Several possible studies
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First personalised cancer vaccine cuts risk of disease returning in major trial (opens in a new tab)
bbc.com · 2026-10-23
Short answer
Several possible studiesStudy not confirmed.
Several potential source studies were identified, but no single match could be confirmed. The article's claims remain unverified.
These papers were considered as possible sources, but none could be confirmed as the study behind this story.
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The story
First personalised cancer vaccine cuts risk of disease returning in major trial
bbc.com · 2026-10-23
The story’s checkable claims.
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Multiple potential source studies identified.
Several studies match details in the article, but none could be confirmed as its source. The claims have not been assessed against a source study.
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Several studies could fit.
Several studies match details in the article, but none could be confirmed as its source. The claims have not been assessed against a source study.
Evidence layer
Claim by claim
The article's claims are listed below. Without a confirmed source study, they have not been assessed as supported or unsupported.
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Scan verdicts. Open evidence only when needed.
Claim 1 of 4Not checkedA personalised cancer vaccine given alongside the immunotherapy drug Keytruda cut the risk of patients dying or their skin cancer returning by 42% in a major clinical trial.View evidenceHide evidence
As stated42%
Not checked
No source study was confirmed for this article. This claim remains unverified, rather than assessed as supported or unsupported.
Claim 2 of 4Not checkedThe trial found the drug combination reduced the risk of melanoma spreading by 38% over two years compared with immunotherapy alone.View evidenceHide evidence
As stated38% over two years
Not checked
No source study was confirmed for this article. This claim remains unverified, rather than assessed as supported or unsupported.
Claim 3 of 4Not checkedThe study involved 1,137 adults, most of whom received Keytruda plus the experimental personalised vaccine while the rest received a placebo or dummy drug alongside immunotherapy.View evidenceHide evidence
As stated1,137 adults; about two-thirds received the vaccine
Not checked
No source study was confirmed for this article. This claim remains unverified, rather than assessed as supported or unsupported.
Claim 4 of 4Not checkedIndependent experts said the results were impressive but that longer-term studies are still needed to establish whether the treatment helps most patients live longer on average.View evidenceHide evidence
Not checked
No source study was confirmed for this article. This claim remains unverified, rather than assessed as supported or unsupported.
Method layer
Study not confirmed.
The search results are available for you to inspect. Without a confirmed source study, they cannot establish whether the story’s claims are supported or contradicted.
Search results
Candidate papers, not confirmed sources.
PubMed, Europe PMC, Crossref · 15 candidate papers
Emerging immunotherapies in melanoma beyond immune checkpoint inhibitors: Vaccines, intralesional therapies, adoptive cell therapies, and T-cell engagers.
Cancer Treatment and Research Communications · 2026 · PubMed, Europe PMC
1098P Mechanisms of recurrence following mRNA-4157 (V940) plus pembrolizumab or pembrolizumab alone in resected melanoma from the mRNA-4157-P201 (KEYNOTE-942) trial
Annals of Oncology · 2024 · Crossref
Personalized mRNA Neoantigen Vaccines Reach Phase III: A Critical Commentary on the INTerpath-001 Melanoma Trial
2026 · Europe PMC
Vaccines for Cancer: A Translational Science Review.
JAMA · 2026 · PubMed, Europe PMC
SWOG S1801: Neoadjuvant Pembrolizumab Improves Event-Free Survival in Stage III-IV Melanoma
Default Digital Object Group · 2022 · Crossref