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Florquinitau (18f)

  • Prescription medicine
  • Prescription only
  • Identity checked
  • Sources last checked 2026-09-04

This page shows what was measured, who it was measured in, and what that does not settle.

What Florquinitau (18f) does in the body

RNAWiki has not recorded what this substance changes in the body.

What happened in people

RNAWiki has not yet published a reviewed conclusion for this use.

A fixed RNAWiki sentence

Where this came from

Wording RNAWiki always uses, not a finding about this substance.

No reviewed claim names a result for any goal on this record.

No source is stored against this line.

The limit that matters most

Not recorded.

Where it acts
Not recorded.
Kind of result
No result is published, so no kind of result applies yet
Supervision
RNAWiki has not recorded a supervision or regulatory status for this substance.

What the registries record it as

  • The substance registry classes this as chemical.

    FDA substance registry · E8VRR6FE0Y · read 2026-08-29

  • Its recorded molecular formula is C16H11FN4, weighing 277.29.

    PubChem record · 121488182 · read 2026-08-29

Where each sentence above came from

No plain explanation of what this changes is stored.

No recorded use is stored in reader language.

No statement of the main limit is recorded.

The four opening statements run to 26 words.

Words this page uses

Four words worth knowing first

Chosen from what this page shows, with each one explained before the word it depends on.

Biomarker

A biomarker is a number from a test that stands in for something about health.

A picture of it, and where the picture fails

A biomarker is like a fuel gauge.

Where that stops being true. A gauge is wired to the tank. Many biomarkers are only loosely tied to health.

What people get wrong. A better number is read as a better life. Several medicines improved a number and helped nobody.

A measurable indicator used as a substitute for a clinical outcome of interest.

Placebo

A placebo is a dummy treatment given so the real one can be compared with it.

A picture of it, and where the picture fails

A placebo is like a blank control in an experiment.

Where that stops being true. A blank does nothing. People given a placebo often do get better.

What people get wrong. A placebo effect is read as imaginary. The improvement is measured and real.

An inactive intervention matched in appearance to the test intervention, used to control for non-specific effects.

Comparator

A comparator is whatever the treatment was measured against.

A picture of it, and where the picture fails

It is like the other runner in a race.

Where that stops being true. A race has one winner. A study can show both arms improved.

What people get wrong. Results are read without asking what the other group got. Beating nothing is not beating a treatment.

The control condition against which the experimental intervention is assessed.

What happened in peopleRead from sources, not yet reviewed

What happened in people

Each card is one study: the exact question it asked, who was in it, and whether it showed what it set out to show.

Total Number of Individuals With Successful Opening of the BBB

The study did not show it

Who was studied
NCT06600880
How many people
6
Study design
Phase 1
Compared against
Not recorded for this study
Kind of result
A number that stands in for health
What was found
Result not recorded on this page
Repeated elsewhere
Unreplicated

What this does not prove. A study that did not show an effect does not show that no effect exists anywhere.

The limits of this study, and where it came from

Main limit. No limitation is recorded for this study.

How far it carries. This study is recorded from the curated record, not from the registry match.

Form and route.

Interval reported. Not recorded in this summary

Written into the record, not signed off as a reviewed claim.

  • openFDA Drugs@FDA · a recorded source, not a stored snapshot
  • PubChem PUG-REST · a recorded source, not a stored snapshot
  • openFDA NDC Directory · a recorded source, not a stored snapshot
  • Europe PMC · a recorded source, not a stored snapshot
What we know
RNAWiki holds 1 written-up human studies for this substance, each with the question it asked.
How we know it
Each card names the study, the number of people and what the study set out to measure.
What this does not prove
These summaries were written by a person and have not been signed off as reviewed claims.
Why it matters
A study that failed is as informative as one that worked, and both are here.
What we still do not know
No reviewed claim exists, so no exact population, effect size or interval is published yet.

