Phase 1/2 trial of neladalkib (NVL-655) — Nuvalent's investigational ALK-selective, TRK-sparing fourth-generation TKI — in advanced ALK-positive NSCLC after prior ALK TKI therapy. Updated efficacy data in 253 TKI-pretreated patients presented at ASCO 2026; NDA submitted with FDA Priority Review and a PDUFA target action date of November 27, 2026.
2026
ASCO
ANNUAL MEETING
ALKOVE-1:
Efficacy and safety of neladalkib in patients
with advanced ALK+ NSCLC
Jessica J. Lin1, Enriqueta Felip2, Byoung Chul Cho³, Benjamin Besse⁴, Geoffrey Liu⁵, Lorenza Landi6,
Luis G. Paz-Ares⁷, Chiara Bennati⁸, Aurelie Swalduz9, Sanjay Popat¹⁰, Misako Nagasaka¹¹, Joshua E. Reuss¹²,
Christina S. Baik¹³, Julien Mazieres¹⁴, Melissa Johnson¹⁵, Adrianus Johannes de Langen¹⁶, Ji-Youn Han¹⁷,
Malinda Itchins¹⁸, Viola W. Zhu¹⁹, Alexander Drilon20
Mass General Brigham Cancer Institute, Boston, MA, USA; Vall d'Hebron University Hospital and Vall d'Hebron Institute of Oncology Barcelona, Spain; Yonsei Cancer Center, Seoul, Republic of
Korea; Paris Saclay University, Gustave Roussy, Villejuif, France: Princess Margaret Hospital, Toronto, Ontario, Canada "Istituto Nazionale Tumori Regina Elena, IRCCS, Rome, Italy: Hospital
Universitario 12 de Octubre, Madrid, Spain; "Ospedale Santa Maria Delle Croci, Ravenna, Italy: Centre Leon Berard, Lyon, France; "Lung Unit, Royal Marsden Hospital, London, United Kingdom;
"University of California Irvine Medical Center, Orange, CA, USA; Georgetown Lombardi Comprehensive Cancer Center, Washington, D.C., USA; Fred Hutchinson Cancer Center, Seattle, WA.
USA; "Centre Hospitalier de Toulouse, Toulouse, France: Sarah Cannon Research Institute Oncology Partners, Nashville, TN. USA; Department of Thoracic Oncology, Antoni van Leeuwenhoek
hospital - Netherlands Cancer Institute, Amsterdam, The Netherlands; National Cancer Center, Goyang, Korea "Royal North Shore Hospital, Sydney, Australia; Nuvalent, Inc., Cambridge, MA,
USA; Memorial Sloan Kettering Cancer Center and Weill Cornell Medical Center, New York, NY, USA
2026 ASCO
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PRESENTED BY: Jessica J. Lin, Mass General Brigham Cancer Institute, Boston, MA, USA
ASCO
CLINICAL ONCOLOGY
ANNUAL MEETING
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KNOWLEDGE CONQUERS CANCER
---
ALKOVE-1: Objective Response in ALK TKI-Pretreated Patients
Advanced ALK+
Any prior ALK TKI a
Lorlatinib-naive
Lorlatinib-experienced
NSCLC
(1-5 prior ALK TKIs
(1-3 prior ALK TKIs
(1-5 prior ALK TKIs
RECIST v1.1 by
± chemotherapy)
+ chemotherapy)
± chemotherapy)
BICR
N = 253
N 63
N = 190
Prior alectinib only + chemotherapy:
ORR = 48% (21/44, 5% CR)
ORR, % (n/N)
31% (79/253)b
46% (29/63)
26% (50/190)ᵇ
[95% CI]
[26, 37]
[33, 59]
[20, 33]
≥2 prior ALK TKIs + chemotherapy:
ORR = 28% (56/198)
CR, % (n/N)
2% (6/253) c
5% (3/63) d
2% (3/190) d
Median duration of follow-up of 11.3 months b Includes 2 single-timepoint PR pending confirmation for ongoing patients.
Includes 2 single-timepoint CR pending confirmation in ongoing patients with prior confirmed PR. if Includes 1 single-timepoint
CR pending confirmation in ongoing patient with prior confirmed PR.
Lorlatinib-naïve + chemotherapy
60
11171N: V11B0L
1 Prior ALK TKI (alectinib)
40
Best % change in target lesions
111717;L1196M
1 Prior ALK TKI (other)
20
11171N
11171N
D1203N:
11171N
G1202R
G1202R
L1196Q
V1100L
G1202R
G1202R
111715
G1202R
G1202R
G1202R
G1202R
V1180L
G1202R
2 Prior ALK TKIs
0
-20
3 Prior ALK TKIs
-40
+ Prior platinum
60
chemotherapy
-80
Secondary ALK mutations
listed above the column
-100
PD PD PD PD PD SD NE so so SD SD so SD NE so so SD SD so so SD SD SD SD SD PR SD PR PR PR PR PR 5D PR PR PR PR PR PR PR PR SD PR PR PR PR PR WCR PR PR PR PR PR PR PR CR CR
BICR, blinded independent central review; CI, confidence interval; CR, complete response; NE, not evaluable; ORR, objective response rate; PD, progressive disease; PR, partial response; SD, stable disease;
TKI, tyrosine kinase inhibitor.
2026 ASCO
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---
ALKOVE-1 Preliminary Data:
TKI-Naïve Patients with Advanced ALK+ NSCLC
ALK TKI-naïve, BICR
Response-evaluable
CNS Response-evaluable
ALK TKI-naïve, BICR
N 44
N=9
ORR, % (n/N)
86% (38/44)
IC-ORR, % (n/N)
78% (7/9)
CR, % (n/N)
9% (4/44) b
IC-CR, % (n/N)
44% (4/9)
% DOR ≥ 12 months [95% CI] c
91% [70, 98]
IC-DOR
No CNS progression events
among intracranial responders
DOR range
1.7+ to 14.8+ months
IC-DOR range
3.1+ to 7.0+ months
a Includes 2 single-timepoint PR pending confirmation for ongoing patients. b Includes 1 single-timepoint
CR pending confirmation in ongoing patient with prior confirmed PR. Analyses of DOR based on
if Includes 1 single-timepoint IC-CR pending confirmation in ongoing patient with prior
Kaplan-Meier estimates
confirmed IC-PR.
