細菌感染症で病院に入院した乳児および新生児を対象とした治験薬アズトレオナム・アビバクタム（ATM-AVI）について学ぶための研究（CHERISH） (CHERISH)
出生から生後9か月未満の新生児および乳児を対象としたアズトレオナムおよびアビバクタム±メトロニダゾールの薬物動態、安全性および忍容性を評価するための第2a相、2部構成、非盲検、非ランダム化、多施設共同単回および複数回用量試験抗生物質の静脈内投与を必要とするグラム陰性病原体による感染が疑われる、または感染が確認された場合
The purpose of this study is to learn about the safety and effects of ATM-AVI for the possible treatment of infections caused by a type of bacteria called gram-negative bacteria.
The study medicine is a combination of an antibiotic, aztreonam (ATM), and another medicine, avibactam (AVI), which is used to help stop bacteria from being resistant to antibiotics. Antibiotics are medicines that fights bacteria and infections.
The study will include newborns and infants up to 9 months of age who are admitted in the hospital.
The study is conducted in 2 parts: Part A and Part B.
In Part A, all participants will receive a single intravenous (injected directly into a vein) infusion of ATM-AVI. This is to study the safety and effects of a single amount.
In Part B, all participants will receive multiple intravenous infusions of ATM-AVI as treatment for a possible or confirmed infection with gram-negative bacteria.
調査の概要
状態
条件
詳細な説明
This is a 2-part Phase 2a, non-randomized, multicenter, open-label, single and multi-dose study to assess pharmacokinetics (PK), safety, and tolerability of ATM-AVI in hospitalized neonates and infants aged birth, including preterm birth, to <9 months. A total of 48 participants will be enrolled in 4 age cohorts of 12 each, 6 Part A and 6 Part B. Part A will begin enrolling before Part B and no infant may participate in both parts. Cohort 1 will include full term infants age ≥13 weeks to <39 weeks and preterm infants postmenstrual age ≥50 weeks to <75 weeks. Cohort 2 will include full term infants age ≥28 weeks to <13 weeks and preterm infants postmenstrual age ≥40 weeks to <50 weeks and ≥28 days of age. Cohort 3 will include full term infants age birth to <28 days. Cohort 4 will include preterm infants age birth to <28 days or postmenstrual age <40 weeks.
Participants in Part A must be hospitalized and receiving intravenous antibiotic treatment for a suspected or confirmed bacterial infection. Participants will receive a single 3 hour intravenous infusion of ATM-AVI and have 3 ATM-AVI blood level assessments during and up to 5 hour after the infusion. Participants will be observed for 48 hours following the infusion to assess safety and toleration and will have a final follow-up safety assessment which may be conducted by telephone 4-5 weeks following the infusion. The single infusion of ATM-AVI is administered to assess the safety, tolerability, and pharmacokinetics of a single dose of ATM-AVI and is not intended as treatment for the bacterial infection. The total duration of study participation in Part A is expected to be 5 weeks through the end of the final safety follow-up.
Participants in Part B must be hospitalized with suspected or confirmed aerobic gram-negative bacterial infection requiring intravenous antibacterial therapy. Part B participants will receive multiple 3 hour intravenous infusions of ATM-AVI every 6 hour (8 hours for preterm infants) for 3-14 days as treatment for their bacterial infection and to assess ATM-AVI pharmacokinetics, safety, tolerability, and efficacy. Participants with complicated intra-abdominal infection (cIAI) will also receive intravenous metronidazole and all participants will have the option to receive other intravenous antibiotic treatment for gram-positive bacteria, as appropriate. Participants who have a good clinical response after 72 hours of intravenous ATM-AVI treatment may be switched to a different orally administered antibiotic, if clinically appropriate. Part B participants will have a total of 5 ATM-AVI blood level assessments over the first 2 or more days following the start of ATM-AVI infusions and will have their clinical response assessed at the End of Treatment (intravenous and oral, if applicable), and at a Test-of-Cure (TOC) evaluation 7 to 14 days after the last antibiotic treatment (intravenous or oral). A final safety assessment which may be conducted by telephone will occur 4-5 weeks after the last dose of ATM-AVI. The total duration of study participation in Part B is expected to be up to 7 weeks through the end of the final safety follow-up.
