Thursday, July 24, 2014

The Roadmaps - Induction to IM1

In the early days of Jaxon's treatment, we were given reams of paperwork to review and dozens of documents to sign. Part of the information we received is what they call in the biz, The Roadmaps. It's very official and medically written, but we've since learned how to make sense of it all. It outlines the medicines used in each phase of treatment, how they are administered (by mouth, IV, intrathecal ... ), what days they are administered, important notes for physicians, and what bloodwork or other tests are to be completed prior to, or after administration. 

Jaxon is on a treatment protocol for Average Risk Pre-B Acute Lymphoblastic Leukemia. (AALL0932).


The Six Stages of treatment for A.L.L.

Induction (4 weeks) *completed*
Consolidation (4 weeks) *completed*
Interim Maintenance 1 (8 weeks, ending 8-07-2014) *almost completed*
Delayed Intensification (8 weeks)
Interim Maintenance 2 (8 weeks)
Long Term Maintenance (2.5 years)

Induction (approx. 4 weeks duration, Diagnosis April 10 - May 14)

Day -2 (@ diagnosis) 
Complete Blood Count (CBC)
Under sedation:
Bone Marrow Biopsy
Intrathecal Cytarabine - IT ARAC (injected into spinal fluid)
Spinal Tap to check for cancer in his Central Spinal Fluid (CSF) *all clear!*

Every time he receives chemo into his CSF, a sample is taken to check for cancer cells.


Day 1 (Saturday, April 12, 2014)

Surgery to place Vascular Access Device (VAD)
This is used to draw routine bloodwork and to administer fluids and medication as needed.
IV Vincristine (VCR) 1.1mg 
Oral antibiotic (Septra) taken EVERY Fri/Sat/Sun FOR 3 YEARS! To protect against a certain kind of pheumonia that immunocompromised patients are susceptible to.

Day 4 - April 15
IV Pegaspargase (PEG-ASP)

Day 8 - April 17
(Bumped ahead by 2 days because the actual Day 8 landed on Easter weekend)
IV VCR
Methotrexate (IT MTX - sedated, injected into CSF)
Special bloodwork to determine response to chemo (Good results!)

Day 15 - April 25
IV VCR

Day 22 - May 2
IV VCR

Days 1-28
Dexamethasone (DEX) Oral steroid, a powerful cancer fighter
Oral Ranitidine (to protect his stomach lining from the DEX)
Oral Liquid Sweetener (to protect his taste buds from the awful taste of the Ranitidine)

Day 29 - May 8
Under sedation:
IT MTX
Bone Marrow Biopsy to determine response to chemo (Remission!) 
No further bone marrow testing will be required.

Consolidation (4 weeks, May 15-June 11)
Day 1 - May 15
IV VCR
IT MTX (sedated)

Day 8 - May 22
IT MTX (sedated)

Day 15 - May 28
IT MTX (sedated)

Days 1-28
Oral Mercaptopurine (6-MP)

Interim Maintenance 1  (IM1) 56 days began June 11
Begins only when ANC is at .75 or greater. His was .76, so no delay!
Day 1 - June 11
IV VCR
IV MTX (IV Methotrexate, given in escalating doses as long as ANC & Platelets reach criteria.
He began with 70 mg.)

Day 11 - June 20
IV VCR
IV MTX - 110 mg

Day 21 - July 2
IV VCR
IV MTX - 110 mg (His ANC was .60, so dose was not escalated.)

Day 31 - July 14
IT MTX (sedated)
IV VCR
IV MTX - 150 mg

Day 41 - July 23rd
IV VCR
IV MTX - 183 mg
He also had an ECG and an ECHO to get a baseline of his heart structure and function, as one of the drugs used in the next phase of treatment (Doxorubicin - DOXO) is known to affect heart function in some patients. Based on the small dose Jaxon will receive as part of his treatment, it is unlikely that he will have any heart issues down the road, but because it is a known side effect, testing needs to be done prior to receiving DOXO. His cardiac function will be monitored during treatment, and will be regularly tested for the rest of his life. 

We are now enjoying a chemo vacation, as there is nothing scheduled for the rest of this phase. He will have peripheral blood work (from the arm, like a routine blood test) first thing in the morning on August 7 to see if his ANC and Platelets are high enough (ANC @ .75 and Platelets @ 75). If he reaches those criteria, we will travel to Vancouver to begin Delayed Intensification at BCCH on August 8.  This needs to be done at BCCH as he needs an LP (Lumbar Puncture to administer IT MTX) and our Victoria Oncologist will be on holidays. We already knew we would have to be at BCCH on Day 4 of DI for Pegaspargase, so we're just going a few days early and making a weekend out of it. We've booked a room at the new Ronald McDonald House!

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