Targeted Therapy With CDK4/6 Inhibitors in Chemo-Refractory, Rb Wild-Type Extensive SCLC

NCT04010357 · Status: COMPLETED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 14

Last updated 2026-05-12

No results posted yet for this study

Summary

The purpose of this study is to:

* Test how well the study medicine Abemaciclib, a CDK4/6 inhibitor, works to shrink lung cancer tumors in the body.
* Test the safety of Abemaciclib when given to participants with small cell lung cancer (SCLC), large cell neuroendocrine lung cancer, extrapulmonary small cell cancers and other high grade neuroendocrine cancers of the lung. Specifically, this study is looking at SCLC, large cell neuroendocrine lung cancer, extrapulmonary small cell cancers and other high grade neuroendocrine cancers of the lung that have not responded to treatment (refractory) or come back after treatment with chemotherapy (relapsed) as the study medication has been shown to be effective any time the disease relapses not just in the first few months.

Conditions

  • Small-cell Lung Cancer
  • Large Cell Neuroendocrine Carcinoma of the Lung
  • Extrapulmonary Small Cell Carcinoma

Interventions

DRUG

Abemaciclib,

Abemaciclib (CDK4/6 inhibitors) is an investigational drug that works by interrupting the rapid and uncontrolled growth of cancer cells. Some cancer cells develop because their cells overrun the molecular brakes that normally permit cell to divide only when they are needed to replace old ones. These brakes are regulated by a group of enzymes known as cyclin-dependent kinases (CDKs). Alterations causing over-activity of two of these enzymes, CDK4 andCDK6, are found in a variety of cancers, including small cell lung cancer with retinoblastoma (Rb) protein.The drugs work by selectively turning off the overactive CDK4 and CDK6. As a result, the cancer cells' division cycle is halted, preventing them from proliferating.

Sponsors & Collaborators

  • Case Comprehensive Cancer Center

    lead OTHER

Principal Investigators

  • Afshin Dowlati, MD · Case Medical Center, University Hospitals Seidman Cancer Center, Case Comprehensive Cancer Center

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
19 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-01-13
Primary Completion
2026-04-30
Completion
2026-04-30
FDA Drug
Yes

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04010357 on ClinicalTrials.gov