TERAPIE INNOVATIVE DEI TUMORI TIROIDE Rossella Elisei, MD · THYROID TUMOR CELL ENDOTELIAL CELL The...
Transcript of TERAPIE INNOVATIVE DEI TUMORI TIROIDE Rossella Elisei, MD · THYROID TUMOR CELL ENDOTELIAL CELL The...
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TERAPIE INNOVATIVE DEI TUMORI TIROIDE
Rossella Elisei, MD
Associate Professor of EndocrinologyDepartment of Endocrinology
University of Pisa, Italy
FoRiSIE Winter School in Clinical Endocrinology8-11 Gennaio, 2020
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GOOD TUMORS
90% OF WD-PTC70% OF WD-FTC50% OF MTC
CURABLE
15-20% OF WD-DTCLOOSING
THE WD FEATURES
INTERMEDIATE
BAD TUMORS
80% OF PDTC100% OF ATC30% OF MTC
LETHAL
THYROID CARCINOMAHAVE DIFFERENT
BIOLOGICAL BEHAVIOURS
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For many years: No systemic therapies for bad and ugly thyroid cancer
TYROSINE KINASE INHIBITORS!
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The majority of TKIs are small molecules competing for ATP binding site
ATP binding site
TK receptor
TK receptor
TK receptor
TKI
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PLCg
P P
RET EGFRMET
P
P
p21ras
PI3KGRB2 SOS
AKT
MEK
PTEN
VEGFR
VEGFR
VEGF
THYROID TUMOR CELL
ENDOTELIAL CELL
The TKI cross-talking
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Modified from Kondo T, et al.Nat Rev Cancer. 2006
Genetic alteration PTC FTC ATC MTC
RET rearrangement
13-43% ⎯ ⎯ ⎯
RET mutation ⎯ ⎯ ⎯
30-50% (sporadic)
(MEN2: 100%)
NTRK1 rearrangement
5-13% ⎯ ⎯ ⎯
BRAF mutation 29-69% ⎯ 10-35% ⎯
RAS mutation 0-21% 40-53% 20-60%20-25% in sporadic
PPARrearrangement
⎯ 25-63% ⎯ ⎯
P53 mutation ⎯ ⎯ 67-88% ⎯
Genetic alterations in thyroid cancer are targets of TKI
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PROFILE OF TKI IN DEVELOPMENT FOR THE TREATMENT
OF RAI REFRACTORY THYROID CANCER
AND ADVANCED MEDULLARY THYROID CANCER
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ACTIONS OF TKI ASSOCIATED WITH
DIFFERENT TARGETS
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SORAFENIB2005 2007
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• Locally advanced or
metastatic,
RAI-refractory DTC
• Radiologic progression
(RECIST) within the
previous 14 months
• No prior chemotherapy,
targeted therapy, or
thalidomide
417 patients randomized from Oct 2009
to July 2011
DECISION study design: phase III
• Stratified by:
– geographical region (North America or Europe or Asia)
– age (<60 or ≥60 years)
• Progression assessed by independent central review
every 8 weeks
• At progression:
– patients on placebo allowed to cross over at the investigator’s discretion
– patients on sorafenib allowed to continue on open-label sorafenib at the investigator’s
discretion
* Progression-free survival (PFS) – Time from the date of randomization until the date of
radiological progression or death (if death occurs before progression).