What happened in peopleRead from sources, not yet reviewed

How close this is to real life

The top step is something a person would feel or care about. The bottom is a guess from software. Filled steps are where evidence exists for this substance.

  1. Living longer, or avoiding a major event No evidence recorded. Death, a heart attack, a stroke, a hospital stay.No registered study measures this.
  2. What a body can do day to day No evidence recorded. Walking, dressing, breathing, recovering.No registered study measures this.
  3. Measured performance No evidence recorded. How much was lifted, how far was run, how fast.No registered study measures this.
  4. Symptoms and quality of life No evidence recorded. Pain, tiredness, mood, sleep, as the person rated it.No registered study measures this.
  5. A number that stands in for health No evidence recorded. Cholesterol, blood sugar, bone density. A stand-in, not the thing itself.No registered study measures this.
  6. A step measured inside a person Evidence recorded. Something measured in human tissue or human cells.A human record sits on the stored organism ladder.
  7. Animals No evidence recorded. Mice, rats, dogs. Useful for ideas, not proof about people.No animal record is stored.
  8. Cells in a dish No evidence recorded. Cells or chemistry on a bench, far from a whole body.No cell or bench record is stored.
  9. A guess from software No evidence recorded. Nobody measured it. RNAWiki never publishes one as a finding.RNAWiki stores no prediction for this record. Software can suggest a link. RNAWiki does not publish one as a finding.

Higher on these steps means closer to something a person would feel. It does not mean better done.

What is missing or unclearRead from sources, not yet reviewed

Were people like you studied?

RNAWiki cannot tell whether a study fits you. It can show who was in it, and where the result stops carrying.

Who was studied

No description of who was studied is recorded.

Who is missing from the studies

  • Which groups were under-represented in the studies has not been recorded for this substance. Pregnancy, breastfeeding, children, older adults, and people with liver or kidney conditions are commonly excluded from trials; nothing here says whether they were.

Where the result stopped carrying

  • This is a scope explorer, not a diagnosis engine.
  • It shows who was studied so you can see whether people similar to you were included.

RNAWiki cannot tell whether a study fits you. It can show who was in it.

What it would be like to takeRead from sources, not yet reviewed

Why it might seem to do nothing

A real effect and a noticed effect are different things. These are the recorded reasons the two come apart.

It was studied for a different goal

The studies measured something else entirely.

On this record: Some registered studies measured things that match no goal on this page.

It was studied in different people

The people in the studies were not much like the reader.

On this record: Which groups were under-represented in the studies has not been recorded for this substance. Pregnancy, breastfeeding, children, older adults, and people with liver or kidney conditions are commonly excluded from trials; nothing here says whether they were.

The evidence may simply be wrong

Small early studies often do not hold up.

On this record: RNAWiki has not yet published a reviewed conclusion for this use.

Other reasons RNAWiki checked and found nothing for (10)
A different form was studied
The studied form is not the form on the shelf. Nothing in this record points to this reason.
There was nothing to correct
Where a level is already normal, topping it up may change nothing. Nothing in this record points to this reason.
Something else had to happen too
In the studies it was paired with training, a diet or another treatment. Nothing in this record points to this reason.
The change is too small to feel
A real change can still sit below what a person notices. Nothing in this record points to this reason.
Day-to-day swing hides it
Sleep, food, stress and time of day move most numbers more than this would. Nothing in this record points to this reason.
Not enough time yet
The studies ran longer than the person has waited. Nothing in this record points to this reason.
It was not taken as studied
Missed days change the result, and studies count them. Nothing in this record points to this reason.
Something else changed at the same time
Two changes at once cannot be told apart afterwards. Nothing in this record points to this reason.
The product may not be what it says
Contents of a sold product are not always what the label states. Nothing in this record points to this reason.
No recorded reason
RNAWiki has nothing stored that would explain it. Nothing in this record points to this reason.

None of these is a reason to take more. Taking more is not a step this page ever suggests.

