ClinicalTrials.gg
Active, not recruitingNCT03022708Xplore2Updated Aug 6, 2026Results posted

Xeltis Bioabsorbable Pulmonary Valved Conduit Pivotal Study

An interventional study of Xeltis Bioabsorbable Pulmonary Valved Conduit in Heart Defect, Congenital, sponsored by Xeltis. Active, not recruiting at 10 sites in 4 countries. Open to participants aged 2 Years to 21 Years. Per ClinicalTrials.gov, last updated 2026-08-06.

Sponsored by Xeltis · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
6
Allocation
Not applicable
Ages
2 Years to 21 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 356 studies in Heart Defects, Congenital with a site in United States — 66 open to participants now, 87 under way, 4 of them phase 3. Heart Defects, Congenital · United States.

Enrollment
163rd of 184
6 · median 50
Started
2017
with 20 others
No phase
111 of 356
22 open now
Primary completion
2022-12
later than 4 of 86 live
Registered
188th of 356
by date

Among the 356 studies in Heart Defects, Congenital with a site in United States, this one is the 163rd largest by enrollment of the 184 interventional ones that give a count, is one of 21 that started in 2017, is one of 111 with no phase, reaches primary completion later than 4 of the 86 other live ones, and was the 188th registered.

Heart Defects, Congenital

991 studies on the registry are indexed under Heart Defects, Congenital; 251 are open to participants now.

Browse Heart Defects, Congenital studies →

Open to participants now

66 of the 356 studies in Heart Defects, Congenital with a site in United States are open now. Recruiting first, the newest first:

61 more — sign in →

All 66 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 154 Heart Defects, Congenital studies recruiting now, 67 (44%) set no upper age limit and 79 (51%) stop at 75 or younger; 110 take children under 18; 25 take healthy volunteers.

This study: 2 Years to 21 Years · all sexes · no healthy volunteers.

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02

Study summary

This is a multi-center prospective, single-arm, non-randomized, pivotal study that will continue to access the feasibility of the Xeltis Bioabsorbable Pulmonary Valved Conduit in subjects requiring right ventricular outflow tract correction or reconstruction due to congenital heart malformations.

03

Conditions studied

  • Heart Defect, Congenital
04

Who can participate

Ages eligible
2 Years to 21 Years
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

  1. Patient requiring RVOT reconstruction, suitable for 16 mm,18 mm, 20 mm and 22 mm valved conduit.
  2. Male or Female.
  3. Age > 2 years and \< 22 years.
  4. Right Ventricular to Pulmonary Artery peak gradient > 35mm Hg or moderate or severe Pulmonary regurgitation (≥3+), or have both (except for the patients undergoing a Ross procedure)
  5. The patient, and the patient's parent / legal representative where appropriate, has been informed of the nature of the study, agrees to its provisions and has provided written by signing the approved informed consent form.
  6. The patient, and the patient's parent / legal representative where appropriate, and the treating physician agree that the subject will return for all required post-procedure follow up visits and the subject will comply with clinical investigation plan required follow-up visits.

Exclusion criteria

Exclusion Criteria:

  1. Need for or presence of prosthetic heart valve at other position.
  2. Need for concomitant surgical procedures (non-cardiac).
  3. Patients with previously implanted pacemaker (including defibrillators), or mechanical valves.
  4. Active infection or requiring current antibiotic therapy (if temporary illness, subject may be a candidate 4 weeks after discontinuation of antibiotics) or viral infection.
  5. Active endocarditis.
  6. Leukopenia, defined as White Blood cell Count \< than:

    • 2-12 years: 5.0 ×103 /μL
    • 12 years - Adult:
    • Male: 4.5×103 /μL
    • Female: 4.5 ×103 /μL
  7. Acute or chronic anemia, defined as \< than:

    • 2-12 years 11.5 g /dl
    • 12-18:
    • Male: 13 g /dl
    • Female 12 g /dl
    • Adult:
    • Male: 13.5 g /dl
    • Female: 12 g /dl Patients can be transfused to meet eligibility criteria
  8. Thrombocytopenia, defined as count \< than:

