Surotomycin

Cyclic Lipopeptide AntibioticRx: InvestigationalCompound: Investigational

Also known as: CB-064, CB-315, MK-4261, Surotomycin

Educational Only — Not medical advice. Consult a qualified clinician before using any peptide.

Source Surotomycin at Peptiology

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Summary

Surotomycin is a semisynthetic cyclic lipopeptide antibiotic developed for oral treatment of Clostridioides difficile infection. It reached Phase 2 clinical trials but was not pursued further due to lack of efficacy.

Mechanism of Action

Binds to bacterial cell membrane and disrupts membrane potential, causing rapid bactericidal activity against Gram-positive organisms including Clostridioides difficile

Routes of Administration

Oral

Goals & Uses

  • Prevention of CDI recurrenceAnti InfectiveModerate
  • Clostridioides difficile infectionInfectionModerate
  • Treatment of Clostridioides difficile infectionAntimicrobialModerate

Contraindications

  • Known hypersensitivity to surotomycin or related lipopeptidesAllergyHigh
  • Hypersensitivity to surotomycin or related lipodepsipeptidesAllergyHigh

Adverse Effects

  • HeadacheNeurologicUncommonPain in the head or upper neck
  • NauseaGastrointestinalCommonFeeling of sickness or urge to vomit
  • VomitingGastrointestinalCommonForceful expulsion of stomach contents
  • Diarrhea (non‑C. difficile)GastrointestinalCommon
  • DiarrheaGastrointestinalCommonLoose or frequent stools
  • Abdominal painGastrointestinalCommonPain or discomfort in the abdomen

Drug Interactions

  • HMG-CoA reductase inhibitors (statins)Low
  • Concurrent use of other antibioticsModerate

Population Constraints

  • Severe renal impairmentOrgan ImpairmentRelative
  • Pediatric patientsAgeRelative
  • Pregnant womenReproductiveRelative

Regulatory Status

  • European UnionInvestigationalClinical trials conducted; not approved by EMA
  • United StatesInvestigationalInvestigational New Drug (IND) filed; no FDA approval
  • United KingdomInvestigationalNo MHRA approval; development discontinued

No regulatory approval; development discontinued after Phase 2 trials.

Evidence & Sources

No sources recorded yet.

Frequently Asked Questions

What is Surotomycin?

Surotomycin is a semisynthetic cyclic lipopeptide antibiotic developed for oral treatment of Clostridioides difficile infection. It reached Phase 2 clinical trials but was not pursued further due to lack of efficacy.

What is Surotomycin used for?

Surotomycin is educationally associated with: Prevention of CDI recurrence, Clostridioides difficile infection, Treatment of Clostridioides difficile infection. Educational only — not medical advice.

How is Surotomycin administered?

Recorded routes of administration: Oral.

What are the potential side effects of Surotomycin?

Reported adverse effects include: Headache, Nausea, Vomiting, Diarrhea (non‑C. difficile), Diarrhea, Abdominal pain. This list is not exhaustive — consult a qualified clinician.

Who should avoid Surotomycin?

Recorded contraindications: Known hypersensitivity to surotomycin or related lipopeptides, Hypersensitivity to surotomycin or related lipodepsipeptides. Consult a qualified clinician before use.

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