Table 1.

List of acquired CD38 deletions with their respective size/location, estimated clonal level, and concurrent FC findings

Study no.Patient age (y)CD38 deletionClonal levelCD38 surface level
TypeChr4 locationSizeCGAT, %FISH
53 Interstitial 15 740 331 to 15 859 589 119 kb 80.0 — ↓ on major subset  
41 2 238 817 to 29 468 498 27 Mb 60.0 — Absent on all  
61 Terminal 1-39 255 744 39 Mb 20.0 ND  ↓ on major subset 
71 1-39 466 414 39 Mb 25.0 ND  ↓ on all 
52 1-27 752 460 28 Mb 30.0 21.5% Absent on major subset  
67 1-28 779 013 29 Mb 30.0 5.5%  Absent on minor subset  
58 Whole chromosome Deletion 4 190 Mb >80 6.3%  ↓ on all 
59 Deletion 4 190 Mb 20-30 25.0% Absent on major subset  
46 Deletion 4 190 Mb 40 71%  Absent on all  
10 64 Deletion 4 190 Mb 10-20 18.5% Absent on all  
Study no.Patient age (y)CD38 deletionClonal levelCD38 surface level
TypeChr4 locationSizeCGAT, %FISH
53 Interstitial 15 740 331 to 15 859 589 119 kb 80.0 — ↓ on major subset  
41 2 238 817 to 29 468 498 27 Mb 60.0 — Absent on all  
61 Terminal 1-39 255 744 39 Mb 20.0 ND  ↓ on major subset 
71 1-39 466 414 39 Mb 25.0 ND  ↓ on all 
52 1-27 752 460 28 Mb 30.0 21.5% Absent on major subset  
67 1-28 779 013 29 Mb 30.0 5.5%  Absent on minor subset  
58 Whole chromosome Deletion 4 190 Mb >80 6.3%  ↓ on all 
59 Deletion 4 190 Mb 20-30 25.0% Absent on major subset  
46 Deletion 4 190 Mb 40 71%  Absent on all  
10 64 Deletion 4 190 Mb 10-20 18.5% Absent on all  

The clonal level is reported as the proportion of CD138-enriched cells, unless otherwise specified.

Chr4, chromosome 4; ND, not detected; NR, not reported.

Received dara within 6 months.

Not CD138 enriched.

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