SEVERNA PARK, Md.--(BUSINESS WIRE)--iSonea Ltd. (ASX: ISN; OTCQX: ISOAY), an emerging medical technology company developing innovative monitoring systems and software for the management of asthma, announced that the Company’s American Depositary Receipts (“ADRs”) will commence trading today on the OTCQX® International marketplace in the United States. iSonea’s ADRs will be traded under the symbol ISOAY.