NVL-520 for ROS1-Positive Solid Tumors
What You Need to Know Before You Apply
What is the purpose of this trial?
This trial tests a new treatment called NVL-520 (also known as Zidesamtinib) for individuals with advanced solid tumors that have a specific genetic change known as ROS1-positive. The main goal is to assess the safety and effectiveness of NVL-520 in treating these cancers, particularly a type of lung cancer called NSCLC. The trial includes different groups based on previous treatments, making it potentially suitable for those with ROS1-positive cancer who have undergone specific past treatments like certain chemotherapy or targeted therapies. The study aims to determine the right dose and evaluate how well the treatment shrinks tumors. As a Phase 1 trial, the research focuses on understanding how the treatment works in people, offering participants the opportunity to be among the first to receive this new treatment.
Do I need to stop my current medications to join the trial?
The trial protocol does not specify whether you need to stop taking your current medications. However, it does mention that ongoing anticancer therapy is an exclusion criterion, which might imply that you need to stop such treatments before joining.
Is there any evidence suggesting that NVL-520 is likely to be safe for humans?
Research shows that zidesamtinib (NVL-520) is safe for people with ROS1-positive solid tumors. In studies, most patients tolerated zidesamtinib well, with few serious side effects, and any issues were mostly manageable.
Researchers have administered this experimental treatment to 514 patients at different doses to find the safest and most effective dose. As this study is in its early stages, it helps researchers understand how the body processes the drug. Safety information from these studies will guide further research to ensure the treatment is safe for more people.12345Why do researchers think this study treatment might be promising?
NVL-520 is unique because it targets ROS1-positive tumors with a new mechanism of action, potentially offering more precise treatment compared to existing options. Unlike standard treatments like crizotinib or entrectinib, NVL-520 is specifically designed to overcome resistance that often develops with current therapies. Researchers are excited because NVL-520 may provide a more effective option for patients who have exhausted other treatments, and its oral daily dosing could offer more convenience and flexibility in managing the condition.
What evidence suggests that NVL-520 might be an effective treatment for ROS1-positive solid tumors?
Research has shown that zidesamtinib (NVL-520), the investigational treatment in this trial, may help treat ROS1-positive solid tumors, including non-small cell lung cancer (NSCLC). Studies have found that it can lead to long-lasting improvements in patients who have already tried other treatments. Early results indicate that patients experienced significant tumor shrinkage and sustained benefits. In one large study, patients with advanced ROS1-positive solid tumors showed positive results with zidesamtinib, even after previous treatments. This trial will evaluate zidesamtinib across various cohorts, including those who have received different prior therapies, to further assess its potential as a treatment option for ROS1-positive tumors.15678
Who Is on the Research Team?
Vivek Upadhyay, MD, MBI
Principal Investigator
Nuvalent Inc.
Are You a Good Fit for This Trial?
This trial is for adults with advanced solid tumors, especially non-small cell lung cancer (NSCLC), that have a specific genetic change called ROS1 rearrangement. Patients should have tried other cancer treatments unless they're in one special group. They need to be healthy enough overall and not currently on another clinical study or recent major surgery.Inclusion Criteria
Exclusion Criteria
Timeline for a Trial Participant
Screening
Participants are screened for eligibility to participate in the trial
Phase 1 Dose Escalation
Determine the recommended phase 2 dose (RP2D) and maximum tolerated dose (MTD) of NVL-520 in patients with advanced ROS1-positive solid tumors
Phase 2 Expansion
Evaluate the objective response rate (ORR) and other secondary outcomes such as duration of response (DOR), progression-free survival (PFS), and overall survival (OS) in patients with advanced ROS1-positive NSCLC and other solid tumors
Follow-up
Participants are monitored for safety and effectiveness after treatment
What Are the Treatments Tested in This Trial?
Interventions
- NVL-520
Trial Overview
NVL-520 is being tested to see how safe it is and what dose works best against these cancers. The first phase figures out the right dose; the second checks how well it shrinks tumors using independent reviews, also looking at survival times and other health benefits.
How Is the Trial Designed?
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Treatment groups
Experimental Treatment
Zidesamtinib (NVL-520) oral daily dosing
ROS1+ solid tumor and progressed on any prior therapy
ROS1+ NSCLC treated with ≥2 prior ROS1 TKIs and up to 1 prior chemotherapy and/or immunotherapy
ROS1+ NSCLC treated with 1 prior ROS1 TKI and 1 prior platinum-based chemotherapy with or without immunotherapy
ROS1+ NSCLC treated with 1 prior ROS1 TKI and no prior chemotherapy or immunotherapy
ROS1+ NSCLC naïve to TKI therapy and up to 1 prior chemotherapy and/or immunotherapy
Find a Clinic Near You
Who Is Running the Clinical Trial?
Nuvalent Inc.
Lead Sponsor
Published Research Related to This Trial
Citations
NCT05118789 | A Study of Zidesamtinib (NVL-520) in ...
A Study of Zidesamtinib (NVL-520) in Patients With Advanced NSCLC and Other Solid Tumors Harboring ROS1 Rearrangement (ARROS-1). ClinicalTrials.gov ID ...
Pivotal ARROS-1 Efficacy and Safety Data: Zidesamtinib in ...
Ross Camidge, MD, PhD, discusses a pivotal phase 2/3 clinical trial (ARROS-1) evaluating the efficacy and safety of zidesamtinib in patients ...
3.
investors.nuvalent.com
investors.nuvalent.com/2025-06-24-Nuvalent-Announces-Positive-Pivotal-Data-from-ARROS-1-Clinical-Trial-of-Zidesamtinib-for-TKI-Pre-treated-Patients-with-Advanced-ROS1-positive-NSCLCNuvalent Announces Positive Pivotal Data from ARROS-1 ...
As of the data cut-off date of March 21, 2025, 514 patients with ROS1-positive solid tumors had received zidesamtinib at any starting dose ...
4.
cancernetwork.com
cancernetwork.com/view/zidesamtinib-may-yield-meaningful-outcomes-in-advanced-ros1-nsclcZidesamtinib May Yield Meaningful Outcomes in ...
With a data cutoff of March 21, 2025, 514 patients with ROS1-positive solid tumors received zidesamtinib at any starting dose across the phase 1 ...
5.
oncologynewscentral.com
oncologynewscentral.com/nsclc/zidesamtinib-shows-early-signs-of-efficacy-durability-in-pretreated-ros1-nsclcZidesamtinib Shows Early Signs of Efficacy, Durability in ...
Zidesamtinib Shows Early Signs of Efficacy, Durability in Pretreated ROS1-Positive NSCLC · Durable Responses Demonstrated · Efficacy Against ...
6.
onclive.com
onclive.com/view/zidesamtinib-data-align-with-clinical-expectations-in-pretreated-ros1-advanced-nsclcZidesamtinib Data Align With Clinical Expectations in ...
Zidesamtinib achieved a 44% ORR and 1% CR rate in advanced ROS1-positive NSCLC patients with prior ROS1 TKI therapy. The ARROS-1 trial showed ...
7.
investors.nuvalent.com
investors.nuvalent.com/2025-08-13-Nuvalent-to-Present-Pivotal-Data-from-ARROS-1-Clinical-Trial-of-Zidesamtinib-for-TKI-Pre-treated-Patients-with-Advanced-ROS1-positive-NSCLC-at-WCLC-2025-Presidential-SymposiumNuvalent to Present Pivotal Data from ARROS-1 Clinical ...
The completed Phase 1 portion enrolled ROS1-positive NSCLC patients who previously received at least one ROS1 TKI, or patients with other ROS1- ...
1256MO Phase I/II ARROS-1 study of zidesamtinib (NVL- ...
Zidesamtinib demonstrated encouraging efficacy and durability in pts with pretreated ROS1+ NSCLC, including those who had exhausted available therapies, with ...
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