ClinicalTrials.gg
TerminatedNCT04502745Updated May 10, 2024

A Study to Evaluate Endoscope-assisted, Minimally-invasive Cortical Access System for Chronic Subdural Evacuation

An interventional study of Minimally Invasive Cortical Access System (MICAS) in Chronic Subdural Hematoma, sponsored by Mayo Clinic. Terminated at 1 site in United States. Open to participants aged 55 Years and older. Per ClinicalTrials.gov, last updated 2024-05-10.

Sponsored by Mayo Clinic · Not applicable, Interventional, and Device feasibility

Why this study was terminated
Terminated due to lack of the flexible endoscope.

From the registry’s dates

  • Primary completion was Oct 2023, 3 years ago, and no results have been posted to the registry.
Phase
Not applicable
Study type
Interventional
Enrollment
6
Allocation
Not applicable
Ages
55 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 21 studies in Hematoma, Subdural, Chronic with a site in United States — 9 open to participants now, 9 under way, none of them phase 3. Hematoma, Subdural, Chronic · United States.

Enrollment
11th of 14
6 · median 35
Started
2020
with 2 others
No phase
10 of 21
4 open now
Registered
9th of 21
by date

Among the 21 studies in Hematoma, Subdural, Chronic with a site in United States, this one is the 11th largest by enrollment of the 14 interventional ones that give a count, is one of 3 that started in 2020, is one of 10 with no phase, and was the 9th registered.

Hematoma, Subdural, Chronic

112 studies on the registry are indexed under Hematoma, Subdural, Chronic; 49 are open to participants now.

Browse Hematoma, Subdural, Chronic studies →

Open to participants now

9 of the 21 studies in Hematoma, Subdural, Chronic with a site in United States are open now. Recruiting first, the newest first:

4 more — sign in →

All 9 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 35 Hematoma, Subdural, Chronic studies recruiting now, 26 (74%) set no upper age limit and 1 (3%) stops at 75 or younger; 1 takes children under 18; 1 takes healthy volunteers.

This study: 55 Years and older · all sexes · no healthy volunteers.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

Was this useful?
Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 21 studies in Hematoma, Subdural, Chronic with a site in United States, or all of them as a file.
02

Study summary

The purpose of this study is to evaluate a less-invasive alternative to the currently available method of removing aging blood in the subdural space.

03

Conditions studied

  • Chronic Subdural Hematoma
04

Who can participate

Ages eligible
55 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Must be 55 years of age or greater.
  • Have a clinically symptomatic chronic subdural hematoma greater than 1 cm in maximal thickness and be judged clinically to need subdural evacuation.

Exclusion criteria

Exclusion Criteria:

  • Failure to obtain consent.
  • Vulnerable study population.
  • Any need for chronic anticoagulation.
  • Pregnancy (verified by pregnancy testing at screening or medical history of a hysterectomy, oophorectomy, or ).Prior surgery for subdural hematoma.
  • Glasgow Coma Scale (GCS) less than 8.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

05

Study design

Phase
Not applicable
Primary purpose
Device feasibility
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
6 participants (actual)

Study arms

  • Experimental
    Treatment Group

    During clinically indicated surgery for subdural hematoma, the patient will undergo a single burr hole evacuation with the MICAS device with endoscopic assistance.

    Device: Minimally Invasive Cortical Access System (MICAS)

Interventions

  • DeviceMinimally Invasive Cortical Access System (MICAS)

    Temporary surgical tool that provides access to the sub-dural space through the cranium.

06

What researchers measure

Primary outcomes

  1. Incidence of all serious adverse events

    Number of adverse events including unanticipated adverse device effects

    Time frame: 3 years

07

Study locations

1 site
  • Mayo Clinic in Rochester
    Rochester, Minnesota 55905, United States
08

References and documents

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Oct 2020 to primary completion in Oct 2023, 36 months.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 4, 2020
First posted
Aug 6, 2020
StartActual
Oct 1, 2020
Primary completionActual
Oct 23, 2023
CompletionActual
Oct 23, 2023
Last update
May 10, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 10, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04502745
Lead sponsor
Mayo Clinic
Responsible party
Jamie J. Van Gompel (Principal Investigator, Mayo Clinic) — Principal investigator
First posted
Aug 6, 2020
Start date
Oct 1, 2020
Primary completion
Oct 23, 2023
Completion
Oct 23, 2023
Last update
May 10, 2024

Study contacts

Jamie Van Gompel, MD
principal investigator · Mayo Clinic

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in May 2024. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion