idea-020 · human · US

Point-of-Care sFlt-1/PlGF for Preeclampsia

For the quantitative determination of soluble fms-like tyrosine kinase-1; (sFlt-1) and placental growth factor (PlGF) in anticoagulated venous whole blood by trained; healthcare personnel in hospital labor-and-delivery and obstetric units, with the; sFlt-1/PlGF (soluble fms-like tyrosine kinase-1 to placental growth factor ratio) ratio used in conjunction with other clinical and laboratory information as an; aid in the risk assessment of pregnant women with singleton pregnancies between 23 weeks; 0 days and 34 weeks 6 days of gestation who are hospitalized for a hypertensive disorder of; pregnancy, for progression to preeclampsia with severe features within two weeks; not for; screening, not for the diagnosis of preeclampsia, and not for use outside the hospital.

Still being built — 5 of 8 wrap criteria met; nothing for you to decide yet. No department has been asked. 0 of 29 claims verified. Nobody has yet written down what it rests on.

not wrappedunassessed status: active updated 2026-09-28 Ask or request work ↗

The bet

In plain words

A single-use microfluidic cartridge taking anticoagulated venous whole blood, separating plasma on-cartridge, and running two sandwich immunoassays (soluble fms-like tyrosine kinase-1 and placental growth factor) with fluorescent-label detection, read on a small benchtop reader that reports both concentrations and their ratio against the cutoff carried by the cleared predicate's labeling. The analytical design problem is precision at low PlGF concentrations, where the ratio is most sensitive to measurement error (claim 24unverified — reasoning, not a finding). Nothing here is a novel biomarker; the proposition is the same measurand pair, the same indication, run in a different place.

In the mechanism, as the candidate file states it — the plain-language paragraph in ## Wrap has not been written yet. Domain: none linked

Who pays

No business case yet, so nothing here says who writes the cheque. /business-case idea-020 builds one.

What would kill it

What this idea rests on that is not yet known, in the order this idea's own decision queue puts it: worst if false first, cheapest to settle first inside that. The first row is open; open any other for what would settle it.

This idea is unassessed, so nobody has yet named the few things it rests on. Until then, the gaps below are the rubric factors that are unscored or carry an open question. /assess idea-020 replaces this list with the real one.

Regulatory pathway score 3

Why it scored what it did: intended_use: is present and copied from the predicate, so the factor is scoreable against it. Rests on claims 1 (DEN220027 (an FDA De Novo decision number) created 21 CFR (Title 21 of the Code of Federal Regulations) 862.1602 / QWH, Class II (FDA device class II)), 2 (predicate indication), 3 (Roche Elecsys reached the device type by…

the rest of this reasoning 510(k) (premarket notification) in 2025, K-number unknown) and 7 (expected 510(k) evidence: analytical plus method-comparison/cutoff agreement, special controls unread). If 1-3 hold, a Class II 510(k) with two predicates is a good Factor 1 position. Held at 3, not 4: the device changes sample matrix (whole blood with on-cartridge separation) and site/operator (nursing staff on the L&D unit), either of which may pull in clinical-sample data in the hospitalized population beyond a bench comparison; claim 8unverified adds a CLIA (Clinical Laboratory Improvement Amendments) categorization step (moderate complexity at launch, waiver a separate study). The widened-indication route in device_class: is not scored.

What would settle it: FDA (US Food and Drug Administration)'s DEN220027 decision summary and the eCFR text of 21 CFR 862.1602 special controls (free, an hour), plus the Roche 510(k) record found by product-code QWH search in the FDA 510(k) database (free).

Reimbursement pathway score 1

Why it scored what it did: Weak by construction, as the file itself says. Rests on claim 11unverified (inpatient labs paid inside the DRG, not separately, under IPPS and, believed, most state Medicaid methods), claim 9unverified (PLA 0524U exists but is test-specific; whether a new…

the rest of this reasoning manufacturer can report under it is unestablished) and claim 10unverified (0243U is a different test). A code existing does not make a pathway, and in this indication no per-test payment exists even if the code applied. The only revenue logic is claim 26unverified, an unsupported assumption that hospitals buy on their own operating economics. Not 0 because the hospital-economics route is a real (if unproven) purchasing path.

