Drug ID:Drug28
Drug Name:Metronidazole
CID:4173
DrugBank ID:DB00916
Modality:Small Molecule
Groups:approved
US Approved:YES
Other Approved:YES
Identifier: NCT03794765, , NCT04968951, , NCT02606032, , NCT04186247, , NCT00257699, , NCT00355602, , NCT04979832
Molecular Formula:C6H9N3O3
Molecular Weight:171.15 g/mol
Isomeric SMILES:CC1=NC=C(N1CCO)[N+](=O)[O-]
Synonyms:metronidazole; 443-48-1; Metronidazol; 2-Methyl-5-nitroimidazole-1-ethanol; Anagiardil; Deflamon; Orvagil; Novonidazol; Meronidal; Metronidaz
Phase 0: 15
Phase 1: 40
Phase 2: 103
Phase 3: 107
Phase 4: 206
Description:A nitroimidazole used to treat amebiasis; vaginitis; trichomonas infections; giardiasis; anaerobic bacteria; and treponemal infections. It has also been proposed as a radiation sensitizer for hypoxic cells. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985, p133), this substance may reasonably be anticipated to be a carcinogen (Merck, 11th ed).

Molecular Structure

2D Molecular Structure

Knowledge Graph

dtIDCIDCompound NameGene IDGene NameSpeciesPubMed IDsAction
dt258 4173 Metronidazole 706 TSPO Homo sapiens (human) None
dt259 4173 Metronidazole 3569 IL6 Homo sapiens (human) None
dt260 4173 Metronidazole 10864 SLC22A7 Mus musculus (house mouse) 36464106 [vancomycin co-treated with neomycin co-treated with ampicillin co-treated with metronidazole co-treated with amphotericin B] results in increased expression of SLC22A7 mRNA
dt261 4173 Metronidazole 6519 SLC3A1 Rattus norvegicus (Norway rat) 30545405 [ampicillin co-treated with neomycin co-treated with gentamicins co-treated with metronidazole co-treated with vancomycin] results in increased expression of SLC3A1 protein
dt262 4173 Metronidazole 123264 SLC51B Mus musculus (house mouse) 24657338 Metronidazole results in decreased expression of SLC51B mRNA
dt263 4173 Metronidazole 11309 SLCO2B1 Mus musculus (house mouse) 24657338 Metronidazole results in increased expression of SLCO2B1 mRNA
dt264 4173 Metronidazole 6610 SMPD2 Rattus norvegicus (Norway rat) 30545405 [ampicillin co-treated with neomycin co-treated with gentamicins co-treated with metronidazole co-treated with vancomycin] results in increased expression of SMPD2 protein
dt265 4173 Metronidazole 6713 SQLE Mus musculus (house mouse) 36464106 [vancomycin co-treated with neomycin co-treated with ampicillin co-treated with metronidazole co-treated with amphotericin B] results in increased expression of SQLE mRNA
dt266 4173 Metronidazole 8878 SQSTM1 Mus musculus (house mouse) 36535435 [vancomycin co-treated with neomycin co-treated with metronidazole] promotes the reaction [zinc oxide analog results in increased expression of SQSTM1 protein]
dt267 4173 Metronidazole 6720 SREBF1 Mus musculus (house mouse) 36464106 [sodium selenite results in increased abundance of selenium] inhibits the reaction [[vancomycin co-treated with neomycin co-treated with ampicillin co-treated with metronidazole co-treated with amphotericin B] results in increased expression of SREBF1 mrn

  • No data available

Phase Distribution
Phase Description
  • Phase 0: Exploratory trials to assess drug behavior in humans
  • Phase 1: Safety trials to determine safe dosage range
  • Phase 2: Efficacy trials to evaluate therapeutic effects
  • Phase 3: Large-scale trials to confirm efficacy and safety
  • Phase 4: Post-marketing surveillance for long-term safety and efficacy