60
ALK TKI-naïve + chemotherapy
40
No prior chemotherapy
Prior platinum chemotherapy
Best % change in target lesions
20
0
-20
-40
-60
-80
-100
SD SD uPR uPR SD PR PR PR SD PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR SD PR PR PR PR PR CRCR CR CR
BICR blinded independent central review, CI, confidence interval CNS central nervous system, CR, complete response, DOR duration of response, ORR, objective response rate, PD. progressive disease, PR. partial response, SD, stable disease, TKI fyrosine knase inhibitor
2026 ASCO
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PRESENTED BY: Jessica J. Lin, Mass General Brigham Cancer Institute, Boston, MA, USA
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---
ALKOVE-1: Summary
In these data from the ALKOVE-1 study of TKI-pretreated patients with advanced ALK+ NSCLC,
neladalkib demonstrated a clinical profile consistent with its design goals:
Meaningful clinical responses for TKI-pretreated patients (range 1-5 prior ALK TKI) across both lorlatinib-naive
(ORR = 46%; median DOR not reached, DOR ≥12 months for 80%) and lorlatinib-experienced patients (ORR = 26%;
median DOR of 17.6 months)
Intracranial activity, including in patients who previously received lorlatinib, a population where no other TKI has shown
activity (lorlatinib-naïve: IC-ORR = 63%; DOR ≥12 months for 92%; lorlatinib-experienced: IC-ORR = 21%; DOR ≥12
months for 55%)
Activity in patients with ALK G1202R single or compound resistance mutations (lorlatinib-naïve: ORR = 83%,
DOR ≥12 months for 77%; lorlatinib-experienced: ORR = 63%; DOR ≥12 months for 81%)
Generally well-tolerated with low rates of dose reduction (17%) and treatment discontinuation (5%) due to TEAEs,
consistent with its ALK-selective, TRK-sparing design
Encouraging efficacy and safety data support investigation in the front-line setting in the
ongoing phase 3 ALKAZAR trial (NCT06765109)
2026 ASCO
PRE SENTED BY: Jessica J. Lin, Mass General Brigham Cancer Institute, Boston, MA, USA
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2026 ASCO
ANNUAL MEETING
a ASCO
KT6
ALKOVE-1: Efficacy and safety of neladalkib in patients
with advanced ALK+ NSCLC
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ANNUAL MEETING
2026
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ANNUAL
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---
ALKOVE-1: Pivotal TKI-Pretreated Patient Population
Data cut-off: August 29, 2025
Total Enrolled: N = 781
Any ALK+ solid tumor, any dose
Phase 1 + Phase 2 pooled
Safety Population: N = 656
Advanced ALK+ NSCLC
Received neladalkib at 150 mg QD
Efficacy Population:
ALK TKI-Pretreated a
Preliminary Data
with measurable disease by BICR
TKI-Naïve b
with measurable disease by BICR
Treated by September 30, 2024
(> 6 months DOR follow up)
Treated by
August 29, 2025
n = 253
n = 44
a BICR, NTRK Includes blinded fusion 25 patients (n independent 1), with FGFR3 other central fusion oncogenic review; (n = 1). DOR, driver(s) ["One duration patient in addition of had response; both to ALK: KRAS NSCLC, MET G12C amplification non-small and BRAF (n cell mutations. : lung 9), KRAS cancer; G12C No QD, patients (n once = 4*), daily; with MET other TKI, mutation oncogenic tyrosine (n kinase # driver(s) 4), BRAF inhibitor. in mutation addition (1) to : ALK. 4°), RET fusion (n : 2), ER882 mutation in : 1),
2026 ASCO
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CHECK
KNOWLEDGE CONQUERS CANCER
---
ALKOVE-1: Objective Response in ALK TKI-Pretreated Patients
Any prior ALK TKI .
Lorlatinib-naive
Lorlatinib-experienced
Advanced ALK+
(1-5 prior ALK TKIs
(1-3 prior ALK TKIs
(1-5 prior ALK TKIs
NSCLC
: chemotherapy)
2 chemotherspy)
: chemotherapy)
Prior alectinib only : chemotherapy
RECIST v1.1 by
N 253
N 63
N = 190
BICR
ORR a 48% (21/44, 5% CR)
31% (79/253)
46% (29/63)
26% (50/190)*
ORR, % (n/N)
22 prior ALK TXIs : chemotherapy:
(95% CI]
(26, 37]
(33, 59)
(20, 33]
ORR . 28% (56/198)*
2% (6/253)
5% (3/63)
2% (3/190)*
CR, % (n/N)
Median includes duration 2 single-timepoint CR pending confirmation in ongoing patients with prior confirmed PR 4 Includes 1 single-timepoint
of follow-up of 11.3 months. includes 2 single-Imepoint PR pending confirmation for ongoing patients.
CR pending confirmation in ongoing patient with prior confirmed PR.
Lorlatinib-naive * chemotherapy
1 Prior ALK TK) (sections)
8
VITAN
I
1 Prior ALK TX) (other)
5
20
I
2 Prior ALK TKis
Best % change in target lesions
) Prior ALK nos
0
Prior patrum
20
chemotheracy
40
Secondary ALK estations
40
listed above the -
so
BICR, binded -10 PO Independent central review, CL, confidence intervet CR, complete response; NE, not evaluable, ORR, objective response - PO. progressive PR, partal response so, - - ASCO
TKL tyrosine unase inhibitor.
HE SENTED - Jessica J. Lin, Mass General Brigham Cancer Institute, Boston, MA USA
- - -
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JBL
---
ALKOVE-1 Preliminary Data:
TKI-Naïve Patients with Advanced ALK+ NSCLC
ALK TKI-naive, BICR
Response-evaluable
ALK TKI-naive, BICR
CNS Response-evaluable
N 44
was
ORR, % (n/N)
86% (38/44)*
IC-ORR, % (n/N)
78% (779)
CR, % (n/N)
9% (4/44)
IC-CR, % (r/N)
44% (4/9)*
% DOR 2 12 months (95% CI]<
91% [70, 98]
No CNS progression events
IC-DOR
among Intracrantal responders
DOR range
1.7+ to 14.8+ months
IC-DOR range
3.1+ to 7.0+ months
. includes 2 single-timepoint PR pending confirmation for ongoing patients Fincludes 1. single-timeport
CR pending confirmation in ongoing patient with prior confirmed PR Analyses of DOR based on
Findures 1 C-CR pending contenation / ingrang papers - you
Kaplar-Meier estimates.
suittmed C-PR,
8
ALK TKI-naive : chemotherapy
8
No prior chemotherapy
Prior platinum chemotherapy
Best % change in target lesions
20
0
20
$
60
80
100
50
so PSI PR PM to PR
BICK canded respendent rever, a reserve CNE person - your or, complete response DOR, - / - CASE a importer - PO - - FR - - No. - - - - - -
ASCO
- -
PRESENTED ST. Jessica J. Lin, Mass General Brigham Cancer institute, Boston, MA, USA
- -
2026 ASCO
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2026
ASCO®
ANNUAL MEETING
ALKOVE-1:
Efficacy and safety of neladalkib in patients
with advanced ALK+ NSCLC
Jessica J. Lin1, Enriqueta Felip², Byoung Chul Cho³, Benjamin Besse⁴, Geoffrey Liu⁵, Lorenza Landi⁶,
Luis G. Paz-Ares⁷, Chiara Bennati⁸, Aurelie Swalduz9, Sanjay Popat¹⁰, Misako Nagasaka¹¹, Joshua E. Reuss¹²,
Christina S. Baik¹³, Julien Mazieres¹⁴, Melissa Johnson15, Adrianus Johannes de Langen¹⁶, Ji-Youn Han17,
Malinda Itchins¹⁸, Viola W. Zhu¹⁹, Alexander Drilon20
Mass General Brigham Cancer Institute, Boston, MA, USA; Vall d'Hebron University Hospital and Vall d'Hebron Institute of Oncology, Barcelona, Spain; 3Yonsei Cancer Center, Seoul, Republic of
Korea; Paris Saclay University, Gustave Roussy, Villejuif, France; Princess Margaret Hospital, Toronto, Ontario, Canada; PIstituto Nazionale Tumori Regina Elena, IRCCS, Rome, Italy; Hospital
Universitario 12 de Octubre, Madrid, Spain; SOspedale Santa Maria Delle Croci, Ravenna, Italy; Centre Léon Berard, Lyon, France; 10Lung Unit, Royal Marsden Hospital, London, United Kingdom;
"University of California Irvine Medical Center, Orange, CA, USA; Georgetown Lombardi Comprehensive Cancer Center, Washington, D.C., USA; 13Fred Hutchinson Cancer Center, Seattle, WA,
USA; "Centre Hospitalier de Toulouse, Toulouse, France; Sarah Cannon Research Institute Oncology Partners, Nashville, TN, USA; 16Department of Thoracic Oncology, Antoni van Leeuwenhoek
hospital - Netherlands Cancer Institute, Amsterdam, The Netherlands; 17National Cancer Center, Goyang, Korea; ®Royal North Shore Hospital, Sydney, Australia; 19Nuvalent, Inc., Cambridge, MA,
USA; 20Memorial Sloan Kettering Cancer Center and Weill Comell Medical Center, New York, NY, USA
2026 ASCO
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KNOWLEDGE CONQUERS CANCER
---
ALKOVE-1: Pivotal TKI-Pretreated Patient Population
Data cut-off: August 29, 2025
Total Enrolled: N = 781
Any ALK+ solid tumor, any dose
Phase 1+ Phase 2 pooled
Safety Population: N = 656
Advanced ALK+ NSCLC
Received neladalkib at 150 mg QD
Efficacy Population:
Preliminary Data
ALK TKI-Pretreated a
TKI-Naive b
with measurable disease by BICR
with measurable disease by BICR
Treated by September 30, 2024
Treated by
(2 6 months DOR follow up)
August 29, 2025
n = 253
n = 44
BICR, bilnded Independent central review; DOR, duration of response; NSCLC, non-small cell lung cancer; QD, once daily; TKI, tyrosine kinase inhibitor.
a Includes 25 patients with other oncogenic driver(s) in addition to ALK: MET amplification (n = 9), KRAS G12C (n = 4*), MET mutation (n = 4), BRAF mutation (n = 4*), RET fusion (n - 2), ERBB2 mutation (n = 1),
NTRK fusion (n = 1), FGFR3 fusion (n 0 1). [*One patient had both KRAS G12C and BRAF mutations.] b No patients with other oncogenic driver(s) in addition to ALK.
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CLINICAL CHICOLOGY
KNOWLEDGE CONQUERS CANCER
---
ALKOVE-1: Objective Response in ALK TKI-Pretreated Patients
Advanced ALK+
Any prior ALK TKI a
Lorlatinib-naive
Lorlatinib-experienced
NSCLC
(1-5 prior ALK TKIs
(1-3 prior ALK TKIs
(1-5 prior ALK TKIs
RECIST v1.1 by
* chemotherapy)
+ chemotherapy)
* chemotherapy)
BICR
N 253
N 63
N 190
Prior alectinib only + chemotherapy:
ORR = 48% (21/44, 5% CR)
ORR, % (n/N)
31% (79/253)b
46% (29/63)
26% (50/190)b
[95% CI]
[26, 37]
[33, 59]
>2 prior ALK TKIs + chemotherapy:
[20, 33]
ORR = 28% (56/198)b
CR, % (n/N)
2% (6/253) c
5% (3/63)
2% (3/190) d
a
Median duration of follow-up of 11.3 months. b Includes 2 single-timepoint PR pending confirmation for ongoing patients.
c
Includes 2 single-timepoint CR pending confirmation in ongoing patients with prior confirmed PR. d Includes 1 single-timepoint
CR pending confirmation in ongoing patient with prior confirmed PR.
Lorlatinib-naive + chemotherapy
50
11171N;V1100L
1 Prior ALK TKI (alectinib)
40
20
G1202R
196M (1171T;L1100M
11171N
G1202R
G1202R
G1202R
G1202R
G1202R
1 Prior ALK TKI (other)
Best % change in target lesions
11171N
11171N
D1203N;411717
L1196Q
V1100L
G12028
111715
G1202R
G1202R
G1202R
V1100L
G1202N
1
2 Prior ALK TKIs
0
-20
3 Prior ALK TKIs
40
+ Prior platinum
60
chemotherapy
80
Secondary ALK mutations
listed above the column
-100
PO
PO
as
2
an
PO
10
90
PM
50
PR
PR
PH
PR
PR
PR
PR
PR
PA
PR
PR
PR
PR
PR
OR
FR
PR
PR
PR
PR
PR
PR
CR
CR
BICR, blinded Independent central review; CI, confidence Interval; CR, complete response; NE, not evaluable; ORR, objective response rate; PD, progressive disease; PR, partial response; SD, stable disease;
TKI, tyrosine kinase Inhibitor.
2026 ASCO
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---
ALKOVE-1: CNS Activity
TKI-Pretreated
Any prior
Lorlatinib-
Lorlatinib-
CNS Response-
ALK TKI
naive
experienced
Evaluable a
Kaplan-Meier Plot of IC-DOR
+ chemotherapy
+ chemotherapy
+ chemotherapy
RECIST 1.1, BICR
TKI-Pretreated CNS Response-Evaluable
N 92
N 24
N 68
[95% CI]
100
92%
92%
92%
IC-ORR, % (n/N)
32% (29/92) b
63% (15/24)
21% (14/68)
81%
[22, 42]
[41, 81]
[12, 32]
75
71%
71%
IC-CR, % (n/N)
13% (12/92) c
21% (5/24)c
10% (7/68)
Patients in Response (%)
71%
50
55%
55%
+,+
IC-DOR ≥ 6 months d
81% [59, 91]
92% (57, 99]
71% [41, 88]
IC-DOR ≥ 12 months d
71% [48, 85]
92% [57, 99]
55% [26, 77]
25
Emerging modians of (+) 21 6 months (95% CL 10. 1, NE) and
IC-DOR ≥ 18 months d
71% [48, 85]
92% [57, 99]
55% [26, 77]
(+) 21;6 months (95% OI: 21.6, NE) continue to mature
0
Includes patients with measurable (25mm) CNS lesions by BICR at baseline and no brain radiation within 2
0
6
12
18
24
months before first dose of neladalkib. b Includes 2 single-timepoint IC-PR pending confirmation in ongoing
Months
At Risk
patients. c Includes 1 single-timepoint IC-CR pending confirmation in ongoing patient with prior confirmed IC-
PR. d Analyses of DOR based on Kaplan-Meier estimates.
