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Mechanistic Assessment of Norepinephrine Therapy vs. Angiotensin-II in Septic Shock

Mechanistic Assessment of Norepinephrine TheRapy vs. Angiotensin-II in Septic Shock (MANTRA) Grant Submission- Dysfunctional Renin-Angiotensin System in Septic Shock

Status
Not yet recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06746753
Acronym
MANTRA
Enrollment
78
Registered
2024-12-24
Start date
2026-09-01
Completion date
2028-10-07
Last updated
2026-07-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Septic Shock

Keywords

sepsis, kidney disease, intensive care

Brief summary

Despite best therapy efforts, sepsis and septic shock are associated with mortality rates of up to 40%. This clinical trial will determine the benefit of exogenous Angiotensin II versus norepinephrine (conventional care) treatment in septic shock patients. This trial will determine whether there are better predictors of septic shock severity. This approach may inform more appropriate treatment regimens and improve outcomes for these patients.

Detailed description

This study will determine whether normalization of renin-angiotensin-aldosterone system (RAAS) signaling in sepsis occurs more rapidly with treatment with Angiotensin II compared with conventional vasopressors. Trial samples will be used to identify the best RAAS biomarker predictor of treatment response via in-depth longitudinal analysis of RAAS component and to determine the extent and mechanisms of Angiotensin II impact on innate immune function during sepsis. Successful accomplishment of our aims will provide the capability to improve endotyping of septic patients by establishing the most precise and robust measurement of renin (and RAAS dysfunction). This work will improve staging and clinical precision and will facilitate the criteria for therapeutic development of targets in septic shock.

Interventions

DRUGAngiotensin II

randomized to receive Angiotensin II continuous infusion for up to 48 hours

DRUGNorepinephrine

randomized to receive Norepinephrine continuous infusion for up to 48 hours

Sponsors

Wake Forest University Health Sciences
Lead SponsorOTHER
National Heart, Lung, and Blood Institute (NHLBI)
CollaboratorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

\- The presence of septic shock, defined by sepsis-3 criteria: 1-adult patients (18 years or older) with septic shock, defined by SEPSIS-3 criteria: a) suspected or known infection, b) hypotension requiring vasopressors, and c) lactate \>2mmol/L 2-receiving either norepinephrine or phenylephrine with or without additional vasopressor support 3- total norepinephrine equivalent dose (NED) ≥0.1 mcg/kg/min and ≤0.5 mcg/kg/min, to maintain a MAP of at least 65 mmHg, is required for randomization 4-ability to consent and randomize within 24 hrs of first reaching NED threshold and within 48 hrs of hospital arrival

Exclusion criteria

* Age \<18 years * Prisoners * Pregnant women * Patients for whom urgent surgery is anticipated * Leukocyte count \<1,000 cells/μL * Absolute monocyte count \<200 cells/μL * Bone marrow transplant within the past 30 days * Patients that will be withdrawing aggressive resuscitation, including withdraw of vasopressor support * transfer from outside ICU * history of liver cirrhosis with Child-Pugh score ≥6

Design outcomes

Primary

MeasureTime frameDescription
Mean Renin Level - Hour 24Hour 24Mean plasma renin level (PRA) as a measure of renin-angiotensin-aldosterone system restoration. Normal levels of active renin \<1.1 pM (40 pg/mL). A level higher than normal can indicate level of shock.

