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Neladalkib

Phase 1

Locally Advanced Solid Tumor | Small molecule | Oncology |Nuvalent, Inc.|Trials Updated: Sep 30, 2026

Neladalkib development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Feb 2025

Neladalkib target and mechanism

Molecular targetALK
Target classKinase
ModalitySmall molecule

Also known as Neladalkib (NVL-655), NVL-655

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMCBiomarker
Total Trials2
Total Enrollment1,290

FDA Designations

BREAKTHROUGH_THERAPYORPHAN_DRUG

Neladalkib clinical trials

Neladalkib · 2 trials · 4 indications

Phase 3 1Phase 1 1
NCT06765109Neladalkib (NVL-655) for TKI-naive Patients With Advanced ALK-Positive NSCLCNon-small Cell Lung Cancer
RECRUITING450 Analytics
PHASE3RECRUITING
Neladalkib (NVL-655) for TKI-naive Patients With Advanced ALK-Positive NSCLC
Non-small Cell Lung CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Progression-free survival (PFS) per blinded independent central review (BICR)
Up to 5 years after first patient dosed

Time from randomization to BICR-assessed radiographic disease progression or death

Dose limiting toxicities (DLTs) (Phase 1)
Within the first 21 days of the first neladalkib (NVL-655) dose

Define the dose limiting toxicities (DLTs)

Recommended Phase 2 Dose (RP2D) (Phase 1)
Within 21 days of last patient dosed during escalation

To determine the RP2D

Objective Response Rate (ORR) (Phase 2)
2-3 years after first patient dosed.

To determine ORR as assessed by BICR

Number of participants with treatment-emergent adverse events, as assessed by CTCAE, V5.0 (Phase 1)
Approximately 3 years

Incidence and severity of treatment-emergent adverse events (TEAEs)

Area under the curve of repaglinide (Phase 2 DDI sub-study)
Pre-dose and up to 24 hours post-dose

To determine the effect of multiple oral doses of neladalkib (NVL-655) on the PK of a single oral dose of repaglinide

Area under the curve of midazolam (Phase 2 DDI sub-study)
Pre-dose and up to 24 hours post-dose

To determine the effect of multiple oral doses of neladalkib (NVL-655) on the PK of a single oral dose of midazolam

Area under the curve of neladalkib (NVL-655) (Phase 2 DDI sub-study)
Pre-dose and up to 24 hours post-dose

To determine the effect of itraconazole on the single oral dose PK of neladalkib (NVL-655)

Secondary Endpoints

Overall survival (OS)
Up to 5 years after first patient dosed
Progression-free survival (PFS) per investigator assessment
Up to 5 years after first patient dosed
Time to intracranial progression per BICR
Up to 5 years after first patient dosed
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Study Design & Arms

AllocationRANDOMIZED
MaskingSINGLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Neladalkib (NVL-655)EXPERIMENTAL150mg taken orally once daily (QD)
AlectinibACTIVE_COMPARATOR600mg taken orally twice daily (BID)
Phase 1 dose escalationEXPERIMENTALNeladalkib (NVL-655) oral daily dosing
Cohort 2aEXPERIMENTALPatients with locally advanced or metastatic NSCLC harboring an ALK rearrangement who have received 1 prior 2nd-generation ALK TKI (ceritinib, alectinib, or brigatinib). Up to 2 prior lines of chemotherapy and/or immunotherapy are allowed.
Cohort 2bEXPERIMENTALPatients with locally advanced or metastatic NSCLC harboring an ALK rearrangement, who have received 2-3 prior ALK TKIs (crizotinib, ceritinib, alectinib, brigatinib, or lorlatinib). Up to 2 prior lines of chemotherapy and/or immunotherapy are allowed.
Cohort 2cEXPERIMENTALPatients with locally advanced or metastatic NSCLC harboring an ALK rearrangement, who have received lorlatinib as the only prior ALK TKI therapy. Up to one prior line of chemotherapy and/or immunotherapy received prior to lorlatinib is allowed.
Cohort 2dEXPERIMENTALPatients with locally advanced or metastatic NSCLC harboring an ALK rearrangement, who are naïve to ALK TKI therapy. Up to one prior line of chemotherapy and/or immunotherapy is allowed.
Cohort 2eEXPERIMENTALPatients with locally advanced or metastatic NSCLC harboring an ALK rearrangement, not eligible for other Phase 2 cohorts.
Cohort 2fEXPERIMENTALPatients with other solid tumors harboring an ALK rearrangement or activating ALK mutation, who have received ≥1 prior systemic anticancer therapy, or for whom no satisfactory standard therapy exists.
Cohort G (DDI sub-study)EXPERIMENTALPatients with locally advanced or metastatic NSCLC harboring an ALK rearrangement who have received ≥1 prior ALK TKI
Cohort H (DDI sub-study)EXPERIMENTALPatients with locally advanced or metastatic NSCLC harboring an ALK rearrangement who have received ≥1 prior ALK TKI