Any prior
27
19
10
4
2
CNS response-evaluable after prior alectinib only : chemotherapy: IC-ORR B 60% (9/15; 1 IC-uPR);
Loriatinib-
13
9
naive
4
2
1
no intracranial progressors among confirmed intracranial responders.
Lorlatinib-
CNS response-evaluable after 2 2 prior ALK TKIs * chemotherapy: IC-ORR = 25% (19/75; 1 IC-uPR);
14
10
experienced
6
2
1
IC-DOR at 6 months = 78% (95% Cl: 51, 91) and at 12 and 18 months = 66% (95% Cl: 39, 83).
BICR, blinded Independent central review; CI, confidence Interval; CNS, central nervous system; CR, complete response; DOR, duration of response; IC, Intracranial; NE, not estimable; NR, not reached;
ORR, objective response rate; TKI, tyrosine kinase inhibitor; uPR, unconfirmed partial response.
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ALKOVE-1: Objective Response in ALK TKI-Pretreated Patients
Advanced ALK+
Any prior ALK TKI a
Lorlatinib-naive
Lorlatinib-experienced
NSCLC
(1-5 prior ALK TKIs
(1-3 prior ALK TKIs
(1-5 prior ALK TKIs
RECIST v1.1 by
+ chemotherapy)
+ chemotherapy)
+ chemotherapy)
BICR
N 253
N 63
N 190
Prior alectinib only + chemotherapy:
ORR = 48% (21/44, 5% CR)
ORR, % (n/N)
31% (79/253)
46% (29/63)
26% (50/190)ᵇ
[95% CI]
≥2 prior ALK TKIs + chemotherapy:
[26, 37]
[33, 59]
[20, 33]
ORR = 28% (56/198)
CR, % (n/N)
2% (6/253) c
5% (3/63) d
2% (3/190) d
a
Median duration of follow-up of 11.3 months. b Includes 2 single-timepoint PR pending confirmation for ongoing patients.
c Includes 2 single-timepoint CR pending confirmation in ongoing patients with prior confirmed PR. d Includes 1 single-timepoint
CR pending confirmation in ongoing patient with prior confirmed PR.
Lorlatinib-naive + chemotherapy
60
11171N: V1180L
1 Prior ALK TKI (alectinib)
40
20
11171N
H171N
.1 1 1 M171T;L1196M
1 D1203N; H1171T
G1202R
G1202R
1 Prior ALK TKI (other)
Best % change in target lesions
G1202R
11171N
L1196Q
V1180L
G1202R
G1202R
111715
G1202R
G1202R
G1202R
G1202R
G1202R
V1180L
G1202R
2 Prior ALK TKIs
0
-20
3 Prior ALK TKIs
40
+ Prior platinum
-60
chemotherapy
-80
Secondary ALK mutations
listed above the column
100
PD
PD
PD
PD
PD
so
NE
SD
so
so
so
so
SD
NE
so
SD
so
so
so
so
so
so
so
so
PR
so
PR
PR
PR
PR
so
PR
PR
PR
PR
PR
PR
PR
PR
so
PR
PR
PR
PR
PR
VCR
PR
PR
PR
PR
PR
PR
PR
CR
CR
BICR, blinded independent central review; CI, confidence interval; CR, complete response; NE, not evaluable; ORR, objective response rate; PD, progressive disease; PR, partial response; SD, stable disease;
TKI, tyrosine kinase Inhibitor.
2026 ASCO
PRESENTED BY: Jessica J. Lin, Mass General Brigham Cancer Institute, Boston, MA, USA
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ASCO
ASCO
ASCO
ASCO
ASCC
---
ALKOVE-1: Duration of Response
TKI-Pretreated
Any prior
Lorlatinib-
Lorlatinib-
Kaplan-Meler Plot of DOR
Advanced ALK+
ALK TKI
naive
experienced
ALK TKI-Pretreated
NSCLC
(1-5 prior ALK TKI
(1-3 prior ALK TKI
(1-5 prior ALK TKI
* chemotherapy)
* chemotherapy)
* chemotherapy)
Kaplan-Meier Estimate
100
N 77
N 29
N 48
89%
80%
DOR ≥ 6 months
76%
89%
68%
75
(95% CI]
(64, 84]
[69, 96]
(52, 80]
Patients in Response (%)
60%
50
76%
DOR ≥ 12 months
64%
80%
54%
68%
64%
54%
53%
(95% CI]
(51, 75]
[58, 91]
[38, 68]
47%
25
DOR > 18 months
53%
60%
47%
[95% CI]
[34, 68]
(19, 85]
[27, 64]
0
0
6
12
18
24
Months
Median DOR [95% CI]
NR (14.5, NE]
NR [14.5, NE]
17.6 [6.9, NE]*
At Risk
Any prior
77
48
20
8
2
Emerging median continues to mature.
Lorlatinib-
29
naive
21
7
2
1
Prior alectinib only * chemotherapy: median DOR - NR (95% CI: NE, NE).
Lorlatinib-
48
27
>2 prior ALK TKIs : chemotherapy: Emerging median DOR of 17.6 months (95% CI: 7.1, NE)
experienced
13
6
1
continues to mature.
CI, confidence interval; DOR, duration of response; NE, not estimable; NR, not reached; TKI, tyrosine kinase inhibitor.
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ASCO
ASCO
ASCO
ASCO
---
ALKOVE-1: CNS Activity
TKI-Pretreated
Any prior
Lorlatinib-
Lorlatinib-
CNS Response-
ALK TKI
naive
experienced
Evaluable a
Kaplan-Meier Plot of IC-DOR
+ chemotherapy
+ chemotherapy
+ chemotherapy
RECIST 1.1, BICR
TKI-Pretreated CNS Response-Evaluable
N 92
N 24
N 68
[95% CI]
100
92%
92%
92%
IC-ORR, % (n/N)
32% (29/92) b
63% (15/24)b
21% (14/68)
81%
[22, 42]
[41, 81]
[12, 32]
75
71%
71%
IC-CR, % (n/N)
13% (12/92) c
21% (5/24) c
10% (7/68)
Patients in Response (%)
71%
50
55%
55%
#,*
IC-DOR ≥ 6 months d
81% [59, 91]
92% [57, 99]
71% [41, 88]
IC-DOR ≥ 12 months d
71% [48, 85]
92% [57, 99]
55% [26, 77]
25
Emerging medians of (+) 21 6 months (95% CI: 10. NE) and
IC-DOR ≥ 18 months d
71% [48, 85]
92% [57, 99]
55% [26, 77]
(+) 21j6 months (95% Of: 21.6, NE) continue to mature
0
a Includes patients with measurable (>5mm) CNS lesions by BICR at baseline and no brain radiation within 2
0
6
12
18
24
months before first dose of neladalkib. b Includes 2 single-timepoint IC-PR pending confirmation in ongoing
Months
At Risk
patients. Includes 1 single-timepoint IC-CR pending confirmation in ongoing patient with prior confirmed IC-
PR. d Analyses of DOR based on Kaplan-Meier estimates.