What would settle it: CMS (Centers for Medicare & Medicaid Services) IPPS rules on bundled inpatient lab services (free) and the AMA PLA code list entry for 0524U with its named test and lab (free); the hospital-economics case needs human-commissioned interviews with L&D and lab purchasers (paid).

TAM score 2

Why it scored what it did: Placeholder for "unquantified", not an estimate. Component 1 (claim 12unverified: 3.60M US births 2023, 41.5% Medicaid) and component 2 (claim 13unverified: HDP 8.2%-15.9% of deliveries depending on source) are checkable and bound the HDP pool at very…

the rest of this reasoning roughly 0.3-0.6M pregnancies/year. Component 3 (claim 14unverified: the hospitalized 23+0 to 34+6 singleton subset) and component 4 (claim 15unverified: price per test) carry no figure, and addressable share (claim 16unverified: hospitals without an in-house cleared analyzer) and the obstetric-unit count (claim 17unverified) are assumptions. The in-indication subset is a fraction of the HDP pool and the payer model is a hospital budget line, so a small market is the likelier outcome; scored at the floor because the two components that set the size are unknown.

What would settle it: The CDC NVSR 2023 births report and the PMID (PubMed identifier) 35849460 abstract (free) settle components 1-2; the in-indication hospitalization rate needs a PRAECIS/HCUP-NIS inpatient antepartum-HDP query (free-to-low cost), and price plus hospital count…

the rest of this gap analysis need ARUP/Mayo send-out pricing and AHA survey data attached by a human (paid).

FTO / IP score 2

Why it scored what it did: Rests on claims 21 (US10302657B2, serial/dynamic ratio, assignee believed Roche), 22 (US 10,357,469, nothing known) and 23 (BIDMC/Karumanchi foundational families, believed early-2000s and possibly expired, no US number). Three names are…

the rest of this reasoning better than none, and the core measurand pair may be off-patent, but the claims of none were read and the point-of-care cartridge, on-cartridge plasma separation and ratio-reporting field is explicitly unsearched. Scored as unexamined with named leads, not as clear.

What would settle it: USPTO (United States Patent and Trademark Office) Patent Center status and claims for the two named patents plus a family search for the BIDMC US members (free, a few hours); a CPC sweep of Roche/Thermo Fisher/QuidelOrtho filings on sFlt-1/PlGF and whole-blood cartridges would…

the rest of this gap analysis complete the landscape.

Moat / defensibility score 2

Why it scored what it did: No claim addresses moat directly; inferred from claims 24-25 and 27. The measurand, cutoff and indication are all public and held by the predicate, so the only assets are cartridge engineering (low-end PlGF precision, whole-blood…

the rest of this reasoning separation) and first-mover clearance in a niche. Roche and Thermo Fisher own the calibration lineage and could follow; QuidelOrtho already sells a POC PlGF assay abroad (claim 4unverified). IP (intellectual property) moat is unknowable while FTO (freedom to operate)/IP is unexamined.

What would settle it: Falls out of the FTO/IP patent sweep (free); an FDA 510(k) database check for other QWH filers since 2023 (free) gauges how fast followers arrive.

Mechanism & clinical risk score 3

Why it scored what it did: Clinical risk is low if claims 5-6 hold: PRAECIS (US, 1014 hospitalized women, ratio ≥40 sens/spec 81%/81%, NPV 90%) and PROGNOSIS validate the biomarker, and claims 1-3 say FDA has cleared it twice. The risk is analytical, not biological:…

the rest of this reasoning claim 24unverified (reasoning) names low-PlGF imprecision, hematocrit/hemolysis effects, lot drift and non-commutability with predicate calibration, and claim 25unverified says no prototype or data exist. Held at 3 because matching central-lab precision near the cutoff in a whole-blood cartridge is an unproven engineering bet.

What would settle it: The PRAECIS and PROGNOSIS papers via PubMed/DOI (free) settle the clinical half; the analytical half needs a bench feasibility study on banked samples against a KRYPTOR or Elecsys (paid, months).

