A Randomized Trial of Imaging Selection Modalities for Stroke Thrombectomy (NO-SELECT)

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorXinqiao Hospital of Chongqing

About this trial

Several studies suggest that advanced multi-modal imaging with CTP should be used to screen late time window stroke patients for thrombectomy. However, NCCT is more accessible when comparing with CTP. It is unclear whether the NCCT-based ASPECTS can be used as an imaging criterion to screen patients for thrombectomy.

The newly published MR CLEAN-LATE and TENSION trials used NCCT or CTA, but still relied on ASPECTS scores to evaluate and select patients for endovascular therapy. However, different trials have different time windows. The aim of this trial was to assess the clinical outcomes of stroke patients with anterior large vessel occlusion who selected by simple imaging (NCCT) comparing via standard imaging screening strategy (CTP/MRI). The hypothesis is that simple imaging is non-inferior to standard imaging selection strategy in terms of achieving favorable outcomes.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Aged 18 years or older;

The interval time from last known well to hospital arrival is within 24 hours;

Acute stroke confirmed by clinical symptoms or imaging examination;

Field Assessment Stroke Triage for Emergency Destination (FAST ED) ≥4;

Disqualifiers

Allergy to radiographic contrast agents, or nitinol devices;

Currently pregnant or lactating (women patients);

Arterial tortuosity and/or other arterial disease that would prevent the device from reaching the target vessel;

Preexisting neurological or psychiatric disease that would confound the neurological functional evaluations;

Trial design

Design model

Parallel

Treatments tested in this trial

  • Simplified imaging strategy

    Other intervention

    NCCT and CTA will be used to screen patients for endovascular treatment

  • Standard imaging strategy

    Other intervention

    NCCT-ASPECTS (pc-ASPECTS), CTA, and CTP will be used to screen patients for endovascular treatment

Treatment groups

1,846 Participants
are divided into 2 treatment groups
Group A: Simple imagingExperimental treatment 1 intervention
Group B: Standard imagingActive comparator 1 intervention

Trial outcomes

Primary outcomes

1

favorable outcome at 90 days

defined as modified Rankin scale score of 0 to 3. Modified Rankin scale score (mRS): scores range from 0 to 6, with 0 indicating no disability, 1 no clinically significant disability, 2 slight disability, 3 moderate disability but able to walk unassisted, 4 moderately severe disability, 5 severe disability, and 6 death.

Time frame
90 days post-endovascular treatment

Secondary outcomes

1

symptomatic intracranial hemorrhage within 48 hours

symptomatic intracranial hemorrhage according to Heidelberg criteria

Time frame
within 48 hours post-endovascular treatment
2

mortality at 90 days

defined as the number of deaths observed divided by the number of subjects observed over the 90-day study period

Time frame
90 days post-endovascular treatment

Other outcomes

Sponsors and contacts

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Xinqiao Hospital of Chongqing

Lead sponsor

The First Affiliated Hospital of Hainan Medical University

Collaborator

Dalian Central Hospital

Collaborator

Huai'an First People's Hospital

Collaborator