- |||||||||| Dificid (fidaxomicin) / Merck (MSD), Astellas
First-line Fidaxomicin Use in High Risk Inpatients Reduces Recurrence Rates () - Aug 26, 2019 - Abstract #IDWeek2019IDWeek_2843; Global cure and CDI upon readmission also improved in the post-group (Table 1). In patients receiving partial courses of fidaxomicin, recurrence (9.3% vs 25%, P=0.19), global cure (86% vs 75%, P=0.44), and infection on readmission (28.6% vs 37.5%, P=0.67) were similar.Conclusion : Fidaxomicin as a first line agent in high risk CDI patients decreased recurrence and increased global cure.
- |||||||||| vancomycin / generics
One Dose Vancomycin Prophylaxis for In-Hospital Clostridioides difficile - Associated Disease () - Aug 26, 2019 - Abstract #IDWeek2019IDWeek_2829; Recent reports suggest that prophylactic administration of vancomycin or fidaxomicin might reduce in-hospital CDAD incidence...OVP group received ≥ 1 dose of vancomycin 125 mg once per day.Results : Patients within OVP group (122; 25.2%) had higher age adjusted Charlson comorbidity index (CCI) (8; IQR 6-10 vs. 6; 5-8), were more often hospitalized within 3 months (62; 50.8% vs. 121; 33.4%), more commonly received piperacillin/tazobactam (60; 49.2% vs. 81; 22.4%) and carbapenems (27; 22.1% vs. 43; 11.9%) with longer duration of antibiotic therapy (14; 10-20 vs 10; 10-14 days)...Only CDAD during index hospitalization was associated with 90-day readmission (HR 4.60; 95%CI 1.93-10.96).Conclusion : Primary OVP was highly effective in reducing the risk of in-hospital CDAD in elderly patients treated with systemic antimicrobial therapy. Prospective studies with follow-up are needed to define long-term efficacy and potential risks of this strategy.
- |||||||||| Dificid (fidaxomicin) / Merck (MSD), Astellas
Incidence of Clostridioides Difficile Infection Among United States Medicare Advantage Enrollees () - Aug 26, 2019 - Abstract #IDWeek2019IDWeek_2799; CDI patients were more likely than non-CDI patients to be older (mean age, 78.3 vs 76.1 y, P < 0.0001), be women (64.5% vs 58.1%, P < 0.0001), or have comorbidities (mean Charlson comorbidity index score, 4.5 vs 1.8, P < 0.0001).Conclusion : CDI incidence rates in the Medicare Advantage population were similar to those reported previously in the Medicare fee-for-service population and nationally among adults aged ≥ 65 years. Data are consistent with a high CDI burden among older US adults.Funding: Pfizer
- |||||||||| Dificid (fidaxomicin) / Merck (MSD), Astellas
Impact of Two-Step Testing on the Diagnosis and Management of Clostridium difficile in a Multi-Hospital Healthcare System () - Aug 26, 2019 - Abstract #IDWeek2019IDWeek_2403; Anti-CDI agents included fidaxomicin, metronidazole and oral vancomycin, but may have included non-CDI indications for metronidazole.Results : A total of 115 HO-CDI cases were identified; 91 (79%) before and 24 (21%) after. Use of a two-step approach for CDI testing reduced HO-CDI rates, but did not have a significant impact on anti-CDI antibiotic use in a multi-hospital community health system.
- |||||||||| Dificid (fidaxomicin) / Merck (MSD), Astellas, Zinplava (bezlotoxumab) / Merck (MSD)
FMT in clinical practice for C. difficile infection: Pro (F3) - Aug 18, 2019 - Abstract #UEGW2019UEGW_108; Donors are also included in the folllow-up to recognise diseases of which transmission to donors could be possible. In summary, FMT will remain as the first treatment choice for patients with rCDI, unless new regulations will classify donor feces suspensions as a drug or pharmaceutical product.
- |||||||||| Dificid (fidaxomicin) / Merck (MSD), Astellas
Journal: Tiacumicin Congeners with Improved Antibacterial Activity from a Halogenase-Inactivated Mutant. (Pubmed Central) - Aug 17, 2019 Tiacumicin B (1, also known as fidaxomicin or difimicin) is a marketed drug for the treatment of Clostridium difficile infections...Herein we report the isolation, structure elucidation, and bioactivity evaluation of 14 tiacumicin congeners (including 11 new ones) from the tiaM-inactivated mutant. A new tiacumicin congener, 3, with a propyl group at C-7‴ of the aromatic ring was found to exhibit improved antibacterial activity.