Any prior
27
19
10
4
2
CNS response-evaluable after prior alectinib only + chemotherapy: IC-ORR = 60% (9/15; 1 IC-uPR);
Lorlatinib-
13
naive
9
4
2
1
no intracranial progressors among confirmed intracranial responders.
Lorlatinib-
CNS response-evaluable after ≥2 prior ALK TKIs * chemotherapy: IC-ORR = 25% (19/75; 1 IC-uPR);
14
10
experienced
6
2
1
IC-DOR at 6 months = 78% (95% Cl: 51, 91) and at 12 and 18 months = 66% (95% CI: 39, 83).
BICR, blinded independent central review; CI, confidence Interval; CNS, central nervous system; CR, complete response; DOR, duration of response; IC, Intracranial; NE, not estimable; NR, not reached;
ORR, objective response rate; TKI, tyrosine kinase inhibitor; uPR, unconfirmed partial response.
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ALKOVE-1: Safety in Advanced ALK+ NSCLC
Dose reduction due to TEAE: 17%
All Treatment-Emergent Adverse Events (TEAEs) in ≥ 15%
Most common (≥1% of patients):
of TKI-Naïve or TKI-Pretreated Patients with Advanced
ALT increased (10%), AST increased (8%) a
ALK+ NSCLC Receiving Neladalkib 150 mg QD (N = 656)
Discontinuation due to TEAE: 5%
Preferred Term
Any Grade
Grade ≥3
Most common (≥1% of patients):
ALT increased (2%), AST increased (1%)
ALT increased
47%
20%
Most common TEAE were transaminase elevations
AST increased
44%
16%
Most were asymptomatic lab abnormalities, and observed to be low-
Constipation
28%
0.2%
grade, transient, and reversible with dose interruptions or reductions
Preliminary data suggest increased incidence in less heavily
Dysgeusia
23%
0
pre-treated patients
Peripheral edema
18%
0.3%
Enhanced monitoring and prompt dose interventions implemented in
the protocol for the Phase 3 ALKAZAR trial
Cough
16%
0.5%
Nausea
Overall safety profile consistent with avoiding TRK-related
16%
0.8%
neurotoxicities
Data pooled for patients in the Phase 1 or Phase 2 portion of ALKOVE-1 with a data cut-off of August 29, 2025. Patients received at least 1 dose of neladalkib at RP2D of 150 mg QD with median duration of
exposure of 6.0 months (range: 0.1, 28.4). ALT, alanine aminotransferase; AST, aspartate aminotransferase; NSCLC, non-small cell lung cancer; RP2D, recommended phase 2 dose; QD, once-daily; TEAE, treatment
emergent adverse event; TKI, tyrosine kinase inhibitor.
a Not mutually exclusive: Dose reduction due to any transaminase elevation observed in 11% of patients.
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ALKOVE-1 Preliminary Data:
TKI-Naïve Patients with Advanced ALK+ NSCLC
ALK TKI-naive, BICR
Response-evaluable
CNS Response-evaluable
ALK TKI-naïve, BICR
N = 44
N=9
ORR, % (n/N)
86% (38/44)ᵃ
IC-ORR, % (n/N)
78% (7/9)
CR, % (n/N)
9% (4/44) b
IC-CR, % (n/N)
44% (4/9)
% DOR ≥ 12 months [95% CI]
91% [70, 98]
IC-DOR
No CNS progression events
among intracranial responders
DOR range
1.7+ to 14.8+ months
IC-DOR range
3.1+ to 7.0+ months
a Includes 2 single-timepoint PR pending confirmation for ongoing patients. b Includes 1 single-timepoint
CR pending confirmation in ongoing patient with prior confirmed PR. Analyses of DOR based on
d Includes 1 single-timepoint IC-CR pending confirmation in ongoing patient with prior
Kaplan-Meier estimates.
confirmed IC-PR.
60
ALK TKI-naïve ± chemotherapy
40
No prior chemotherapy
Prior platinum chemotherapy
Best % change in target lesions
20
0
-20
-40
-60
-80
-100
SD SD uPR uPR SD PR PR PR SD PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR SD PR PR PR PR PR CRCR CR CR
BICR blinded independent central review, CI, confidence interval CNS central nervous system CR. complete response, DOR duration of response ORR objective response rate PD progressive disease PR. partial response SD stable disease TKI. tyrosine kinase inhibitor
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---
ALKOVE-1: Safety in Advanced ALK+ NSCLC
Dose reduction due to TEAE: 17%
All Treatment-Emergent Adverse Events (TEAEs) in > 15%
Most common (≥1% of patients):
of TKI-Naïve or TKI-Pretreated Patients with Advanced
ALT increased (10%), AST increased (8%) a
ALK+ NSCLC Receiving Neladalkib 150 mg QD (N = 656)
Discontinuation due to TEAE: 5%
Preferred Term
Any Grade
Grade ≥3
Most common (≥1% of patients):
ALT increased (2%), AST increased (1%)
ALT increased
47%
20%
Most common TEAE were transaminase elevations
AST increased
44%
16%
Most were asymptomatic lab abnormalities, and observed to be low-
Constipation
28%
0.2%
grade, transient, and reversible with dose interruptions or reductions
Preliminary data suggest increased incidence in less heavily
Dysgeusia
23%
0
pre-treated patients
Peripheral edema
18%
0.3%
Enhanced monitoring and prompt dose interventions implemented in
the protocol for the Phase 3 ALKAZAR trial
Cough
16%
0.5%
Overall safety profile consistent with avoiding TRK-related
Nausea
16%
0.8%
neurotoxicities
Data pooled for patients in the Phase 1 or Phase 2 portion of ALKOVE-1 with a data cut-off of August 29, 2025. Patients received at least 1 dose of neladalkib at RP2D of 150 mg QD with median duration of
exposure of 6.0 months (range: 0.1, 28.4). ALT, alanine aminotransferase; AST, aspartate aminotransferase; NSCLC, non-small cell lung cancer; RP2D, recommended phase 2 dose; QD, once-daily; TEAE, treatment
emergent adverse event; TKI, tyrosine kinase inhibitor.
a Not mutually exclusive: Dose reduction due to any transaminase elevation observed in 11% of patients.
