks drug trafficker to be sentenced in Castlegar

Ryan Plotnikoff pleaded guilty to trafficking meth, following his November 2020 arrest by Grand Forks RCMP

Stuart Ashley Jones, 56, was at Grand Forks provincial court for sentencing on May 5, 2021. Photo: Laurie Tritschler
Grand Forks man shot by police during peak freshet sentenced to house arrest

Stuart Ashley Jones was shot by a Grand Forks Mountie after ramming two police cruisers in May 2018

Accused drug trafficker to plead to federal, provincial charges in June

Matthew Straume said he’d missed his last court date because he was ill

Photo: Laurie Tritschler
Grand Forks sex crimes trial adjourned until summer

The trial was set to begin at the city courthouse Wednesday, May 5

Photo: Kathleen Saylors
Grand Forks city council votes down motion to support Penticton in paramountcy battle

Coun. Neil Krog insisted Penticton’s issue with Victoria is about city bylaws, not homelessness

Thursday, Feb. 4: RDKB Chief Engineer Darryl Funk hoists a banner commemorating last year’s championship season by the Bantam House Bruins. Photo: Laurie Tritschler
Bantam Bruins honoured at hair-raising banner ceremony at Grand Forks’ Jack Goddard Arena

Asst. coach Mike Tollis said he reluctantly gave in to the team’s victory wish that he cut his pony tale

Junior A team Coquitlam Express is offering all Tri-City residents who get vaccinated against COVID-19 a free ticket to one of their games. (Facebook/Coquitlam Express)
B.C. hockey team offering free tickets to hometown fans who get the COVID-19 vaccine

‘We know the only way to get fans back is people getting vaccinated,’ says Express’ general manager Tali Campbell

Jobs Minister Ravi Kahlon speaks in the B.C. legislature, describing work underway to make a small business and tourism aid package less restrictive, Dec. 10, 2020. (Hansard TV)
B.C.’s latest COVID-19 restrictions cost thousands of service jobs

Part-time workers set back again by spike in virus spread

Cannabis bought in British Columbia (Ashley Wadhwani/Black Press Media)
Is it time to start thinking about greener ways to package cannabis?

Packaging suppliers are still figuring eco-friendly and affordable packaging options that fit the mandates of Cannabis Regulations

A sign indicating face coverings are required by the establishment is pictured on the front door of a business in Vancouver, B.C., Friday, April 9, 2021. COVID-19 cases have been on a steady increase in the province of British Columbia over the past week. THE CANADIAN PRESS/Jonathan Hayward
A sign indicating face coverings are required by the establishment is pictured on the front door of a business in Vancouver, B.C., Friday, April 9, 2021. COVID-19 cases have been on a steady increase in the province of British Columbia over the past week. THE CANADIAN PRESS/Jonathan Hayward
Leaked report shows detailed B.C. COVID-19 data not being released to public

Documents obtained by the Vancouver Sun show cases broken down by neighbourhoods

Abbotsford school board trustee Phil Anderson has stepped down after sharing an offensive image on Facebook. (File photo)
Abbotsford trustee temporarily steps down after sharing post relating COVID masks to slavery

Phil Anderson to receive training to better understand provincial mask mandate after posting picture

B.C. announced the launch of an app May 7 that connects youth struggling with mental health and substance use with “life-saving” social services. (Screen grab)
5 years in the making: Mental health app for youth and children launches in B.C.

The province provided $1.6-million to fund a virtual care platform

Amazon has announced the creation of five new facilities in B.C., to employ about 2,000 people. (Amazon/Special to Black Press Media)
Amazon adds new facilities in Langley, Pitt Meadows, Delta, Vancouver

The Vancouver port centre will be the first Amazon centre to feature robotics in B.C.

Mahitha Mohan is working in Nelson as a community support worker at Community Connections Support Services. Photo: Bill Metcalfe
Immigration pilot targets hard-to-fill jobs in West Kootenay

Program helps newcomers get permanent residency status in rural areas

Most Read