Secondary

MeasureTime frameDescription
Norepinephrine Equivalent Dose Requirement (NEE)Baseline, Hour 3, Hour 12, Hour 24, Hour 48, Hour 72NEE indicates severity of shock and need for vasopressors to support blood pressure. Normal range is 0.0-1.0 mcg/kg/min. Levels above normal indicate shock and need for vasopressors. The higher the level the more severe.
Number of Days Without Renal Replacement TherapyDay 28Number of days without renal replacement therapy
Number of Days of Vasopressor UseDay 28Number of days without vasopressor use
Number of Days Without Mechanical VentilationDay 28Number of days without invasive mechanical ventilation
Number of Hours Vasopressor FreeHour 72Number of hours without requiring vasopressors during first 72 hours after randomization
Number of Hours AliveHour 72Number of hours alive during first 72 hours after randomization
Number of Days AliveDay 28Number of days alive
Mean Renin LevelBaseline, Hour 3, Hour 12, Hour 48, Hour 72Mean renin level as a measure of renin-angiotensin-aldosterone system restoration. Normal levels of active renin \<1.1 pM (40 pg/mL). A level higher than normal can indicate level of shock.
Sequential Organ Failure Assessment (SOFA) ScoreBaseline, Hour 24, Hour 48SOFA score indicates the number and severity of failed organs and provides prognostic information on in-hospital survival in patients with severe sepsis and septic shock. Score above 0 indicates organ failure. The higher the score the more failed organs and degree of organ failure.
APACHE-II ScoreBaseline, Hour 24, Hour 48APACHE-II score assesses severity of illness in critically ill patients and indicates risk of mortality. Score range 0-10 low risk of mortality, 11-20 moderate risk, 21-30 high risk, 31 or above very high risk.
Lactate LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48, Hour 72Lactate is an indicator of sepsis severity. Levels 2.3-20 mmol/L indicate sepsis. The higher the score the more severe.
Kidney Disease Improving Global Outcomes (KDIGO) StageBaseline, Hour 24, Hour 48Participant stage of acute kidney injury will be determined as follows Stage 1: Increase in serum creatinine ≥ 0.3 mg/dL in 48 hours or 1.5 to 1.9 multiplied by baseline (in 7 days); Stage 2: 2.0 to 2.9 multiplied by baseline serum creatinine; Stage 3: 3.0 or more multiplied by baseline; increase in serum creatinine ≥ 4.0 mg/dL; or beginning of renal replacement therapy regardless of a previous KDIGO stage. Higher stage indicates higher severity of renal failure.
Creatinine LevelBaseline, Hour 24, Hour 48Creatinine level is an indicator of renal disease severity. Normal range for women 0.7-1.3 mg/dL, men 0.6-1.1 mg/dL. Levels higher than normal indicate renal disease. The higher the level the more severe.
BUN LevelBaseline, Hour 24, Hour 48BUN level is an indicator of renal disease severity. Levels above 24 mg/dL indicate renal disease. The higher the level the more severe.
Bicarbonate LevelBaseline, Hour 24, Hour 48Bicarbonate level is an indicator of acid base disturbance severity. Normal range is 22-29 mEq/L. Levels above or below the normal range indicate acid base disturbance. The higher the score the more severe.
Number of Participants with Acute Respiratory Distress Syndrome (ARDS)Baseline, Hour 24, Hour 48Number of participants with ARDS
SpO2/FiO2 Ratio LevelBaseline, Hour 24, Hour 48SpO2/FiO2 ratio level is an indicator of lung injury severity. Mild severity 315-235, moderate severity 148-235, severe \<148.
PaO2/FiO2 Ratio LevelBaseline, Hour 24, Hour 48PaO2/FiO2 ratio level is an indicator of lung injury severity. Mild severity 201-300 mmHg; moderate severity 101-200 mmHg, severe ≤ 100 mmHg.
Serum Aspartate Aminotransferases LevelBaseline, Hour 24, Hour 48Serum aspartate aminotransferases level is an indicator of liver injury severity. Normal range 8-48 U/L. Levels above normal indicate livery injury. The higher the level the more severe.
Alanine Aminotransferases LevelBaseline, Hour 24, Hour 48Alanine aminotransferases level is indicator of liver injury severity. Normal range 7-55 U/L. Levels higher than normal indicate liver injury. The higher the level the more severe.
Alkaline Phosphatase LevelBaseline, Hour 24, Hour 48Alkaline phosphatase level is an indicator of liver injury severity. Normal range 40-129 U/L. Levels higher than normal indicate liver injury. The higher the level the more severe.
Bilirubin LevelBaseline, Hour 24, Hour 48Bilirubin level is an indicator of liver injury severity. Normal range 0.1-1.2 mg/dL. Levels higher than normal indicate liver injury. The higher the liver the more severe.
Albumin LevelBaseline, Hour 24, Hour 48Albumin level is an indicator of liver injury severity. Normal range 3.5-5.0 g/dL. Levels higher than normal indicate liver injury. The higher the level the more severe.
