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Evaluation

WG methylation on CCGA substudy 1 training set: cancer signal sensitivity at 98% specificity under 10-fold cross-validation

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Evaluation results

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Tested configurationProtocol and datasetFindingEvidence and details
Configuration: Whole-genome methylation classifier (GRAIL prototype), CCGA substudy 1Protocol: CCGA substudy 1 training set: cancer signal sensitivity at 98% specificity under 10-fold cross-validation
Dataset: CCGA substudy 1 training set (1,414 analysable participants)
39% (36%–43%) Sensitivity at 98% specificity (training set, post hoc 98% specificity threshold)
percent · higher

Uncertainty: 95% CI 36 to 43. Clopper-Pearson exact binomial interval (STAR Methods, statistical analysis)

Coverage: Not reported scored / Not reported eligible

Author-reported evaluation · Source checked
Methods, coverage and source

WG methylation on CCGA substudy 1 training set: cancer signal sensitivity at 98% specificity under 10-fold cross-validation

ctdnajam-20261010-protocol-ccga1-training-cv-sens-98spec

Aggregation: Not reported

Evaluation of cell-free DNA approaches for multi-cancer early detection · Table 3, row 'WG methylation', training set, sensitivity and TP/total cancer samples 328/833

Source checking is not independent reproduction. Release 2026-10-10-cbb3da59bc08.

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Release 2026-10-10-cbb3da59bc08 · Evidence verified: Not verified

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  • Metrics are recomputed from the saved predictions: not yet verified

Verified: Not verified

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  • Score meaning and direction are confirmed: not yet verified
  • Metrics are recomputed from the saved predictions: not yet verified
  • Sample annotations are recorded: not yet verified
  • Dependence between samples is assessed: not yet verified

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  • Overlap with training data is checked: not yet verified

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Evaluation procedure

CCGA substudy 1 training set: cancer signal sensitivity at 98% specificity under 10-fold cross-validation

Configuration
Whole-genome methylation classifier (GRAIL prototype), CCGA substudy 1
Protocol
CCGA substudy 1 training set: cancer signal sensitivity at 98% specificity under 10-fold cross-validation
Dataset
CCGA substudy 1 training set (1,414 analysable participants)
origin
Author-reported evaluation
configuration
Primary source as retrieved 2026-10-10
protocol id
ctdnajam-20261010-protocol-ccga1-training-cv-sens-98spec
dataset version
CCGA substudy 1 training set
population
833 cancers and 560 non-cancers
split
10-fold cross-validation within the training set
inputs
Whole-genome bisulfite sequencing of cfDNA, about 30x
adaptation
Trained on the CCGA substudy 1 training set
metric implementation
Sensitivity at a post hoc 98% specificity threshold; Clopper-Pearson 95% CI
aggregation
Pooled over participants
budget
Not reported

Metadata review: source checked. Unreported conditions prevent automatic comparisons.

Reproduction

Split
10-fold cross-validation within the training set
Adaptation
Trained on the CCGA substudy 1 training set
Scoring implementation
Sensitivity at a post hoc 98% specificity threshold; Clopper-Pearson 95% CI

No execution recipe has been verified for this exact configuration and evaluation. A benchmark's general instructions may use different inputs, splits or model settings.

Reproducing this published result requires matching its model configuration, data, split and scorer. Source checking or a successful smoke test does not establish score reproduction.

Evidence

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Evidence table

Inspect claims, sources and review details

Trace each statement to its source and review. A context-only reference supports the record generally; it does not verify an individual field. Source checking does not reproduce an experiment.

One row per statement and cited source. Multiple citations are not independent evaluations. Shared locators are labelled explicitly.

19 evidence rows matching the loaded filters

Claims, original sources and review scope · Release 2026-10-10-cbb3da59bc08
Property and statementOriginal source and locationReview and provenance
Comparison: adaptation
Trained on the CCGA substudy 1 training set
Context-only references
Evaluation of cell-free DNA approaches for multi-cancer early detection

Original source ↗

Table 3, row 'WG methylation', training set columns

Version: Cancer Cell 40(12):1537-1549.e12, published 2022-12-12; publisher PDF (1-s2.0-S153561082200513X-main.pdf) as deposited by the Francis Crick Institute on figshare, 10.25418/crick.21731870.v1
Retrieved: 2026-10-10T06:05:17Z

not individually reviewed

No individual claim review recorded

author reported

Audit details

Field: attributes.comparison.adaptation

Source artifact SHA-256: 5159294dd203d511dd437837a34555b276e14e0edf615bcb58bae5d9a1246d9a

