A vial with Johnson & Johnson’s one-dose COVID-19 vaccine. (AP Photo/Mary Altaffer)

A vial with Johnson & Johnson’s one-dose COVID-19 vaccine. (AP Photo/Mary Altaffer)

Johnson & Johnson testing COVID-19 vaccine on teens in Canada and U.S.

The study is testing the safety and efficacy of both one-dose and two-dose regimens of the vaccine

Johnson & Johnson has started testing its COVID-19 vaccine on adolescents, beginning with those ages 16 and 17.

The teens will be added to an ongoing study of the vaccine in adults that began last September, the New Brunswick, New Jersey-based drugmaker said Friday.

After initial data from the older teens is reviewed, the trial will expand to add adolescents ages 12 to 15.

J&J says the first teens are being enrolled in the United Kingdom and Spain. Teens in the United States, Canada and the Netherlands will be added, followed by teens in Brazil and Argentina.

The study is testing the safety and efficacy of both one-dose and two-dose regimens of the vaccine, with the two-dose regimens being studied at intervals of one, two and three months after the first shot.

Dr. Mathai Mammen, global head of research and development for the company’s Janssen pharmaceuticals unit, says it also expects to initiate studies in pregnant women and children.

A total of 100 million J&J doses are pledged for the U.S. by late May or June.

Coronavirusvaccines

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

Just Posted

A vial of some of the first 500,000 of the two million AstraZeneca COVID-19 vaccine doses that Canada has secured through a deal with the Serum Institute of India in partnership with Verity Pharma at a facility in Milton, Ont., on Wednesday, March 3, 2021. THE CANADIAN PRESS/Carlos Osorio - POOL
Alberta begins rolling out AstraZeneca COVID vaccine for those aged 40 or older

There are more than 70 pharmacies offering AstraZeneca, including 26 offering walk-in appointments

A child writes in their school notebook during a home schooling session in Cremona, Alta., Monday, March 23, 2020, amid the worldwide COVID-19 pandemic. Thousands of students in Calgary will shift to online learning as of today in a bid to curb rising COVID-19 infection rates in the city. THE CANADIAN PRESS/Jeff McIntosh
Online classes begin for some Alberta students amid rising COVID-19 cases

Alberta currently has the highest rate of active COVID-19 cases in the country

A vial of some of the first 500,000 of the two million AstraZeneca COVID-19 vaccine doses that Canada secured. THE CANADIAN PRESS/Carlos Osorio
Alberta joins Ontario in lowering minimum age for AstraZeneca vaccine

More than 700,000 doses of AstraZeneca have been administered in this country

Asymptomatic testing will now be available for "priority groups" who are most likely to spread the COVID-19 virus to vulnerable or at-risk populations. File photo by THE CANADIAN PRESS
Alberta identifies 1,516 new COVID-19 cases on Sunday

Central zone has 1,849 active cases

In this image from NASA, NASA’s experimental Mars helicopter Ingenuity lands on the surface of Mars Monday, April 19, 2021. The little 4-pound helicopter rose from the dusty red surface into the thin Martian air Monday, achieving the first powered, controlled flight on another planet. (NASA via AP)
VIDEO: NASA’s Mars helicopter takes flight, 1st for another planet

The $85 million helicopter demo was considered high risk, yet high reward

The Rogers logo is photographed in Toronto on Monday, September 30, 2019. THE CANADIAN PRESS/Tijana Martin
Rogers investigating after wireless customers complain of widespread outage

According to Down Detector, problems are being reported in most major Canadian cities

People are shown at a COVID-19 vaccination site in Montreal, Sunday, April 18, 2021, as the COVID-19 pandemic continues in Canada and around the world. THE CANADIAN PRESS/Graham Hughes
Nothing stopping provinces from offering AstraZeneca vaccine to all adults: Hajdu

Health Canada has licensed the AstraZeneca shot for use in people over the age of 18

Deputy Prime Minister and Minister of Finance Chrystia Freeland responds to a question during Question Period in the House of Commons Tuesday December 8, 2020 in Ottawa. The stage is set for arguably the most important federal budget in recent memory, as the Liberal government prepares to unveil its plan for Canada’s post-pandemic recovery even as a third wave of COVID-19 rages across the country. THE CANADIAN PRESS/Adrian Wyld
Election reticence expected to temper political battle over federal budget

Opposition parties have laid out their own demands in the weeks leading up to the budget

Each spring, the Okanagan Fest-of-Ale is held in Penticton. This year, as a result of the COVID-19 pandemic, the festival will not be held. However, beer is still available. How much do you know about this beverage? (pxfuel.com)
QUIZ: How much do you really know about beer?

Put your knowledge to the test with this short quiz

Pall Bearers carrying the coffin of the Duke of Edinburgh, followed by the Prince of Wales, left and Princess Anne, right, into St George’s Chapel for his funeral, at Windsor Castle, in Windsor, England, Saturday April 17, 2021. (Danny Lawson/Pool via AP)
Trudeau announces $200K donation to Duke of Edinburgh award as Prince Philip laid to rest

A tribute to the late prince’s ‘remarkable life and his selfless service,’ the Prime Minister said Saturday

A vial of some of the first 500,000 AstraZeneca COVID-19 vaccine doses that Canada secured. THE CANADIAN PRESS/Carlos Osorio
Canada’s 2nd blood clot confirmed in Alberta after AstraZeneca vaccine

The male patient, who is in his 60s, is said to be recovering

The funeral of Britain’s Prince Philip in Windsor, England, on Saturday, April 17, 2021. Philip died April 9 at the age of 99. (Kirsty Wigglesworth/AP)
PHOTOS: Prince Philip laid to rest Saturday as sombre queen sits alone

The entire royal procession and funeral took place out of public view within the grounds of Windsor Castle

Most Read