Clinical Trials

Numerous clinical trials, spanning Phase 1 through Phase 4 with recruitment statuses ranging from active to completed or withdrawn, evaluate isoniazid for preventing and treating tuberculosis. These studies focus on latent infections, pulmonary disease, HIV co-infections in pediatric and adult populations, and preventative regimens in vulnerable groups like kidney transplant recipients. Sponsored by academic institutions, hospital networks, and national research organizations such as Asan Medical Center and the French National Agency for Research on AIDS and Viral Hepatitis, evaluations encompass pharmacokinetics and targeted prophylaxis.

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT03785106 ACTIVE_NOT_RECRUITING
HIV-infected Participants With Latent TB Infection in High TB Burden Country
The HIV Netherlands Australia Thailand Research Collaboration
2019-08-15 PHASE3
NCT07656012 NOT_YET_RECRUITING
Tuberculosis
University of Wisconsin, Madison
2026-09 PHASE2
NCT07076225 NOT_YET_RECRUITING
Pulmonary Tuberculosis
Shenzhen Third People's Hospital
2025-07-25 PHASE3
NCT03474029 RECRUITING
Latent Tuberculosis
Centers for Disease Control and Prevention
2019-08-01 PHASE2; PHASE3
NCT07595042 NOT_YET_RECRUITING
Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
2026-10-30 PHASE2
NCT06526221 ENROLLING_BY_INVITATION
Tuberculosis, Pulmonary; Medication Adherence
Tufts University
2026-04-07
NCT06905522 RECRUITING
Pulmonary Tuberculosis
Shenzhen Third People's Hospital
2025-06-18 PHASE3
NCT06526039 NOT_YET_RECRUITING
Tuberculosis, Pulmonary
Taipei Medical University WanFang Hospital
2024-07 PHASE3
NCT07163143 NOT_YET_RECRUITING
Tuberculosis (TB)
University College, London
2025-11 PHASE3
NCT07086820 RECRUITING
Tuberculosis Infection; Household Contacts; Children; Adolescent; Tuberculosis Infection, Latent; Tuberculosis
Pontificia Universidad Catolica de Chile
2025-10-27
NCT05383742 RECRUITING
Tuberculous Meningitis
National Institute of Allergy and Infectious Diseases (NIAID)
2023-12-07 PHASE2
NCT07124559 NOT_YET_RECRUITING
Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
2026-10-15 PHASE1; PHASE2
NCT06917495 NOT_YET_RECRUITING
Mild Spinal Tuberculosis
Shandong University
2025-04-05 PHASE2
NCT07773610 NOT_YET_RECRUITING
Tuberculosis, Pulmonary
TASK Applied Science
2026-07-23 PHASE2
NCT07467252 NOT_YET_RECRUITING
Pulmonary Tuberculosis
Ministry of Health, Saudi Arabia
2026-09 PHASE2
NCT05807399 RECRUITING
Pulmonary Tuberculosis; Other Specified Pulmonary Tuberculosis
Michael Hoelscher
2023-04-14 PHASE2
NCT06253715 RECRUITING
Tuberculosis; Tuberculosis, Pulmonary; Tuberculosis, Lymph Node; Mycobacterium Tuberculosis
Johns Hopkins University
2025-01-15 PHASE3
NCT05917340 NOT_YET_RECRUITING
Tuberculous Meningitis
Indian Council of Medical Research
2024-03 PHASE3
NCT06568484 RECRUITING
Tuberculosis, Latent
Johns Hopkins University
2026-05-08 PHASE2; PHASE3
NCT07303699 RECRUITING
Pulmonary Tuberculosis (TB)
Obafemi Awolowo University Teaching Hospital
2026-01-03 PHASE2
NCT06114628 RECRUITING