Additional safety monitoring will be provided by an independent external Data Monitoring Committee (DMC). Enrollment for the study will begin with Part A, single dose, cohorts 1-3. Part A Cohort 4 (preterm neonates) will commence enrollment after sponsor and DMC review of plasma drug levels and safety for a least 2 participants in Part A Cohort 3 and review of ATM-AVI safety and tolerability for all participants enrolled at that time. Enrollment in the multidose Part B cohorts will be delayed until preliminary information is obtained regarding ATM-AVI multidose safety, tolerability, and drug levels for the participants 9 months to 2 years of age in the separate ongoing ATM-AVI pediatric study C3601008 [NCT05639647].
研究の種類
入学 (推定)
段階
- フェーズ2
連絡先と場所
研究連絡先
- 名前：Pfizer CT.gov Call Center
- 電話番号：1-800-718-1021
- メール：ClinicalTrials.gov_Inquiries@pfizer.com
研究場所
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California
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Orange、California、アメリカ、92868
- 募集
- Children's Hospital of Orange County
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Orange、California、アメリカ、92868
- 募集
- Children's Hospital of Orange County Southwest Tower
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Colorado
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Aurora、Colorado、アメリカ、80045
- 募集
- Children's Hospital Colorado
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Indiana
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Indianapolis、Indiana、アメリカ、46202
- 募集
- Riley Hospital for Children at Indiana University Health
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Kentucky
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Louisville、Kentucky、アメリカ、40202
- 募集
- Norton Children's Hospital
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Louisville、Kentucky、アメリカ、40202
- 募集
- Novak Center for Children's Health
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Louisville、Kentucky、アメリカ、40202
- 募集
- University of Louisville, Norton Children's Research Institute
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Massachusetts
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Boston、Massachusetts、アメリカ、02111
- 募集
- Tufts Medical Center
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North Carolina
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Durham、North Carolina、アメリカ、27710
- 募集
- Duke University - Main Hospital and Clinics
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Texas
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Houston、Texas、アメリカ、77030
- 募集
- The University of Texas Health Science Center at Houston
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Houston、Texas、アメリカ、77030
- 募集
- Memorial Hermann Hospital - Texas Medical Center
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Buenos Aires
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Ciudad Autónoma de Buenos Aires、Buenos Aires、アルゼンチン、1039
- 募集
- Sanatorio Sagrado Corazón
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Mar del Plata、Buenos Aires、アルゼンチン、7600
- 募集
- Clinica Del Niño Y La Madre
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Córdoba Province
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Córdoba、Córdoba Province、アルゼンチン、X5000IIH
- 募集
- Clinica Privada del Sol S.A
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Tucumán Province
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San Miguel de Tucumán、Tucumán Province、アルゼンチン、4000
- 募集
- Hospital del Niño Jesús
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Central District
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Petah Tikva、Central District、イスラエル、49202
- 募集
- Schneider Children's Medical Center
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Northern District
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Haifa、Northern District、イスラエル、3109601
- 募集
- Rambam Health Care Campus
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Florence
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Florence、Florence、イタリア、50139
- 募集
- Azienda Ospedaliera Universitaria Meyer IRCCS
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Gujarat
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Surat、Gujarat、インド、395002
- 募集
- Nirmal Hospital Pvt Ltd.
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Karnataka
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Bengaluru、Karnataka、インド、560074
- 募集
- RajaRajeswari Medical College and Hospital
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Maharashtra
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Pune、Maharashtra、インド、411006
- 募集
- Sahyadri Super Speciality Hospital
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Uttar Pradesh
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Lucknow、Uttar Pradesh、インド、226030
- 募集
- Medanta Hospital Lucknow
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West Bengal
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Kolkata、West Bengal、インド、700017
- 募集
- Institute of Child Health
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Kentrikí Makedonía
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Thessaloniki、Kentrikí Makedonía、ギリシャ、546 42
- まだ募集していません
- Ippokrateio General Hospital of Thessaloniki
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Madrid、スペイン、28041
- まだ募集していません
- Hospital Universitario 12 de Octubre
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Madrid, Comunidad de
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Madrid、Madrid, Comunidad de、スペイン、28046
- 募集
- Hospital Universitario La Paz
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Burgas、ブルガリア、8000
- 募集
- UMHAT Deva Maria
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Rousse、ブルガリア、7002
- 募集
- Umhat Kanev
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Taichung、台湾、407
- 募集
- Taichung Veterans General Hospital
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Taoyuan、台湾、33305
- 募集
- Chang Gung Medical Foundation Linkou Chang Gung Memorial Hospital
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Hsinchu
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Hsinchu、Hsinchu、台湾、300046
- 募集
- Hsinchu Municipal Mackay Children's Hospital
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Hualien
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Hualien City、Hualien、台湾、970
- 募集
- Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation
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参加基準
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
Participants must meet the following key inclusion criteria to be eligible for enrollment into the study:
- Hospitalized with age from birth <9 months, including preterm birth
- Part A: Receiving IV antibiotics for treatment of suspected or confirmed bacterial infection, including but not limited to cIAI, cUTI, HAP/VAP, BSI, or sepsis.
