The possibility medical isotopes could be produced with cyclotrons is dazzling, especially in light of the reports a few years ago when it was discovered that the Chalk River facility (Ontario, Canada), the source for one 1/3 of the world’s medical isotopes, was badly deteriorated (my July 2, 2010 posting). Today, Sunday, June 9, 2013, TRIUMF, Canada’s national laboratory for particle and nuclear physics, and its partners announced that they have devised a technique for producing medical isotopes that is not dependent on materials from nuclear reactors. From the June 9, 2013 TRIUMF news release,
With Canadian-developed tools and technology, a national team led by TRIUMF has reached a crucial milestone at the BC Cancer Agency in developing and deploying alternatives for supplying key medical isotopes. The team used a medical cyclotron that was designed and manufactured by Advanced Cyclotron Systems, Inc. (ACSI) of Richmond, BC, and successfully achieved large-scale production of technetium-99m (Tc-99m), sufficient for a metropolitan area.
The team announced the successful ramp-up of its technology to regularly produce enough of the critical Tc-99m isotope to supply an urban area the size of Vancouver. This achievement eliminates the need for nuclear reactors to produce isotopes, especially those that use weaponsgrade uranium, which has been the traditional approach.
Of course, the metropolitan area will need its own cyclotron and the technology has yet to be proven in an industrial-grade production facility. The news release goes on to explain the situation with medical isotopes,
Each year, tens of millions of medical procedures are conducted around the world with Tc-99m, an isotope used in radiopharmaceuticals for imaging disease in the heart, bones, and elsewhere in the body. Two aging nuclear reactors produce about three quarters of the global supply; one of them is the National Research Universal (NRU) reactor in Chalk River, Ontario. In the past few years, both reactors have suffered maintenance and repair outages, threatening the global supply of medical isotopes.
Here are some more technical details about the project,
“The approach taken by our consortium has established the feasibility of producing appreciable quantities of Tc-99m on Canada’s existing cyclotron network. These same machines are also producing additional isotopes used in a growing number of alternative imaging procedures. The net effect is that Canada will remain on the forefront of medical-isotope technology for the
foreseeable future,” said John Valliant, Scientific Director and CEO of the CPDC in Hamilton.
In February 2012, the TRIUMF-led team demonstrated that the production of Tc-99m was possible on existing medical cyclotrons based in BC and Ontario. After a year of scaling up performance and making engineering improvements to target fabrication, control, and purification procedures, the team has achieved its next milestone: the production of enough Tc-99m in a six hour overnight shift at the BC Cancer Agency Vancouver Centre to supply the demands of a metropolitan area (roughly equivalent to 10 Curies). The next milestones for TRIUMF and its partners include engineering optimization and regulatory approval.
As for the future (from the news releases),
Commenting on the path forward, TRIUMF’s director Nigel Lockyer said, “Having cleared this technical hurdle, we are well on our way to assembling the right team to make a competitive proposal to join the BC supply chain for medical isotopes such as technetium-99m. I look forward to working with existing and new partners, including ACSI, in making this possible.”
For those who are curious about the partners,
TRIUMF is Canada’s national laboratory for particle and nuclear physics. Together with its partner AAPS, Inc., TRIUMF also seeks to commercialize its technologies for the benefit of all Canadians. Located on the south campus of the University of British Columbia, TRIUMF receives operating support from the Government of Canada through a contribution agreement via National Research Council Canada; the Government of British Columbia provides capital for new buildings. TRIUMF is owned and operated as a joint venture by a consortium of the following Canadian universities: University of Alberta, University of British Columbia, University of Calgary, Carleton University, University of Guelph, University of Manitoba, McGill University, McMaster University, Université de Montréal, University of Northern British Columbia, Queen’s University, University of Regina, Saint Mary’s University, Simon Fraser University, University of Toronto, University of Victoria, University of Winnipeg, and York University. For more information, please visit us at http://www.triumf.ca.
In 2003, Ebco Industries—using technology licensed from world-renowned subatomic-physics research centre, TRIUMF—founded ACSI with a goal to revolutionize cyclotron design. Since then, ACSI has specialized in producing advanced cyclotrons that can meet the world’s growing isotope needs. As part of the Government of Canada’s Isotope Technology Acceleration Program (ITAP), ACSI is a member of a consortium funded alongside the TRIUMF team to develop viable alternatives to nuclear reactor-produced medical isotopes. For more information, please visit us at http://www.advancedcyclotron.com.
About the BC Cancer Agency
The BC Cancer Agency, an agency of the Provincial Health Services Authority, is committed to reducing the incidence of cancer, reducing the mortality from cancer, and improving the quality of life of those living with cancer. It provides a comprehensive cancer control program for the people of British Columbia by working with community partners to deliver a range of oncology services, including prevention, early detection, diagnosis and treatment, research, education, supportive care, rehabilitation and palliative care. The BC Cancer Foundation raises funds to support research and enhancements to patient care at the BC Cancer Agency.
About the Centre for Probe Development and Commercialization
The Centre for Probe Development and Commercialization (CPDC) discovers, develops and distributes molecular imaging probes for the early diagnosis of diseases and to assess the effectiveness of treatments. An important part of Ontario’s health system, CPDC provides a reliable, daily supply of imaging probes to hospitals across the province. CPDC also works collaboratively with industry and academic partners, offering the research, manufacturing and regulatory expertise needed to move innovative probe technology and new therapeutic drugs from R&D labs to clinical use. CPDC, located on the McMaster University Campus, is a Centre of Excellence for Commercialization and Research, part of the Networks of Centres of Excellence Program. It is supported by the Ontario Institute for Cancer Research, GE Healthcare, Cancer
Care Ontario, and McMaster University.
About Lawson Health Research Institute
Lawson Health Research Institute, located in London, Ontario, is one of Canada’s largest and most respected hospital-based research institutes. As the research arm of London Health Sciences Centre and St. Joseph’s Health Care, London, and working in partnership with The University of Western Ontario, Lawson is committed to furthering scientific knowledge to advance health care around the world. Its state-of-the-art, 6,000 sq. ft. Cyclotron & PET Radiochemistry Facility opened on March 31, 2010 and includes a GE PETtrace 880 cyclotron with proton and deuteron acceleration capability, class 100 shielded hot cells, and automated chemistry units for producing F-18 and C-11 radiopharmaceuticals – all to GMP specifications.