This page shows what was measured, who it was measured in, and what that does not settle.
What Interferon alfa-2b 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
Its recorded molecular formula is C16H17Cl3I2N3NaO5S, weighing 746.5.
PubChem record · 71306834 · 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 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.
Comparison of PEG-Intron and Two Different Doses of Ribavirin for the Treatment of Chronic Hepatitis C In Treatment Naïve Subjects
✗ The study did not show it
Who was studied
NCT00299936
How many people
5000
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.
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
HBsAg clearance rate
✗ The study did not show it
Who was studied
NCT05182463
How many people
5000
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.
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
Sustained Virologic Response (SVR) Rate
✗ The study did not show it
Who was studied
NCT00081770
How many people
4469
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.
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
Interferon Alfa-2b in Treating Patients With Melanoma and Early Lymph Node Metastasis
✗ The study did not show it
Who was studied
NCT00004196
How many people
3000
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.
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
Sustained Virologic Response (SVR) Rate
✗ The study did not show it
Who was studied
NCT00039871
How many people
2333
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.
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
Number of Participants With Relapse During the LTFU Among Sustained Responders From Previous Treatment Studies With Boceprevir or Narlaprevir (Durability of Virologic Response)
✗ The study did not show it
Who was studied
NCT00689390
How many people
1954
Study design
Phase 2/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.
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 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 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 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 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
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 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
23 marketed supplement labels list this ingredient, classed as botanical, botanical with nutrients 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.
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 (7)
Q1
93 registered trials of Interferon alfa-2b — at which phases?
Registered studies posting no result
58 of 93
93 registered studies of Interferon alfa-2b: 49 phase2, 27 phase1, 20 phase3, 4 na or unstated, 4 phase4, 3 na. CLINICALTRIALS_SNAPSHOT · 2026-09-01
accrual/recruitment (8), funding/business (1), sponsor decision unspecified (3) and other (4): Interferon alfa-2b's stop wording, clustered. CLINICALTRIALS_SNAPSHOT · 2026-09-01
"Study terminated as principal investigator \[PI\] left the university."; 16 of 93 registered studies
Show the evidence
Trial
NCT00005984
terminated; "Study terminated as principal investigator \[PI\] left the university."
NCT00015912
terminated; "Administratively complete."
NCT00485563
terminated; "Changes in treatment paradigm resulted in a lower than expected rate of accrual."
NCT00505635
terminated; "Slow accrual"
NCT00522249
terminated; "PI decision"
NCT00561912
terminated; "Low accrual."
10 further recorded trials
NCT00686478
withdrawn; "The trial is not being done at this time"
NCT00727077
terminated; "Study halted due to low recruitment. The 3 participants at time of termination transferred into study P04538 (NCT00727077). See NCT00727077 for details/results."
NCT00854581
terminated; "Investigator Decision"
NCT00963664
withdrawn; "Modifications will be necessary before full IRB approval will be secured."
NCT01409174
terminated; "Slow accrual, closed in Phase I."
NCT02323659
terminated; "Slow recruitment"
NCT03178123
terminated; "The study strategy was adjusted, and the company decided to terminate the study early"
NCT03552549
terminated; "This study was closed to enrollment prematurely due to sub-optimal accrual."
NCT04093323
terminated; "Funding completed"
NCT04379518
terminated; "Low accrual"
recorded 2026-09-01 · last checked 2026-09-04
Q3
Which running trial of Interferon alfa-2b could settle lifespan?
NCT00003641 measures 5-year Relapse-free Survival Rate, reading out 2026-12.
4 open trials; n 1150; "High-Dose Interferon Alfa in Treating Patients With Stage II or Stage III Melanoma"
Show the evidence
Trial
NCT00003641
"High-Dose Interferon Alfa in Treating Patients With Stage II or Stage III Melanoma"; n 1150; "5-year Relapse-free Survival Rate"; 2026-12
NCT02506153
"Physician/Patient Choice of Either High-Dose Recombinant Interferon Alfa-2B or Ipilimumab, Versus Pembrolizumab in Treating Patients With Stage III-IV High Risk Melanoma That Has Been Removed by Surgery"; n 1301; "Overall Survival (OS)"; 2027-01-23
NCT00569127
"Octreotide Acetate and Recombinant Interferon Alfa-2b or Bevacizumab in Treating Patients With Metastatic or Locally Advanced, High-Risk Neuroendocrine Tumor"; n 427; "Central Review-based Progression-Free Survival"; 2027-01-31
NCT01274338
"Ipilimumab or High-Dose Interferon Alfa-2b in Treating Patients With High-Risk Stage III-IV Melanoma That Has Been Removed by Surgery"; n 1673; "Recurrence-free Survival (RFS; Arm B [HDI] vs. Arm C [LIP])"; 2027-02-02
Q4
Which 32 trials of Interferon alfa-2b posted no result?
Posted no result
32 of 32 completed trials
Registrations
NCT00000694, NCT00001035, NCT00001114, NCT00038376, NCT00002621 and NCT00002882, and 26 more
Completion dates
oldest 1992-08; newest 2021-09-22
Show the evidence
Trial
NCT00000694
1992-08
NCT00001035
1996-09
NCT00001114
2000-03
NCT00038376
2005-06-30
NCT00002621
2005-09
NCT00002882
2006-04
14 further recorded trials
NCT00381953
2006-07
NCT00656006
2007-04
NCT00115908
2007-05
NCT00097435
2007-08
NCT00329368
2008-06
NCT01259934
2008-06
NCT00593151
2009-03
NCT00629200
2010-02-10
NCT02074605
2010-05
NCT00221702
2010-10
NCT00624325
2010-12
NCT00059826
2011-02
NCT00489385
2011-03-15
NCT00863239
2011-11
Q5
At the median, Interferon alfa-2b's trials enrolled 36 people — anything larger?
Median enrolment
36
Largest enrolment
1673
Registered trials counted
92
Q6
What do 10961 spontaneous reports say about Interferon alfa-2b — and not say?
These are reports people sent to a regulator. They do not show the medicine caused the reaction. Nobody counted how many people took the medicine and reported nothing. The same event can be reported more than once, and many reports are incomplete. News coverage, lawsuits and new warnings change how often people report. A count is not a rate and not a risk.
Interferon alfa-2b appears in spontaneous reports to regulators. Across the 10 most-reported reaction terms, 10961 reaction mentions were counted: anaemia 1808; fatigue 1480; nausea 1263; white blood cell count decreased 1115. FAERS via Open Targets · CHEMBL1201558 · 2026-06-24
Show the evidence
anaemia
1808
fatigue
1480
nausea
1263
white blood cell count decreased
1115
pyrexia
1057
rash
938
4 more recorded rows
headache
902
haemoglobin decreased
831
depression
802
platelet count decreased
765
recorded 2026-06-24 · last checked 2026-09-04
Q9
Where do the label and the trials disagree about Interferon alfa-2b?
"withdrawn" against "approved": withdrawal status vs register status for Interferon alfa-2b.
EMA_MEDICINE_REGISTER, Drugs@FDA; 1 recorded pair
Show the evidence
EMA_MEDICINE_REGISTEREMEA/H/C/000281
withdrawn; 2026-09-04
Drugs@FDABLA103132
approved; 2026-08-28
Where it is registered
Where it’s registered
Withdrawn, in European Union; no reason is published (EMA Medicine.csv)
ChEMBL 37 — CC BY-SA 3.0 Unported · ChEMBL ATC CC BY-SA · ClinicalTrials.gov — US Government work · EMA medicine register · Open Targets 26.06 — CC0 · 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
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.