NCT07285915

Brief Summary

The aim of this study is to assess long-term stress in patients after an out-of-hospital cardiac arrest. To do this, we will measure levels of the stress hormone cortisol in hair samples. Cortisol is produced in larger amounts during periods of ongoing stress and builds up in the hair as it grows. Because hair grows about 1 cm per month, a 3 cm hair sample can show your average stress level over the past three months. The results will be compared with anonymized information from your medical records and the care you received before and during your hospital stay.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
136

participants targeted

Target at P50-P75 for not_applicable

Timeline
17mo left

Started Jan 2026

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

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 Progress24%
Jan 2026Oct 2027

First Submitted

Initial submission to the registry

November 18, 2025

Completed
28 days until next milestone

First Posted

Study publicly available on registry

December 16, 2025

Completed
23 days until next milestone

Study Start

First participant enrolled

January 8, 2026

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2027

Expected
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 31, 2027

Last Updated

May 1, 2026

Status Verified

April 1, 2026

Enrollment Period

1.6 years

First QC Date

November 18, 2025

Last Update Submit

April 27, 2026

Conditions

Keywords

cardiac arrestchronic stresskortizolhair

Outcome Measures

Primary Outcomes (1)

  • Hair cortisol levels assessment in CA patients vs heart attack patients

    Hair cortisol levels assessment in CA patients vs heart attack patients

    Enrollment

Secondary Outcomes (2)

  • Correlation of neurological outcomes using the CPC scale in CA patients with hair cortisol levels.

    30 and 90 days after CA

  • Correlation between the severity of the post-resuscitation course according to the severity of organ damage (heart, lung, kidneys, brain ) and hair cortisol levels

    30 days after CA

Study Arms (2)

Cardiac arrest

EXPERIMENTAL

Cardiac arrest

Diagnostic Test: Sample of hair

Heart attack

EXPERIMENTAL

Heart attack

Diagnostic Test: Sample of hair

Interventions

Sample of hairDIAGNOSTIC_TEST

Sampling of 3cm of hair due to level of cortizol.

Cardiac arrestHeart attack

Eligibility Criteria

Age18 Years - 100 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Cardiac arrest
  • Heart attack
  • years

You may not qualify if:

  • Disapproval patient´s relatives with the study
  • Chronical treatment with corticoids and antidepresives

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Hospital Pilsen

Pilsen, Czech Republic, 30100, Czechia

RECRUITING

MeSH Terms

Conditions

Heart ArrestMyocardial Infarction

Condition Hierarchy (Ancestors)

Heart DiseasesCardiovascular DiseasesMyocardial IschemiaVascular DiseasesInfarctionIschemiaPathologic ProcessesPathological Conditions, Signs and SymptomsNecrosis

Central Study Contacts

Jana Smalcova, MD, Ph.D.

CONTACT

Milan Hromadka, MD, Ph.D.

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
SCREENING
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 18, 2025

First Posted

December 16, 2025

Study Start

January 8, 2026

Primary Completion (Estimated)

July 31, 2027

Study Completion (Estimated)

October 31, 2027

Last Updated

May 1, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

Locations