Clinical Trial Details
— Status: Completed
Administrative data
NCT number |
NCT06049966 |
Other study ID # |
UPI-2023-2304 |
Secondary ID |
|
Status |
Completed |
Phase |
Phase 1
|
First received |
|
Last updated |
|
Start date |
March 1, 2018 |
Est. completion date |
May 1, 2023 |
Study information
Verified date |
September 2023 |
Source |
Oncology Center of Biochemical Education And Research |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Interventional
|
Clinical Trial Summary
Large Cell Neuroendocrine Carcinoma (LCNEC) is a rare and aggressive form of cancer that
presents significant challenges regarding treatment options and prognosis. In this trial, the
effectiveness of Atezolizumab in treating metastatic LCNEC was evaluated. Atezolizumab is an
anti-PD-L1 antibody that has shown promising results in other types of cancer, such as
small-cell lung Cancer and non-small-cell lung cancer. The trial aimed to assess the efficacy
and safety of atezolizumab in combination with chemotherapy as a potential treatment option
for treatment-naive patients with metastatic LCNEC The trial was conducted as an open-label,
non-randomized study, comparing Atezolizumab plus platinum etoposide to platinum etoposide
alone in patients with metastatic LCNEC.
Description:
This trial is a prospective clinical study to evaluate the effectiveness of a combination
treatment regimen for patients with metastatic Large Cell Neuroendocrine Carcinoma (LCNEC)
originating from the lung. The trial occurred between March 2018 and August 2022 at the 3rd
Department of Medicine, Kapodistrian Medical School of Athens. The institutional review board
of Sotiria Chest Diseases Hospital of Athens approved it. The trial adhered to Good Clinical
Practice guidelines and the Declaration of Helsinki, and all patients or their legal
representatives provided informed consent.
Patients:
The trial enrolled patients with metastatic LCNEC originating from the lung. Eligible
patients had not received prior systemic treatment for LCNEC. Patients with brain metastases
at diagnosis underwent Whole Brain Radiotherapy (WBRT) before starting systemic treatment.
Study Design:
The experimental group received a combination treatment regimen consisting of four cycles of
Carboplatin, Etoposide, and Atezolizumab every 21 days.
Patients who achieved stable disease (SD) or a response (partial or complete) continued
maintenance treatment with Atezolizumab until disease progression or discontinuation due to
severe adverse events.
The control group received four cycles of Carboplatin and Etoposide. Immune checkpoint
inhibitors were not allowed in later lines of treatment for the control group.
Response to therapy was assessed using CT scans and physical evaluations.
Endpoints:
Progression Free Survival (PFS): The time from treatment initiation to disease progression or
death.
Overall Survival (OS): The time from treatment initiation to death. Overall Response Rate
(ORR): The percentage of patients with a complete or partial response based on RECIST v1.1
criteria.
Duration of Response (DoR): The length of time the disease responded to treatment without
progression on imaging studies.
Procedure:
Patients were treated at the 3rd Department of Medicine, Kapodistrian Medical School of
Athens.
Approval for immunotherapy was obtained from the National Organisation for the Provision of
Health Services (EOPYY) for each patient.
Blood samples for miR-375 and miR-21 analysis were collected at specific time points and
processed according to standard procedures.
Analysis of miRNA expression was performed using the miRCURY LNA SYBR Green PCR Kit.
Statistical Analysis:
Rstudio was used for statistical analysis. The trial did not include a power analysis. The
intention-to-treat principle was followed. Kaplan-Meier methods and Cox Regression survival
analysis were used to estimate PFS and OS.
An analysis of the significance of the difference in characteristics between the experimental
and control groups was conducted.
miR-21 and miR-375 Analysis:
Control samples for miR-21 and miR-375 were collected from volunteers without a cancer
diagnosis, matching age with LCNEC patients.
Blood samples were collected at specific time points and processed to isolate plasma.
RNA was isolated from plasma samples, followed by cDNA synthesis and miRNA quantification
using the miRCURY LNA SYBR Green PCR Kit.
MiR-103a-3p was used as a reference gene. Real-time PCR was performed to quantify miRNAs, and
the results were expressed relative to the control group.