Patient characteristics
During the 2018 cohort (C1), a total of 86 patients were included in our study from July 1st 2018 to November 1st 2018, while 302 were evaluated in C2 between December 1st 2020 and April 16th 2021. Gastro-intestinal (23%), hematological (14%), genito-urinary (12%) and lung (11%) cancers were the most frequent tumor types. As expected in early clinical trial, most patients had an ECOG of 0 or 1 and had already received ≥ 3 lines of therapy (Table 1). Two patients in C1 and one in C2 already had seen the palliative care team before beginning the trial.
Table 1
Patient characteristics on cohort 1 2018 (C1) and cohort 2 2020/21 (C2)
|
Cohort 1 (C1)
n=86 (%)
|
Cohort 2 (C2)
n=302 (%)
|
Age
<50 years old
50-70 years old
>70 years old
|
25 (29%)
44 (51%)
17 (20%)
|
58 (19%)
187 (62%)
57 (19%)
|
Primary cancer
Gastro-intestinal
Hematological
Lung
Genito-urinary
Skin
Sarcoma
ENT
Gynecologic
Breast
Other
|
14 (16%)
16 (19%)
8 (9%)
11 (13%)
9 (11%)
3 (3%)
4 (4%)
8 (9%)
4 (4%)
9 (11%)
|
74 (25%)
36 (12%)
34 (11%)
36 (12%)
23 (7.5%)
25 (8%)
23 (7.5%)
14 (5%)
8 (2%)
29 (10%)
|
ECOG PS
0
1
2
|
35 (41%)
48 (56%)
3 (3%)
|
133 (44%)
157 (52%)
12 (4%)
|
Number of prior lines
<3
3-5
>5
|
29 (34%)
52 (60%)
5 (6%)
|
93 (31%)
166 (55%)
43 (14%)
|
Number of metastatic sites
1
2
≥3
|
55 (64%)
17 (20%)
14 (16%)
|
127 (42%)
105 (35%)
70 (23%)
|
C1: cohort 1 (2018), C2: cohort 2 (2020/21), PS: performans status, ENT: ear, nose, troat (head and neck cancers) |
Regarding prognostic factors, there was no significant difference between the two cohorts in terms of age (p = 0.36), ECOG performance status (PS) (p = 0.85), number of prior lines of treatment (p = 0.14), LDH level (p = 0.37) and RMH score (p = 0.53), whereas there were variations observed in terms of median albumin level (40 and 44 g/L, p<0.001) and number of metastatic site (1 [0-4] and 2 [0-5], p<0.001) between patients in C1 and C2 respectively (Table 2).
Table 2
Prognostic factors and PALLIA 10 assessment in cohort 1 (C1) and 2 (C2)
|
Cohort 1 (C1), median (range)
n=86
|
Cohort 2 (C2), median (range)
n=302
|
p
|
Age
|
61 (28-83)
|
60 (19-93)
|
0.36
|
Prior lines of therapy
|
3 (1-9)
|
3 (0-20)
|
0.14
|
Pallia 10
|
1 (1-5)
|
1 (1-8)
|
0.06
|
ECOG
|
1 (0-2)
|
1 (0-2)
|
0.85
|
RMH score
|
1 (0-3)
|
1 (0-3)
|
0.53
|
LDH level
|
197 (106-1318)
|
224 (102-2644)
|
0.37
|
Albumin level
|
40 (30-48)
|
44 (29-52)
|
<0.001
|
Number of metastatic sites
|
1 (0-4)
|
2 (0-5)
|
<0.001
|
Pallia 10 assessment
Median time to PALLIA 10 assessment from time to trial onset was 15.5 days [0-1874] in C2 while it was only done on the first day of treatment in C1. Median PALLIA 10 score was of 1 in the two cohorts (range in C1: 1-5 and 1-8 in C2, p=0.06). On C1 and C2, 12% and 5% of patients had a dedicated palliative consultation respectively (p=0.024) with a median time of referral of 18 and 2 months after the trial onset (p=0.055) and a median PALLIA 10 score of 1.5 and 2 (p=0.65), respectively.
Outcomes
Overall, at data cut-off (August 1st 2021), 94% (C1) and 60% (C2) of the patients had progressive disease and stepped out of the trial. Among those, 77% and 74% were still alive 3 months after discontinuation of the study (p = 0.78) (Figure 1) and 63% and 70% had at least one subsequent line of treatment in C1 and C2.
Median OS was 10 months in C1 and not reached in C2.
Double blind Pallia 10 assessment
The first double blind study done within C2 between November 1st 2021 and January 22nd 2021 involved the evaluation of 25 patients and showed that PALLIA 10 score what significantly higher when done by a palliative care specialist than by the phase I physician (median score of 1 and 4, p<0.001). Likewise, the assessment of the score from April 12th 2021 to April 23rd 2021 for 37 patients demonstrated a higher median PALLIA 10 when it was realized by a palliative care physician than by a phase I nurse and a phase I physician (median score of 5, 3 and 1, p<0.001) (Figure 2). There was no correlation between a score >3 and survival at three months whether it was performed by a phase I physician (p=0.09), a phase I nurse (p=0.16) or a palliative care physician (p=0.39).