** Shares of drug developer Reata Pharmaceuticals Inc
RETA.O rise 2.6% to $37.4
** Guggenheim initiates coverage with 'buy' rating, and PT
of $75
** We believe RETA's experimental drug, omaveloxolone, to
treat patients with Friedreich's Ataxia has a high chance, about
80%, of FDA's approval - brokerage
** If the drug is approved, we estimate ~$1.4 bln in global
peak sales - Guggenheim
** Friedreich's Ataxia is a genetic condition that causes
progressive nervous system damage and movement problems
** Including session's gain, stock up ~41% YTD
(Reporting by Khushi Mandowara)
((Khushi.Mandowara@thomsonreuters.com;))