Pulmonary Tuberculosis
University College, London
2024-01-09 PHASE2
NCT06281834 RECRUITING
Pediatric HIV Infection; Latent Tuberculosis
Brigham and Women's Hospital
2024-11-15 PHASE1
NCT03568383 ACTIVE_NOT_RECRUITING
Tuberculosis, MDR
National Institute of Allergy and Infectious Diseases (NIAID)
2019-06-03 PHASE3
NCT07129629 NOT_YET_RECRUITING
Tuberculosis, Pulmonary; Drug-Susceptible Pulmonary Tuberculosis
Shanghai Pulmonary Hospital, Shanghai, China
2025-08-20 PHASE2
NCT05766267 ACTIVE_NOT_RECRUITING
Tuberculosis, Pulmonary; Tuberculosis Infection
Centers for Disease Control and Prevention
2023-11-21 PHASE2; PHASE3
NCT06191692 NOT_YET_RECRUITING
Tuberculosis Infection
Freundeskreis Für Internationale Tuberkulosehilfe e.V
2025-08-01 PHASE3
NCT06192160 RECRUITING
Pulmonary Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
2025-03-11 PHASE2
NCT07069582 NOT_YET_RECRUITING
Tuberculosis Infection; Healthy Volunteer; Breastfeeding
McGill University Health Centre/Research Institute of the McGill University Health Centre
2026-04-01 PHASE1
NCT07073638 RECRUITING
Pulmonary Tuberculoses
Thirty Respiratory Limited
2025-10-13 PHASE2
NCT06022146 RECRUITING
Tuberculosis; Latent Tuberculosis
Huashan Hospital
2023-09-01 PHASE3
NCT05994742 COMPLETED
Severe Acute Malnutrition; HIV; Comorbidities and Coexisting Conditions; Child Malnutrition
Queen Mary University of London
2024-07-15 PHASE3
NCT07708779 RECRUITING
Tuberculosis
University Medical Center Groningen
2025-12-01 PHASE1
NCT06748937 RECRUITING
Tuberculosis
TASK Applied Science
2025-03-03 PHASE2
NCT06199921 RECRUITING
Pulmonary Tuberculosis; Tuberculosis; Koch's Disease
Obafemi Awolowo University Teaching Hospital
2024-01-03 PHASE2
NCT05411744 ACTIVE_NOT_RECRUITING
Latent Tuberculosis; End Stage Renal Disease; Renal Transplant Candidate for Right Kidney; Renal Transplant Candidate for Left Kidney
Rutgers, The State University of New Jersey
2022-07-01 PHASE4
NCT04951986 ACTIVE_NOT_RECRUITING
Disseminated Tuberculosis; HIV
University of Cape Town
2021-08-11 PHASE3
NCT06618573 RECRUITING
Tuberculosis; Systemic Lupus Erythematosus
Universitas Padjadjaran
2022-08-15 PHASE2; PHASE3
NCT07058090 NOT_YET_RECRUITING
Drug Induced Liver Injury; Tuberculosis (TB)
Liaquat National Hospital & Medical College
2025-07 PHASE1
NCT04600167 UNKNOWN
Diabetes Mellitus; Tuberculosis
Dr. Nyanda Elias Ntinginya
2022-06-17 PHASE3
NCT05122026 ACTIVE_NOT_RECRUITING
HIV Seropositivity; Pregnancy; Tuberculosis Infection
The Aurum Institute NPC
2024-01-17 PHASE1; PHASE2
NCT04485156 NOT_YET_RECRUITING
Tuberculosis, Pulmonary
Seoul National University Hospital
2020-09 PHASE3
NCT05118490 ACTIVE_NOT_RECRUITING
HIV Seropositivity; Tuberculosis; Household Contact
The Aurum Institute NPC
2023-07-19 PHASE4
NCT05122767 ACTIVE_NOT_RECRUITING
Tuberculosis; HIV
The Aurum Institute NPC
2023-05-24 PHASE1; PHASE2
NCT05454345 UNKNOWN
Tuberculosis, Pulmonary
First Affiliated Hospital of Zhejiang University
2022-10-01 PHASE3
NCT05556746 ACTIVE_NOT_RECRUITING
Tuberculosis, Pulmonary; HIV
