SYDNEY, July 10 -- Australian doctors are hoping a possible new cancer drug to treat an aggressive form of leukemia in children will be a success.

There are few treatments for children diagnosed with a relapsing type of leukaemia, a blood cancer, known as T-Cell acute lymphoblastic leukaemia (T-ALL).

A study from the Children's Cancer Institute in Sydney has involved testing the new drug on mice injected with cancer cells from children with T-ALL.

The drug is called PR-1042, and so far had been very successful in lab tests, but the next stage in its development would be getting a clinical trial approved, the Australian Broadcasting Corporation reported on Friday.