2026 ASCO
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ALKOVE-1: Summary
In these data from the ALKOVE-1 study of TKI-pretreated patients with advanced ALK+ NSCLC,
neladalkib demonstrated a clinical profile consistent with its design goals:
Meaningful clinical responses for TKI-pretreated patients (range 1-5 prior ALK TKI) across both lorlatinib-naive
(ORR = 46%; median DOR not reached, DOR ≥12 months for 80%) and lorlatinib-experienced patients (ORR = 26%;
median DOR of 17.6 months)
Intracranial activity, including in patients who previously received lorlatinib, a population where no other TKI has shown
activity (lorlatinib-naïve: IC-ORR = 63%; DOR ≥12 months for 92%; lorlatinib-experienced: IC-ORR = 21%; DOR ≥12
months for 55%)
Activity in patients with ALK G1202R single or compound resistance mutations (lorlatinib-naïve: ORR = 83%,
DOR ≥12 months for 77%; lorlatinib-experienced: ORR = 63%; DOR ≥12 months for 81%)
Generally well-tolerated with low rates of dose reduction (17%) and treatment discontinuation (5%) due to TEAEs,
consistent with its ALK-selective, TRK-sparing design
Encouraging efficacy and safety data support investigation in the front-line setting in the
ongoing phase 3 ALKAZAR trial (NCT06765109)
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ASCC
ASCC
---
2026
ASCO
ANNUAL MEETING
ALKOVE-1:
Efficacy and safety of neladalkib in patients
with advanced ALK+ NSCLC
Jessica J. Lin1, Enriqueta Felip², Byoung Chul Cho³, Benjamin Besse⁴, Geoffrey Liu⁵, Lorenza Landi⁶,
Luis G. Paz-Ares⁷, Chiara Bennati⁸, Aurelie Swalduz⁹, Sanjay Popat¹⁰, Misako Nagasaka¹¹, Joshua E. Reuss¹²,
Christina S. Baik¹³, Julien Mazieres¹⁴, Melissa Johnson¹⁵, Adrianus Johannes de Langen¹⁶, Ji-Youn Han¹⁷,
Malinda Itchins¹⁸, Viola W. Zhu¹⁹, Alexander Drilon20
Mass General Brigham Cancer Institute, Boston, MA, USA; Vall d'Hebron University Hospital and Vall d'Hebron Institute of Oncology, Barcelona, Spain; 3Yonsei Cancer Center, Seoul, Republic of
Korea; Paris Saclay University, Gustave Roussy, Villejuif, France; Princess Margaret Hospital, Toronto, Ontario, Canada; 61stituto Nazionale Tumori Regina Elena, IRCCS, Rome, Italy; Hospital
Universitario 12 de Octubre, Madrid, Spain; Ospedale Santa Maria Delle Croci, Ravenna, Italy; Centre Leon Bérard, Lyon, France; 10Lung Unit, Royal Marsden Hospital, London, United Kingdom;
"University of California Irvine Medical Center, Orange, CA, USA; 12Georgetown Lombardi Comprehensive Cancer Center, Washington, D.C., USA; 13Fred Hutchinson Cancer Center, Seattle, WA,
USA; 14Centre Hospitalier de Toulouse, Toulouse, France; Sarah Cannon Research Institute Oncology Partners, Nashville, TN, USA; 16Department of Thoracic Oncology, Antoni van Leeuwenhoek
hospital Netherlands Cancer Institute, Amsterdam, The Netherlands; 17National Cancer Center, Goyang, Korea; 18Royal North Shore Hospital, Sydney, Australia; Nuvalent, Inc., Cambridge, MA,
USA; 20Memorial Sloan Kettering Cancer Center and Weill Cornell Medical Center, New York, NY, USA
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ALKOVE-1: A Global First-in-Human Phase 1/2 Clinical Trial of Neladalkib
in Advanced ALK-Positive NSCLC and Other Solid Tumors (NCT05384626)
PHASE 1
PHASE 2: Neladalkib 150 mg QD (RP2D)
PATIENT
PRIOR LINES
PRIOR ALK TKI
PHASE 2 ENDPOINTS
POPULATION
CHEMO/I-O
1 prior 2G (ceritinib, alectinib, or brigatinib)
0-2
Neladalkib dose
escalation
2-3 prior, any generation
0-2
(crizotinib, ceritinib, alectinib, brigatinib, or lorlatinib a)
(15 200 mg
Primary: ORR by BICR
ALK+ NSCLC
QD) in patients
1 prior 3G (lorlatinib)
≤1
Secondary: Additional
efficacy measures (DOR,
with advanced
None (TKl-naïve)
â 1
TTR, PFS, OS),
ALK+ solid
intracranial activity, overall
safety and tolerability,
tumors
Any (not eligible for other cohorts)
Any
confirmation of PK profile
Other ALK+
≥ 1 prior ALK TKI or systemic therapy
Solid Tumors
Any
(or for whom no satisfactory standard therapy exists)
Neladalkib is an investigational product and has not been approved by the FDA or any other health authority.
BICR, blinded independent central review; chemo, chemotherapy; DOR, duration of response; G, generation; I-O, immunotherapy; NSCLC non-small cell lung cancer; ORR, objective response rate; OS, overall survival;
PFS, progression-free survival; PK, pharmacokinetic; QD, once daily; RP2D, recommended phase 2 dose; TKI, tyrosine kinase inhibitor; TRK, tropomyosin-related kinase; TTR, time to response.
a Excludes patients who received lortatinib as the 1st prior ALK TKI.
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---
ALKOVE-1: Patient Population
ALK TKI-Pretreated a
ALK TKI-Pretreated a
Patient Characteristic
Efficacy Population
Treatment History
Efficacy Population
N = 253
N = 253
Age, median (range)
56 (24 83)
Prior anticancer therapy, median (range)
3 (1- 11)
Female
145 (57%)
Chemotherapy
128 (51%)
No history of smoking
167 (66%)
Prior ALK TKIs 1
Geographic region
1G crizotinib
67 (26%)
Asia Pacific
50 (20%)
2G
any 2G
240 (95%)
Europe
101 (40%)
alectinib
220 (87%)
North America
102 (40%)
brigatinib
55 (22%)
ECOG PS
ceritinib
27 (11%)
0
90 (36%)
ensartinib
3 (1%)
1
163 (64%)
3G lorlatinib
190 (75%)
Baseline CNS metastases b
101 (40%)
Lorlatinib-naive g.h
63 (25%)
Secondary ALK mutation c
91 (36%)
≥1 prior 2G
63/63 (100%)
G1202R mutation d
47 (19%)
1 ALK TKI (alectinib)
44/63 (70%)
≥2 ALK mutations e
43 (17%)
⥠2 ALK TKIs
17/63 (27%)
CNS, central nervous system; G, generation; PS, performance score; TKI, tyrosine kinase inhibitor.
Lorlatinib-experienced
190 (75%)
a Includes 25 patients with other oncogenic driver(s) in addition to ALK. Includes patients with
treated or untreated, measurable or non-measurable CNS lesions by BICR. C ALK mutations as per
≥2 ALK TKIs, including 2G and lorlatinib
177/190 (93%)
local or central testing of blood (ctDNA) or tissue. d Patients may have had other mutations in addition
to ALK G1202R. e Includes 15 patients with confirmed compound mutations (cis-allelic configuration).