Hash scope: pdftotext -layout text layer, parsed by extract/extract_ctdna_jamshidi.py

Inspected artifact

Comparison: aggregation
Pooled over participants
Context-only references
Evaluation of cell-free DNA approaches for multi-cancer early detection

Original source ↗

Table 3, row 'WG methylation', training set columns

Version: Cancer Cell 40(12):1537-1549.e12, published 2022-12-12; publisher PDF (1-s2.0-S153561082200513X-main.pdf) as deposited by the Francis Crick Institute on figshare, 10.25418/crick.21731870.v1
Retrieved: 2026-10-10T06:05:17Z

not individually reviewed

No individual claim review recorded

author reported

Audit details

Field: attributes.comparison.aggregation

Source artifact SHA-256: 5159294dd203d511dd437837a34555b276e14e0edf615bcb58bae5d9a1246d9a

Hash scope: pdftotext -layout text layer, parsed by extract/extract_ctdna_jamshidi.py

Inspected artifact

Comparison: budget
Not reported
Context-only references
Evaluation of cell-free DNA approaches for multi-cancer early detection

Original source ↗

Table 3, row 'WG methylation', training set columns

Version: Cancer Cell 40(12):1537-1549.e12, published 2022-12-12; publisher PDF (1-s2.0-S153561082200513X-main.pdf) as deposited by the Francis Crick Institute on figshare, 10.25418/crick.21731870.v1
Retrieved: 2026-10-10T06:05:17Z

missing or unspecified

No individual claim review recorded

author reported

Audit details

Field: attributes.comparison.budget

Source artifact SHA-256: 5159294dd203d511dd437837a34555b276e14e0edf615bcb58bae5d9a1246d9a

Hash scope: pdftotext -layout text layer, parsed by extract/extract_ctdna_jamshidi.py

Inspected artifact

Comparison: dataset version
CCGA substudy 1 training set
Context-only references
Evaluation of cell-free DNA approaches for multi-cancer early detection

Original source ↗

Table 3, row 'WG methylation', training set columns

Version: Cancer Cell 40(12):1537-1549.e12, published 2022-12-12; publisher PDF (1-s2.0-S153561082200513X-main.pdf) as deposited by the Francis Crick Institute on figshare, 10.25418/crick.21731870.v1
Retrieved: 2026-10-10T06:05:17Z

not individually reviewed

No individual claim review recorded

author reported

Audit details

Field: attributes.comparison.dataset_version

Source artifact SHA-256: 5159294dd203d511dd437837a34555b276e14e0edf615bcb58bae5d9a1246d9a

Hash scope: pdftotext -layout text layer, parsed by extract/extract_ctdna_jamshidi.py

Inspected artifact

Comparison: inputs
Whole-genome bisulfite sequencing of cfDNA, about 30x
Context-only references
Evaluation of cell-free DNA approaches for multi-cancer early detection

Original source ↗

Table 3, row 'WG methylation', training set columns

Version: Cancer Cell 40(12):1537-1549.e12, published 2022-12-12; publisher PDF (1-s2.0-S153561082200513X-main.pdf) as deposited by the Francis Crick Institute on figshare, 10.25418/crick.21731870.v1
Retrieved: 2026-10-10T06:05:17Z

not individually reviewed

No individual claim review recorded

author reported

Audit details

Field: attributes.comparison.inputs

Source artifact SHA-256: 5159294dd203d511dd437837a34555b276e14e0edf615bcb58bae5d9a1246d9a

Hash scope: pdftotext -layout text layer, parsed by extract/extract_ctdna_jamshidi.py

Inspected artifact

Comparison: metric implementation
Sensitivity at a post hoc 98% specificity threshold; Clopper-Pearson 95% CI
Context-only references
Evaluation of cell-free DNA approaches for multi-cancer early detection

Original source ↗

Table 3, row 'WG methylation', training set columns

Version: Cancer Cell 40(12):1537-1549.e12, published 2022-12-12; publisher PDF (1-s2.0-S153561082200513X-main.pdf) as deposited by the Francis Crick Institute on figshare, 10.25418/crick.21731870.v1
Retrieved: 2026-10-10T06:05:17Z

not individually reviewed

No individual claim review recorded

author reported

Audit details

Field: attributes.comparison.metric_implementation

Source artifact SHA-256: 5159294dd203d511dd437837a34555b276e14e0edf615bcb58bae5d9a1246d9a

Hash scope: pdftotext -layout text layer, parsed by extract/extract_ctdna_jamshidi.py

Inspected artifact

Comparison: population
833 cancers and 560 non-cancers
Context-only references
Evaluation of cell-free DNA approaches for multi-cancer early detection