- |||||||||| Dificid (fidaxomicin) / Merck (MSD), Astellas
Journal: The effect of using Fidaxomicin on recurrent Clostridium difficile infection? (Pubmed Central) - Aug 15, 2019 There were mixed results with using fidaxomicin for severe CDI, with only 42% of patients responding. Our results suggest fidaxomicin is best suited as a treatment for mild CDI during a patient's first episode.
- |||||||||| Flagyl (metronidazole) / SLA, ceftriaxone / Generic Mfg.
Treatment of Severe Clostridioides difficile Infection With Intravenous Immunoglobulin (Exhibit Halls 3 and 4 (Street Level)) - Aug 8, 2019 - Abstract #ACG2019ACG_1578; Her hospital course was long and complicated, requiring trials of multiple antibiotics: ceftriaxone, metronidazole, piperacillin-tazobactam, and ertapenem...Despite 5 days of oral vancomycin, symptoms did not regress...Fidaxomicin was started...Moreover, IVIG may prove to be cost-effective by preventing severe or recurrent disease. In cases of CDI refractory to standard antibiotic treatment, passive immunity with IVIG may be a reasonable adjunct to standard therapy.
- |||||||||| Dificid (fidaxomicin) / Merck (MSD), Astellas
Cost-Effectiveness Analysis of Starting a Fecal Microbiota Transplantation (FMT) Unit for the Treatment of Recurrent C. difficile Infection Compared With Antibiotic Therapy (Exhibit Halls 3 and 4 (Street Level)) - Aug 8, 2019 - Abstract #ACG2019ACG_1496; In our base case analysis of all three FMT modalities treating 40 patients/year compared with vancomycin, FMT via enema was the most cost-effective strategy with an incremental cost-effectiveness rate (ICER) of $21,366.03, followed by ICERs of $37,911.01, and $37,743.24 via capsule and colonoscopy, respectively. Treatment with fidaxomicin in these patients was both more expensive and less effective than FMT, as it was dominated by all 3 FMT modalities.
- |||||||||| Flagyl (metronidazole) / SLA
Clostridioides difficile Enteritis Refractory to Multiple Fecal Microbiota Transplantions (Exhibit Halls 3 and 4 (Street Level)) - Aug 8, 2019 - Abstract #ACG2019ACG_1312; Over the next year, she had multiple recurrences of her CDI that failed vancomycin, fidaxomicin and IV immunoglobulin (IVIG)...Oral metronidazole has been used, with oral vancomycin used for refractory cases...Our case is unusual given the ongoing symptoms in a PCR negative CDI state. Further research is needed in patients with refractory CDI enteritis with analysis of their bowel flora to better understand this disease and how to treat it
- |||||||||| Remicade (infliximab) / Mitsubishi Tanabe, J&J, Xeljanz (tofacitinib) / Pfizer
Refractory Fulminant Ulcerative Colitis With Concurrent Clostridioides difficile Colitis Challenging Modern Guideline-Directed Medical Therapy to Failure (Exhibit Halls 3 and 4 (Street Level)) - Aug 8, 2019 - Abstract #ACG2019ACG_1010; He had IBD-related arthritis & was started on sulfasalazine then methotrexate (MTX)...Despite IV steroids, infliximab, & tofacitinib; sulfasalazine & MTX; parallel PO vancomycin, fidaxomicin, IVIG & FMT, along with lactobacillus acidophilus, bloody diarrhea continued; patient was dependent on fluid support & blood transfusions...Safety & efficacy of the various treatments including immunosuppressants & FMT in cases of concurrent UC & CDI is a grey zone. Further case-reports & studies are needed to establish the optimal stepwise approach & guide therapeutic choice & decision making.
- |||||||||| Dificid (fidaxomicin) / Merck (MSD), Astellas
Enrollment open, Trial completion date, Trial primary completion date: Efficacy of 30-day Duration of Fidaxomicin for Recurrent C. Difficile Infection (clinicaltrials.gov) - Aug 5, 2019 P3, N=50, Recruiting, Median treatment duration was 14 (range 8-60) days. Active, not recruiting --> Recruiting | Trial completion date: Jun 2018 --> Jun 2022 | Trial primary completion date: Dec 2017 --> Dec 2021
- |||||||||| Retrospective data, Journal: The prevalence of antibiotic-resistant Clostridium species in Iran: a meta-analysis. (Pubmed Central) - Aug 3, 2019
Metronidazole and vancomycin, as the first-line therapies, fidaxomicin, tetracyclines (except tetracycline), rifampicin and chloramphenicol can still be used for the treatment of C. difficile infections. However, the present results do not recommend the use of penicillin, bacitracin and tetracycline for the treatment of C. perfringens infections in humans and domestic animals in Iran.