≥3 ALK TKIs, including 2G and lorlatinib
69/190 (36%)
I One patient received an investigational TKI. 0 No patients received crizotinib as the only prior ALK
TKI. 46 patients received 1 prior ALK TKI only (alectinib, n = 44; brigatinib, n = 2).
2026 ASCO
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ALKOVE-1: A Global First-in-Human Phase 1/2 Clinical Trial of Neladalkib
in Advanced ALK-Positive NSCLC and Other Solid Tumors (NCT05384626)
PHASE 1
PHASE 2: Neladalkib 150 mg QD (RP2D)
PATIENT
PRIOR LINES
PRIOR ALK TKI
PHASE 2 ENDPOINTS
POPULATION
CHEMO/I-O
1 prior 2G (ceritinib, alectinib, or brigatinib)
0-2
Neladalkib dose
escalation
2-3 prior, any generation
0-2
(crizotinib, ceritinib, alectinib, brigatinib, or lorlatinib ")
(15- 200 mg
Primary: ORR by BICR
ALK+ NSCLC
QD) in patients
1 prior 3G (lorlatinib)
≤1
Secondary: Additional
efficacy measures (DOR,
with advanced
None (TKI-naive)
51
TTR, PFS, OS),
ALK+ solid
intracranial activity, overall
tumors
Any (not eligible for other cohorts)
safety and tolerability,
Any
confirmation of PK profile
Other ALK+
⥠prior ALK TKI or systemic therapy
Solid Tumors
Any
(or for whom no satisfactory standard therapy exists)
Neladalkib is an investigational product and has not been approved by the FDA or any other health authority.
BICR, blinded independent central review; chemo, chemotherapy; DOR, duration of response; G, generation; I-O, immunotherapy; NSCLC, non-small cell lung cancer; ORR, objective response rate; os, overall survival;
PFS, progression-free survival; PK, pharmacokinetic; QD, once daily; RP2D, recommended phase 2 dose; TKI, tyrosine kinase inhibitor; TRK, tropomyosin-related kinase; TTR, time to response.
a Excludes patients who received lorlatinib as the 1st prior ALK TKI.
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---
ALKOVE-1: Patient Population
ALK TKI-Pretreated
ALK TKI-Pretreated a
Patient Characteristic
Efficacy Population
Treatment History
Efficacy Population
N = 253
N = 253
Age, median (range)
56 (24 83)
Prior anticancer therapy, median (range)
3 (1- 11)
Female
145 (57%)
Chemotherapy
128 (51%)
No history of smoking
167 (66%)
Prior ALK TKIs I
Geographic region
1G crizotinib
67 (26%)
Asia Pacific
50 (20%)
2G any 2G
240 (95%)
Europe
101 (40%)
alectinib
220 (87%)
North America
102 (40%)
brigatinib
55 (22%)
ECOG PS
ceritinib
27 (11%)
0
90 (36%)
ensartinib
3 (1%)
1
163 (64%)
3G lorlatinib
190 (75%)
Baseline CNS metastases b
101 (40%)
Lorlatinib-naive g.h
63 (25%)
Secondary ALK mutation c
91 (36%)
¥1 prior 2G
63/63 (100%)
G1202R mutation d
47 (19%)
1 ALK TKI (alectinib)
44/63 (70%)
>2 ALK mutations e
43 (17%)
≥ 2 ALK TKIs
17/63 (27%)
CNS, central nervous system; G, generation; PS, performance score; TKI, tyrosine kinase inhibitor.
Lorlatinib-experienced
190 (75%)
a Includes 25 patients with other oncogenic driver(s) In addition to ALK. Includes patients with
treated or untreated, measurable or non-measurable CNS lesions by BICR. ALK mutations as per
>2 ALK TKIs, including 2G and lorlatinib
177/190 (93%)
local or central testing of blood (ctDNA) or tissue. d Patients may have had other mutations in addition
to ALK G1202R. Includes 15 patients with confirmed compound mutations (cis-allelic configuration).
≥3 ALK TKIs, including 2G and lorlatinib
69/190 (36%)
I One patient received an Investigational TKI. 0 No patients received crizotinib as the only prior ALK
TKI. 46 patients received 1 prior ALK TKI only (alectinib, n = 44; brigatinib, n = 2).
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---
ALKOVE-1: Objective Response in ALK TKI-Pretreated Patients
Advanced ALK+
Any prior ALK TKI a
Lorlatinib-naive
Lorlatinib-experienced
NSCLC
(1-5 prior ALK TKIs
(1-3 prior ALK TKIs
(1-5 prior ALK TKIs
RECIST v1.1 by
+ chemotherapy)
+ chemotherapy)
+ chemotherapy)
BICR
N 253
N 63
N 190
Prior alectinib only + chemotherapy:
ORR = 48% (21/44, 5% CR)
ORR, % (n/N)
31% (79/253)b
46% (29/63)
26% (50/190)b
[95% CI]
[26, 37]
[33, 59]
[20, 33]
≥2 prior ALK TKIs ± chemotherapy:
ORR = 28% (56/198)ᵇ
CR, % (n/N)
2% (6/253) C
5% (3/63) ᵈ
2% (3/190)
Median duration of follow-up of 11.3 months. b Includes 2 single-timepoint PR pending confirmation for ongoing patients.
c
Includes 2 single-timepoint CR pending confirmation in ongoing patients with prior confirmed PR. d Includes 1 single-timepoint
CR pending confirmation in ongoing patient with prior confirmed PR.
Lorlatinib-naïve ± chemotherapy
60
11171N; : V1180L
1 Prior ALK TKI (alectinib)
40
20
H171T: L1196M M171T;L1196M
D1203N; 111717
1 Prior ALK TKI (other)
Best % change in target lesions
11171N
G1202R
11171N
11171N
G1202R
G1202R
L1196Q
V1100L
G1202R
G1202R
111715
G1202R
G1202R
BEOCIO
G1202R
G1202R
V1180L
G1202R
2 Prior ALK TKIs
0
-20
3 Prior ALK TKIs
-40
+
Prior platinum
-60
chemotherapy
-80
Secondary ALK mutations
listed above the column
-100
PD
PD
PD
SD
SD
so
so
SD
SD
SD
so
so
SD
SD
so
PM
so
PR
PR
PR
PR
PR
PR
PR
OR
PR
PR
PR
CR
BICR, blinded independent central review; CI, confidence interval; CR, complete response; NE, not evaluable; ORR, objective response rate; PD, progressive disease; PR, partial response; SD, stable disease;
TKI, tyrosine kinase inhibitor.