Brigham and Women's Hospital
2023-11-24 PHASE2
NCT06214910 COMPLETED
Tuberculosis; HIV I Infection
University of Washington
2024-02-20
NCT05021731 UNKNOWN
Latent Tuberculosis; Kidney Failure
Miguel Santín
2024-04-20 PHASE4
NCT04930744 COMPLETED
Tuberculosis; Pulmonary Tuberculosis; HIV Coinfection
University of Massachusetts, Worcester
2022-03-04 PHASE2
NCT05413551 COMPLETED
Tuberculosis Infection; Isoniazid Adverse Reaction
Stanford University
2023-03-23 PHASE1
NCT05971602 TERMINATED
Pulmonary Tuberculosis
Gates Medical Research Institute
2023-07-26 PHASE2
NCT03730181 COMPLETED
Latent Tuberculosis
Centers for Disease Control and Prevention
2019-11-12 PHASE1; PHASE2
NCT04311502 TERMINATED
HIV; Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
2021-11-05 PHASE2
NCT04703075 COMPLETED
Tuberculosis
Johns Hopkins University
2022-03-24 PHASE4
NCT06281834 Not yet recruiting
Pediatric HIV Infection|Latent Tuberculosis
Brigham and Women''s Hospital|APIN Public Health Initiatives|University of Cape Town
2024-05 Phase 1
NCT06874725 ACTIVE_NOT_RECRUITING
Latent Tuberculosis Infection
Taichung Veterans General Hospital
2018-04-18 PHASE4
NCT05473195 COMPLETED
Rifampicin- and Isoniazid-Susceptible Pulmonary Tuberculosis (TB)
TASK Applied Science
2022-12-06 PHASE2
NCT04062201 COMPLETED
Tuberculosis; Pre-XDR-TB; Extensively Drug-Resistant Tuberculosis; Multi Drug Resistant Tuberculosis; Rifampicin Resistant Tuberculosis
Wits Health Consortium (Pty) Ltd
2019-08-22 PHASE3
NCT05221502 COMPLETED
Pulmonary TB
Otsuka Pharmaceutical Development & Commercialization, Inc.
2022-04-12 PHASE2
NCT03089983 COMPLETED
Opioid Dependence; Addiction; HIV/AIDS; Tuberculosis; Hepatitis
Yale University
2017-08-21
NCT06512831 COMPLETED
Kidney Transplantation; Tuberculosis; Isoniazid Toxicity
West China Hospital
2023-06-01
NCT04856644 UNKNOWN
Tuberculosis, Pulmonary
Kaohsiung Veterans General Hospital.
2020-01-01 PHASE3
NCT03315962 COMPLETED
Tuberculosis; HIV/AIDS
University of California, San Francisco
2017-11-15
NCT04094012 COMPLETED
Latent Tuberculosis Infection
National Taiwan University Hospital
2019-09-24 PHASE3
NCT05655702 Recruiting
Tuberculosis
ANRS Emerging Infectious Diseases|Haiphong University of Medicine and Pharmacy|Expertise France|Université Montpellier|New York University|CENTER FOR SUPPORTING COMMUNITY DEVELOPMENT INITIATIVES
2023-10-02 Not Applicable
NCT05592223 COMPLETED
Tuberculosis
Fred Hutchinson Cancer Center
2022-12-06 PHASE1
NCT05249699 UNKNOWN
Kidney Transplant Infection; Tuberculosis; Isoniazid Toxicity
West China Hospital
2022-04-01
NCT04830462 COMPLETED
Latent Tuberculosis; Diabetes Mellitus, Type 2
Herlev and Gentofte Hospital
2021-04-15 PHASE4
NCT03266991 TERMINATED
Compliance, Patient
Aarhus University Hospital
2017-10-27 PHASE4
NCT04187469 UNKNOWN
Pulmonary Tuberculosis
Fifth Affiliated Hospital, Sun Yat-Sen University
2020-03-01
NCT03435146 COMPLETED
Respiratory Tract Infections; HIV Infections
The Aurum Institute NPC
2018-01-18 PHASE1; PHASE2
NCT03510468 COMPLETED
Healthy Volunteers
National Institutes of Health Clinical Center (CC)
