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Erythromycin

FDA-approved product (ointment, ophthalmic), marketed as A/T/S, Akne-Mycin, C-Solve-2 and 34 more.

Registered studies
50+
Lab records
32
Pathogens at ≥40%
2 of 4

Chemical structure

Chemical structure of Erythromycin
A drawing shows what the molecule is, not what it does.

Existing / approved use

Documented · FDA, WHO, ChEMBL

Approved for

  • Acne
  • Bacterial disease
  • Eye infection
  • Infection
  • Whooping cough

Indications ChEMBL records as approved, from FDA and DailyMed labels. Label ↗

WHO therapeutic group
Antiinfectives for treatment of acne; Macrolides; Antibiotics
FDA pharmacologic class
Macrolide; Macrolide Antimicrobial FDA label ↗
Anti-infective classification
Classified as an existing antimicrobial.WHO ATC D10AF02; WHO ATC D10AF52; WHO ATC J01FA01; WHO ATC S01AA17

Repurposing investigation

Erythromycin is already an antimicrobial, so it is not counted among the repurposing candidates. Its AI-predicted activity is shown below for reference.

AI-predicted activity

AI prediction · nothing measured
  • MRSA28.0% AI-predicted activityBelow the ≥40% mark this site uses to surface candidates. This medicine was in the model's training data, so this is recall, not a new prediction.
  • E. coli3.0% AI-predicted activityBelow the ≥40% mark this site uses to surface candidates. This medicine was in the model's training data, so this is recall, not a new prediction.
  • K. pneumoniae52.7% AI-predicted activityAt or above the ≥40% mark this site uses to surface candidates. This medicine was in the model's training data, so this is recall, not a new prediction.
  • M. tuberculosis71.4% AI-predicted activityAt or above the ≥40% mark this site uses to surface candidates.

A model’s estimate of laboratory activity against each pathogen species. It is not clinical effectiveness.

Evidence

Clinical and experimental

Documented evidence

Clinical

50+registered studies name this medicine, for any condition. The registry search keeps the first 50, so there may be more. See them below.

Experimental

  • MRSA: measured active in 17 of 25 lab records
  • E. coli: measured active in 0 of 1 lab record
  • K. pneumoniae: measured active in 6 of 6 lab records
Show the 32 laboratory records, with sources

Loading records…

“Active” means the measured value reached this project’s laboratory cutoff (10 µM or stronger). A laboratory result does not show an effect in patients.

Docking

Computational · nothing measured

Dihydrofolate reductase ↗ (E. coli)

Not yet docked: queued in the docking rundetails

KPC-2 carbapenemase ↗ (K. pneumoniae)

Not yet docked: queued in the docking rundetails

Enoyl-ACP reductase (InhA) ↗ (M. tuberculosis)

Not yet docked: queued in the docking rundetails

Dihydrofolate reductase ↗ (MRSA)

Not yet docked: queued in the docking rundetails

AutoDock Vina, one experimentally solved protein per pathogen. This project’s screening target is -7.0 kcal/mol, its own mark rather than a universal cutoff. A docking score is a structural hypothesis, not proof of binding, and requires experimental validation.

Other medicines to investigate

AI prediction · nothing measured

Other repurposing candidates: approved medicines besides Erythromycin with AI-predicted activity ≥40% against the chosen pathogen, leaving out existing antimicrobials. They are computational candidates for further investigation, not alternatives and not recommendations.

Sorted by AI-predicted activity, high to low. The order is not a ranking of which medicine is better.

Registered studies

A registration describes a study; it does not establish a positive result.

  • Clarithromycin 500 mg Tablets Under Non-Fasting Conditions

    NCT00836706 · start 2002-07

    Registered record
    Registry ID
    NCT00836706
    Conditions
    Healthy
    Interventions
    clarithromycin; BIAXIN®
    Study type
    INTERVENTIONAL
    Phase
    Phase 1
    Registry status
    Completed
    Start
    2002-07
    Completion
    2002-07
    Enrolment
    24

    As stored from ClinicalTrials.gov. Registration describes a study; it does not mean the study worked.

    ConditionHealthy
    Interventionclarithromycin; BIAXIN®
    PhasePhase 1
    Registry statusCompleted
  • Risk of Acute Liver Injury in Users of Antimicrobials

    NCT01434173 · start 2001-07

    Registered record
    Registry ID
    NCT01434173
    Conditions
    Drug-Induced Liver Injury
    Interventions
    Moxifloxacin (Avelox, BAY12-8039); Amoxicillin, Amoxicillin plus clavulanic acid, Cefuroxime, Clarithromycin, Doxycycline, Levofloxacin, Telithromycin
    Study type
    OBSERVATIONAL
    Phase
    Not recorded
    Registry status
    Completed
    Start
    2001-07
    Completion
    2009-03
    Enrolment
    1,299,056

    As stored from ClinicalTrials.gov. Registration describes a study; it does not mean the study worked.

    ConditionDrug-Induced Liver Injury
    InterventionMoxifloxacin (Avelox, BAY12-8039); Amoxicillin, Amoxicillin plus clavulanic acid, Cefuroxime, Clarithromycin, Doxycycline, Levofloxacin, Telithromycin
    PhaseNot recorded
    Registry statusCompleted
  • Azithromycin/Bicillin Syphilis

    NCT00031499 · start 2000-06

    Registered record
    Registry ID
    NCT00031499
    Conditions
    Syphilis
    Interventions
    Azithromycin; Benzathine Penicillin; Doxycycline
    Study type
    INTERVENTIONAL
    Phase
    Phase 3
    Registry status
    Completed
    Start
    2000-06
    Completion
    2009-03
    Enrolment
    593

    As stored from ClinicalTrials.gov. Registration describes a study; it does not mean the study worked.

    ConditionSyphilis
    InterventionAzithromycin; Benzathine Penicillin; Doxycycline
    PhasePhase 3
    Registry statusCompleted
  • Phase II Study of Tailored-Dose Docetaxel in Metastatic Breast Cancer

    NCT00148070 · start 1999-03

    Registered record
    Registry ID
    NCT00148070
    Conditions
    Metastatic Breast Cancer
    Interventions
    Docetaxel; Erythromycin Breath Test (ERMBT)
    Study type
    INTERVENTIONAL
    Phase
    Phase 2
    Registry status
    Completed
    Start
    1999-03
    Completion
    2006-02
    Enrolment
    45

    As stored from ClinicalTrials.gov. Registration describes a study; it does not mean the study worked.

    ConditionMetastatic Breast Cancer
    InterventionDocetaxel; Erythromycin Breath Test (ERMBT)
    PhasePhase 2
    Registry statusCompleted
  • Azithromycin Combination Therapy for Malaria

    NCT00299208

    Registered record
    Registry ID
    NCT00299208
    Conditions
    Plasmodium Falciparum Malaria
    Interventions
    Artesunate; Azithromycin; Quinine
    Study type
    INTERVENTIONAL
    Phase
    Phase 2
    Registry status
    Completed
    Start
    Not recorded
    Completion
    2005-07
    Enrolment
    120

    As stored from ClinicalTrials.gov. Registration describes a study; it does not mean the study worked.

    ConditionPlasmodium Falciparum Malaria
    InterventionArtesunate; Azithromycin; Quinine
    PhasePhase 2
    Registry statusCompleted