Interventions

NameTypeDescription
Neladalkib (NVL-655)DRUGOral tablet of Neladalkib (NVL-655)
AlectinibDRUGOral capsule of alectinib
MidazolamDRUGOral Solution of Midazolam
RepaglinideDRUGOral Tablet of Repaglinide
ItraconazoleDRUGOral Solution of Itraconazole
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites159

Inclusion Criteria: 1. Histologically or cytologically confirmed locally advanced (not amenable for multimodality treatment) or metastatic Non-small Cell Lung Cancer (NSCLC) 2. Documented Anaplastic Lymphoma Kinase (ALK) rearrangement via testing of tissue or blood 3. No prior systemic anticancer t...

Countries:United StatesArgentinaAustraliaAustriaBelgiumBrazilCanadaChileCzechiaDenmarkFranceGermanyGreeceHong KongHungaryItalyJapanMalaysiaMexicoNetherlandsPolandPortugalSingaporeSouth KoreaSpainSwitzerlandTaiwanThailandUnited Kingdom
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Recent Changes (Last 90 Days)

LOWSep 30, 2026NCT06765109lastUpdatePostDate: changed
LOWSep 30, 2026NCT06765109lastUpdatePostDate: changed
LOWAug 25, 2026NCT06765109lastUpdatePostDate: changed
LOWAug 25, 2026NCT06765109lastUpdatePostDate: changed

Frequently asked questions about Neladalkib

What is neladalkib used for?

Neladalkib is an investigational oral medicine being studied for locally advanced or metastatic solid tumors and non-small cell lung cancer that harbor an ALK rearrangement or activating ALK mutation. It is also being evaluated in patients with advanced ALK-positive NSCLC who have not previously received a tyrosine kinase inhibitor.

What does neladalkib target?

Neladalkib targets ALK, a kinase whose rearrangements and activating mutations drive certain solid tumors and non-small cell lung cancers. By inhibiting ALK kinase activity, the small molecule is designed to act on cancers that depend on ALK signaling. It is being developed by Nuvalent, Inc. (ticker NUVL).

Who is developing neladalkib?

Neladalkib is being developed by Nuvalent, Inc., which trades under the ticker NUVL. Nuvalent holds the program and is running the clinical studies evaluating the drug in ALK-positive non-small cell lung cancer and other ALK-altered solid tumors.

What phase is neladalkib in?

Neladalkib is in clinical development and is not approved. It is being studied in a Phase 1 trial and a Phase 3 trial. The Phase 3 study, NCT06765109, is recruiting and is evaluating neladalkib in TKI-naive patients with advanced ALK-positive non-small cell lung cancer.

What clinical trials is neladalkib in?

Neladalkib is being evaluated in two recruiting studies. NCT05384626, known as ALKOVE-1, is a Phase 1 trial in advanced NSCLC and other solid tumors with ALK rearrangement or activating ALK mutation, with enrollment of 840. NCT06765109 is a Phase 3 trial in TKI-naive patients with advanced ALK-positive NSCLC, with enrollment of 450.

Is neladalkib the same as NVL-655?

Yes, neladalkib and NVL-655 refer to the same investigational drug. NVL-655 is the code name used by the developer, Nuvalent, Inc., and neladalkib is the drug's name. Both names appear in the trial titles for the ALKOVE-1 Phase 1 study and the Phase 3 study in TKI-naive ALK-positive NSCLC.