    • 150,000/mm3 Patients can be transfused to meet eligibility criteria
  9. Severe chest wall deformity, which would preclude placement of the PV conduit.
  10. Pulmonary hypertension (≥ half of systemic systolic pressure)
  11. Right ventricular outflow tract aneurysm.
  12. Known to anticoagulants and antiplatelet drugs and to the device materials. .
  13. patient defined as: disease, patients receiving immunosuppressant drugs or immune stimulant drugs.
  14. Subject has chronic inflammatory / autoimmune disease.
  15. Need for emergency cardiac or vascular surgery or intervention.
  16. Major or progressive non-cardiac disease (liver failure, renal failure, cancer) that has a of less than one year.
  17. Currently participating, or participated within the last 30 days, in an drug or device study.
  18. Alcohol or drug abuse as defined by DSM IV-TR criteria for substance abuse - this includes the illicit use of cannabis within the last 12 months.
  19. Pregnancy.
  20. Females who are sexually active and are not willing to use adequate precautions for the next 2 years
  21. Subject has medical, social or psychosocial factors that, in the opinion of the Investigator, could impact safety or compliance.
Terms in these criteria, in plain language(9)

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.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

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.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

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.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

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.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
6 participants (actual)

Study arms

  • Experimental
    Xeltis Bioabsorbable Pulmonary Valved Conduit

    The Bioabsorbable Pulmonary Valved Conduit bio-absorbable, polymer-based medical device. The PV conduit is used in patients for correction or reconstruction of the Right Ventricular Outflow Tract (RVOT), in patients less than 22 years with any of the following congenital heart malformations: * Tetralogy of Fallot * Truncus Arteriosus * Pulmonary Atresia * Transposition of Great Arteries with Ventricular Septal Defect * Pulmonary Stenosis in combination with other defects in congenital heart defect (CHD) syndromes In addition, the PV conduit can be used for the following indications: * replacement of previously implanted, but dysfunctional, pulmonary homografts or valved conduits (except for mechanical valves, see exclusion criterion 3). * Patients undergoing a Ross procedure, where the PV conduit would replace the patient's own pulmonary valve which is used to replace a diseased aortic valve.

    Device: Xeltis Bioabsorbable Pulmonary Valved Conduit

Interventions

  • DeviceXeltis Bioabsorbable Pulmonary Valved Conduit

    Surgical implantation of Xeltis Bioabsorbable Pulmonary Valved Conduit

06

What researchers measure

Primary outcomes

  1. Composite Rate of Events of Device Related Death, Re-operation or Re-intervention at 12 Months Follow-up.

    Measured once all 12 month follow up visits have been completed

    Time frame: 12 months

Secondary outcomes

  1. Overall Rate of Device Related Death Due to Device Failure at 6 Months Follow up Post Implantation.

    Measured once all 6 month follow up visits have been completed

    Time frame: 6 months

  2. To Assess Overall Mortality Rate at 60 Months.

    Measured once all 60 month follow up visits have been completed.

    Time frame: 60 months post implant

  3. Overall Rate of Subjects Who Require Reoperation or Re-intervention Due to Device Failure 12 Months.

    Measured once all 12 month follow up visits have been completed.

    Time frame: 12 months

  4. Overall Rate of Subjects With a Mean Pressure Gradient Across the Area of Conduit Implantation of Less Than 40 mm Hg at 6 and 12 Months Follow up.

    Measured by echography at 6 and 12 months follow up.

    Time frame: 6 and 12 months

  5. Overall Rate of Subjects With Pulmonary Regurgitation of Equal or Less Than Moderate at 6 and 12 Months Follow up.

    Measured by echography at 6 and 12 months follow up.

