ClinicalTrials.gg
CompletedNCT03373695Updated Feb 20, 2025

A Safety and Efficacy Study of Dissolve™ in Treatment of Coronary In-stent Restenosis

An interventional study of Dissolve™ and SeQuent®Please in Coronary In-stent Restenosis, sponsored by DK Medical Technology (Suzhou) Co., Ltd.. Completed at 15 sites in China. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-02-20.

Sponsored by DK Medical Technology (Suzhou) Co., Ltd. · Not applicable, Interventional, and Treatment

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Phase
Not applicable
Study type
Interventional
Enrollment
260
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study is to evaluate the efficacy and safety of treatment of coronary in-stent restenosis by Paclitaxel-eluting balloon catheter Dissolve™ versus SeQuent®Please, and the reference diameter of coronary artery stenosis is 2.5mm-4.0mm and the length ≤ 26mm.

02

Conditions studied

  • Coronary In-stent Restenosis
03

In context

Lead sponsor

DK Medical Technology (Suzhou) Co., Ltd. is the lead sponsor of 8 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 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

Related to the patients:

  1. Age ≥18 years old
  2. Patients who agree to accept the angiography follow-up visit at 9-month and follow up visits at 1-month, 6-month, 9-month, 1-year, 2-year, 3-year, 4-year and 5-year
  3. Patients with stable angina, unstable angina, old myocardial infarction or proven asymptomatic ischemia
  4. Patients who can receive any kind of coronary revascularization (including balloon angioplasty, stent implantation or coronary artery bypass grafting)

    Related to lesion:

  5. Restenosis after the first stent implant (including bare metal stents, stents with inert coating, and stents with active coating): Type Mehran I, Type II and Type III; the reference blood vessel diameter is 2.5 mm-4.0 mm, length ≤ 26mm
  6. Before surgery, stenosis diameter must be ≥ 70% or ≥ 50% and accompanied by ischemia
  7. The distance between other lesion requires interventional therapy and the target lesion must be > 10mm
  8. One subject is allowed to have 2 target lesions at most, and 1 paclitaxel drug balloon for each lesion for dilation
  9. Residual stenosis must be ≤ 30% after pre-dilatation, and dissection must be ≤ NHLBI type B

Exclusion criteria

Exclusion Criteria:

Related to patients

  1. Pregnant or lactating women, or women who plan to get pregnant within 12 months or refuse to take effective
  2. Patients with cardiogenic shock
  3. The patients had cerebral stroke within 6 months before being included, or have a history of peptic ulcer or gastrointestinal bleeding, or the patients have a bleeding tendency according to the investigator. Patients who are forbidden to use anticoagulation agents or anti- drugs, and unable to tolerate aspirin or clopidogrel. Patients who are not able to tolerate and comply with dual antiplatelet therapy for at least 3 months after operation
  4. Patients who have Myocardial Infarction with thrombus or coronary slow flow symptoms and require immediate intervention
  5. Patients who had ST-Elevation Myocardial Infarction within 1 week before being included
  6. Patients with severe congestive heart failure or grade IV heart failure
  7. Patients with moderate or severe valvular heart disease
  8. Patients who had heart transplantation
  9. Patients with renal insufficiency ( \< 30mL/min)
  10. The patients have a of less than 12 months, or it would be difficult to finish follow-ups within 12 months.
  11. The patients are participating in any other clinical trials before reaching the primary endpoints
  12. Patients who are unsuitable for the study according to the investigator due to other reasons

    Related to the Lesion:

  13. Patients with total occlusion at the target lesion
  14. Lesion which cannot be treated by percutaneous transluminal coronary angioplasty (PTCA) or percutaneous intervention (PCI)
  15. Reference vessel diameter \< 2.0mm
  16. Patients with multiple lesions (≥ 3) requiring percutaneous coronary intervention treatment in the same artery
  17. 3-vessel disease that all need to be intervened
  18. The diameter of the branch lesions in the target lesion ≥ 2.5mm
  19. LM lesions and Ostial lesion within 5mm to the root aorta
  20. Non-target lesion was not intervened successfully before target lesions being intervened

    Related to concomitant therapy:

  21. Patients cannot tolerate aspirin and/or clopidogrel and or tricagrelor, patients with the history of neutrocytopenia or thrombocytopenia, or patients with severe hypohepatia and prohibited to take clopidogrel
  22. Patients known allergic to paclitaxel
  23. Patients known allergic to contrast materials
Terms in these criteria, in plain language(5)

