Given the task definition and input, reply with output. Generate an explanation for the given claim using the provided supporting material from the paragraph. Please consider the following points while generating an output. 1) The claim will always have supporting proof in the paragraph, and the paragraph will have a clear point of view supporting the claim. 2) There can be instances where direct correlation to the claim is not available. Make use of the sentences in the paragraph to provide a corresponding output supporting the claim. 3) The explanation should be at least one and at most twelve sentences long.

Paragraph: The company's shares rose about 3 percent to $1.97 in premarket trading on Thursday. Cell Therapeutics said it received the notification from the regulator on December 26. The FDA placed the hold after a patient treated with a combination of the drug, tosedostat, and a chemotherapy drug died of a heart muscle infection. Under the hold, the company could not enroll new patients in any trials of tosedostat. The regulator asked for more information on all heart-related events in patients treated with the drug. Tosedostat is being tested in mid-stage trials in the United States and European Union on elderly patients with two forms of blood cancer - acute myeloid leukemia and myelodysplastic syndrome. Claim: FDA lifts hold on studies testing Cell Therapeutics' cancer drug.
Cell Therapeutics Inc said the U.S. Food and Drug Administration lifted a hold imposed in June last year on studies testing the company's blood cancer drug.