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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.

  • Open Study Assessing the Feasibility of Minocycline in Patients With Unipolar Depression

    NCT01574742 · start 2012-06

    Registered record
    Registry ID
    NCT01574742
    Conditions
    Unipolar Depression
    Interventions
    Minocycline
    Study type
    INTERVENTIONAL
    Phase
    Phase 1
    Registry status
    Unknown
    Start
    2012-06
    Completion
    2014-06
    Enrolment
    30

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

    ConditionUnipolar Depression
    InterventionMinocycline
    PhasePhase 1
    Registry statusUnknown
  • Novel Medication Strategies Targeting Brain Mechanisms in Pediatric OCD

    NCT01695291 · start 2012-05

    Registered record
    Registry ID
    NCT01695291
    Conditions
    Obsessive Compulsive Disorder
    Interventions
    Minocycline; Placebo
    Study type
    INTERVENTIONAL
    Phase
    Phase 2
    Registry status
    Completed
    Start
    2012-05
    Completion
    2018-05
    Enrolment
    31

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

    ConditionObsessive Compulsive Disorder
    InterventionMinocycline; Placebo
    PhasePhase 2
    Registry statusCompleted
  • Minocycline Augmentation in Schizophrenia

    NCT01561742 · start 2012-02

    Registered record
    Registry ID
    NCT01561742
    Conditions
    Schizophrenia
    Interventions
    Minocycline; Placebo
    Study type
    INTERVENTIONAL
    Phase
    Not applicable
    Registry status
    Unknown
    Start
    2012-02
    Completion
    2015-01
    Enrolment
    120

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

    ConditionSchizophrenia
    InterventionMinocycline; Placebo
    PhaseNot applicable
    Registry statusUnknown
  • Effect of Minocycline on Pain Caused by Nerve Damage

    NCT01869907 · start 2011-09

    Registered record
    Registry ID
    NCT01869907
    Conditions
    Neuropathic Pain Caused by Lumbar Radicular Pain
    Interventions
    Minocycline; placebo; Amitriptyline
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Completed
    Start
    2011-09
    Completion
    2014-08
    Enrolment
    60

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

    ConditionNeuropathic Pain Caused by Lumbar Radicular Pain
    InterventionMinocycline; placebo; Amitriptyline
    PhasePhase 4
    Registry statusCompleted
  • Bioequivalence Minocycline Bioequivalence

    NCT01755611 · start 2011-06-17

    Registered record
    Registry ID
    NCT01755611
    Conditions
    Skin Infections (Acne)
    Interventions
    Minocycline 100mg; Minocycline 100mg
    Study type
    INTERVENTIONAL
    Phase
    Phase 1
    Registry status
    Completed
    Start
    2011-06-17
    Completion
    2011-06-25
    Enrolment
    25

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

    ConditionSkin Infections (Acne)
    InterventionMinocycline 100mg; Minocycline 100mg
    PhasePhase 1
    Registry statusCompleted
  • Efficacy of Oral Minocycline (Solodyn) and Oral Minocycline (Solodyn) Plus Azelaic Acid (Finacea) for Acne Rosacea

    NCT05014906 · start 2010-05

    Registered record
    Registry ID
    NCT05014906
    Conditions
    Rosacea
    Interventions
    Minocycline 45 MG; Azelaic acid
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Completed
    Start
    2010-05
    Completion
    2011-09
    Enrolment
    60

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

    ConditionRosacea
    InterventionMinocycline 45 MG; Azelaic acid
    PhasePhase 4
    Registry statusCompleted
  • Trial of Minocycline to Treat Children With Fragile X Syndrome

    NCT01053156 · start 2010-01

    Registered record
    Registry ID
    NCT01053156
    Conditions
    Fragile X Syndrome
    Interventions
    minocycline hydrochloride; Placebo
    Study type
    INTERVENTIONAL
    Phase
    Not applicable
    Registry status
    Completed
    Start
    2010-01
    Completion
    2011-12
    Enrolment
    66

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

    ConditionFragile X Syndrome
    Interventionminocycline hydrochloride; Placebo
    PhaseNot applicable
    Registry statusCompleted
  • Minocycline as Neuroprotectant After Aneurysmal Subarachnoid Hemorrhage

    NCT02113176 · start 2010-01

    Registered record
    Registry ID
    NCT02113176
    Conditions
    Subarachnoid Aneurysm Hemorrhage
    Interventions
    Minocycline
    Study type
    INTERVENTIONAL
    Phase
    Phase 1 / Phase 2
    Registry status
    Withdrawn
    Start
    2010-01
    Completion
    2018-12
    Enrolment
    0

