Its recorded molecular formula is C17H19N3O4S, weighing 361.4.
PubChem record · 6713928 · 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.
Stand-in result
A stand-in result is a number measured because the real result takes too long.
A picture of it, and where the picture fails
It is like judging a journey by the speedometer rather than by arriving.
Where that stops being true. Speed does predict arrival. Many stand-in results do not predict the real one.
What people get wrong. A stand-in result is often reported as the result itself.
A surrogate endpoint substituted for a clinical endpoint, valid only where the substitution has been shown to hold.
What happened in people◇Read from sources, not yet reviewed
What was measured, goal by goal
One row for each goal a registered study measured something for. One column for each kind of thing that could be measured.
Registered studies list 40 outcome measures that RNAWiki could read. A registered study says what someone planned to measure. It does not say what they found. 0 of the matched studies tested this substance, and 0 posted a result.
There is no single score. A strong test result and a weak life result are different facts.
Goals down the side, kinds of measurement across the top. Each cell says what kind of thing was registered, not what was found.
Goal
Life outcome
What a body can do
How a person feels
A test result
A step in the body
Harms
How long
Who was studied
Pain
∅Nothing in the sources checkedNo registered study lists a life outcome for this goal.
∅Nothing in the sources checkedNo registered study lists a performance measure for this goal.
…Waiting for a reviewer3 registered symptom measure.
∅Nothing in the sources checkedNo registered study lists a test result for this goal.
∅Nothing in the sources checkedNo registered study lists a body-step measure for this goal.
—Not recordedHarms were not a registered measure for this goal.
—Not recordedNo finished study window is recorded.
…Waiting for a reviewerWho was studied is listed further down the page.
Body weight
∅Nothing in the sources checkedNo registered study lists a life outcome for this goal.
∅Nothing in the sources checkedNo registered study lists a performance measure for this goal.
∅Nothing in the sources checkedNo registered study lists a symptom measure for this goal.
△Only a number moved3 registered test measure.
∅Nothing in the sources checkedNo registered study lists a body-step measure for this goal.
—Not recordedHarms were not a registered measure for this goal.
—Not recordedNo finished study window is recorded.
…Waiting for a reviewerWho was studied is listed further down the page.
Which registered measures put each goal on this table
Pain
abdominal pain severity; abdominal pain; pain after treatment
Body weight
weight gain; body fat; weight loss
Sorted by fixed word lists, version v1. A name the rules do not recognise stays unsorted rather than moving to the nearest column.
What each mark on this table means
∅ Nothing in the sources checked
No registered study lists a life outcome for this goal.
… Waiting for a reviewer
3 registered symptom measure.
— Not recorded
Harms were not a registered measure for this goal.
△ Only a number moved
3 registered test measure.
What happened in people◇Read 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.
Number of Participants who transformed to negative status of bacterial vaginosis
✗ The study did not show it
Who was studied
NCT01421615
How many people
5000
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.
NIH Dietary Supplement Label Database · a recorded source, not a stored snapshot
Europe PMC · a recorded source, not a stored snapshot
Clinical sepsis and/or death
✗ The study did not show it
Who was studied
NCT01214473
How many people
4556
Study design
Not applicable
Compared against
Not recorded for this study
Kind of result
Living longer, or avoiding a major event
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.
NIH Dietary Supplement Label Database · a recorded source, not a stored snapshot
Europe PMC · a recorded source, not a stored snapshot
Diarrhoeal episodes in children
✗ The study did not show it
Who was studied
NCT00534170
How many people
4000
Study design
Phase 3
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.
NIH Dietary Supplement Label Database · a recorded source, not a stored snapshot
Europe PMC · a recorded source, not a stored snapshot
Eradication rates
✗ The study did not show it
Who was studied
NCT02689583
How many people
3000
Study design
Not applicable
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.
NIH Dietary Supplement Label Database · a recorded source, not a stored snapshot
Europe PMC · a recorded source, not a stored snapshot
Number of patients with Ventilator Associated Pneumonia (VAP)
✗ The study did not show it
Who was studied
NCT02462590
How many people
2650
Study design
Phase 4
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.
