Skip to content

A Study of Zidesamtinib (NVL-520) in Patients With Advanced NSCLC and Other Solid Tumors Harboring ROS1 Rearrangement (ARROS-1)

A Phase 1/2 Study of the Highly Selective ROS1 Inhibitor Zidesamtinib (NVL-520) in Patients With Advanced NSCLC and Other Solid Tumors (ARROS-1)

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05118789
Enrollment
359
Registered
2021-11-12
Start date
2022-01-04
Completion date
2028-12-31
Last updated
2025-10-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Locally Advanced Solid Tumor, Metastatic Solid Tumor

Brief summary

Phase 1/2, dose escalation and expansion study designed to evaluate the safety and tolerability of zidesamtinib (NVL-520), determine the recommended phase 2 dose (RP2D), and evaluate the antitumor activity in patients with advanced ROS1-positive (ROS1+) NSCLC and other advanced ROS1-positive solid tumors. Phase 1 will determine the RP2D and, if applicable, the maximum tolerated dose (MTD) of zidesamtinib in patients with advanced ROS1-positive solid tumors. Phase 2 will determine the objective response rate (ORR) as assessed by Blinded Independent Central Review (BICR) of zidesamtinib at the RP2D. Secondary objectives will include the duration of response (DOR), time to response (TTR), progression-free survival (PFS), overall survival (OS), and clinical benefit rate (CBR) of zidesamtinib in patients with advanced ROS1-positive NSCLC and other solid tumors.

Detailed description

In Phase 2, study patients will be enrolled into 5 distinct expansion cohorts: * Cohort 2a: ROS1-positive NSCLC naïve to Tyrosine Kinase Inhibitor (TKI) therapy and up to 1 prior chemotherapy and/or immunotherapy. * Cohort 2b: ROS1-positive NSCLC treated with 1 prior ROS1 TKI and no prior chemotherapy or immunotherapy. * Cohort 2c: ROS1-positive NSCLC treated with 1 prior ROS1 TKI and 1 prior platinum-based chemotherapy with or without immunotherapy. * Cohort 2d: ROS1-positive NSCLC treated with ≥2 prior ROS1 TKIs and up to 1 prior chemotherapy and/or immunotherapy. * Cohort 2e: ROS1-positive solid tumor and progressed on any prior therapy.

Interventions

DRUGZidesamtinib (NVL-520)

Oral tablet of zidesamtinib (NVL-520)

Sponsors

Nuvalent Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
12 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Age ≥18 years (Cohort 2e only: Age ≥12 years). 2. Disease Criteria: 1. Phase 1: Histologically or cytologically confirmed locally advanced or metastatic solid tumor with documented ROS1 rearrangement. 2. Phase 2: Cohorts 2a, 2b, 2c and 2d: Histologically or cytologically confirmed locally advanced or metastatic NSCLC with ROS1 rearrangement. 3. Phase 2: Cohort 2e: Histologically or cytologically confirmed locally advanced or metastatic solid tumor (other than NSCLC) with ROS1 rearrangement. 3. Prior anticancer treatment (except cohort 2a). 4. Phase 1: Must have evaluable disease (target or nontarget) according to RECIST 1.1. Phase 2: Must have measurable disease according to RECIST 1.1. 5. Adequate baseline organ function and bone marrow reserve.

Exclusion criteria

1. Patient's cancer has a known oncogenic driver alteration other than ROS1. 2. Known allergy/hypersensitivity to excipients of NVL-520. 3. Major surgery within 4 weeks of first dose of study drug. 4. Ongoing anticancer therapy. 5. Actively receiving systemic treatment or direct medical intervention on another therapeutic clinical study.

Design outcomes

Primary

MeasureTime frameDescription
Maximum Tolerated Dose (MTD) (Phase 1)Within 28 days of last patient dosed during dose escalationHighest dose with dose-limiting toxicity (DLT) rate ≤ 25%
Recommended Phase 2 Dose (RP2D)Within 28 days of last patient dosed during dose 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

Secondary

MeasureTime frameDescription
Average plasma concentration (Cavg) of NVL-520Pre-dose and up to 24 hours post-doseTo determine the average plasma concentration (Cavg) of NVL-520
Time of maximum concentration (Tmax) of NVL-520Pre-dose and up to 24 hours post-doseTo determine the time of maximum concentration (Tmax) of NVL-520
Area under the curve at the end of the dosing interval (AUCtau) of NVL-520Pre-dose and up to 24 hours post-doseTo determine the area under the curve at the end of the dosing interval (AUCtau) of NVL-520
Area under the curve from time 0 to 24 (AUC0-24) of NVL-520Pre-dose and up to 24 hours post-doseTo determine the area under the curve from time 0 to 24 (AUC0-24) of NVL-520
Area under the curve from time 0 to infinity (AUCinf) of NVL-520Pre-dose and up to 24 hours post-doseTo determine the area under the curve from time 0 to infinity (AUCinf) of NVL-520
Oral clearance (CL/F) of NVL-520Pre-dose and up to 24 hours post-doseTo determine the oral clearance (CL/F) of NVL-520
Volume of distribution (Vz/F) of NVL-520Pre-dose and up to 24 hours post-doseTo determine the volume of distribution (Vz/F) of NVL-520
Half-life (t1/2) of NVL-520Pre-dose and up to 24 hours post-doseTo determine the half-life (t1/2) of NVL-520
Objective response rate (ORR)2-3 years after first patient dosedDetermine ORR as assessed by BICR
Number of participants with treatment-emergent adverse events, as assessed by CTCAE, v5.0Approximately 3 years.Incidence and severity of treatment-emergent adverse events (TEAEs)
Clinical benefit rate (CBR)2-3 years after first patient dosedDetermine CBR of NVL-520
Time to response2-3 years after first patient dosedDetermine time to response of NVL-520
Progression-free survival (PFS)Approximately 3 yearsDetermine PFS of NVL-520 until radiographic disease progression or death
Overall survival (OS)Approximately 3 yearsDetermine OS
Rate of CNS progressionApproximately 3 yearsThe incidence of CNS as first site of progression, alone or with concurrent extra-CNS progression
Intracranial objective response rate (IC-ORR)Approximately 3 yearsDetermine the intracranial objective response rate
Quality of life assessment using the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30 (EORTC QLQ-C30)2-3 years after first patient dosedEORTC QLQ-C30 measures cancer patients' physical, psychological, and social functions. Scale ranges from: 1, Not at all; 2, A little; 3, Quite a bit; to 4, Very much. Higher score for the functioning scales and global health status denotes a better level of functioning, while higher scores on the symptom and single-item scales indicate a higher level of symptoms.
Quality of life assessment using the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire-Lung Cancer 29 module (EORTC QLQ-LC29)2-3 years after first patient dosedEORTC-QLQ-LC29 measures the quality of life in patients with lung cancer. Symptom scale ranges from: 1, Not at all; 2, A little; 3, Quite a bit; to 4, Very much. For symptoms scales, higher scores indicated greater symptom burden.
Duration of response (DOR)2-3 years after first patient dosedDetermine DOR of NVL-520 until radiographic disease progression or death
Maximum plasma concentration (Cmax) of NVL-520Pre-dose and up to 24 hours post-doseTo determine the maximum plasma concentration (Cmax) of NVL-520
Plasma concentration at the end of the dosing interval (Ctau) of NVL-520Pre-dose and up to 24 hours post-doseTo determine the plasma concentration at the end of the dosing interval (Ctau) of NVL-520

Countries

Australia, Belgium, Canada, France, Germany, Italy, Japan, Netherlands, Singapore, South Korea, Spain, Taiwan, United Kingdom, United States

Contacts

Primary ContactNuvalent
clinicaltrials@nuvalent.com857-357-7000

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 29, 2026