Can a cancer drug stop lung cancer before it starts?

NCT ID NCT03634241

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This phase II trial tested whether the immunotherapy drug pembrolizumab (Keytruda) can prevent lung cancer in 45 people with high-risk lung nodules or early-stage non-small cell lung cancer. Participants received pembrolizumab intravenously, and researchers tracked tumor response and survival. The goal was to see if the drug could shrink or stabilize nodules and prevent progression to full-blown cancer.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
Pembrolizumab (Keytruda)
What this could lead to
If successful, this could point toward a way to prevent lung cancer from developing in people with suspicious lung nodules.
What could go wrong
This is a small, early-phase trial with only 45 participants and no comparison group, so results may not apply broadly. Pembrolizumab can cause immune-related side effects.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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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.

Contacts and locations

Locations

  • Laura and Isaac Perlmutter Cancer Center at NYU Langone

    New York, New York, 10016, United States

  • M D Anderson Cancer Center

    Houston, Texas, 77030, United States

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