Original source ↗

Table 3, row 'WG methylation', training set columns

Version: Cancer Cell 40(12):1537-1549.e12, published 2022-12-12; publisher PDF (1-s2.0-S153561082200513X-main.pdf) as deposited by the Francis Crick Institute on figshare, 10.25418/crick.21731870.v1
Retrieved: 2026-10-10T06:05:17Z

not individually reviewed

No individual claim review recorded

author reported

Audit details

Field: attributes.comparison.population

Source artifact SHA-256: 5159294dd203d511dd437837a34555b276e14e0edf615bcb58bae5d9a1246d9a

Hash scope: pdftotext -layout text layer, parsed by extract/extract_ctdna_jamshidi.py

Inspected artifact

Comparison: protocol id
ctdnajam-20261010-protocol-ccga1-training-cv-sens-98spec
Context-only references
Evaluation of cell-free DNA approaches for multi-cancer early detection

Original source ↗

Table 3, row 'WG methylation', training set columns

Version: Cancer Cell 40(12):1537-1549.e12, published 2022-12-12; publisher PDF (1-s2.0-S153561082200513X-main.pdf) as deposited by the Francis Crick Institute on figshare, 10.25418/crick.21731870.v1
Retrieved: 2026-10-10T06:05:17Z

not individually reviewed

No individual claim review recorded

author reported

Audit details

Field: attributes.comparison.protocol_id

Source artifact SHA-256: 5159294dd203d511dd437837a34555b276e14e0edf615bcb58bae5d9a1246d9a

Hash scope: pdftotext -layout text layer, parsed by extract/extract_ctdna_jamshidi.py

Inspected artifact

Comparison: split
10-fold cross-validation within the training set
Context-only references
Evaluation of cell-free DNA approaches for multi-cancer early detection

Original source ↗

Table 3, row 'WG methylation', training set columns

Version: Cancer Cell 40(12):1537-1549.e12, published 2022-12-12; publisher PDF (1-s2.0-S153561082200513X-main.pdf) as deposited by the Francis Crick Institute on figshare, 10.25418/crick.21731870.v1
Retrieved: 2026-10-10T06:05:17Z

not individually reviewed

No individual claim review recorded

author reported

Audit details

Field: attributes.comparison.split

Source artifact SHA-256: 5159294dd203d511dd437837a34555b276e14e0edf615bcb58bae5d9a1246d9a

Hash scope: pdftotext -layout text layer, parsed by extract/extract_ctdna_jamshidi.py

Inspected artifact

Limitations
1 values
  • Run and reported by the assay developer (GRAIL).
Context-only references
Evaluation of cell-free DNA approaches for multi-cancer early detection

Original source ↗

Table 3, row 'WG methylation', training set columns

Version: Cancer Cell 40(12):1537-1549.e12, published 2022-12-12; publisher PDF (1-s2.0-S153561082200513X-main.pdf) as deposited by the Francis Crick Institute on figshare, 10.25418/crick.21731870.v1
Retrieved: 2026-10-10T06:05:17Z

not individually reviewed

No individual claim review recorded

author reported

Audit details

Field: attributes.limitations

Source artifact SHA-256: 5159294dd203d511dd437837a34555b276e14e0edf615bcb58bae5d9a1246d9a

Hash scope: pdftotext -layout text layer, parsed by extract/extract_ctdna_jamshidi.py

Inspected artifact

Sources and history

Release 2026-10-10-cbb3da59bc08 · Record review: source checked

1 source record and release historyDownload this release (gzip)
Technical metadata and extraction receipts

Stable ID: ctdnajam-20261010-eval-training-wg-methylation

areas
dna-genomes
contexts
clinical_research
origin
author_reported
protocol
ctdnajam-20261010-protocol-ccga1-training-cv-sens-98spec
version
Primary source as retrieved 2026-10-10
comparison
protocol id: ctdnajam-20261010-protocol-ccga1-training-cv-sens-98spec; dataset version: CCGA substudy 1 training set; population: 833 cancers and 560 non-cancers; split: 10-fold cross-validation within the training set; inputs: Whole-genome bisulfite sequencing of cfDNA, about 30x; adaptation: Trained on the CCGA substudy 1 training set; metric implementation: Sensitivity at a post hoc 98% specificity threshold; Clopper-Pearson 95% CI; aggregation: Pooled over participants; budget: Not reported
source locator
Table 3, row 'WG methylation', training set columns
limitations
Run and reported by the assay developer (GRAIL).
missing metadata
comparison.budget: reason: inapplicable
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