NIH Dietary Supplement Label Database · a recorded source, not a stored snapshot
Europe PMC · a recorded source, not a stored snapshot
Incidence of necrotizing enterocolitis (NEC
✗ The study did not show it
Who was studied
NCT06810154
How many people
2170
Study design
Phase 3
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.
NIH Dietary Supplement Label Database · a recorded source, not a stored snapshot
Europe PMC · a recorded source, not a stored snapshot
What we know
RNAWiki holds 6 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 people◇Read 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.
□Living longer, or avoiding a major eventNo evidence recorded. Death, a heart attack, a stroke, a hospital stay.0 registered measures of this kind. 1 written-up study measured this and did not show a benefit.
□What a body can do day to dayNo evidence recorded. Walking, dressing, breathing, recovering.No registered study measures this.
□Measured performanceNo evidence recorded. How much was lifted, how far was run, how fast.No registered study measures this.
■Symptoms and quality of lifeEvidence recorded. Pain, tiredness, mood, sleep, as the person rated it.6 registered measures of this kind.
■A number that stands in for healthEvidence recorded. Cholesterol, blood sugar, bone density. A stand-in, not the thing itself.5 registered measures of this kind.
■A step measured inside a personEvidence recorded. Something measured in human tissue or human cells.A human record sits on the stored organism ladder.
□AnimalsNo evidence recorded. Mice, rats, dogs. Useful for ideas, not proof about people.No animal record is stored.
□Cells in a dishNo evidence recorded. Cells or chemistry on a bench, far from a whole body.No cell or bench record is stored.
□A guess from softwareNo 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 it would be like to take◇Read from sources, not yet reviewed
Felt, measured, or meaningful
Three different things that get called the same word. Registered studies measured all three, and mixing them is how a blood test becomes a health claim.
Felt
Things a person could notice without a test.
global symptom at week 12 primary efficacy population
abdominal pain severity
total nasal symptom
symptom relief
abdominal pain
pain after treatment
Measured
Things only a test, a scale or a device shows.
geometric mean concentration of rotavirus specific iga
weight gain
decrease in serum creatinine level
body fat
weight loss
Meaningful
Things that change how a life goes, not only a number.
No registered study measured anything of this kind.
A registered study says what someone planned to measure. It does not say what they found. A number moving is not the same as a life going better. The two are shown apart here.
Felt, but not shown to help. A person notices a change. No study showed it leads anywhere good.
Measured, but not felt. A number moves. The person notices nothing. Both can be true.
Measured, but not shown to matter. A number moves in the good direction. Nobody showed that lives went better.
Matters, but takes years. The result that counts may take longer than anyone would keep watching.
Names that fit none of the three (29)
duration of diarrhea
safety
incidence of antibiotic associated diarrhea
stool consistency
gastrointestinal transit time
sdaei in the first 8 weeks of treatment for cohort ii
number/percentage of immune response to rotavirus vaccine
hb a1c
side effects
probing pocket depth
gut microbiome
plaque index
candida albicans colonization
visceral fat
abortion rate
homa ir index
duration of phototherapy
circulating bile acids
clinical improvement
homa ir
These are harms, study-process measures, or names the rules did not recognise. They are shown rather than dropped.
What is missing or unclear◇Read 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 take◇Read 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 take◇Read 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
Varies by country
❝ 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
Not usually supervised: sold as a supplement or food ingredient where recorded. That is a legal category, not a safety judgement.
❝ Quoted from a source
Where this came from
Copied from a source RNAWiki stored, with the source named.
The identity record classes it as a supplement ingredient; no medicines register records an approval.
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 take∅Nothing 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 unclear◇Read 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
3741 marketed supplement labels list this ingredient, classed as non-nutrient/non-botanical and other combinations.
Those labels carry all other 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.
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 take◇Read from sources, not yet reviewed
What you could measure
Watching one thing carefully can tell you whether it moved. It cannot tell you what moved it.
This is sold without a prescription, so a person can sensibly watch one thing and see whether it moves.
Pick one goal. One goal only. Two at once cannot be told apart afterwards.
Pick one thing to watch. Registered studies measured things like: geometric mean concentration of rotavirus specific iga; weight gain; decrease in serum creatinine level.
Measure before you start. Take the same measurement several times first. One reading is not a starting point.
Know the swing. Write down how much it moves on its own across a normal week.
Change one thing. Change nothing else at the same time, including training and sleep.
