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Myocardial Reperfusion InjuryPhase 2NCT03995732

Efficacy and Safety Evaluation of PC-SOD for Injection in Reducing Myocardial Reperfusion Injury

A Phase 2 study testing PC-SOD in people with Myocardial Reperfusion Injury, run by Beijing Tide Pharmaceutical Co., Ltd at 2 sites in China.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The current study aims to evaluate different doses of PC-SOD injections for efficacy and safety in comparison to placebo, in order to provide a basis for future clinical trials in terms of experimental design and dose selection. Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Myocardial Reperfusion Injury
What is being tested?
PC-SOD
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
120 participants
Where
2 sitesChina
Study dates
18 Jun 2019to 30 Mar 2021
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age 18 - 75 years, male or female;
  • Meeting the diagnostic criteria of AMI (chest pain for over 10 - 20 min, which could not be relieved completely by oral nitroglycerin; ST elevation ≥ 2 mm in two or more adjacent leads in leads V1-V5 );
  • Killip classes I or II;
  • Coronary angiography possible within 6 hours of onset;
  • Emergent coronary angiography showing occlusion in left anterior descending artery (TIMI grade 0 - 1); patients with this symptom could also be included despite inconformity to criterion 2);
  • Willingness to participate in the trial with ethical approval and informed consent provision.

Who cannot join

  • General exclusion criteria
  • Previous history of myocardial infarction;
  • History of myocardial revascularization before screening;
  • Thrombolytic treatment after onset;
  • Cardiogenic shock;
  • Cardiopulmonary resuscitation between onset and screening;
Show all 20Show fewer
  • Atrial fibrillation, atrioventricular block (degree I, II or III), and other severe arrhythmias that cannot be corrected and affect hemodynamics;
  • Suspected of aortic dissection;
  • Diabetes with long-term insulin use, or definite macrovascular or small vascular lesions (stroke, diabetic nephropathy, retinopathy, diabetic foot, and etc.);
  • History of major surgeries within 6 months;
  • History of stroke within 6 months;
  • History of immune disorders within 6 months (such as cancer, lymphoma, HIV or hepatitis), or use of immunosuppressive agents at doses that can cause immunosuppression within 10 days;
  • Clinically significant diseases of the respiratory, digestive, blood, immune, endocrine, nervous or urinary systems (renal insufficiency in particular), and diseases that might cause serious risk to patients based on the judgement of researchers;
  • Allergy to two or more drugs and/or foods, or known allergy to sucrose;
  • Any contraindications for cardiac MRI, such as implantation of metal objects (pacemakers and/or implantable defibrillators; insulin pumps, or any other electronic devices; cerebral clips, aneurysm clips, and etc.), and other contraindications (such as claustrophobia);
  • Pregnancy or lactation in women;
  • Participation in other clinical trials within 3 months;
  • Situations considered unsuitable for enrollment (such as disease condition or patient compliance).
  • Occlusion of left main artery;
  • Apart from the left anterior descending branch, other blood vessels requiring revascularization in the same period or within a month.

Trial locations and contacts

2 sites in 1 country.

Huo Yong, master contact

13901333060

drhuoyong@163.com

China2 sites, 2 recruiting
  • Zhongshan Hospital

    Shanghai, Shanghai Municipality, 200032

    Ge Junbo, MD, ge.junbo@zs-hospital.sh.cn

    Recruiting
  • Wuhan Asia Heart Hospital

    Wuhan, Hubei, 430022

    Su Xi, MD

    Not yet recruiting

Other trials in China

About this study

Official title: Efficacy and Safety Evaluation of Phosphatidyl Choline Cu/Zn Superoxide Dismutase (PC-SOD) for Injection in Reducing Myocardial Reperfusion Injury: a Multicenter, Randomized, Single-blind, Placebo-controlled Dose-finding Study

The current study aims to evaluate different doses of PC-SOD injections for efficacy and safety in comparison to placebo, in order to provide a basis for future clinical trials in terms of experimental design and dose selection.

Read the detailed description

The study is a randomized, single-blind, multi-center, placebo-controlled trial to preliminarily evaluate the efficacy and safety of PC-SOD, and to provide a basis for dose selection in the next stage of study.

For each participant, the trial will be divided into the screening/treatment (screening and treatment conducted during the first visit, 0 d) and safety follow-up (1 - 30 d) stages.

