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STEMIPhase 4MOVEMENTNCT02942550

Methylnaltrexone as a Method to Improve Ticagrelor Uptake in Morphine Treated STEMI Patients

A Phase 4 study testing Methylnaltrexone bromide (Relistor®). and Sodium Chloride 9mg/mL in people with STEMI and Morphine, run by Karolinska University Hospital at 2 sites in Sweden.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study will examine the impact of the peripheral opioid antagonist methylnaltrexone on the onset of effect of ticagrelor in morphine treated patients with ST elevation myocardial infarction (STEMI). Half of the participants will receive methylnaltrexone, while the other half will receive placebo. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
STEMI, Morphine, Ticagrelor
What is being tested?
Methylnaltrexone bromide (Relistor®). and Sodium Chloride 9mg/mL
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
82 participants
Where
2 sitesSweden
Study dates
Nov 2016to Dec 2017
Phase
Phase 4
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosis of STEMI
  • Administration of a 180 mg loading dose ticagrelor
  • Analgesic treatment with intravenous morphine pre-PCI

Who cannot join

  • Cardiac arrest
  • Body weight > 114kg
  • Vomiting after intake of ticagrelor loading dose
  • Use of Naloxone before inclusion or during sampling period
  • Inability to understand study outline and instructions
  • Methylnaltrexone bromide contraindication
Show all 10Show fewer
  • Age <18 years; 8) Women in fertile age
  • Administration of ticagrelor during the week before inclusion
  • Treatment with Cangrexal
  • Ongoing long-term opioid treatment.

Trial locations and contacts

2 sites in 1 country.

Sweden2 sites
  • Karolinska University Hospital

    Stockholm

  • Södersjukhuset (Stockholm South General Hospital)

    Stockholm

Other trials in Sweden

About this study

Official title: Methylnaltrexone as a Method to imprOVE Platelet Inhibition of Ticagrelor in Morphine-treated Patients With ST-segMENT Elevation Myocardial Infarction: a Prospective, Single Blinded Randomized, Placebo-controlled Trial

This study will examine the impact of the peripheral opioid antagonist methylnaltrexone on the onset of effect of ticagrelor in morphine treated patients with ST elevation myocardial infarction (STEMI). Half of the participants will receive methylnaltrexone, while the other half will receive placebo.

Read the detailed description

The rate of drug absorption in the gastro-intestinal tract is often determined by the rate of gastric emptying. Morphine treatment, which is frequently given in order to relieve pain in patients with STEMI, is known to delay gastric emptying, and has indeed emerged as a predictor of delayed/poor antiplatelet response in patients receiving oral prasugrel or ticagrelor.

In recent years, morphine has been found to delay the onset of oral P2Y12-inhibitors. To counteract this, the investigators hypothesized that an opioid antagonist may be used. The opioid antagonist naloxone has previously been shown to reduce the morphine induced delay in gastric emptying However, naloxone crosses the blood-brain barrier (BBB) and reduces the pain relieving effects of morphine. In contrast, the morphine antagonist methylnaltrexone has a reduced passage over the BBB and acts primarily as a peripheral morphine antagonist without affecting the morphine-mediated central analgesic effects.

The aim of the planned study is to evaluate whether methylnaltrexone bromide may reduce the morphine induced delay in onset of platelet inhibition after a loading dose of 180 mg ticagrelor in morphine treated patients with STEMI undergoing primary percutaneous coronary intervention (PCI), where a rapid and adequate platelet inhibition after the administration of ticagrelor is crucial. As morphine is an inclusion criterion, all patients included in the study will be on morphine treatment. Thus, morphine treatment is not an intervention to be administered as part of the protocol. Stratification according to inferior and anterior/lateral STEMI will be perform to avoid imbalance in the location of myocardial infarction between the groups.

Being tested
Methylnaltrexone bromide (Relistor®)., Sodium Chloride 9mg/mL
Medical subject headings
ST Elevation Myocardial Infarction

What participants receive

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

  • Methylnaltrexone bromide (Relistor®).Drug

  • Sodium Chloride 9mg/mLDrug

Study groups in NCT02942550
Study groupRoleWhat they receive
MethylnaltrexoneActive comparatorMethylnaltrexone bromide (Relistor®). Single intravenous injection of 8 mg (0.4 ml solution) for patients weighing 38-61 kg or 12 mg (0.6 ml solution) patients weighing 62-114 kg).
Receives: Drug: Methylnaltrexone bromide (Relistor®).
PlaceboPlacebo comparatorSodium Chloride, 9mg /mL ingle intravenous injection of 0.4 mL solution for patients weighing 38-61 kg or 0.6 mL solution patients weighing 62-114 kg).
Receives: Drug: Sodium Chloride 9mg/mL

What is being measured

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

  1. High on-treatment platelet reactivity (HPR)

    HPR defined as platelet reactivity index (PRI) ≥50% using VASP analysis

    Measured: Two hours after the injection of either active drug or placebo

  2. Number of participants with serious adverse events

    Serious AE is any untoward medical occurrence that at any dose:

    • Results in death.
    • Is life-threatening at the time of the event.
    • Requires inpatient hospitalization.
    • Requires prolongation of existing hospitalization.
    • Results in persistent or significant disability/incapacity.
    • Is a congenital anomaly/birth defect.

    Measured: Within 48 hours after drug administration

Secondary outcomes (5)
  1. High on-treatment platelet reactivity

    Measured: One hour after the injection of either active drug or placebo

  2. Difference in ticagrelor and AR-C124910XX concentrations

    Measured: One and two hours after the injection of either active drug or placebo

  3. Change in patient pain according to visual analog scale

    Measured: One and two hours after the injection of either active drug or placebo

  4. Difference in ticagrelor and AR-C124910XX concentrations between patients with inferior STEMI and patients with anterior/lateral STEMI.

    Measured: One and two hours after the injection of either active drug or placebo

  5. Difference in high on-treatment platelet reactivity (HPR) between patients with inferior STEMI and patients with anterior/lateral STEMI.

    HPR defined as platelet reactivity index (PRI) ≥50% using VASP analysis

    Measured: One and two hours after the injection of either active drug or placebo

Timeline

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

  1. First posted24 Oct 2016 (estimated)
  2. Study startNov 2016
  3. Primary completionDec 2017
  4. Study completionDec 2017

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
82 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02942550
Sponsor's protocol ID
880526
Acronym
MOVEMENT
Status last verified
Apr 2018
First submitted
21 Sep 2016
Last updated
9 Apr 2018
Results posted
No
Data monitoring committee
No
Individual data sharing
No: Data will only be published on a group level.

Publications

  • Holm M, Tornvall P, Henareh L, Jensen U, Golster N, Alstrom P, Santos-Pardo I, Witt N, Fedchenko N, Venetsanos D, Beck O, van der Linden J. The MOVEMENT Trial. J Am Heart Assoc. 2019 Jan 22;8(2):e010152. doi: 10.1161/JAHA.118.010152.

    PubMed 30636504

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Methylnaltrexone bromide (Relistor®). and Sodium Chloride 9mg/mL in people with STEMI and Morphine, run by Karolinska University Hospital at 2 sites in Sweden.

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 3 inclusion and 10 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: finished, as of the sponsor's last update on 9 Apr 2018. 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 Sweden. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

High on-treatment platelet reactivity (HPR) (time frame: Two hours after the injection of either active drug or placebo). The study lists 2 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 NCT02942550, which also lists 1 linked publication.

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 9 Apr 2018.

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