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AzTrials

Iliac Artery StenosisPhase 3ORIONNCT00896337

EPIC Nitinol Stent System in the Treatment of Atherosclerotic Lesions in Iliac Arteries

A Phase 3 study testing Epic™ Nitinol Stent System, Anti-platelet therapy and Anti-coagulation therapy in people with Iliac Artery Stenosis, run by Boston Scientific Corporation at 28 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The ORION study is being conducted to determine whether the Epic™ Nitinol Stent for primary stenting of iliac atherosclerotic lesions shows acceptable performance at 9 months. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Iliac Artery Stenosis
What is being tested?
Epic™ Nitinol Stent System, Anti-platelet therapy and Anti-coagulation therapy
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
125 participants
Where
28 sitesUnited States
Study dates
May 2009to Dec 2013
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

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

  • Documented chronic, symptomatic iliac artery atherosclerotic disease (Rutherford/Becker category 1, 2, 3 or 4)
  • Lifestyle-limiting claudication or rest pain
  • De novo or restenotic lesions in the common and/or external iliac artery
  • Subjects with bilateral disease may have only one target lesion treated per side
  • Two target lesions may be treated with a maximum of two stents (if two target lesions are treated, each lesion must be covered with a maximum of one stent)
  • Length of diseased segment(s) <=13 cm and treatment is planned with no more than 2 overlapped Epic™ stents
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  • Baseline diameter stenosis >= 50% (operator visual assessment)
  • Reference vessel diameter >= 5 mm and <=11 mm
  • At least one sufficient ipsilateral infrapopliteal run-off vessel
  • Origin of profunda femoris artery is patent

Who cannot join

  • Target vessel with in-stent restenosis
  • Acute critical limb ischemia
  • Tissue loss (Rutherford/Becker category 5 or 6)
  • Any major amputations to the target limb
  • Any minor amputation of the target limb in the last 12 months. If a minor amputation occurred greater than 12 months, stump needs to be completely healed.
  • Life expectancy less than 24 months due to other medical co-morbid condition(s) that could limit the subject's ability to participate in the trial, limit the subject's compliance with the follow-up requirements, or impact the scientific integrity of the trial
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  • Known hypersensitivity or contraindication to contrast dye that, in the opinion of the investigator, cannot be adequately pre-medicated.
  • Intolerance to antiplatelet, anticoagulant, or thrombolytic medications
  • Platelet count < 150,000 mm3 or > 600,000 mm3
  • Serum creatinine > 2.0 mg/dL
  • Dialysis-dependent end stage renal disease
  • Pregnancy
  • Current participation in another drug or device trial that has not completed the primary endpoint or that may potentially confound the results of this trial
  • Known allergy to Nitinol
  • Presence of arterial lesions (with the exception of renal, carotid or short, focal SFA lesions) requiring intervention within 30 days of the index procedure - Superficial femoral artery occlusion in the limb supplied by target vessel
  • Heavily calcified and/or excessively tortuous lesions in the target vessel as determined by angiography
  • Target lesion is within or near an aneurysm
  • Persistent, intraluminal thrombus of the proposed target lesion post-thrombolytic therapy
  • Perforated vessel as evidenced by extravasation of contrast media
  • Vascular graft, aneurysm or postsurgical stenosis of the target vessel
  • Multiple lesions in the same target vessel unable to be treated with a maximum of two stents

Trial locations and contacts

28 sites in 1 country.