2018-06-12 PHASE1
NCT03934931 COMPLETED
Tuberculosis; Latent Tuberculosis; HIV/AIDS
University of California, San Francisco
2020-07-13
NCT03891901 COMPLETED
Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
2020-10-27 PHASE2
NCT02409290 COMPLETED
MDR-TB
IUATLD, Inc
2016-03 PHASE3
NCT02256696 COMPLETED
Pulmonary Tuberculosis
Johns Hopkins University
2015-04-29 PHASE2
NCT05124678 UNKNOWN
Tuberculosis
Makerere University
2021-12-07 PHASE2
NCT03474198 COMPLETED
Tuberculosis, Pulmonary
University College, London
2018-03-21 PHASE2; PHASE3
NCT03900858 UNKNOWN
Silicosis Tuberculosis
Huashan Hospital
2018-12-01
NCT02581527 COMPLETED
Pulmonary Tuberculosis
St George's, University of London
2017-02-01 PHASE3
NCT03787940 UNKNOWN
Tuberculous Meningitis
Beijing Chest Hospital
2019-03-04
NCT04272242 TERMINATED
HIV Infection; LTBI
National Institute of Allergy and Infectious Diseases (NIAID)
2021-02-27 PHASE2
NCT02821832 COMPLETED
Pulmonary Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
2017-06-21 PHASE2
NCT01936831 COMPLETED
Tuberculosis
Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections
2014-08-13 PHASE2
NCT04528277 UNKNOWN
Infertility, Female; Recurrent Implantation Failure; Genital Tuberculoses, Female; Genital Tuberculosis, Latent
Huashan Hospital
2020-09-01 PHASE3
NCT02563327 COMPLETED
Tuberculosis
Centers for Disease Control and Prevention
2016-01-25 PHASE3
NCT02771249 COMPLETED
HIV Infected Population With Latent Tuberculosis
National Institutes of Health Clinical Center (CC)
2016-06-03 PHASE1
NCT03302299 COMPLETED
Tuberculosis; HIV/AIDS; Alcohol Abuse
University of California, San Francisco
2017-04-07 PHASE4
NCT04504851 UNKNOWN
Pulmonary Tuberculosis
National University Hospital, Singapore
2020-08-12 PHASE2
NCT02454205 COMPLETED
Tuberculosis; Multidrug Resistant Tuberculosis; Extensively-drug Resistant Tuberculosis
University of Cape Town
2015-11-12 PHASE2; PHASE3
NCT04424264 COMPLETED
HIV-1-infection; Tuberculosis
Professor Francois Venter
2019-12-05 PHASE1
NCT02236078 COMPLETED
Tuberculosis; Drug-resistant Tuberculosis; Isoniazid Resistant Tuberculosis (Disorder)
Centers for Disease Control and Prevention
2015-11 PHASE1
NCT02735590 UNKNOWN
Tuberculosis
University of Cape Town
2016-09-20 PHASE2; PHASE3
NCT02980016 COMPLETED
Tuberculosis; HIV
The Aurum Institute NPC
2016-11 PHASE3
NCT02613169 COMPLETED
Tuberculosis
University of Washington
2016-08 PHASE2
NCT03028129 TERMINATED
Tuberculosis, Pulmonary; Antibiotic Prophylaxis
Federal University of Mato Grosso
2017-09-04 PHASE4
NCT03886701 COMPLETED
Latent Tuberculosis; Human Immunodeficiency Virus; Rifamycins Causing Adverse Effects in Therapeutic Use; Drug Interaction Potentiation
Walter K. Kraft
2019-04-22 PHASE1
NCT02651259 COMPLETED
Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
2017-03-13 PHASE1; PHASE2
NCT03278483 COMPLETED
Diabetes Mellitus; Tuberculin (Skin Test) Positive
Instituto Nacional de Salud Publica, Mexico
2019-02-28 PHASE4
NCT02467608 COMPLETED
Pulmonary Tuberculosis
Orient Pharma Co., Ltd.
