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Mesna free acid

  • Prescription medicine
  • Withdrawn
  • 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 Mesna free acid does in the body

Mesna Injection is indicated as a prophylactic agent in reducing the incidence of ifosfamide-induced hemorrhagic cystitis L imitation of Use: Mesna Injection is not indicated to reduce the risk of hematuria due to other pathological conditions such as thrombocytopenia.

From the FDA-approved label: Mesna reacts chemically with the urotoxic ifosfamide metabolites, acrolein and 4-hydroxy-ifosfamide, resulting in their detoxification. The first step in the detoxification process is the binding of mesna to 4-hydroxy­ ifosfamide forming a non-urotoxic 4-sulfoethylthioifosfamide. Mesna also binds to the double bonds of acrolein and to other urotoxic metabolites and inhibits their effects on the bladder.

Why people take it. Mesna Injection is indicated as a prophylactic agent in reducing the incidence of ifosfamide-induced hemorrhagic cystitis L imitation of Use: Mesna Injection is not indicated to reduce the risk of hematuria due to other pathological conditions such as thrombocytopenia.

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
Professional supervision is normally required. A regulator classifies this substance in a way that restricts how it is supplied.

What the registries record it as

  • The substance registry classes this as chemical.

    FDA substance registry · NR7O1405Q9 · read 2026-08-29

  • Its recorded molecular formula is C2H5NaO3S2, weighing 164.18.

    US prescribing information · 8012b97b-4e39-451f-8e04-542d196e8bc6 · read 2026-08-30

Where each sentence above came from

The use the label states, quoted from it. No plain-language version of this sentence has been written.

The use the label states, quoted from it. It is written for a clinician, not for a reader without medical training.

No statement of the main limit is recorded.

The four opening statements run to 148 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.

Overall Survival (OS) Stratum 1a (randomisation TBI+ chemo-conditioning vs. chemo-conditioning only)

The study did not show it

Who was studied
NCT01949129
How many people
1800
Study design
Phase 2/Phase 3
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. Intravenous

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
  • openFDA NDC Directory · a recorded source, not a stored snapshot
  • openFDA SPL label · a recorded source, not a stored snapshot
  • PubChem PUG-REST · a recorded source, not a stored snapshot

Combination Chemotherapy Followed by Bone Marrow or Peripheral Stem Cell Transplantation in Treating Patients With Acute Myelogenous Leukemia

The study did not show it

Who was studied
NCT00002549
How many people
1520
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. Intravenous

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
  • openFDA NDC Directory · a recorded source, not a stored snapshot
  • openFDA SPL label · a recorded source, not a stored snapshot
  • PubChem PUG-REST · a recorded source, not a stored snapshot

Objective Response (OR)

The study did not show it

Who was studied
NCT00338377
How many people
1230
Study design
Phase 2
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. Intravenous

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
  • openFDA NDC Directory · a recorded source, not a stored snapshot
  • openFDA SPL label · a recorded source, not a stored snapshot
  • PubChem PUG-REST · a recorded source, not a stored snapshot

survival

The study did not show it

Who was studied
NCT00002548
How many people
899
Study design
Phase 3
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. Intravenous

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
  • openFDA NDC Directory · a recorded source, not a stored snapshot
  • openFDA SPL label · a recorded source, not a stored snapshot
  • PubChem PUG-REST · a recorded source, not a stored snapshot

Survival

The study did not show it

Who was studied
NCT00622349
How many people
707
Study design
Phase 3
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. Intravenous

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
  • openFDA NDC Directory · a recorded source, not a stored snapshot
  • openFDA SPL label · a recorded source, not a stored snapshot
  • PubChem PUG-REST · a recorded source, not a stored snapshot

Event-free survival

The study did not show it

Who was studied
NCT00006734
How many people
587
Study design
Phase 3
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. Intravenous

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
  • openFDA NDC Directory · a recorded source, not a stored snapshot
  • openFDA SPL label · a recorded source, not a stored snapshot
  • PubChem PUG-REST · 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 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

People similar to this profile were included.