28 sites in 1 country

United States28 sites
  • University of Michigan

    Ann Arbor, Michigan, 48109

  • Piedmont Hospital

    Atlanta, Georgia, 30309

  • Brandon Regional Hospital

    Brandon, Florida, 33511

  • Fletcher Allen Health Care

    Burlington, Vermont, 05401

  • Mid-Carolina Cardiology - Presbyterian Hospital

    Charlotte, North Carolina, 28204

  • Erlanger Medical Center

    Chattanooga, Tennessee, 37403

  • Cleveland Clinic

    Cleveland, Ohio, 44195

  • Ohio State University Medical Center

    Columbus, Ohio, 43210

  • Grant Medical Center

    Columbus, Ohio, 43215

  • VA North Texas Health Care System

    Dallas, Texas, 75216

  • Trinity Terrace Park

    Davenport, Iowa, 52803

  • MeritCare Hospital

    Fargo, North Dakota, 58102

  • Holy Cross Hospital

    Fort Lauderdale, Florida, 33308

  • Parkview Hospital-Parkview Research Center

    Fort Wayne, Indiana, 46805

  • St. Vincent's Hospital

    Indianapolis, Indiana, 46290

  • Wellstar Kennestone Hospital

    Marietta, Georgia, 46805

  • St. Thomas Research Institute

    Nashville, Tennessee, 37205

  • Mount Sinai Medical Center

    New York, New York, 10029

  • Advocate Christ Medical Center

    Oak Lawn, Illinois, 60453

  • Mediquest Research at Munroe Regional Medical Center

    Ocala, Florida, 34471

  • University of Oklahoma Health Science Center

    Oklahoma City, Oklahoma, 73104

  • UPMC - Shadyside Hospital

    Pittsburgh, Pennsylvania, 15232

  • Rhode Island Hospital

    Providence, Rhode Island, 02903

  • Wake Medical Center

    Raleigh, North Carolina, 27610

  • North Memorial Medical Center

    Robbinsdale, Minnesota, 55422

  • Baptist Hospital of San Antonio

    San Antonio, Texas, 78205

  • St. Joseph's Hospital

    Tucson, Arizona, 85710

  • York Hospital

    York, Pennsylvania, 17405

Other trials in United States

About this study

Official title: A Boston Scientific Trial of the EPIC™ Nitinol Stent System in the Treatment of Atherosclerotic Lesions in Iliac Arteries

The ORION study is being conducted to determine whether the Epic™ Nitinol Stent for primary stenting of iliac atherosclerotic lesions shows acceptable performance at 9 months.

Read the detailed description

ORION is a prospective, single arm, non-randomized, multicenter study. A subject could receive a maximum of 2 study stents for up to 2 target lesions. A maximum of 1 non-target lesion in 1 non-target vessel could be treated with a commercially approved treatment during the index procedure.

Being tested
Epic™ Nitinol Stent System, Anti-platelet therapy, Anti-coagulation therapy
Keywords
iliac artery stenosis, claudication, atherosclerotic iliac disease, peripheral vascular disease
Medical subject headings
Intermittent Claudication, Peripheral Vascular Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Epic™ Nitinol Stent SystemDevice

    The Epic™ Nitinol Stent System is comprised of two components: the implantable nitinol endoprosthesis and the stent delivery system.

  • Anti-platelet therapyDrug

    Investigators must prescribe concomitant anti-platelet medication consistent with current clinical practice. Anti-platelet therapy should be administered preprocedure and continued throughout participation in the trial.

  • Anti-coagulation therapyDrug

    Anti-coagulation therapy must be administered during the procedure consistent with current clinical practice.

Study groups in NCT00896337
Study groupRoleWhat they receive
ORIONExperimentalAll subjects who meet the inclusion criteria and are enrolled in this trial will be treated with iliac artery stenting with the Epic™ Nitinol Stent System.
Receives: Device: Epic™ Nitinol Stent System; Drug: Anti-platelet therapy; Drug: Anti-coagulation therapy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Device- and/or Procedure-related Major Adverse Events (MAE)

    MAE is defined as any device-related or index procedure-related death within 30 days, myocardial infarction during index hospitalization, target vessel revascularization through 9 months, or amputation of the index limb through 9 months

    Measured: 9 Months

Secondary outcomes (63)
  1. Death

    Death is classified as follows. Cardiac death: death due to immediate cardiac cause, death of unknown cause is classified as cardiac death, including all procedure related deaths including those related to concomitant treatment; Vascular death: death due to cerebrovascular disease, pulmonary embolism, ruptured aortic aneurysm, dissecting aneurysm, or other vascular cause; Non-cardiovascular death: any death not covered by the above definitions

    Measured: 30 Days

  2. Death

    Death is classified as follows. Cardiac death: death due to immediate cardiac cause; death of unknown cause is classified as cardiac death, including all procedure related deaths including those related to concomitant treatment; Vascular death: death due to cerebrovascular disease, pulmonary embolism, ruptured aortic aneurysm, dissecting aneurysm, or other vascular cause; Non-cardiovascular death: any death not covered by the above definitions

