Peripheral Arterial DiseaseNCT00224328
Measurement of Tissue Oxygen Saturation in Chronic Critical Limb Ischemia
An observational study of Peripheral Arterial Disease, run by ViOptix Canada at 1 site in Canada.
Trial summary
Near-infrared spectroscopy can be used to determine the relative oxygen saturation in tissues up to 2cm below the skin. It has been investigated, with success, in cerebral, gastrointestinal, and muscle tissue, and shows promise in numerous indications involving tissue ischemia. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Peripheral Arterial Disease
- What is being tested?
- ODISsey Tissue Oximeter
- Type of treatment
- Medical device
- How many people
- 100 participants
- Where
- 1 siteCanada
- Study dates
- Aug 2005to Jan 2007
- 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 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- >= 18 years old
- PAD
- Chronic Critical Limb Ischemia
- requiring surgical intervention
- able to give informed consent
Who cannot join
- emergent/urgent requirement for surgical intervention
- requiring surgical intervention due to acute traumatic injury
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Measurement of Tissue Oxygen Saturation in Chronic Critical Limb Ischemia: A Phase Iia, Non-Randomized Study Using the ODISsey Tissue Oximeter to Evaluate the Correlation Between Tissue Oxygen Saturation and Symptom Resolution in Patients With Chronic Critical Limb Ischemia Undergoing Treatment Interventions
Near-infrared spectroscopy can be used to determine the relative oxygen saturation in tissues up to 2cm below the skin. It has been investigated, with success, in cerebral, gastrointestinal, and muscle tissue, and shows promise in numerous indications involving tissue ischemia. In the current study, we propose to examine one hundred patients requiring either bypass or angioplasty due to chronic critical limb ischemia resulting from peripheral arterial disease. We intend to challenge patients before and after the intervention, using either an inflated blood pressure cuff or toe raises, to determine if oxygen saturation recovery time in the affected limb is correlated with symptom resolution (i.e. treatment success). Near-infrared spectroscopy will be performed using the ODISsey tissue oximeter developed by ViOptix, Inc. The proposed study will take approximately one year to complete enrolment, and has a follow-up period of 6 months post-intervention.
Study Hypothesis: Knowledge of tissue oxygen saturation enhances clinical decision making in patients with chronic critical limb ischemia.
- Conditions
- Peripheral Arterial Disease
- Being tested
- ODISsey Tissue Oximeter
- Keywords
- Tissue Oxygen Saturation, Peripheral Arterial Disease, Critical Limb Ischemia, Near-infrared Spectroscopy
- Medical subject headings
- Peripheral Arterial Disease, Chronic Limb-Threatening Ischemia
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
ODISsey Tissue OximeterDevice
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted22 Sep 2005 (estimated)
- Study startAug 2005
- Study completionJan 2007
Why it stopped: The results were not able to be consistantly reproduced. Thus the trial was terminated
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (10)Papers the sponsor has linked to this study.
- Other trials for Peripheral Arterial DiseaseStudies of the same condition, open and under way.
- 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
- Defined population
- Time perspective
- Prospective
- Enrolment
- 100 participants (estimated)
Sponsor and investigators
- Lead sponsor
- ViOptix Canada
- Sponsor type
- Industry (pharma, biotech, devices)
- Investigators
- Thomas Lindsay, FRCSC, FACS, Principal investigator, Toronto General Hospital, University Health Network
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00224328
- Sponsor's protocol ID
- VIO-UHN-001
- Status last verified
- Sep 2007
- First submitted
- 13 Sep 2005
- Last updated
- 12 Sep 2007
- Results posted
- No
Publications
Kooijman HM, Hopman MT, Colier WN, van der Vliet JA, Oeseburg B. Near infrared spectroscopy for noninvasive assessment of claudication. J Surg Res. 1997 Sep;72(1):1-7. doi: 10.1006/jsre.1997.5164.
PubMed 9344707Simonson SG, Piantadosi CA. Near-infrared spectroscopy. Clinical applications. Crit Care Clin. 1996 Oct;12(4):1019-29. doi: 10.1016/s0749-0704(05)70290-6.
