A personalized vaccine made from a patient's own tumor was tested with an immune drug in small cell lung cancer
Original title: Personalized tumor-loaded monocyte-derived dendritic cell vaccination in combination with atezolizumab as maintenance treatment in extensive-stage small cell lung cancer (ES-SCLC): phase Ib-II VENEZOLUNG trial.
How far along is this research?
- Lab cells
- Animals
- Review
- Tested in people
This was tested in people. That is the most reliable kind of research we share.
This was an early, small trial in people that was mainly checking safety, not proving it works.
The short version
A small, early trial found this vaccine was safe to give, but it could not prove it helps people live longer.
What was studied. 20 people with small cell lung cancer that had spread took part. Six of them had cancer that had spread to the brain. Doctors made a vaccine from each person's own immune cells and their own tumor, then gave it as a shot in the skin along with the drug atezolizumab in a vein, after standard chemotherapy.
What they found. 18 people got the vaccine. It was well tolerated. The only side effect from the shot was mild, short lasting skin irritation where the needle went in. Most of the serious side effects came from the chemotherapy, not the vaccine. Of 18 people who could be measured, 17 (94.4%) had their cancer shrink or stop growing. Half of the people lived longer than 11.2 months. Six people lived much longer, from 23.4 to 36.2 months.
What this means, and what it doesn't
What it could mean: This tells doctors the vaccine is safe enough to keep studying. A few people in the trial lived a long time, which the researchers think may be a good sign. It does not tell you whether the vaccine itself caused that.
What it doesn't mean: This does not mean a new treatment is ready for you. This was an early trial in only 20 people, with no comparison group, so there is no way to know if the vaccine helped. The researchers say plainly that they cannot tell how well it worked. The vaccine has to be made from each person's own tumor and immune cells in a lab, which is not something a regular clinic can do today. This trial was in small cell lung cancer, not in tumors that start in the brain, though six people had cancer that had spread to the brain. This is not a promise of a cure.
Source: PubMed, July 24, 2026 · Read the original
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