Capital intensity & time-to-revenue score 2

Why it scored what it did: Inferred from claims 7-8, 24-25 and 11/26. A new reader plus microfluidic dual-immunoassay cartridge built from zero (claim 25unverified), then analytical validation, method comparison on hospitalized-HDP samples, 510(k) and CLIA categorization, and…

the rest of this reasoning first sales as unreimbursed hospital capital/consumable purchases. That points to a multi-year, multi-million-dollar IVD (in vitro diagnostic) program with a slow first dollar. Not 1 because the regulatory evidence burden, if claim 7unverified holds, stops short of an outcome study.

What would settle it: A human estimate from IVD contract developers for a two-analyte fluorescent cartridge-and-reader program (a few quotes, free to request), with the special-controls read under Regulatory setting the clinical-study size.

Competitive intensity score 3

Why it scored what it did: Rests on claims 3, 4, 18 and 27. Two large incumbents (Thermo Fisher KRYPTOR, Roche Elecsys) own the device type but only on central-lab analyzers; reference labs (ARUP, Mayo) serve the send-out case; no US POC sFlt-1/PlGF test was found,…

the rest of this reasoning though that is a web-search absence. QuidelOrtho's ex-US POC PlGF product is the obvious latent entrant. Moderate: an open format niche beside well-resourced incumbents who could close it.

What would settle it: An FDA 510(k)/De Novo database search on product code QWH plus ClinicalTrials.gov for POC sFlt-1/PlGF studies (free, an hour).

Strategic fit & portfolio balance no score

Why it scored what it did: Left unscored: no claim in this file addresses portfolio fit and no portfolio thesis exists in this repo to score against.

What would settle it: A Tier 3 human portfolio statement at Stage 6; not closable by a Verifier pass.

What the departments said

Seven chairs, each answering from its own field. The verdict, and the first condition it set.

Not convened. No department has stated a position on this idea yet — a normal state, not a defect. /round-table idea-020 asks all seven.

What has been checked

The count

0/29
claims verified
0
refuted
8/9
factors scored
4/4
core factors
verifiedunconfirmedrefutednot yet checked

Only verified counts toward a score. A low count is usually a statement about the tooling — an absent data file, an unset key — rather than about the idea.

The claim ledger → · the nine factors ↓

What was found to be false

No claim on this idea has been refuted.

What to do next

The next move

<one sentence, selected from the Scores table's "What would settle it" column>

Decisions on the table

Nothing is waiting on a decision. The next move above is work, not a choice.

Go deeper

All 29 claimsevery claim with its confidence tag and sourceSearch inside this ideaevery section of every file about it
Where it stands in the machine stage scored · not in the loop · unassessed — every stage this idea has been through, and what each holds
Running alongside every stage

What has been checked against a primary source

8/9
factors scored
4/4
core factors
0/29
claims verified
0
refuted

Only verified counts toward a score. A low count is usually a statement about the tooling (an absent data file, an unset key) rather than about the idea.

Read all 29 claims →

Click any step to see what it holds for this idea. donecurrentloopinghuman only

The full packet the whole ## Wrap section, as written

The packet a human reads. See docs/wrap-spec.md. This section says nothing about whether the idea is good — it says the file is finished enough to be read, and names what to do next. Filling it in advances no candidate and approves nothing.

The one-paragraph version. <not yet written — later-stage artifact>

What would have to be true.

  • Desirability: <quoted from the desirability deck>
  • Viability: <quoted from the viability deck>
  • Feasibility: <quoted from the feasibility deck>

Cheapest next test: <one sentence, selected from the Scores table's "What would settle it" column>

Where the evidence actually stands. <run python3 engine/scripts/wrap_status.py --candidate idea-020>