PubMed 8902382Mancini DM, Bolinger L, Li H, Kendrick K, Chance B, Wilson JR. Validation of near-infrared spectroscopy in humans. J Appl Physiol (1985). 1994 Dec;77(6):2740-7. doi: 10.1152/jappl.1994.77.6.2740.
PubMed 7896615Mohler LR, Styf JR, Pedowitz RA, Hargens AR, Gershuni DH; New Collective Author. Intramuscular deoxygenation during exercise in patients who have chronic anterior compartment syndrome of the leg. J Bone Joint Surg Am. 1997 Jun;79(6):844-9. doi: 10.2106/00004623-199706000-00007.
PubMed 9199381Cheatle TR, Potter LA, Cope M, Delpy DT, Coleridge Smith PD, Scurr JH. Near-infrared spectroscopy in peripheral vascular disease. Br J Surg. 1991 Apr;78(4):405-8. doi: 10.1002/bjs.1800780408.
PubMed 2032098Jarm T, Kragelj R, Liebert A, Lukasiewitz P, Erjavec T, Preseren-Strukelj M, Maniewski R, Poredos P, Miklavcic D. Postocclusive reactive hyperemia in healthy volunteers and patients with peripheral vascular disease measured by three noninvasive methods. Adv Exp Med Biol. 2003;530:661-9. doi: 10.1007/978-1-4615-0075-9_66.
PubMed 14562764Lee BY, Ostrander E, Karmakar M, Frenkel L, Herz B. Noninvasive quantification of muscle oxygen in subjects with and without claudication. J Rehabil Res Dev. 1997 Jan;34(1):44-51.
PubMed 90216248. TransAtlantic Inter-Society Consensus Document. (living document, 1999) Management of Peripheral Arterial Disease: Critical Limb Ischemia. http://www.tasc-pad.org/ Arterial Disease. J Vasc Surg; Oct; 38(4): 724-9.
Reifsnyder T, Grossman JP, Leers SA. Limb loss after lower extremity bypass. Am J Surg. 1997 Aug;174(2):149-51. doi: 10.1016/s0002-9610(97)90074-x.
PubMed 9293832Troeng T, Bergqvist D, Janson L. Incidence and causes of adverse outcomes of operation for chronic ischaemia of the leg. Eur J Surg. 1994 Jan;160(1):17-25.
PubMed 8186308
Study at a glance
From the registry record, last updated by the sponsor on 12 Sep 2007. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Measurement of Tissue Oxygen Saturation in Chronic Critical Limb Ischemia: A Phase Iia, Non-Randomized Study Using the ODISsey Tissue Oximeter to Evaluate the Correlation Between Tissue Oxygen Saturation and Symptom Resolution in Patients With Chronic Critical Limb Ischemia Undergoing Treatment Interventions
- ClinicalTrials.gov ID
- NCT00224328
- Acronym / sponsor ID
- VIO-UHN-001
- Conditions
- Peripheral Arterial Disease
- Keywords
- Tissue Oxygen Saturation, Peripheral Arterial Disease, Critical Limb Ischemia, Near-infrared Spectroscopy
- Study type
- Observational
- Recruitment status
- TerminatedReason stopped: The results were not able to be consistantly reproduced. Thus the trial was terminated
- Enrolment
- 100 participants (estimated)
- Lead sponsor
- ViOptix CanadaIndustry (pharma, biotech, devices)
- Study start
- Aug 2005
- Study completion
- Jan 2007 (actual)
- First posted
- 22 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.
Near-infrared spectroscopy can be used to determine the relative oxygen saturation in tissues up to 2cm below the skin. It has been investigated, with success, in cerebral, gastrointestinal, and muscle tissue, and shows promise in numerous indications involving tissue ischemia. In the current study, we propose to examine one hundred patients requiring either bypass or angioplasty due to chronic critical limb ischemia resulting from peripheral arterial disease. We intend to challenge patients before and after the intervention, using either an inflated blood pressure cuff or toe raises, to determine if oxygen saturation recovery time in the affected limb is correlated with symptom resolution (i.e. treatment success). Near-infrared spectroscopy will be performed using the ODISsey tissue oximeter developed by ViOptix, Inc. The proposed study will take approximately one year to complete enrolment, and has a follow-up period of 6 months post-intervention.