    Measured: 9 Months

  3. Death

    Death is classified as follows. Cardiac death: death due to immediate cardiac cause; death of unknown cause is classified as cardiac death, including all procedure related deaths including those related to concomitant treatment; Vascular death: death due to cerebrovascular disease, pulmonary embolism, ruptured aortic aneurysm, dissecting aneurysm, or other vascular cause; Non-cardiovascular death: any death not covered by the above definitions

    Measured: 1 Year

  4. Death

    Death is classified as follows. Cardiac death: death due to immediate cardiac cause; death of unknown cause is classified as cardiac death, including all procedure related deaths including those related to concomitant treatment; Vascular death: death due to cerebrovascular disease, pulmonary embolism, ruptured aortic aneurysm, dissecting aneurysm, or other vascular cause; Non-cardiovascular death: any death not covered by the above definitions

    Measured: 2 Years

  5. Death

    Death is classified as follows. Cardiac death: death due to immediate cardiac cause; death of unknown cause is classified as cardiac death, including all procedure related deaths including those related to concomitant treatment; Vascular death: death due to cerebrovascular disease, pulmonary embolism, ruptured aortic aneurysm, dissecting aneurysm, or other vascular cause; Non-cardiovascular death: any death not covered by the above definitions

    Measured: 3 Years

  6. Amputation of Index Limb

    Major amputation: amputation of the lower limb at the ankle level or above Minor amputation: amputation of forefoot or toes

    Measured: 9 Months

  7. Amputation of Index Limb

    Major amputation: amputation of the lower limb at the ankle level or above Minor amputation: amputation of forefoot or toes

    Measured: 1 Year

  8. Amputation of Index Limb

    Major amputation: amputation of the lower limb at the ankle level or above Minor amputation: amputation of forefoot or toes

    Measured: 2 Years

  9. Amputation of Index Limb

    Major amputation: amputation of the lower limb at the ankle level or above Minor amputation: amputation of forefoot or toes

    Measured: 3 Years

  10. Target Vessel Revascularization (TVR)

    Target vessel revascularization (TVR) is defined as any surgical or percutaneous intervention to the target vessel(s) after the index procedure. A TVR is considered ischemia-driven if the culprit lesion stenosis is ≥50% by quantitative angiography and the subject has ischemic symptoms.

    A TVR is considered ischemia-driven if the culprit lesion diameter stenosis is ≥70% even in the absence of clinical or functional ischemia.

    Measured: 30 Days

  11. Target Vessel Revascularization (TVR)

    Target vessel revascularization (TVR) is defined as any surgical or percutaneous intervention to the target vessel(s) after the index procedure. A TVR is considered ischemia-driven if the culprit lesion stenosis is ≥50% by quantitative angiography and the subject has ischemic symptoms.

    A TVR is considered ischemia-driven if the culprit lesion diameter stenosis is ≥70% even in the absence of clinical or functional ischemia.

    Measured: 9 Months

  12. Target Vessel Revascularization (TVR)

    Target vessel revascularization (TVR) is defined as any surgical or percutaneous intervention to the target vessel(s) after the index procedure. A TVR is considered ischemia-driven if the culprit lesion stenosis is ≥50% by quantitative angiography and the subject has ischemic symptoms.

    A TVR is considered ischemia-driven if the culprit lesion diameter stenosis is ≥70% even in the absence of clinical or functional ischemia.

    Measured: 1 Year

  13. Target Vessel Revascularization (TVR)

    Target vessel revascularization (TVR) is defined as any surgical or percutaneous intervention to the target vessel(s) after the index procedure. A TVR is considered ischemia-driven if the culprit lesion stenosis is ≥50% by quantitative angiography and the subject has ischemic symptoms.

    A TVR is considered ischemia-driven if the culprit lesion diameter stenosis is ≥70% even in the absence of clinical or functional ischemia.

    Measured: 2 Years

  14. Target Vessel Revascularization (TVR)

    Target vessel revascularization (TVR) is defined as any surgical or percutaneous intervention to the target vessel(s) after the index procedure. A TVR is considered ischemia-driven if the culprit lesion stenosis is ≥50% by quantitative angiography and the subject has ischemic symptoms.

