Drug ID:Drug113
Drug Name:Fidaxomicin
CID:10034073
DrugBank ID:DB08874
Modality:Small Molecule
Groups:approved
US Approved:YES
Other Approved:YES
Identifier: NCT06794944
Molecular Formula:C52H74Cl2O18
Molecular Weight:1058.0 g/mol
Isomeric SMILES:CC[C@H]1/C=C(/[C@H](C/C=C/C=C(/C(=O)O[C@@H](C/C=C(/C=C(/[C@@H]1O[C@H]2[C@H]([C@H]([C@@H](C(O2)(C)C)OC(=O)C(C)C)O)O)\\C)\\C)[C@@H](C)O)\\CO[C@H]3[C@H]([C@H]([C@@H]([C@H](O3)C)OC(=O)C4=C(C(=C(C(=C4O)Cl)O)Cl)CC)O)OC)O)\\C
Synonyms:Fidaxomicin; Dificlir; 873857-62-6; Lipiarmicin; Difimicin; Clostomicin B1; R-Tiacumicin B; Lipiarmycin A 3; fidaxomicine; Fidaxomicina
Phase 0: 0
Phase 1: 2
Phase 2: 4
Phase 3: 10
Phase 4: 11
Description:One of the first narrow spectrum macrocyclic antibiotic, it is a natural compound and is structurally similar to compounds in lipiarmycin-a fermentation mixture. FDA approved on May 27, 2011.

Molecular Structure

2D Molecular Structure

Knowledge Graph

dtIDCIDCompound NameGene IDGene NameSpeciesPubMed IDsAction
dt958 10034073 Fidaxomicin 1576 CYP3A4 Homo sapiens (human) 8877250 Inhibitor
dt959 10034073 Fidaxomicin 5243 ABCB1 Homo sapiens (human) 22610025 Substrate

  • 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
NCT06794944 Use of Fidaxomicin Compared to Vancomycin for Decolonization of C. Difficile in Patients with Inflammatory Bowel Disease PHASE4 NOT_YET_RECRUITING Brigham and Women's Hospital Inflammatory Bowel Disease (IBD)|Clostridioides D… DRUG: Vancomycin (POC)|DRUG: Fidaxomicin Details
NCT02437591 Open Label Study to Evaluate the Pharmacokinetics of Fidaxomicin in Inflammatory Bowel Disease (IBD) Subjects With Clostridium Difficile Infection (CDI) PHASE4 Not recruiting Astellas Pharma Europe Ltd. Inflammatory Bowel Disease (IBD);Clostridium Diff… Drug: fidaxomicin Details
EUCTR2014-003002-32-CZ Open label study to evaluate the pharmacokinetics of fidaxomicin in Inflammatory Bowel Disease (IBD) Subjects with Clostridium difficile Infection (CDI) - PROFILE PHASE3|PHASE4 Not Recruiting Astellas Pharma Europe Ltd. Clostridium Difficile Infection (CDI) also known … Trade Name: Dificlir Product Name: DIFICLIR 200 m… Details

Disease IDDisease NameDefinitionCategoryRelated DrugsMechanism
1.0 Crohn's disease An intestinal disease that involves inflammation located_in intestine. disease of anatomical entity gastrointestinal system disease, intestinal disease, inflammatory bowel disease Obiltoxaximab; Budesonide; Hydrocortisone acetate; Sulfasalazine; Ursodeoxycholic acid; Pegunigalsidase alfa; Imiglucerase; Bictegravir; Taliglucerase alfa; Etelcalcetide; Cimetidine; Desonide Crohn's disease is a relapsing systemic inflammatory diseas… Details
2.0 ulcerative colitis A colitis that is predominantly confined to the mucosa located_in colon and includes characteristic ulcers, or open sores. disease of anatomical entity, gastrointestinal system disease, autoimmune disease of gastrointestinal tract; intestinal disease, inflammatory bowel disease, colitis; disease, primary immunodeficiency disease, autoimmune disease, autoimmune disease of gastrointestinal tract Mirikizumab; Olsalazine; Balsalazide; Sulfasalazine; Budesonide; Hydrocortisone acetate; Tixocortol; Kappadione; Teicoplanin; Atezolizumab; Gamolenic acid; Upadacitinib No abstract available Details

