The private firm is developing the vaccine in collaboration with Oxford University in the UK, with analysts considering it a leading project in the race to release a safe jab. However, just hours ago the firm announced its trials had been paused because a human test subject had suffered a reaction to the drug.
Mr Trump appeared to either ignore the news or be unaware of it altogether while delivering a speech at a rally in North Carolina.
The president said: “Under operation Warp Speed we’re producing a vaccine in record time. This is a vaccine that we’re going to have very soon – by the end of the year, but much sooner than that, perhaps.”
“We have upped it to a level that nobody even believes is possible – and totally safe.”
AstraZeneca has not provided any details into the illness it reported in one of its participants.
However, medical news site Statnews claims the volunteer in question is expected to recover.
AstraZeneca said its halt of the trials is “routine” while it investigates the illness caused.
The firm said in a statement: “In large trails illnesses will happen by chance but must be independently reviewed to check this carefully.
“We are working to expedite the review of the single event to minimise any potential impact on the trial timeline.”
The effect the pause may have on the development of a vaccine is not yet clear – other firms are involved in the race to develop one.
Elsewhere in the rally, Mr Trump also accused Joe Biden and Kamala Harris of having an “anti-vaccine rhetoric” and of spreading vaccine “conspiracy theories”.