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A Study of Therapeutic Drug Monitoring-Based Atezolizumab Dosing

NCT06066138 · Status: RECRUITING · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 30

Last updated 2026-05-22

No results posted yet for this study

Summary

Background:

A type of drug called monoclonal antibody immune checkpoint inhibitors are often used in cancer treatment. These drugs help the body s immune system fight cancer by blocking proteins that cause cancer cells to grow. One of these drugs (atezolizumab) is approved to treat certain cancers. Researchers want to find out if lower doses of this drug might provide the same benefit with fewer adverse effects.

Objective:

To test different doses and timing of atezolizumab for people with cancer.

Eligibility:

People aged 18 years and older with cancer that has spread locally or to other organs. They must be eligible for treatment with the study drug.

Design:

Participants will be screened. They will have blood tests and imaging scans. They will provide a sample of tissue from their tumor.

Atezolizumab is administered through a tube attached to a needle inserted into a vein in the arm. Participants will take this drug alone or combined with other drugs prescribed for their care.

The first 2 treatments will be done per the FDA recommended dose and schedule. Before administering the second dose of the study drug, researchers will check the level of the drug in the participant s blood. Depending on those results, their 3rd dose will be scheduled 2 to 6 weeks later.

For the 3rd dose of the study drug, participants will switch to the FDA minimum dosage. Dosages of any other drugs will not change.

Researchers will continue to test the levels of the drug in participants blood before each treatment for 16 weeks. After that, these levels will be tested every 3 months.

Study treatment may last up to 2 years.

Conditions

  • Locally Advanced Alveolar Soft Part Sarcoma
  • Metastatic Alveolar Soft Part Sarcoma
  • Locally Advanced Non Small Cell Lung Cancer
  • Metastatic Non Small Cell Lung Cancer
  • Locally Advanced Small Cell Lung Cancer
  • Metastatic Small Cell Lung Cancer
  • Locally Advanced Hepatocellular Carcinoma
  • Metastatic Hepatocellular Carcinoma
  • Locally Advanced Melanoma
  • Metastatic Melanoma

Interventions

DRUG

Atezolizumab

Atezolizumab administered via IV at either 1,200 mg q3 weeks, or 1,680 mg q4 weeks for the first 2 doses followed by 840mg q2 weeks or q6 weeks.

Sponsors & Collaborators

  • National Cancer Institute (NCI)

    lead NIH

Principal Investigators

  • James L Gulley, M.D. · National Cancer Institute (NCI)

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
120 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-11-04
Primary Completion
2027-01-31
Completion
2028-01-31
FDA Drug
Yes

Countries

  • United States

Study Locations

More Related Trials

Entities

Drugs
Diseases

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 NCT06066138 on ClinicalTrials.gov