OncoMatch/Clinical Trials/NCT06809517
Intrathecal PD-1/VEGF Bispecific Antibody Plus Pemetrexed for Leptomeningeal Metastasis
Is NCT06809517 recruiting? Yes, currently enrolling (Jun 2026). This Phase 1/2 trial studies multiple treatments including AK112 and Pemetrexed (Alimta) for leptomeningeal metastasis.
Treatment: AK112 · Pemetrexed (Alimta) — Leptomeningeal metastasis, characterized by tumor cells infiltrating and proliferating in the subarachnoid space, represents a distinct pattern of central nervous system involvement and is a fatal complication of malignant tumors. This phase I/II study is to evaluate the recommended dose, safety, feasibility, and therapeutic response of intrathecal PD-1/VEGF bispecific antibody plus pemetrexed in patients with leptomeningeal metastasis.
Check if I qualifyExtracted eligibility criteria
Treatments studied
Other
Disease stage
Metastatic disease required
Leptomeningeal metastasis; Cerebrospinal fluid cytopathology is positive.
Demographics
Prior therapy
Cannot have received: small molecule targeted therapy (EGFR-TKI, ALK-TKI, osimertinib, lorlatinib)
Exception: previously administered drugs are allowed
new drugs effective against leptomeningeal metastases were used, excluding those previously administered. These primarily included small molecule targeted therapies, such as EGFR-TKI/ALK-TKI drugs like Osimertinib and Lorlatinib.
Lab requirements
Blood counts
wbc≥4000/mm3, plt≥100000/mm3
Kidney function
normal kidney function
Liver function
normal liver function
Structured fields extracted by AI. May contain errors — verify against the official protocol.
Frequently asked questions
Is NCT06809517 currently recruiting?
Yes, this trial is currently recruiting patients.
Are there prior therapy exclusions?
Yes. Prior small molecule targeted therapy disqualifies patients from enrollment.
Is there an age limit?
Yes. Patients must be 75 years or younger and at least 21 years old.
Could you qualify for this trial?
Enter your biomarker results to see how this trial's eligibility criteria match your specific cancer profile.
Check if I qualify