    A TVR is considered ischemia-driven if the culprit lesion diameter stenosis is ≥70% even in the absence of clinical or functional ischemia.

    Measured: 3 Years

  15. Myocardial Infarction (MI)

    Definition of myocardial infarction: New Q-waves in ≥2 leads lasting ≥0.04 sec with creatine kinase- myoglobin band (CK-MB)/troponin above upper limit of normal (ULN); if no new Q-waves elevation of post-procedure CK levels >2.0× ULN with positive CK-MB, or, if the assay for CK-MB was not performed, elevation of CK levels >2.0× ULN with positive troponin. Drawing a CK-MB or troponin is mandated if CK is greater than 2× ULN. If no CK-MB or troponin was drawn, CK >2× ULN will be considered an MI. ULN is determined per local laboratory specifications.

    Measured: Index hospitalization

  16. Technical Success

    Residual lesion stenosis <=30% based on visual assessment immediately postprocedure

    Measured: Index procedure

  17. Procedure Success

    Technical success (residual lesion stenosis <=30% based on visual assessment immediately postprocedure) and no in-hospital major adverse events (device- or index procedure-related death, myocardial infarction, target vessel revascularization or amputation of the index limb).

    Measured: In hospital (1-2 days post procedure)

  18. Early Clinical Success

    Improvement in Rutherford classification by 1 class as compared to baseline. Rutherford Classification is used to assess lower extremity ischemia as shown below:

    Class 0 = Asymptomatic Class 1 = Mild claudication Class 2 = Moderate claudication Class 3 = Severe claudication Class 4 = Ischemic rest pain Class 5 = Minor tissue loss - non-healing ulcer, focal gangrene with diffuse pedal edema

    Measured: Hospital Discharge

  19. Early Clinical Success

    Improvement in Rutherford classification by 1 class as compared to baseline. Rutherford Classification is used to assess lower extremity ischemia as shown below:

    Class 0 = Asymptomatic Class 1 = Mild claudication Class 2 = Moderate claudication Class 3 = Severe claudication Class 4 = Ischemic rest pain Class 5 = Minor tissue loss - non-healing ulcer, focal gangrene with diffuse pedal edema

    Measured: 30 Days

  20. Late Clinical Success

    Improvement in Rutherford classification by 1 class as compared to baseline. Rutherford Classification is used to assess lower extremity ischemia as shown below:

    Class 0 = Asymptomatic Class 1 = Mild claudication Class 2 = Moderate claudication Class 3 = Severe claudication Class 4 = Ischemic rest pain Class 5 = Minor tissue loss - non-healing ulcer, focal gangrene with diffuse pedal edema

    Measured: 9 Months

  21. Late Clinical Success

    Improvement in Rutherford classification by 1 class as compared to baseline. Rutherford Classification is used to assess lower extremity ischemia as shown below:

    Class 0 = Asymptomatic Class 1 = Mild claudication Class 2 = Moderate claudication Class 3 = Severe claudication Class 4 = Ischemic rest pain Class 5 = Minor tissue loss - non-healing ulcer, focal gangrene with diffuse pedal edema

    Measured: 1 Year

  22. Early Hemodynamic Success

    Improvement in ankle-brachial index (ABI) by ≥0.1 from the pre-procedure value and not deteriorated by >0.15 from the maximum post-procedure value. Reported per limb.

    Measured: Hospital Discharge

  23. Early Hemodynamic Success

    Improvement in ankle-brachial index (ABI) by ≥0.1 from the pre-procedure value and not deteriorated by >0.15 from the maximum post-procedure value. Reported per limb.

    Measured: 30 Days

  24. Late Hemodynamic Success

    Improvement in ankle-brachial index (ABI) by ≥0.1 from the pre-procedure value and not deteriorated by >0.15 from the maximum post-procedure value. Reported per limb.

    Measured: 9 Months

  25. Late Hemodynamic Success

    Improvement in ankle-brachial index (ABI) by ≥0.1 from the pre-procedure value and not deteriorated by >0.15 from the maximum post-procedure value. Reported per limb.

