Table of Contents
Supplemental Tables...2
Supplemental Table 1 - Multivariable analysis of PFS with interim PET interpreted using Deauville Score...2
Supplemental Table 2 - Multivariable analysis of PFS with interim PET interpreted using ΔSUVmax75%. ...3
Supplemental Table 3 – Multivariable analysis of OS with interim PET interpreted using ΔSUVmax75% 4 Supplemental Table 4 – Baseline characteristics for patients with high-grade FL...5
Supplemental Table 5 – Deauville scores for interim and end-of-treatment PET scans (high-grade cohort)...7
Supplemental Figures...8
Supplemental Figure 1 – PFS Forest Plot...8
Supplemental Figure 2 – PFS based on End-of-Treatment PET...8
Supplemental Figure 3 – PFS based on Interim PET Status and Use of Maintenance Rituximab...9
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Supplemental Tables
Supplemental Table 1 - Multivariable analysis of PFS with interim PET interpreted using ΔSUVmax75%.
Univariable HR
Univariable p value
Multivariable HR
P value
ΔSUVmax75% Yes No
3.2 < 0.001 2.8 0.0026
FLIPI high 2.0 0.020 1.8 0.047
CIT regimen RCHOP BR Other
1.3 1.4
0.35 0.54 Maintenance
rituximab
0.7 0.22 0.7 0.33
Bulk (>8 cm) 1.1 0.72
Age (10-yr inc) 1.1 0.43
Male 1.6 0.10
Baseline SUVmax SUVmax ≤ 13 SUVmax >13
0.6 0.19
Supplemental Table 2 – Multivariable analysis of OS with interim PET interpreted using ΔSUVmax75%
Univariabl e HR
Univariable p value
Multivariable HR
P value
ΔSUVmax75%Yes
No 1.5 0.55 1.3 0.73
FLIPI high 4.9 0.026
CIT regimen RCHOP BR Other
2.8 2.3
0.16 0.47 Maintenance
rituximab
1.5 0.55
Bulk (>8 cm) 1.1 0.87
Age (10-yr inc) 3.0 < 0.001 3.9 0.056
Male 2.1 0.30
Baseline SUVmax SUVmax ≤ 13 SUVmax >13
0.8 0.75
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Supplemental Table 3 - Multivariable analysis of OS with interim PET interpreted using Deauville Score.
Univariabl
e HR Univariable
p value Multivariable
HR P value
Interim PET DS 1-2
3-5 1.7 0.43 1.8 0.37
FLIPI high 4.9 0.026
CIT regimen RCHOP BR Other
2.8 2.3
0.16 0.47 Maintenance
rituximab 1.5 0.55
Bulk (>8 cm) 1.1 0.87
Age (10-yr inc) 3.0 < 0.001 3.0 <0.001
Male 2.1 0.30
Baseline SUVmax SUVmax ≤ 13
SUVmax >13 0.8 0.75
Supplemental Table 4 – Baseline characteristics for patients with high- grade FL
Center
Total DFCI MSK
p-value
n = 50 (%) n = 28 (56) n = 22 (44)
Age at diagnosis
Median (range) 60 (26 - 86) 58 (26 - 77) 65 (39 - 86) 0.094†
Sex
Female 26 (52) 14 (50) 12 (55) 0.78‡
Grade
3b 33 (66) 15 (54) 18 (82) 0.47^
3 NOS 12 (24) 12 (43) -
Unknown 5 (10) 1 (4) 4 (18)
Stage
1 3 (6) 2 (7) 1 (5) 0.52^
2 8 (16) 4 (14) 4 (18)
3 16 (32) 11 (39) 5 (23)
4 23 (46) 11 (39) 12 (55)
B symptoms
Yes 8 (16) 3 (11) 5 (23) 0.28‡
FLIPI score
Low (0-1) 13 (26) 9 (32) 4 (18) 0.28‡
Intermediate (2) 18 (36) 11 (39) 7 (32)
High (3-5) 19 (38) 8 (29) 11 (50)
Maximum disease bulk (cm)
Median (range) 4.30 (1.10 - 18.33) 4.50 (1.10 - 14.90) 3.61 (1.95 - 18.33) 0.66† Baseline SUVmax
Median (range) 13.15 (3.60 - 69.30) 12.80 (3.60 - 69.30) 14.32 (4.57 - 31.00) 0.91† Immunochemotherapy regimen
RCHOP 47 (94) 27 (96) 20 (91) 0.72‡
BR 1 (2) - 1 (5)
Other* 2 (4) 1 (4) 1 (5)
Interim PET after x cycles
2 7 (14) 2 (7) 5 (23) 0.75^
3 37 (74) 24 (86) 13 (59)
4 6 (12) 2 (7) 4 (18)
Consolidative radiation therapy after immunochemotherapy
Yes 1 (2) - 1 (5) 0.44‡
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No 49 (98) 28 (100) 21 (95) Received rituximab maintenance
Yes 7 (14) 3 (11) 4 (18) 0.68‡
No 43 (86) 25 (89) 18 (82)
Doses of rituximab maintenance
Median (range) 6 (3 - 12) 6 (5 - 9) 6 (3 - 12) > 0.99‡
†Wilcoxon rank-sum test, ‡Fisher's exact test, ^Cochran-Armitage test
*Other regimens: RCVP (n=1), R-CEOP (n=1)
Supplemental Table 5 – Deauville scores for interim and end-of- treatment PET scans (high-grade cohort)
Interim PET DS DFCI MSKCC Combined
1 8 (29%) 11 (50%) 19 (38%)
2 16 (57%) 7 (32%) 23 (46%)
3 2 (7%) 2 (9%) 4 (8%)
4 0 (0%) 2 (9%) 2 (4%)
5 2 (7%) 0 (0%) 2 (4%)
EOT PET DS DFCI MSKCC Combined
1 13 (46%) 8 (36%) 21 (42%)
2 11 (39%) 4 (18%) 15 (30%)
3 0 (0%) 0 (0%) 0 (0%)
4 1 (4%) 1 (5%) 2 (4%)
5 2 (7%) 1 (5%) 3 (6%)
Unavailable for
review 1 (4%) 8 (36%) 9 (18%)
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Supplemental Figures
Supplemental Figure 1 – PFS Forest Plot
Supplemental Figure 1 – PFS Forest Plot. Comparison of PFS between patients with a DS of 4-5 vs a DS of 1-2 among patient subgroups.
Supplemental Figure 2 – PFS based on End-of-Treatment PET
Supplemental Figure 2 – PFS based on End-of-Treatment PET assessed using DS among (left) patients with a DS of 1, 2, 3, 4, and 5 or (right) among patients with a DS of 1-3 vs 4-5.
Supplemental Figure 3 – PFS based on Interim PET Status and Use of Maintenance Rituximab
(A)
(B)
(C)
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Supplemental Figure 3 - PFS based on Interim PET status and Use of Maintenance Rituximab, among patients with (A) a negative interim PET scan (DS 1-2), (B) a positive interim PET scan (DS 3-5), and (C) a negative interim PET (DS 1-2) followed by a positive end-of-treatment PET (DS 4-5).