An Olympic Stakeholder meeting is due to take place on June 21 in order to "coordinate and harmonise" anti-doping approaches before Rio 2016, it was decided at the International Olympic Committee (IOC) Executive Board meeting here today.

The IOC also revealed it is extending its re-testing programme of doping samples submitted at Beijing 2008 and London 2012 to include all medal winners.

This expands on the targeted re-analysis of athletes due to compete at Rio 2016 completed last month.

An IOC budget for its pre-Olympic testing programme has also doubled to $500,000 (£346,000/€447,000).

It will be combined with separate contributions by both International Federations and National Olympic Committees.

A "special focus" will be put on countries where the testing programme is non-compliant - Kenya, Russia and Mexico - as well as upon those sports which the World Anti-Doping Agency (WADA) has declared most affected.

The meeting, expected to take place here in this Swiss city, will "coordinate and harmonise the approach among IFs, which take the first decision of the eligibility of athletes with respect to qualification for and participation in the Olympic Games".

It will also have to address the "difficult decision between collective responsibility and individual justice".

The meeting is due to take place just four days after the International Association of Athletics Federations (IAAF) Council meeting in Vienna at which a verdict will be made as to whether to lift a suspension of the All-Russia Athletic Federation in time for athletes from that country to complete at Rio 2016.

Athletics is likely to be among the sports which come under the IOC's "special focus", along with the likes of boxing following discussion today by the Executive Board on the reported lack of out-of-competition testing in the sport in 2014 and 2015.

A detailed agenda of the Stakeholders meeting is yet to be drawn-up.

One possible item could be a process to draw up more uniform punishments for NOCs and IFs deemed non-compliant by WADA.

At present, WADA has no power to do anything other than recommend further action.

An Olympic Summit is also scheduled to be held in October, the IOC announced today, in order to "evaluate and review the entire doping programme and measures being taken for the Olympic Games Rio 2016".

The IOC will continue to push for all testing independent from sports organisations and to harmonise national and international testing under the leadership of a new entity, expected to be under the umbrella of WADA.

This should be fully in place and operational in time for the 2018 Winter Games in Pyeongchang.

More discussions on doping are expected to take place when the Executive Board meeting continues tomorrow.

A progress report on preparations for Rio 2016 is another leading item on the agenda.