Troponin I LevelBaseline, Hour 24, Hour 48Troponin I level is an indicator of cardiac myocyte injury. Normal range 0-0.04 ng/mL. Levels higher than normal indicate cardiac myocyte injury. The higher the level the more severe.
Troponin T LevelBaseline, Hour 24, Hour 48Troponin T level is an indicator of cardiac myocyte injury. Normal range 0-0.01 ng/mL. Levels higher than normal indicate cardiac myocyte injury. The higher the level the more severe.
Neutrophil Gelatinase-Associated Lipocalin Serum LevelBaseline, Hour 24, Hour 48Neutrophil gelatinase-associated lipocalin serum level indicates risk of kidney injury. Normal serum level is \<10 mcg/L. Levels higher than normal indicate risk of kidney injury.
Neutrophil Gelatinase-Associated Lipocalin Urine LevelBaseline, Hour 24, Hour 48Neutrophil gelatinase-associated lipocalin urine level indicates risk of kidney injury. Normal urine level is ≤50 ng/ml. Risk of kidney disease: Low risk 51-149 ng/ml, moderate risk 150-299 ng/ml, and high risk ≥300 ng/ml.
Kidney Injury Molecule-I Urine LevelBaseline, Hour 24, Hour 48Kidney injury molecule-I urine level is used to detect kidney injury. Normal level is \<1 ng/ml. Levels higher than normal indicate ischemic kidney injury.
Kidney Injury Molecule-I Blood LevelBaseline, Hour 24, Hour 48Kidney injury molecule-I blood level is used to detect kidney injury. Normal levels 0.42-2.0 ng/ml. Levels higher than normal indicate kidney injury. The higher the level the more severe.
Soluble Receptor for Advanced Glycation End Product LevelBaseline, Hour 24, Hour 48Soluble receptor for advanced glycation end product level is a marker of aging, hypertension and diabetes. Normal range is 647-1248 pg/ml. Levels higher than normal indicate risk for hypertension and diabetes.
Angiopoietin-2 LevelBaseline, Hour 24, Hour 48, Hour 72Angiopoietin-2 level is a marker of inflammation. Normal range is 1434-4141 pg/mL. Levels higher than normal indicate inflammation.
Syndecan-1 LevelBaseline, Hour 24, Hour 48Syndecan-1 level is a marker of disease severity in critically ill patients. Levels \>20ng/ml indicate severe disease. The higher the level the more severe.
Protein C LevelBaseline, Hour 24, Hour 48Protein C level is an indicator of inflammation and thrombotic state. Normal level is \<8 mg/L. Levels higher than normal indicate inflammation and thrombotic state. The higher the level the more severe.
Neuron-Specific Enolase LevelBaseline, Hour 24, Hour 48Neuron-specific enolase level is an indicator of brain injury. Normal range is 16-17 ug/L. Levels higher than normal indicate brain injury. The higher the level the more severe.
S-100β LevelBaseline, Hour 24, Hour 48S-100β level is indicator of brain injury. Normal range is 0.02-0.05 μg/dL. Levels higher than normal indicate brain injury. The higher the number the more severe.
TNFα LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48TNFα level is an indicator of systemic inflammation. Normal levels are 75 +/- 15 pg/ml. Levels higher than normal indicate inflammation. The higher the score the more severe.
sTNFR1 LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48sTNFR1 level is an indicator of systemic inflammation. Normal levels are \<2.4 ng/ml. Levels higher than normal indicate inflammation. The higher the score the more severe.
IL-6 LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48IL-6 level is an indicator of systemic inflammation. Normal range is 0-43.5 pg/ml. Levels higher than normal indicate inflammation. The higher the score the more severe.
sIL-6R LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48sIL-6R level is an indicator of systemic inflammation. Normal range is 14-46 pg/ml. Levels higher than normal indicate inflammation. The higher the score the more severe.
IL-8 LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48IL-8 level is an indicator of systemic inflammation. Normal range is 0-66.1 pg/ml. Levels higher than normal indicate inflammation. The higher the score the more severe.
IL-1β LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48IL-1β level is an indicator of systemic inflammation. Normal range is 0.5-12 pg/ml. Levels higher than normal indicate inflammation. The higher the score the more severe.
Interferon Gamma LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48IFN-ɣ level is an indicator of systemic inflammation. Normal range is 0-8.6 pg/ml. Levels higher than normal indicate inflammation. The higher the score the more severe.
IL12p70 LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48IL12p70 level is an indicator of systemic inflammation. Normal range is 0-1.9 pg/ml. Levels higher than normal indicate inflammation. The higher the score the more severe.
IL-17 LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48IL-17 level is an indicator of systemic inflammation. Normal range is 0-1.4 pg/ml. Levels higher than normal indicate inflammation. The higher the score the more severe.