What it would be like to takeRead from sources, not yet reviewed

What taking it involves

The recorded facts about getting hold of it and using it. Nothing here is a suggestion about what you should do.

How it is supplied

Prescription only

Quoted from a source

Where this came from

Copied from a source RNAWiki stored, with the source named.

Read from the recorded approval status.

No source is stored against this line.

Form and route

Not recorded.

Nothing recorded

Where this came from

RNAWiki holds nothing here and says so rather than guessing.

No form or route is recorded.

No source is stored against this line.

Who oversees it

RNAWiki has not recorded a supervision or regulatory status for this substance.

Quoted from a source

Where this came from

Copied from a source RNAWiki stored, with the source named.

No register row and no identity class settled the question.

No source is stored against this line.

What is in the pack

Not recorded.

Nothing recorded

Where this came from

RNAWiki holds nothing here and says so rather than guessing.

Nothing is recorded about product quality.

No source is stored against this line.

Where it is registered

Regulatory records are listed in the technical disclosure at the foot of this page.

Counted from records

Where this came from

A count of rows RNAWiki holds. It describes our records, not your body.

Register entries are stored per jurisdiction and shown with their dates.

No source is stored against this line.

Why people stop

Not recorded.

Nothing recorded

Where this came from

RNAWiki holds nothing here and says so rather than guessing.

No record of why people stopped taking it is stored for this substance.

No source is stored against this line.

What it would be like to takeNothing found in the sources checked

What can go wrong

Sorted by where each line came from. A regulator's label and a report somebody sent in are not the same kind of fact.

Nothing found in the sources checked

No harm is recorded against this substance in the sources RNAWiki checked. Finding nothing is not the same as showing there is nothing.

The sources listed were searched and held nothing. That is not the same as nothing existing.

Over a long time. No completed tested study window is recorded, so long-term effects are not established by the registry record.

Groups the studies covered thinly. Which groups were under-represented in the studies has not been recorded for this substance. Pregnancy, breastfeeding, children, older adults, and people with liver or kidney conditions are commonly excluded from trials; nothing here says whether they were.

What is missing or unclearRead from sources, not yet reviewed

Does the exact form matter?

Evidence belongs to the exact thing that was tested. A different salt, a different mixture or a different preparation is a different question.

The form that was studied

Not recorded.

Nothing recorded

Where this came from

RNAWiki holds nothing here and says so rather than guessing.

The exact form studied is not recorded.

No source is stored against this line.

What is sold

Not recorded.

Nothing recorded

Where this came from

RNAWiki holds nothing here and says so rather than guessing.

Nothing further is recorded about which forms are sold.

No source is stored against this line.

What is recorded as being sold

  • 2 marketed supplement labels list this ingredient, classed as fat/fatty acid and other combinations.

    NIH Dietary Supplement Label Database · 209317 · read 2026-08-29

  • Those labels carry all other, nutrient and structure/function claims. A claim of that kind is written by the manufacturer and is not assessed by any regulator, so its presence says nothing about whether it is true.

    NIH Dietary Supplement Label Database · 209317 · read 2026-08-29

Evidence carries across two names for one substance. It does not carry across a salt, a mirror form or a mixture.

What it would be like to takeRead from sources, not yet reviewed

What you could measure

This one is decided with a clinician, so this section holds questions to ask rather than a plan to run.

RNAWiki could not confidently classify this substance, so no self-experiment plan is offered.

Questions worth asking

  • Which of the trials of Florquinitau (18f) studied people like me?
  • What was measured, and for how long?
  • Was the result a laboratory value or a health outcome?
  • What would we watch for, and when would we stop?

Tracking can show whether something changed for you. It cannot show what caused it.

RNAWiki records evidence. It does not say whether this substance is right for you.

What is missing or unclearRead from sources, not yet reviewed

What nobody knows yet

Open questions, each with why it is open and what would close it.

How much did people take in the studies?

The sources RNAWiki checked hold nothing for this field.

Why it matters. A result belongs to an amount. Without the amount the result floats free.

