About this trial
This study is designed as a prospective, multi-center investigation to explore the efficacy and safety of furmonertinib combined with upfront thoracic radiotherapy with or without metastatic lesion radiotherapy in subjects with EGFR-mutant NSCLC and malignant pleural effusion (MPE), aiming to provide additional evidence-based medical support for optimizing the management of NSCLC-MPE subjects. In addition, peripheral blood ctDNA next-generation sequencing (NGS) will be performed at two time points-before the first furmonertinib treatment and one month after the completion of thoracic radiotherapy-to identify subpopulations most likely to benefit from this therapeutic approach and to elucidate resistance mechanisms specific to the radiotherapy-plus-furmonertinib combination, ultimately facilitating more personalized care for these subjects.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age ≥ 18 years.
Histologically or cytologically confirmed advanced lung adenocarcinoma.
Unlimited number of metastatic lesions, but with involvement of no more than 3 organs.
Previously untreated, clinical stage IV disease per AJCC/UICC 9th edition.
Disqualifiers
Pre-existing interstitial lung disease (ILD) or infectious fever prior to treatment.
Radiographic progression (PD) after 8-10 weeks of TKI therapy, or development of grade ≥ 2 ILD.
Concurrent autoimmune disease requiring long-term oral corticosteroid therapy.
Severe anemia.
Trial design
Single group
Treatments tested in this trial
Furmonertinib
DrugSubjects will receive furmonertinib 80 mg orally once daily. The drug will be suspended before radiotherapy initiation, maintained on hold during the entire radiotherapy course, and withheld for an additional 3 days after radiotherapy ends, after which it will be resumed.
Thoracic Radiotherapy (TRT)
RadiationThe radiotherapy target volume encompasses residual primary pulmonary lesions, regional lymph node metastases, and pleural metastases, with the option to additionally irradiate osseous, adrenal, hepatic, or brain metastases (with a maximum of 6 total irradiated sites and no more than 3 involved organs). Consolidative cranial irradiation for brain metastases will be deferred in cases where the residual lesion diameter is \<1 cm following furmonertinib therapy and the patient remains free of clinically significant neurological symptoms.
Treatment groups
Trial outcomes
Primary outcomes
Progression-Free Survival (PFS)
PFS defined as time from first dose of furmonertinib to disease progression per RECIST v1.1 or death from any cause, whichever occurs first.
Secondary outcomes
Overall Response Rate (ORR)
Proportion of subjects achieving complete response (CR) or partial response (PR) according to RECIST v1.1.
Malignant pleural effusion recurrence rate
Rate of MPE recurrence during the entire follow-up period following fumonertinib and local radiotherapy.
Disease Control Rate (DCR)
Proportion of subjects achieving CR, PR, or stable disease (SD) according to RECIST v1.1.
Overall Survival (OS)
Time from first dose of furmonertinib to death from any cause.
Locations
Sponsors and contacts
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