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Comparison Centre

Two compounds, the same questions, no cherry-picking

Marketing compares compounds on whichever measure flatters them. This compares them on the same fields every time — including the awkward ones like how much human safety data exists. Every score here rates the evidence, not the compound: a higher number means stronger or more mature research, not that something is safer or works better.

Sharing keeps the two compounds you picked.

How to read these scores

Every number here rates the evidence, not the compound. They are editorial 0-100 strength ratings, not percentages, and not a rating out of five stars.

  • Human efficacy evidence strength — Higher = more and better-quality human evidence. It does not mean the effect is bigger or that the compound works for you.
  • Preclinical evidence strength — Higher = more animal, tissue or cell research. Preclinical results are a starting point, not proof of a human benefit.
  • Human safety evidence strength — Higher = more mature, better-documented human safety data. It does not mean the compound is safer than one with a lower number. A score of 80 does not mean “80% safe”.
  • Evidence level (L0-L5) — the strongest type of study behind the compound, from anecdote (L0) to large replicated human trials (L5). It is a description of the study evidence, not a quality, safety or recommendation rating.
  • Confidence — how likely we think it is that this rating changes as new research lands. Low confidence means the picture is unsettled, not that the compound is bad.

None of these ratings is medical advice, a safety guarantee, or a recommendation to use anything. How we grade evidence.

Icatibant

A synthetic decapeptide that blocks bradykinin B2 receptors, approved for acute attacks of hereditary angioedema in adults.

L5Repeated human trialsApproved for a specific indication · FDA (US)
Full profile

Enfuvirtide

The first HIV entry inhibitor — a 36-amino-acid peptide that blocks viral fusion.

L5Repeated human trialsApproved for a specific indication · FDA (US)
Full profile

How far human research has progressed

Icatibant

Approved rare-disease medicine

Enfuvirtide

Approved antiretroviral, now largely historical in practice

Claim-specific benefit evidence

A human exposure study or trial registration does not establish that the claimed benefit occurs.

Icatibant

Not separately assessed; see the full profile.

Enfuvirtide

Not separately assessed; see the full profile.

Human research context

Icatibant

Approved rare-disease medicine

Enfuvirtide

Approved antiretroviral, now largely historical in practice

Human efficacy evidence strength

Higher = more and better-quality human evidence. It does not mean the effect is bigger or that the compound works for you.

Icatibant

Strength of the human efficacy evidence75 of 100 evidence strength

Enfuvirtide

Strength of the human efficacy evidence82 of 100 evidence strength

Preclinical (animal / lab) evidence strength

Higher = more animal, tissue or cell research. Preclinical results are a starting point, not proof of a human benefit.

Icatibant

Strength of the animal and lab evidence65 of 100 evidence strength

Enfuvirtide

Strength of the animal and lab evidence78 of 100 evidence strength

Human safety evidence strength

Higher = more mature, better-documented human safety data. It does not mean the compound is safer than one with a lower number.

Icatibant

Strength of the human safety evidence75 of 100 evidence strength

Enfuvirtide

Strength of the human safety evidence78 of 100 evidence strength

Regulatory status (legal position, not proof it works)

Icatibant

Named regulators: FDA (US)

FDA-approved (Firazyr) for treatment of acute attacks of hereditary angioedema in adults 18 years and older, given by subcutaneous injection.

Enfuvirtide

Named regulators: FDA (US)

FDA-approved (Fuzeon) in combination with other antiretrovirals for treatment-experienced patients with HIV-1 with evidence of ongoing viral replication. Approval is specific to that role in combination therapy.

Common claims

Icatibant

  • · Treats acute hereditary angioedema attacks

Enfuvirtide

  • · Reduces viral load in treatment-experienced HIV-1 patients as part of combination therapy

How settled our evidence rating is

Icatibant

High confidence in ratingL5Repeated human trials

Enfuvirtide

High confidence in ratingL5Repeated human trials

Cancer-related questions raised by the biology

These are theoretical or monitored questions raised by how a compound works. They are not evidence that it causes cancer.

Icatibant

No established human cancer signal within approved use.

Enfuvirtide

No established human cancer signal within approved use.

What this adds up to, in plain English

Icatibant

Repeated large human trials support specific uses in the groups studied. That is strong evidence something works there — not proof it suits everyone or is free of risk.

Enfuvirtide

Repeated large human trials support specific uses in the groups studied. That is strong evidence something works there — not proof it suits everyone or is free of risk.

A comparison is not a recommendation

Neither column here is an endorsement, and the compound with the higher numbers is not the “better” or “safer” one — it is simply the one with more or better-quality research behind it. Two compounds can both be poorly evidenced, and better-evidenced says nothing about whether either is a sensible idea for a specific person. That is a conversation for a qualified clinician.