Give it the study length. No finished study window is recorded, so no length is suggested here.
Track whether you took it. Missed days are the most common reason a home test shows nothing.
Read the trend. Look at the line across weeks. A single reading tells you almost nothing.
What not to measure
Anything that swings more day to day than the change you are looking for.
A wearable estimate of sleep stages, which is an estimate and not a measurement.
Weight on one morning, which mostly records water.
A feeling you did not write down before starting, such as: global symptom at week 12 primary efficacy population.
When to stop
Stop if something new and unpleasant starts, and ask a pharmacist or doctor.
Stop if you cannot keep everything else steady, because the result will not mean anything.
Stop at the end of the window you set, and read the trend then.
Tracking can show whether something changed for you. It cannot show what caused it.
RNAWiki does not work out an amount for anyone.
What is missing or unclear◇Read 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.
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 people∅Nothing found in the sources checked
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.
∅Nothing found in the sources checked
No traced study record is stored for this substance.
The sources listed were searched and held nothing. That is not the same as nothing existing.
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
✓ Passed
Safety mode resolved
The identity record classes it as a supplement ingredient; no medicines register records an approval.
✓ Passed
Canonical metadata present
slug and display name present
What is missing or unclear◇Read 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
7 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.
The path through the body — 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.
How this medicine reached us — 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)
Q1
What did Metampicillin's largest trial (4000 people) and its longest (9.3 years) measure?
4000 people in Metampicillin's largest registered study, 9.3 years in its longest registered window, measuring All-cause postoperative mortality. ClinicalTrials.gov · 2026-09-01
156 na, 47 phase2, 28 phase3, 16 phase1, 16 phase4, 5 early phase1, 4 na or unstated; NCT02693041; 2021-09-27. Last human test completed 2026, NCT05501470.
Interpretation These counts include studies where Metampicillin 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
156
phase2
47
phase3
28
phase1
16
phase4
16
early phase1
5
2 more recorded rows
na or unstated
4
Last recorded human testNCT05501470
2026-01-30
recorded 2026-09-01 · last checked 2026-09-04
Q2
Metampicillin was tested only in human — what did it show?
accrual/recruitment (5), funding/business (5), sponsor decision unspecified (1) and other (7): Metampicillin's stop wording, clustered. ClinicalTrials.gov · 2026-09-01
"Change company strategy"; 18 of 250 registered studies
Show the evidence
Trial
NCT01463943
withdrawn; "Change company strategy"
NCT01596829
terminated; "low incidence"
NCT01935986
terminated; "Due to bankruptcy of the CRO company"
NCT02021084
withdrawn; "no patient enroled"
NCT02032056
terminated; "Changes in study design"
NCT02286999
withdrawn; "Study did not open for enrollment."
12 further recorded trials
NCT02465294
withdrawn; "study withdrawn due to funding"
NCT02568891
withdrawn; "No funding obtained"
NCT02589964
terminated; "Low Recruitment"
NCT02817165
terminated; "Slow recruitment"
NCT03196453
withdrawn; "The study protocol has been applied in a new study, after te COVID. New registration."
NCT03907501
terminated; "COVID-19 related personnel, reagent and budget related impacts"
NCT04175392
terminated; "lack of enrollment"
NCT04316806
terminated; "Principal Investigator changed his job"
NCT05156333
suspended; "Uneffective"
NCT05279534
terminated; "Sponsor decision"
NCT05315401
withdrawn; "Fail to recruit"
NCT05316064
withdrawn; "funding problem"
recorded 2026-09-01 · last checked 2026-09-04
Q4
Could one person measure Metampicillin's effect on global symptom at week 12 primary efficacy population?
Global symptom at week 12 primary efficacy population: measured in Metampicillin's trials.
global symptom at week 12 primary efficacy population is the recorded endpoint.