The nine factors why each scored what it did, and what would settle it
FactorScoreWhyWhat would settle it
Regulatory pathway3intended_use: is present and copied from the predicate, so the factor is scoreable against it. Rests on claims 1 (DEN220027 created 21 CFR 862.1602 / QWH, Class II), 2 (predicate indication), 3 (Roche Elecsys reached the device type by…
the rest of this reasoning 510(k) in 2025, K-number unknown) and 7 (expected 510(k) evidence: analytical plus method-comparison/cutoff agreement, special controls unread). If 1-3 hold, a Class II 510(k) with two predicates is a good Factor 1 position. Held at 3, not 4: the device changes sample matrix (whole blood with on-cartridge separation) and site/operator (nursing staff on the L&D unit), either of which may pull in clinical-sample data in the hospitalized population beyond a bench comparison; claim 8unverified adds a CLIA categorization step (moderate complexity at launch, waiver a separate study). The widened-indication route in device_class: is not scored.
FDA's DEN220027 decision summary and the eCFR text of 21 CFR 862.1602 special controls (free, an hour), plus the Roche 510(k) record found by product-code QWH search in the FDA 510(k) database (free).
Reimbursement pathway1Weak by construction, as the file itself says. Rests on claim 11unverified (inpatient labs paid inside the DRG, not separately, under IPPS and, believed, most state Medicaid methods), claim 9unverified (PLA 0524U exists but is test-specific; whether a new…
the rest of this reasoning manufacturer can report under it is unestablished) and claim 10unverified (0243U is a different test). A code existing does not make a pathway, and in this indication no per-test payment exists even if the code applied. The only revenue logic is claim 26unverified, an unsupported assumption that hospitals buy on their own operating economics. Not 0 because the hospital-economics route is a real (if unproven) purchasing path.
CMS IPPS rules on bundled inpatient lab services (free) and the AMA PLA code list entry for 0524U with its named test and lab (free); the hospital-economics case needs human-commissioned interviews with L&D and lab purchasers (paid).
TAM2Placeholder for "unquantified", not an estimate. Component 1 (claim 12unverified: 3.60M US births 2023, 41.5% Medicaid) and component 2 (claim 13unverified: HDP 8.2%-15.9% of deliveries depending on source) are checkable and bound the HDP pool at very…
the rest of this reasoning roughly 0.3-0.6M pregnancies/year. Component 3 (claim 14unverified: the hospitalized 23+0 to 34+6 singleton subset) and component 4 (claim 15unverified: price per test) carry no figure, and addressable share (claim 16unverified: hospitals without an in-house cleared analyzer) and the obstetric-unit count (claim 17unverified) are assumptions. The in-indication subset is a fraction of the HDP pool and the payer model is a hospital budget line, so a small market is the likelier outcome; scored at the floor because the two components that set the size are unknown.
The CDC NVSR 2023 births report and the PMID 35849460 abstract (free) settle components 1-2; the in-indication hospitalization rate needs a PRAECIS/HCUP-NIS inpatient antepartum-HDP query (free-to-low cost), and price plus hospital count…
the rest of this gap analysis need ARUP/Mayo send-out pricing and AHA survey data attached by a human (paid).
FTO / IP2Rests on claims 21 (US10302657B2, serial/dynamic ratio, assignee believed Roche), 22 (US 10,357,469, nothing known) and 23 (BIDMC/Karumanchi foundational families, believed early-2000s and possibly expired, no US number). Three names are…
the rest of this reasoning better than none, and the core measurand pair may be off-patent, but the claims of none were read and the point-of-care cartridge, on-cartridge plasma separation and ratio-reporting field is explicitly unsearched. Scored as unexamined with named leads, not as clear.
USPTO Patent Center status and claims for the two named patents plus a family search for the BIDMC US members (free, a few hours); a CPC sweep of Roche/Thermo Fisher/QuidelOrtho filings on sFlt-1/PlGF and whole-blood cartridges would…
the rest of this gap analysis complete the landscape.
Moat / defensibility2No claim addresses moat directly; inferred from claims 24-25 and 27. The measurand, cutoff and indication are all public and held by the predicate, so the only assets are cartridge engineering (low-end PlGF precision, whole-blood…
the rest of this reasoning separation) and first-mover clearance in a niche. Roche and Thermo Fisher own the calibration lineage and could follow; QuidelOrtho already sells a POC PlGF assay abroad (claim 4unverified). IP moat is unknowable while FTO/IP is unexamined.
Falls out of the FTO/IP patent sweep (free); an FDA 510(k) database check for other QWH filers since 2023 (free) gauges how fast followers arrive.
Mechanism & clinical risk3Clinical risk is low if claims 5-6 hold: PRAECIS (US, 1014 hospitalized women, ratio ≥40 sens/spec 81%/81%, NPV 90%) and PROGNOSIS validate the biomarker, and claims 1-3 say FDA has cleared it twice. The risk is analytical, not biological:…
the rest of this reasoning claim 24unverified (reasoning) names low-PlGF imprecision, hematocrit/hemolysis effects, lot drift and non-commutability with predicate calibration, and claim 25unverified says no prototype or data exist. Held at 3 because matching central-lab precision near the cutoff in a whole-blood cartridge is an unproven engineering bet.
The PRAECIS and PROGNOSIS papers via PubMed/DOI (free) settle the clinical half; the analytical half needs a bench feasibility study on banked samples against a KRYPTOR or Elecsys (paid, months).
Capital intensity & time-to-revenue2Inferred from claims 7-8, 24-25 and 11/26. A new reader plus microfluidic dual-immunoassay cartridge built from zero (claim 25unverified), then analytical validation, method comparison on hospitalized-HDP samples, 510(k) and CLIA categorization, and…
the rest of this reasoning first sales as unreimbursed hospital capital/consumable purchases. That points to a multi-year, multi-million-dollar IVD program with a slow first dollar. Not 1 because the regulatory evidence burden, if claim 7unverified holds, stops short of an outcome study.
A human estimate from IVD contract developers for a two-analyte fluorescent cartridge-and-reader program (a few quotes, free to request), with the special-controls read under Regulatory setting the clinical-study size.
Competitive intensity3Rests on claims 3, 4, 18 and 27. Two large incumbents (Thermo Fisher KRYPTOR, Roche Elecsys) own the device type but only on central-lab analyzers; reference labs (ARUP, Mayo) serve the send-out case; no US POC sFlt-1/PlGF test was found,…
the rest of this reasoning though that is a web-search absence. QuidelOrtho's ex-US POC PlGF product is the obvious latent entrant. Moderate: an open format niche beside well-resourced incumbents who could close it.
An FDA 510(k)/De Novo database search on product code QWH plus ClinicalTrials.gov for POC sFlt-1/PlGF studies (free, an hour).
Strategic fit & portfolio balance—Left unscored: no claim in this file addresses portfolio fit and no portfolio thesis exists in this repo to score against.A Tier 3 human portfolio statement at Stage 6; not closable by a Verifier pass.
Packet status 3 thing(s) missing

