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Coronary Artery DiseaseNCT03429894

Evaluation of a Thin Strut Metallic Stent: the Elixir DynamX Clinical Study

A study testing Percutaneous Coronary Intervention in people with Coronary Artery Disease, run by Elixir Medical Corporation at 2 sites in 2 countries.

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 DynamX (Bioadaptor) study is a prospective, consecutive enrollment study designed to enroll up to 50 patients requiring treatment of a single, de novo lesion ≤ 24 mm in length located in a vessel ≥ 2.5 mm and ≤ 3.5 mm in diameter. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Coronary Artery Disease
What is being tested?
Percutaneous Coronary Intervention
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
50 participants
Where
2 sitesin 2 countries
Study dates
16 Nov 2017to 31 Dec 2021
Phase
Interventional
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

General Inclusion Criteria:

  1. Patient must be at least 18 years of age.
  2. Patient is able to verbally confirm understanding of risks, benefits and treatment alternatives of receiving the DynamX Novolimus Eluting Coronary Stent System (CSS) and he/she provides written informed consent, as approved by the appropriate Ethics Committee of the respective clinical site, prior to any clinical study related procedure.
  3. Patient must have evidence of myocardial ischemia (e.g., stable or unstable angina, silent ischemia, positive functional study or electrocardiogram (ECG) changes consistent with ischemia)
  4. Patient must be an acceptable candidate for coronary artery bypass graft (CABG) surgery
  5. Patient must agree to undergo all clinical study required follow-up visits, angiograms, and IVUS testing
  6. Patient must agree not to participate in any other clinical study for a period of one year following the index procedure.

Angiographic Inclusion Criteria - Target Lesion/Vessel

  1. Target lesion must be located in a native coronary artery with a nominal vessel diameter of ≥ 2.5 and ≤3.5 mm assessed visually or by online QCA
  2. Target lesion must measure ≤ 24 mm in length
  3. Target lesion must be in a major artery or branch with a visually estimated stenosis of ≥ 50% and < 90% with a TIMI flow of ≥ 2
  4. The lesion must be successfully pre-dilated (less than 35% DS) prior to enrollment

Angiographic Inclusion Criteria - non-Target Lesion/Vessel Treatment

  1. Treatment of a single, non-target lesion located in a separate major epicardial vessel (defined as LAD with septal and diagonal branches, LCX with obtuse marginal and/or ramus intermedius branches and RCA and any of its branches) attempted during the index procedure must be completed first using an approved 'olimus drug eluting stent. The segment must be located such that any injury that might occur during intervention can be clearly attributable to the treated non-target vessel. If the procedure is deemed uncomplicated and optimal, treatment of the target lesion with the DynamX stent can be considered.

Optimal lesion/vessel treatment defined as:

  • < 10% but no more than 15% residual diameter stenosis by visual assessment
  • no evidence of dissection
  • no evidence of thrombus in the treated lesion or vessel
  • TIMI 3 flow
  • Stent completely covers lesion and extends to healthy vessel on both sides (healthy to healthy)

General Exclusion Criteria

  1. Patient has a known diagnosis of acute myocardial infarction (AMI) within 72 hours preceding the index procedure and CK and CK-MB have not returned within normal limits at the time of procedure
  2. Patient is currently experiencing clinical symptoms consistent with AMI
  3. Patient requires the use of any rotablator intervention during the index procedure
  4. Patient has current unstable arrhythmias
  5. Patient presenting with heart failure, chronic arrhythmia, COPD or lung function impairment
  6. Patient has a known left ventricular ejection fraction (LVEF) < 30%
  7. Patient has received a heart transplant or any other organ transplant or is on a waiting list for any organ transplant
  8. Patient is receiving or scheduled to receive chemotherapy for malignancy within 30 days prior to or after the procedure
  9. Patient is receiving immunosuppression therapy and has known immunosuppressive or autoimmune disease (e.g. human immunodeficiency virus, systemic lupus erythematosus etc.)
  10. Patient is receiving chronic anticoagulation therapy (e.g., heparin, coumadin) that cannot be stopped and restarted according to local hospital standard procedures.
  11. Patient has a known hypersensitivity or contraindication to aspirin, both heparin and bivalirudin, clopidogrel, prasugrel or ticagrelor, Novolimus, CoCr alloys, PLLA polymers or contrast sensitivity that cannot be adequately pre-medicated
  12. Elective surgery is planned within the first 6 months after the procedure that will require discontinuing either aspirin or clopidogrel or other P2Y12 inhibitors.
  13. Patient has a platelet count < 100,000 cells/mm3 or > 700,000 cells/mm3, a WBC of < 3,000 cells/mm3, or documented or suspected liver disease.
  14. Patient has known renal insufficiency (e.g., serum creatinine level of more than 2.5 mg/dL, or patient on dialysis)
  15. Patient has a history of bleeding diathesis or coagulopathy or will refuse blood transfusions
  16. Patient has had a cerebrovascular accident (CVA) or transient ischemic neurological attack (TIA) within the past six months
  17. Patient has had a significant GI or urinary bleed within the past six months
  18. Patient has extensive peripheral vascular disease that precludes safe 6 French sheath insertion
  19. Patient has other medical illness (e.g., cancer or congestive heart failure) or known history of substance abuse (alcohol, cocaine, heroin etc.) that may cause non-compliance with the clinical study plan, confound the data interpretation or is associated with a limited life expectancy (i.e., less than one year)
  20. Patient is already participating in another clinical study which has not reached the primary endpoint (long-term follow-up is not an exclusion)
  21. Women of childbearing potential who have not undergone surgical sterilization or are not post-menopausal (defined as amenorrheic for at least one year) as well as women who are pregnant or nursing
  22. Patient is unable to give their consent, is legally incompetent, or is institutionalized by virtue of an order issued by the courts or other authority

