Jones (far right) initially lied about her steroid use
Seven US runners have won an appeal to keep their 2000 Olympic relay medals that were taken away after Marion Jones was banned for doping.
Jones, who admitted to using banned substances, helped the US women win gold in the 4x400m relay and bronze in the 4x100m at the Sydney Games.
A motion against the stripping of their medals was rejected by the Court of Arbitration for Sport in December.
But Cas chose to overturn that decision in a ruling on Friday.
The International Olympic Committee stripped all the relay medals in 2008 and Cas upheld the IOC's right to decide on them.
In Sydney, Jearl Miles-Clark, Monique Hennagan, LaTasha, Colander Clark and Andrea Anderson were part of the squad that won gold in the 4x400 relay.
Chryste Gaines, Torri Edwards, Nanceen Perry and Passion Richardson were in the 4x100 bronze medal squad. All but Perry joined the appeal.
IOC president Jacques Rogge said: "I think the international federations and also the IOC must tighten their rules to avoid this happening again.
"We respect the judgement but we are going to study the consequences to see how we can improve our action."
Jones was stripped of her five medals, including gold in the 100m and 200m and bronze in the long jump, in 2007.
The court said on Friday that athletics rules in 2000 did not allow teams to be affected by one member's doping.