Trial IDTitlePhaseStatusSponsorIndicationsInterventions
NCT04968951 Refined Fecal Microbiota Transplantation (FMT) for Ulcerative Colitis (UC) EARLY_PHASE1 TERMINATED Ari M Grinspan Ulcerative Colitis|FMT|Fecal Microbiota Transplant DRUG: Metronidazole|DRUG: Placebo|DRUG: Vancomyci… Details
NCT02606032 Trial of Antimicrobials Versus Placebo in Addition to Fecal Transplant Therapy in Ulcerative Colitis PHASE2 COMPLETED Hamilton Health Sciences Corporation Ulcerative Colitis DRUG: Metronidazole|DRUG: Doxycycline|DRUG: Terbi… Details
NCT04979832 GM-CSF, Fosfomycin and Metronidazole for Pouchitis in Ulcerative Colitis Patients After Restorative IPAA Surgery PHASE1|PHASE2 UNKNOWN Zealand University Hospital Pouchitis DRUG: GM-CSF, fosfomycin and metronidazole Details
NCT04186247 Personalized AZithromycin/metronidAZole Therapy in Pediatric Crohn's Disease (CD) PHASE2 COMPLETED University of North Carolina, Chapel Hill Crohn Disease|Pediatric Crohns Disease DRUG: Azithromycin|DRUG: Metronidazole|OTHER: Sta… Details
NCT00257699 Study of Antibiotics in the Treatment of Colonic Crohn's Disease PHASE2 TERMINATED Mount Sinai Hospital, Canada Crohn's Disease DRUG: Metronidazole placebo|DRUG: ciprofloxacin p… Details
NCT03042091 Neomycin and Metronidazole Hydrochloride With or Without Polyethylene Glycol in Reducing Infection in Patients Undergoing Elective Colorectal Surgery EARLY_PHASE1 UNKNOWN Thomas Jefferson University Colorectal Neoplasms; Diverticulitis; Inflammator… DRUG: Polyethylene Glycol; DRUG: Neomycin; DRUG: … Details
NCT03794765 Antibiotics as an Adjuvant in Patients With Acute Severe Ulcerative Colitis PHASE2 COMPLETED Post Graduate Institute of Medical Education and Research, Chandigarh Ulcerative Colitis|Inflammatory Bowel Diseases|Ac… DRUG: Ceftriaxone|DRUG: Metronidazole|OTHER: Plac… Details
JPRN-jRCTs031180415 Single center non-randomized study: A trial of a combination therapy of fecal microbial transplantation and antibiotics for inflammatory bowel disease Not Available Not Recruiting Ishikawa Dai Inflammatory Bowel Disease (Ulcerative Colitis, C… AFM therapy arm : three antibiotics, amoxicillin … Details
NCT03593252 Mechanical Bowel Prep and Prophylactic Oral Antibiotic Use in Children: Implications for Intestinal Surgery Complications Not Available Not recruiting McMaster University Colostomy Stoma;Ileostomy - Stoma;Jejunostomy Sto… Drug: Senna;Drug: Sodium Picosulfate, Magnesium O… Details
JPRN-UMIN000025846 A trial of a combination therapy of fecal microbial transplantation and antibiotics for inflammatory bowel disease - A trial of a combination therapy of fecal microbial transplantation and antibiotics for inflammatory bowel disease Not Available Recruiting Juntendo university school of medicine Department of gastroenterology ulcerative colitis, Crohn's disease Administration of the fecal material from healthy… Details
NCT03986996 Antimicrobial Therapy for Ulcerative Colitis (UC) PHASE2 TERMINATED Wolfson Medical Center Ulcerative Colitis DRUG: amoxicillin, metronidazole and doxycycline|… Details
NCT06583863 Parasitic Infections and Ulcerative Colitis: Combining Anti-parasitic and Immunomodulatory Treatments May Achieve Remission None COMPLETED Benha University Ulcerative Colitis DRUG: Echinacea Extract|DRUG: MetroNIDAZOLE 500 M… Details
NCT00355602 Antibiotics for the Treatment of Ulcerative Colitis None COMPLETED University of Dundee Colitis, Ulcerative DRUG: Cefuroxime|DRUG: Ciprofloxacin|DRUG: Clarit… Details

Disease IDDisease NameDefinitionCategoryRelated DrugsMechanism
No data available

Strategy IDTherapeutic StrategySynonymsRelated DrugsMechanism
No data available

The Comparative Effectiveness of Ciprofloxacin and Metronidazole for an Initial…

PMID: 37463438
Year: 2023
Relationship Type: Treatment Score: 10.0

INTRODUCTION: There is minimal evidence regarding the comparative effectiveness of individual antibiotics in the treatment of pouchitis. We sought to…

Activated Hepatic Nuclear Factor-κB in Experimental Colitis Regulates CYP2A5 an…

PMID: 36583631
Year: 2023
Relationship Type: Mechanism Score: 10.0

Systemic exposure of metronidazole is increased in patients with inflammatory bowel diseases (IBDs), while the underlying mechanism remains unknown. …

Metronidazole-Induced Encephalopathy in a 16-Year-Old Girl with Crohn's Disease…

PMID: 36138717
Year: 2022
Relationship Type: Treatment Score: 10.0

Metronidazole-induced encephalopathy (MIE) is a rare and unpredictable complication that is most commonly reported in adults. Here, we present the ca…