Angiographic Exclusion Criteria

  1. Target lesion(s) meets any of the following criteria:
  2. Aorto-ostial location
  3. Left main location
  4. Tapering within target segment of 0.5mm or greater
  5. Located within 10 mm of the origin of the LAD or LCX
  6. Located within an arterial or saphenous vein graft or distal to a diseased arterial or saphenous vein graft
  7. Lesion involving a side branch >2mm in diameter or bifurcation
  8. Previous placement of a stent proximal to or within 10 mm of the target lesion
  9. Total or sub-total occlusion (TIMI flow ≤ 1)
  10. Excessive tortuosity or angulation (≥ 45o) proximal to or within the lesion
  11. The proximal target vessel or target lesion is moderately or severely calcified by visual assessment, or lesion prevents full pre-dilatation balloon expansion
  12. Previous intervention restenosis
  13. The target vessel contains visible thrombus
  14. Another clinically significant lesion (>40%) is located in the same major epicardial vessel as the target lesion (including side branches)
  15. Patient has a high probability that a procedure other than pre-dilatation and stenting and (if necessary) post-dilatation will be required at the time of index procedure for treatment of the target vessel (e.g. atherectomy, cutting balloon)
  16. Target vessel was previously treated with any type of PCI < 6 months prior to index procedure
  17. Non-Target vessel was previously treated with any type of PCI < 30 days prior to the index procedure

Trial locations and contacts

2 sites in 2 countries.

2 sites in 2 countries

Belgium1 site
  • AZ Middelheim Hospital

    Antwerp, 2020

Other trials in Belgium

Italy1 site
  • Ospendale San Raffaele

    Milan, 20132

Other trials in Italy

About this study

Official title: Evaluation of a Thin Strut Metallic Stent: the Elixir DynamXTM Novolimus Eluting Coronary Bioadaptor System

The DynamX (Bioadaptor) study is a prospective, consecutive enrollment study designed to enroll up to 50 patients requiring treatment of a single, de novo lesion ≤ 24 mm in length located in a vessel ≥ 2.5 mm and ≤ 3.5 mm in diameter. All patients be followed clinically at 30 days, 6 and 9 months, and 1, 2 and 3 years.

All patients will undergo imaging (angiography and IVUS) follow-up with approximately one-half of the patients returning for follow up at 9 months and approximately one-half returning for follow up at 12 months.

Read the detailed description

The DynamX (Bioadaptor) study is a prospective, consecutive enrollment study designed to enroll up to 50 patients requiring treatment of a single, de novo lesion ≤ 24 mm in length located in a vessel ≥ 2.5 mm and ≤ 3.5 mm in diameter. All patients be followed clinically at 30 days, 6 and 9 months, and 1, 2 and 3 years.

All patients will undergo imaging (angiography and IVUS) follow-up with approximately one-half of the patients returning for follow up at 9 months and approximately one-half returning for follow up at 12 months.

At select centers, a subset of approximately 20 patients will undergo FFR pressure wire measurement at baseline and at follow-up (or at a minimum follow-up) in conjunction with the IVUS imaging, and will also undergo OCT imaging at 9 or 12 months.

The primary safety endpoint is Target Lesion Failure at 6 months. TLF is a composite endpoint defined as cardiac death, target vessel MI, and clinically-indicated target lesion revascularization.

The primary imaging/efficacy endpoints for those patients undergoing imaging follow-up is the change in mean in-device area and mean lumen area at 9 or 12 months compared to post-procedure as measured by IVUS.

Co-primary imaging/efficacy endpoints for those patients undergoing imaging follow-up is late lumen loss as measured by QCA and IVUS at 9 or 12 months.