    Time frame: 6 and 12 months

Other outcomes

  1. Measurement of Growth of Conduit in Pediatric Population Measured at 6, 36, 48 and 60 Months. A Competent Valve With Increased Valve Diameter in Age Groups < 18 Years in Correlation With the Increased Body Surface Area.

    Measured with echocardiography at 6, 36, 48 and 60 months follow up.

    Time frame: Up to 60 months

  2. Overall Satisfaction of the Implanting Surgeon of the Implantation Procedure of the Bio-absorbable Pulmonary Valve Conduit.

    Measured with a questionnaire given to the implanting surgeon at the time of implantation of the pulmonary valve conduit.

    Time frame: Day 0 - Implant

07

Results

Posted Aug 6, 2026

Participant flow

Participant flow — Overall Study
MilestoneXeltis Bioabsorbable Pulmonary Valved Conduit
Started6
12 month visit completed6
Follow-up ongoing6
Completed0
Not completed6

Outcome measures

PrimaryComposite Rate of Events of Device Related Death, Re-operation or Re-intervention at 12 Months Follow-up.

Measured once all 12 month follow up visits have been completed

Time frame:
12 months
Reported as:
Count of participants · Participants
Composite Rate of Events of Device Related Death, Re-operation or Re-intervention at 12 Months Follow-up.
ParticipantsXeltis Bioabsorbable Pulmonary Valved Conduit
Composite Rate of Events of Device Related Death, Re-operation or Re-intervention at 12 Months Follow-up.0
SecondaryOverall Rate of Device Related Death Due to Device Failure at 6 Months Follow up Post Implantation.

Measured once all 6 month follow up visits have been completed

Time frame:
6 months
Reported as:
Count of participants · Participants
Overall Rate of Device Related Death Due to Device Failure at 6 Months Follow up Post Implantation.
ParticipantsXeltis Bioabsorbable Pulmonary Valved Conduit
Overall Rate of Device Related Death Due to Device Failure at 6 Months Follow up Post Implantation.0
SecondaryTo Assess Overall Mortality Rate at 60 Months.

Measured once all 60 month follow up visits have been completed.

Time frame:
60 months post implant

Results for this outcome have not been posted.

SecondaryOverall Rate of Subjects Who Require Reoperation or Re-intervention Due to Device Failure 12 Months.

Measured once all 12 month follow up visits have been completed.

Time frame:
12 months
Reported as:
Count of participants · Participants
Overall Rate of Subjects Who Require Reoperation or Re-intervention Due to Device Failure 12 Months.
ParticipantsXeltis Bioabsorbable Pulmonary Valved Conduit
Overall Rate of Subjects Who Require Reoperation or Re-intervention Due to Device Failure 12 Months.0
Other pre-specifiedMeasurement of Growth of Conduit in Pediatric Population Measured at 6, 36, 48 and 60 Months. A Competent Valve With Increased Valve Diameter in Age Groups < 18 Years in Correlation With the Increased Body Surface Area.

Measured with echocardiography at 6, 36, 48 and 60 months follow up.

Time frame:
Up to 60 months

Results for this outcome have not been posted.

SecondaryOverall Rate of Subjects With a Mean Pressure Gradient Across the Area of Conduit Implantation of Less Than 40 mm Hg at 6 and 12 Months Follow up.

Measured by echography at 6 and 12 months follow up.

Time frame:
6 and 12 months
Reported as:
Count of participants · Participants
Overall Rate of Subjects With a Mean Pressure Gradient Across the Area of Conduit Implantation of Less Than 40 mm Hg at 6 and 12 Months Follow up.
ParticipantsXeltis Bioabsorbable Pulmonary Valved Conduit
at 6 months — Mean pressure gradient of less than 40 mm Hg5
at 6 months — Mean pressure gradient of more than 40 mm Hg0
at 6 months — Not assessable1
at 12 months — Mean pressure gradient of less than 40 mm Hg5
at 12 months — Mean pressure gradient of more than 40 mm Hg0
at 12 months — Not assessable1
SecondaryOverall Rate of Subjects With Pulmonary Regurgitation of Equal or Less Than Moderate at 6 and 12 Months Follow up.