  • Mesna Injection is indicated as a prophylactic agent in reducing the incidence of ifosfamide-induced hemorrhagic cystitis. Mesna Injection is a cytoprotective agent indicated as a prophylactic agent in reducing the incidence of ifosfamide-induced hemorrhagic cystitis.

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.

What the label states about particular groups

  • On pediatric, the label states: “Mesna Injection contains the preservative benzyl alcohol which has been associated with serious adverse reactions and death when administered intravenously to premature neonates and low birth weight infants.”

    US prescribing information · 8012b97b-4e39-451f-8e04-542d196e8bc6 · read 2026-08-30

  • On older people, the label states: “Clinical studies of mesna did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects.”

    US prescribing information · 8012b97b-4e39-451f-8e04-542d196e8bc6 · read 2026-08-30

  • On people who are pregnant, the label states: “Risk Summary Mesna is used in combination with ifosfamide or other cytotoxic agents.”

    US prescribing information · 8012b97b-4e39-451f-8e04-542d196e8bc6 · read 2026-08-30

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 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 (11)
It was studied for a different goal
The studies measured something else entirely. Nothing in this record points to this reason.
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

Withdrawn

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

Intravenous

Source-linked record

Where this came from

A person wrote this into the record with the study named beside it. No reviewer has signed it off.

The form and route recorded on this substance.

No source is stored against this line.

Who oversees it

Professional supervision is normally required. A regulator classifies this substance in a way that restricts how it is supplied.

Quoted from a source

Where this came from

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

Suppression classes recorded: S4, S8.

No source is stored against this line.

What is in the pack

Sold as injectable, tablet, injectable, injection, solution, given by the intravenous, oral, injection route.

Source-linked record

Where this came from

A person wrote this into the record with the study named beside it. No reviewer has signed it off.

Recorded notes on how this is sold and what that means for what is in the pack.

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

Intravenous

Source-linked record

Where this came from

A person wrote this into the record with the study named beside it. No reviewer has signed it off.

The form used in the studies cited on this page.

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

  • 15 products list this as an active ingredient in the United States drug directory. 15 of them contain it and nothing else.

    FDA National Drug Code directory · 0338-1307 · read 2026-08-29

  • They are sold as injection, solution, powder, solution and tablet, film coated, taken intravenous and oral.

    FDA National Drug Code directory · 0338-1307 · read 2026-08-29

  • The regulator's established pharmacologic class for it is cytoprotective agent [epc].

    FDA National Drug Code directory · 0338-1307 · read 2026-08-29

  • 12 published labels name it as an active ingredient. 12 of them describe this substance alone, which is where its own label text on this page comes from.

    US prescribing information · 8012b97b-4e39-451f-8e04-542d196e8bc6 · read 2026-08-29

  • Those labels are classed as human prescription drug.

    US prescribing information · 8012b97b-4e39-451f-8e04-542d196e8bc6 · read 2026-08-29

  • mesna is intravenous at 3 DOSAGE FORMS AND STRENGTHS Mesna injection: 1 g Multiple-Dose Vial, 100 mg/mL Injection: 1g (100 mg/mL) Multiple-Dose vials ( 3 ), recorded as fda label in effect 2023-05-03 in the United States.

    US prescribing information · 8012b97b-4e39-451f-8e04-542d196e8bc6 · read 2026-08-30

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.

Self-experiment planning is not offered for a prescription or clinician-supervised medicine, withdrawn medicine. The questions below are for a clinician or pharmacist.

Questions worth asking

  • Which of the trials of Mesna free acid 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.

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 Mesna free acid 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.

How many documents were read

  • 12 documents were read for this substance.

    RNAWiki source record

  • 11 of them state the same bioavailability, and they agree.

    RNAWiki source record

  • 11 of them state the same tMax, and they agree.

    RNAWiki source record

  • 12 of them state the same volumeOfDistribution, and they agree.

    RNAWiki source record

Where else this substance is registered

FDA substance identifier (UNII)
NR7O1405Q9
RxNorm concept
204870

Checks this page had to pass

  • Passed

    Identity resolved

    no open identity hold

  • Passed

    No unresolved merge across substance families

    no quarantine open

  • Passed

    Every public sentence names a source

    The opening statement carries the origin: Quoted from a stored source.