The study will screen 120 eligible subjects. After successful screening, the subjects will be randomly assigned into four groups of equal size, including the 40 mg PC-SOD, 80 mg PC-SOD, 160 mg PC-SOD and placebo control groups. Subjects in each group will be administered the corresponding intervention, followed by PCI treatment. During the safety follow-up stage, the subjects will receive basic treatment based on Guidelines for Management of Patients with ST-segment elevation myocardial infarction. Treatments will include dual anti-platelet therapy, beta-blockers, ACEI/ARB (angiotensin-converting enzyme inhibitor/ angiotensin receptor blocker), statins, anticoagulants, and so on.

By comparing the efficacy and safety endpoints of patients in the experimental and placebo control groups, the study aims to preliminarily evaluate the efficacy and safety of different doses of PC-SOD in reducing myocardial reperfusion injury.

Being tested
PC-SOD, placebo
Medical subject headings
Myocardial Reperfusion Injury

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • PC-SODDrug

    PC-SOD will be dissolved in 10 mL of 5% glucose injection and intravenously administrated before recanalization.

  • placeboDrug

    Placebo will be dissolved in 10 mL of 5% glucose injection and intravenously administrated before recanalization.

Study groups in NCT03995732
Study groupRoleWhat they receive
40 mg treatment groupExperimentalPC-SOD 40 mg dissolved in 10 mL of 5% glucose injection and intravenously administrated before recanalization.
Receives: Drug: PC-SOD
80 mg treatment groupExperimentalPC-SOD 80 mg dissolved in 10 mL of 5% glucose injection and intravenously administrated before recanalization.
Receives: Drug: PC-SOD
160 mg treatment groupExperimentalPC-SOD 160 mg dissolved in 10 mL of 5% glucose injection and intravenously administrated before recanalization.
Receives: Drug: PC-SOD
placebo control groupPlacebo comparatorplacebo dissolved in 10 mL of 5% glucose injection and intravenously administrated before recanalization.
Receives: Drug: placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The myocardial salvage index at 7 d after PCI

    The myocardial salvage index is defined as (area of myocardial edema - area of myocardial infarction)/area of myocardial edema.

    Measured: 7 days

  2. The area of myocardial infarction at 7 d after PCI (detected by delayed-enhanced MRI [Magnetic Resonance Imaging] )

    The area of myocardial infarction is defined as the percentage of left ventricular myocardium occupied by delayed enhancement.

    Measured: 7 days

  3. Area of microvascular occlusion at 7 d after PCI

    Microvascular occlusion is defined as the area with no enhancement in the infarcted regions where delayed enhancement can be observed on MRI scans.

    Measured: 7 days

  4. The area of infarction determined by the AUC (area under curve) for CK-MB (creatine kinase-muscle/brain) at 72h after PCI.

    The area of infarction at 72h after surgery will be roughly estimated by calculating the AUC for CK-MB (before operation, and at 6, 12, 24, 48 and 72h after operation, respectively).

    Measured: 72 hours

  5. Cardiac function at 7 d after PCI

    Cardiac function is assessed by assessing the left ventricular ejection fraction (percentage of stroke output to end-diastolic volume).

    Measured: 7 days

  6. The TIMI (thrombolysis in myocardial infarction) grade of coronary blood flow after PCI.

    Coronary artery reperfusion will be assessed by the TIMI grading system, whose grades include:

    Grade 0: no contrast filling at the occlusion site and distal end; Grade 1: the contrast passes some of the occluded sites, but cannot fill the distal vessels; Grade 2: the contrast can fill the distal end of coronary artery completely, but the filling and clearing of contrast is slower than that of normal coronary artery; Grade 3: the contrast can fill the distal end rapidly and completely, and can be removed quickly.

    The TIMI flow grades will be determined by two physicians separately. In case of disagreement, a lead physician will help make the final call.

    Measured: within 24 hours

  7. The corrected TIMI frame count (cTFC) after PCI.

    The left anterior descending (LAD) artery will be analyzed in a 30º right anterior oblique view with 30º cranial angulation. The left circumflex (LCX) will be analyzed in a 30º right anterior oblique view with 30º caudal angulation. The right coronary artery (RCA) will be analyzed in a 45º left anterior oblique view.

    Measured: within 24 hours

  8. TIMI myocardial perfusion grade (TMPG) after PCI

    Grade 0: no contrast entering the myocardium; Grade 1: the contrast enters myocardium slowly, with myocardial staining not disappearing or lasting for more than 30 s in the targeted vessels; Grade 2: delayed entering and disappearing of contrast in the myocardium, exceeding 3 cardiac cycles; Grade 3: normal entering and disappearing of contrast in the myocardium, occurring within 3 cardiac cycles.

    Measured: within 24 hours

  9. Percentage of ST-segment resolution on ECG (electrocardiogram) at 90 min after PCI

    ST-resolution is defined as more than 50% of resolution.

    Measured: 90 minutes

  10. Number of cardiovascular events within 30 d after PCI

    Cardiovascular events included all-cause death, cardiovascular death, non-fatal myocardial infarction, non-fatal stroke, and hospitalization due to heart failure.

    Measured: 30 days

  11. SOD (Superoxide Dismutase) activity

    Change from Baseline SOD activity at 6h, 12h, 24h, 48h, 72h and 7 d after surgery.

    Measured: 0 hours, 6 hours, 12 hours, 24 hours, 48 hours, 72 hours and 7 days after surgery

  12. Occurence of adverse events

    Occurence of adverse events

    Measured: During patient hospitalization, up to 30 days

  13. Cardiac function at 30 d after PCI

    Cardiac function is assessed by assessing the left ventricular ejection fraction (percentage of stroke output to end-diastolic volume).

    Measured: 30 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Jun 2019
  2. Study start18 Jun 2019
  3. Primary completion31 Oct 2020 (estimated)
  4. Study completion30 Mar 2021 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
120 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03995732
Sponsor's protocol ID
CY-RD101-2
Other IDs
GUSU18003
Status last verified
Sep 2019
First submitted
5 Jun 2019
Last updated
26 Sep 2019
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Yellon DM, Hausenloy DJ. Myocardial reperfusion injury. N Engl J Med. 2007 Sep 13;357(11):1121-35. doi: 10.1056/NEJMra071667. No abstract available.

    PubMed 17855673
  • Zweier JL. Measurement of superoxide-derived free radicals in the reperfused heart. Evidence for a free radical mechanism of reperfusion injury. J Biol Chem. 1988 Jan 25;263(3):1353-7.

    PubMed 2826476
  • Werns SW, Lucchesi BR. Free radicals and ischemic tissue injury. Trends Pharmacol Sci. 1990 Apr;11(4):161-6. doi: 10.1016/0165-6147(90)90068-J.

    PubMed 2185587
  • Kloner RA, Przyklenk K, Whittaker P. Deleterious effects of oxygen radicals in ischemia/reperfusion. Resolved and unresolved issues. Circulation. 1989 Nov;80(5):1115-27. doi: 10.1161/01.cir.80.5.1115.

    PubMed 2553296
  • Przyklenk K, Kloner RA. Superoxide dismutase plus catalase improve contractile function in the canine model of the "stunned myocardium". Circ Res. 1986 Jan;58(1):148-56. doi: 10.1161/01.res.58.1.148.

    PubMed 3943152
  • Engler R, Gilpin E. Can superoxide dismutase alter myocardial infarct size? Circulation. 1989 May;79(5):1137-42. doi: 10.1161/01.cir.79.5.1137. No abstract available.

    PubMed 2653661
  • Igarashi R, Hoshino J, Ochiai A, Morizawa Y, Mizushima Y. Lecithinized superoxide dismutase enhances its pharmacologic potency by increasing its cell membrane affinity. J Pharmacol Exp Ther. 1994 Dec;271(3):1672-7.

    PubMed 7996483
  • Wu E, Ortiz JT, Tejedor P, Lee DC, Bucciarelli-Ducci C, Kansal P, Carr JC, Holly TA, Lloyd-Jones D, Klocke FJ, Bonow RO. Infarct size by contrast enhanced cardiac magnetic resonance is a stronger predictor of outcomes than left ventricular ejection fraction or end-systolic volume index: prospective cohort study. Heart. 2008 Jun;94(6):730-6. doi: 10.1136/hrt.2007.122622. Epub 2007 Dec 10.

    PubMed 18070953

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing PC-SOD in people with Myocardial Reperfusion Injury, run by Beijing Tide Pharmaceutical Co., Ltd at 2 sites in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 20 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 26 Sep 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Huo Yong, master (13901333060, drhuoyong@163.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The myocardial salvage index at 7 d after PCI (time frame: 7 days). The study lists 13 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03995732, which also lists 8 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Sep 2019.

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