CLINICAL TRIALS PROFILE FOR FOSFOMYCIN TROMETHAMINE
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All Clinical Trials for FOSFOMYCIN TROMETHAMINE
| Trial ID | Title | Status | Sponsor | Phase | Start Date | Summary |
|---|---|---|---|---|---|---|
| NCT02178254 ↗ | Safety, Tolerability and PK 3-Period Crossover Study Comparing 2 Single Doses of ZTI-01 and Monurol® in Healthy Subjects | Completed | National Institute of Allergy and Infectious Diseases (NIAID) | Phase 1 | 2014-08-01 | The objective is to determine the safety, tolerability and pharmacokinetics (PK) of 2 single doses of ZTI-01 (1g and 8g infused over 1-hr) and a single dose of the Reference Label Drug, Monurol® (oral sachet, 3g). Subjects will be randomized to a treatment sequence prior to dosing on Day 1 of Period 1 prior to study screening. |
| NCT02570074 ↗ | PK/PD and Safety/Tolerability of Two Dosing Regimens of Oral Fosfomycin Tromethamine in Healthy Adults | Completed | National Institute of Allergy and Infectious Diseases (NIAID) | Phase 1 | 2016-01-01 | Oral dosage regimens for fosfomycin tromethamine (Monurol™) are not established for the treatment of cUTI. The most common and recommended adult dosage regimen in the literature is a single-dose sachet containing the equivalent of 3 grams of fosfomycin administered every other day (QOD) for a total of three doses. There are a myriad of different oral fosfomycin dosing regimens currently being used in clinical practice, including up to 3 grams orally twice daily for 7-21 days, but these regimens are not based on solid pharmacokinetic, pharmacodynamic or safety rationale. Initial pharmacokinetic studies performed with oral fosfomycin tromethamine primarily examined single dose regimens and did not use modern day bioanalytical or pharmacokinetic techniques. As the use of fosfomycin becomes more pervasive in concordance with the increase in multidrug resistant pathogens, further pharmacokinetic and safety data are needed for more intensive dosing regimens to support its continued use. The rationale of this study is that oral fosfomycin tromethamine requires a modern pharmacokinetic-pharmacodynamic study to identify alternative oral dosage regimens that are appropriate and safe. This study provided safety/tolerability and clinical pharmacology information regarding two oral dosing regimens that may have application to treat various types of infections involving resistant pathogens or when other oral antibacterial options are not available. |
| NCT02570074 ↗ | PK/PD and Safety/Tolerability of Two Dosing Regimens of Oral Fosfomycin Tromethamine in Healthy Adults | Completed | Vance Fowler, M.D. | Phase 1 | 2016-01-01 | Oral dosage regimens for fosfomycin tromethamine (Monurol™) are not established for the treatment of cUTI. The most common and recommended adult dosage regimen in the literature is a single-dose sachet containing the equivalent of 3 grams of fosfomycin administered every other day (QOD) for a total of three doses. There are a myriad of different oral fosfomycin dosing regimens currently being used in clinical practice, including up to 3 grams orally twice daily for 7-21 days, but these regimens are not based on solid pharmacokinetic, pharmacodynamic or safety rationale. Initial pharmacokinetic studies performed with oral fosfomycin tromethamine primarily examined single dose regimens and did not use modern day bioanalytical or pharmacokinetic techniques. As the use of fosfomycin becomes more pervasive in concordance with the increase in multidrug resistant pathogens, further pharmacokinetic and safety data are needed for more intensive dosing regimens to support its continued use. The rationale of this study is that oral fosfomycin tromethamine requires a modern pharmacokinetic-pharmacodynamic study to identify alternative oral dosage regimens that are appropriate and safe. This study provided safety/tolerability and clinical pharmacology information regarding two oral dosing regimens that may have application to treat various types of infections involving resistant pathogens or when other oral antibacterial options are not available. |
| NCT03697993 ↗ | Safety and Efficacy Study of Oral Fosfomycin Versus Oral Levofloxacin to Treat Complicated Urinary Syndromes (FOCUS) | Terminated | National Institute of Allergy and Infectious Diseases (NIAID) | Phase 4 | 2018-11-07 | This is a Phase 4, multi-center, open-label, randomized pragmatic superiority clinical trial comparing two strategies for initial or step-down oral therapy for complicated urinary tract infections (cUTI) after 0-48 hours of parenteral antibiotic therapy. The trial will evaluate the success and safety of a strategy of initial or step-down fosfomycin, administered at a dose of 3 g once daily, vs. a strategy of initial or step-down levofloxacin administered at a dose of 750 mg once daily. Investigator-directed adjustment to another adequate oral therapy is allowed 1) if the causative pathogen is not susceptible in vitro to quinolone initial or step-down therapy in a subject randomized to the levofloxacin strategy, OR 2) if the subject develops an intolerance or allergy to the initial step-down oral therapy and at the investigator's discretion, OR 3) the subject has an underlying condition posing increasing risk for adverse events from quinolone therapy. The duration of oral therapy (initial + investigator-directed adjustment if indicated) in each strategy is 5-7 days of any per protocol antibiotic to which the pathogen is susceptible. The dosing of oral therapy depends on creatinine clearance (CrCl). The trial will enroll approximately 634 patients that are either male or female aged 18 or older with cUTI from outpatient and inpatient settings. The study will take place over 25 months in up to 15 US sites. The primary objective is to compare Strategy 1 and Strategy 2 in terms of treatment success rates at Test of Cure (TOC). |
| NCT05254808 ↗ | EXtended Use of FOsfomycin for the Treatment of CYstitis in Primary Care | Terminated | Saltro | Phase 3 | 2021-09-06 | Cystitis is the most frequent reason for women to visit their general practitioner. More than 600.000 women suffer from urinary tract infections in The Netherlands each year. Currently, the 1st choice treatment for uncomplicated cystitis is nitrofurantoin (NIT) for 5 days. The second choice is 3 gram fosfomycin-trometamol (FT) in a single dose. FT is increasingly prescribed because it has few side-effects and it has a patient-friendly dosing scheme. Previous research did not show significant difference in efficacy between fosfomycin and nitrofurantoin, but a clinical trial from 2018 claims a single dose of FT might be inferior to 5 days of nitrofurantoin. Pharmacodynamic and pharmacokinetic research suggests that a single dose of FT may be insufficient to cure cystitis. Overall, it remains unknown whether a single gift of FT is as efficacious as 5 days of nitrofurantoin for uncomplicated cystitis with regard to clinical cure and if an additional gift of FT would overcome this. A clinical trial is therefore warranted. Objective: To investigate the comparative effectiveness and side-effects of 5 days of nitrofurantoin, single dose FT, and extended use of FT in uncomplicated cystitis in primary care. Study design: An open-label randomized non-inferiority / superiority study with 3 arms. Study population: 777 non-pregnant women with symptoms of uncomplicated cystitis, with 259 subjects in each study arm. Intervention: (A) FT in a single dose of 3000mg on day 1; (B) extended dosing of 3000mg FT on day 1 and 3 (C) nitrofurantoin 100mg bid (slow release) for 5 days. Main study parameters/endpoints: primary: days of absence of cystitis symptoms within 28 days. Secondary: clinical failure on day 28, microbiological failure on day 28, incidence of side-effects, cost-effectiveness Burden and risks associated with participation, benefit and group relatedness: A potential risk of participation is that the treatment arm to which the patient is allocated is either less efficacious, has more adverse events or higher recurrence rate than the other treatment arms. However, NIT and FT are both frequently used for urinary tract infections and considered safe and effective compounds for uncomplicated cystitis. According to previous studies, a second dose of FT is well tolerated. The potential risks of participation on severe adverse events is expected to be negligible as the risk of severe clinical failure after cystitis treatment is only 1% according to previous studies and differences between NIT and FT have not been observed previously. A potential benefit of participating to this study is that a more patient friendly treatment scheme is equally effective. For future patients the guidelines could be improved and become more patient-friendly. The burden of participation is considered low. Study participants need to complete a short daily questionnaire on a mobile application up to 28 days. |
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