    Measured: 1 Year

  26. Rutherford Classification Distribution

    Rutherford Classification is used to assess lower extremity ischemia as shown below:

    0 = Asymptomatic

    1. = Mild claudication
    2. = Moderate claudication
    3. = Severe claudication
    4. = Ischemic rest pain
    5. = Minor tissue loss - non-healing ulcer, focal gangrene with diffuse pedal edema

    Measured: Pre-procedure/baseline

  27. Rutherford Classification Distribution

    Rutherford Classification is used to assess lower extremity ischemia as shown below:

    0 = Asymptomatic

    1. = Mild claudication
    2. = Moderate claudication
    3. = Severe claudication
    4. = Ischemic rest pain
    5. = Minor tissue loss - non-healing ulcer, focal gangrene with diffuse pedal edema

    Measured: Post-procedure

  28. Rutherford Classification Distribution

    Rutherford Classification is used to assess lower extremity ischemia as shown below:

    0 = Asymptomatic

    1. = Mild claudication
    2. = Moderate claudication
    3. = Severe claudication
    4. = Ischemic rest pain
    5. = Minor tissue loss - non-healing ulcer, focal gangrene with diffuse pedal edema

    Measured: 30 Days

  29. Rutherford Classification Distribution

    Rutherford Classification is used to assess lower extremity ischemia as shown below:

    Class 0 = Asymptomatic Class 1 = Mild claudication Class 2 = Moderate claudication Class 3 = Severe claudication Class 4 = Ischemic rest pain Class 5 = Minor tissue loss - non-healing ulcer, focal gangrene with diffuse pedal edema Class 6 = Major tissue loss

    Measured: 9 Months

  30. Rutherford Classification Distribution

    Rutherford Classification is used to assess lower extremity ischemia as shown below:

    Class 0 = Asymptomatic Class 1 = Mild claudication Class 2 = Moderate claudication Class 3 = Severe claudication Class 4 = Ischemic rest pain Class 5 = Minor tissue loss - non-healing ulcer, focal gangrene with diffuse pedal edema Class 6 = Major tissue loss

    Measured: 1 Year

  31. Acute Stent Thrombosis

    Angiographic documentation of an acute, complete occlusion of a previously successfully treated lesion and/or Angiographic documentation of a flow-limiting thrombus within, or adjacent to, a previously successfully treated lesion

    Acute stent thrombosis is defined as occurring <=24 hours following the trial procedure. Subacute stent thrombosis is defined as occurring >24 hours to <=30 days following the trial procedure.

    Measured: 24 Hours

  32. Sub-acute Stent Thrombosis

    Angiographic documentation of an acute, complete occlusion of a previously successfully treated lesion and/or Angiographic documentation of a flow-limiting thrombus within, or adjacent to, a previously successfully treated lesion

    Acute stent thrombosis is defined as occurring less than or equal to 24 hours following the trial procedure. Subacute stent thrombosis is defined as occurring >24 hours to less than or equal to 30 days following the trial procedure.

    Measured: >24 Hours to <=30 Days Post-index procedure

  33. Stent Thrombosis

    Angiographic documentation of an acute, complete occlusion of a previously successfully treated lesion and/or Angiographic documentation of a flow-limiting thrombus within, or adjacent to, a previously successfully treated lesion

    Late stent thrombosis is defined as >30 days to 365 days following the trial procedure.

    Measured: 9 Months

  34. Stent Thrombosis

    Angiographic documentation of an acute, complete occlusion of a previously successfully treated lesion and/or Angiographic documentation of a flow-limiting thrombus within, or adjacent to, a previously successfully treated lesion

    Late stent thrombosis is defined as >30 days to 365 days following the trial procedure.

    Measured: 1 Year

  35. Stent Thrombosis

    Angiographic documentation of an acute, complete occlusion of a previously successfully treated lesion and/or Angiographic documentation of a flow-limiting thrombus within, or adjacent to, a previously successfully treated lesion

    Very late stent thrombosis is defined as >365 days following the trial procedure.

    Measured: 2 Years

  36. Stent Thrombosis

    Angiographic documentation of an acute, complete occlusion of a previously successfully treated lesion and/or Angiographic documentation of a flow-limiting thrombus within, or adjacent to, a previously successfully treated lesion

    Very late stent thrombosis is defined as >365 days following the trial procedure.