- Part B: Suspected or confirmed gram-negative bacterial infection requiring IV antibiotics, including but not limited to cIAI, cUTI, HAP/VAP, BSI, or sepsis.
Participants with any of the following characteristics/conditions will be excluded:
- Received any other investigational medicinal product within the longer of 30 days or 5 half-lives before enrollment.
- Any medical or laboratory abnormality that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study.
- Severe renal impairment or known significant renal disease, as evidenced by elevated serum creatinine at screening, or urinary output <0.5 mL/kg/h for 6 consecutive hours or requirement for dialysis.
- Part B Only: Received >24 hours of systemic antibiotic treatment for gram-negative organisms at time of enrollment, unless documented treatment failure or lack of improvement in at least one objective sign or symptom of infection after ≥48 hours of antibiotics.
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：基礎科学
- 割り当て：非ランダム化
- 介入モデル：単一グループの割り当て
- マスキング：なし（オープンラベル）
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
実験的：Part A, Cohorts 1-4
Single dose pharmacokinetics. |
Single intravenous infusion of aztreonam-avibactam over 3 hours to assess pharmacokinetics, safety, and toleration. |
|
実験的：Part B, Cohorts 1-4
Multi-dose pharmacokinetics and treatment |
Multiple intravenous infusions of aztreonam-avibactam over 3 hours, repeated every 6-8 hours up to 14 days to assess pharmacokinetics, safety, toleration, and efficacy. |
この研究は何を測定していますか？
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Maximum Predicted Plasma Concentration (Cmax) of ATM and AVI
時間枠：Up to Day 15
|
Cmax is the maximum plasma concentration of ATM and AVI as population pharmacokinetic (popPK) analysis predicts. |
Up to Day 15
|
|
Area under the Concentration-Time Curve (AUC) of ATM-AVI
時間枠：Up to Day 15
|
AUC is a measure of the plasma concentration of ATM and AVI overtime as popPK analysis predicts. |
Up to Day 15
|
|
Plasma Elimination Half-Life (t1/2)
時間枠：Up to Day 15
|
Half-life is the time measured for the plasma concentration of ATM and AVI to decrease by one half as popPK analysis predicts. |
Up to Day 15
|
|
Apparent Clearance (CL)
時間枠：Up to Day 15
|
ATM and AVI clearance is a quantitative measure of the rate at which ATM and AVI are removed from the blood (rate at which ATM and AVI are metabolized or eliminated by normal biological processes). Clearance obtained after intravenous infusion dose (apparent clearance) is influenced by the fraction of the dose absorbed. |
Up to Day 15
|
|
Plasma concentrations of ATM and AVI by nominal sampling time
時間枠：Up to Day 15
|
Plasma concentrations of ATM and AVI on Day 1 and at steady state (Day 2 or later) will be summarized by the nominal sampling time using descriptive statistics (eg number, mean, standard deviation). |
Up to Day 15
|
|
Proportion of Participants reporting Adverse Events (AE)
時間枠：Baseline up to Day 50
|
Proportion of participant AE reports of vital signs, physical examinations, and clinical laboratory tests overall and by age cohort. For each AE the last assessment made prior to the first dose of study drug will be defined as the baseline. |
Baseline up to Day 50
|
|
Proportion of Participants reporting Serious Adverse Events (SAE)
時間枠：Baseline up to Day 50
|
Proportion of participant SAE reports of vital signs, physical examinations, and clinical laboratory tests overall and by age cohort. For each SAE the last assessment made prior to the first dose of study drug will be defined as the baseline. |
Baseline up to Day 50
|
|
Proportion of Participants reporting AEs leading to discontinuation of study drug
時間枠：Baseline up to Day 50
|
Proportion of Participants reporting AEs leading to discontinuation of study drug from baseline. For each discontinuation the last assessment made prior to the first dose of study drug will be defined as the baseline. |
Baseline up to Day 50
|
|
Proportion of Participants reporting AEs resulting in death
時間枠：Baseline up to Day 50
|
Proportion of Participants reporting AE resulting in death from baseline. For each death the last assessment made prior to the first dose of study drug will be defined as the baseline. |
Baseline up to Day 50
|
|
Proportion of Participants reporting liver injury and acute kidney injury
時間枠：Baseline up to Day 50
|
