Clinical trial Recruiting at 12 sites Observational Ages 18 and up

Using vasopressin as a second vasopressor in adult septic shock patients

Official title: Use of Vasopressin in Septic Shock.

Run by Hospital General Universitario Gregorio Marañon · NCT07255378 · Data updated 2026-11-12

This observational project will see if starting vasopressin earlier, based on the norepinephrine dose, helps adults in ICUs with septic shock.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment1200 (estimated)
SponsorHospital General Universitario Gregorio Marañon
Academic / other
Locations12 sites (Terrassa, BARCELONA and 11 other locations)
StatusRecruiting
StartedOctober 1, 2025
Main results expectedOctober 31, 2027
Study endsJanuary 1, 2028
Registry record updatedDecember 15, 2025
Trial IDNCT07255378 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (age ≥18) admitted to a participating ICU with septic shock who require norepinephrine and receive vasopressin as an adjunct, and who are not excluded by pregnancy, ischemic cardiogenic shock, acute intestinal ischemia, or ICU readmission, are eligible.

Probably not a fit

Patients who are pediatric, never require vasopressors, have primary ischemic cardiogenic shock, are pregnant, have acute intestinal ischemia, or are ICU readmissions are not expected to benefit from inclusion in this observational project.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a prospective, multicenter observational study of critically ill adults (≥18 years) admitted to ICU with septic shock who receive vasopressin in addition to norepinephrine. Investigators will record the norepinephrine dose at vasopressin initiation and collect daily clinical data during the ICU stay using a pseudonymized REDCap database. The main comparisons focus on timing of vasopressin initiation (defined by norepinephrine dose) and relationships with mortality, renal function, and progression of organ dysfunction. No experimental interventions are assigned — treatments follow local clinical practice and are observed for outcome associations.

Why it matters

Potential benefit: If earlier vasopressin initiation is linked to lower death or less kidney and organ injury, the findings could help clinicians choose the best timing for adding vasopressin and improve outcomes.

How similar studies have gone: Prior randomized trials (for example VASST and VANISH) have tested vasopressin as an adjunct vasopressor with mixed results, leaving the optimal timing and subgroup benefits uncertain.

Who can join: the full rules

Show full inclusion / exclusion criteria
Eligible patients for this study must comply with the following requirements.

* ICU admission with a septic shock diagnosis.
* Age 18 years or above at ICU admission.
* Use of vasopressin as an adjunct of norepinephrine.

For the purposes of this study, septic shock is defined by full compliance with the following criteria.

* Sustained arterial hypotension or serum lactate above 2 mmol/L.
* Adequate but unsuccessful fluid resuscitation.
* Vasopressor usage to maintain a mean arterial pressure above 65 mmHg.
* Probable or proven infectious etiology.

Patients with some of the following conditions will be automatically excluded.

* Pregnancy.
* Ischemic cardiogenic shock.
* Acute intestinal ischemia.
* Readmission to the Intensive Care Unit.

Where it's running

  • Consorci Sanitari de Terrassa
    Terrassa, Barcelona, Spain
    Recruiting
  • Hospital Universitario de Getafe
    Getafe, Madrid, Spain
    Recruiting
  • Hospital Universitario La Princesa
    Madrid, Madrid, Spain
    Recruiting
  • Hospital General Universitario Gregorio Marañón
    Madrid, Madrid, Spain
    Recruiting
  • Hospital Universitario Ramón y Cajal
    Madrid, Madrid, Spain
    Recruiting
  • Hospital Universitario Clínico San Carlos
    Madrid, Madrid, Spain
    Recruiting
Show 6 more locations
  • Hospital Universitario Doce de Octubre
    Madrid, Madrid, Spain
    Recruiting
  • Hospital Universitario La Paz
    Madrid, Madrid, Spain
    Recruiting
  • Hospital Universitario Puerta de Hierro
    Majadahonda, Madrid, Spain
    Recruiting
  • Hospital Universitario Rey Juan Carlos
    Móstoles, Madrid, Spain
    Recruiting
  • Hospital Universitario y Politécnico de La Fe
    Valencia, Valencia, Spain
    Recruiting
  • Hospital Universitario Miguel Servet
    Zaragoza, Zaragoza, Spain
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.