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Resistance Mechanisms and Sequential Treatment Strategies Following First-Line Lorlatinib in ALK-Positive NSCLC

Resistance Mechanisms and Sequential Treatment Strategies Following First-Line Lorlatinib in ALK-Positive NSCLC: A Multi-center, Observational, Prospective Real-world Cohort Study (LORES)

Status
Not yet recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06904547
Enrollment
100
Registered
2025-04-01
Start date
2025-04-20
Completion date
2030-12-31
Last updated
2025-04-11

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

Conditions

ALK-Positive NSCLC

Brief summary

This is a prospective, multicenter, non-interventional, single-arm, real-world study planned to be conducted in China, aimed at exploring the resistance mechanisms of first-line lorlatinib treatment in patients with ALK-positive locally advanced or metastatic NSCLC, as well as the efficacy and safety of sequential treatments following lorlatinib resistance in the real-world setting.

Interventions

No intervention administered

OTHERNon Interventional Study

Non Interventional Study

Sponsors

Shanghai Chest Hospital
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

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

Inclusion criteria

1. Age: Patients aged 18 years or older; 2. Histologically or cytologically confirmed locally advanced or metastatic NSCLC 3. Documened ALK resrrangemen by approved test (eg.. FisH,IHC. .r NGS). 4. first-line loelaninab treatment fom Apr2023-Apr-2027. 5. Evidenoe of popression to first-line lorlztinib within 2 weekes.

Exclusion criteria

1. Previous treatment with other ALK-TKIs: Patients who have previously received any ALK TKI other than lorlatinib; 2. Concomitant medications: Patients who have received any systemic anti-tumor treatment other than lorlatinib before enrollment.

Design outcomes

Primary

MeasureTime frameDescription
mechanisms of resistance to first-line lorlatinib24 monthsReslstance Assessment 1. Liquld Blops-Blood eIDNA NGS 2. Tissue Biopsy (If applicablo)-NGS mechanisms of resistance to first-line lorlatinib 1. Propression pattern * Priary ressstance * Acquined resistance 2. Moleculsr mechanisms of progression via ctDNA/organize NGS testing. 3. Difference between the mnechsnisins of primary and acquired resistance

Secondary

MeasureTime frameDescription
Exploring the sequential treatment strategies and their efficacy and safety after first-line progression with lorlatinib24 months1. rwTTD1: discontinuation of lorlatinib for any reason (including disease progression, death, severe adverse events, or patient choice) 2. rwTTD2: progression on first-line lorlatinib to discontinuation of the first sequential anti-tumor treatment for any reason (including disease progression, death, severe adverse events, or patient withdrawal from the study) 3. rwORR2: the overall proportion of patients who achieve complete response (CR) and partial response (PR) 4. rwDCR2: the overall proportion of patients who achieve complete response (CR), partial response (PR), and stable disease (SD) 5. rwPFS2: progression on first-line lorlatinib to disease progression or death from any cause or last confirmed survival 6、1-year/2-year-rwPFS2 rate: he proportion of patients who remain progression-free within 1 year/2 years 7、the overall proportion of patients who survive within 1 year/2 years 8、Exploration of the proportion and related reasons for dose adjustment

Other

MeasureTime frameDescription
To determine the optimal sequential treatment strategies for different resistance mechanisms and the impact of these resistance mechanisms on patient outcomes in sequential treatment24 months1. Explore the impact of different resistance mechanisms on patient prognosis, and investigate the sequential treatment strategies (including treatment efficacy and safety, if data are available in clinical practice) for ALK-positive locally advanced or metastatic NSCLC patients after resistance to first-line lorlatinib. 2. Through comprehensive genomic analysis, explore which molecular pathological changes can provide guiding information for treatment after lorlatinib resistance, and identify which biomarkers can predict which patients are likely to benefit from specific treatments, thereby formulating individualized treatment plans to improve overall patient efficacy.

Contacts

Primary ContactLi Zi ming
liziming1980@163.com18017321562

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026