  • 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

    Suppression classes recorded: S4, S8.

  • 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.

  1. Withdrawn in Germany, 1991, for "immune system toxicity" (ChEMBL; Open Targets)

What the approval register records

  • 13 approved applications cover products containing this substance. The earliest was NDA019763, approved 19870814 to BAXTER HLTHCARE.

    Drugs@FDA application register · NDA019763 · read 2026-08-29

  • Marketing status on the register: discontinued and prescription.

    Drugs@FDA application register · NDA019763 · read 2026-08-29

  • The earliest marketing start date recorded for a listed product is 19881230.

    FDA National Drug Code directory · 0338-1307 · 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

9 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.
  • How close this is to real life — 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 (9)

On the Mesna free acid label: indicated for what?


"1. INDICATIONS AND USAGE Mesna injection is indicated as a prophylactic agent in reducing the incidence of ifosfamide-induced hemorrhagic cystitis.": indications and usage on Mesna free acid's label. DailyMed label · 49e9c804-9e88-4774-8faf-35bd61b3a8e9 · 2026-01-27

175 registered trials of Mesna free acid — at which phases?


Registered studies posting no result
103 of 175

175 registered studies of Mesna free acid: 106 phase2, 61 phase1, 16 phase3, 14 na, 4 early phase1, 2 na or unstated, 2 phase4. CLINICALTRIALS_SNAPSHOT · 2026-09-01

410 with a PubMed record

Show the evidence
  • phase2
    106
  • phase1
    61
  • phase3
    16
  • na
    14
  • early phase1
    4
  • na or unstated
    2
8 more recorded rows
  • phase4
    2
  • completed
    80
  • terminated
    33
  • recruiting
    24
  • active not recruiting
    20
  • unknown
    9
  • withdrawn
    8
  • suspended
    1

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

Approved in 1988, withdrawn in 1991: what happened to Mesna free acid in Germany?


Approved 1988, withdrawn 1991 in Germany; the register's words: "immune system toxicity". Open Targets drug warning · CHEMBL1098319 · 2026-06-24

2 recorded reasons; Germany

Show the evidence

Reason

  • "immune system toxicity"
  • "immune system toxicity"

recorded 2026-06-24 · last checked 2026-09-04

39 of Mesna free acid's trials stopped: accrual/recruitment, funding/business, sponsor decision unspecified, other?


accrual/recruitment (17), funding/business (4), sponsor decision unspecified (1) and other (17): Mesna free acid's stop wording, clustered. CLINICALTRIALS_SNAPSHOT · 2026-09-01

"poor accrual"; 39 of 175 registered studies

Show the evidence

Trial

  • NCT00002961
    terminated; "poor accrual"
  • NCT00048893
    terminated; "The study was closed to accrual due to very poor enrollment."
  • NCT00072280
    terminated; "Due to poor accrual"
  • NCT00091611
    terminated; "This study was terminated due to low accrual."
  • NCT00126191
    terminated; "closed due to slow accrual"
  • NCT00278512
    terminated; "No participant enrolled over five years. No plan to continue the study."
14 further recorded trials
  • NCT00278564
    terminated; "high relapse rate"
  • NCT00424489
    terminated; "No participants enrolled for more than two years. No plan to continue study."
  • NCT00473551
    terminated; "Terminated due to slow accrual."
  • NCT00578292
    terminated; "Stem cell transplant was determined SOC for this disease (study is not relevant)"
  • NCT00623077
    terminated; "Replaced by another study"
  • NCT00673179
    terminated; "Low accrual."
  • NCT00698009
    terminated; "Slow accrual."
  • NCT00758667
    terminated; "preliminary analysis showed no difference"
  • NCT00924287
    terminated; "This study was terminated after the first patient treated on study died as a result of the treatment."
  • NCT00941928
    terminated; "Slow accrual"
  • NCT01258634
    terminated; "PI no longer affiliated with institution; only 2 subjects enrolled"
  • NCT01445821
    terminated; "Developed a better regimen: DIAD. Cast. 2018 NCT03593902"
  • NCT01670084
    withdrawn; "No Accrual"
  • NCT02029638
    terminated; "Slow accrual"

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

Mesna free acid's half-life is 0.36 hours — which schedules were studied?


