Early Norepinephrine Administration and Rapid Dose Adjustment
CENSER2
Efficacy of Early Norepinephrine Administration and Rapid Dose Adjustment in Adult Septic Shock Patients: A Multicenter Randomized Controlled Trial
1 other identifier
interventional
600
1 country
6
Brief Summary
The goal of this clinical trial is to determine whether early initiation of norepinephrine with rapid dose adjustment improves clinical outcomes in adult patients with septic shock. The study aims to evaluate the effect of early norepinephrine administration on mortality, hemodynamic stabilization, and resuscitation efficiency in adults aged 18 years and older diagnosed with septic shock. The main questions it aims to answer are:
- Does early norepinephrine administration with rapid dose titration reduce 28-day mortality compared with standard treatment?
- Does early norepinephrine administration with rapid dose tiration lead to faster shock control and reduced fluid requirements without increasing treatment-related adverse events? Researchers will compare early norepinephrine administration with rapid dose adjustment to placebo with standard sequential resuscitation and rescue norepinephrine as needed to see if early vasopressor initiation improves survival, shock resolution, and safety outcomes. Participants will:
- Receive either norepinephrine or placebo infusion initiated within one hour of septic shock diagnosis, with dose adjustment every 15 minutes according to a standardized protocol
- Undergo close hemodynamic and safety monitoring, including frequent vital sign assessment and limb perfusion evaluation
- Receive standard sepsis care, including fluid resuscitation, antibiotics, and organ support as clinically indicated
- Be followed for clinical outcomes and adverse events for up to 28 days after enrollment
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable sepsis
Started Jan 2026
Typical duration for not_applicable sepsis
6 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 1, 2026
CompletedFirst Submitted
Initial submission to the registry
January 6, 2026
CompletedFirst Posted
Study publicly available on registry
January 15, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
March 1, 2028
April 22, 2026
April 1, 2026
2 years
January 6, 2026
April 21, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
28-day survival
Survival at 28-day after enrollment. Telephone follow-up for patients who are discharged before 28 days.
From enrollment to 28 days after enrollment
Secondary Outcomes (10)
Number of participants with shock control achieved
From enrollment to 6 hours after enrollment
Duration of intensive care unit stay
From enrollment to hospital discharge or 90 days (whichever comes first)
Duration of hospital stay
From enrollment to hospital discharge or 90 days (whichever comes first)
Duration of mechanical ventilation
From enrollment to hospital discharge or 90 days (whichever comes first)
Duration of renal replacement therapy
From enrollment to hospital discharge or 90 days (whichever comes first)
- +5 more secondary outcomes
Study Arms (2)
Intervention
EXPERIMENTALNorepinephrine 4 mg in 250 mL D5W, initiated at 0.05 mcg/kg/min. Titrate by 0.025 mcg/kg/min every 15 minutes if MAP \<65 mmHg, up to 0.15 mcg/kg/min maximum. Rescue norepinephrine available if needed (separate line). Limb ischemia monitoring every 15 minutes. Duration: 24 hours.
Control
SHAM COMPARATORPlacebo (D5W 250 mL) with an identical dosing schedule. Rescue norepinephrine available via a separate line. Same monitoring protocols.
Interventions
Norepinephrine 4 mg in 250 mL D5W, initiated at 0.05 mcg/kg/min. Titrate by 0.025 mcg/kg/min every 15 minutes if MAP \<65 mmHg, up to 0.15 mcg/kg/min maximum. Rescue norepinephrine available if needed (separate line). Limb ischemia monitoring every 15 minutes. Duration: 24 hours.
Placebo (D5W 250 mL) with an identical dosing schedule. Rescue norepinephrine available via a separate line. Same monitoring protocols.
Eligibility Criteria
You may qualify if:
- Age ≥ 18 years
- Sepsis: SOFA ≥2 with suspected infection
- Mean arterial pressure \<65 mmHg
- Diagnosed within 3 hours
You may not qualify if:
- Do-not-resuscitate orders
- Pregnancy
- Severe concurrent conditions (acute stroke, acute coronary syndrome, acute pulmonary edema, status asthmaticus, active gastrointestinal bleeding, status epilepticus, severe burn, severe trauma, and fatal drug overdose, End-stage malignancy
- Peripheral arterial disease
- Prior norepinephrine administration
- Recurrent shock in the same patient
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Siriraj Hospitallead
- Maharaj Nakorn Si Thammaratcollaborator
- Kalasin Hospitalcollaborator
- Khon Kaen Hospitalcollaborator
- Udon Thani Regional Hospitalcollaborator
- Hat Yai Hospitalcollaborator
Study Sites (6)
Faculty of Medicine Siriraj Hospital, Mahidol University
Bangkok Noi, Bangkok, 10700, Thailand
Kalasin Hospital
Kalasin, Changwat Kalasin, 46000, Thailand
Khon Kaen hospital
Khon Kaen, Changwat Khon Kaen, 4000, Thailand
Udon Thani Hospital
Udon Thani, Changwat Udon Thani, 41000, Thailand
Hatyai Hospital
Hat Yai, Hat Yai, 90110, Thailand
Maharaj Nakhon Si Thammarat Hospital
Nakhon Si Thammarat, ์Nakhon Si Thammarat, 8000, Thailand
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Chairat Permpikul, Professor
Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Lecturer
Study Record Dates
First Submitted
January 6, 2026
First Posted
January 15, 2026
Study Start
January 1, 2026
Primary Completion (Estimated)
January 1, 2028
Study Completion (Estimated)
March 1, 2028
Last Updated
April 22, 2026
Record last verified: 2026-04