Sorafenib400 mg orally twice daily
Placebo orally twice daily
Randomization 1:1Primary endpoint
Secondary endpoints
Overall survival
Response rate
Safety
Time to progression
Disease control rate
Duration of response
Sorafenib exposure (AUC0–12)
• Progression-free survival*
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n
Median PFS,
days (months)
Sorafenib
Placebo
207 329 (10.8)
210 175 (5.8)
100 200 300 400 500 600
Days from randomization
0 700 800
100
90
80
70
60
50
40
30
20
10
0
HR: 0.587; 95% CI: 0.454–0.758;
p<0.0001
Full analysis set.CI, confidence interval; HR, hazard ratio; PFS, progression-free survival
Primary Objective: comparison of the progression free survivals of the two groups according to RECIST
PROGRESSION F
REE S
URVIVAL%
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PFS in predefined subgroups
Variable n HR (95% CI)Region Europe 249
North America 72
Asia 96Age group <60 years 161
≥60 years 256Histology (central review) Papillary 235
Hürthle cell 74
Follicular 31
Poorly differentiated 38Lung metastases only No 347
Yes 70Bone metastases only No 304
Yes 113FDG uptake Negative 29
Positive 320No. target or non-target lesions <Median 163
≥Median 254Target lesion size <Median 208
≥Median 209Gender Male 199
Female 218Cumulative RAI ≥600 mCi No 264
Yes 1330.0 0.5 1.0 1.5 2.0
Favors sorafenib
Favors placebo
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A CASE OF POORLY DIFFERENTIATED THYROID CANCER TREATED WITH SORAFENIB
Before therapy
After 10 days
After 20 days
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Other secondary efficacy endpoints
Sorafenib
n (%)
Placebo
n (%)p value
Total evaluable patients 196 201
Response rate 24 (12.2) 1 (0.5) <0.0001
Complete response 0 0 –
Partial response 24 (12.2) 1 (0.5) –
Stable disease for ≥6 months 82 (41.8) 67 (33.2) –
Disease control rate (CR + PR
+ SD ≥6 months)106 (54.1) 68 (33.8) <0.0001
Median duration of response
(PRs) months (range)
10.2 (7.4–
16.6)NA –
CR, complete response; PR, partial response;
SD, stable disease; NA, not assessed
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Maximum reduction in target lesion size(by independent central review)
Maxim
um
red
ucti
on
in
targ
et
lesio
n s
ize (
%)
–70
–50
–40
–20
0
20
60
–30
–10
10
30
50
40
–60
Sorafenib Placebo
27% of patients73% of patients
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Overall survivalS
urv
iva
l p
rob
ab
ilit
y (
%)
Days from randomization
0
10
20
40
60
80
100
30
50
70
90
0 100 200 300 400 500 600 700 800 900 1000
At progression:
• 150 patients on placebo (71%) received open-label sorafenib
• 55 patients on sorafenib (27%) received open-label sorafenib
Median OS
Sorafenib Not reached
Placebo Not reached
HR: 0.802; 95% CI: 0.539–1.194
p=0.138, one-sided
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SELECT Study 303: Study Schema
1818
Patients with DTC (N = 392)
•IRR evidence of progression within previous 13 months
•131I-refractory disease
•Measurable disease
•Up to 1 prior VEGF or VEGFR-targeted therapy
Placebo (n=131)24 mg daily PO
Lenvatinib (n=261)24 mg daily PO
Treatment until
disease progression
confirmed by IRR
(RECIST v1.1)
Lenvatinib
(Optional, open-label)
Rand
omization
2:1
International, randomized, double-blind, phase 3 trial
Primary endpoint
• PFS
Secondary endpoints
• ORR
• OS
• Safety
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Primary Endpoint:Kaplan-Meier Estimate of PFS
CI, confidence interval; HR, hazard ratio; NR, not reached.