What would answer it

A stored source that records it, and a reviewer to sign it off.

Last checked 2026-09-04. Searched: The sources listed in the receipts at the foot of this page.

How fast does the body clear it?

The sources RNAWiki checked hold nothing for this field.

Why it matters. Without this, nothing on this page can say how long anything lasts.

What would answer it

A stored source that records it, and a reviewer to sign it off.

Last checked 2026-09-04. Searched: The sources listed in the receipts at the foot of this page.

Missing populations

Which groups were under-represented in the studies has not been recorded.

Why it matters. Recorded by the evidence model as a gap on this record.

What would answer it

A study that measures it, and a reviewer to sign it off.

Last checked 2026-09-04. Searched: The sources listed in the receipts at the foot of this page.

Missing long-term data

No completed tested study window is recorded.

Why it matters. Recorded by the evidence model as a gap on this record.

What would answer it

A study that measures it, and a reviewer to sign it off.

Last checked 2026-09-04. Searched: The sources listed in the receipts at the foot of this page.

No reviewed conclusion

RNAWiki has not yet published a reviewed conclusion for this use.

Why it matters. Recorded by the evidence model as a gap on this record.

What would answer it

A study that measures it, and a reviewer to sign it off.

Last checked 2026-09-04. Searched: The sources listed in the receipts at the foot of this page.

Missing interaction studies

No interaction was found in the registers checked. Not finding one is not the same as showing there is none.

Why it matters. Recorded by the evidence model as a gap on this record.

What would answer it

A study that measures it, and a reviewer to sign it off.

Last checked 2026-09-04. Searched: The sources listed in the receipts at the foot of this page.

Formulation uncertainty

Several salts, forms or products of Florquinitau (18f) are recorded. Results from one form may not transfer to another.

Why it matters. Recorded by the evidence model as a gap on this record.

What would answer it

A study that measures it, and a reviewer to sign it off.

Last checked 2026-09-04. Searched: The sources listed in the receipts at the foot of this page.

Mechanism not reviewed

No reviewed mechanism story exists for this substance.

Why it matters. Recorded by the evidence model as a gap on this record.

What would answer it

A study that measures it, and a reviewer to sign it off.

Last checked 2026-09-04. Searched: The sources listed in the receipts at the foot of this page.

What happened in peopleRead from sources, not yet reviewed

Check any of this yourself

Every line above traced back to the study it came from. This is the technical layer, and the vocabulary changes here.

Where else this substance is registered

FDA substance identifier (UNII)
E8VRR6FE0Y
CAS registry number
1841444-25-4
PubChem compound
121488182
WHO international nonproprietary name list entry
12061
EMA substance identifier
300000039914

Checks this page had to pass

  • Passed

    Identity resolved

    no open identity hold

  • Passed

    No unresolved merge across substance families

    no quarantine open

  • Not passed

    Every public sentence names a source

    The opening statement carries no source: the record holds neither an explanation nor a recorded use.

  • Not passed

    Trial roles classified for highlighted evidence

    No registered study is classified as testing this substance.

  • Passed

    No internal keys in reader text

    enforced by the copy-contract test over the rendered page

  • Not passed

    Safety mode resolved

    No register row and no identity class settled the question.

  • Passed

    Canonical metadata present

    slug and display name present

What is missing or unclearRead from sources, not yet reviewed

How this medicine reached us

Kept near the foot of the page. A historical event moves up only when it changes something about this substance today.

What the approval register records

  • 1 approved application covers products containing this substance. The earliest was NDA220496, approved 20260813 to CERVEAU TECHNOLOGIES INC A LANTHEUS CO.

    Drugs@FDA application register · NDA220496 · read 2026-08-29

  • Marketing status on the register: prescription.

    Drugs@FDA application register · NDA220496 · read 2026-08-29

What is missing or unclearRead from sources, not yet reviewed

What to learn next

Ordered by what would most change how you read this page, starting with what is easiest to misunderstand.

