This is one of the reasons why people in Australian were explicitly concerned by the now dead Trans-Pacific Partnership.
http://www.abc.net.au/news/2015-11-05/trans-pacific-partners...
http://www.abc.net.au/news/2015-11-05/trans-pacific-partners...
See also the outcome of Phillip Morris v Uruguay
The TPP would drastically increase the number of nations with reciprocal ISDS agreements. In particular it would have included the US, where many/most of the the tobacco companies are domiciled.
Why the TPP would probably have not included retrospectivity, it could have frustrated any future efforts.