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Minocycline Hydrochloride

FDA-approved product (capsule, oral), marketed as Amzeeq, Arestin, Dynacin and 7 more.

Registered studies
50+
Lab records
26
Pathogens at ≥40%
4 of 4

Chemical structure

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

Existing / approved use

Documented · FDA, WHO, ChEMBL

Approved for

  • Acne
  • Bacterial disease
  • Conjunctivitis
  • Infection
  • Ornithosis
  • Periodontitis
  • Respiratory tract infectious disorder
  • Rosacea
  • Spotted fever

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

WHO therapeutic group
Antiinfectives and antiseptics for local oral treatment; Antiinfectives for treatment of acne; Tetracyclines
Anti-infective classification
Classified as an existing antimicrobial.WHO ATC D10AF07; WHO ATC J01AA08

Repurposing investigation

Minocycline Hydrochloride 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
  • MRSA89.8% 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.
  • E. coli89.7% 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.
  • K. pneumoniae98.8% 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. tuberculosis80.3% 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.

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 4 of 4 lab records
  • E. coli: measured active in 3 of 3 lab records
  • K. pneumoniae: measured active in 14 of 17 lab records
  • M. tuberculosis: measured active in 2 of 2 lab records
Show the 26 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)

-7.3 kcal/mol

0better fit →-12

KPC-2 carbapenemase ↗ (K. pneumoniae)

-8.2 kcal/mol

0better fit →-12

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

-8.0 kcal/mol

0better fit →-12

Dihydrofolate reductase ↗ (MRSA)

-7.5 kcal/mol

0better fit →-12

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 Minocycline Hydrochloride 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.

  • Study Comparing Acne in Patients Taking Oral Minocycline to Patients Taking Minocycline Plus Topical Tretinoin

    NCT00240513 · start 2004-08

    Registered record
    Registry ID
    NCT00240513
    Conditions
    Acne Vulgaris
    Interventions
    Minocycline; Minocycline plus tretinoin
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Terminated
    Start
    2004-08
    Completion
    2006-12
    Enrolment
    38

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

    ConditionAcne Vulgaris
    InterventionMinocycline; Minocycline plus tretinoin
    PhasePhase 4
    Registry statusTerminated
  • Tetracycline-Derivatives for Treatment of Cerebral Arteriovenous Malformations and Aneurysms

    NCT00243893 · start 2004-07

    Registered record
    Registry ID
    NCT00243893
    Conditions
    Aneurysms; Arteriovenous Malformations
    Interventions
    minocycline; doxycycline
    Study type
    INTERVENTIONAL
    Phase
    Phase 1
    Registry status
    Completed
    Start
    2004-07
    Completion
    2008-10
    Enrolment
    26

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

    ConditionAneurysms; Arteriovenous Malformations
    Interventionminocycline; doxycycline
    PhasePhase 1
    Registry statusCompleted
  • Minocycline to Treat Amyotrophic Lateral Sclerosis

    NCT00047723 · start 2003-01

    Registered record
    Registry ID
    NCT00047723
    Conditions
    Amyotrophic Lateral Sclerosis
    Interventions
    minocycline
    Study type
    INTERVENTIONAL
    Phase
    Phase 3
    Registry status
    Completed
    Start
    2003-01
    Completion
    2007-01
    Enrolment
    400

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

    ConditionAmyotrophic Lateral Sclerosis
    Interventionminocycline
    PhasePhase 3
    Registry statusCompleted
  • Comparison of Tazarotene and Minocycline Therapies for Maintenance of Facial Acne Vulgaris

    NCT00145106 · start 2002-03

    Registered record
    Registry ID
    NCT00145106
    Conditions
    Acne Vulgaris
    Interventions
    Tazarotene 0.1% gel + placebo capsule, Oral minocycline (100 mg capsule) + vehicle gel, Tazarotene 0.1% gel + oral minocycline (100 mg capsule)
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Completed
    Start
    2002-03
    Completion
    2002-08
    Enrolment
    189

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

    ConditionAcne Vulgaris
    InterventionTazarotene 0.1% gel + placebo capsule, Oral minocycline (100 mg capsule) + vehicle gel, Tazarotene 0.1% gel + oral minocycline (100 mg capsule)
    PhasePhase 4
    Registry statusCompleted
  • Minocycline Therapy for Lung Scarring in Patients With Idiopathic Pulmonary Fibrosis - a Pilot Study

    NCT00203697

    Registered record
    Registry ID
    NCT00203697
    Conditions
    Idiopathic Pulmonary Fibrosis
    Interventions
    minocycline
    Study type
    INTERVENTIONAL
    Phase
    Phase 3
    Registry status
    Unknown
    Start
    Not recorded
    Completion
    Not recorded
    Enrolment
    Not recorded

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

    ConditionIdiopathic Pulmonary Fibrosis
    Interventionminocycline
    PhasePhase 3
    Registry statusUnknown