Figure 1:

Figure 2:

mPD-L1 expression ratio in some clinical trials on NSCLC_
| Clinical trials | Positive mPD-L1 expression ratio | PD-L1 antibody type |
|---|---|---|
| CheckMate 057[18] | 455/582 (78%) | 28-8 |
| CheckMate 017[19] | 225/272 (83%) | 28-8 |
| CheckMate 012[20] | 32/46 (70%) | 28-8 |
| CheckMate 227[21] | 1189/1739 (68%) | 28-8 |
| Keynote 189[22] | 63% | 22C3 |
| Keynote 001[23] | 60,8% | 22C3 |
| Keynote 010[24] | 1475/2222 (66%) | 22C3 |
| Keynote 021[25] | 56,8% | 22C3 |
| Keynote 042[26] | 1978/3019 (66%) | 22C3 |
| Keynote 024[27] | 500/1653 (30,2%) | 22C3 |
| POPLAR[28] | 109/287 (37,9%) | SP142 |
| JAVELIN Lung 100[29] | 88/156 (56,4%) | 73-10 |
| JAVELIN Lung 200[30] | 527/792 (66%) | 73-10 |
Values of sPD-L1 concentration according to clinical and paraclinical characteristics_
| Feature | Subgroup | Median (IQR) | p** |
|---|---|---|---|
| Gender | Male (n = 59) | 1.09 (0.5 – 2.56) | 0.67 |
| Female (n = 21) | 0.93 (0.6 – 1.49) | ||
| Smoking | Yes (n = 38) | 1.08 (0.56 – 2.43 | 0.965 |
| No (n = 42) | 1.03 (0.59 – 2.28) | ||
| Staging | IIIB (n = 16) | 1.06 (0.68 – 2.16) | 0.764 |
| IV (n = 64) | 1.08 (0.52 – 2.36) | ||
| Age | ≤ 65 (n = 40) | 1.04 (0.55 – 2.49) | 0.577 |
| > 65 (n = 40) | 1.1 (0.67 – 2.27) | ||
| Tumor size | < 30 mm (n = 27) | 1.49 (0.65 – 2.29) | 0.981 |
| ≥ 30 mm (n = 53) | 1.07 (0.56 – 2.28) | ||
| Phenotype | ADC (n = 58) | 0.96 (0.59 – 2.25) | 0.763 |
| SCC (n = 16) | 1.17 (0.46 – 2.24) | ||
| ASC (n = 6) | 2.0 (0.57 – 3.59) | ||
| EGFR mutation | Positive (n = 24) | 1.125 (0.69 – 2.2125) | 0.187 |
| Negative (n = 56) | 2.56 (0.865 – 4.80) |
Logistic regression model between increased sPD-L1 and mPD-L1 and clinical and paraclinical characteristics of NSCLC_
| sPDL1 expression low – high | OR | SE | z | p | 95% CI | |
|---|---|---|---|---|---|---|
| Age | 1.06 | 0.0317 | 1.85 | 0.065 | 0.996 | 1.121 |
| Gender | 0.34 | 0.2732 | −1.34 | 0.179 | 0.072 | 1.635 |
| BMI | 0.86 | 0.1049 | −1.27 | 0.204 | 0.673 | 1.088 |
| Disease duration | 1.003 | 0.0068 | 0.52 | 0.604 | 0.990 | 1.017 |
| Clubbing | 9.49 | 14.413 | 1.48 | 0.139 | 0.483 | 186.36 |
| Bronchial Obstruction | 0.06 | 0.0753 | −2.19 | 0.029 | 0.004 | 0.7417 |
| Tumor size | 1.01 | 0.0152 | 0.77 | 0.442 | 0.982 | 1.042 |
| Metastases | 0.21 | 0.2167 | −1.51 | 0.131 | 0.027 | 1.595 |
| ADC | 0.79 | 0.5333 | −0.35 | 0.726 | 0.209 | 2.968 |
| _cons | 1.56 | 5.2885 | 0.13 | 0.896 | 0.002 | 1202.81 |
| p = 0.031; R2 = 0.20 | ||||||
Characteristics of study subjects_
| Feature | NSCLC (n1 = 80) | Control (n2 = 30) | p |
|---|---|---|---|
| General Characteristics | |||
| Age (X ± SD) (years) | 65.58 ± 12.15 | 61.23 ± 15.84 | 0.096* |
| Male | 59 (73.75%) | 14 (46.67%) | 0.007a |
| Female | 21 (26.25%) | 16 (53.33%) | |
| Smoking | 38 (47.5%) | 8 (26.67%) | < 0.049a |
| BMI | 20,85 ± 2,41 | 21,1 ± 2,06 | 0.624* |
| Clinical Features: | |||
| Fatigue | 36 (45.0%) | 0 | |
| Weight loss | 32 (40.0%) | 0 | |
| Fever | 11 (13.75%) | 0 | |
| Clubbing | 7 (8.75%) | 0 | |
| Peripheral Lymphadenopathy | 15 (18.75%) | 0 | |
| Cough | 66 (82.5%) | 0 | |
| Sputum | 22 (27.5%) | 0 | |
| Hemoptysis | 9 (11.25%) | 0 | |
| Chest pain | 52 (65.0%) | 0 | |
| Dyspnea | 29 (36.25%) | 0 | |
| Bronchial Obstruction | 6 (7.5%) | NA | |
| Consolidation syndrome | 11 (13.92%) | NA | |
| Pleural effusion | 36 (45.0%) | NA | |
| Mediastinal Syndrome | 4 (5.0%) | NA | |
| CT Chest Imaging Characteristics: | |||
| Nodules | 27 (23.75%) | NA | |
| Mass | 53 (66.25%) | NA | |
| Largest Tumor Size (X±SD) (mm) | 47.73 ± 21.46 | NA | |
| Pleural effusion | 38 (47.5%) | NA | |
| Mediastinal lymph nodes | 21 (26.25%) | NA | |
| Atelectasis | 15 (18.75%) | NA | |
| Staging | NA | ||
| IIIB | 16 (20.0%) | NA | |
| IV | 64 (80.0%) | NA | |
| Pathology and Gene mutations: | |||
| ADC | 58 (72.5%) | NA | |
| SCC | 16 (20.0%) | NA | |
| ASC | 6 (7.5%) | NA | |
| EGFR mutation | 24 (30.0%) | NA | |
| sPD-L1 in PBMC: | |||
| Median (Min – Max) | 1.08 (0.01 – 5.56) | 0.42 (0.01 – 1.66) | < 0.001** |
| mPD-L1 molecular expression: | |||
| Negative | 31 (38.75%) | NA | |
| Positive | 49 (61.25%) | NA | |
| Expression level | |||
| - Low (1 – 49%) | 26 (32.5%) | NA | |
| - High (≥ 50%) | 23 (28.75) | NA | |
| Median (min – max) | 10 (0 – 50) | NA | |
| X ± SD (%) | 27.82 ± 33.61 | NA | |
Relationship between mPD-L1 and sPD-L1 expression_
| mPD-L1 expression | sPD-L1 Median (IQR) | p** | |
|---|---|---|---|
| Not expressed (n = 31) | 0.93 (0.48 – 2.06) | 0.304 | |
| Expressed (n = 49) | 1.09 (0.64 – 2.56) | ||
| Expression level | - Low (n = 26) | 1.21 (0.65 – 2.7) | 0.726 |
| - High (n = 23) | 1.04 (0.49 – 2.56) | ||