Being tested
Percutaneous Coronary Intervention
Medical subject headings
Coronary Artery Disease

What participants receive

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

  • Percutaneous Coronary InterventionDevice

    Drug eluting stent implant

Study groups in NCT03429894
Study groupRoleWhat they receive
TreatmentExperimentalAll patients will undergo imaging (angiography and IVUS) follow-up with approximately one-half of the patients returning for follow up at 9 months and approximately one-half returning for follow up at 12 months.
Receives: Device: Percutaneous Coronary Intervention

What is being measured

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

  1. Target Lesion Failure (TLF)

    Target Lesion Failure (composite of cardiac death, target vessel MI, and clinically-indicated target lesion revascularization)

    Measured: 6 months

  2. Change in Mean In-Device Area compared to post-procedure as measured by IVUS

    Measured: 9 or 12 months

  3. Change in Mean Lumen Area compared to post-procedure as measured by IVUS

    Measured: 9 or 12 months

  4. Late Lumen Loss (LLL) as measured by QCA

    Measured: 9 or 12 months

  5. Late Lumen Loss (LLL) as measured by IVUS

    Measured: 9 or 12 months

Secondary outcomes (15)
  1. Device Success

    Successful delivery of the device and a final residual stenosis < 30% by QCA

    Measured: During Procedure

  2. Procedure Success

    Successful delivery of the device and a final residual stenosis < 30% by QCA without TLF through hospital discharge

    Measured: In Hospital through Discharge

  3. Target Lesion Failure (TLF)

    Target Lesion Failure (composite of cardiac death, target vessel MI, and clinically-indicated target lesion revascularization)

    Measured: 30 days, 1, 2 and 3 years

  4. Cardiac Death

    Cardiac Death

    Measured: 30 days, 180 days, 1, 2 and 3 years

  5. Non-Cardiac Death

    Non-Cardiac death

    Measured: 30 days, 180 days, 1, 2 and 3 years

  6. Q-wave Myocardial Infarction (Q-MI)

    Q-MI

    Measured: 30 days, 180 days, 1, 2 and 3 years

  7. Non-Q-wave Myocardial Infarction (NQ-MI)

    NQ-MI

    Measured: 30 days, 180 days, 1, 2 and 3 years

  8. Target Vessel Myocardial Infarction (TV-MI)

    Target Vessel MI

    Measured: 30 days, 180 days, 1, 2 and 3 years

  9. Non-Target Vessel Myocardial Infarction (NTV-MI)

    Non-Target Vessel MI

    Measured: 30 days, 180 days, 1, 2 and 3 years

  10. Clinically-Indicated Target Lesion Revascularization (CI-TLR)

    CI-TLR

    Measured: 30 days, 180 days, 1, 2 and 3 years

  11. Non-Clinically Indicated Target Lesion Revascularization (Non-CI-TLR)

    Non-CI-TLR

    Measured: 30 days, 180 days, 1, 2 and 3 years

  12. Clinically Indicated Target Vessel Revascularization (CI-TVR)

    CI-TVR

    Measured: 30 days, 180 days, 1, 2 and 3 years

  13. Non-Clinically Indicated Target Vessel Revascularization

    Non-CI-TVR

    Measured: 30 days, 180 days, 1, 2 and 3 years

  14. Target Vessel Failure (TVF)

    Composite of cardiac death, target vessel MI, clinically indicated target vessel revascularization

    Measured: 30 days, 180 days, 1, 2 and 3 years

  15. Stent Thrombosis

    Definite \& Probable Stent Thrombosis (per ARC)

    Measured: 30 days, 180 days, 1, 2 and 3 years

Timeline

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

  1. First posted12 Feb 2018
  2. Study start16 Nov 2017
  3. Primary completion17 Sep 2019
  4. Study completion31 Dec 2021

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 N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Model description
All patients will undergo imaging (angiography and IVUS) follow-up with approximately one-half of the patients returning for follow up at 9 months and approximately one-half returning for follow up at 12 months.
Masking
None (open label)
Enrolment
50 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03429894
Sponsor's protocol ID
ELX-CL-1704
Status last verified
Jul 2022
First submitted
17 Jan 2018
Last updated
20 Jul 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Verheye S, Vrolix M, Montorfano M, Giannini F, Bedogni F, Dubois C, De Bruyne B, Costa RA, Chamie D, Costa JR Jr, Abizaid A, Colombo A. Final 36-Month Outcomes from the Multicenter DynamX Study Evaluating a Novel Thin-Strut Novolimus-Eluting Coronary Bioadaptor System and Supporting Preclinical Data. Rev Cardiovasc Med. 2023 Aug 1;24(8):221. doi: 10.31083/j.rcm2408221. eCollection 2023 Aug.

    PubMed 39076703

Questions about this trial

What is this clinical trial studying?

A study testing Percutaneous Coronary Intervention in people with Coronary Artery Disease, run by Elixir Medical Corporation at 2 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

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 20 Jul 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Belgium, Italy. 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?

Target Lesion Failure (TLF) (time frame: 6 months). The study lists 5 primary outcomes in all. 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 NCT03429894, 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 20 Jul 2022.

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