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Efficacy and Safety of SP16 in Preventing Acute Kidney Injury in At-risk Subjects With Chronic Kidney Disease Undergoing Elective Cardiac Surgery Using the Heart-lung-machine (EASE-AKI)

22. Juni 2026 aktualisiert von: University of Erlangen-Nürnberg Medical School

Efficacy and Safety of SP16 in Preventing Acute Kidney Injury in At-risk Subjects With Chronic Kidney Disease Undergoing Elective Cardiac Surgery Using the Heart-lung-machine: A Prospective, Randomized, Double-blind, Placebo-controlled Clinical Trial (EASE-AKI)

This clinical study investigates the safety and potential effectiveness of the investigational drug SP16 in preventing acute kidney injury in patients with pre-existing chronic kidney disease who are undergoing cardiac surgery involving the use of cardiopulmonary bypass (heart-lung machine).

SP16 is an investigational medicinal product that has not yet been approved for clinical use. To date, it has been studied in 28 individuals. The sponsor aims to evaluate whether SP16 can safely reduce or prevent kidney damage associated with the inflammatory and ischemia-reperfusion processes that may occur during cardiac surgery with cardiopulmonary bypass.

Participation in the study extends over a period of slightly more than five months. Screening procedures are performed within approximately seven weeks to two days before the scheduled surgery to determine eligibility for participation. During the hospitalization for cardiac surgery, which is expected to last approximately 10 days, a total of 11 study visits are conducted. Follow-up assessments include a telephone contact approximately one month after hospital discharge and a final on-site study visit approximately three months after discharge.

This is a randomized, double-blind, placebo-controlled clinical trial. Participants are randomly assigned to receive either SP16 or a placebo, which contains no active ingredient. Neither the participants nor the investigators know which treatment has been assigned during the study period.

Based on previous preclinical and early clinical findings, SP16 may have the potential to reduce or mitigate kidney injury caused by the use of the heart-lung machine during cardiac surgery. However, since the efficacy of SP16 has not yet been proven, no clinical benefit can be guaranteed. Participants receiving placebo are not expected to derive a direct therapeutic benefit from study treatment.

Studienübersicht

Status

Noch keine Rekrutierung

Bedingungen

Intervention / Behandlung

Studientyp

Interventionell

Einschreibung (Geschätzt)

120

Phase

  • Phase 2

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studieren Sie die Kontaktsicherung

Studienorte

    • Bavaria
      • Erlangen, Bavaria, Deutschland, 91054
        • Universitätsklinikum Erlangen
        • Kontakt:
        • Kontakt:
        • Hauptermittler:
          • Mario Schiffer

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Erwachsene
  • Älterer Erwachsener

Akzeptiert gesunde Freiwillige

Nein

Beschreibung

Inclusion Criteria:

  • Individual aged ≥18 years.
  • Male or female.
  • Scheduled for CABG OR aortic valve surgery (aortic valve replacement or repair alone, with or without aortic root repair) OR mitral valve surgery OR aortic/mitral valve surgery combined with CABG.
  • Use of the CPB during surgical intervention expected.
  • Written informed consent obtained from the participant.
  • Understanding of study procedures and willingness to abide by all procedures during the course of the clinical trial.
  • CKD Stage 2-3b with eGFR ≤90 and ≥30 ml/min/1.73 m2 (according to 2021 CKD-EPI equation) known for ≥ 3 months prior to enrollment
  • BMI ≥19 kg/m² to ≤40 kg/m².
  • Contraceptive measures:

Female participants must fulfil at least one of the following criteria of highly effective contraception (according to CTFG recommendations v1.2) during and up to 3 months after the end of study participation:

  • Menopause (at least 12 months of natural amenorrhoea or 6 months of amenorrhoea with serum FSH >40 mU/ml) OR
  • Condition after bilateral ovariectomy or hysterectomy for at least 6 weeks prior to the screening appointment (Visit 1a, Day 54 to -2) OR
  • Regular, correct and reliable use of a contraceptive method with an error rate ≤1% per year:

    1. Inhibition of ovulation by estrogen and progesterone combination preparations (oral, intravaginal, or transdermal) or
    2. Inhibition of ovulation by progesterone monopreparations (oral, per injectionem [depot injections], or implant) or
    3. Intrauterine device, hormone coil OR
  • Bilateral tubal ligation OR
  • Vasectomy of all partners OR
  • Sexual abstinence.

Male participants must fulfill at least one of the following contraceptive criteria during and up to 3 months after the end of participation in the study:

  • Vasectomy OR
  • Regular, correct, and reliable use of condoms

Exclusion Criteria:

  • CKD stages 4-5 with eGFR <30 ml/min/1.73 m2 pre-surgery as determined by CKD EPI.
  • Previous cardiac surgery.
  • Person has a kidney transplant or another solid organ transplant.
  • Person is scheduled for intermittent or continuous renal replacement therapy (dialysis).
  • Known diagnosis of dementia or other clinical signs of mental illness that will prevent full understanding.
  • Known diagnosis of severe COPD (Gold 3) and/or FEV1 < 1 l/s.
  • Heart failure with severity of symptoms according to NYHA IV.
  • Heart failure with impaired cardiac pump function (LVEF <35%).
  • Acute onset or ongoing sepsis - sepsis is defined as the presence of a confirmed or putative infection, along with a dysregulated systemic immune reaction leading to organ dysfunction.
  • Clinical signs of a currently active infection including endocarditis requiring antibiotic treatment.
  • Clinical signs of an acute viral infection.
  • Serious underlying disease(s) or very poor general medical condition, so that in the investigator's judgment the person is not expected to survive ICU or hospital stay.
  • Patient who has an active (requiring treatment) malignancy or history within 5 years prior to enrollment in the study, of solid, metastatic or hematologic malignancy with the exception of basal or squamous cell carcinoma of the skin that has been removed.
  • Administration of iodinated contrast agent within 24 hours prior to cardiac surgery
  • Recent (discontinued in the last 14 days before V1a or V1b) or current treatment with immunosuppressive drugs, including, but not limited to, high dose corticosteroids [> 1 mg/kg of prednisone equivalent], tumour necrosis factor alpha blockers, or ciclosporin.
  • Current regular use of anti inflammatory drugs such as NSAID, with discontinuation not possible. (however, if these medications are discontinued in the last 10 days before V2, the participant is eligible to participate). ASA up to 100 mg per day is allowed.
  • Systemic corticosteroid therapy (any dose).
  • Known active chronic inflammatory disease (including, but not limited to, rheumatoid arthritis or systemic lupus erythematosus).
  • Known allergy to SP16 or to other ingredients of the IMP.
  • Person who is not willing to use highly effective contraceptive measures (according to CTFG recommendations v1.2).
  • Pregnant women.
  • Breastfeeding women.
  • Current participation in another interventional clinical study (register studies or non-interventional, observational studies excluded).
  • Employee or direct relative of an employee of the study site, the CRO, or the Sponsor.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Verhütung
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Vervierfachen

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Placebo-Komparator: Placebo
In the placebo group, placebo (dextrose 5%) is injected subcutaneously at the same timepoints as the IMP, each time slowly (over about 30 seconds) at a fixed volume of 2 ml each at two different injection sites.
Aktiver Komparator: SP16-3M

The IMP is injected subcutaneously at two different time points. The first administration will take place pre-surgically, in the area of the operating theatre, when the participant is under anesthesia. The second administration will be performed post-surgically, 9±1 h after the first administration.

At each of the two injection timepoints, a fixed dose of 6 mg SP16-3M is administered by two s.c. injections of 2 ml (concentration 1.5 mg/ml) each at two different injection sites.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Frequency of adverse events (AEs) and severe adverse events (SAEs)
Zeitfenster: Within 72 hours after index surgery
Frequency of adverse events (AEs) and severe adverse events (SAEs) will be assessed within 72 hours after index surgery and SP16 administration.
Within 72 hours after index surgery
Frequency of Cardiac Surgery Associated Acute Kidney Injury (CSA-AKI)
Zeitfenster: Within 7 days after index surgery

Number of participants who develop CSA-AKI during hospital stay defined by Kidney Disease: Improving Global Outcomes [organization] (KDIGO) stage 1 or higher. If at least one of the following criteria is observed in the interval since end of index surgery and the 7-day assessment, a participant will be considered to have developed CSA-AKI:

  • Increase in Serum Creatinine (SCr) by ≥0.3 mg/dl (>26.5 μmol/l) within 168±4 hours after index surgery (defined as the period since cardiopulmonary bypass [CPB] was terminated and systemic circulation resumed).
  • Increase in SCr to ≥1.5 times the baseline value, using the highest SCr value within 168±4 hours after index surgery.
  • Decrease in urine output <0.5 ml/kg/h for more than 6 hours within 168±4 h after index surgery
Within 7 days after index surgery

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Duration of post-surgical CSA-AKI
Zeitfenster: From the timepount of index surgery to the end of surveillance 90±7 days after index surgery
Number of days after post-surgical onset of CSA-AKI until re-achievement of baseline level of serum creatinine (defined as a return of creatinine to <0.3 mg/dl above baseline value) or discharge from hospital, whichever comes first.
From the timepount of index surgery to the end of surveillance 90±7 days after index surgery
Necessity of renal replacement therapy (RRT)
Zeitfenster: From the timepoint of index surgery to the end of surveillance 90±7 days after index surgery
The frequency of RRT post-surgery will be recorded.
From the timepoint of index surgery to the end of surveillance 90±7 days after index surgery
Duration of renal replacement therapy (RRT)
Zeitfenster: From the timepoint of index surgery to the end of surveillance 90±7 days after index surgery
Duration of RRT measured by starting date [yyyy-mmm-dd] and end date [yyyy-mmm-dd]
From the timepoint of index surgery to the end of surveillance 90±7 days after index surgery
Cardiac function on Day 90±7 days after cardiac index surgery
Zeitfenster: At the end of surveillance 90±7 days after index surgery
Cardiac function on Day 90±7 days after cardiac index surgery compared to pre surgical assessment (Visit 1) assessed by transthoracic echocardiography (TTE).
At the end of surveillance 90±7 days after index surgery
Cardiac function on Day 0 post-surgery (Visit 3), Day 1, and on Day 5 after index surgery
Zeitfenster: Within 5 days after index surgery
Cardiac function on Day 0 post-surgery (Visit 3), Day 1, and on Day 5 after index surgery assessed by point of care echocardiography (TTE) compared to pre-surgical assessment (Visit 1).
Within 5 days after index surgery
Concentration of NT-proBNP (serum)
Zeitfenster: From enrollment to the end of surveillance 90±7 days after index surgery
NT-proBNP serum concentration on Day 1, Day 7, and Day 90±7 after index surgery compared to pre-surgical assessment on Day 0 (Baseline; Visit 2).
From enrollment to the end of surveillance 90±7 days after index surgery
Central venous oxygen saturation (ScvO2) (blood gas analysis)
Zeitfenster: Within 7 days after surgery
Central venous oxygen saturation (ScvO2) on Day 1, Day 5 and Day 7 after index surgery compared to pre-surgical assessment on Day 0 (Baseline; Visit 2).
Within 7 days after surgery
Frequency of all-cause death
Zeitfenster: From the timepopint of index surgery to the end of surveillance 90±7 days after index surgery
Frequency of all-cause death within 90±7 days (3 months) after cardiac index surgery.
From the timepopint of index surgery to the end of surveillance 90±7 days after index surgery
Frequency of sustained impaired renal function
Zeitfenster: From the timepopint of index surgery to the end of surveillance 90±7 days after index surgery
Frequency of sustained impaired renal function defined as ≥25% increase in Serum Creatinine at Day 90±7 compared to baseline.
From the timepopint of index surgery to the end of surveillance 90±7 days after index surgery
Frequency of sustained impaired renal function requiring at least one dialysis
Zeitfenster: From enrollment to the end of surveillance 90±7 days after index surgery.
Frequency of sustained impaired renal function requiring at least one dialysis during the post-surgical interval until Day 90±7 (end of observation period).
From enrollment to the end of surveillance 90±7 days after index surgery.
Frequency of AE and SAE within 7 days after cardiac index surgery.
Zeitfenster: Within 7 days after index surgery
The incidence of adverse events (AEs) and severe adverse events (SAEs) will be assessed in detail in addition to the primary outcome measure within 7 days after cardiac index surgery.
Within 7 days after index surgery
Frequency of AE and SAE during the observation period.
Zeitfenster: From enrollment to the end of surveillance after 90±7 days after index surgery.
Frequency of AE and SAE during the entire observation period.
From enrollment to the end of surveillance after 90±7 days after index surgery.
Number of participants with at least one SAE
Zeitfenster: From the first timepoint of SP16 administration to the end of surveillance 90±7 days after index surgery
Number of participants with at least one SAE during the observation period.
From the first timepoint of SP16 administration to the end of surveillance 90±7 days after index surgery
Severity of post-surgical CSA-AKI
Zeitfenster: Within 7 days after index surgery

Highest CSA-AKI stage value according to the stage classification of the KDIGO-AKI (https://kdigo.org) based on serum creatinine level (mg/dl) and urinary output (ml/kg/hour) in the 7-day period after the index surgery:

Stage 1: serum creatinine level 1.5 to 1.9 times baseline within 7 d OR

≥ 0.3 mg/dl (≥ 26.5 μmol/l) increase within 48 h; urine output < 0.5 ml/kg/h for 6 h Stage 2: serum creatinine level 2.0 - 2.9 times baseline within 7 d; urine output < 0.5 ml/kg/h for ≥ 12 h Stage 3: serum creatinine level 3.0 times baseline OR increase to ≥ 4.0 mg/dl OR Initiation of renal replacement therapy within 7 d; urine output < 0.3 ml/kg/h for ≥ 24 h OR anuria for ≥ 12 h

Within 7 days after index surgery

Andere Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Time [hours] of the Intensive Care Unit (ICU) stay.
Zeitfenster: From enrollment to the end of surveillance after 90±7 days after index surgery.
From enrollment to the end of surveillance after 90±7 days after index surgery.
Concentration of Cystatine C (serum)
Zeitfenster: Before and within 7 days after index surgery
Cystatine C concentration (mg/l) at defined post-surgical time points within 7 days after index surgery compared to pre-surgical assessment at baseline (Visit 2).
Before and within 7 days after index surgery
Concentration of NGAL (urine)
Zeitfenster: Before and within 7 days after index surgery
urine-NGAL concentration (ng/ml) at defined post-surgical time points within 7 days after index surgery compared to pre-surgical assessment at baseline (Visit 2).
Before and within 7 days after index surgery
Concentration of IL-6 (serum)
Zeitfenster: Before and within 7 days after index surgery
IL-6 concentration (pg/ml) at defined post-surgical time points within 7 days after index surgery compared to pre-surgical assessment at baseline (Visit 2).
Before and within 7 days after index surgery
Concentration of IL-10 (serum)
Zeitfenster: Before and within 7 days after index surgery
IL-10 concentration (pg/ml) at defined post-surgical time points within 7 days after index surgery compared to pre-surgical assessment at baseline (Visit 2).
Before and within 7 days after index surgery
Concentration of TIMP2 (urine)
Zeitfenster: Before and within 7 days after index surgery
TIMP2 concentration (pg/ml) at defined post-surgical time points within 7 days after index surgery compared to pre-surgical assessment at baseline (Visit 2).
Before and within 7 days after index surgery
Concentration of IGFBP7 (urine)
Zeitfenster: Before and within 7 days after index surgery
IGFBP7 concentration (pg/ml) at defined post-surgical time points within 7 days after index surgery compared to pre-surgical assessment at baseline (Visit 2).
Before and within 7 days after index surgery

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Mitarbeiter

Publikationen und hilfreiche Links

Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Geschätzt)

18. Juni 2026

Primärer Abschluss (Geschätzt)

1. Mai 2029

Studienabschluss (Geschätzt)

1. Mai 2029

Studienanmeldedaten

Zuerst eingereicht

21. Mai 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

16. Juni 2026

Zuerst gepostet (Tatsächlich)

22. Juni 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

25. Juni 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

22. Juni 2026

Zuletzt verifiziert

1. Februar 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Schlüsselwörter

Andere Studien-ID-Nummern

  • 0740
  • 2025-522491-89-00 (Ctis)

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Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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