- |||||||||| Dificid (fidaxomicin) / Merck (MSD), Astellas
Journal: Outcomes With Fidaxomicin Therapy in Clostridium difficile Infection. (Pubmed Central) - Jul 26, 2019 All patients with a first CDI episode treated with fidaxomicin responded with no recurrences. Patients with prior CDI episodes were less likely to respond (especially with more than 1 prior episode) and more likely to recur, suggesting a greater clinical benefit of fidaxomicin earlier in the course of CDI.
- |||||||||| Dificid (fidaxomicin) / Merck (MSD), Astellas
Journal: Fidaxomicin jamsRNA polymerase motions needed for initiation via RbpA contacts. (Pubmed Central) - Jul 19, 2019 The results establish that Fdx acts like a doorstop to jam the enzyme in an open state, preventing the motions necessary to secure promoter DNA in the active site. Our results provide a structural platform to guide development of anti-tuberculosis antimicrobials based on the Fdx binding pocket.
- |||||||||| Dificid (fidaxomicin) / Merck (MSD), Astellas
Preclinical, Journal: Impact of oral fidaxomicin administration on the intestinal microbiota and susceptibility tocolonization in mice. (Pubmed Central) - Jul 17, 2019 Bacterial diversity was similar prior to antibiotic exposure in both arms and decreased substantially after exposure. A shift in taxonomic structure and composition occurred after both exposures; however, the shift was greater in vancomycin- than in fidaxomicin-exposed mice.In summary, compared with vancomycin, fidaxomicin exposure had less impact on microbiota composition, promoted faster microbial recovery and had less impact on loss ofcolonization resistance.
- |||||||||| Dificid (fidaxomicin) / Merck (MSD), Astellas
Biomarker, Journal: Organic Solute Transporter OSTα/ß is Over-Expressed in Nonalcoholic Steatohepatitis and Modulated by Drugs Associated with Liver Injury. (Pubmed Central) - Jul 5, 2019 The interaction study with 26 compounds revealed novel OSTα/β inhibitors: a biomarker for cholestasis, glycochenodeoxycholic acid; the major metabolite of troglitazone, troglitazone sulfate; and a macrocyclic antibiotic, fidaxomicin...Additionally, some drugs (e.g., digoxin) consistently stimulated taurocholate uptake in OSTα/β overexpressing cells. Our findings demonstrate that OSTα/β is an important transporter in liver disease, and implicate a role for this transporter in bile acid-bile acid and drug-bile acid interactions, as well as cholestatic DILI.
- |||||||||| Dificid (fidaxomicin) / Merck (MSD), Astellas
Enrollment open, Trial primary completion date: Fecal Microbiota Transplant (FMT) Plus Fidaxomicin for Severe or Fulminant Clostridium Difficile Infection (clinicaltrials.gov) - Jun 30, 2019 P2, N=30, Recruiting, Our findings demonstrate that OSTα/β is an important transporter in liver disease, and implicate a role for this transporter in bile acid-bile acid and drug-bile acid interactions, as well as cholestatic DILI. Not yet recruiting --> Recruiting | Trial primary completion date: Dec 2020 --> Dec 2021
- |||||||||| Dificid (fidaxomicin) / Merck (MSD), Astellas
Clinical, Journal: Single centre clinical experience with fidaxomicin in the treatment of Clostridium difficile infection in Slovakia. (Pubmed Central) - May 26, 2019 Only one of three patients, with three or more recurrences of CDI, had no further presentations after eight weeks of completion of treatment. The biggest benefit from fidaxomicin treatment was shown in a cohort of patients with primary CDI infection demonstrating a low recurrence rate and significant reduction of fidaxomicin effectiveness in preventing a recurrence when treating patients with multiple rCDI.
- |||||||||| Dificid (fidaxomicin) / Merck (MSD), Astellas
Journal: Fidaxomicin and Fecal Microbiota Transplants for Severe Clostridium difficile Colitis. (Pubmed Central) - May 24, 2019 The biggest benefit from fidaxomicin treatment was shown in a cohort of patients with primary CDI infection demonstrating a low recurrence rate and significant reduction of fidaxomicin effectiveness in preventing a recurrence when treating patients with multiple rCDI. No abstract available
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