This is a phase 1 study to test different doses of a new investigational drug called
CFI-400945 to see which dose is safer in people. This study will also look at the safety
of CFI-400945 and to study its effects on patients with advanced cancers. This drug has
been tested in animals but not yet in people.
CFI-400945 is an oral (taken by mouth) drug that works by blocking polo-like kinase 4
(PLK4) from working. PLK4 is a protein that is important in regulating cell growth and
division and cell death. Many tumors are shown to make too much PLK4. When there is too
much PLK4 produced, it is believed to lead to uncontrolled cancer cell growth and
division. Therefore, by blocking this protein from working, it is believed to stop tumors
growing or shrink them.
Study sponsor and potential other locations can be found on ClinicalTrials.gov for NCT01954316.
All participants will receive CFI-400945. At the beginning of the study, participants are
given a low dose of CFI-400945 and are watched very closely to see what side effects they
have and to make sure the side effects are not severe. If the side effects are not
severe, then more participants are asked to join the study and are given a higher dose of
study drug. Participants joining the study later on will get higher doses of study drug
than participants who join earlier. This will continue until the highest dose of study
drug that can be taken without severe side effects is found (called maximum tolerated
dose). Doses higher than that will not be given.
After the best dose of study drug is found, additional participants will be asked to join
the study and will be given the study drug at the maximum tolerated dose to further test
the safety and the drug at that dose.
Lead OrganizationToronto Western Hospital