Strategy IDTherapeutic StrategySynonymsRelated DrugsMechanism
S01 Anti-inflammatory inflammatory 5-Aminosalicylates (5-ASAs); corticosteroids Crohn's disease and ulcerative colitis are the two main com… Details
S02 Immunosuppression Classic immunosuppressive drugs azathioprine; 6-mercaptopurine; methotrexate; ciclosporin-A; tacrolimus Ciclosporin-A and tacrolimus bind to specific intracellular… Details
S03 Anti-TNF agents Tumor necrosis factor infliximab; adalimumab; golimumab; certolizumab pegol TNF is produced by various immune and non-immune cells in t… Details
S04 T-cell homing and retention T-cell trafficking vedolizumab; anti-MAdCAM1 antibodies ; etrolizumab Inhibition of the interaction between α4β7 integrins on T c… Details
S05 Angiogenesis cell proliferation; vascular permeability ozanimod The bioactive lipid S1P has been shown to activate NF-κB an… Details
S07 Blockade of cytokine Cytokine signalling apremilast; roflumilast; filgotinib; tofacitinib; ABT494; ABT-874; ustekinumab; isankizumab; LY-2525623; AMG139; MEDI2079; guselkumab Various T-cell subsets, their differentiation pathways and … Details
S08 Strengthening barrier function Modulation of barrier function phosphatidylcholine (lecithin); imiquimod; mongersen Escherichia coli Nissle (EcN) is a nonpathogenic Gram-negat… Details
S11 Improveming Intestinal Microecology the intestinal microbiota antibiotics; probiotics; prebiotics; postbiotics; synbiotics; fecal microbiota transplantation (FMT) The imbalance between beneficial bacteria and harmful patho… Details

Fidaxomicin Treatment of Clostridioides difficile Infections and Recurrences in…

PMID: 40482880
Year: 2025
Relationship Type: Treatment Score: 6.5

OBJECTIVE: To report the effectiveness and tolerability of treating children with primary and recurrent Clostridioides difficile infection (CDI) with…

Fidaxomicin Reduces Collagen Expression in Intestinal Fibroblasts Via Platelet-…

PMID: 40398622
Year: 2025
Relationship Type: Treatment Score: 6.5

INTRODUCTION: About 30%-50% of patients with Crohn's disease (CD) eventually develop intestinal strictures, with intestinal fibrosis being a major co…

Fidaxomicin for Clostridioides difficile infection in patients with inflammator…

PMID: 40168072
Year: 2025
Relationship Type: Treatment Score: 6.5

BACKGROUND AND AIMS: Inflammatory bowel disease (IBD) patients with Clostridioides difficile infection (CDI) are at increased risk of adverse outcome…

Fidaxomicin treatment for Clostridioides difficile infection in patients with i…

PMID: 37337469
Year: 2023
Relationship Type: Treatment Score: 6.5

BACKGROUND AND AIM: Although fidaxomicin is an effective first-line treatment for Clostridioides difficile infection, it has not been well studied in…

Correction to: Fidaxomicin for the treatment of Clostridium difficile infection…

PMID: 30406879
Year: 2019
Relationship Type: Treatment Score: 6.5

The article "Fidaxomicin for the treatment of Clostridium difficile infection (CDI) in at-risk patients with inflammatory bowel disease, fulminant CD…

Fidaxomicin for the treatment of Clostridium difficile infection (CDI) in at-ri…

PMID: 30099637
Year: 2018
Relationship Type: Treatment Score: 6.3

Information is limited or lacking on fidaxomicin treatment of Clostridium difficile infection (CDI) in patients with inflammatory bowel disease, fulm…

Outcomes With Fidaxomicin Therapy in Clostridium difficile Infection

PMID: 28009682
Year: 2018
Relationship Type: Treatment Score: 6.3

BACKGROUND AND GOALS: Fidaxomicin is a new antibiotic used to treat Clostridium difficile infection (CDI). Given limited clinical experience with fid…