    Measured: 3 Years

  37. Target Lesion Revascularization (TLR)

    Target lesion revascularization (TLR) is any surgical or percutaneous intervention to the target lesion(s) after the index procedure. A TLR will be considered ischemia-driven if the target lesion diameter stenosis is ≥50% by quantitative angiography and the subject has ischemic symptoms. A TLR will be considered ischemia-driven if the lesion diameter stenosis is ≥70% even in the absence of clinical or functional ischemia.

    Measured: 30 Days

  38. Target Lesion Revascularization (TLR)

    Target lesion revascularization (TLR) is any surgical or percutaneous intervention to the target lesion(s) after the index procedure. A TLR will be considered ischemia-driven if the target lesion diameter stenosis is ≥50% by quantitative angiography and the subject has ischemic symptoms. A TLR will be considered ischemia-driven if the lesion diameter stenosis is ≥70% even in the absence of clinical or functional ischemia.

    Measured: 9 Months

  39. Target Lesion Revascularization (TLR)

    Target lesion revascularization (TLR) is any surgical or percutaneous intervention to the target lesion(s) after the index procedure. A TLR will be considered ischemia-driven if the target lesion diameter stenosis is ≥50% by quantitative angiography and the subject has ischemic symptoms. A TLR will be considered ischemia-driven if the lesion diameter stenosis is ≥70% even in the absence of clinical or functional ischemia.

    Measured: 1 Year

  40. Target Lesion Revascularization (TLR)

    Target lesion revascularization (TLR) is any surgical or percutaneous intervention to the target lesion(s) after the index procedure. A TLR will be considered ischemia-driven if the target lesion diameter stenosis is ≥50% by quantitative angiography and the subject has ischemic symptoms. A TLR will be considered ischemia-driven if the lesion diameter stenosis is ≥70% even in the absence of clinical or functional ischemia.

    Measured: 2 Years

  41. Target Lesion Revascularization (TLR)

    Target lesion revascularization (TLR) is any surgical or percutaneous intervention to the target lesion(s) after the index procedure. A TLR will be considered ischemia-driven if the target lesion diameter stenosis is ≥50% by quantitative angiography and the subject has ischemic symptoms. A TLR will be considered ischemia-driven if the lesion diameter stenosis is ≥70% even in the absence of clinical or functional ischemia.

    Measured: 3 Years

  42. Ankle-Brachial Index (ABI)

    Ratio between the systolic pressure measured at the ankle and the systolic pressure measured in the arm as follows:

    Ankle: The systolic pressure will be measured in the index limb at the arteria dorsalis pedis and/or the arteria tibialis posterior. If both pressures are measured, the highest pressures will be used for the ABI calculation.

    Brachial: The systolic pressure will be measured in both arms, and the highest of both pressures will be used for the ABI calculation.

    Measured: Pre-procedure/baseline

  43. Ankle-Brachial Index

    Ratio between the systolic pressure measured at the ankle and the systolic pressure measured in the arm as follows:

    Ankle: The systolic pressure will be measured in the index limb at the arteria dorsalis pedis and/or the arteria tibialis posterior. If both pressures are measured, the highest pressures will be used for the ABI calculation.

    Brachial: The systolic pressure will be measured in both arms, and the highest of both pressures will be used for the ABI calculation.

    Measured: Hospital Discharge (1-2 days post-procedure)

  44. Ankle-Brachial Index (ABI)

    Ratio between the systolic pressure measured at the ankle and the systolic pressure measured in the arm as follows:

    Ankle: The systolic pressure will be measured in the index limb at the arteria dorsalis pedis and/or the arteria tibialis posterior. If both pressures are measured, the highest pressures will be used for the ABI calculation.

    Brachial: The systolic pressure will be measured in both arms, and the highest of both pressures will be used for the ABI calculation.

    Measured: 30 Days

  45. Ankle-Brachial Index (ABI)

    Ratio between the systolic pressure measured at the ankle and the systolic pressure measured in the arm as follows:

    Ankle: The systolic pressure will be measured in the index limb at the arteria dorsalis pedis and/or the arteria tibialis posterior. If both pressures are measured, the highest pressures will be used for the ABI calculation.

    Brachial: The systolic pressure will be measured in both arms, and the highest of both pressures will be used for the ABI calculation.

