Steroid treatment in patients with heart attack - PULSE-MI 2

2025-524320-21-00 Therapeutic confirmatory (Phase III) Ongoing, recruiting

Start 20 Apr 2026 · Status Ongoing, recruiting · 1 EU/EEA countries · 4 sites

Overview

Sponsor-declared trial summary

Phase Therapeutic confirmatory (Phase III)
Status Ongoing, recruiting
Participants planned 5,204
Countries 1
Sites 4

ST-segment Elevation Myocardial Infarction

The aim of the trial is to evaluate the effect of prehospital pulse-dose glucocorticoid on all-cause mortality compared to placebo in patients with STEMI

Key facts

Sponsor
Rigshospitalet
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Cardiovascular Diseases [C14]
Trial duration
20 Apr 2026 → ongoing
Decision date (initial)
2026-03-11
Transition trial
No
Low-intervention
No
Rare-disease indication
No
Vulnerable population
Yes
Funding sources
Sundhedsdonationer · Hjerteforeningen

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Safety, Efficacy, Therapy

The aim of the trial is to evaluate the effect of prehospital pulse-dose glucocorticoid on all-cause mortality compared to placebo in patients with STEMI

Secondary objectives 8

  1. To determine whether glucocorticoid treatment reduces cardiovascular mortality
  2. To determine whether glucocorticoid treatment reduces spontaneous myocardial infarction
  3. To determine whether glucocorticoid treatment reduces admission for heart failure
  4. To determine whether glucocorticoid treatment reduces all-cause mortality and admission for heart failure
  5. To determine whether glucocorticoid treatment reduces cardiovascular mortality and admission for heart failure
  6. To determine whether glucocorticoid treatment reduces recurrent non-fatal cardiovascular events (spontaneous myocardial infarction and admission for heart failure) with death as a terminal event
  7. To determine whether the response to glucocorticoid treatment differs in prespecified subgroups defined by age, sex, left ventricular ejection fraction <45% at arrival, anterior infarction, multivessel disease (>50% angiographic stenosis in non-culprit artery), symptom to intervention <6 hours, and thrombolysis in myocardial infarction grade 0-1 before percutaneous coronary intervention
  8. To determine whether glucocorticoid treatment improves prognosis in patients with STEMI and type I myocardial infarction

Conditions and MedDRA coding

ST-segment Elevation Myocardial Infarction

Study design 1 period

#TitleAllocationBlindingRoles blindedArms
1 PULSE-MI2
This study is an investigator-initiated, 1:1 randomized, double-blinded, placebo-controlled clinical trial. The trial will be chaired at the Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Denmark. The study design is described in the protocol section 5.1.
Randomised Controlled Double [{"id":181160,"code":2,"name":"Investigator"},{"id":181156,"code":1,"name":"Subject"},{"id":181159,"code":4,"name":"Analyst"},{"id":181157,"code":5,"name":"Carer"},{"id":181158,"code":3,"name":"Monitor"}] Placebo: Intravenous infusion of 4 mL isotonic NaCl (0.9%) over a period of 5 minutes
250 mg methylprednisolone: 2 x 125 mg/2 mL Solu-Medrol, a total of 250 mg/4 mL, which comes as a sterile powder with pre-servative free isotonic NaCl as diluent. The drug is infused over a period of 5 minutes.

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 3

  1. Age ≥18 years including fertile women
  2. Acute onset of chest pain with < 24 hours duration
  3. STEMI as characterized on electrocardiogram (ECG) by one of the following: a. at least two contiguous leads with ST-segment elevation ≥2.5 mm in men < 40 years, ≥2 mm in men ≥40 years, or ≥1.5 mm in women in leads V2-V3 and/or ≥1 mm in the other leads, b. presumed new left bundle branch block with ≥1 mm concordant ST-segment eleva-tion in leads with a positive QRS complex, or concordant ST-segment depression ≥1 mm in V1-V3, or discordant ST-segment elevation ≥5 mm in leads with a negative QRS complex c. Isolated ST depression ≥0.5 mm in leads V1-V3 and ST-segment elevation (≥0.5 mm) in posterior chest wall leads V7-V9 indicating posterior acute myocardial infarc-tion (AMI) d. ST-segment depression ≥1 mm in eight or more surface leads, coupled with ST-segment elevation in aVR and/or V1 suggesting left main-, or left main equivalent- coronary obstruction

Exclusion criteria 3

  1. Suspected other than type I acute myocardial infarction at the time of potential randomization
  2. Initial presentation with cardiac arrest (out of hospital cardiac arrest)
  3. Known allergy to glucocorticoid

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  1. All-cause mortality

Secondary endpoints 6

  1. Cardiovascular mortality
  2. Spontaneous myocardial infarction
  3. Admission for heart failure
  4. All-cause mortality or admission for heart failure
  5. Cardiovascular mortality or admission for heart failure
  6. Recurrent non-fatal cardiovascular events (spontaneous myocardial infarction and admission for heart failure) with death treated as a terminal event

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 1

SOLU-MEDROL 125 mg pulver och vätska till injektionsvätska, lösning

PRD2076544 · Product

Active substance
Methylprednisolone
Substance synonyms
6-METHYLPREDNISOLONE
Pharmaceutical form
SOLUTION FOR INJECTION
Route of administration
INTRAVENIOUS INFUSION
Max daily dose
250 mg/g milligram(s)/gram
Max total dose
250 mg milligram(s)
Max treatment duration
1 Day(s)
Authorisation status
Authorised
ATC code
H02AB04 — METHYLPREDNISOLONE
Marketing authorisation
6397
MA holder
PFIZER OY
MA country
Finland
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Placebo 1

Natriumchlorid ”Noridem”,solvens til parenteral anvendelse/injektionsvæske, opløsning

PRD388433 · Product

Active substance
Sodium Chloride
Pharmaceutical form
SOLUTION FOR INJECTION
Route of administration
INTRAVENOUS INFUSION
Max daily dose
4 ml millilitre(s)
Max total dose
4 ml millilitre(s)
Max treatment duration
1 Week(s)
Authorisation status
Authorised
ATC code
V07AB — SOLVENTS AND DILUTING AGENTS, INCL. IRRIGATING SOLUTIONS
Marketing authorisation
41289
MA holder
NORIDEM ENTERPRISES LTD
MA country
Denmark
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Rigshospitalet

Sponsor organisation
Rigshospitalet
Address
Blegdamsvej 9
City
Copenhagen Oe
Postcode
2100
Country
Denmark

Scientific contact point

Organisation
Rigshospitalet
Contact name
Thomas Engstrøm

Public contact point

Organisation
Rigshospitalet
Contact name
Thomas Engstrøm

Third parties 1

OrganisationCity, countryDuties
Region Hovedstaden
ORG-100003705
Frederiksberg, Denmark On site monitoring

Locations

1 EU/EEA country · 4 investigational sites

By country

CountryMS statusPlanned subjectsSites
Denmark Ongoing, recruiting 5,204 4
Rest of world 0

Investigational sites

Denmark

4 sites · Ongoing, recruiting
Rigshospitalet
Heart Center, Department of Cardiology, Blegdamsvej 9, 2100, Copenhagen Oe
Aalborg University Hospital
Heart Center, Department of Cardiology, Hobrovej 18-22, 9000, Aalborg
Aarhus Universitet
Heart Center, Department of Cardiology, Palle Juul-Jensens Boulevard 11, 8200, Aarhus N
Odense University Hospital
Heart Center, Department of Cardiology, J. B. Winsloews Vej 4, 5000, Odense C

Country notifications

Trial-start, recruitment-start, end and early-termination notifications submitted per Member State

Country Trial startTrial end Recruitment startRecruitment end Early termination
Denmark 2026-04-20 2026-04-20

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Documents 11 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Protocol (for publication) Protokol PULSE-MI 2 2
Recruitment arrangements (for publication) Recruitment arrangements final 3
Subject information and informed consent form (for publication) Ambulanceregistrering_redcap 1
Subject information and informed consent form (for publication) Deltagerinformation 3
Subject information and informed consent form (for publication) Forsgsvrgeinformation 3
Subject information and informed consent form (for publication) Parrende- og forsgsvrgesamtykke_vek 1
Subject information and informed consent form (for publication) Parrendeinformation 3
Subject information and informed consent form (for publication) Patientsamtykke_vek 1
Subject information and informed consent form (for publication) Rettigheder som forsgsperson VEK 1
Summary of Product Characteristics (SmPC) (for publication) SPC - Solu-medrol 1
Synopsis of the protocol (for publication) Trial synopsis 2

Application history

2 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2025-12-23 Denmark Acceptable
2026-03-09
2026-03-11
2 NON SUBSTANTIAL MODIFICATION NSM-1 2026-04-14 Denmark Acceptable
2026-03-09
2026-04-14