0.36 hours, the half-life Mesna free acid's label states: "Mean plasma elimination half-lives of mesna and dimesna are 0.36 hours and 1.17 hours, respectively." DailyMed label · 49e9c804-9e88-4774-8faf-35bd61b3a8e9 · 2026-01-27

tmax 1.5 to 4 hours; bioavailability 58 %.

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  • half life pharmacokinetics
    0.36 hours; Mean plasma elimination half-lives of mesna and dimesna are 0.36 hours and 1.17 hours, respectively.
  • tmax pharmacokinetics
    1.5 to 4 hours; Absorption Following oral administration, peak plasma concentrations were reached within 1.5 to 4 hours and 3 to 7 hours for free mesna and total mesna (mesna plus dimesna and mixed disulfides), respectively.
  • bioavailability pharmacokinetics
    58 %; Oral bioavailability averaged 58% (range 45 to 71%) for free mesna and 89% (range 74 to 104%) for total mesna based on plasma AUC data from 8 healthy volunteers who received 1,200 mg oral or intravenous doses.
  • metabolism pharmacokinetics
    Metabolism Analogous to the physiological cysteine-cystine system, mesna is rapidly oxidized to its major metabolite, mesna disulfide (dimesna).

recorded 2026-01-27 · last checked 2026-09-04

Which running trial of Mesna free acid could settle lifespan?


NCT04187105 measures Rate of 1 year Graft-Versus-Host Disease (GVHD) free, relapse free survival (GRFS) survival, reading out 2026-12.

10 open trials; n 27; "BMT-06: Study of Intensity Modulated Total Marrow Irradiation (IM-TMI)"

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Trial

  • NCT04187105
    "BMT-06: Study of Intensity Modulated Total Marrow Irradiation (IM-TMI)"; n 27; "Rate of 1 year Graft-Versus-Host Disease (GVHD) free, relapse free survival (GRFS) survival"; 2026-12
  • NCT04904588
    "HLA-Mismatched Unrelated Donor Hematopoietic Cell Transplantation With Post-Transplantation Cyclophosphamide"; n 300; "Overall Survival"; 2026-12
  • NCT06001385
    "HLA-Mismatched Unrelated Donor Peripheral Blood Stem Cell Transplantation With Reduced Dose Post Transplantation Cyclophosphamide GvHD Prophylaxis"; n 313; "Infection Free Survival"; 2026-12-30
  • NCT01864109
    "Irinotecan and Temozolomide in Combination With Existing High Dose Alkylator Based Chemotherapy for Treatment of Patients With Newly Diagnosed Ewing Sarcoma"; n 83; "event free survival of patients with localized disease"; 2027-05
  • NCT03821610
    "A Comparison of Reduced Dose Total Body Irradiation (TBI) and Cyclophosphamide With Fludarabine and Melphalan Reduced Intensity Conditioning in Adults With Acute Lymphoblastic Leukaemia (ALL) in Complete Remission. (ALL-RIC)"; n 242; "Disease Free Survival (DFS)"; 2027-11-22
  • NCT05436418
    "The Lowest Effective Dose of Post-Transplantation Cyclophosphamide in Combination With Sirolimus and Mycophenolate Mofetil as Graft-Versus-Host Disease Prophylaxis After Reduced Intensity Conditioning and Peripheral Blood Stem Cell Transplantation"; n 260; "Phase II: Evaluate the efficacy of PTCy, at the lowest dose determined for each HLA-matching arm from phase I, as assessed by 1-year GVHD-free relapse-free survival (GRFS) rate."; 2028-06-25
4 further recorded trials
  • NCT04530565
    "Testing the Use of Steroids and Tyrosine Kinase Inhibitors With Blinatumomab or Chemotherapy for Newly Diagnosed BCR-ABL-Positive Acute Lymphoblastic Leukemia in Adults"; n 348; "Overall survival (OS)"; 2028-07-01
  • NCT07052370
    "TCRαβ-depleted Progenitor Cell Graft With Early Memory T-cell DLI, Plus Selected Use of Blinatumomab, in naïve T-cell Depleted Haploidentical Donor Hematopoietic Cell Transplantation for Hematologic Malignancies"; n 30; "Number of participants experiencing grade 3-4 GVHD and/or transplant related mortality (TRM)."; 2030-12
  • NCT02106988
    "Concurrent Chemotherapy and Radiation Therapy for Newly Diagnosed Nasal NK Cell Lymphoma"; n 26; "Progression-Free Survival (PFS)"; 2034-01-31
  • NCT07428993
    "Evaluating Efficacy of B7-H3-CAR T Cells Administered at the End of Upfront Map Chemotherapy in Patients With Newly Diagnosed High-Risk Osteosarcoma"; n 41; "Event-free survival (EFS), defined as time from SJCARB7H3-41BBL infusion to disease relapse, progressive disease, new systemic therapy, secondary malignancy or death"; 2035-12