Median PFS, months (95% CI)
Lenvatinib 18.3 (15.1–NR)
Placebo 3.6 (2.2–3.7)
HR (99% CI): 0.21 (0.14–0.31)
Log-rank test: P < 0.0001
Progression
events, 41%
Progression
events, 86%
Reprinted with permission. © 2014 American Society of Clinical Oncology. All rights reserved
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PFS by Previous VEGF-TKI
Time (months)
Time (months)
Pro
gre
ss
ion
-Fre
e
Su
rviv
al
1.00.90.80.70.60.50.40.30.20.10.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Median (months) (95% CI)
Lenvatinib 18.7 (16.4–NR)
Placebo 3.6 (2.1–5.3)
HR (95% CI): 0.20 (0.14–0.27)
Log-rank Test: P < 0.0001
No Previous TKI (n = 299)
Pro
gre
ss
ion
-Fre
e
Su
rviv
al
1.00.90.80.70.60.50.40.30.20.10.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Median (months) (95% CI)
Lenvatinib 15.1 (8.8–NR)
Placebo 3.6 (1.9–3.7)
HR (95% CI): 0.22 (0.12–0.41)
Log-rank Test: P < 0.0001
Previous TKI (1 line) (n = 93)
Lenvatinib 195 167 148 135 123 116 108 72 52 34 20 11 3 0
Placebo 104 56 36 25 17 12 10 4 3 1 1 1 0 0
Number of subjects at risk:
Lenvatinib 66 58 50 41 36 32 28 20 14 10 4 0 0 0
Placebo 27 15 7 4 2 1 1 1 1 1 1 1 0 0
Number of subjects at risk:
Reprinted with permission. © 2014 American Society of Clinical Oncology. All rights reserved
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PFS Subgroup Analyses
CI, confidence interval; HR, hazard ratio; NR, not reached; PFS, progression-free survival.
Events/N Median (Months)
Lenvatinib
14/65
31/72
31/63
31/61
61/141
14/28
32/92
60/157
47/104
17/35
90/226
Placebo
21/28
31/32
31/34
30/37
60/71
18/19
35/41
74/83
39/48
7/7
106/124
Baseline Tumor
Burden (mm)
≤35
35−60
60−92
>92
Histology
Papillary
Poorly differentiated
Follicular
Bone Metastasis
No
Yes
Lung Metastasis
No
Yes
Lenvatinib
NR
16.4
14.8
13.9
16.6
14.8
NR
20.2
14.8
14.8
18.7
Placebo
5.6
3.7
3.6
2.4
3.5
2.1
3.7
3.7
2.1
2.4
3.6
HR (95% CI)
0.14 ( 0.06, 0.33)
0.19 ( 0.10, 0.36)
0.24 ( 0.13, 0.43)
0.21 ( 0.11, 0.42)
0.30 ( 0.20, 0.44)
0.21 ( 0.08, 0.56)
0.10 ( 0.05, 0.19)
0.18 (0.12, 0.27)
0.26 (0.16, 0.42)
0.24 ( 0.08, 0.77)
0.21 ( 0.15, 0.29)
Favors PlaceboFavors Lenvatinib
HR and 95% CI
1010.10.01
Events/N
Reprinted with permission. © 2014 American Society of Clinical Oncology. All rights reserved
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Response Rates
n (%) Lenvatinib (n = 261) Placebo (n = 131)
ORR 169 (65%) 2 (2%)
95% CI 59.0–70.5 0.0–3.6
P-value <0.0001
Complete response 4 (2%) 0
Partial response 165 (63%) 2 (2%)
Stable disease ≥ 23 weeks 40 (15%) 39 (30%)
Progressive disease 18 (7%) 52 (40%)
Median time to objective
response, months (95% CI)a 2.0 (1.9–3.5) –
Duration of response, months,
median (95% CI)NR (16.8–NR) –
a Non-responders were not included in the median time
to response assessment.
Reprinted with permission. © 2014 American Society of Clinical Oncology. All rights reserved
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Best Tumor Response
CR, complete response; PD, progressive disease; PR, partial response; SD, stable disease.
Median tumor
shrinkage for
responders (range):
-52%
(-100%, -30%)
Median tumor
shrinkage for all
patients (range):
+2%
(-53%, +54%)
Reprinted with permission. © 2014 American Society of Clinical Oncology. All rights reserved
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June, 2011 December, 2011
30x30 mm
20x21 mm
upper right paratracheal mediastinum
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(19 MONTHS)
CHANGE IN TUMOR SIZE OVER TIME (data from SELECT)
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June 2016
PARENCHIMAL CAVITY OF THE
SUPERIOR RIGHT LUNG LOBE
(63MM )
Stability of the other lesions
Stability of neoplastic disease fromSeptember 2015 to June 2016…Side effects … appearance of severedyspnea
Clinical case
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RISK OF FISTULAE
❖LOCAL INFILTRATION : TRACHEA, CAROTID, BIG VESSELS, ESOPHAGUS
❖LUNG INFILTRATION: BRONCHI, VESSELS
❖GASTROINTESTINAL: BOWEL ULCERATION OR DIVERTICULITIS
❖ETC…
SEVERE ADVERSE EVENT RISK OF DEATH
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WHICH STARTING DOSE?
