IschemiaSQUIDNCT00179036
Biomagnetic Signals of Intestinal Ischemia II
An observational study of Ischemia, run by Vanderbilt University Medical Center at 1 site in United States.
Trial summary
The lack of blood flow to the small intestine causes mesenteric ischemia. Using a Superconducting QUantum Interference Device (SQUID) which measures the magnetic field of the small intestine, we are hoping to identify abnormalities without surgical intervention. Read more about this study
- Who is it for?
- Ages 18 to 80 yearsHealthy volunteers can take part
- Conditions the study is for
- Ischemia
- How many people
- 17 participants
- Where
- 1 siteUnited States
- Study dates
- Jan 2000to Dec 2015
- Phase
- Observational
- 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 80 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Study population: primary care clinic
Who may be able to join
- Normal subjects and those with diagnosed mesenteric ischemia
Who cannot join
- Subjects who report a tendency toward claustrophobia
Trial locations and contacts
1 site in 1 country.
United States1 site
Vanderbilt University Medical Center
Nashville, Tennessee, 37232
About this study
The lack of blood flow to the small intestine causes mesenteric ischemia. Using a Superconducting QUantum Interference Device (SQUID) which measures the magnetic field of the small intestine, we are hoping to identify abnormalities without surgical intervention.
Read the detailed description
The electrical activity of the small intestine may contain important information that will help us diagnose gastrointestinal diseases. The major impediment to reducing mortality of mesenteric ischemia is the lack of a noninvasive diagnostic test that identifies the syndrome before extensive necrosis occurs. Mesenteric ischemia is caused by the lack of blood flow to the intestine. The Superconducting QUantum Interference Device (SQUID) measures the magnetic field of the intestinal smooth muscle. By comparing normal smooth muscle and that of patients with mesenteric ischemia, the investigators hope to identify abnormal disease states without surgery.
- Conditions
- Ischemia
- Keywords
- Blood supply, Mesentery
- Medical subject headings
- Ischemia
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Good blood flow | Group without any ischemia to the small intestine | |
| Poor blood flow | Group with partial ischemia to the small intestine |
What is being measured
The primary outcome is the main question the study is designed to answer.
To observe a difference in the magnetic activity between the normal and diseased smooth muscle of the small intestine
Measured: 2010
Secondary outcomes (1)
Create mathematical and computer models of electrical activity of smooth muscle
Measured: 2010
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 Sep 2005 (estimated)
- Study startJan 2000
- Primary completionDec 2015
- Study completionDec 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for IschemiaStudies of the same condition, open and under way.
- More trials run by Vanderbilt University Medical CenterThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Enrolment
- 17 participants (actual)
Sponsor and investigators
- Lead sponsor
- Vanderbilt University Medical Center
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Alan Bradshaw, Vanderbilt University Medical Center
- Investigators
- William O. Richards, MD, Principal investigator, Vanderbilt University Medical Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00179036
- Sponsor's protocol ID
- 060426
- Other IDs
- R01DK058197
- Acronym
- SQUID
- Status last verified
- Apr 2017
- First submitted
- 13 Sep 2005
- Last updated
- 7 Apr 2017
- Results posted
- No
- Data monitoring committee
- No
Publications
Somarajan S, Muszynski ND, Cheng LK, Bradshaw LA, Naslund TC, Richards WO. Noninvasive biomagnetic detection of intestinal slow wave dysrhythmias in chronic mesenteric ischemia. Am J Physiol Gastrointest Liver Physiol. 2015 Jul 1;309(1):G52-8. doi: 10.1152/ajpgi.00466.2014. Epub 2015 Apr 30.
PubMed 25930082
Study at a glance
From the registry record, last updated by the sponsor on 7 Apr 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Biomagnetic Signals of Intestinal Ischemia II
- ClinicalTrials.gov ID
- NCT00179036
- Acronym / sponsor ID
- SQUID / 060426
- Conditions
- Ischemia
- Keywords
- Blood supply, Mesentery
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 17 participants (actual)
- Lead sponsor
- Vanderbilt University Medical CenterUniversity, hospital or other
- Collaborators
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- Study start
- Jan 2000
- Primary completion
- Dec 2015 (actual)
- Study completion
- Dec 2015 (actual)
- First posted
- 15 Sep 2005 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The lack of blood flow to the small intestine causes mesenteric ischemia. Using a Superconducting QUantum Interference Device (SQUID) which measures the magnetic field of the small intestine, we are hoping to identify abnormalities without surgical intervention.
Detailed description
The electrical activity of the small intestine may contain important information that will help us diagnose gastrointestinal diseases. The major impediment to reducing mortality of mesenteric ischemia is the lack of a noninvasive diagnostic test that identifies the syndrome before extensive necrosis occurs. Mesenteric ischemia is caused by the lack of blood flow to the intestine. The Superconducting QUantum Interference Device (SQUID) measures the magnetic field of the intestinal smooth muscle. By comparing normal smooth muscle and that of patients with mesenteric ischemia, the investigators hope to identify abnormal disease states without surgery.
Study design
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Good blood flow | – | –Group without any ischemia to the small intestine |
| Poor blood flow | – | –Group with partial ischemia to the small intestine |
Who may qualify
- Ages
- 18 to 80 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- primary care clinic
Key inclusion criteria (1 listed)
- Normal subjects and those with diagnosed mesenteric ischemia
Key exclusion criteria (1 listed)
- Subjects who report a tendency toward claustrophobia
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
To observe a difference in the magnetic activity between the normal and diseased smooth muscle of the small intestine
Time frame: 2010
1 secondary outcome
Create mathematical and computer models of electrical activity of smooth muscle
Time frame: 2010
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 7 Apr 2017.
- Derived from this study: PubMed 25930082Somarajan S, Muszynski ND, Cheng LK, Bradshaw LA, Naslund TC, Richards WO. Noninvasive biomagnetic detection of intestinal slow wave dysrhythmias in chronic mesenteric ischemia. Am J Physiol Gastrointest Liver Physiol. 2015 Jul 1;309(1):G52-8. doi: 10.1152/ajpgi.00466.2014. Epub 2015 Apr 30.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
William O. Richards, MD principal investigator
Vanderbilt University Medical Center
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Ischemia, run by Vanderbilt University Medical Center at 1 site in United States.
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 1 inclusion and 1 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 7 Apr 2017. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
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?
To observe a difference in the magnetic activity between the normal and diseased smooth muscle of the small intestine (time frame: 2010). 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 NCT00179036, 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 7 Apr 2017.