T6A Biomarker for Detection of Bacterial Infection in Newborn Infants (T6ASepsis)
調査の概要
詳細な説明
This bi-center study aims to assess the efficacy of a new biomarker, N6-threonylcarbamoyladenosine (t6A), for the early diagnosis of Early-Onset Sepsis (EOS) in newborns.
Background:
EOS is a significant concern for newborns, especially preterm infants, with a high mortality rate. Current diagnostic methods, like blood cultures, have limitations due to non-specific clinical presentations and slow turnaround times. Existing biomarkers such as C-reactive protein (CRP), procalcitonin (PCT), and Interleukin-6 (IL-6) also have limitations in terms of early detection and specificity.
Objective:
To facilitate the early diagnosis of EOS in newborns at risk for bacterial infection on day one.
Hypotheses:
t6A levels will rapidly increase in newborns with suspected EOS, allowing for early and precise identification from non-EOS neonates.
Circulating t6A will demonstrate higher diagnostic accuracy (positive and negative predictive values) compared to existing biomarkers like PCT, CRP, and IL-6.
Methodology:
This will be an open-label prospective cohort bi-center study conducted at the Private Medical University of Salzburg, Austria together with the Medical University of Wrocław in cooperation with the Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, Vienna Austria
Study Population: Newborn infants requiring blood testing for suspected bacterial infection or routine screening who meet specific inclusion criteria and whose caregivers provide informed consent. Exclusion criteria include refusal to participate or current antibiotic treatment.
Control Group: 50 healthy newborn infants undergoing routine blood testing for other reasons (e.g., thyroid hormone testing).
Data Collection: Blood samples (20 µl using Neoteryx® Microsampling kit) will be collected via heel prick during routine patient care within the first 24 hours of life. Clinical and blood value data will also be collected. Samples will be analyzed for t6A, CBC, CRP, PCT, and IL-6.
Sepsis Confirmation: Bacterial infection will be confirmed using adapted NEO-KISS criteria, which include clinical sepsis and microbiologically confirmed sepsis (with and without coagulase-negative staphylococci).
Timeline: Patient enrollment will occur between February 1, 2026, and January 31, 2029.
Sample Size: A minimum of 210 participants (105 sepsis, 105 control) is planned to achieve adequate statistical power, based on AUC values of t6A and PCT from a previous study.
Data Management: Patient data will be anonymized with three-digit identification numbers. Blood samples will be sent to Pharm-analyt for testing.
Analysis/Statistics: Data will be analyzed using R. Primary outcome (differences in t6A levels) will be assessed using t-tests or Wilcoxon tests. Secondary outcomes (comparison of AUCs for t6A vs. IL-6 and CRP) will use DeLong's test with Bonferroni-Holms correction.
研究の種類
入学 (推定)
連絡先と場所
研究連絡先
- 名前:Lorenz Stana-Hackenberg, MD
- 電話番号:+4357255-57757
- メール:L.stana-hackenberg@salk.at
研究場所
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Salzburg、オーストリア、5020
- 募集
- Paracelsus Medical Private University- University Hospital Salzburg Dept. of Pediatrics and Adolescent Medicine, Division of Neonatology
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コンタクト:
- Lorenz Stana-Hackenberg
- 電話番号:+4357255-57757
- メール:l.stana-hackenberg@salk.at
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副調査官:
- Martin Wald, Assoc. Prof.
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副調査官:
- Maria Strasser, MD
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副調査官:
- Maren Doenhardt
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主任研究者:
- Lorenz Stana-Hackenberg, MD
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Wroclaw、ポーランド、50367
- まだ募集していません
- Wroclaw Medical University
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コンタクト:
- Barbara Królak-Olejnik, Prof.
- 電話番号:+48 71 7331500
- メール:barbara.krolak-olejnik@umw.edu.pl
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主任研究者:
- Barbara Królak-Olejnik, Prof
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参加基準
適格基準
就学可能な年齢
- 子
- 大人
- 高齢者
健康ボランティアの受け入れ
サンプリング方法
調査対象母集団
説明
Inclusion Criteria:
- Newborn infants who require blood testing for screening for bacterial infection OR treating physician suspects bacterial infection in newborn infant
- Signed informed consent form
Exclusion Criteria:
- Refusal to participate in study or not providing written informed consent by caregivers/parents
- Antibiotic treatment of any kind.
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
コホートと介入
グループ/コホート |
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コントロール
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忍耐
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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 |
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Number of participants with Clinical Sepsis
時間枠:12 Hours
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1. Clinical Sepsis (no pathogen detected): All of:
AND at least 2 of:
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12 Hours
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Number of participants with Microbiologically Confirmed Sepsis (excluding coagulase negative staphylococci CNS)
時間枠:12 Hours
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Microbiologically Confirmed Sepsis (excluding coagulase negative staphylococci CNS) AND at least 2 of:
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12 Hours
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Number of participants with Microbiologically confirmed Sepsis with CNS
時間枠:12 Hours
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Microbiologically confirmed sepsis with CNS as the sole pathogen One lab value (without other plausible cause)
AND at least 2 of:
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12 Hours
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協力者と研究者
出版物と役立つリンク
一般刊行物
- Mackay CA, Nathan EA, Porter MC, Shrestha D, Kohan R, Strunk T. Epidemiology and Outcomes of Neonatal Sepsis: Experience from a Tertiary Australian NICU. Neonatology. 2024;121(6):703-714. doi: 10.1159/000539174. Epub 2024 Jun 18.
- Osuchowski MF, Adamik B, Gozdzik W, Skalec T, Mascher D, Redl H, Zipperle J, Fritsch G, Voelckel W, Winkler MS, Moerer O, Schutz H, Mascher H. The novel biomarker t6A accurately identified septic patients at admission but failed to predict outcome. Crit Care. 2025 Mar 20;29(1):129. doi: 10.1186/s13054-025-05354-2. No abstract available.
- Zhou M, Cheng S, Yu J, Lu Q. Interleukin-8 for diagnosis of neonatal sepsis: a meta-analysis. PLoS One. 2015 May 21;10(5):e0127170. doi: 10.1371/journal.pone.0127170. eCollection 2015.
- Al Gharaibeh FN, Lahni P, Alder MN, Wong HR. Biomarkers estimating baseline mortality risk for neonatal sepsis: nPERSEVERE: neonate-specific sepsis biomarker risk model. Pediatr Res. 2023 Oct;94(4):1451-1456. doi: 10.1038/s41390-022-02414-z. Epub 2022 Dec 13.
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
追加の関連 MeSH 用語
その他の研究ID番号
- T6A_NewbornSepsis_V6
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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