ClinicalTrials.gg
CompletedNCT04125732EXACTUpdated Jan 30, 2024

Epicardial Delivery of XC001 Gene Therapy for Refractory Angina Coronary Treatment (The EXACT Trial)

A Phase 1/2 interventional study of AdVEGFXC1 in Coronary Artery Disease, Ischemia and Angina Refractory, sponsored by XyloCor Therapeutics, Inc.. Completed at 16 sites in United States. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2024-01-30.

Sponsored by XyloCor Therapeutics, Inc. · Phase 1/2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Jan 2023, 3 years 9 months ago, and no results have been posted to the registry.
Phase
Phase 1/2
Study type
Interventional
Enrollment
41
Allocation
Non-randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

The primary purpose of this trial is to determine the safety of XC001 (AdVEGFXC1) in patients who suffer from angina caused by coronary artery disease and have no other treatment options. Subjects in this study will receive one of four intramyocardial doses of XC001 that expresses human vascular endothelial growth factor (VEGF) which induces therapeutic angiogenesis (revascularization).

Read the detailed description

This is a Phase 1/2, first-in-human, multicenter, open-label, single arm dose escalation trial of XC001. Approximately 12 subjects (N=3 per cohort) who have refractory angina will be enrolled into 4 ascending dose groups, followed by an expansion of the highest tolerated dose with 32 additional subjects. XC001 will be administered by a transthoracic epicardial procedure. Safety will be the focus for the initial 6 months after XC001 administration followed by one safety focused telephone evaluation at Month 12.

02

Conditions studied

  • Coronary Artery Disease
  • Ischemia
  • Angina Refractory
  • Cardiovascular Diseases
  • Heart Diseases

Keywords

  • Refractory angina
  • Coronary Artery Disease
  • Gene Therapy
03

In context

Coronary Artery Disease

4,857 studies on the registry are indexed under Coronary Artery Disease; 890 are open to participants now.

This study's enrollment of 41 is below the median of 124 across 3,006 interventional studies indexed under Coronary Artery Disease.

Browse Coronary Artery Disease studies →

Lead sponsor

XyloCor Therapeutics, Inc. is the lead sponsor of 3 studies on the registry; 2 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 80 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

  • Males and females, age 18 to 80 years
  • Diagnosis of chronic angina due to obstructive coronary artery disease that is to drug therapy and unsuitable for revascularization via coronary artery bypass graft or percutaneous coronary intervention
  • Angina class II-IV based on Canadian Cardiovascular Society Classification of Angina Pectoris
  • Adequate hematologic ( ≥ 10 g/dL, > 1.2 × 10\^3 per μL and count ≥ 75,000 per μL), hepatic ( and aspartate aminotransferase ≤ 3 x ; total ≤ 2 x ULN), and renal function ( > 29 mL/minute/1.73 m2)
  • Adequate if of
  • Must be willing and able to provide

Exclusion criteria

Exclusion Criteria:

  • ST elevation myocardial infarction (STEMI) or non-ST elevation myocardial infarction (NSTEMI) not requiring revascularization, transmural myocardial infarction or cerebral vascular accident within the past 30 days
  • Function Class III or IV or \< 25% within the 6 weeks prior to the screening visit
  • ≥ 8.5%, SBP \<90 or >180 mmHg, DBP >100 mmHg
  • Other concurrent medical conditions that could jeopardize the safety of the subject or objectives of the study
Terms in these criteria, in plain language(14)

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.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

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).

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

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.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

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.

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.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

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.

