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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.

  • Evaluating the Role of Neuroinflammation in Low Back Pain

    NCT03106740 · start 2017-10-10

    Registered record
    Registry ID
    NCT03106740
    Conditions
    Low Back Pain; Back Pain With Radiation; Back Pain Without Radiation; Back Pain Lower Back Chronic; Back Ache; Pain, Chronic
    Interventions
    Minocycline Hydrochloride 100mg Capsule; Magnetic Resonance-Positron Emission Tomography Imaging; Placebo Capsule
    Study type
    INTERVENTIONAL
    Phase
    Phase 2
    Registry status
    Completed
    Start
    2017-10-10
    Completion
    2024-04-30
    Enrolment
    60

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

    ConditionLow Back Pain; Back Pain With Radiation; Back Pain Without Radiation; Back Pain Lower Back Chronic +2 more
    InterventionMinocycline Hydrochloride 100mg Capsule; Magnetic Resonance-Positron Emission Tomography Imaging; Placebo Capsule
    PhasePhase 2
    Registry statusCompleted
  • A Controlled Study to Assess the Efficacy, Safety and Tolerability of Oral DFD-29 Extended Release Capsules

    NCT03340961 · start 2017-10-01

    Registered record
    Registry ID
    NCT03340961
    Conditions
    Rosacea
    Interventions
    DFD-29 Extended Release Capsules (40 mg); DFD-29 Extended Release Capsules (20 mg); Oraycea® (doxycycline) Capsules; Placebo Capsules
    Study type
    INTERVENTIONAL
    Phase
    Phase 2
    Registry status
    Completed
    Start
    2017-10-01
    Completion
    2019-03-31
    Enrolment
    205

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

    ConditionRosacea
    InterventionDFD-29 Extended Release Capsules (40 mg); DFD-29 Extended Release Capsules (20 mg); Oraycea® (doxycycline) Capsules; Placebo Capsules
    PhasePhase 2
    Registry statusCompleted
  • Measuring Brain Inflammation in Autism

    NCT03117530 · start 2017-04-11

    Registered record
    Registry ID
    NCT03117530
    Conditions
    Autism Spectrum Disorder
    Interventions
    Minocycline
    Study type
    INTERVENTIONAL
    Phase
    Phase 1
    Registry status
    Suspended
    Start
    2017-04-11
    Completion
    2022-12
    Enrolment
    30

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

    ConditionAutism Spectrum Disorder
    InterventionMinocycline
    PhasePhase 1
    Registry statusSuspended
  • Minocycline and Tobacco Craving in Smokers With Schizophrenia

    NCT02968602 · start 2017-03-31

    Registered record
    Registry ID
    NCT02968602
    Conditions
    Schizophrenia; Tobacco Use
    Interventions
    Minocycline; Placebo
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Completed
    Start
    2017-03-31
    Completion
    2019-07-23
    Enrolment
    32

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

    ConditionSchizophrenia; Tobacco Use
    InterventionMinocycline; Placebo
    PhasePhase 4
    Registry statusCompleted
  • Evaluation of Oral Minocycline in the Treatment of Geographic Atrophy Associated With Age-Related Macular Degeneration

    NCT02564978 · start 2016-12-14

    Registered record
    Registry ID
    NCT02564978
    Conditions
    Age-Related Macular Degeneration
    Interventions
    Minocycline
    Study type
    INTERVENTIONAL
    Phase
    Phase 2
    Registry status
    Completed
    Start
    2016-12-14
    Completion
    2023-03-08
    Enrolment
    37

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

    ConditionAge-Related Macular Degeneration
    InterventionMinocycline
    PhasePhase 2
    Registry statusCompleted
  • A Proof-of-concept Clinical Trial Assessing the Safety of the Coordinated Undermining of Survival Paths by 9 Repurposed Drugs Combined With Metronomic Temozolomide (CUSP9v3 Treatment Protocol) for Recurrent Glioblastoma

    NCT02770378 · start 2016-11

    Registered record
    Registry ID
    NCT02770378
    Conditions
    Glioblastoma
    Interventions
    Temozolomide; Aprepitant; Minocycline; Disulfiram; Celecoxib; Sertraline; Captopril; Itraconazole; Ritonavir; Auranofin
    Study type
    INTERVENTIONAL
    Phase
    Phase 1 / Phase 2
    Registry status
    Completed
    Start
    2016-11
    Completion
    2020-12
    Enrolment
    10

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

    ConditionGlioblastoma
    InterventionTemozolomide; Aprepitant; Minocycline; Disulfiram +6 more
    PhasePhase 1 / Phase 2
    Registry statusCompleted
  • Local Minocycline in Patients Under Supportive Periodontal Therapy

    NCT04036890 · start 2016-06-03

    Registered record
    Registry ID
    NCT04036890
    Conditions
    Periodontitis
    Interventions
    2% minocycline hydrochloride controlled-delivery system (MHS); Placebos
    Study type
    INTERVENTIONAL
    Phase
    Phase 4
    Registry status
    Completed
    Start
    2016-06-03
    Completion
    2019-10-18
    Enrolment
    68

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

    ConditionPeriodontitis
    Intervention2% minocycline hydrochloride controlled-delivery system (MHS); Placebos
    PhasePhase 4
    Registry statusCompleted
  • A Study to Compare the Efficacy and Safety of Topical Administration of FMX-101 for Treatment of Moderate-to-Severe Acne

