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Bis-Choline Tetrathiomolybdate

Alexion Pharmaceuticals, Inc. · Phase 2 active Small molecule ✓ Verified May 2026

Bis-Choline Tetrathiomolybdate is a Chelating agent Small molecule drug developed by Alexion Pharmaceuticals, Inc.. It is currently in Phase 2 development for Wilson's disease. Also known as: ALXN1840.

Bis-Choline Tetrathiomolybdate is a chelating agent that binds to copper, reducing its availability for incorporation into ceruloplasmin and subsequent deposition in the brain.

Bis-Choline Tetrathiomolybdate is a small molecule chelating agent that functions as a copper chelating agent. It is being studied in clinical trials for Wilson Disease and its effects on the metabolism of certain substances in healthy participants.

Likelihood of approval
12.3% vs 15.3% industry baseline
If approved by FDA: likely 2031–2034
Steps remaining: Phase 3 → NDA/BLA submission
Confidence: Medium
Why this estimate
  • Baseline phase 2 → approval rate +15.3pp
    Industry-wide phase 2 drugs reach approval ~15.3% of the time (BIO/Informa 2023 industry benchmark across all therapeutic areas).
  • CNS / neurology attrition -3.0pp
    CNS drugs have historically high Phase 3 failure rates (notably in Alzheimer disease + major depression).
Predicted approval windows by jurisdiction (conditional on FDA approval)
Regulator Country Likely year Lag vs FDA
FDA US 2031–2034
EMA EU 2032–2035 +0.7 yr
MHRA GB 2032–2035 +0.7 yr
Health Canada CA 2032–2036 +0.9 yr
TGA AU 2032–2036 +1.2 yr
PMDA JP 2032–2036 +1.5 yr
NMPA CN 2033–2037 +2.3 yr
MFDS KR 2032–2036 +1.4 yr
CDSCO IN 2032–2037 +1.8 yr
ANVISA BR 2033–2037 +2.3 yr

Hover any row for the lag rationale. Lag estimates are reduced when the drug has FDA Breakthrough or EMA PRIME designation (sponsors file globally in parallel).

Estimate based on the BIO/Informa industry phase transition rates plus per-drug modifiers for therapeutic area, sponsor type, FDA designations, mechanism, and trial design. Per-jurisdiction lags from Tufts CSDD international approval studies. Not investment, clinical or regulatory advice. Methodology: /methodology#likelihood.

At a glance

Generic nameBis-Choline Tetrathiomolybdate
Also known asALXN1840
SponsorAlexion Pharmaceuticals, Inc.
Drug classChelating agent
TargetCopper
ModalitySmall molecule
Therapeutic areaNeurology
PhasePhase 2

Mechanism of action

This mechanism is thought to be beneficial in treating conditions such as Wilson's disease, where excessive copper accumulation in the brain leads to neurodegeneration. By reducing copper levels, Bis-Choline Tetrathiomolybdate may help slow or halt disease progression.

Approved indications

Common side effects

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

Competitive intelligence

For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape:

Frequently asked questions about Bis-Choline Tetrathiomolybdate

What is Bis-Choline Tetrathiomolybdate?

Bis-Choline Tetrathiomolybdate is a Chelating agent drug developed by Alexion Pharmaceuticals, Inc., indicated for Wilson's disease.

How does Bis-Choline Tetrathiomolybdate work?

Bis-Choline Tetrathiomolybdate is a chelating agent that binds to copper, reducing its availability for incorporation into ceruloplasmin and subsequent deposition in the brain.

What is Bis-Choline Tetrathiomolybdate used for?

Bis-Choline Tetrathiomolybdate is indicated for Wilson's disease.

Who makes Bis-Choline Tetrathiomolybdate?

Bis-Choline Tetrathiomolybdate is developed by Alexion Pharmaceuticals, Inc. (see full Alexion Pharmaceuticals, Inc. pipeline at /company/alexion-pharmaceuticals-inc).

Is Bis-Choline Tetrathiomolybdate also known as anything else?

Bis-Choline Tetrathiomolybdate is also known as ALXN1840.

What drug class is Bis-Choline Tetrathiomolybdate in?

Bis-Choline Tetrathiomolybdate belongs to the Chelating agent class. See all Chelating agent drugs at /class/chelating-agent.

What development phase is Bis-Choline Tetrathiomolybdate in?

Bis-Choline Tetrathiomolybdate is in Phase 2.

What are the side effects of Bis-Choline Tetrathiomolybdate?

Common side effects of Bis-Choline Tetrathiomolybdate include Hemolysis.

What does Bis-Choline Tetrathiomolybdate target?

Bis-Choline Tetrathiomolybdate targets Copper and is a Chelating agent.

Related

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing