A panel investigating Russian doping in track and field is unlikely to finish its work in time for Russian athletes to compete under the country’s flag at the world championships, which begin in less than two weeks in Qatar, according to a person familiar with the situation.

The person was not authorized to speak publicly, but another championships without the Russian flag or anthem would be the latest embarrassment for the international sports power as it tries to regain its prominence after revelations in 2015 of a widespread, state-sponsored, performance-enhancing drug program.

The special panel of the International Association of Athletics Federations that has been dealing with the yearslong fallout from the unmasking of Russia’s institutional doping program will meet days before the start of the world championships later this month. The panel, which could still change its mind, has rejected Russia’s efforts to regain full status for its track and field federation 11 times.

If plans hold for a 12th rejection, then, for the second time in three years, Russian athletes at the world championships will be allowed to participate only under the cumbersome banner “Authorized Neutral Athlete,” a special designation for what are expected to be dozens of individuals cleared by the I.A.A.F. As in 2017, they would compete without their nation’s flag and would not hear Russia’s anthem should they win a gold medal.