    Measured: 9 Months

  46. Ankle-Brachial Index (ABI)

    Ratio between the systolic pressure measured at the ankle and the systolic pressure measured in the arm as follows:

    Ankle: The systolic pressure will be measured in the index limb at the arteria dorsalis pedis and/or the arteria tibialis posterior. If both pressures are measured, the highest pressures will be used for the ABI calculation.

    Brachial: The systolic pressure will be measured in both arms, and the highest of both pressures will be used for the ABI calculation.

    Measured: 1 Year

  47. Primary Patency

    Systolic velocity ratio (SVR) is the ratio of the measurement of systolic velocity in 2 arterial regions as determined by duplex ultrasound (DUS). Primary patency (defined per lesion) is defined as DUS SVR ≤2.5 with no target lesion revascularization, bypass of the target lesion, or amputation.

    Measured: 9 Months

  48. Primary Patency

    Systolic velocity ratio (SVR) is the ratio of the measurement of systolic velocity in 2 arterial regions as determined by duplex ultrasound (DUS). Primary patency (defined per lesion) is defined as DUS SVR ≤2.5 with no target lesion revascularization, bypass of the target lesion, or amputation.

    Measured: 1 Year

  49. Primary-assisted Patency (PAP)

    Systolic velocity ratio (SVR) is the ratio of the measurement of systolic velocity in 2 arterial regions as determined by duplex ultrasound (DUS). Primary-assisted patency (defined per lesion) is defined as DUS SVR ≤2.5 with no target lesion revascularization for total occlusion, bypass of the target lesion, or amputation. In 1 subject, SVR was invalid and DUS proximal peak systolic velocity was analyzed to assess restenosis.

    Measured: 9 Months

  50. Primary-assisted Patency (PAP)

    Systolic velocity ratio (SVR) is the ratio of the measurement of systolic velocity in 2 arterial regions as determined by duplex ultrasound (DUS). Primary-assisted patency (defined per lesion) is defined as DUS SVR ≤2.5 with no target lesion revascularization for total occlusion, bypass of the target lesion, or amputation. In 1 subject, SVR was invalid and DUS proximal peak systolic velocity was analyzed to assess restenosis.

    Measured: 1 Year

  51. Secondary Patency

    Systolic velocity ratio (SVR) is the ratio of the measurement of systolic velocity in 2 arterial regions as determined by duplex ultrasound (DUS). Secondary patency (defined per lesion) is defined as having DUS SVR ≤2.5 in the absence of bypass of the target lesion or amputation. In 1 subject, SVR was invalid and proximal peak systolic velocity was analyzed to assess restenosis.

    Measured: 9 Months

  52. Secondary Patency

    Systolic velocity ratio (SVR) is the ratio of the measurement of systolic velocity in 2 arterial regions as determined by duplex ultrasound (DUS). Secondary patency (defined per lesion) is defined as having DUS SVR ≤2.5 in the absence of bypass of the target lesion or amputation. In 1 subject, SVR was invalid and proximal peak systolic velocity was analyzed to assess restenosis.

    Measured: 1 Year

  53. Restenosis Assessed by Duplex Ultrasound

    Systolic velocity ratio (SVR) is the ratio of the measurement of systolic velocity in 2 arterial regions as determined by duplex ultrasound (DUS). Restenosis (defined per lesion)is defined as DUS SVR >2.5 or the presence of a target lesion revascularization prior to the DUS examination, regardless of the SVR value. In 1 subject, SVR was invalid and proximal peak systolic velocity by DUS was analyzed to assess restenosis.

    Measured: 9 Months

  54. Restenosis Assessed by Duplex Ultrasound

    Systolic velocity ratio (SVR) is the ratio of the measurement of systolic velocity in 2 arterial regions as determined by duplex ultrasound (DUS). Restenosis (defined per lesion)is defined as DUS SVR >2.5 or the presence of a target lesion revascularization prior to the DUS examination, regardless of the SVR value. In 1 subject, SVR was invalid and proximal peak systolic velocity by DUS was analyzed to assess restenosis.

