Clinical trial • Phase IV • Cardiology

RTP-026 SODIUM for ST-elevation myocardial infarction (STEMI) | Acute myocardial infarction

Phase IV trial of RTP-026 SODIUM for ST-elevation myocardial infarction (STEMI) | Acute myocardial infarction.

Overview

Trial Therapeutic Area
Cardiology
Trial Disease
ST-elevation myocardial infarction (STEMI) | Acute myocardial infarction
Trial Stage
Phase IV
Drug Modality
Peptide/protein/enzyme

Key dates

Initial CTIS Submission Date
20-02-2024
First CTIS Authorization Date
02-05-2024

Trial design

Randomised, placebo arm: rtp-026 placebo; active arm: rtp-026 (rtp-026 sodium) administered by intravenous infusion. maximum dose reported in part i data: 0.68 mg/kg (dose units mg/kg). exact dosing schedule described as 'multiple doses' but detailed schedule not provided in the ctis data.-controlled Phase IV trial in Denmark, Sweden.

Randomised
Yes
Comparator
Placebo arm: RTP-026 Placebo; Active arm: RTP-026 (RTP-026 SODIUM) administered by intravenous infusion. Maximum dose reported in Part I data: 0.68 mg/Kg (dose units mg/Kg). Exact dosing schedule described as 'multiple doses' but detailed schedule not provided in the CTIS data.
Target Sample Size
91
Trial Duration For Participant
90

Eligibility

Recruits 91 No vulnerable population selected. Informed consent is required prior to initiating any study-specific procedures ("Informed consent for participation in the study has been obtained prior to initiating any study-specific procedures")..

Vulnerable Population
No vulnerable population selected. Informed consent is required prior to initiating any study-specific procedures ("Informed consent for participation in the study has been obtained prior to initiating any study-specific procedures").

Inclusion criteria

  • {"criterion_text":"- Informed consent for participation in the study has been obtained prior to initiating any study-specific procedures"}
  • {"criterion_text":"- Men between 18-85 years of age and post-menopausal women up to 85 years of age (menstrual periods stopped at least 12 months ahead of the enrolment in the trial)"}
  • {"criterion_text":"- Acute onset of chest pain of < 12 hours duration"}
  • {"criterion_text":"- STEMI as characterized on ECG by 2 mm ST elevation in 2 or more V1 through V4 leads or presumed new left bundle branch block with a minimum of 1 mm concordant ST elevation or 1 mV ST elevation in the limb lead (II, III and aVF, I, aVL) and V4-V6 or ST depression in 2 or more V1 through V4 leads indicating posterior acute myocardial infarction (AMI)"}
  • {"criterion_text":"- Eligible for primary PCI"}
  • {"criterion_text":"- NLR in the range of 7-17 at hospital admission (measured in a point-of-care testing device). In patients with chest pain lasting > 3 - ≤ 6 hours at admission, the NLR should be in the range of 4.8-17 and for patients with chest pain lasting ≤ 3 hours at admission, the NLR should be in the range of 4.8-17, or the neutrophile count should be ≥ 9 x 10E9/L, irrespective of the lymphocyte count. For STEMI patients with an anterior or anterolateral infarction, the NLR should be ≥3. If it is not possible to measure NLR at admission, it must be measured before reflow is established."}

Exclusion criteria

  • {"criterion_text":"- Participation in any other study involving investigational drug(s) during the study and within 4 weeks prior to study entry"}
  • {"criterion_text":"- Previous exposure to RTP-026"}
  • {"criterion_text":"- Time from symptoms onset to primary PCI > 12 hours"}
  • {"criterion_text":"- Previous CABG"}
  • {"criterion_text":"- Evidence of active malignant disease (except basal cell carcinoma of the skin that has been excised and cured)"}
  • {"criterion_text":"- Ongoing treatment with immune suppressive compounds"}
  • {"criterion_text":"- Any condition that, in the view of the investigator, would suggest that the patient is unable to comply with the study protocol and procedures (e.g., psychiatric disorders, dementia)"}
  • {"criterion_text":"- Known contraindications to CMR"}
  • {"criterion_text":"- ORBI Risk Score > 12"}

Endpoints

Primary endpoints

  • {"endpoint_text":"- The primary safety endpoint: To compare the safety and tolerability of RTP-026 against placebo by evaluating adverse events (AEs), serious adverse events (SAEs), vital signs, ECGs, and laboratory abnormalities.","definition_or_measurement_approach":"Safety and tolerability assessed by recording adverse events (AEs), serious adverse events (SAEs), vital signs, ECGs and laboratory abnormalities."}
  • {"endpoint_text":"- To compare the effect of RTP-026 against placebo by assessing the following by treatment group: Change in cTnT and CK-MB determined in samples taken at Baseline, 6 hrs, 12 hrs and 24 hours post-PCI","definition_or_measurement_approach":"Efficacy measured by change in cardiac troponin T (cTnT) and CK-MB measured in blood samples at Baseline, 6 hours, 12 hours and 24 hours post-PCI."}

