About this trial
Although small cell lung cancer (SCLC) responds dramatically to initial platinum-based chemotherapy, recurrences are nearly universal. The addition of atezolizumab, an immune checkpoint inhibitor, to front-line chemotherapy has recently demonstrated an improvement in overall survival (OS) in extensive stage SCLC (ES-SCLC). Subsequent lines of therapies are associated with modest efficacy in patients with relapsed disease, and the median overall survival is still 12 to 13 months at best.
Cirtuvivint is a small molecule inhibitor of the CDC2-like kinases (CLKs) and dual-specificity tyrosine-regulated kinases (DYRKs); inhibiting CLKs and DYRKs has been shown in preclinical models to cause tumor growth inhibition and sensitize cancer cells to cytotoxic chemotherapy.
This study is testing the hypothesis that adding cirtuvivint to chemotherapy in patients with relapsed SCLC will be well tolerated and improve the response rate and progression-free survival (PFS).
Eligibility criteria
Qualifiers
Histologically or cytologically confirmed small cell lung cancer that has progressed on at least one line of prior platinum-based chemotherapy, given with or without anti-PD-(L)1 therapy.
Presence of measurable disease per RECIST 1.1 criteria
At least 18 years of age.
ECOG performance status ≤ 2
Disqualifiers
Prior or concurrent malignancy whose treatment or natural history has the potential to interfere with the safety or efficacy assessment of the investigational regimen. Patients with prior or concurrent malignancy that does NOT meet that definition (following discussion with the PI) are eligible for this trial.
Previous intolerance to irinotecan. Treatment with prior irinotecan is allowed as along as treatment was not discontinued for treatment related adverse events.
Currently receiving any other investigational agents.
Patients with untreated symptomatic brain metastases or with clinically evident CNS hemorrhage. Patients with treated brain metastases are allowed if post-treatment brain imaging after CNS-directed therapy shows no evidence of progression. Patients with asymptomatic, punctate brain metastases < 5 mm are allowed.
Trial design
Treatments tested in this trial
- Cirtuvivint
- Irinotecan
Treatment groups
Sponsors and collaborators
Washington University School of Medicine
Lead sponsor
Biosplice Therapeutics, Inc.
Collaborator