The Dynamic Monitoring of Cerebrospinal Fluid ctDNA

NCT ID: NCT06315686

Last Updated: 2024-03-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-09-29

Study Completion Date

2024-12-31

Brief Summary

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Focusing on advanced EGFR mutation in NSCLC patients with leptomeningeal metastasis, vormetinib combined with OMMAYA lateral ventricle chemotherapy (pemetrexed) was used to dynamically monitor ctDNA in cerebrospinal fluid (CSF), analyze the ctDNA gene mutation profile of CSF in different patients, and explore the relationship between ctDNA and efficacy and prognosis.

Detailed Description

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This is a single-center prospective cohort study. Patients with advanced EGFR-mutated NSCLC with leptomeningeal metastasis were treated with vormetinib combined with OMMAYA lateral ventricle chemotherapy (pemetrexed). Dynamic monitoring of cerebrospinal fluid ctDNA was performed to analyze the ctDNA gene mutation profile of cerebrospinal fluid in different patients, and to explore the relationship between ctDNA and efficacy and prognosis. At the same time, the study of drug vacation in the treatment of leptomeningeal metastasis is to explore the efficacy and safety of brain drug vacation, so as to reduce the patient's tolerance to drugs and the side effects of drugs. The endpoint was progression-free survival (PFS) of intracranial lesions.

Conditions

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NSCLC

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Experimental group

Eligible patients with advanced non-small cell lung cancer with leptomeningeal metastasis were treated with vormetinib combined with OMMAYA lateral ventricle chemotherapy (pemetrexed).

Group Type EXPERIMENTAL

pemetrexed

Intervention Type DRUG

The efficacy of Furmonertinib combined with OMMAYA lateral ventricle chemotherapy (pemetrexed) was evaluated once a week during the treatment phase. After the brain lesions were evaluated as CR, the drug holiday study phase was added. During the study period, the patients were followed up once a week until the investigators deemed the subjects unfit to continue to participate in the study or the efficacy was evaluated as disease progression (PD).

Interventions

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pemetrexed

The efficacy of Furmonertinib combined with OMMAYA lateral ventricle chemotherapy (pemetrexed) was evaluated once a week during the treatment phase. After the brain lesions were evaluated as CR, the drug holiday study phase was added. During the study period, the patients were followed up once a week until the investigators deemed the subjects unfit to continue to participate in the study or the efficacy was evaluated as disease progression (PD).

Intervention Type DRUG

Other Intervention Names

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Furmonertinib

Eligibility Criteria

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Inclusion Criteria

* Advanced NSCLC patient with EGFR mutation, associated with leptomeningeal metastasis
* Patients who meet the requirements of OMMAYA cystlateral ventricle chemotherapy
* Age \> 18 years
* Complete serologic tumor markers (CEA, SCC) and imaging data (enhanced CT and/or MRI, PET-CT)
* Liver, kidney, and hematologic measures were normal (as measured by laboratory testing within 1 week before enrollment in the absence of ongoing supportive care), with a neutrophil count of more than 1.5×109/L, a platelet count of more than 100×109/L, and a hemoglobin level of more than 9.0g/dl ,Bilirubin normal or \<1.5×ULN; AST(SGOT), ALT(SGPT) \<2.5×ULN; Serum creatinine \<1.5×ULN
* The patients were fully aware of the study, provided voluntary written informed consent, and were able to adhere to the protocol-defined visit and follow-up procedures

Exclusion Criteria

* Patients who do not meet the requirements of lateral ventricular chemotherapy
* History of allergy to vormetinib and pemetrexed
* Severe complications occurred during the treatment
* Known history of allogeneic organ transplantation and allogeneic hematopoietic stem cell transplantation
* Severe infection in active stage or with poor clinical control
* Mentally ill, substance abusers and pregnant or lactating women
* No informed consent was signed
* Eligibility as judged by the other investigators
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Jiangsu Province Nanjing Brain Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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fang S cun, M.D.

Role: STUDY_DIRECTOR

Nanjing Brain Hospital

Locations

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Nanjing Brain Hospital

Suzhou, Jiangsu, China

Site Status RECRUITING

Countries

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China

Central Contacts

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fang S Cun, M.D.

Role: CONTACT

83728558 ext. 025

Facility Contacts

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fang S Cun, M.D.

Role: primary

83728558 ext. 025

fang S cun

Role: backup

Other Identifiers

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MA-ENDO-202209

Identifier Type: -

Identifier Source: org_study_id

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