Working…
COVID-19 is an emerging, rapidly evolving situation.
Get the latest public health information from CDC: https://www.coronavirus.gov.

Get the latest research information from NIH: https://www.nih.gov/coronavirus.
ClinicalTrials.gov
ClinicalTrials.gov Menu

Differential Metabolic Signature of Stroke Patients Undergoing Thrombolysis (DETECT)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT03443245
Recruitment Status : Recruiting
First Posted : February 23, 2018
Last Update Posted : July 8, 2019
Sponsor:
Information provided by (Responsible Party):
Thomas Krieg, Cambridge University Hospitals NHS Foundation Trust

Tracking Information
First Submitted Date February 16, 2018
First Posted Date February 23, 2018
Last Update Posted Date July 8, 2019
Actual Study Start Date July 3, 2019
Estimated Primary Completion Date December 31, 2019   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures
 (submitted: February 16, 2018)
  • Measurement of succinate in the same patients before and immediately after thrombolysis [ Time Frame: Up to 12 months ]
  • Baseline succinate measurement from age-matched healthy volunteers [ Time Frame: Up to 12 months ]
Original Primary Outcome Measures Same as current
Change History
Current Secondary Outcome Measures
 (submitted: February 16, 2018)
Assessment of pre and post-thrombolysis blood from stroke patients vs healthy controls [ Time Frame: Up to 12 months ]
Bloods will be screened using a metabolomics scanner to identify if there are any significant changes in the data
Original Secondary Outcome Measures Same as current
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title Differential Metabolic Signature of Stroke Patients Undergoing Thrombolysis
Official Title Differential Metabolic Signature of Stroke Patients Undergoing Thrombolysis Compared to Healthy Controls
Brief Summary

Currently, there is no reliable biomarker for stroke, meaning that treatment is often delayed and patients are often left with a disability. Stroke is one of the largest causes of mortality (death) and morbidity (disease) in the UK and affects around 120 and 15 people per 100,000 population. This has huge economic implications, with around £9 billion a year being spent on stroke in the UK alone, and health and social care costs accounting for half of this amount. Productivity losses (i.e. income costs) are estimated at £1.33 billion and benefit payments total £840 million per year.

Previous studies involving heart attack patients have suggested that succinate (a biomarker) levels rise after reperfusion (reoxygenation) of the heart tissue and in the context of ischaemia (i.e. when a restriction of blood supply to the heart has caused a heart attack and the tissue has been reoxygenated to improve blood flow around the body). Malonate is a therapeutic option to block this rise in succinate and reduce any potential resulting damage. Animal studies support these findings and have further shown that malonate prevents ischaemic brain damage and reduces the succinate increase in tissue.

However, there is currently no pre-clinical data for the release of succinate into blood, nor for stroke. This study aims to explore whether elevated succinate levels are present in stroke patients having thrombolysis (brain reperfusion). If we can show that elevated succinate levels are attributed to stroke (and not a result of thrombolysis), it might be possible to identify a therapeutic intervention at baseline for these patients and this reduce disability in all stroke patients, and healthcare costs in turn.

Detailed Description

There are around 150,000 incidents of stroke every year in the UK alone. By the age of 75, 1 in 5 women and 1 in 6 men will have had a stroke; 26% of which will have occurred before the age of 65. Moreover, over half of all stroke survivors are left with a disability and 41% of these are discharged from hospital requiring help with daily activities. Without a reliable biomarker for stroke patients, the development of a therapeutic intervention at baseline which has the capability to reduce disability in stroke patients is not possible. There is a dire need for further research into stroke. In 2012, £56 million was spent on stroke-related care/research, compared to £544 million on cancer research and £166 million on heart disease.

Studies involving heart attack patients suggest that succinate could be used as a biomarker for stroke patients. Furthermore, the current therapeutic option used to block the rise in succinate levels, malonate, has been shown to prevent ischaemic brain damage in animal studies. No work to date has explored this phenomenon in humans with stroke and therefore this study has huge potential to bridge the gap in helping to treat stroke patients in the future and thus reduce healthcare costs.

The DETECT study is a pilot study and has been specifically designed to be as simple as possible. For stroke patients undergoing thrombolysis, they will already have a cannula inserted to aid with the procedure. We propose that research bloods could be taken from this same cannula to reduce the burden to the patient. Wherever possible we will conduct the safety follow-up with stroke patients whilst they are still an inpatient at the hospital, to again reduce the burden to the patient.

Study Type Observational
Study Design Observational Model: Case-Control
Time Perspective: Prospective
Target Follow-Up Duration Not Provided
Biospecimen Retention:   Samples Without DNA
Description:
Whole blood samples
Sampling Method Non-Probability Sample
Study Population Secondary care (stroke patients via hospital Accident and Emergency unit and stroke wards) Healthy volunteers - invitation to participate from posters displayed in and around secondary care setting
Condition Stroke, Ischemic
Intervention Not Provided
Study Groups/Cohorts
  • Stroke patients
    Patient will have thrombolysis treatment as part of their standard care.
  • Healthy Volunteers
    Healthy volunteers to act as control group for stroke patients.
Publications * Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status Recruiting
Estimated Enrollment
 (submitted: February 16, 2018)
70
Original Estimated Enrollment Same as current
Estimated Study Completion Date March 2020
Estimated Primary Completion Date December 31, 2019   (Final data collection date for primary outcome measure)
Eligibility Criteria

Inclusion Criteria (stroke patients):

  • Be aged 18 years or over
  • Present at Addenbrooke's Hospital A&E with a stroke (ischaemic stroke)
  • Time of onset of confirmed stroke symptoms within 4 hours of arrival in ED
  • Be eligible for thrombolysis
  • Provide informed consent either prior to thrombolysis or after the initial emergency; or personal or nominated consultee declaration following the emergency

Inclusion Criteria (healthy volunteers):

  • Be aged 18 years or over
  • Provide informed consent
  • Be healthy as determined by clinical history and examination by the investigator, a brief physical examination must be unremarkable.

Exclusion Criteria (stroke patients):

  • Patients qualifying for thrombolysis but who do not give consent
  • Patients under the age of 18
  • Patients who are currently actively involved with another clinical trial (including observational studies)

Exclusion Criteria (healthy volunteers):

  • Unable to provide informed written consent
  • Participants under the age of 18
  • Participants who are currently actively involved with another clinical trial (including observational studies)
  • Any medical history or clinically relevant abnormality (from medical notes) that is deemed by the principal investigator and/or suitably qualified delegate to make the subject ineligible for inclusion
Sex/Gender
Sexes Eligible for Study: All
Ages 18 Years and older   (Adult, Older Adult)
Accepts Healthy Volunteers Yes
Contacts
Contact: Thomas Krieg, MD 01223762584 tk382@medschl.cam.ac.uk
Contact: Gemma Bocking gemma.bocking@addenbrookes.nhs.uk
Listed Location Countries United Kingdom
Removed Location Countries  
 
Administrative Information
NCT Number NCT03443245
Other Study ID Numbers A094594
Has Data Monitoring Committee Yes
U.S. FDA-regulated Product
Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
IPD Sharing Statement
Plan to Share IPD: No
Plan Description: No IPD will be shared with researchers outside of the study team
Responsible Party Thomas Krieg, Cambridge University Hospitals NHS Foundation Trust
Study Sponsor Cambridge University Hospitals NHS Foundation Trust
Collaborators Not Provided
Investigators
Principal Investigator: Thomas Krieg, MD Cambridge University Hospital NHS Foundation Trust
PRS Account Cambridge University Hospitals NHS Foundation Trust
Verification Date July 2019