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March 2016
September 2016
April 2016
July 2016
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60 x 42 mm 36 x 26 mm
CT scan
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… after 6 months…
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CT scan after 12 months (on March 29, 2017)
60 x 42 mm 24 x 11 mm
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September 2016…
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No therapy
After 1 month After 2 monthsAfter 45 days
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No therapy
After 4 months After 7 months
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Overall Survival, ITT population
Number of subjects at risk:
Lenvatinib 261 248 239 230 219 211 203 169 114 78 55 22 10 3 0
Placebo 131 126 126 118 108 103 96 78 53 39 23 8 2 1 0
Overa
ll S
urv
ival
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.00 2 4 6 8 10 12 14 16 18 20 22 24 26
1.0
28
Time (months)
Median OS, months (95% CI)
Lenvatinib NR (22.0–NR)
Placebo NR (20.3–NR)
HR (95% CI): 0.73 (0.50–1.07)
Log-rank test: P = 0.1032
ITT, intent-to-treat; RPSFT, rank-preserving structural failure time.
Significant difference was
observed in the RPSFT-adjusted
OS, which was used to correct for
a potential cross-over effect in the
placebo arm.
Reprinted with permission. © 2014 American Society of Clinical Oncology. All rights reserved
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Overall Survival by Histology:(Unadjusted for Crossover)
Median months (95% CI)
Lenvatinib 22.0 (21.0–NE)
Placebo NR (16.3–NE)
HR (95% CI): 0.92 (0.60–1.41)
Log-rank test: P = 0.708
Median months (95% CI)
Lenvatinib NR (NE–NE)
Placebo NR (20.3–NE)
HR (95% CI): 0.41 (0.18-0.97)
Log-rank test: P < 0.035
Papillary Thyroid Cancer Follicular Thyroid Cancer
Number of subjects at risk:
Lenvatinib 169 158 153 145 134 127 120 105 71 47 32 13 5 1
Placebo 90 85 85 81 74 71 66 53 35 26 13 5 2 1
Number of subjects at risk:
Lenvatinib 92 90 86 85 85 84 83 64 43 31 23 9 5 2
Placebo 41 41 41 37 34 32 30 25 18 13 10 3 0
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OVERALL SURVIVAL
<65 YRS >65 YRS
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▪ Vandetanib
▪ Approved in the USA (2011) and EU (2012) for symptomatic or
progressive, unresectable locally advanced or metastatic MTC, both
in children and adults
▪ Based on a Phase 3 study (ZETA) demonstrating improved PFS
compared to placebo
▪ Subjects had to have either progressive disease or symptomatic
disease
▪ Cabozantinib
▪ Approved in the USA (2012) and EU (2014) for the treatment of adult
patients with progressive unresectable locally advanced ormetastatic MTC
▪ Based on a Phase 3 study (EXAM) demonstrating improved PFS
compared to placebo
▪ Subjects had to have progressive disease
THE NOVEL DRUGS IN USE IN MTC (2011-2012)
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Vandetanib in patients with locally advanced or metastatic medullary thyroid cancer:
a randomized, double-blind phase III trial (ZETA)Samuel A Wells,1 Bruce G Robinson,2 Robert F Gagel,3 Henning Dralle,4
James A Fagin,5 Massimo Santoro,6 Eric Baudin,7 Rossella Elisei,8
Barbara Jarzab,9 James Vasselli,10 Jessica Read,11 Peter Langmuir10
Anderson J Ryan12 and Martin Schlumberger7, for the ZETA investigators*
1
Time (months)
0
Pro
gres
sio
n-f
re
e s
urviv
al
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
6 12 18 24 30 36
Number of patients
231 196 169 140 40 1 0
100 71 57 45 13 0 0
Vandetanib 300 mg
Placebo
Vandetanib 300 mg
Placebo
FIGURE 1
Significant increase of progression free survival
Wells S. et al, J Clin Oncol, 2011
