Ignite Creation Date:
2025-12-25 @ 12:27 AM
Ignite Modification Date:
2025-12-25 @ 10:33 PM
Study NCT ID:
NCT05824767
Status:
COMPLETED
Last Update Posted:
2025-05-14
First Post:
2023-03-05
Is NOT Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
Serum Biomarkers to Predict Response to Angiotensin II in Septic Shock
Sponsor:
University of New Mexico
Organization:
Study Overview
Official Title:
DPP3, Angiotensin II, and Renin Kinetics in Sepsis (DARK-Sepsis) Pilot: Serum Biomarkers to Predict Response to Angiotensin II vs. Standard-of-care Vasopressor Therapy in the Treatment of Septic Shock, a Randomized Controlled Pilot Trial
Status:
COMPLETED
Status Verified Date:
2024-07
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
DARK-Sepsis
Brief Summary:
This trial will be a randomized controlled single-center pilot trial comparing the use of angiotensin II versus standard-of-care (SOC) vasopressor therapy in adult patients with persistent vasodilatory shock despite moderate-dose norepinephrine, with a primary outcome of the ability of novel biomarkers (renin and DPP3) to predict blood pressure response to angiotensin II. Given our angiotensin II will be compared to SOC, this will be an unblinded study.
Detailed Description:
Sepsis affects \>1 million Americans yearly and, when septic shock ensues, it is associated with high morbidity and mortality. Though first-line norepinephrine is standard of care, there are limited prospective data to guide the choice of additional vasopressors in septic shock. While more studies are needed, preliminary data suggest that the vasopressor angiotensin II (AngII) may improve outcomes in septic shock, especially in certain subsets of patients, such as those with acute kidney injury (AKI) requiring renal replacement therapy (RRT), acute respiratory distress syndrome (ARDS), or high severity of illness.
Furthermore, there are no validated biomarkers currently available to guide the choice of vasopressor therapy in septic shock. In this study the investigators will evaluate two potential biomarkers, renin and dipeptidyl peptidase 3 (DPP3). Renin has been shown in preliminary studies to accurately predict mortality in septic shock, outperforming lactate, and to predict beneficial response to AngII. A less well-known candidate biomarker is DPP3, which is an aminopeptidase that cleaves a variety of biologically active oligopeptides including angiotensin II. Similar to renin, preliminary observational data show that elevated DPP3 levels in patients with sepsis are associated with organ dysfunction and short-term mortality, outperforming lactate as a predictor of death.
This study is an unblinded pilot randomized controlled trial (RCT) comparing AngII (intervention) to standard-of-care (SOC) vasopressor therapy in adult patients with persistent vasodilatory shock requiring moderate dose norepinephrine. The primary outcome will be the ability of renin and DPP3 to predict blood pressure (BP) response to AngII. As both renin and DPP3 are associated with overall short-term prognosis in sepsis, the SOC arm will allow us to determine if the predictive value of renin and DPP3 is specific to AngII therapy. A variety of secondary clinical outcomes will also be tracked, but the primary purpose of this pilot study is to inform the future design of a large multicenter RCT evaluating the biomarker-guided use of angiotensin II as a second-line vasopressor in septic shock.
Furthermore, there are no validated biomarkers currently available to guide the choice of vasopressor therapy in septic shock. In this study the investigators will evaluate two potential biomarkers, renin and dipeptidyl peptidase 3 (DPP3). Renin has been shown in preliminary studies to accurately predict mortality in septic shock, outperforming lactate, and to predict beneficial response to AngII. A less well-known candidate biomarker is DPP3, which is an aminopeptidase that cleaves a variety of biologically active oligopeptides including angiotensin II. Similar to renin, preliminary observational data show that elevated DPP3 levels in patients with sepsis are associated with organ dysfunction and short-term mortality, outperforming lactate as a predictor of death.
This study is an unblinded pilot randomized controlled trial (RCT) comparing AngII (intervention) to standard-of-care (SOC) vasopressor therapy in adult patients with persistent vasodilatory shock requiring moderate dose norepinephrine. The primary outcome will be the ability of renin and DPP3 to predict blood pressure (BP) response to AngII. As both renin and DPP3 are associated with overall short-term prognosis in sepsis, the SOC arm will allow us to determine if the predictive value of renin and DPP3 is specific to AngII therapy. A variety of secondary clinical outcomes will also be tracked, but the primary purpose of this pilot study is to inform the future design of a large multicenter RCT evaluating the biomarker-guided use of angiotensin II as a second-line vasopressor in septic shock.
Study Oversight
Has Oversight DMC:
False
Is a FDA Regulated Drug?:
True
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
False
Is an FDA AA801 Violation?: