Fosfomycin Trometamol Compared With an Alternative Active Antibiotic as Step-down Therapy for the Treatment of Acute Pyelonephritis Due to Escherichia Coli in Elderly Women : a Randomized, Multicenter, Non-inferiority Trial (FOSFOLD)
Fosfomycine trométamol comparé à un Autre Traitement Antibiotique Actif en Relais Pour le Traitement Des pyélonéphrites aiguës à Escherichia Coli Chez Les Femmes âgées : Essai randomisé, Multicentrique de Non infériorité
Acute pyelonephritis (APN) is among the most common bacterial infections in older women. Oral step-down antibiotic therapy may potentially be associated with toxicity, particularly with fluoroquinolones or trimethoprim-sulfamethoxazole, espcially in geriatric patients. The emergence of resistant strains reduces the choice of oral step-down treatment, thereby increasing the risk of nosocomial complications related to intravenous access and prolonged hospitalization.
Fosfomycin trometamol (FT) has broad activity against Enterobacterales, including resistant strains. It has an excellent safety profile and moderate ecological impact, and has been used for several years to treat cystitis. Recent studies have demonstrated its efficacy as an oral step-down therapy for the treatment of E.coli APN in younger women. Its efficacy in a geriatric population remains to be demonstrated.
The primary objective is to demonstrate the non-inferiority, in terms of clinical cure, of FT compared with an alternative active antibiotic as step-down therapy for E. coli APN in older women.
FOSFOLD is a national, multicenter, randomised, comparative, phase 3, non-inferiority trial (1:1), open-label with two parallel treatment groups. After 3 or 4 days of appropriate empirical antibiotic therapy, women aged 75 or over with E.coli APN will be randomised to receive either 3g of FT once daily or an alternative antibiotic treatment in accordance with current french guidelines, for a total of 10 days.
The primary endpoint is clinical cure at Day 17, i.e. 10 days after completion of antibiotic therapy.
If non-inferiority of FT is confirmed, it could provide a new therapeutic approach for oral step-down therapy in the older patients with APN. Its favorable tolerability profile could help prevent common geriatric complications, such as delirium, falls and malnutrition. Ultimately, it could help prevent some of the iatrogenic functional decline associated with hospitalisation.
調査の概要
状態
状態
条件
条件
介入・治療
介入・治療
研究の種類
研究の種類
入学 (推定)
入学
段階
段階
- フェーズ 3
連絡先と場所
研究連絡先
研究連絡先
- 名前:Jérôme Lambert, MD PhD
- 電話番号:+33 +33 1 42 49 97 42
- メール:jerome.lambert@u-paris.fr
研究連絡先のバックアップ
- 名前:Clara Pouchelon, MD
- 電話番号:+33 +33 1 40 36 73 67
- メール:clara.pouchelon@ght-gpne.fr
参加基準
適格基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Female.
- Age ≥ 75 years.
- Body temperature ≥ 38°C on at least once during the 72 hours preceding diagnosis.
- At least one new symptom among the following : urinary urgency, dysuria, increased urinary frequency, gross hematuria, burning on urination, spontaneous of provoked flank or suprapubic pain or urinary incontinence.
- Positive urine culture collected before initiation of antibiotic therapy defined as : ≥ 10,000 leukocytes/mL and monomicrobial culture with Escherichia coli ≥ 103 CFU/mL and susceptibility to FT,the empirical antibiotic,and at least one alternative antibiotic (active and not contraindicated), administered either orally (fluoroquinolone, amoxicillin, amoxicillin-clavulanic acid, or trimethoprim-sulfamethoxazole or, in the absence of an oral alternative, intravenously.
- Ability to reveive oral medication
- Favorable clinical course after 3 or 4 days of effective empirical antibiotic therapy, defined as resolution of fever (temperature < 38°C) and regression or reduction in the intensity and/or frequency of the clinical sign(s) present at the time of APN diagnosis, without the occurrence of any new symptoms.
Exclusion Criteria:
- Presence of an infectious focus other than the urinary tract.
- Severe infection and/or initial infectious complications, including septic shock, requirement for an emergency upper urinary tract intervention, or renal abscess.
