Testing the Addition of Radiation Therapy to the Usual Immune Therapy Treatment (Atezolizumab) for Extensive Stage Small Cell Lung Cancer, The RAPTOR Trial

Conditions

• Extensive Stage Lung Small Cell Carcinoma

Eligibility Criteria

Sex

ALL

Age

18 Years - N/A

Healthy Volunteers

Not accepted

Interventions

• Atezolizumab — DRUG
  Given IV
• Biospecimen Collection — PROCEDURE
  Undergo blood and tissue collection
• Computed Tomography — PROCEDURE
  Undergo CT
• Magnetic Resonance Imaging — PROCEDURE
  Undergo MRI
• Positron Emission Tomography — PROCEDURE
  Undergo PET
• Radiation Therapy — RADIATION
  Undergo radiation therapy

Study Details

This phase II/III trial compares the effect of adding radiation therapy to the usual maintenance therapy with atezolizumab versus atezolizumab alone in patients who have already received atezolizumab plus chemotherapy for the treatment of small cell lung cancer that has spread outside of the lung or to other parts of the body (extensive stage). Immunotherapy with monoclonal antibodies, such as atezolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. Giving radiation therapy in addition to atezolizumab may extend the time without extensive small cell lung cancer growing or spreading compared to atezolizumab alone.

Key Dates

Start date

Jan 7, 2021

Status verified

Apr 2026

Primary completion

Apr 30, 2027

Completion

Apr 30, 2027

Study Design

Enrollment

138 participants (estimated)

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Arms

• Active Comparator: Arm I (atezolizumab)
  Patients receive atezolizumab IV over 30 minutes +/- 10 minutes on day 1. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients undergo PET/CT scan, CT, and MRI throughout the trial. Patients also undergo blood and tissue collection throughout the trial.
• Experimental: Arm II (atezolizumab, radiation therapy)
  Patients receive atezolizumab IV over 30 minutes +/- 10 minutes on day 1. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients undergo radiation therapy QD on days 1-5 during weeks 1-5 only. Patients undergo PET/CT scan, CT, and MRI throughout the trial. Patients also undergo blood and tissue collection throughout the trial.

Primary Outcome Measure

Progression-free survival (PFS) (Phase II) [ Time Frame: From randomization to any documented progression or death due to any cause, whichever occurs first, assessed up to 6 years ]

Locations (416)

Find similar trials in Birmingham, AL

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