** Shares of biotech firm iBio IBIO.O rise 7% to $2.25 premarket
** Co says Australian regulators have cleared first human study of its experimental obesity drug IBIO-600
** Drug targets obesity and aims to preserve muscle while people lose weight - IBIO
** Says IBIO-600 is designed to be used alongside GLP-1 weight-loss drugs, which can cause muscle loss
** Adds early-stage study will test safety and how the drug behaves in overweight and obese adults
** Says animal studies showed gains in lean muscle and reductions in fat; drug could be dosed just a few times a year
** As of last close, IBIO up ~9% YTD
(Reporting by Sahil Pandey in Bengaluru)
((Sahil.Pandey@thomsonreuters.com))