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Patients receive lutetium Lu 177 dotatate IV over 30-40 minutes on day 1 of each cycle. Treatment repeats every 56 days for 4 cycles in the absence of disease progression or unacceptable toxicity. Patients undergo PET during screening. Patients also undergo CT or MRI during screening and on the trial as well as FDG PET and SPECT on the trial. Additionally, patients undergo blood and tissue sample collection during screening and on the trial.

Patients receive everolimus PO QD on days 1-28 of each cycle. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. Patients with disease progression may be able to cross-over to Arm I. Patients undergo PET during screening. Patients also undergo CT or MRI during screening and on the trial as well as FDG PET and SPECT on the trial. Additionally, patients undergo blood and tissue sample collection during screening and on the trial.

Undergo blood and tissue sample collection

Biospecimen Collection

Computed Tomography

Fludeoxyglucose F-18

Lutetium Lu 177 Dotatate

Positron Emission Tomography

Single Photon Emission Computed Tomography

Site Public Contact

Andrew E. Hendifar

Joshua Lukenbill

Thomas A. Hope

Jennifer A. Chan

Thorvardur R. Halfdanarson

Sukhmani K. Padda

Liza C. Villaruz

Heloisa P. Soares

Thomas A Hope

This phase II trial studies the effect of lutetium Lu 177 dotatate compared to the usual treatment (everolimus) in treating patients with somatostatin receptor positive bronchial neuroendocrine tumors that have spread to other places in the body (advanced). Radioactive drugs, such as lutetium Lu 177 dotatate, may carry radiation directly to tumor cells and may reduce harm to normal cells. Lutetium Lu 177 dotatate may be more effective than everolimus in shrinking or stabilizing advanced bronchial neuroendocrine tumors.

PRIMARY OBJECTIVE:

I. To compare progression-free survival (PFS) of receiving lutetium Lu 177 dotatate to that of receiving everolimus in patients with bronchial neuroendocrine tumor (NET).

SECONDARY OBJECTIVES:

I. To compare the overall survival (OS) of receiving lutetium Lu 177 dotatate versus everolimus in patients with bronchial NET.

II. To compare the overall response rate (ORR) associated with lutetium Lu 177 dotatate versus everolimus in patients with bronchial NET.

III. To evaluate and compare the toxicity profile of lutetium Lu 177 dotatate and everolimus.

EXPLORATORY OBJECTIVES:

I. To study late toxicities of lutetium Lu 177 dotatate therapy including renal dysfunction, myelodysplastic syndrome, and acute leukemia.

II. To study the impact of pretreatment disease burden, somatostatin receptor status on lutetium Lu 177 dotatate (DOTATATE) positron emission tomography (PET) (or other somatostatin receptor \[SSTR\]-PET), and measured dosimetry of response.

III. To evaluate the response rate (RR) and other efficacy parameters in typical and atypical carcinoid based on central retrospective pathology review.

OUTLINE: Patients are randomized to 1 of 2 arms.

ARM I: Patients receive lutetium Lu 177 dotatate intravenously (IV) over 30-40 minutes on day 1 of each cycle. Treatment repeats every 56 days for 4 cycles in the absence of disease progression or unacceptable toxicity. Patients undergo positron emission tomography (PET) during screening. Patients also undergo computed tomography (CT) or magnetic resonance imaging (MRI) during screening and on the trial as well as fludeoxyglucose F-18 (FDG) PET and single photon emission computed tomography (SPECT) on the trial. Additionally, patients undergo blood and tissue sample collection during screening and on the trial.

ARM II: Patients receive everolimus orally (PO) once daily (QD) on days 1-28 of each cycle. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. Patients with disease progression may be able to cross-over to Arm I. Patients undergo PET during screening. Patients also undergo CT or MRI during screening and on the trial as well as FDG PET and SPECT on the trial. Additionally, patients undergo blood and tissue sample collection during screening and on the trial.

After completion of study treatment, patients are followed up every 3 months until disease progression and then every 6 months for up to 5 years following study registration.

Testing Lutetium Lu 177 Dotatate in Patients With Somatostatin Receptor Positive Advanced Bronchial Neuroendocrine Tumors

Randomized Phase II Trial of Lutetium Lu 177 Dotatate Versus Everolimus in Somatostatin Receptor Positive Bronchial Neuroendocrine Tumors

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The incidence of grade 3+ late toxicities will be analyzed in a descriptive manner. Incidence will be described for each treatment arm. Frequency tables will be reviewed for patterns.

The proportion of patients in each carcinoid group with either CR or PR as their best response will be estimated using point estimates and 95% CIs according to the methods in Duffy and Santner. ORR will be compared between treatment arms using the 2-sample z-test to compare sample proportion at a one-sided 5% level of significance.

