New combo aims to keep lung cancer from returning in the chest
NCT ID NCT06771518
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This phase 2 trial tests whether adding chest radiotherapy to maintenance immunotherapy (atezolizumab) can better control extensive-stage small cell lung cancer. About 37 adults whose cancer shrank after initial chemo-immunotherapy will receive targeted radiation to the chest along with atezolizumab. The goal is to see if this combination reduces local tumor recurrence at one year compared to historical rates.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- atezolizumab
- What this could lead to
- If successful, this combination could reduce the chance of lung cancer returning in the chest after initial treatment, offering better local disease control.
- What could go wrong
- This is a small, early-phase trial with only 37 participants, so results may not apply broadly. The added radiotherapy may cause side effects like lung inflammation or fatigue.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 37 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2021
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Histological diagnosis of lung microcytoma; * Age ≥18 years; * Performance status according to ECOG 0-2; * Extended disease at the time of first line oncological treatment; * Initial staging and restaging after chemo-immunotherapy with CT, CT-PET FDG and brain MRI; * In at least partial response (defined according to the Recist criteria \[18\]) after treatment chemoimmunotherapy according to the Impower 133 scheme; * Haematological, respiratory toxicity ≤ G1, other toxicities ≤ G2 at the time of treatment radiotherapy; * Pulmonary function tests at the time of radiotherapy treatment compatible with irradiation: FEV≥1.2 l or \>40%, DLCO≥50%; * Written informed consent. Exclusion Criteria: * Previous radiotherapy treatment at the thoraco-mediastinal level; * In disease progression after chemo-immunotherapy treatment.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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"Regina Elena" National Cancer Institute
RECRUITINGRome, Rome, 00144, Italy
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