2012-12-06 PHASE2; PHASE3
NCT03665402 COMPLETED
Tuberculosis; Drug-Induced Liver Injury; Adverse Drug Event
Seoul National University Hospital
2018-05-13
NCT02901288 UNKNOWN
Tuberculosis, Pulmonary
Beijing Chest Hospital
2016-08 PHASE4
NCT02231229 COMPLETED
Tuberculosis
Assistance Publique - Hôpitaux de Paris
2014-07-23 PHASE4
NCT02430259 COMPLETED
Silicosis; Tuberculosis
Huashan Hospital
2015-03 PHASE3
NCT02057796 COMPLETED
HIV-1 Infection
ANRS, Emerging Infectious Diseases
2014-09 PHASE4
NCT02457208 COMPLETED
Tuberculosis
University of Oxford
2015-07-07 PHASE1
NCT02342886 COMPLETED
Tuberculosis, Pulmonary, Drug Sensitive; Tuberculosis, Pulmonary, Multi Drug-resistant
Global Alliance for TB Drug Development
2015-02 PHASE3
NCT02832778 UNKNOWN
HIV
St Stephens Aids Trust
2016-11-21 PHASE1
NCT02477852 UNKNOWN
Tuberculosis, Spinal
Beijing Chest Hospital
2015-04 PHASE4
NCT01404312 COMPLETED
Tuberculosis; HIV Infections
National Institute of Allergy and Infectious Diseases (NIAID)
2012-05-23 PHASE3
NCT03334734 TERMINATED
Tuberculosis
Nearmedic Plus LLC
2016-12-16 PHASE2
NCT01494038 COMPLETED
HIV Infections; Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
2014-08-19 PHASE4
NCT00931736 COMPLETED
Latent Tuberculosis Infection
McGill University
2009-08 PHASE3
NCT01601626 TERMINATED
HIV Infection; Tuberculosis
Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections
2013-07-13 PHASE2
NCT02208427 UNKNOWN
Latent Tuberculosis Infection
National Taiwan University Hospital
2014-08 PHASE3
NCT02279875 COMPLETED
Pulmonary Tuberculosis
Global Alliance for TB Drug Development
2014-11 PHASE2
NCT01782950 UNKNOWN
AIDS With Tuberculosis
Makerere University
2013-02 PHASE4
NCT01825031 COMPLETED
Human Immunodeficiency Virus
Anna Griffiths, MRC
2013-06 PHASE3
NCT02193776 COMPLETED
Tuberculosis
Global Alliance for TB Drug Development
2014-10-23 PHASE2
NCT01223534 COMPLETED
Latent Tuberculosis Infection
Hospital Universitari de Bellvitge
2010-07 PHASE4
NCT01926379 COMPLETED
HIV; Tuberculosis
Columbia University
2013-07
NCT01589497 COMPLETED
Tuberculosis
Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections
2015-06-30 PHASE2
NCT01154959 COMPLETED
Pulmonary Tuberculosis
Tuberculosis Research Centre, India
2010-02 PHASE3
NCT01550705 TERMINATED
Erythropoietic Protoporphyria (EPP); X Linked Erythropoietic Protoporphyria
University of Utah
2012-03
NCT02331823 UNKNOWN
Reinfection Pulmonary Tuberculosis
Shanghai Pulmonary Hospital, Shanghai, China
2013-06 PHASE4
NCT02076685 UNKNOWN
Hepatotoxicity
National Taiwan University Hospital
2007-11
NCT00728546 UNKNOWN
Tuberculosis; Hepatotoxicity
National Taiwan University Hospital
2008-06 PHASE4
NCT01838200 TERMINATED
Metastatic Melanoma
Ludwig Institute for Cancer Research
2014-03 PHASE1
NCT02554318 COMPLETED
Pulmonary Tuberculosis; Body Weight Changes; Motor Activity
University of Giessen
2013-11
NCT01380080 COMPLETED
HIV Infection
Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections
2011-10 PHASE4
NCT00495651 COMPLETED
HIV Infections; Tuberculosis
French National Agency for Research on AIDS and Viral Hepatitis
2008-03 PHASE3
NCT00170209 COMPLETED
Latent Tuberculosis Infection
McGill University
2011-08 PHASE3
NCT01582711 COMPLETED
Latent Tuberculosis Infection
Centers for Disease Control and Prevention
2012-09 PHASE3
NCT01785186 COMPLETED
Tuberculosis, Pulmonary
Michael Hoelscher
2013-04 PHASE2
NCT00816426 COMPLETED
Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
2008-12-29 PHASE1
NCT02121314 COMPLETED
Tuberculosis
University Medical Center Groningen
2013-07 PHASE2
NCT01761201 TERMINATED
Latent Tuberculosis Infection; Infection in Solid Organ Transplant Recipients
Fundación Pública Andaluza para la gestión de la Investigación en Sevilla
2012-01 PHASE3
NCT01516203 COMPLETED
Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
2012-12-05 PHASE2
NCT01398618 UNKNOWN
Latent Tuberculosis Infection
National Taiwan University Hospital
2011-05 PHASE3
NCT01395654 UNKNOWN
Hepatitis; Tuberculosis, Pulmonary
National Taiwan University Hospital
2011-07 PHASE4
NCT00864383 COMPLETED
Pulmonary Tuberculosis
Global Alliance for TB Drug Development
2008-01 PHASE3
NCT01119521 COMPLETED
Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
2010-10 PHASE1
NCT01087190 COMPLETED
Kidney Transplant Recipient
Asan Medical Center
2010-06
NCT00728507 TERMINATED
Tuberculosis
Johns Hopkins University
2009-11 PHASE2
NCT01245036 COMPLETED
Sarcoidosis; Tuberculosis
Post Graduate Institute of Medical Education and Research, Chandigarh
2009-01
NCT03498534 WITHDRAWN
Latent Tuberculosis; Diabetes Mellitus
Instituto Nacional de Salud Publica, Mexico
2012-09 PHASE4
NCT00850915 COMPLETED
Tuberculosis
KNCV Tuberculosis Foundation
2009-04 PHASE4
NCT02014272 COMPLETED
Healthy Volunteers
Pfizer
2012-09 PHASE1
NCT01875952 UNKNOWN
Human Immunodeficiency Virus (HIV); Tuberculosis (TB); Latent Tuberculosis Infection (LTI)
Instituto Nacional de Salud Publica, Mexico
2010-05 PHASE4
NCT00571753 TERMINATED
Pulmonary Tuberculosis
University of Cologne
2008-06 PHASE3
NCT00330304 COMPLETED
Tuberculosis
University of Cape Town
2003-01 PHASE3
NCT00463086 COMPLETED
Tuberculosis; Latent Tuberculosis Infection; HIV Infections
University of Cape Town
2007-11
NCT01399788 COMPLETED
Healthy Volunteers
Pfizer
2011-07 PHASE1
NCT01311505 COMPLETED
Tuberculosis
Pfizer
2011-04 PHASE1
NCT01136161 COMPLETED
Latent Tuberculosis Infection; Tuberculosis
Archivel Farma S.L.
2010-06 PHASE2
NCT00495326 COMPLETED
Tuberculosis; Aids; Hiv Infections
French National Agency for Research on AIDS and Viral Hepatitis
2007-12 PHASE2; PHASE3
NCT00767975 COMPLETED
Tuberculosis
National Taiwan University Hospital
2008-01 PHASE3
NCT00023452 COMPLETED
Tuberculosis
Centers for Disease Control and Prevention
2001-06 PHASE3
NCT00164281 COMPLETED
Tuberculosis; HIV Infections
Centers for Disease Control and Prevention
2004-11 PHASE4
NCT00080119 TERMINATED
HIV Infection; Tuberculosis; Pneumocystis Jiroveci Pneumonia
International Maternal Pediatric Adolescent AIDS Clinical Trials Group
2004-02 PHASE2; PHASE3
NCT00057122 COMPLETED
HIV Infections; Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
2002-09 PHASE3
NCT00130325 COMPLETED
Tuberculosis
Medical Research Council Unit, The Gambia
2004-10
NCT00128206 COMPLETED
Tuberculosis
University of California, San Francisco
2004-11 PHASE3
NCT02043314 COMPLETED
Tuberculosis
Oswaldo Cruz Foundation
2008-10 PHASE1
NCT00130247 COMPLETED
Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
2002-04-08 PHASE3
NCT04802928 WITHDRAWN
Arterial Leg Ulcer
Pharma 2100
2008-04 PHASE2
NCT00351702 COMPLETED
Human Immunodeficiency Virus; Tuberculosis
Tuberculosis Research Centre, India
2001-02 PHASE3
NCT00164450 COMPLETED
Tuberculosis
Centers for Disease Control and Prevention
2005-09
NCT00293228 COMPLETED
Tuberculosis
Instituto Nacional de Salud Publica, Mexico
2007-02 PHASE4
NCT00396084 COMPLETED
Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
2004-02-10 PHASE1; PHASE2
NCT00376012 UNKNOWN
Tuberculosis; Human Immunodeficiency Virus Infections
Tuberculosis Research Centre, India
2001-02 PHASE3
NCT00164463 COMPLETED
Tuberculosis
Centers for Disease Control and Prevention
2004-07 PHASE2
NCT00144417 COMPLETED
Tuberculosis
Centers for Disease Control and Prevention
2006-02 PHASE2
NCT00023374 COMPLETED
Tuberculosis
Centers for Disease Control and Prevention
2000-08
NCT00306319 COMPLETED
Tuberculosis
Radboud University Medical Center
2006-01 PHASE2
NCT00023413 COMPLETED
HIV Infections; Tuberculosis
Centers for Disease Control and Prevention
1999-11 PHASE2
NCT00000950 COMPLETED
HIV Infections; Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
NCT00140309 COMPLETED
Tuberculosis, Pulmonary
Centers for Disease Control and Prevention
2003-07 PHASE2
NCT00023335 COMPLETED