MIP1-alpha LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48MIP1-αlpha level is an indicator of systemic inflammation. Normal range is 0-208 pg/ml. Levels higher than normal indicate inflammation. The higher the score the more severe.
MIP1-beta LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48MIP1-beta level is an indicator of systemic inflammation. Normal range is 59-647 pg/ml. Levels higher than normal indicate inflammation. The higher the score the more severe.
IP-10 LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48IP-10 level is an indicator of systemic inflammation. Normal range is 4.8-9.8 pg/ml. Levels higher than normal indicate inflammation. The higher the score the more severe.
IL-10 LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48IL-10 level is an indicator of systemic inflammation. Normal range is 4.8-9.8 pg/ml. Levels higher than normal indicate inflammation. The higher the score the more severe.
IL-1RA LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48IL-1RA level is an indicator of systemic inflammation. Normal range is 100-300 ng/ml. Levels higher than normal indicate inflammation. The higher the score the more severe.
IL-12p40 LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48IL-12p40 level is an indicator of systemic inflammation. Normal range is 0.064-1000 pg/ml. Levels higher than normal indicate inflammation. The higher the score the more severe.
C reactive protein (CRP) LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48CRP level is an indicator of systemic inflammation. Normal range is 0-10 mg/dl. Levels higher than normal indicate inflammation. The higher the score the more severe.
Procalcitonin LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48Procalcitonin level is an indicator of systemic inflammation. Levels \>0.25 mg/ml indicate inflammation and infection. The higher the score the more severe.
Platelet LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48Platelet level is an indicator of systemic inflammation and thrombocytosis. Normal range is 150000-450000 platelets per microliter. Levels higher than normal indicate inflammation and thrombocytosis. The higher the score the more severe.
Absolute Neutrophil Count LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48Absolute neutrophil count level is an indicator of inflammation and infection/sepsis. Normal range is 2500-7000 neutrophils per microliter. Levels higher than normal indicate inflammation, infection/sepsis. The higher the score the more severe.
Absolute Granulocyte Count LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48Absolute granulocyte count level is an indicator of inflammation and infection/sepsis. Normal range is 1500-8500 granulocytes per microliter. Levels higher than normal indicate inflammation, infection/sepsis. The higher the score the more severe.
Absolute Lymphocytes Count LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48Absolute lymphocyte count level is an indicator of inflammation and infection/sepsis. Normal range is 1000-4800 granulocytes per microliter. Levels higher than normal indicate inflammation, infection/sepsis. The higher the score the more severe.
Neutrophil-Lymphocyte Ratio LevelBaseline, Hour 3, Hour 12, Hour 24, Hour 48Neutrophil-lymphocyte ratio level is an indicator of inflammation and infection/sepsis or marrow malignancy. Normal range is 1-2. Levels higher than normal indicate inflammation, infection/sepsis, marrow malignancy. The higher the score the more severe.
Angiotensin (1-7)Baseline, Hour 3, Hour 12, Hour 24, Hour 48, Hour 72Angiotensin (1-7) level as a measure of the renin-angiotensin-aldosterone system
Plasma renin activitybaseline, hour 3, hour 12, hour 24, hour 48levels at indicated timepoints
Proreninbaseline, hour 3, hour 12, hour 24, hour 48levels at indicated timepoints
Soluble prorenin receptor (sPRR)baseline, hour 24, hour 48levels at indicated timepoints
Aldosteronebaseline, hour 3, hour 12, hour 24, hour 48levels at indicated timepoints
Intact Aogenbaseline, hour 24, hour 48levels at indicated timepoints
ANG IIbaseline, hour 3, hour 12, hour 24, hour 48, hour 72levels at indicated timepoints
Angiotensin-converting enzyme (ACE)baseline, hour 24, hour 48levels at indicated timepoints
Angiotensin-converting enzyme-2 (ACE2)baseline, hour 24, hour 48levels at indicated timepoints
Dipeptidyl peptidase 3 (DPP3)baseline, hour 24, hour 48levels at indicated timepoints
RNA Paxgene Bulk (Bulk RNA sequencing)baseline, hour 24, hour 48levels at indicated timepoints
Whole blood cryopreserved (scRNAsesq)baseline, hour 24, hour 48levels at indicated timepoints

Countries

United States

Contacts

CONTACTAshish Khanna, MD
ashish.khanna@wfusm.edu513-658-5866
CONTACTLynnette Harris, RN
lynnette.harris@advocatehealth.org336-716-8791
PRINCIPAL_INVESTIGATORAshish Khanna, MD

Atrium Health Wake Forest Baptist

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 25, 2026