Measured by echography at 6 and 12 months follow up.

Time frame:
6 and 12 months
Reported as:
Count of participants · Participants
Overall Rate of Subjects With Pulmonary Regurgitation of Equal or Less Than Moderate at 6 and 12 Months Follow up.
ParticipantsXeltis Bioabsorbable Pulmonary Valved Conduit
at 6 months — Equal or less than moderate pulmonary regurgitation5
at 6 months — More than moderate pulmonary regurgitation0
at 6 months — Not assessable1
at 12 months — Equal or less than moderate pulmonary regurgitation5
at 12 months — More than moderate pulmonary regurgitation0
at 12 months — Not assessable1
Other pre-specifiedOverall Satisfaction of the Implanting Surgeon of the Implantation Procedure of the Bio-absorbable Pulmonary Valve Conduit.

Measured with a questionnaire given to the implanting surgeon at the time of implantation of the pulmonary valve conduit.

Time frame:
Day 0 - Implant

Results for this outcome have not been posted.

Adverse events

Collected over From implant to 12 months follow-up. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Xeltis Bioabsorbable Pulmonary Valved Conduit0/6 (0%)1/6 (16.7%)3/6 (50%)
Most frequent serious events
Most frequent serious events
EventXeltis Bioabsorbable Pulmonary Valved Conduit
PneumoniaRespiratory, thoracic and mediastinal disorders1/6
Most frequent other events
Most frequent other events
EventXeltis Bioabsorbable Pulmonary Valved Conduit
Junctional rhythmCardiac disorders1/6
RhinovirusRespiratory, thoracic and mediastinal disorders1/6
Enterovirus infectionInfections and infestations1/6
AnemiaBlood and lymphatic system disorders1/6
Possible localized thrombusBlood and lymphatic system disorders1/6
CoughGeneral disorders1/6
Mild PV StenosisCardiac disorders1/6

Baseline characteristics

Age, Continuous
Age, Continuous(Years)Xeltis Bioabsorbable Pulmonary Valved Conduit
Mean6.5 ± 3.0
Sex: Female, Male
Sex: Female, Male(Participants)Xeltis Bioabsorbable Pulmonary Valved Conduit
Female4
Male2
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)Xeltis Bioabsorbable Pulmonary Valved Conduit
Race — White5
Race — Black or African American1
08

Study locations

10 sites
09

References and documents

Publications

  • Morales DL, Herrington C, Bacha EA, Morell VO, Prodan Z, Mroczek T, Sivalingam S, Cox M, Bennink G, Asch FM. A Novel Restorative Pulmonary Valve Conduit: Early Outcomes of Two Clinical Trials. Front Cardiovasc Med. 2021 Mar 4;7:583360. doi: 10.3389/fcvm.2020.583360. eCollection 2020. PubMed 33748192 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from May 2017 to primary completion in Dec 2022, 67 months.

Results were first posted in Aug 2026, 3 years 7 months after primary completion.

Of 223 interventional studies with no phase under Heart Defects, Congenital, half reached primary completion within 34 months of starting (the median), counting those still running; a quarter within 17 and three quarters within 57. This study's 67 months is above that.

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

Registered
Jan 10, 2017
First posted
Jan 16, 2017
StartActual
May 8, 2017
Primary completionActual
Dec 15, 2022
CompletionEst.
Dec 2026
Results first posted
Aug 6, 2026
Last update
Aug 6, 2026
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 Aug 6, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03022708
Lead sponsor
Xeltis
Responsible party
Sponsor
First posted
Jan 16, 2017
Start date
May 8, 2017
Primary completion
Dec 15, 2022
Completion
Dec 2026 (estimated)
Results posted
Aug 6, 2026
Last update
Aug 6, 2026

Study contacts

Eliane Schutte
study director · Xeltis Inc

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Jun 2026. You cannot join it, but the record below documents what was studied.

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