Will be compared between patients with a bronchial neuroendocrine tumor (NET) receiving lutetium Lu 177 dotatate to those receiving everolimus. The distribution of PFS will be estimated using the Kaplan Meier method. Will be tested using a one-sided stratified log rank test. The median PFS, along with 90% confidence intervals (CIs), will be estimated for the two treatment groups.

The distribution of OS will be estimated using the method of Kaplan-Meier. The median OS, along with 90% CIs, will be estimated by the two treatment groups. OS will be compared between the two between treatment arms using the stratified log-rank test at a one-sided 10% level of significance.

Defined as the proportion of patients in each arm whose best response is either complete response (CR) or partial response (PR). Will be estimated using point estimates and 95% CIs according to the methods in Duffy and Santner.

Will evaluate and compare the toxicity profile of lutetium Lu 177 dotatate and everolimus. As per National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version (v)5.0, the term toxicity is defined as adverse events that are classified as either possibly, probably, or definitely related to the study treatment.

National Cancer Institute (NCI)

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Patients receive cabozantinib S-malate PO QD on days 1-28 of each cycle. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. Patients also undergo CT, MRI, and/or x-ray imaging during screening and on study.

Patients receive placebo PO QD on days 1-28 of each cycle. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. Patients also undergo CT, MRI, and/or x-ray imaging during screening and on study. Patients may crossover to receive cabozantinib S-malate at the time of disease progression.

Cabozantinib S-malate

Magnetic Resonance Imaging

Placebo Administration

Quality-of-Life Assessment

X-Ray Imaging

Jennifer A Chan

This phase III trial studies cabozantinib to see how well it works compared with placebo in treating patients with neuroendocrine or carcinoid tumors that may have spread from where it first started to nearby tissue, lymph nodes, or distant parts of the body (advanced). Cabozantinib is a chemotherapy drug known as a tyrosine kinase inhibitor, and it targets specific tyrosine kinase receptors, that when blocked, may slow tumor growth.

PRIMARY OBJECTIVES:

I. To determine whether cabozantinib S-malate (cabozantinib) can significantly improve progression-free survival (PFS) compared to placebo in patients with advanced pancreatic neuroendocrine tumors (NET) whose disease has progressed after prior therapy.

II. To determine whether cabozantinib can significantly improve progression-free survival (PFS) compared to placebo in patients with advanced carcinoid tumors whose disease has progressed after prior therapy.

SECONDARY OBJECTIVES:

I. To determine whether cabozantinib can significantly improve overall survival (OS) compared to placebo in patients with advanced pancreatic NET whose disease has progressed after prior therapy.

II. To determine whether cabozantinib can significantly improve overall survival (OS) compared to placebo in patients with advanced carcinoid tumors whose disease has progressed after prior therapy.

III. To evaluate safety and tolerability of cabozantinib versus placebo in patients with advanced pancreatic NET using Common Terminology Criteria for Adverse Events (CTCAE) and Patient-Reported Outcomes Version of the Common Terminology Criteria for Adverse Events (PRO-CTCAE).

IV. To evaluate safety and tolerability of cabozantinib versus placebo in patients with advanced carcinoid tumors using CTCAE and PRO-CTCAE.

V. To evaluate the overall radiographic response rate of cabozantinib versus placebo in patients with advanced pancreatic NET whose disease has progressed after prior therapy.

VI. To evaluate the overall radiographic response rate of cabozantinib versus placebo in patients with advanced carcinoid tumors whose disease has progressed after prior therapy.

OTHER OBJECTIVE:

I. Results of the primary analysis will be examined for consistency, while taking into account the stratification factors and/or covariates of baseline quality of life (QOL) and fatigue.

QUALITY OF LIFE SUBSTUDY OBJECTIVE:

I. To compare overall quality of life, disease-related symptoms, and other domains between the two treatment groups (cabozantinib versus \[vs.\] placebo) within each cohort of patients (pancreatic NET vs. carcinoid tumor). (Quality of Life Substudy Objective - A021602-HO1)

POPULATION PHARMACOKINETICS SUBSTUDY OBJECTIVE:

I. To describe the population pharmacokinetic and exposure-response relationships of cabozantinib in patients with advanced neuroendocrine tumors. (Population Pharmacokinetics Substudy Objective - A021602-PP1)

OUTLINE: Patients are randomized to 1 of 2 arms.

ARM I: Patients receive cabozantinib S-malate orally (PO) once daily (QD) on days 1-28 of each cycle. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. Patients also undergo computed tomography (CT), magnetic resonance imaging (MRI), and/or x-ray imaging during screening and on study.

ARM II: Patients receive placebo PO QD on days 1-28 of each cycle. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. Patients also undergo CT, MRI, and/or x-ray imaging during screening and on study. Patients may crossover to receive cabozantinib S-malate at the time of disease progression.