    Measured: 1 Year

  55. Walking Impairment Questionnaire Score - Distance

    The Walking Impairment Questionnaire is a functional-assessment questionnaire that evaluates walking ability with regard to speed, distance and stair climbing ability as well as the reasons that walking ability might be limited. Range of scores is between 0% and 100% with 100% being the best and 0% being the worst score.

    Measured: Pre-procedure/baseline

  56. Walking Impairment Questionnaire Score - Distance

    The Walking Impairment Questionnaire is a functional-assessment questionnaire that evaluates walking ability with regard to speed, distance and stair climbing ability as well as the reasons that walking ability might be limited. Range of scores is between 0% and 100% with 100% being the best and 0% being the worst score.

    Measured: 9 Months

  57. Walking Impairment Questionnaire Score - Distance

    The Walking Impairment Questionnaire is a functional-assessment questionnaire that evaluates walking ability with regard to speed, distance and stair climbing ability as well as the reasons that walking ability might be limited. Range of scores is between 0% and 100% with 100% being the best and 0% being the worst score.

    Measured: 1 Year

  58. Walking Impairment Questionnaire Score - Speed

    The Walking Impairment Questionnaire is a functional-assessment questionnaire that evaluates walking ability with regard to speed, distance and stair climbing ability as well as the reasons that walking ability might be limited. Range of scores is between 0% and 100% with 100% being the best and 0% being the worst score.

    Measured: Pre-procedure/baseline

  59. Walking Impairment Questionnaire Score - Speed

    The Walking Impairment Questionnaire is a functional-assessment questionnaire that evaluates walking ability with regard to speed, distance and stair climbing ability as well as the reasons that walking ability might be limited. Range of scores is between 0% and 100% with 100% being the best and 0% being the worst score.

    Measured: 9 Months

  60. Walking Impairment Questionnaire Score - Speed

    The Walking Impairment Questionnaire is a functional-assessment questionnaire that evaluates walking ability with regard to speed, distance and stair climbing ability as well as the reasons that walking ability might be limited. Range of scores is between 0% and 100% with 100% being the best and 0% being the worst score.

    Measured: 1 Year

  61. Walking Impairment Questionnaire Score-Stair Climbing

    The Walking Impairment Questionnaire is a functional-assessment questionnaire that evaluates walking ability with regard to speed, distance and stair climbing ability as well as the reasons that walking ability might be limited. Range of scores is between 0% and 100% with 100% being the best and 0% being the worst score.

    Measured: Pre-procedure/baseline

  62. Walking Impairment Questionnaire Score - Stair Climbing

    The Walking Impairment Questionnaire is a functional-assessment questionnaire that evaluates walking ability with regard to speed, distance and stair climbing ability as well as the reasons that walking ability might be limited. Range of scores is between 0% and 100% with 100% being the best and 0% being the worst score.

    Measured: 9 Months

  63. Walking Impairment Questionnaire Score - Stair Climbing

    The Walking Impairment Questionnaire is a functional-assessment questionnaire that evaluates walking ability with regard to speed, distance and stair climbing ability as well as the reasons that walking ability might be limited. Range of scores is between 0% and 100% with 100% being the best and 0% being the worst score.

    Measured: 1 Year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 May 2009 (estimated)
  2. Study startMay 2009
  3. Primary completionSep 2011
  4. Study completionDec 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
125 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00896337
Sponsor's protocol ID
S2020
Acronym
ORION
Status last verified
Apr 2015
First submitted
8 May 2009
Last updated
7 May 2015
Data monitoring committee
Yes

Publications

  • Clair DG, Adams J, Reen B, Feldman R, Starr J, Diaz-Cartelle J, Dawkins KD. The EPIC nitinol stent system in the treatment of iliac artery lesions: one-year results from the ORION clinical trial. J Endovasc Ther. 2014 Apr;21(2):213-22. doi: 10.1583/13-4560.1.

    PubMed 24754280

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Epic™ Nitinol Stent System, Anti-platelet therapy and Anti-coagulation therapy in people with Iliac Artery Stenosis, run by Boston Scientific Corporation at 28 sites 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 10 inclusion and 21 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 May 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 28 sites 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.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 3 Jul 2012). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Device- and/or Procedure-related Major Adverse Events (MAE) (time frame: 9 Months). 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 NCT00896337, 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 May 2015.

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