Secondary endpoints

  • {"endpoint_text":"- Initial MSI defined as the ratio between IS and AAR determined within 48 hours post-PCI determined by CMR","definition_or_measurement_approach":"Myocardial salvage index (MSI) = ratio of infarct size (IS) to area at risk (AAR) determined by cardiac magnetic resonance imaging (CMR) within 48 hours post-PCI."}
  • {"endpoint_text":"- MSI determined by CMR 90 days post-PCI","definition_or_measurement_approach":"MSI measured by CMR at 90 days post-PCI."}
  • {"endpoint_text":"- IS determined by CMR within 48 hours post-PCI","definition_or_measurement_approach":"Infarct size (IS) assessed by CMR within 48 hours post-PCI."}
  • {"endpoint_text":"- IS determined by CMR 90 days post-PCI","definition_or_measurement_approach":"Infarct size assessed by CMR at 90 days post-PCI."}
  • {"endpoint_text":"- Myocardial oedema determined by CMR within 48 hours post-PCI","definition_or_measurement_approach":"Myocardial oedema assessed by CMR within 48 hours post-PCI."}
  • {"endpoint_text":"- Change in IS from initial determination of IS within 48 hours post-PCI to 90 days post-PCI determined by CMR","definition_or_measurement_approach":"Change in infarct size between the CMR within 48 hours and the CMR at 90 days post-PCI."}
  • {"endpoint_text":"- Effects on LVEF determined by CMR 48 hours post-PCI","definition_or_measurement_approach":"Left ventricular ejection fraction (LVEF) measured by CMR 48 hours post-PCI."}
  • {"endpoint_text":"- Effects on LVEF determined by CMR 90 days post-PCI","definition_or_measurement_approach":"LVEF measured by CMR at 90 days post-PCI."}
  • {"endpoint_text":"- Changes in Pro-BNP, hsCRP and NLR determined in samples taken at Baseline, 6 hrs, 12 hrs and 24 hours post-PCI","definition_or_measurement_approach":"Biomarker changes (Pro-BNP, high-sensitivity CRP, neutrophil-to-lymphocyte ratio) measured in blood samples at Baseline, 6, 12 and 24 hours post-PCI."}
  • {"endpoint_text":"- The composite of death and MACE (defined as CV mortality, admission due to recurrent AMI or HF up to day 28 post-PCI","definition_or_measurement_approach":"Composite endpoint of death and major adverse cardiovascular events (MACE: cardiovascular mortality, admission due to recurrent AMI or heart failure) assessed up to day 28 post-PCI."}
  • {"endpoint_text":"- The composite of death and MACE up to day 90 post-PCI","definition_or_measurement_approach":"Composite endpoint of death and MACE assessed up to day 90 post-PCI."}
  • {"endpoint_text":"- Days to discharge from hospital","definition_or_measurement_approach":"Number of days from admission/PCI to hospital discharge."}

Recruitment

Planned Sample Size
91
Recruitment Window Months
19
Consent Approach
Informed consent must be obtained prior to initiating any study-specific procedures ("Informed consent for participation in the study has been obtained prior to initiating any study-specific procedures"). Participants are adults (men 18-85 and post-menopausal women up to 85). Subject information and informed consent form documents for adults are listed (country-specific versions present, e.g. files with suffixes '_da' for Danish and '_se' for Swedish).

Geography

Total Number Of Sites
4
Total Number Of Participants
91

Denmark

Earliest CTIS Part Ii Submission Date
30-04-2024
Latest Decision Or Authorization Date
02-12-2024
Processing Time Days
216
Number Of Sites
3
Number Of Participants
86

Sites

Site Name
Rigshospitalet
Department Name
The Heart Center
Principal Investigator Name
Thomas Engstrøm
Principal Investigator Email
Thomas.Engstroem@regionh.dk
Contact Person Name
Thomas Engstrøm
Contact Person Email
Thomas.Engstroem@regionh.dk
Site Name
Aarhus Universitetshospital
Department Name
Department of Cardiology
Principal Investigator Name
Michael Maeng
Principal Investigator Email
michmaen@rm.dk
Contact Person Name
Michael Maeng
Contact Person Email
michmaen@rm.dk
Site Name
Odense University Hospital
Department Name
Depertment of Cardiology
Principal Investigator Name
Lisette Okkels Jensen
Principal Investigator Email
lisette.okkels.jensen@rsyd.dk
Contact Person Name
Lisette Okkels Jensen
Contact Person Email
lisette.okkels.jensen@rsyd.dk

Sweden

Earliest CTIS Part Ii Submission Date
03-11-2025
Latest Decision Or Authorization Date
24-11-2025
Processing Time Days
21
Number Of Sites
1
Number Of Participants
5

Sites

Site Name
Skåne University Hospital
Department Name
Department of Cardiology
Principal Investigator Name
Helle Søholm
Principal Investigator Email
helle.soholm@gmail.com
Contact Person Name
Helle Søholm
Contact Person Email
helle.soholm@gmail.com

Sponsor

Primary sponsor

Full Name
ResoTher Pharma A/S
Organisation Type
Pharmaceutical company
Country Of Registered Address
Denmark

Contract research organisations

Name
PharmaLex Denmark A/S
Responsibilities
sponsorDuties codes: 8; contact email: Tale.Baroy@pharmalex.com; phone: +4722238880
Name
Croxx Med ApS
Responsibilities
sponsorDuties codes: 1,10,11,12,15 (Submission),5,6; contact email: bte@croxxmed.com; phone: +4520151221

Third parties

  • {"country":"Denmark","full_name":"PharmaLex Denmark A/S","duties_or_roles":"sponsorDuties codes: 8","organisation_type":"Pharmaceutical company"}
  • {"country":"Denmark","full_name":"Croxx Med ApS","duties_or_roles":"sponsorDuties codes: 1, 10, 11, 12, 15 (Submission), 5, 6","organisation_type":"Pharmaceutical company"}

Investigational products

Investigational Product Name
RTP-026
Active Substance
RTP-026 SODIUM
Modality
Peptide/protein/enzyme
Routes Of Administration
Intravenous infusion
Route
Intravenous infusion
Authorisation Status
prodAuthStatus:1
Maximum Dose
0.68 mg/Kg
Investigational Product Name
RTP-026 Placebo
Modality
Other

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