This order is fixed in code and does not count clicks or time on the page.

What is not here

8 questions this page could not answer

These sections were prepared and left out because there was nothing to put in them. They are listed rather than hidden, so the gaps in this record are visible.

  • What was measured, goal by goal — found nothing in the sources checked.
  • The path through the body — found nothing in the sources checked.
  • Felt, measured, or meaningful — found nothing in the sources checked.
  • How long anything takes — found nothing in the sources checked.
  • What it may clash with — found nothing in the sources checked.
  • Other ways to the same goal — found nothing in the sources checked.
  • Claims that go past the evidence — found nothing in the sources checked.
  • What changed on this page — found nothing in the sources checked.

The record as stored

The full record, for auditing

Everything above is built from what is below. This layer keeps the technical vocabulary, record identifiers and every stored row, so a reader who wants to check the page can.

Recorded evidence blocks (8)

What did Florquinitau (18f)'s largest trial (1500 people) and its longest (9.5 years) measure?


1500 people in Florquinitau (18f)'s largest registered study, 9.5 years in its longest registered window, measuring Rate of change in plasma biomarkers. ClinicalTrials.gov · 2026-09-01

4 na or unstated, 3 phase1, 2 phase2, 2 phase3, 1 early phase1; NCT03372317; 2027-12. Last human test completed 2023, NCT03706261.

These counts include studies where Florquinitau (18f) was a comparison treatment, a background treatment or an exposure in an observational study, and the longest window may be a planned end date. Trial roles have not yet been classified for this record.

Show the evidence
  • na or unstated
    4
  • phase1
    3
  • phase2
    2
  • phase3
    2
  • early phase1
    1
  • Last recorded human test NCT03706261
    2023-07-14

recorded 2026-09-01 · last checked 2026-09-04

Florquinitau (18f) was tested only in human — what did it show?


human: biomarker (12): the rungs where Florquinitau (18f) has a recorded finding. Europe PMC and ClinicalTrials.gov · organism ladder · 2026-09-01

Interpretation Rate of change in plasma biomarkers — the recorded outcome words.

Yeast C. elegans Drosophila Mouse Rat Dog Non-human primate Human biomarker
Show the evidence
  • human NCT05457998
    biomarker; Rate of change in plasma biomarkers; 12

recorded 2026-09-01 · last checked 2026-09-04

2 of Florquinitau (18f)'s trials stopped: accrual/recruitment?


accrual/recruitment (2): Florquinitau (18f)'s stop wording, clustered. ClinicalTrials.gov · 2026-09-01

"Difficulty recruiting due to the COVID-19 pandemic and end of funding"; 2 of 12 registered studies

Show the evidence

Trial

  • NCT03757910
    terminated; "Difficulty recruiting due to the COVID-19 pandemic and end of funding"
  • NCT06860373
    terminated; "Unable to recruit"

recorded 2026-09-01 · last checked 2026-09-04

Could one person measure Florquinitau (18f)'s effect on cognition?


Cognition: measured in Florquinitau (18f)'s trials.

Interpretation cognition is the recorded endpoint.

Show the evidence

biomarkers

  • cognition; 2026-09-01
  • adverse events; 2026-09-01
  • rate of enrollment of underrepresented populations; 2026-09-01
  • human trials at or under30
    3
  • Not recorded for this substance
    a recorded half-life
  • smallest human trial
    5; NCT03757910; EARLY_PHASE1; the smallest recorded human enrolment at or below 30; the registry states no direction of its result; TERMINATED

Which of adverse events, cognition and rate of enrollment of underrepresented populations did Florquinitau (18f)'s trials measure?


adverse events, cognition and rate of enrollment of underrepresented populations lead 3 outcome terms across Florquinitau (18f)'s trials. ClinicalTrials.gov · 2026-09-01

3 terms in all.

