Updates share movement, adds analyst comments in paragraph 7, executive comment in paragraph 11, graphics

By Kamal Choudhury

April 20 (Reuters) - Shares of psychedelic drug developers rose on Monday after U.S. President Donald Trump signed an executive order directing health regulators to speed up reviews of psychedelic treatments and increased federal funding for their research.

Shares of AtaiBeckley ATAI.O jumped 28% in morning trading, while Compass Pathways CMPS.O climbed 37%, Enveric BioSciences ENVB.O surged 140% and GH Research GHRS.O rose 24%. Definium Therapeutics DFTX.O gained 4% while U.S.‑listed shares of Cybin HELP.NLB, HELP.O were up about 5%.

The executive order, issued on Saturday, requires the U.S. Food and Drug Administration to fast-track reviews of psychedelic compounds such as ibogaine, which is being studied to treat mental health conditions including post-traumatic stress disorder, depression and addiction.

The order directs the agency to give Commissioner's National Priority Vouchers to psychedelic drugs that have the "breakthrough therapy" tag, potentially cutting the review time to one to two months from the usual six to 10 months.

Trump also said the government would allocate $50 million for federal research into ibogaine.

Executives across the psychedelics industry welcomed the decision, saying clearer federal support could help accelerate research and responsible clinical use.

Oppenheimer analysts called the development "a structural inflection for the U.S. psychedelics sector," while Jefferies analyst Andrew Tsai called it the administration's "official stamp of validation to the class (of drugs)."

FDA Commissioner Marty Makary on Saturday said decisions on the drugs could come as soon as this summer.

Ibogaine is derived from a shrub native to Africa and is classified as a Schedule I substance in the U.S., meaning it is considered to have no accepted medical use.

According to RBC analyst Brian Abrahams, the signing of the executive order is "a substantial step towards diminishing regulatory risk in this emerging class of therapies, enabling investor comfort."

Tom Feegel, CEO of Beond, an ibogaine-focused treatment provider, said the Trump administration's move marks "a historic inflection point" that puts the psychedelic on the national agenda and "not as a fringe concept."

Health Secretary Robert F. Kennedy Jr. has championed using ibogaine as an alternative treatment for mental health conditions such as depression.

Lawmakers from both Republican and Democratic parties have also said they would pursue legislation to expand access to psychedelic therapies.