TLDR it’s possible to get a license to do research with schedule I drugs, but the licensing hurdles are higher than those for prescribing even schedule II drugs (which in the US includes cocaine and methamphetamine). Those hurdles could be lowered in various ways, perhaps with reference to the general procedures for researching new drugs described here:
A lot of the heavy lifting in US law is being done here:
https://www.law.cornell.edu/uscode/text/21/823
TLDR it’s possible to get a license to do research with schedule I drugs, but the licensing hurdles are higher than those for prescribing even schedule II drugs (which in the US includes cocaine and methamphetamine). Those hurdles could be lowered in various ways, perhaps with reference to the general procedures for researching new drugs described here:
https://www.law.cornell.edu/uscode/text/21/355