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Patient n 018: 2 months of Vandetanib
May 2007 September 2007
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0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
Months
Pro
bab
ilit
y
219 121 78 55 31 12 2 1
111 35 11 6 3 2 0 0
Cabozantinib
Placebo
p<0.0001
Progression Free Survival by IRC(Primary Endpoint)
Cabozantinib Placebo
Median PFS(months) 11.2 4.0
1 year PFS 47.3% 7.2%
HR (95% CI) 0.28 (0.19, 0.40)
p < 0.0001
Elisei R et al, JCO, 2013
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PRECabozantinib
Post (6 months)Cabozantinb
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Vandetanib in Children and Adolescents with Multiple Endocrine Neoplasia Type 2B Associated Medullary Thyroid Carcinoma
Fox E et al; Clin Cancer Res; 2013
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CABOZANTINIB PLACEBO
KNOWN RECEIPT OF PRIOR CAPRELSA: N=34
N 25 9
ORR 7(28%)* 0
PFS median, months 12.8
(11.2 in the entire group)
2.8
HR=0.07; p=0.0001
*6 of 7 patients reporting tumor response after treatment with cabozantinib actually stopped vandetanib treatment due to disease progression,
Cabozantinib is active after vandetanib(second line)
Elisei R et al, JCO, 2013
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THE SIDE EFFECTS
and their impact on
the patients’ QofL
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Sorafenib: Most common side effects
AE*, % Sorafenib (n=207) Placebo (n=209)
Any grade Grade 3/4 Any grade Grade 3/4
Hand–foot skin reaction 76.3 20.3 9.6 0
Diarrhea 68.6 5.8 15.3 1.0
Alopecia 67.1 0 7.7 0
Rash/desquamation 50.2 4.8 11.5 0
Fatigue 49.8 5.8 25.4 1.4
Weight loss 46.9 5.8 13.9 1.0
Hypertension 40.6 9.7 12.4 2.4
Metabolic – lab (other) 35.7 0 16.7 0
Anorexia 31.9 2.4 4.8 0
Oral mucositis 23.2 1.0 3.3 0
Pruritus 21.3 1.0 10.5 0
Nausea 20.8 0 11.5 0
Hypocalcemia 18.8 9.2 4.8 1.4
*National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version 3.0
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Adverse Event, %
Lenvatinib (n = 261) Placebo (n = 131)
Any
Grade Grade ≥ 3
Any
GradeGrade ≥ 3
Hypertension 68 42 9 2
Diarrhea 60 8 8 0
Fatigue / asthenia 59 9 28 2
Decreased appetite 50 5 12 0
Nausea / vomiting 46 3 15 1
Decreased weight 46 10 9 0
Stomatitis 36 4 4 0
Palmar-plantar
erythrodysesthesia
syndrome
32 3 1 0
Proteinuria 31 10 2 0
Headache 28 3 6 0
Dysphonia 24 1 3 0
Reprinted with permission. © 2014 American Society of Clinical Oncology. All rights reserved
Lenvatinib: Most common side effects
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>30% of patients:DiarrheaRashNauseaHypertension
ECG QT prolongation 14%
VANDETANIB ADVERSE EVENT
Grade 3, more frequent:DiarrheaHypertensionQT prolongation
Wells S. et al, J Clin Oncol, 2011
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a Worst Grade AE during the treatment period is reportedb Sponsor defined grouping of preferred terms
Cabozantinib (N=214) Placebo (N=109)
Median Duration of Exposure
6.7 months 3.4 months
Adverse Eventa All Grades n (%)
Grade ≥ 3 n (%)
All Grades n (%)
Grade ≥ 3 n
(%)Diarrhea 135 (63) 34 (16) 36 (33) 2 (2)
Hand foot skin reaction 107 (50) 27 (13) 2 (2) -
Decreased weight 102 (48) 10 (5) 11 (10) -
Decreased appetite 98 (46) 10 (5) 17 (16) 1 (0.9)
Nausea 92 (43) 3 (1) 23 (21) -
Fatigue 87 (41) 20 (9) 31 (28) 3 (3)
Dysgeusia 73 (34) 1 (0.5) 6 (6) -
Hair color changes 72 (34) 1 (0.5) 1 (0.9) -
Hypertensionb 70 (33) 18 (8) 5 (5) 1 (0.9)
Most Frequent Adverse Events(>30% Incidence)
Elisei R et al, JCO, 2013
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TKI side effects
UNPREDICTABLE…
EACH PATIENT HAS HIS/HER OWN RISK…
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When to start the TKI?