Show the evidence
biomarkers
global symptom at week 12 primary efficacy population; 2026-09-01
duration of diarrhea; 2026-09-01
safety; 2026-09-01
incidence of antibiotic associated diarrhea; 2026-09-01
abdominal pain severity; 2026-09-01
stool consistency; 2026-09-01
14 more recorded rows
biomarkers
gastrointestinal transit time; 2026-09-01
biomarkers
sdaei in the first 8 weeks of treatment for cohort ii; 2026-09-01
biomarkers
number/percentage of immune response to rotavirus vaccine; 2026-09-01
biomarkers
geometric mean concentration of rotavirus specific iga; 2026-09-01
biomarkers
total nasal symptom; 2026-09-01
biomarkers
symptom relief; 2026-09-01
biomarkers
hb a1c; 2026-09-01
biomarkers
abdominal pain; 2026-09-01
biomarkers
side effects; 2026-09-01
biomarkers
probing pocket depth; 2026-09-01
biomarkers
gut microbiome; 2026-09-01
biomarkers
plaque index; 2026-09-01
biomarkers
candida albicans colonization; 2026-09-01
biomarkers
visceral fat; 2026-09-01
human trials at or under30
53
Not recorded for this substance
a recorded half-life
smallest human trial
0; NCT01463943; PHASE3; the smallest recorded human enrolment at or below 30; the registry states no direction of its result; WITHDRAWN
Q5
Which of abdominal pain, abdominal pain severity and abortion rate did Metampicillin's trials measure?
abdominal pain, abdominal pain severity and abortion rate lead 40 outcome terms across Metampicillin's trials. ClinicalTrials.gov · 2026-09-01
incidence of antibiotic associated diarrhea, abdominal pain severity, stool consistency, gastrointestinal transit time, sdaei in the first 8 weeks of treatment for cohort ii and number/percentage of immune response to rotavirus vaccine follow.
Show the evidence
global symptom at week 12 primary efficacy population
1
duration of diarrhea
1
safety
1
incidence of antibiotic associated diarrhea
1
abdominal pain severity
1
stool consistency
1
14 more recorded rows
gastrointestinal transit time
1
sdaei in the first 8 weeks of treatment for cohort ii
1
number/percentage of immune response to rotavirus vaccine
1
geometric mean concentration of rotavirus specific iga
1
total nasal symptom
1
symptom relief
1
hb a1c
1
abdominal pain
1
side effects
1
probing pocket depth
1
gut microbiome
1
plaque index
1
candida albicans colonization
1
visceral fat
1
recorded 2026-09-01 · last checked 2026-09-04
Q6
Which of Metampicillin's 3 ongoing trials reports first?
Firmicutes to Bacteroidetes ratio; Change in cry and fuss time; latest 2030-07-31
Show the evidence
Trial
NCT05288790
"Microbiome Metabolites and Alcohol in HIV to Reduce CVD RCT"; n 250; "Firmicutes to Bacteroidetes ratio"; 2027-08-31
NCT05432479
"Study to Evaluate the Efficacy of a Probiotic in Infantile Colic Symptoms Relief"; n 80; "Change in cry and fuss time"; 2026-05
NCT05544396
"Study on the Probiotics Regulating miRNA in H. Pylori-induced Wnt/β-catenin Gastric Carcinogenesis."; n 100; "The IM regression rate one year after H. pylori eradication"; 2030-07-31
recorded 2026-09-01 · last checked 2026-09-04
Q7
Which 154 trials of Metampicillin posted no result?
Posted no result
154 of 154 completed trials
Registrations
NCT00355810, NCT00159523, NCT00683982, NCT01233154, NCT01033461 and NCT01586247, and 148 more
Completion dates
oldest 2006-12; newest 2024-06-01
Show the evidence
Trial
NCT00355810
2006-12
NCT00159523
2007-09
NCT00683982
2008-05
NCT01233154
2008-06
NCT01033461
2008-08
NCT01586247
2009-10
14 further recorded trials
NCT00803829
2011-01
NCT02403960
2011-05
NCT01032941
2011-06
NCT01143623
2011-07
NCT00365469
2011-09
NCT01257620
2011-12
NCT01993524
2012-02
NCT01641341
2012-03
NCT01106924
2012-05
NCT01667653
2012-08
NCT01868737
2012-08
NCT01653652
2012-12
NCT01662206
2012-12
NCT01529359
2013-02-11
Q8
At the median, Metampicillin's trials enrolled 64 people — anything larger?
Median enrolment
64
Largest enrolment
4000
Registered trials counted
249
Where it is registeredIdentifiers, relations and other names
ChEMBL ATC CC BY-SA · 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
✗ 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: 5 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
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