Show the evidence
  • cognition
    1
  • adverse events
    1
  • rate of enrollment of underrepresented populations
    1

recorded 2026-09-01 · last checked 2026-09-04

Which of Florquinitau (18f)'s 7 ongoing trials reports first?


7 registered trials of Florquinitau (18f) are open; earliest completion 2026-01-31. ClinicalTrials.gov · 2026-09-01

Total number of individuals with tau present; Study the temporal dynamics of tau deposition (using [18F]MK-6240).; latest 2028-12

Show the evidence

Trial

  • NCT03372317
    "Tau PET in Imaging and Cognition: Healthy Adults From 55-90"; n 105; "Total number of individuals with tau present"; 2027-12
  • NCT04104659
    "Study of Tau Imaging With the Use of [18F]MK-6240 Tracer"; n 200; "Study the temporal dynamics of tau deposition (using [18F]MK-6240)."; 2027-06-01
  • NCT04784416
    "Transcranial Photobiomodulation for Alzheimer's Disease (TRAP-AD)"; n 196; "Change in Repeatable Battery for the Assessment of Neuropsychological Status Update (RBANS) Total Scale Index Score."; 2026-01-31
  • NCT05457998
    "BioFINDER-Brown: Examination of Alzheimer's Disease Biomarkers"; n 200; "Rate of change in plasma biomarkers"; 2028-06
  • NCT05617014
    "Alzheimer's Disease Neuroimaging Initiative 4"; n 1500; "Rate of enrollment of Underrepresented Populations (URPs)"; 2027-07-31
  • NCT06600880
    "Neuronavigation-guided FUS-induced BBB Opening in Alzheimer's Disease Patients and Its Effects on Brain Amyloid and Tau"; n 6; "Total Number of Individuals With Successful Opening of the BBB"; 2028-12
  • 1 further recorded trial NCT07115238
    "Analysis of 18F-XTR006 PET Imaging in Cognitively Normal Subjects, and Patients With MCI and AD"; n 354; "Evaluate the effectiveness of visual reading of XTR006 PET imaging in detecting tau NFTs (neurofibrillary tangles)"; 2026-06-30

recorded 2026-09-01 · last checked 2026-09-04

Which one trial of Florquinitau (18f) posted no result?


Posted no result
1 of 1 completed trials
Registrations
NCT04566003
Completion dates
oldest 2023-06-27
Show the evidence
  • Trial NCT04566003
    2023-06-27

At the median, Florquinitau (18f)'s trials enrolled 125 people — anything larger?


Median enrolment
125
Largest enrolment
1500
Registered trials counted
12
Where it is registered
Identifiers, relations and other names

The exact record

ChEMBL id
CHEMBL4802252
PubChem CID
121488182
CAS number
1841444-25-4
InChIKey
KAXAUWZJVWGFDO-SJPDSGJFSA-N
Also called
FLORQUINITAU F18, Florquinitau f-18, FLORQUINITAU F18 [USAN], Florquinitau (18F) [WHO-DD], florquinitau (¹⁸F) [INN]
Development code
(18F) MK-6240, [18F] MK-6240, MK-6240 F-18
Trade name
Tauklarify
Sources (4)

Sources

ClinicalTrials.gov — US Government work · Europe PMC — metadata only, under the recorded legal gate · derived from this page's own recorded fields; no external licence · mixed register set; per-register licences in docs/specs/corpus-20k-sources.md

How these records are assembled · Which registers were checked

Index-quality checks
  • identity passed: no open identity hold
  • required summary fields resolved: 3 required field(s) not terminal: Best-supported result, Biggest unanswered question, Human evidence
  • public claims reviewed: 0 reviewed claim(s); drafts are never rendered
  • source coverage passed: 4 source rows
  • no critical contamination: no quarantine open
  • canonical metadata passed: slug and display name present
  • no raw internal fields: enforced by the copy-contract test over the rendered page

This is a record of evidence. It is not medical advice, and it does not say this substance suits you. Nothing here says any substance on RNAWiki is appropriate for a child.