British American Tobacco Plc unit Reynolds American Inc said on Friday it had filed for a review of its Vuse e-cigarettes by the US Food and Drug administration, giving it a lead over its main rival Juul Labs Inc.

The FDA has set a May 2020 deadline for e-cigarette makers to submit a formal application to keep their products on the market amid its efforts to curb the use of e-cigarette among teens.

Reynolds, whose Vuse e-cigarettes deliver nicotine via a cartridge-based vapor system, said it had provided the health regulator with over 150,000 pages of documentation, including information on the composition, design and manufacturing process associated with its product, as well as safety data.