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---
ALKOVE-1 Preliminary Data:
TKI-Naïve Patients with Advanced ALK+ NSCLC
ALK TKI-naïve, BICR
Response-evaluable
ALK TKI-naïve, BICR
CNS Response-evaluable
N 44
N=9
ORR, % (n/N)
86% (38/44)ᵃ
IC-ORR, % (n/N)
78% (7/9)
CR, % (n/N)
9% (4/44) b
IC-CR, % (n/N)
44% (4/9)
% DOR ≥ 12 months [95% CI] c
91% [70, 98]
IC-DOR
No CNS progression events
among intracranial responders
DOR range
1.7+ to 14.8+ months
IC-DOR range
3.1+ to 7.0+ months
a
Includes 2 single-timepoint PR pending confirmation for ongoing patients. b Includes 1 single-timepoint
CR pending confirmation in ongoing patient with prior confirmed PR. Analyses of DOR based on
d Includes 1 single-timepoint IC-CR pending confirmation in ongoing patient with prior
Kaplan-Meier estimates.
confirmed IC-PR.
60
ALK TKI-naïve ± chemotherapy
40
No prior chemotherapy
Prior platinum chemotherapy
Best % change in target lesions
20
0
-20
-40
-60
-80
-100
SD SD uPR uPR SD PR PR PR SD PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR SD PR PR PR PR PR CRCR CR CR
BICR, blinded independent central review, CI, confidence interval; CNS, central nervous system; CR, complete response; DOR, duration of response; ORR, objective response rate; PD, progressive disease; PR, partial response, so, stable disease, TKI, tyrosine knase inhibitor
2026 ASCO
PRESENTED BY: Jessica J. Lin, Mass General Brigham Cancer Institute, Boston, MA, USA
ASCO
AMERICAN
#ASCO26
CURRCAL ONE
ANNUAL MEETING
Presentation is property of the author and ASCO. Permission required for reuse; contact permissions@asco.org
KNOWLEDGE CONQUERS ID
1
ALKOVE-1
Neladalkib in Advanced ALK+ NSCLC
Meaningful post-lorlatinib activity with
strong G1202R and CNS efficacy signals.
MV Onco
2
WHY THIS STUDY MATTERS
Can
targeted
therapy
continue
ALK+
Sequential
Lorlatinib
CNS progression +
Few targeted
NSCLC
ALK TKIs
resistance
compound mutations
options
beyond
improve survival
eventually
become major
remain
lorlatinib?
emerges
challenges
3
DESIGNED FOR MODERN
4
HEAVILY PRETREATED POPULATION
ALK RESISTANCE BIOLOGY
Heavily post-lorlatinib population
Targets ALK single +
compound mutations
253
3
78%
Brain-penetrant
Efficacy-evaluable
Median prior
Received >2
Active in G1202R
patients
therapies
ALK TKIs
resistance
ALK
TRK-sparing design
91%
40%
19%
TRK
Prior
CNS
G1202R
lorlatinib
disease
mutations
5
MAJOR EFFICACY SIGNAL
All TKI-pretreated
Prior lorlatinib
G1202R mutation
ORR
ORR
ORR
Responses
remained
31%
26%
68%
durable
despite extensive
prior ALK
exposure.
6
CNS ACTIVITY REMAINED
DURABILITY
EARLY FRONTLINE SIGNAL
CLINICALLY MEANINGFUL
IC-ORR
Post- lorlatinib mDOR:
32%
63%
overall
in lorlatinib-
17.6
ORR
IC-ORR
naive pts
months
Brain penetrance remains
86%
78%
a defining strength.
Durability may matter
Preliminary but
No CNS progression events
more than raw ORR.
observed in early no naive cohort
highly encouraging.
7
LIMITATIONS
CLINICAL INTERPRETATION
Single-arm study
Neladalkib may extend
Early dataset
the future ALK sequencing
No comparative efficacy yet
!
pathway beyond lorlatinib.
Small molecular subgroups
9
Post-lorlatinib ALK inhibition
may still be biologically actionable.
Neladalkib demonstrated meaningful activity in resistant ALK+ NSCLC -
especially in G1202R mutations and CNS disease.
Jessica J. Lin et al
ASCO 2026
ALKOVE-1 (NCT05384626) is Nuvalent's pivotal Phase 1/2 trial of neladalkib (NVL-655), a brain-penetrant, ALK-selective, TRK-sparing fourth-generation ALK TKI engineered to (1) overcome the broad spectrum of secondary resistance mutations — particularly the recalcitrant ALK G1202R compound mutations that emerge on earlier-generation TKIs — and (2) avoid the off-target CNS adverse events linked to TRK inhibition (cognitive/mood effects, weight gain) that have shaped the tolerability profile of lorlatinib. The Phase 2 expansion enrolled patients with advanced ALK+ NSCLC after at least one prior ALK TKI. Updated data presented at ASCO 2026 cover 253 evaluable TKI-pretreated patients; an NDA has been submitted and FDA Priority Review granted with a PDUFA target action date of November 27, 2026.
Population
Advanced ALK-positive NSCLC after at least one prior ALK TKI (n=253 evaluable TKI-pretreated). Both lorlatinib-naive and lorlatinib-pretreated subsets reported, plus an ALK G1202R-mutant analysis.
Intervention
Neladalkib (NVL-655) monotherapy — oral, once daily at the recommended Phase 2 dose.
Primary Endpoint
Objective response rate per blinded independent central review (RECIST 1.1).
Key Secondary
Duration of response, intracranial response, PFS, safety/tolerability, and biomarker correlates of response/resistance.
Efficacy & Safety
Reported Results
Objective Response (Primary Endpoint)
BICR-assessed ORR was 31% (95% CI, 26–37) in the overall 253-patient TKI-pretreated population. Activity was substantially higher in subsets defined by prior therapy and resistance biology: ORR 46% in lorlatinib-naive patients, ORR 68% in ALK G1202R-mutant disease after prior TKI ± chemotherapy, and ORR 83% in G1202R-mutant, lorlatinib-naive disease.
Responses were durable: 12-month DOR rate 64% and 18-month DOR rate 53%. KOLs have flagged the durability tail as the most clinically meaningful aspect of the dataset given that this is a heavily pretreated, resistance-mutation-enriched population.
At the recommended Phase 2 dose, the most common TEAEs were ALT/AST increases, constipation, dysgeusia, edema, cough, and nausea. Dose reductions occurred in 17% and treatment discontinuations in 5% of patients. By design, neladalkib's ALK-selective, TRK-sparing profile largely avoids the cognitive/mood effects and weight gain that complicate lorlatinib.
STATUSNDA submitted · FDA Priority Review · PDUFA Nov 27, 2026 (investigational)
Nuvalent submitted an NDA for neladalkib in advanced ALK-positive NSCLC after at least one prior ALK TKI, and the FDA granted Priority Review with a PDUFA target action date of November 27, 2026. The drug remains investigational pending FDA action. A separate Phase 3 trial (ALKAZAR) is evaluating neladalkib vs alectinib in the 1L, TKI-naive setting.