> Trialight public data. Index of pages: https://trialight.com/llms.txt
> Web page: https://trialight.com/data/trial/vasopressin-and-steroids-in-addition-to-adrenaline-in-ade18a5a-64b4-4be5-9f6d-f7c667d24724
> Record changed: 2026-10-13

# VAsopressin and STeroids in Addition to Adrenaline in Cardiac Arrest - a Randomized Clinical Trial

NCT05139849

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

Phase

Phase 3

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

Recruitment status

Recruiting

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

Participants

1,276

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

Lead sponsor

Tiohundra AB

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

Start date

2021-11-17

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

Number of sites

2

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

## Title and summary

**Summary**

This is an investigator initiated randomized, placebo controlled, double blind, superiority, multi-centre clinical trial. The estimated study project period runs over 3-4 years, including pilot phase. Based on preliminary assumptions, to confirm or reject an increase in survival from 9% to 14%, about1400 patients will be randomized in the study. In hospital cardiac arrest patients meeting criteria(s) for adrenaline administration according to current ERC guidelines are eligible for randomization in the study. Informed consent for participating in the study cannot be obtained from the subject at the scene of the cardiac arrest since the victim is unconscious. Therefore, all hospitalized men \\> 18 years and women \\> 50 years, except those fulfilling the exclusion criterias; patients not capable to comprehend information to decide about participation in the study, women considered of childbearing potential (WOCBP)) and do not resuscitate (DNR) decision will be informed and asked about consent to participate in the study and in the case of cardiac arrest during the actual hospital stay randomized to either treatment. Only those patients experiencing an in hospital cardiac arrest meeting criteria(s) for adrenaline administration will be randomized. Patients will be randomized to, in addition adrenaline, either treatment with vasopressin and steroids (intervention) or sodium chloride (placebo) (control). Primary outcome is survival at 30 days.

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

**Acronym**

VAST-A

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

**Short title**

VAsopressin and STeroids in Addition to Adrenaline in Cardiac Arrest - a Randomized Clinical Trial

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

**Official title**

VAsopressin and STeroids in Addition to Adrenaline in Cardiac Arrest - a Randomized Clinical Trial

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

## Status and phase

**Control arm**

Placebo

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

**Registry reports results**

No

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

**Listing at source**

Listed

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

**Recruitment status**

Recruiting

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

**Phase**

Phase 3

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

**Study type**

Interventional

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

## Dates

**Completion date**

2027-04-30

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

**First posted**

2021-12-01

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

**Registry last updated**

2022-01-20

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

**Primary completion date**

2027-01-31

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

**Start date**

2021-11-17

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

## Size and sites

**Participants**

1,276

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

**Participant count basis**

Estimated

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

**Planned participants**

1,276

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

**Protocol amendments**

0

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

**Number of sites**

2

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

## Sponsor and oversight

**Registry sponsor category**

Industry

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

**Lead sponsor**

Tiohundra AB

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

**Source registry**

ClinicalTrials.gov

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

## Identifiers

**Registry ID**

NCT05139849

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

**ClinicalTrials.gov ID**

NCT05139849

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

**Registry record**

Open registry record

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

## Study design

**Allocation**

Randomised

**Model**

Parallel groups

**Purpose**

Treatment

**Masking**

Quadruple masking

**Masked roles**

Participants, Care providers, Investigators, Outcome assessors

Sources for study design

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

## Outcomes

### Primary outcomes

1. Survival at 30 days  
Timeframe: Survival at 30 days  
Survival at 30 days

Sources for outcomes

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

## Eligibility

**Sex**

All

**Age groups**

Adults, Older adults

**Minimum age**

18 Years

**Healthy volunteers**

No

### Inclusion criteria

- Hospitalized men > 18 years and hospitalized women > 50 years.

### Exclusion criteria

- Patients not capable to comprehend information to decide about participation in the study
- Women considered of childbearing potential (WOCBP) i. e. premenopausal women
- Patients with do not resuscitate (DNR) descision
- Prior enrollment and randomization in the trial

Sources for eligibility

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

## Sites

- Sahlgrenska University HospitalGothenburg, SwedenRecruiting
- TiohundraNorrtälje, SwedenRecruiting

Sources for sites

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

## References

- PubMed 37543161  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/37543161/)
Related publication

Sources for references

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05139849)

## Related records

### Drugs (3)

- [Hydrocortisone acetate](https://trialight.com/data/asset/hydrocortisone-acetate-6f4eebc7-9cd1-45f5-9f54-435f641fe253.md)
- [Methylprednisolone](https://trialight.com/data/asset/methylprednisolone-f881999e-4ad3-485a-8fbe-6e7b979365f9.md)
- [Vasopressin](https://trialight.com/data/asset/vasopressin-592303bd-1d7e-43c7-af55-8c1dcb6024f0.md)

### Collaborators (2)

- Sahlgrenska University Hospital
- Stockholm South General Hospital

### Lead sponsors (1)

- [Tiohundra AB](https://trialight.com/data/company/tiohundra-ab-67e45cf3-e426-4113-b183-d2be718b2eec.md)

### Conditions (2)

- [Cardiac arrest](https://trialight.com/data/condition/cardiac-arrest-aa5c0aed-2b70-5846-9872-ccd2a7b23670.md) Primary condition
- [Diabetes insipidus](https://trialight.com/data/condition/diabetes-insipidus-eb0e3300-ebb1-5892-a012-f19eda2b45b3.md)

### Targets (4)

- [AVPR1A](https://trialight.com/data/target/avpr1a-9e0d16e5-7d9c-530e-8937-823c361e897a.md)
- [AVPR1B](https://trialight.com/data/target/avpr1b-23475468-807c-5646-8f15-f2cc20d96829.md)
- [AVPR2](https://trialight.com/data/target/avpr2-9e511853-9fb7-5fbc-83e8-ec6d25930de7.md)
- [NR3C1](https://trialight.com/data/target/nr3c1-98974b8d-fb89-5483-955e-d4a994c71532.md)

---

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