Dr Jake Shortt |
Researchers at Monash University have shown a novel
anti-lymphoma therapy is remarkably effective against one of the most
aggressive B-cell lymphomas.
Published in the prestigious journal Leukemia and led
by Peter MacCallum Cancer Centre’s Dr Gareth Gregory, the research is part of
an ongoing collaboration with Monash University’s School of Clinical Sciences(SCS).
According to Cancer
Council Australia, lymphomas
are the most common form of haematological or blood cancer in Australia, and
the sixth most common form of cancer overall.
The
incidence of lymphomas has more than doubled over the past 20 years and is
continuing to rise, for no known reason.
“Certain B-cell lymphomas carry a cancer causing gene called
‘Myc’, said research collaborator Dr Jake Shortt, co-senior author and Adjunct
Senior Lecturer, School of Clinical Sciences at Monash Health.
“These patients usually have a poor response to chemotherapy
and ultimately have a poor prognosis.”
The new treatment, a drug called dinaciclib, is a
type of epigenetic therapy that can alter the way a cancer cell reads its own
abnormal DNA.
“In the case of Myc-positive lymphoma, dinaciclib
effectively turns off genes that Myc is activating and then kills the cells,
including those resistant to conventional chemotherapy,” said Dr Shortt.
Dr Shortt and his colleagues have worked on this type of
lymphoma for more than seven years and have tested numerous novel and
conventional therapies.
“Dinaciclib is the most effective treatment we have
seen to date by a long way,” added Dr Shortt.
“We’ve even seen results in animal models that have led to some
cures — this is something we have never seen before.”
Interestingly, dinaciclib until recently was being
tested in Phase III trials for low-grade lymphoma, namely chronic lymphocytic
leukaemia (CLL). Although found to be an
active therapy against CLL, its clinical development was suspended due to
market competition.
“Dinaciclib has
not been tested in aggressive lymphoma in the clinic,” said Dr
Shortt.
“Thanks to these very promising results, Monash Haematology
is actively pursuing an investigator initiated Phase II clinical trial to test dinaciclib
in patients with aggressive lymphoma.”
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