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

    ConditionSubarachnoid Aneurysm Hemorrhage
    InterventionMinocycline
    PhasePhase 1 / Phase 2
    Registry statusWithdrawn
  • Safety and Efficacy Comparison of Minocycline Microgranules Versus Lymecycline in the Treatment of Mild to Moderate Acne

    NCT00988026 · start 2009-06

    Registered record
    Registry ID
    NCT00988026
    Conditions
    Mild to Moderate Acne
    Interventions
    Minocycline vs Lymecycline
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Unknown
    Start
    2009-06
    Completion
    2010-04
    Enrolment
    168

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

    ConditionMild to Moderate Acne
    InterventionMinocycline vs Lymecycline
    PhasePhase 4
    Registry statusUnknown
  • Granuloma Annulare Treated With Rifampin, Ofloxacin, and Minocycline Combination Therapy

    NCT00720980 · start 2008-05

    Registered record
    Registry ID
    NCT00720980
    Conditions
    Granuloma Annulare
    Interventions
    Not recorded
    Study type
    OBSERVATIONAL
    Phase
    Not recorded
    Registry status
    Completed
    Start
    2008-05
    Completion
    2008-07
    Enrolment
    6

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

    ConditionGranuloma Annulare
    InterventionNot recorded
    PhaseNot recorded
    Registry statusCompleted
  • Long-term Safety of Minocycline in Patients With Gum Disease

    NCT00668746 · start 2007-12

    Registered record
    Registry ID
    NCT00668746
    Conditions
    Periodontitis
    Interventions
    Minocycline HCl microspheres
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Completed
    Start
    2007-12
    Completion
    2009-02
    Enrolment
    35

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

    ConditionPeriodontitis
    InterventionMinocycline HCl microspheres
    PhasePhase 4
    Registry statusCompleted
  • Intrapleural Minocycline After Aspiration of Spontaneous Pneumothorax

    NCT00839553 · start 2007-04

    Registered record
    Registry ID
    NCT00839553
    Conditions
    Pneumothorax
    Interventions
    Intrapleural Minocycline application
    Study type
    INTERVENTIONAL
    Phase
    Not applicable
    Registry status
    Unknown
    Start
    2007-04
    Completion
    2009-04
    Enrolment
    100

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

    ConditionPneumothorax
    InterventionIntrapleural Minocycline application
    PhaseNot applicable
    Registry statusUnknown
  • Minocycline for the Treatment of Decreased Mental Function in HIV-Infected Adults

    NCT00361257 · start 2007-03

    Registered record
    Registry ID
    NCT00361257
    Conditions
    HIV Infections
    Interventions
    Minocycline; Placebo (Tetracycline)
    Study type
    INTERVENTIONAL
    Phase
    Phase 2
    Registry status
    Terminated
    Start
    2007-03
    Completion
    2010-01
    Enrolment
    107

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

    ConditionHIV Infections
    InterventionMinocycline; Placebo (Tetracycline)
    PhasePhase 2
    Registry statusTerminated
  • A Prospective Trial of Nasal Mupirocin, Hexachlorophene Body Wash, and Systemic Antibiotics for Prevention of Recurrent Methicillin Resistant Staphylococcus Aureus Infections

    NCT01049438 · start 2006-08

    Registered record
    Registry ID
    NCT01049438
    Conditions
    Methicillin Resistant Staphylococcus Aureus Skin Infections
    Interventions
    nasal mupirocin; topical 3% hexachlorophene body wash; oral anti-MRSA antibiotic
    Study type
    INTERVENTIONAL
    Phase
    Not applicable
    Registry status
    Completed
    Start
    2006-08
    Completion
    2009-09
    Enrolment
    31

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

    ConditionMethicillin Resistant Staphylococcus Aureus Skin Infections
    Interventionnasal mupirocin; topical 3% hexachlorophene body wash; oral anti-MRSA antibiotic
    PhaseNot applicable
    Registry statusCompleted
  • Combination Therapy Selection Trial in Amyotrophic Lateral Sclerosis

    NCT00355576 · start 2006-07

    Registered record
    Registry ID
    NCT00355576
    Conditions
    Amyotrophic Lateral Sclerosis
    Interventions
    Celecoxib; Creatine; Minocycline
    Study type
    INTERVENTIONAL
    Phase
    Phase 2
    Registry status
    Completed
    Start
    2006-07
    Completion
    2007-05
    Enrolment
    86

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

    ConditionAmyotrophic Lateral Sclerosis
    InterventionCelecoxib; Creatine; Minocycline
    PhasePhase 2
    Registry statusCompleted