After completion of study treatment, patients are followed up every 12 weeks until disease progression or start of new anticancer therapy, and then every 6 months until 8 years after registration.

Testing Cabozantinib in Patients With Advanced Pancreatic Neuroendocrine and Carcinoid Tumors

Randomized, Double-Blinded Phase III Study of CABozantinib Versus Placebo IN Patients With Advanced NEuroendocrine Tumors After Progression on Prior Therapy (CABINET)

Will be assessed per Response Evaluation Criteria in Solid Tumors 1.1 determined by retrospective independent central review. Will be compared between treatment arms using the stratified log rank test at one-sided level 0.025. The stratification factors will be used for the analysis. The hazard ratio (HR) for PFS will be estimated using a stratified Cox proportional hazards model, and the 95% confidence interval (CI) for the HR will be provided. Results from an unstratified analysis will also be provided. Kaplan-Meier methodology will be used to estimate the median PFS for each treatment arm, and Kaplan-Meier curves will be produced. Brookmeyer Crowley methodology will be used to construct the 95% CI for the median PFS for each treatment arm.

The analyses for OS will follow intent-to-treat (ITT) principle and will be conducted separately within each cohort (pancreatic neuroendocrine tumor \[NET\] and carcinoid tumor). The distribution of OS will be estimated using the method of Kaplan-Meier. The median OS, along with the 95% CI, will be estimated by the two treatment groups. Overall survival will be compared between treatment arms using the stratified log-rank test at a one-sided cumulative 2.5% level of significance. The stratified Cox regression will be used to estimate the HR of OS, along with the 95% CI. A hierarchical approach will be used to control for family-wise type-I error rate, therefore OS will be formally statistically tested only if the primary efficacy endpoint, PFS, is statistically significantly different between the two treatment groups.

For CTCAE data, the frequency tables will be reviewed to determine the patterns. The overall adverse event rates will be compared between treatment groups using Chi-square test (or Fisher's exact test if the data in contingency table is sparse). PRO-CTCAE data will, at minimum, be analyzed similarly to CTCAE data. The initial analysis of each PRO-CTCAE item will use all available scores in an analysis which mirrors the approach used for the CTCAE data. Supplemental analysis will use model-based multiple imputation incorporating baseline patient characteristics and physician-rated performance status. CTCAE data may be incorporated as auxiliary data into multiple imputation models for AEs which are captured by both PRO-CTCAE and CTCAE. Results from supplemental analysis will be descriptively compared to the results of the initial analysis to assess the robustness of results to missing data. Additional analyses of PRO-CTCAE data beyond those specified above may be undertaken.

Will be defined as the proportion of patients in each arm whose best response is either complete response (CR) or partial response (PR). Radiographic response rate for both cohorts: the analyses for confirmed radiographic response rate will follow the ITT principle and will be conducted separately within each cohort (pancreatic NET and carcinoid tumor). The proportion of patients with either confirmed CR or confirmed PR as their best response will be estimated using point estimates and 95% confidence intervals. Radiographic response rate will be compared between treatment arms using the 2-sample z-test to compare sample proportion at a one-sided 2.5% level of significance.

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
Testing Lutetium Lu 177 Dotatate in Patients With Somatostatin Receptor Positive Advanced Bronchial Neuroendocrine Tumors	NCT04665739	Advanced Lung N... Functioning Lun... Locally Advance... Lung Neuroendoc... Lung Neuroendoc... Lung Neuroendoc... Metastatic Lung... Metastatic Lung... Non-Functioning... Recurrent Lung ... Unresectable Lu... Unresectable Lu...	Biospecimen Col... Computed Tomogr... Everolimus Fludeoxyglucose... Lutetium Lu 177... Positron Emissi... Single Photon E...	18 Years -	National Cancer Institute (NCI)
Testing Cabozantinib in Patients With Advanced Pancreatic Neuroendocrine and Carcinoid Tumors	NCT03375320	Carcinoid Tumor Functioning Pan... Intermediate Gr... Locally Advance... Locally Advance... Locally Advance... Locally Advance... Locally Advance... Low Grade Lung ... Lung Neuroendoc... Lung Neuroendoc... Metastatic Dige... Metastatic Dige... Metastatic Lung... Metastatic Lung... Metastatic Panc... Metastatic Panc... Metastatic Thym... Neuroendocrine ... Neuroendocrine ... Non-Functioning... Pancreatic Sero... Thymic Neuroend... Unresectable Di... Unresectable Di... Unresectable Lu... Unresectable Pa... Unresectable Th...	Cabozantinib S-... Computed Tomogr... Magnetic Resona... Placebo Adminis... Quality-of-Life... X-Ray Imaging	18 Years -	National Cancer Institute (NCI)

Spots Global Cancer Trial Database for unresectable lung neuroendocrine neoplasm