- Indwelling urinary catheter, including bladder, ureteral, or nephrostomy catheters.
- Inability to take oral medication.
- Immunosuppression, including sold-organ transplant, ongoing immunosuppressive therapy, ongoing chemotherapy.
- Hypersensitivity to fosfomycin trometamol or to any of the excipients of the study medication
- End-stage chronic kidney disease with an estimated glomerular filtration rate (eGFR) < 15 mL/min/1.73 m2.
- Lack of health insurance coverage.
- Patient under legal protection or guardianship.
- Absence of written informed consent from the patient or, if the patient is unable to provide consent, absence of agreement from the designated trusted person or a close relative.
- Participation in another interventional clinical research protocole
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:処理
- 割り当て:ランダム化
- 介入モデル:並列代入
- マスキング:なし(オープンラベル)
アーム数
武器と介入
参加者グループ / アーム参加者グループ / アーム |
介入・治療介入・治療 |
|---|---|
|
実験的:Fosfomycin-trometamol (FT)
|
One sachet (3g), once daily, orally for 6 or 7 days, following 4 or 3 days, respectivelly of effective antibiotic therapy, for a total of 10 days of effective antibiotic treatment. |
|
アクティブコンパレータ:Alternative antibiotic treatment
|
Treatment will be selected at the investigator's discretion, in accordance with the 2017 recommandations of the French Society for Infectious Diseases (SPILF) and the 2025 French National Authority for Health (HAS) guidelines. Therapy will be administrated for 6 or 7 days (Day 1 - Day 6/7), following 4 or 3 days, respectively of effective antibiotic therapy. The total duration of effective antibiotic therapy will be 10 days. Injection antibiotic therapy will be offered in the absence of an active oral antibiotic option. |
この研究は何を測定していますか?
主要な結果の測定
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Clinical resolution
時間枠:Day 17
|
Clinical cure defined as :
|
Day 17
|
二次結果の測定
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Occurence of antibiotic-related adverse events
時間枠:Up to 37 days
|
Occurrence, nature, and severity of antibiotic-related adverse events, assessed using the National Cancer Institute Common Terminology Criteria for Adverse Events (CTCAE) scale. |
Up to 37 days
|
|
Occurence of geriatric complications
時間枠:Up to 37 days
|
|
Up to 37 days
|
|
Functional autonomy
時間枠:Up to 37 days
|
According to the Activities of Daily Living (ADL) scale: score ranges from 0 (complete dependence) to 6 (complete independence), with higher scores indicating greater independence in basic daily activities such as bathing, dressing, toileting, transferring and eating. |
Up to 37 days
|
|
Incidence of Infectious and urological complications
時間枠:Up to day 7
|
|
Up to day 7
|
|
Cumulative incidence of recurrent febrile or non-febrile urinary tract infectious (UTIs) (relapse or reinfection)
時間枠:From Day 17 to Day 37
|
|
From Day 17 to Day 37
|
|
Rate of hospitalization or rehospitalization following treatment for APN
時間枠:Up to day 37
|
Up to day 37
|
|
|
Length of hospital stay following randomization
時間枠:Up to day 37
|
Up to day 37
|
|
|
All-cause mortality
時間枠:Up to day 37
|
Up to day 37
|
|
|
Rate of rectal colonization with antibiotic-resistant Enterobacterales
時間枠:Up to day 37
|
fluoroquinolones, trimethoprim-sulfamethoxazole, fosfomycin, and third-generation cephalosporins |
Up to day 37
|
協力者と研究者
研究記録日
主要日程の研究
研究開始 (推定)
研究開始
一次修了 (推定)
一次修了
研究の完了 (推定)
研究の完了
試験登録日
最初に提出
最初に提出
QC基準を満たした最初の提出物
QC基準を満たした最初の提出物
最初の投稿 (実際)
最初の投稿
学習記録の更新
投稿された最後の更新 (実際)
投稿された最後の更新
QC基準を満たした最後の更新が送信されました
QC基準を満たした最後の更新が送信されました
最終確認日
最終確認日
詳しくは
本研究に関する用語
追加の関連 MeSH 用語
その他の研究ID番号
その他の研究ID番号
- APHP240802
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
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