But producing and supplying billions of doses remain major concerns as the fast-spreading respiratory illness overwhelms healthcare systems around the world.
"We will continue to collaborate globally to ensure sufficient worldwide supply," Gilead Chief Executive Officer Daniel O'Day said in a statement. (https://bit.ly/3eqpEJ9)
Two major Indian drugmakers - Hetero Labs and Cipla Ltd - on Sunday gained approval to begin selling their generic versions of remdesivir in the country. Another Indian drugmaker Glenmark expects the treatment to be priced at 5,000 to 6,000 rupees ($66-$79) for a 100 milligram dose.
Remdesivir has not been priced yet in the United States.
Gilead's expectations of two million courses suggests sales of between $2 billion and $3 billion between 2020 and 2021 at a price of $1,000 to $2,000 per course, according to Jefferies analyst Michael Yee.
Gilead had previously said it expected to produce one million courses of remdesivir by 2020.
The company also announced plans for a "next wave of clinical trials", including studies in pregnant women.
Gilead said an inhaled formulation of the drug would be given through a nebulizer, which could potentially allow for easier use outside hospitals.