(Reuters) - Canada's stock market regulatorsaid on Tuesday it will amend or cancel trades in the shares oftiny pharmaceutical company Immunovaccine Inc afterthey surged on Friday following a hoax.

The stock jumped more than 30 percent to 89 Canadian centsafter an unauthorized statement said Immunovaccine had entered apartnership with a much larger company.

The Investment Industry Regulatory Organization of Canada(IIROC) said it would amend the traded price to 73 cents a shareor cancel the 136 trades executed between the time the stockfirst moved on the false news last Friday and when it was haltedlater in the day.

The changes will take place before settlement of the tradeson Wednesday, IIROC said in a statement posted on its website.Those involved in the trades have been informed, and IIROCremains in touch with other regulators about the hoax. (Reporting by Alastair Sharp; Editing by Peter Galloway)