Study Hypothesis: Knowledge of tissue oxygen saturation enhances clinical decision making in patients with chronic critical limb ischemia.
Study design
- Observational model
- Defined population
- Time perspective
- Prospective
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- >= 18 years old
- PAD
- Chronic Critical Limb Ischemia
- requiring surgical intervention
- able to give informed consent
Key exclusion criteria (2 listed)
- emergent/urgent requirement for surgical intervention
- requiring surgical intervention due to acute traumatic injury
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| ODISsey Tissue Oximeter | Device | – |
Primary outcome
Not reported in the source record.
Results and safety
The study was stopped early (reason given: The results were not able to be consistantly reproduced. Thus the trial was terminated). Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 Sep 2007.
- Background: PubMed 9344707Kooijman HM, Hopman MT, Colier WN, van der Vliet JA, Oeseburg B. Near infrared spectroscopy for noninvasive assessment of claudication. J Surg Res. 1997 Sep;72(1):1-7. doi: 10.1006/jsre.1997.5164.
- Background: PubMed 8902382Simonson SG, Piantadosi CA. Near-infrared spectroscopy. Clinical applications. Crit Care Clin. 1996 Oct;12(4):1019-29. doi: 10.1016/s0749-0704(05)70290-6.
- Background: PubMed 7896615Mancini DM, Bolinger L, Li H, Kendrick K, Chance B, Wilson JR. Validation of near-infrared spectroscopy in humans. J Appl Physiol (1985). 1994 Dec;77(6):2740-7. doi: 10.1152/jappl.1994.77.6.2740.
- Background: PubMed 9199381Mohler LR, Styf JR, Pedowitz RA, Hargens AR, Gershuni DH; New Collective Author. Intramuscular deoxygenation during exercise in patients who have chronic anterior compartment syndrome of the leg. J Bone Joint Surg Am. 1997 Jun;79(6):844-9. doi: 10.2106/00004623-199706000-00007.
- Background: PubMed 2032098Cheatle TR, Potter LA, Cope M, Delpy DT, Coleridge Smith PD, Scurr JH. Near-infrared spectroscopy in peripheral vascular disease. Br J Surg. 1991 Apr;78(4):405-8. doi: 10.1002/bjs.1800780408.
- Background: PubMed 14562764Jarm T, Kragelj R, Liebert A, Lukasiewitz P, Erjavec T, Preseren-Strukelj M, Maniewski R, Poredos P, Miklavcic D. Postocclusive reactive hyperemia in healthy volunteers and patients with peripheral vascular disease measured by three noninvasive methods. Adv Exp Med Biol. 2003;530:661-9. doi: 10.1007/978-1-4615-0075-9_66.
- Background: PubMed 9021624Lee BY, Ostrander E, Karmakar M, Frenkel L, Herz B. Noninvasive quantification of muscle oxygen in subjects with and without claudication. J Rehabil Res Dev. 1997 Jan;34(1):44-51.
- Background8. TransAtlantic Inter-Society Consensus Document. (living document, 1999) Management of Peripheral Arterial Disease: Critical Limb Ischemia. http://www.tasc-pad.org/ Arterial Disease. J Vasc Surg; Oct; 38(4): 724-9.
- Background: PubMed 9293832Reifsnyder T, Grossman JP, Leers SA. Limb loss after lower extremity bypass. Am J Surg. 1997 Aug;174(2):149-51. doi: 10.1016/s0002-9610(97)90074-x.
- Background: PubMed 8186308Troeng T, Bergqvist D, Janson L. Incidence and causes of adverse outcomes of operation for chronic ischaemia of the leg. Eur J Surg. 1994 Jan;160(1):17-25.
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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.
Thomas Lindsay, FRCSC, FACS principal investigator
Toronto General Hospital, University Health Network
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 Peripheral Arterial Disease, run by ViOptix Canada at 1 site in Canada.
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 5 inclusion and 2 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: stopped early, as of the sponsor's last update on 12 Sep 2007. 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 Canada. 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 was stopped early (reason given: The results were not able to be consistantly reproduced. Thus the trial was terminated). Results are not available in the source record.
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.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00224328, which also lists 10 linked publications.
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 12 Sep 2007.