Pulmonary Tuberculosis
Centers for Disease Control and Prevention
1995-04 PHASE3
NCT00000959 COMPLETED
HIV Infections; Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
NCT00000636 COMPLETED
HIV Infections; Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
NCT00317330 COMPLETED
Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
2004-12 PHASE3
NCT00402454 COMPLETED
HIV Infections
Sociedad Andaluza de Enfermedades Infecciosas
1994-01 PHASE4
NCT00397709 TERMINATED
Tuberculosis
Hospital Virgen de la Luz
1996-03 PHASE4
NCT00000796 COMPLETED
HIV Infections; Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
NCT00298870 COMPLETED
Pulmonary Tuberculosis
Osaka University
2005-06 PHASE4
NCT00023348 COMPLETED
HIV Infections; Tuberculosis
Centers for Disease Control and Prevention
1999-07 PHASE2; PHASE3
NCT00004740 UNKNOWN
Tuberculosis
National Institute on Drug Abuse (NIDA)
1995-02
NCT00004736 COMPLETED
HIV Infections; Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
PHASE1
NCT00000638 COMPLETED
HIV Infections; Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
NCT00023387 COMPLETED
Tuberculosis
Centers for Disease Control and Prevention
2000-03
NCT00018083 UNKNOWN
Tuberculosis; HIV Infections
National Center for Research Resources (NCRR)
NCT00001033 COMPLETED
HIV Infections; Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
PHASE3
NCT00402610 COMPLETED
HIV Infections; Tuberculosis
Sociedad Andaluza de Enfermedades Infecciosas
1994-01 PHASE4
NCT00513396 COMPLETED
Tuberculosis, Multidrug-Resistant
GSVM Medical College
2004-01 PHASE2; PHASE3
NCT00322907 TERMINATED
Clinical Malaria
Center for Primary Care and Public Health (Unisante), University of Lausanne, Switzerland
2000-04 PHASE2
NCT00000778 COMPLETED
HIV Infections; Tuberculosis
National Institute of Allergy and Infectious Diseases (NIAID)
PHASE1

(data from https://clinicaltrials.gov, updated on 2025-03-17)

Check the Isoniazid product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Compliance for Clinical Use

Mechanism and Biochemical Profile

Isoniazid is a prodrug activated by mycobacterial KatG catalase-peroxidase to form a covalent adduct with NAD, which acts as a tight-binding competitive inhibitor of the enoyl reductase InhA and blocks downstream mycolic acid synthesis essential for bacterial cell wall integrity. This inhibition exerts bactericidal activity against actively growing Mycobacterium tuberculosis, directly accounting for its clinical efficacy in managing pulmonary tuberculosis and preventing latent tuberculosis in high-risk populations.

Appendix RUO and cGMP Quality Standards

Quality Dimension RUO (Research Use Only) cGMP (Current Good Manufacturing Practice)
Clinical Applicability Prohibited in human clinical trials or medical diagnostics. Mandatory for human clinical trials (Phase I–III) and therapies.
Regulatory Status Non-regulated grade; exempt from drug manufacturing laws. Legally enforced by health authorities (e.g., FDA, EMA, NMPA).
Facility Environment Unclassified analytical or research laboratories. Validated Cleanrooms (ISO Class 5–8) with continuous monitoring.
Quality Control Basic purity and activity testing. Rigorous safety release testing (Sterility, Endotoxin, Mycoplasma).
Process Validation Basic equipment calibration; no process validation required. Full qualification (IQ/OQ/PQ) and complete batch records.
Quality Assurance Vendor self-declared without required formal QMS. Mandatory QA/QC unit, Change Control, CAPA, and vendor audits.
Regulatory Impact High risk of IND rejection if used as a critical raw material. Required for IND/NDA filings, supported by Drug Master Files (DMF).

Footnotes

Regulatory Note: Governed by FDA (21 CFR Parts 210/211/312), EMA (EudraLex Vol 4), ICH Guidelines (E6/Q7/Q9/Q10), and compendial standards (USP <71>/<85>/<1043>).

Note: Technical data last updated: Sep 1, 2026.