M6229
DrugContinuous intravenous infusion of M6229, a low-anticoagulant fraction of heparin. Dose-escalation is based on a modified continual reassessment method (mCRM) including escalation with overdose control (EWOC).
NCT Number: NCT05208112
Sepsis is a life-threatening organ dysfunction caused by a dysregulated host response to infection. Mortality is high and survivors frequently suffer from long-term sequelae. Extracellular histones have been identified as essential mediators in the pathogenesis of sepsis and septic shock. These toxic molecules are released by damaged cells in response to infection and high extracellular levels can induce tissue injury and multiple organ dysfunction syndrome. Extracellular histones can be neutralized by complexation with the new candidate drug called M6229, a non-anticoagulant heparin, allowing the use of elevated dose levels relative to regular unfractionated heparin. This project aims at the roll-out of a first-in-man clinical study in sepsis patients evaluating the safety, tolerability, pharmacokinetics and pharmacodynamic effects of intravenously administered M6229 in subjects suffering from sepsis.
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Notify Me18 year and older
All sexes
Interventional
Phase 1
Maastricht UMC+, Maastricht, Limburg, Netherlands
Healthy volunteers accepted: No
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
Organ dysfunction is defined by 1 of the following:
a. Increase in SOFA score of ≥2. i. The baseline SOFA score can be assumed to be zero in patients not known to have pre-existing organ dysfunction.
b. Acute kidney injury i. Defined as eGFR < 15 mL/min. c. Acute respiratory distress syndrome i. Defined by the Berlin criteria. d. The need of mechanical ventilation. e. Alteration in mental status.
Exclusion criteria
a. A woman is considered to be of childbearing potential under the age of 60 years, unless surgically sterile.
a. Clinical: i. Active bleeding; ii. Head trauma; iii. Intracranial surgery or stroke in the past 3 months; iv. History of intracerebral arteriovenous malformation, cerebral aneurysm or mass lesions of the central nervous system; v. Cerebral haemorrhage; vi. History of a bleeding diatheses; vii. Gastrointestinal bleeding in the past 6 weeks; viii. Presence of an epidural or spinal catheter; ix. Contraindication for IV therapeutic UFH. b. Laboratory: i. Platelet count <50 x109/L; ii. INR >2.0; iii. Baseline aPTT ≥45 seconds prior to enrolment, 1.5x upper limit of normal (ULN).
Continuous intravenous infusion of M6229, a low-anticoagulant fraction of heparin. Dose-escalation is based on a modified continual reassessment method (mCRM) including escalation with overdose control (EWOC).
Time frame: Up to 72 hours after start infusion
Anti-coagulation effects of M6229 determined by a change in aPTT at different time points during and after infusion of M6229.
Time frame: Up to 72 hours after start infusion
Peak plasma concentration of M6229 in plasma
Time frame: Up to 72 hours after start infusion
Steady state concentration of M6229 in plasma
Time frame: Up to 72 hours after start infusion
Time to peak concentration of M6229 in plasma
Time frame: Up to 72 hours after start infusion
Area under the plasma concentration versus time curve of M6229
Time frame: Up to 72 hours after start infusion
Clearance of M6229
Time frame: Up to 72 hours after start infusion
Terminal half-life is the time required for the plasma concentration of M6229 to fall by 50% during the terminal phase
Time frame: Up to 72 hours after start infusion
Volume of distribution of M6229
Time frame: Up to 72 hours after start infusion
Change in histone plasma levels before and at different time-points after M6229 administration
Time frame: Up to 72 hours after start infusion
Excessive anti-coagulation effects are:
Time frame: Up to 72 hours after start infusion
Adverse reactions that are considered definitely and probably related to M6229 as specified in the protocol.
Time frame: Up to 24 hours after start infusion
Changes in ECGs QTc that are considered definitely and probably related to M6229
Time frame: Up to 24 hours after start infusion
Urine pharmacokinetic parameters of M6229 (amount of M6229 excreted in urine)
Time frame: Up to 72 hours after start infusion
Change in plasma levels of biomarkers of inflammation, coagulation and fibrinolysis (e.g. D-dimer, IL-6, IL-8) before and at different time-points after M6229 administration.
Time frame: Up to 72 hours after start infusion
Change in plasma levels of biomarkers of inflammation, coagulation and fibrinolysis (e.g. D-dimer, IL-6, IL-8) before and at different time-points after M6229 administration.
Time frame: Up to 72 hours after start infusion
Besides histone plasma levels, the investigators will also measure other biomarkers of inflammation, coagulation and fibrinolysis (e.g. D-dimer, IL-6, IL-8).
Time frame: 30 days
SOFA scores will be reported. Moreover, the investigators will compare these data with historic controls. For this, data will be used from a subset of patients included in a previously conducted study conducted in two tertiary teaching hospitals in the Netherlands named "Molecular Diagnosis and Risk Stratification of Sepsis" (MARS) study. The MARS study was a prospective observational study performed between January 2011 and January 2014 in the ICUs of the Amsterdam UMC, location AMC and UMC Utrecht.
Time frame: 30 days
Ventilator free-days and time on mechanical ventilation. Data will be compared with historic controls from the MARS cohort.
Time frame: 30 days
Renal replacement therapy free-days and time on renal replacement therapy. Data will be compared with historic controls from the MARS cohort.
Time frame: 30 days
Vasopressor free-days and time on vasopressors. Data will be compared with historic controls from the MARS cohort.
Time frame: 30 days
ICU and hospital length of stays. Data will be compared with historic controls from the MARS cohort.
Time frame: 30 days
ICU and hospital mortality. Data will be compared with historic controls from the MARS cohort.
A.P.J. Vlaar
Other
A Phase I Trial Evaluating the Safety, Tolerability and Pharmacokinetics of Intravenously Administered M6229 in Critically Ill Sepsis Patients - "HistoSeps"
Acronym: HistoSeps
OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.
View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.
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