    NCT02815280 · start 2016-05

    Registered record
    Registry ID
    NCT02815280
    Conditions
    Acne Vulgaris
    Interventions
    FMX-101, 4% minocycline foam; Vehicle Foam
    Study type
    INTERVENTIONAL
    Phase
    Phase 3
    Registry status
    Completed
    Start
    2016-05
    Completion
    2017-10-13
    Enrolment
    495

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

    ConditionAcne Vulgaris
    InterventionFMX-101, 4% minocycline foam; Vehicle Foam
    PhasePhase 3
    Registry statusCompleted
  • A Pharmacokinetic Study of Minocycline in Male and Female Volunteers

    NCT02250859 · start 2014-09

    Registered record
    Registry ID
    NCT02250859
    Conditions
    Acne
    Interventions
    FMX101, Minocycline 4% foam
    Study type
    INTERVENTIONAL
    Phase
    Phase 1
    Registry status
    Completed
    Start
    2014-09
    Completion
    2015-01
    Enrolment
    12

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

    ConditionAcne
    InterventionFMX101, Minocycline 4% foam
    PhasePhase 1
    Registry statusCompleted
  • The Effect of Nebulization of Alkaline Solution on Treating XDRAB Pneumonia With C/S Plus Minocycline

    NCT02060149 · start 2014-03

    Registered record
    Registry ID
    NCT02060149
    Conditions
    Pneumonia
    Interventions
    C/S plus minocycline.; nebulization with pH 7.4 solution; nebulization with pH 7.8 solution; No nebulization
    Study type
    INTERVENTIONAL
    Phase
    Phase 1 / Phase 2
    Registry status
    Unknown
    Start
    2014-03
    Completion
    2015-04
    Enrolment
    90

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

    ConditionPneumonia
    InterventionC/S plus minocycline.; nebulization with pH 7.4 solution; nebulization with pH 7.8 solution; No nebulization
    PhasePhase 1 / Phase 2
    Registry statusUnknown
  • The Effects of Antibiotic Combinations on Stem Cells

    NCT04713436 · start 2014-01-01

    Registered record
    Registry ID
    NCT04713436
    Conditions
    Stem Cells; Anti-Bacterial Agents
    Interventions
    Differentiation Markers
    Study type
    OBSERVATIONAL
    Phase
    Not recorded
    Registry status
    Completed
    Start
    2014-01-01
    Completion
    2017-02-01
    Enrolment
    3

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

    ConditionStem Cells; Anti-Bacterial Agents
    InterventionDifferentiation Markers
    PhaseNot recorded
    Registry statusCompleted
  • Use of Minocycline in Intracerebral Hemorrhage

    NCT03040128 · start 2013-06-27

    Registered record
    Registry ID
    NCT03040128
    Conditions
    Intracerebral Hemorrhage
    Interventions
    Minocycline; normal saline infusion
    Study type
    INTERVENTIONAL
    Phase
    Phase 1 / Phase 2
    Registry status
    Completed
    Start
    2013-06-27
    Completion
    2016-11-30
    Enrolment
    20

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

    ConditionIntracerebral Hemorrhage
    InterventionMinocycline; normal saline infusion
    PhasePhase 1 / Phase 2
    Registry statusCompleted
  • The Effect of Minocycline on Relapse After Successful Intravenous Ketamine/Minocycline-induced Symptoms Response in Subjects With Depression

    NCT01809340 · start 2013-06

    Registered record
    Registry ID
    NCT01809340
    Conditions
    Depressive Disorder
    Interventions
    Minocycline; Placebo; Ketamine
    Study type
    INTERVENTIONAL
    Phase
    Phase 2
    Registry status
    Terminated
    Start
    2013-06
    Completion
    2014-07
    Enrolment
    29

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

    ConditionDepressive Disorder
    InterventionMinocycline; Placebo; Ketamine
    PhasePhase 2
    Registry statusTerminated
  • Minocycline in Acute Spinal Cord Injury (MASC)

    NCT01828203 · start 2013-06

    Registered record
    Registry ID
    NCT01828203
    Conditions
    Spinal Cord Injuries
    Interventions
    Minocycline; Placebo; Surgical spinal cord decompression; Maintenance of minimum mean arterial pressure (MAP)
    Study type
    INTERVENTIONAL
    Phase
    Phase 3
    Registry status
    Unknown
    Start
    2013-06
    Completion
    2018-06
    Enrolment
    248

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

    ConditionSpinal Cord Injuries
    InterventionMinocycline; Placebo; Surgical spinal cord decompression; Maintenance of minimum mean arterial pressure (MAP)
    PhasePhase 3
    Registry statusUnknown
  • Repeat Radiation, Minocycline and Bevacizumab in Patients With Recurrent Glioma

    NCT01580969 · start 2012-07-06

    Registered record
    Registry ID
    NCT01580969
    Conditions
    Recurrent Glioma
    Interventions
    Bevacizumab; Minocycline; Radiation
    Study type
    INTERVENTIONAL
    Phase
    Phase 1 / Phase 2
    Registry status
    Completed
    Start
    2012-07-06
    Completion
    2018-05-15
    Enrolment
    22

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

    ConditionRecurrent Glioma
    InterventionBevacizumab; Minocycline; Radiation
    PhasePhase 1 / Phase 2
    Registry statusCompleted