To finish this packet:

  • no domain linked in domains: — run /research
  • desirability deck missing; viability deck missing; feasibility deck missing — run /pitch-decks idea-020
  • **Cheapest next test:** is still the unfilled _template.md placeholder — name the test, or the criterion checks nothing

Source file: knowledge-base/candidates/idea-020.md

Nothing on this page is a recommendation. Shortlist review, legal and clinical sign-off and capital allocation are human-only decisions, and no agent in this repo may make or simulate one. This is a compilation of what the candidate file says.

Words on this page15 abbreviation(s) and code(s), with what each stands for — copied from _shared/plain-language.md
21 CFR
Title 21 of the Code of Federal Regulations — the US food-and-drug rulebook; a number after it is one regulation, often the one that classifies a device type
510(k)
premarket notification — the FDA route for a device shown to be as safe and effective as one already on the market; months, no clinical trial as a rule
Class II
FDA device class II — moderate-risk devices, usually cleared by 510(k)
CLIA
Clinical Laboratory Improvement Amendments — the US rules a clinical laboratory must meet to report test results on patients
CMS
Centers for Medicare & Medicaid Services — the US agency that runs Medicare, and so decides what Medicare pays for
De Novo
De Novo classification request — the FDA route for a new, lower-risk device with no comparable product to point at; longer than a 510(k), usually needs clinical data
DEN######
an FDA De Novo decision number — the public record of one device granted a De Novo
FDA
US Food and Drug Administration — the US regulator that clears or approves a device before it can be sold
FTO
freedom to operate — whether a product can be sold without infringing someone else's live patent
IP
intellectual property — patents and the other rights that let a company stop others copying it
IVD
in vitro diagnostic — a test run on a sample taken from the body rather than on the body
PMID
PubMed identifier — the public id of one published medical paper
sFlt-1/PlGF
soluble fms-like tyrosine kinase-1 to placental growth factor ratio — a blood-test ratio used to assess the risk of pre-eclampsia in pregnancy
TAM
total addressable market — how much money the whole market would be worth if every possible buyer bought
USPTO
United States Patent and Trademark Office — the US patent office