YM BioSciences initiates Non-Small-Cell Cancer trial
March 24 2006 - 2:00AM
UK Regulatory
YM BioSciences initiates Non-Small-Cell Lung Cancer trial with
nimotuzumab
- First patient treated in Canada with trial to expand to Korea -
MISSISSAUGA, ON, March 23 /CNW/ - YM BioSciences Inc. (AMEX:YMI, TSX:YM,
AIM:YMBA), the cancer product development company, today announced that the
first patient has been enrolled in its multi-center Phase I/II Non-Small-Cell
Lung Cancer (NSCLC) trial utilizing YM's anti-EGFr monoclonal antibody,
nimotuzumab (TheraCIM). The randomized Phase II part of the trial will compare
the effects of the combination of nimotuzumab with radiation against radiation
alone in patients with Stage IIB and III disease who are found to be
insufficiently fit to tolerate the standard-of-care or who are not amenable to
treatment with curative intent.
"Together with our European development partner, Oncoscience AG, our
Southeast Asian partner, Innogene Kalbiotech Pte. Ltd., and our partner in
Korea, Kuhnil Pharmaceutical Co., we have expanded the clinical development
program for nimotuzumab to include trials in children and adults with brain
cancer, advanced metastatic pancreatic cancer and now NSCLC. In addition, the
licensor has trials ongoing for nimotuzumab in glioma, breast, esophageal and
prostate cancer," said David Allan, Chairman and CEO of YM. "We expect to
complete recruitment for the NSCLC trial in approximately 20 months."
The Phase I portion of the NSCLC trial will be an open-label dose
escalation study in which increasing doses of nimotuzumab will be studied in
combination with palliative radiation in patients with Stage IIB and III
disease who are unable to receive standard chemoradiation treatment with
curative intent. Separate dose escalation studies will be conducted in Canada
by YM and in Korea by YM's partner Kuhnil Pharmaceutical Co. The primary
objectives of the Phase I studies are to determine the optimal dose, any dose
limiting toxicity (DLT), safety profile and observe any evidence of antitumour
activity of nimotuzumab when used in combination with radiation. The enrolment
in this study is expected to be up to 30 evaluable patients and will depend
upon the number of dose levels tested.
The Phase II portion of the trial is expected to enroll approximately 120
patients in total who will be randomized to receive either palliative
radiation therapy or nimotuzumab in combination with palliative radiation
therapy. The primary clinical endpoints for the Phase II study will be local
tumor control and survival.
Nimotuzumab is being developed in a number of indications and is in the
class of EGF-targeting drugs which have repeatedly demonstrated their ability
to enhance the effect of radiation. A randomized trial with nimotuzumab that
included 130 patients suffering from nasopharyngeal cancer was completed in
China and demonstrated the substantial benefit of nimotuzumab when added to
standard radiation therapy, resulting in the drug being approved for sale in
that country. Nimotuzumab has shown clinical benefit as a monotherapy as well;
a Phase II monotherapy trial of nimotuzumab produced evidence of efficacy and
a strong indication of survival benefit in children with recurrent brain
cancer. Nimotuzumab is unique because it has not produced the emotionally and
physically debilitating side effects of rash or severe diahhrea suffered by
patients treated with the other drugs in this class. Phase III IND
applications have been filed in Europe for the drug.
Nimotuzumab is licensed to YM's subsidiary CIMYM Inc. by CIMAB S.A., a
corporation representing the Center of Molecular Immunology in Havana. CIMYM's
licenses are for the major market countries including Europe, North America
and the Pacific Rim countries excluding China. CIMAB has separate licenses in
India with Biocon Biopharmaceuticals Limited and the Peoples' Republic of
China with Biotech Pharmaceuticals Limited.
Lung cancer is the leading cause of cancer-related mortality in both men
and women. The prevalence of lung cancer is second only to that of prostate
cancer in men and breast cancer in women. (NSCLC) accounts for approximately
75% of all lung cancers. The standard of care for the treatment of NSCLC is
radical therapy utilizing the chemotherapy cisplatin in combination with high
dose radiation. Dr. Mark Vincent, staff oncologist at the London Regional
Cancer Centre, estimates that the combined population of patients unfit for
chemotherapy or unwilling to undergo the treatment because of the often
intolerable side effects of chemotherapies may approximate 20% of patients
diagnosed with an advanced form of this cancer. In addition, virtually all
patients with NSCLC will eventually become refractory to chemotherapy and be
treated with radiation as palliative care.
About YM BioSciences
YM BioSciences Inc. is a cancer product development company. Its lead
drug, tesmilifene, is a small molecule chemopotentiator currently undergoing a
700-patient pivotal Phase III trial in metastatic and recurrent breast cancer.
Published results from tesmilifene's first Phase III trial in the same
indication demonstrated a substantial increase in survival for women treated
with the combination of tesmilifene and chemotherapy compared to chemotherapy
alone, demonstrating that tesmilifene significantly enhanced the therapeutic
effect of chemotherapy.
In addition to tesmilifene, YM BioSciences is developing nimotuzumab for
which Phase III IND applications have been filed. The Company is also
developing an anti-GnRH anti-cancer vaccine, Norelin(TM), for which Phase II
data have been released. YM's subsidiary DELEX Therapeutics Inc. is developing
AeroLEF(TM), a unique inhalation delivered formulation of the established
drug, fentanyl, to treat acute pain including cancer pain. This product has
completed a Phase IIa trial with positive results and a randomized Phase IIb
pain trial has been initiated. The Company also has a broad portfolio of
preclinical compounds shown to act as chemopotentiators while protecting
normal cells.
Except for historical information, this press release may contain
forward-looking statements, which reflect the Company's current expectation
regarding future events. These forward-looking statements involve risk and
uncertainties, which may cause but are not limited to, changing market
conditions, the successful and timely completion of clinical studies, the
establishment of corporate alliances, the impact of competitive products and
pricing, new product development, uncertainties related to the regulatory
approval process and other risks detailed from time to time in the Company's
ongoing quarterly and annual reporting.
For further information: Enquiries: Thomas Fechtner, The Trout Group
LLC, Tel. (212) 477-9007 x31, Fax (212) 460-9028, Email:
tfechtner(at)troutgroup.com; Carolyn McEwen, YM BioSciences Inc., Tel.
(905) 629-9761, Fax (905) 629-4959, Email: ir(at)ymbiosciences.com; James
Smith, the Equicom Group Inc., Tel. (416) 815-0700 x 229, Fax (416) 815-0080,
Email: jsmith(at)equicomgroup.com
(YMBA)
END
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