A Phase 1/2 interventional study of Navitoclax and Vistusertib in Metastatic Malignant Solid Neoplasm, Recurrent Lung Small Cell Carcinoma and Recurrent Malignant Solid Neoplasm, sponsored by National Cancer Institute (NCI). Terminated at 14 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-10-17.
Sponsored by National Cancer Institute (NCI) · Phase 1/2, Interventional, and Treatment
This phase I/II trial studies the best dose and side effects of navitoclax and how well it works when given together with vistusertib in treating patients with small cell lung cancer and solid tumors that have come back (relapsed). Drugs used in chemotherapy, such as navitoclax, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Vistusertib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Giving navitoclax and vistusertib may work better than navitoclax alone in treating patients with small cell lung cancer and solid tumors.
PRIMARY OBJECTIVES:
I. To evaluate the safety and tolerability of the combination of navitoclax and vistusertib in patients with advanced solid tumors. (Phase I) II. To determine the maximum tolerated dose (MTD), dose limiting toxicities (DLT), and recommended phase 2 doses (RP2D) of navitoclax and vistusertib. (Phase I) III. To determine the objective response rate (ORR), defined as complete plus partial response, of the combination of navitoclax and vistusertib in patients with recurrent small cell lung cancer (SCLC). (Phase II)
SECONDARY OBJECTIVES:
I. To evaluate the pharmacokinetics of navitoclax and vistusertib when administered together. (Phase I) II. To observe and record anti-tumor activity. (Phase I) III. To confirm the safety and tolerability of navitoclax and vistusertib at the RP2D. (Phase II) IV. To estimate progression free survival (PFS) and overall survival (OS) of the combination of navitoclax and vistusertib at the RP2D. (Phase II) V. To estimate disease control rate (DCR) of the combination of navitoclax and vistusertib at the RP2D. (Phase II)
CORRELATIVE OBJECTIVES:
I. To assess pharmacodynamic changes in levels of phosphorylated 4EBP1 (p4EBP1) the ratio of p4EBP1 to total (p4EBP1/4EBP1) in paired pre-treatment and on-treatment biopsies at the RP2D. (Phase II) II. To correlate changes in BAX and MCL-1 with response. (Phase II) III. To estimate the baseline inter-patient variability in p4EBP1, pS6, BAX, and MCL-1. (Phase II) IV. To explore exposure-response relationships between navitoclax and vistusertib exposure and the pharmacodynamic endpoints (safety, efficacy, and laboratory correlatives). (Phase II)
OUTLINE: This is a phase I, dose-escalation study followed by a phase II study.
Patients receive navitoclax orally (PO) once daily (QD) and vistusertib PO twice daily (BID) on days 1-28. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up for 30 days and then every 8-12 weeks for up to 2 years.
The effects of navitoclax and vistusertib on the developing human fetus are unknown; for this reason, women of child-bearing potential and men must agree to use adequate contraception prior to study entry, for the duration of study participation, and up to 90 days following completion of therapy; for women this should include one highly effective method of contraception and one barrier method as defined below
Highly effective methods include:
Barrier methods include:
Exclusion Criteria:
Patients receiving anticoagulation or anti-platelet therapy are excluded due to the risk of thrombocytopenia with navitoclax
Any of the following cardiac criteria:
Patients currently receiving medications or herbal supplements of the classes below are ineligible; patients are eligible if they stop use of these compounds at least 1 week prior to receiving any treatment on this protocol
Patients positive for human immunodeficiency virus (HIV) are not excluded from this study, but HIV-positive patients must have:
Patients receive navitoclax PO QD and vistusertib PO BID on days 1-28. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.
Biological: Navitoclax · Drug: Vistusertib
Given PO
Also known as: A-855071.0, ABT-263, BcI-2 Family Protein Inhibitor ABT-263
Given PO
Also known as: AZD 2014, AZD-2014, AZD2014
Number of Participants With Dose Limiting Toxicities (Phase I)
Graded by National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version (v) 4.0. The number of participants with dose limiting toxicities at each dose level will be reported with exact binomial 95% confidence intervals. All patients who receive at least 1 dose of both study drugs, regardless of their eligibility for the study, will be evaluable for toxicity.
Time frame: Up to 30 days after last treatment, an average of 3 months
Overall Response Rate (ORR) (Phase II)
Defined as Response Evaluation Criteria in Solid Tumors (RECIST) 1.1. partial response or complete response, of the combination in patients with recurrent small cell lung cancer. The ORR will be reported with its corresponding 95% confidence interval.
Time frame: Up to 1.5 years
Occurrence of a Bi-directional Pharmacokinetic (PK) Interaction
Concentrations of each study agent present in the blood at the specified time point are reported for each study agent.
Time frame: Through Day 15
Number of Participants Experiencing Adverse Events by Grade (Phase II)
Graded by NCI CTCAE v 4.0. The number of participants with toxicities by grade in the phase 2 study will be reported with exact binomial 95% confidence intervals.
Time frame: Up to 1.5 years
Progression Free Survival (PFS) (Phase II)
Based on RECIST 1.1. Standard life table methods will be used to analyze PFS. We will report the one-year and median PFS with 95% confidence intervals.
Time frame: Up to 1.5 years
Overall Survival (OS) at Year 1 (Phase II)
Standard life table methods will be used to analyze OS. We will report the one-year and median OS with 95% confidence intervals.
Time frame: At Year 1
Disease Control Rate (Phase II)
Based on RECIST 1.1. The proportion of patients achieving disease control will be reported with exact 95% binomial confidence intervals.
Time frame: Up to 1.5 years
Change in p4EBP1 Expression
Descriptive statistics and box plots with jittered data points will be used to visualize all raw data. Will be assessed with paired t-tests.
Time frame: Baseline up to 1.5 years
Change in Ratio p4EBP1/4EBP1
Descriptive statistics and box plots with jittered data points will be used to visualize all raw data. Will be assessed with paired t-tests.
Time frame: Baseline up to 1.5 years
Change in Ratio pS6/S6
Descriptive statistics and box plots with jittered data points will be used to visualize all raw data. Will be assessed with paired t-tests.
Time frame: Baseline up to 1.5 years
Change in BAX and MCl-1 Expression
Descriptive statistics and box plots with jittered data points will be used to visualize all raw data. Will be assessed with paired t-tests.
Time frame: Baseline up to 1.5 years
Pharmacodynamic Parameters
Exploratory correlative studies with pharmacodynamic (biological endpoints, toxicity and efficacy) will be analyzed using nonparametric statistics.
Time frame: Up to 1.5 years
Phase 1: 03/20/2018 - 11/11/2019 Phase 2: 7/29/2020 - 5/19/2021
| Milestone | Phase 1 - Dose Level 1 | Phase 1 - Dose Level 2 | Phase 2 |
|---|---|---|---|
| Started | 9 | 5 | 1 |
| Completed | 6 | 3 | 1 |
| Not completed | 3 | 2 | 0 |
| Withdrew: Disease progression | 3 | 1 | 0 |
| Withdrew: Adverse event | 0 | 1 | 0 |
Graded by National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version (v) 4.0. The number of participants with dose limiting toxicities at each dose level will be reported with exact binomial 95% confidence intervals. All patients who receive at least 1 dose of both study drugs, regardless of their eligibility for the study, will be evaluable for toxicity.
| Participants | Phase 1 - Dose Level 1 | Phase 1 - Dose Level 2 |
|---|---|---|
| DLT | 0 | 2 |
| No DLT | 6 | 1 |
Defined as Response Evaluation Criteria in Solid Tumors (RECIST) 1.1. partial response or complete response, of the combination in patients with recurrent small cell lung cancer. The ORR will be reported with its corresponding 95% confidence interval.
| Participants | Phase 2 |
|---|---|
| Partial Response (PR) or Complete Response (CR) | 0 |
| Stable Disease (SD) | 0 |
| Progression (PD) | 1 |
Concentrations of each study agent present in the blood at the specified time point are reported for each study agent.
| ng/ml | Navitoclax 150 mg + Vistusertib 35 mg | Navitoclax 250 mg + Vistusertib 35 mg | Navitoclax 250 mg Reduced to 150 mg + Vistusertib 35 mg |
|---|---|---|---|
| Navitoclax average of individual steady-state trough concentration (avg Cmin,ss) | 1145 ± 289 | 1966 ± 999 | 2283 |
| Navitoclax Cycle 1 Day 1 Concentration 6 hours after dose (C6h) | 1808 ± 980 | 3254 ± 1233 | — |
| Navitoclax Cycle 1 Day 15 Concentration 6 hours after dose (C6h) | 2260 ± 993 | 2830 ± 1190 | 3450 |
| Navitoclax Cycle 1 Day 15 maximum concentration (Cmax) | 2393 ± 913 | 3060 ± 1070 | 3910 |
| Vistusertib average of individual steady-state trough concentration (avg Cmin,ss) | 211 ± 207 | 559 ± 550 | 238.5 |
| Vistusertib Cycle 1 Day 1 Concentration 2 hours after dose (C2h) | 372 ± 266 | 419 ± 108 | — |
| Vistusertib Cycle 1 Day 15 Concentration 2 hours after dose (C2h) | 1061 ± 675 | 1032 ± 832 | 273 |
Graded by NCI CTCAE v 4.0. The number of participants with toxicities by grade in the phase 2 study will be reported with exact binomial 95% confidence intervals.
| participants | Phase 2 |
|---|---|
| Grade 1 Adverse Events | 1 |
| Grade 2 Adverse Events | 1 |
| Grade 3 Adverse Events | 0 |
| Grade 4 Adverse Events | 0 |
| Grade 5 Adverse Events | 0 |
Based on RECIST 1.1. Standard life table methods will be used to analyze PFS. We will report the one-year and median PFS with 95% confidence intervals.
| Participants | Phase 2 |
|---|---|
| Progression Free Survival (PFS) (Phase II) | 0 |
Standard life table methods will be used to analyze OS. We will report the one-year and median OS with 95% confidence intervals.
| Participants | Phase 2 |
|---|---|
| Overall Survival (OS) at Year 1 (Phase II) | 0 |
Based on RECIST 1.1. The proportion of patients achieving disease control will be reported with exact 95% binomial confidence intervals.
| Participants | Phase 2 |
|---|---|
| Disease Control Rate (Phase II) | 0 |
Descriptive statistics and box plots with jittered data points will be used to visualize all raw data. Will be assessed with paired t-tests.
No measurements were reported for this outcome.
Descriptive statistics and box plots with jittered data points will be used to visualize all raw data. Will be assessed with paired t-tests.
No measurements were reported for this outcome.
Descriptive statistics and box plots with jittered data points will be used to visualize all raw data. Will be assessed with paired t-tests.
No measurements were reported for this outcome.
Descriptive statistics and box plots with jittered data points will be used to visualize all raw data. Will be assessed with paired t-tests.
No measurements were reported for this outcome.
Exploratory correlative studies with pharmacodynamic (biological endpoints, toxicity and efficacy) will be analyzed using nonparametric statistics.
No measurements were reported for this outcome.
Collected over Up to 1.5 years. Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Phase 1 - Dose Level 1 | 6/9 (66.7%) | 2/9 (22.2%) | 9/9 (100%) |
| Phase 1 - Dose Level 2 | 3/5 (60%) | 2/5 (40%) | 5/5 (100%) |
| Phase 2 | 1/1 (100%) | 0/1 (0%) | 1/1 (100%) |
| Event | Phase 1 - Dose Level 1 | Phase 1 - Dose Level 2 | Phase 2 |
|---|---|---|---|
| Pleural effusionRespiratory, thoracic and mediastinal disorders | 0/9 | 2/5 | 0/1 |
| DyspneaRespiratory, thoracic and mediastinal disorders | 0/9 | 1/5 | 0/1 |
| HypokalemiaMetabolism and nutrition disorders | 0/9 | 1/5 | 0/1 |
| DiarrheaGastrointestinal disorders | 0/9 | 1/5 | 0/1 |
| HypoxiaRespiratory, thoracic and mediastinal disorders | 0/9 | 1/5 | 0/1 |
| Colonic obstructionGastrointestinal disorders | 1/9 | 0/5 | 0/1 |
| Enterocolitis infectiousInfections and infestations | 1/9 | 0/5 | 0/1 |
| Platelet count decreasedInvestigations | 1/9 | 0/5 | 0/1 |
| Blood bilirubin decreasedInvestigations | 1/9 | 0/5 | 0/1 |
| Event | Phase 1 - Dose Level 1 | Phase 1 - Dose Level 2 | Phase 2 |
|---|---|---|---|
| DiarrheaGastrointestinal disorders | 4/9 | 2/5 | 1/1 |
| NauseaGastrointestinal disorders | 3/9 | 3/5 | 1/1 |
| Abdominal PainGastrointestinal disorders | 2/9 | 1/5 | 1/1 |
| DyspepsiaGastrointestinal disorders | 1/9 | 0/5 | 1/1 |
| Non-cardiac chest painGeneral disorders | 1/9 | 0/5 | 1/1 |
| AnorexiaMetabolism and nutrition disorders | 1/9 | 3/5 | 1/1 |
| PruritusSkin and subcutaneous tissue disorders | 1/9 | 0/5 | 1/1 |
| Renal and urinary disordersRenal and urinary disorders | 0/9 | 0/5 | 1/1 |
| Skin disorderSkin and subcutaneous tissue disorders | 0/9 | 0/5 | 1/1 |
| Cognitive disturbanceNervous system disorders | 0/9 | 0/5 | 1/1 |
| Age, Continuous(years) | Phase 1 - Dose Level 1 | Phase 1 - Dose Level 2 | Phase 2 | Total |
|---|---|---|---|---|
| Median | 49 (35 to 74) | 67 (53 to 71) | 77 (77 to 77) | 60 (35 to 77) |
| Sex: Female, Male(Participants) | Phase 1 - Dose Level 1 | Phase 1 - Dose Level 2 | Phase 2 | Total |
|---|---|---|---|---|
| Female | 6 | 3 | 0 | 9 |
| Male | 3 | 2 | 1 | 6 |
| Ethnicity (NIH/OMB)(Participants) | Phase 1 - Dose Level 1 | Phase 1 - Dose Level 2 | Phase 2 | Total |
|---|---|---|---|---|
| Hispanic or Latino | 0 | 0 | 0 | 0 |
| Not Hispanic or Latino | 8 | 5 | 1 | 14 |
| Unknown or Not Reported | 1 | 0 | 0 | 1 |
| Race (NIH/OMB)(Participants) | Phase 1 - Dose Level 1 | Phase 1 - Dose Level 2 | Phase 2 | Total |
|---|---|---|---|---|
| American Indian or Alaska Native | 0 | 0 | 0 | 0 |
| Asian | 0 | 1 | 0 | 1 |
| Native Hawaiian or Other Pacific Islander | 0 | 0 | 0 | 0 |
| Black or African American | 1 | 0 | 0 | 1 |
| White | 7 | 4 | 1 | 12 |
| More than one race | 0 | 0 | 0 | 0 |
| Unknown or Not Reported | 1 | 0 | 0 | 1 |
| Region of Enrollment(participants) | Phase 1 - Dose Level 1 | Phase 1 - Dose Level 2 | Phase 2 | Total |
|---|---|---|---|---|
| United States | 9 | 5 | 1 | 15 |
| Weight(kg) | Phase 1 - Dose Level 1 | Phase 1 - Dose Level 2 | Phase 2 | Total |
|---|---|---|---|---|
| Median | 75 (58.5 to 86.8) | 68.5 (56.6 to 114.4) | 86.2 (86.2 to 86.2) | 75 (56.6 to 114.4) |
| Height(cm) | Phase 1 - Dose Level 1 | Phase 1 - Dose Level 2 | Phase 2 | Total |
|---|---|---|---|---|
| Median | 167.6 (162.6 to 188.0) | 165.0 (162.5 to 178.0) | 172.7 (172.7 to 172.7) | 167.6 (162.5 to 188) |
| Body Surface Area (BSA)(m^2) | Phase 1 - Dose Level 1 | Phase 1 - Dose Level 2 | Phase 2 | Total |
|---|---|---|---|---|
| Median | 1.90 (1.63 to 2.00) | 1.76 (1.62 to 2.31) | 2.03 (2.03 to 2.03) | 1.9 (1.62 to 2.31) |
2 further baseline measures are reported on the registry.
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