About this trial
The goal of the Monotherapy Dose Escalation phase (Part 1) of the study is to evaluate the safety, tolerability, pharmacokinetics (PK) and preliminary anti-tumor activity to determine the preliminary recommended dose for expansion (RDE) of NKT3964 in adults with advanced or metastatic solid tumors.
The goal of the Monotherapy Expansion phase of the study (Part 2) is to evaluate the preliminary anti-tumor activity of NKT3964 at the RDE based on objective response rate (ORR) and determine the preliminary recommended Phase 2 dose (RP2D).
The goal of the Combination Dose Escalation phase (Part 3) of the study is to identify the RDE of NKT3964 in combination with chemotherapy in adult subjects with advanced/metastatic endometrial cancer. The goal of the Combination Expansion phase of the study (Part 4) is to evaluate the preliminary anti-tumor activity of NKT3964 in combination with chemotherapy at the RDE based on ORR.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Ovarian cancer
Endometrial cancer (only endometrioid subtype will require CCNE1 amplification)
Gastric, gastroesophageal junction (GEJ) or esophageal adenocarcinoma with CCNE1 amplification
Small cell lung cancer (SCLC)
Disqualifiers
Locally advanced solid tumor that is a candidate for curative treatment through radical surgery and/or radiotherapy, or chemotherapy.
History of another malignancy with exceptions
History of lymphohistiocytic or lymphoid hyperplasia; hemophagocytic lymphohistiocytosis.
Failed to recover from effects of prior anticancer treatment therapy to baseline or Grade ≤ 1 severity (per CTCAE)
Trial design
Sequential
Treatments tested in this trial
NKT3964
DrugOral CDK2 Degrader
Paclitaxel
DrugPaclitaxel will be administered on a 3 weeks on, 1 week off schedule at a dose of 80 mg/m2 IV. Subjects will receive a total of 6 cycles of paclitaxel.
Doxorubicin
DrugDoxorubicin will be administered every 3 weeks at a dose of 60 mg/m2 IV. Subjects will receive a total of 6 cycles of doxorubicin.
Treatment groups
10
Treatment groupsSee each treatment group below.
Trial outcomes
Primary outcomes
Number of Participants with Dose Limiting Toxicity (DLT) events
DLTs graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version 5.0
Objective Response Rate (ORR)
ORR defined as the percentage of participants with a confirmed complete response (CR) or partial response (PR) by Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1) as determined by the Investigator
Secondary outcomes
Progression-free survival (PFS)
PFS defined as the time from the date the participant started study drug to the date the participant experiences an event of disease progression or death.
Duration of Response (DOR)
Duration of overall response is defined as the time from the date of first confirmed CR or PR, assessed by investigator and based on RECIST v. 1.1, to the documented date of progressive disease (PD) including clinical progression, or death due to any cause, or the start of subsequent anticancer therapy, whichever occurred first.
Disease control rate
Disease control rate defined as CR + PR + stable disease \[SD\] for at least 8 weeks
Overall Survival (OS)
OS defined as the time from the date the participant started study drug to death for any reason.
Sponsors and contacts
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