Berlin CNN  — 

Pfizer and BioNTech are confident they can have a vaccine against the novel coronavirus ready for regulatory approval by the middle of October or early November, BioNTech CEO and co-founder Ugur Sahin told CNN Tuesday.

“It has an excellent profile and I consider this vaccine … near perfect, and which has a near perfect profile,” Sahin said in an exclusive interview with CNN.

US drug giant Pfizer and German firm BioNTech say they plan to provide 100 million doses of their vaccine candidate, BNT162, by the end of the year, and up to 1.3 billion doses in 2021.

In July, the US Department of Health and Human Services and Department of Defense announced a $1.95 billion agreement with Pfizer to produce 100 million doses of a Covid-19 vaccine. The deal also allows the US government to acquire an additional 500 million doses.

Sahin told CNN he believes that approval for emergency use will be granted quickly by regulatory authorities, adding that the company’s “understanding of the mode of action, in combination with the safety data coming in from the running trial” meant that they have “a lot of confidence” in it.

“Yes, we believe that we have a safe product and we believe that we will be able to show efficacy,” he said.

Sahin claims antibody responses in both young adults and the elderly have proven to be strong so far, with minimal side-effects.

“We don’t see frequent fever. So only a minor proportion of participants in this trial have fever,” Sahin said. “We see also much lower symptoms like headache or like feeling tired. And the symptoms that are observed with such vaccines are temporary, they are usually observed for one or two days and then are gone.”

But while BioNTech and Pfizer say approval could happen by mid-October, federal officials have told CNN they believe this is an optimistic timeline.

“I don’t know any scientist involved in this effort who thinks we will be getting shots into arms any time before Election Day,” an official who is familiar with Operation Warp Speed, the federal government’s effort to develop coronavirus vaccines, previously told CNN.