# A whole-population cancer interception programme: risk-stratify every adult, detect and intercept early

Source: https://onco.cc/ideas/idea-moon-population-interception/  
OnCo record `idea-moon-population-interception` (Idea). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

Instead of separate screening programmes for a few cancers, assess every adult's overall cancer risk and offer blood tests, imaging and preventive treatment tuned to that risk, all inside one system that learns.

## Summary

Screening today covers a handful of cancers with organ-specific programmes and reaches a fraction of eligible people. Multi-cancer early detection blood tests (NHS-Galleri, PATHFINDER 2) and polygenic, exposure and imaging-based risk models make a unified approach conceivable: every adult over 40 receives a risk profile, a personalised detection schedule, and where indicated interception (chemoprevention, vaccines, risk-reducing procedures), with all results feeding a national learning system that recalibrates the models. Overdiagnosis is controlled through molecular indolence classifiers and surveillance-first protocols.

## Fields

- Kind: Idea
- Last checked: 2026-09-08
- Hypothesis: A unified risk-stratified programme reduces late-stage (III/IV) cancer incidence across all cancers by at least 20% within a decade at acceptable cost per life-year, without increasing overtreatment of indolent disease.
- Rationale: Stage at diagnosis is the strongest determinant of survival, most cancers have no screening, and organ-by-organ programmes cannot scale to thirty diseases. Risk models and blood-based detection convert the problem into a systems problem.
- Proposed test: A regional cluster-randomised implementation of the programme versus standard screening with stage-shift, cancer-specific mortality and overdiagnosis metrics at five years, building on the NHS-Galleri infrastructure.
- Maturity: speculative
- Actor: policy

## Sources

- Bottleneck evidence (The hardest cancers are found late): Crosby et al., Early detection of cancer (Science 2022): https://doi.org/10.1126/science.aay9040

## Connected records

- ideas: [FAPI PET as the workup for MCED positives](https://onco.cc/ideas/idea-mced-plus-fapi/)
- technologies: [Chemoprevention & risk-reducing surgery](https://onco.cc/technologies/chemoprevention/), [Liquid biopsy (ctDNA)](https://onco.cc/technologies/liquid-biopsy/), [Multi-cancer early detection (MCED)](https://onco.cc/technologies/mced/), [Whole-body MRI](https://onco.cc/technologies/whole-body-mri/)
- drugs: [Galleri](https://onco.cc/drugs/galleri/)
- terms: [Positive predictive value (PPV)](https://onco.cc/terms/ppv/), [Stage shift](https://onco.cc/terms/stage-shift/)
- trials: [NHS-Galleri](https://onco.cc/trials/nhs-galleri/), [PATHFINDER 2](https://onco.cc/trials/pathfinder-2/)
- bottlenecks: [Overdiagnosis and false alarms](https://onco.cc/bottlenecks/b-overdiagnosis/), [Prevention we already have is not deployed](https://onco.cc/bottlenecks/b-prevention-adoption/), [The hardest cancers are found late](https://onco.cc/bottlenecks/b-early-detection/)
- key papers: [Early detection of cancer](https://onco.cc/key-papers/paper-crosby-science/)

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