Reversible optic neuropathy secondary to metronidazole

PMID: 33334752
Year: 2020
Relationship Type: Treatment Score: 10.0

Metronidazole is a nitroimidazole antibiotic used in treating anaerobic bacteria and protozoal infections. It was first licensed for the treatment of…

[Non-severe Clostridioides difficile Infection: Are the data adequate to give u…

PMID: 32785914
Year: 2020
Relationship Type: Treatment Score: 10.0

Clostridioides difficile infections (CDI) are typical antibiotic therapy associated complications. Notwithstanding the fact that the clinical picture…

Low-Dose Metronidazole is Associated With a Decreased Rate of Endoscopic Recurr…

PMID: 30809655
Year: 2019
Relationship Type: Treatment Score: 10.0

BACKGROUND AND AIMS: Recurrence of Crohn's disease after surgical resection and primary anastomosis is an important clinical challenge. Previous stud…

Fecal Microbiota Transplantation in Recurrent NAP1/B1/027 Clostridium Difficile…

PMID: 30044904
Year: 2016
Relationship Type: Treatment Score: 10.0

Most of the studies showed that IBD patients inflammatory bowel diseases (IBD) with CDI have more of the whole range of short- and long-term worst ou…

Azithromycin and metronidazole versus metronidazole-based therapy for the induc…

PMID: 29420227
Year: 2019
Relationship Type: Treatment Score: 10.0

OBJECTIVE: Crohn's disease (CD) pathogenesis associated with dysbiosis and presence of pathobionts in the lumen, intracellular compartments and epith…

Development of Metronidazole-Loaded Colon-Targeted Microparticulate Drug Delive…

PMID: 26994887
Year: 2015
Relationship Type: Treatment Score: 10.0

BACKGROUND: Crohn's disease and ulcerative colitis are the main autoimmune inflammatory bowel diseases. Metronidazole is the most commonly used drug …

Use of topical metronidazole in the treatment of anorectal Crohn's disease

PMID: 24459783
Year: 2013
Relationship Type: Treatment Score: 10.0

Anorectal Crohn's disease is one of the most problematic and debilitating forms of Crohn's disease. Crohn's disease is a type of inflammatory bowel d…

Vulvoperineal Crohn's disease responsive to metronidazole

PMID: 24346884
Year: 2013
Relationship Type: Treatment Score: 10.0

Crohn's disease is a multisystem chronic granulomatous inflammatory disease that primarily affects the gastrointestinal tract. In the majority of the…

Addition of metronidazole to azathioprine for the prevention of postoperative r…

PMID: 23689809
Year: 2013
Relationship Type: Treatment Score: 10.0

BACKGROUND: Endoscopic recurrence occurs in up to 80% of patients with Crohn's disease 1 year after intestinal resection. Imidazole antibiotics, thio…

Combined azithromycin and metronidazole therapy is effective in inducing remiss…

PMID: 21575885
Year: 2011
Relationship Type: Treatment Score: 10.0

BACKGROUND: Crohn's disease (CD) is characterized by an aberrant response to the gut microbiota. We aimed to assess whether azithromycin based therap…

Vulvoperineal Crohn's disease: response to metronidazole

PMID: 21137614
Year: 2010
Relationship Type: Treatment Score: 10.0

A 46-year-old woman with a medical history of chronic juvenile arthritis with bilateral prosthetic hips presented with vulvoperineal ulcerations of 3…

Metronidazole-Induced Encephalopathy With Probable Crohn Encephalitis: A Case R…

PMID: 38743605
Year: 2024
Relationship Type: Association Score: 8.5

Metronidazole overexposure in children and its association with new-onset Crohn…

PMID: 38415084
Year: 2024
Relationship Type: Association Score: 8.5

Metronidazole or Rifaximin for Treatment of Clostridium difficile in Pediatric …

PMID: 29084080
Year: 2017
Relationship Type: Treatment Score: 8.3

The association between inflammatory bowel disease (IBD) and gut microbes has been widely investigated. Our previous study demonstrated that Lactoba…

Doxycycline, metronidazole and isotretinoin: Do they modify microRNA/mRNA expre…

PMID: 27853192
Year: 2016
Relationship Type: Adverse Effect Score: 8.3

Comment in J Pediatr Gastroenterol Nutr. 2016 Nov;63(5):451-452. OBJECTIVE: Transition readiness assessment has focused attention on adolescent …

Rifaximin is an effective alternative to metronidazole for the treatment of chr…

PMID: 27716258
Year: 2016
Relationship Type: Treatment Score: 8.3

Midkine is a multifunctional cytokine and growth factor displaying proinflammatory and pro-tumorigenic activity. Its association with bowel disease…

Showing 1-20 of 26 articles