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RAI-refractory DTC: definition and identification
Schlumberger M, Brose M, Elisei R et al. Definition and management of radioactive iodine-refractory differentiated thyroid cancer. Lancet Diabetes Endocrinol. 2014
1. Local disease or distant metastases unable to take up
131I: negative post-therapeutic WBS (all lesions or
some of them)
2. Local disease or distant metastases able to take up 131I
but with progression during 12–18 months after the last
131I treatment
3. Persistence of disease after administration of cumulative
activity of 600 mCi 131I without any evidence of clinical
benefit
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Response Evaluation Criteria in Solid Tumors
(RECIST)
PROGRESSIVE DISEASE (PD)
Increase 20% from baseline of the targetlesions or the appearance of new lesions
Eisenhauer et al. Europ J Cancer, 2009
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• Surgery (especially for isolated lesions or when thedisease is confined to the neck)
• External radiotherapy (palliative, pain control for bonelesions)
• Whole brain irradiation (for stabilization of multiplemetastases)
• Intra-arterial embolization (especially for liver metastases)
• Radiofrequency ablation (lung, bone, liver, local disease)
• Pamidronate IV (multiple bone lesions)
• Endobronchial laser ablation (to maintain vital functions)
Local treatments
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A B
THERMOABLATION
Before After
LIV
ER
C D
PAR
AT
RA
CH
EA
L
RE
CU
RR
EN
CE
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stable valueImaging: stable disease
Wait and see
Imaging: progression of the disease at multiple sites
Time to treat
Increasing values
More frequent imaging controls (every 3 months)
When to treat ?
Serum Tg or CT
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dabrafenib (BRAF inhibitor) and trametinib (MEK inhibitor)
Subbiah V1
Subbiah V et al, JCO 2018
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20 monthsvs 6 mths
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19% vs 47% by Landa et al
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FOR THE NEXT FUTURE
Tyrosine kinase selective drugs: monotarget
Loxo 292 (RET inhibitor)
Blue 669 (RET inhibitor)
Larotrectinib (TRK inhibitor)
Entrectinib (TRK, ROS e ALK fusions inhibitor)
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L Wirth, ATA 2018
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Larotectinib is a specific TRK inhibitor
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CONCLUSIONS 1
A not negligible % of thyroid cancer patients have anadvanced disease that requires systemic therapy
For the treatment of de-DTC and PDTC two drugs havealready been approved (sorafenib and lenvatinib)
Several and important side effects have been reportedand only advanced and progressive cases, according toRECIST, should be treated with TKI
At the moment there are no evidence of a positiveimpact on the overall survival with the exception oflenvatinib in FTC and in older patients.
Side effects mut be known by doctors, early identifiedand declared by patients to immediately counteregulatewith adequate procedures.
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THANK YOU FOR YOUR ATTENTION
AIT 3-5 DICEMBRE 2020