Death Death Death (aka Kappa Light Chains Take a Dive)

Excellent news today: Yesterday, unbeknownst to me, one of the blood tests done was measurement of my Kappa light chain proteins, which is the primary marker used to measure the amount of myeloma cancer cells I have in my bone marrow. My particular type of myeloma doesn’t put out as much of these proteins as normal, but nevertheless they can still be used to gauge the relative level of myeloma cells in my system.

Here’s the graph of the readings over the past 2 months:

The normal range for Kappa light chain readings is from 0.3 to 2.0. Mine were at 8.7 before I started treatment. It’s now at 0.1, below the normal range. Meaning that the KLN-1010 treatment worked. Meaning that, as of now, most of the myeloma cells in my body have been eliminated.

Additional (and more certain) confirmation will come from the results of the bone marrow biopsy I had yesterday. But even by themselves, these Kappa light chain results are super good news.

La Rochelle, here we come!