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.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

HbA1c

A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
41 participants (actual)

Study arms

  • Experimental
    AdVEGFXC1 at 1x10^9 vp

    Biological: AdVEGFXC1

  • Experimental
    AdVEGFXC1 at 1x10^10 vp

    Biological: AdVEGFXC1

  • Experimental
    AdVEGFXC1 at 4x10^10 vp

    Biological: AdVEGFXC1

  • Experimental
    AdVEGFXC1 at 1x10^11 vp

    Biological: AdVEGFXC1

Interventions

  • BiologicalAdVEGFXC1

    AdVEGFXC1 at one of 4 doses

    Also known as: XC001

06

What researchers measure

Primary outcomes

  1. Primary Endpoint (adverse events)

    Safety, as assessed by adverse events and serious adverse events

    Time frame: 6 months

Secondary outcomes

  1. Secondary Endpoint (Exercise tolerance test)

    Exercise tolerance test

    Time frame: 6 months

  2. Secondary Endpoint (Seattle Angina Questionnaire)

    Seattle Angina Questionnaire

    Time frame: 6 months

  3. Secondary Endpoint (Canadian Cardiovascular Society angina class)

    Canadian Cardiovascular Society angina class

    Time frame: 6 months

  4. Secondary Endpoint (Angina episodes)

    Angina episodes

    Time frame: 6 months

07

Study locations

16 sites
  • Stanford University
    Stanford, California 94305, United States
  • MedStar Washington Hospital Center
    Washington, District of Columbia 20010, United States
  • Cardiology Research Associates
    Daytona Beach, Florida 32117, United States
  • University of Florida
    Gainesville, Florida 32610, United States
  • James A. Haley VA Medical Center
    Tampa, Florida 33612, United States
  • Emory University
    Atlanta, Georgia 30322, United States
  • Minneapolis Heart Institute Foundation
    Minneapolis, Minnesota 55407, United States
  • Duke University
    Durham, North Carolina 27710, United States
  • The Christ Hospital / The Lindner Research Center
    Cincinnati, Ohio 45219, United States
  • University of Cincinnati
    Cincinnati, Ohio 45267, United States
  • Cleveland Clinic
    Cleveland, Ohio 44195, United States
  • The Ohio State University
    Columbus, Ohio 43210, United States
  • Lehigh Valley Health Network
    Allentown, Pennsylvania 18103, United States
  • Houston Methodist
    Houston, Texas 77030, United States
  • Texas Heart Institute
    Houston, Texas 77030, United States
  • University of Washington
    Seattle, Washington 98195, United States
08

References and documents

Publications

  • Stewart DJ, Hilton JD, Arnold JM, Gregoire J, Rivard A, Archer SL, Charbonneau F, Cohen E, Curtis M, Buller CE, Mendelsohn FO, Dib N, Page P, Ducas J, Plante S, Sullivan J, Macko J, Rasmussen C, Kessler PD, Rasmussen HS. Angiogenic gene therapy in patients with nonrevascularizable ischemic heart disease: a phase 2 randomized, controlled trial of AdVEGF(121) (AdVEGF121) versus maximum medical treatment. Gene Ther. 2006 Nov;13(21):1503-11. doi: 10.1038/sj.gt.3302802. Epub 2006 Jun 22. PubMed 16791287 ↗
  • Povsic TJ, Henry TD, Ohman EM, Pepine CJ, Crystal RG, Rosengart TK, Reinhardt RR, Dittrich HC, Traverse JH, Answini GA, Mokadam NA. Epicardial delivery of XC001 gene therapy for refractory angina coronary treatment (The EXACT Trial): Rationale, design, and clinical considerations. Am Heart J. 2021 Nov;241:38-49. doi: 10.1016/j.ahj.2021.06.013. Epub 2021 Jul 2. PubMed 34224684 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Jan 2020 to primary completion in Jan 2023, 36 months.

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

Registered
Oct 4, 2019
First posted
Oct 14, 2019
StartActual
Jan 24, 2020
Primary completionActual
Jan 31, 2023
CompletionActual
May 30, 2023
Last update
Jan 30, 2024
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 Jan 30, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04125732
Lead sponsor
XyloCor Therapeutics, Inc.
Responsible party
Sponsor
First posted
Oct 14, 2019
Start date
Jan 24, 2020
Primary completion
Jan 31, 2023
Completion
May 30, 2023
Last update
Jan 30, 2024

Oversight

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

Not currently enrolling

This study is completed, as verified in Jan 2024. You cannot join it, but the record below documents what was studied.

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Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

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Studies of the drug tested here: Encoberminogene rezmadenovec

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