Proportion of Participants reporting liver injury and acute kidney injury from baseline. For each report of liver and acute kidney injury the last assessment made prior to the first dose of study drug will be defined as the baseline. |
Baseline up to Day 50
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Part B: Proportion of participants with each clinical outcome and with a favorable clinical outcome at end of IV study treatment (EOIV)
時間枠：Up to 15 days after start of IV study treatment
|
Clinical Cure is defined baseline signs and symptoms improved such that no further antimicrobial treatment is required for an aerobic gram-negative baseline infection. Participants who receive treatment for gram-positive organisms or adjunctive therapy for Pseudomonas aeruginosa, as allowed per protocol, can still have a response of cure. Clinical improvement is defined as baseline signs and symptoms sufficiently improved to allow switching to an oral antibiotic treatment. A favorable outcome is clinical cure or clinical improvement. Failure is defined as a requirement for further antibiotic treatment, including following premature discontinuation due to an adverse event, or death after receiving at least 48 hours of treatment. Indeterminant is defined as data not available for evaluation of efficacy for any reason. |
Up to 15 days after start of IV study treatment
|
|
Part B: Proportion of participants with each clinical outcome and with a favorable clinical outcome at end of treatment (EOT)
時間枠：Within 48 hours after last dose of oral switch treatment
|
EOT is only applicable for participants switched to an oral antibiotic treatment. Possible outcomes are cure, failure, or indeterminant. |
Within 48 hours after last dose of oral switch treatment
|
|
Part B: Proportion of participants with each clinical outcome and with a favorable clinical outcome at test of cure (TOC)
時間枠：7-14 days after the last study treatment
|
Possible outcomes are cure, failure, or indeterminant. |
7-14 days after the last study treatment
|
|
Part B: Proportion of participants with a favorable microbiological response at TOC
時間枠：7-14 days after the last study treatment
|
A favorable response is eradication or presumed eradication. Eradication is absence of the causative pathogen from an appropriately obtained specimen at the site of infection. Presumed eradication is when a repeat culture was not performed and the clinical response is cure. |
7-14 days after the last study treatment
|
|
Part B: Counts and proportions of pathogens with each per-pathogen microbiological response at EOIV/EOT
時間枠：Up to 15 days after start of IV study treatment
|
Possible outcomes are eradication, presumed eradication, persistence, presumed persistence or indeterminate. Presumed eradication/persistence based on repeat culture not performed and clinical outcome of cure/failure. Persistence is the causative pathogen is still present from an appropriately obtained specimen at the site of the infection. Indeterminant includes participant lost to follow-up or death after receiving less than 48 hours of study treatment. |
Up to 15 days after start of IV study treatment
|
|
Part B: Counts and proportions of pathogens with each per-pathogen microbiological response at TOC
時間枠：7-14 days after the last study treatment
|
Possible outcomes are eradication, presumed eradication, persistence, presumed persistence or indeterminate. |
7-14 days after the last study treatment
|
|
Part B: Counts and proportions of participants with emergent infections (new infections or superinfections) during the study
時間枠：Through study completion, up to Day 50
|
Superinfection is defined as emergence of a new pathogen associated with worsening signs and symptoms of infection and a requirement for additional antibiotics during the period up to and including EOIV/EOT. New infection is defined as emergence of a new pathogen associated with worsening signs and symptoms of infection and a requirement for additional antibiotics during the period after EOIV/EOT. |
Through study completion, up to Day 50
|
協力者と研究者
出版物と役立つリンク
研究記録日
主要日程の研究
研究開始 (実際)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
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
詳しくは
本研究に関する用語
キーワード
追加の関連 MeSH 用語
その他の研究ID番号
- C3601010
- 2023-507757-15-01 (レジストリ識別子：CTIS (EU))
- 2023 (米国 NIH グラント/契約)
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?
IPD プランの説明
Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.
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
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。