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.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
260 participants (actual)

Study arms

  • Experimental
    Dissolve™

    Device: Dissolve™

  • Active comparator
    SeQuent®Please

    Device: SeQuent®Please

Interventions

  • DeviceDissolve™

    Dissolve™ are to be used in the trial

  • DeviceSeQuent®Please

    SeQuent®Please are to be used in the trial

06

What researchers measure

Primary outcomes

  1. In-segment Late Lumen Loss

    In-segment late lumen loss is defined as the change in minimal lumen diameter (MLD) within the margins of the device and 5 mm proximal and 5 mm distal to the device from post-procedure to 9 months by angiography.

    Time frame: From the end of procedure to 9 months after the procedure

Secondary outcomes

  1. Device success rate of the interventional therapy

    Successful delivery and use of the assigned balloon at the intended target lesion and successful withdrawal of the delivery system with attainment of final residual stenosis of less than 30% and TIMI 3 blood flow by visual estimation.

    Time frame: From the start of index procedure to end of index procedure

  2. Lesion success rate of the interventional therapy

    Attainment of final residual stenosis of target lesion less than 30% and TIMI 3 blood flow by visual estimation.

    Time frame: From the start of index procedure to end of index procedure

  3. Clinical success rate of the interventional therapy

    Achievement of final residual stenosis of less than 30% by visual estimation with successful delivery and use of assigned balloon at the intended target lesion and successful withdrawal of the delivery system for the target lesion without the occurrence of cardiac death, target vessel Myocardial Infarction (MI) or repeat Target lesion revascularization (TLR).

    Time frame: 7 days after the procedure

  4. Rate of restenosis in the target lesions

    Restenosis is defined as stenosis \> 30% by angiography

    Time frame: 9 months after the procedure

  5. TLR rate

    Time frame: 9 months after the procedure

  6. Target vessel revascularization (TVR) rate

    Time frame: 9 months after the procedure

  7. Target lesion failure (TLF) rate

    Time frame: 9 months after the procedure

  8. Rate of major adverse cardiovascular events

    Time frame: 1 month, 6 months, 9 months, 1 year, 2 years, 3 years, 4 years and 5 years after the procedure

  9. Rate of all adverse events and severe adverse events

    Time frame: 1 month, 6 months, 9 months, 1 year, 2 years, 3 years, 4 years and 5 years after the procedure

07

Study locations

15 sites
  • Beijing Anzhen Hospital, Capital Medical University
    Beijing, China
  • Beijing Friendship Hospital, Capital Medical University
    Beijing, China
  • Beijing Hospital
    Beijing, China
  • Fuwai Hospital, Chinese Academy of Medical Sciences
    Beijing, China
  • Peking Union Medical College Hospital
    Beijing, China
  • Peking University People's Hospital, Capital Medical University
    Beijing, China
  • Xiangya Hospital of Central South University
    Changsha, China
  • West China Hospital, Sichuan University
    Chengdu, China
  • The First Affiliated Hospital of Dalian Medical University
    Dalian, China
  • The Second Affiliated Hospital of Dalian Medical University
    Dalian, China
  • General Hospital of Daqing Oil Field
    Daqing, China
  • Sir Run Run Shaw Hospital, Zhejiang University School of medicine
    Hangzhou, China
  • The First Affiliated Hospital of Zhengzhou University
    Hangzhou, China
  • Union Hospital, Tongji Medical College Huazhong University of Science and Technology
    Wuhan, China
  • General Hospital of Ningxia Medical University
    Yinchuan, China
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Feb 2018 to primary completion in Jan 2020, 22 months.

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

Registered
Dec 5, 2017
First posted
Dec 14, 2017
StartActual
Feb 22, 2018
Primary completionActual
Jan 9, 2020
CompletionActual
Apr 24, 2024
Last update
Feb 20, 2025
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 Feb 20, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03373695
Lead sponsor
DK Medical Technology (Suzhou) Co., Ltd.
Collaborators
Core Medical (Beijing) Co., Ltd.
Responsible party
Sponsor
First posted
Dec 14, 2017
Start date
Feb 22, 2018
Primary completion
Jan 9, 2020
Completion
Apr 24, 2024
Last update
Feb 20, 2025

Study contacts

Shubin Qiao
principal investigator · Chinese Academy of Medical Sciences, Fuwai Hospital

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2025. You cannot join it, but the record below documents what was studied.

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