Which 36 trials of Mesna free acid posted no result?


Posted no result
36 of 36 completed trials
Registrations
NCT00002691, NCT00002675, NCT00001300, NCT00002510, NCT00002865 and NCT00002829, and 30 more
Completion dates
oldest 2000-06; newest 2024-03-10
Show the evidence

Trial

  • NCT00002691
    2000-06
  • NCT00002675
    2001-01
  • NCT00001300
    2001-03
  • NCT00002510
    2001-06
  • NCT00002865
    2001-08
  • NCT00002829
    2002-04
14 further recorded trials
  • NCT00002802
    2003-09
  • NCT00002509
    2003-12
  • NCT00058578
    2004-06
  • NCT00002634
    2004-09
  • NCT00223548
    2004-12
  • NCT00040482
    2005-08
  • NCT00002740
    2005-09
  • NCT00002822
    2005-11
  • NCT00002494
    2006-01
  • NCT00002804
    2006-04
  • NCT00002816
    2006-04
  • NCT00002565
    2007-02-05
  • NCT00002785
    2007-03
  • NCT00002941
    2007-03

At the median, Mesna free acid's trials enrolled 30 people — anything larger?


Median enrolment
30
Largest enrolment
1520
Registered trials counted
169

Where do the label and the trials disagree about Mesna free acid?


"immune system toxicity" against "approved": withdrawal status vs register status for Mesna free acid.

OPEN_TARGETS_DRUG_WARNING, Drugs@FDA; 1 recorded pair

Show the evidence
  • OPEN_TARGETS_DRUG_WARNING CHEMBL1098319
    immune system toxicity; 2026-06-24
  • Drugs@FDA ANDA203364
    approved; 2026-08-28
Where it is registered

Where it’s registered

Withdrawn in Germany, 1991, for "immune system toxicity" (ChEMBL; Open Targets)

Identifiers, relations and other names

The exact record

ChEMBL id
CHEMBL1098319
PubChem CID
598
CAS number
3375-50-6
RxCUI
1546354
InChIKey
ZNEWHQLOPFWXOF-UHFFFAOYSA-N
Also called
2-MERCAPTOETHANESULFONIC ACID, Coenzyme m, MESNA, mercaptoethane sulfonate, ETHANESULFONIC ACID, 2-MERCAPTO-, MONOSODIUM SALT, MESNA [EP MONOGRAPH], MESNA [JAN], MESNA [MART.], MESNA [MI], MESNA [ORANGE BOOK], MESNA [USAN], MESNA [USP IMPURITY]
Salt form
Coenzyme m sodium salt, sodium 2-mercaptoethane sulfonate, MESNA INJECTION
Development code
D 7093, NSC-113891
Trade name
Mesnex, Mistabron, Uromitexan
Sources (5)

Sources

ChEMBL 37 — CC BY-SA 3.0 Unported · ClinicalTrials.gov — US Government work · Open Targets 26.06 — CC0 · mixed register set; per-register licences in docs/specs/corpus-20k-sources.md · openFDA / DailyMed — US Government work

How these records are assembled · Which registers were checked

Index-quality checks
  • identity passed: no open identity hold
  • required summary fields resolved: 4 required field(s) not terminal: Why people use it, 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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