Thursday, April 17, 2014

Appointment at Princess Margaret

On Monday, April 14th I traveled to Toronto for an appointment at Princess Margaret Cancer Centre (PMCC).  I was to meet with Dr. Amit Oza to discuss clinical trials.  I actually met with Dr. Les Levin who is a member of the gynecological cancer team.  We had a great chat for about 1/2 hour.

He came to the meeting fully versed in my condition with the help of the summary provided by Grand River Cancer Centre.  He said it was a very good summary and the team had reviewed it.  I also brought with me the last 4 CT Scans and he had already reviewed those as well.

Basically, the end result of our discussion is that he and the team decided that it was unclear whether I am 'platinum sensitive' or 'platinum resistant'.  This is a very key criteria for the studies they conduct at PMCC.  I was unclear what these terms meant but he explained it very well.

Platinum sensitive:  When given a series of treatments of platinum based chemotherapy drug and a patient is disease free (not visible in a CT Scan)  for a period of 6 months or more months.  One drug of this type is Carboplatin.

Platinum resistant:  After being given a series of treatment of platinum based chemotherapy and patient shows growth of visible disease within 6 or less months.  The patient is said to be resistant to the treatment.

In my situation the team at PMCC doesn't know according to the information in my file.  My last treatment of Carboplatin in June 2013 resulted in a severe allergic reaction.  This was my second treatment in the series and my doctor and I decided we should stop treatment and take a break.  By September of 2013 my CA 125 was up 40 points to 386 and a CT Scan in October showed visible evidence of disease.  My doctor and I discussed using a different drug to avoid further allergic reactions and this is when I started the first of 5 treatments of Doxil.  When reviewing this information it is unclear whether I am 'platinum sensitive' because the number of treatments I had with Carboplatin were too few to determine what effect they had.  On the other had could I be 'platinum resistant' because I started treatment so soon after the last one but again it was only 2 treatments.  Perplexing as Dr. Levin expressed.....

Clinical trials are very regimented and almost of a military form.  The studies have to follow strict guidelines or else the researchers cannot draw meaningful conclusions which is what we want from clinical trials and the advancement of medicine.  So for this reason I currently do not qualify for any of their studies.  However, in his opinion, I currently do not show much disease growth in my CT Scans from January to March and thinks I should just take a break from treatment.  ( I am all for this.  My side effects are subsiding quite nicely.)

As a clinician he is suggesting my oncologist try another platinum based chemotherapy the next time (Cisplatin).  There is the risk of another allergic reaction but it would be administered while admitted to hospital.  This will help me in terms of disease management and to determine whether I am 'platinum sensitive'or 'platinum resistant'. In fact there are still many other drugs for the treatment of ovarian cancer that have not been used.  He mentioned gemcitabine, topotecan, etc.  I felt he listened to me and he answered all my questions.  I left there feeling quite optimistic and made my way in the rain to the nearest Winners store to shop before hopping the train back home.

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