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AtherosclerosisPhase 4TEA-PARTYNCT05813171

The Effects of Allicor on Patients After Revascularization Treatment During a Year

A Phase 4 study testing Allicor in people with Atherosclerosis and Peripheral Arterial Disease, run by Institute for Atherosclerosis Research, Russia at 1 site in Russia.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

A significant challenge in medical care is atherosclerotic occlusion of peripheral arteries, such as lower extremities and brachiocephalic arteries, which can eventually lead to loss of limbs or fatal ischemic strokes. Read more about this study

Who is it for?
Ages 40 to 75 years
Conditions the study is for
Atherosclerosis, Peripheral Arterial Disease
What is being tested?
Allicor
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
300 participants
Where
1 siteRussia
Study dates
20 Apr 2023to 31 May 2024
Phase
Phase 4
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 40 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age >40 and <75 years
  • A revascularization (including stenting, endarterectomy, artery prosthetic or bypass grafting) is indicated for the patient because of chronic atherosclerotic obliteration of the arteries of the lower extremities and/or common carotid arteries.
  • Patients passed a complex of instrumental and laboratory examinations before revascularization, including X-ray contrast angiography or ultrasound examination of common carotid arteries and arteries of the lower extremities, the ankle-brachial index (ABI) assessment, biochemical analysis of blood included assessment of cholesterol, triglycerides, low density lipoproteins, high density lipoproteins and glucose levels.
  • The possibility of monitoring the patient for 12 months after revascularization, including phone contacts and visits to the clinic after 6 and 12 months.
  • Patient or legal authorized representative capable of giving signed informed consent, which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol.

Who cannot join

  • Repeated revascularization surgery.
  • Trophic ulcers of the lower extremities.
  • Critical and urgent cardiovascular conditions: tissue ischemia stage III-IV, stroke, acute coronary syndrome, myocardial infarction, chronic heart failure III and IV class NYHA (New York Heart Association).
  • Other critical and urgent conditions not associated with cardiovascular diseases, including the need for urgent interventions, chronic renal failure stages IV-V (creatinine clearance < 30 ml / min according to the Cockcroft-Gault Equation)
  • High degree of disability of the patient (4 or higher points on the modified Rankin scale).
  • History of systemic autoimmune diseases.
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  • Significant weight loss (> 10% of body weight in the previous year) of unknown etiology.
  • Conditions that limit adherence to participation in the study (dementia, neuropsychiatric diseases, drug addiction, alcoholism, etc.).
  • Participation in other clinical studies (or use of investigational substances) within 3 months prior to study entry.
  • Patients with malignant tumors, including the postoperative period with chemotherapy and/or radiation therapy.
  • Carriers of HIV or viral hepatitis
  • Pregnancy or breast feeding
  • Refusal to participate in the study.

Trial locations and contacts

1 site in 1 country.

Nikolay K Shakhpazyan, PhD; Dr. contact

+79168244496

nshakhpazyan@gmail.com

Russia1 site
  • Institute for Atherosclerosis Research

    Moscow, 121609

    Varvara A Orekhova, MD, +0079629325095, varvaraao@gmail.com

    Alexander N Orekhov, PhD, DSc

Other trials in Russia

About this study

Official title: The Effects of Dietary Supplementation Allicor on Patients With Multifocal Atherosclerosis After Peripheral Artery Revascularization Treatment During a Year

A significant challenge in medical care is atherosclerotic occlusion of peripheral arteries, such as lower extremities and brachiocephalic arteries, which can eventually lead to loss of limbs or fatal ischemic strokes. Revascularizing surgical interventions can restore the lumen of the arteries and provide an effective way to treat such patients. However, up to a third of patients need re-intervention or experience cardiovascular complications within a year after surgery. The purpose of this study is to evaluate the effect of adding the natural dietary supplement Allicor to conventional treatment on the incidence of cardiovascular complications and treatment effectiveness 12 months after revascularization. Another valuable area of investigation is the search for predictors of long-term cardiovascular complications after revascularization, which could be markers of inflammation and heteroplasmy levels in the patient's mitochondrial genome.

Read the detailed description

Recently, atherosclerosis of large arteries has become a common problem affecting the quality of life and life expectancy of the population. In addition to atherosclerosis of coronary arteries leading to myocardial ischemia, another significant issue is atherosclerosis of the lower limb and brachiocephalic arteries. Typically, arteries are affected in multiple areas, resulting in multifocal atherosclerosis of several arterial basins. Consequently, 14 to 19% of patients suffering from damage to the arteries of the lower extremities have significant stenosis of the common carotid arteries. Clinical guidelines from the European Society of Cardiology (ESC) and the European Society for Vascular Surgery (ESVS) emphasize the need to examine other arteries in patients with atherosclerosis of the arteries of the lower extremities. Clinical screening for carotid and subclavian artery stenosis is also recommended.

The surgical method for treating arterial occlusive lesions includes revascularization interventions to restore blood flow, thus eliminating tissue ischemia and preventing fatal and disabling consequences. In addition to surgical treatment, medications that lower blood cholesterol and reduce blood thrombogenesis are used.

An important predictor of disease and treatment efficiency is the level of systemic inflammatory markers, such as protein-C. An anti-inflammatory approach is not used for treating patients with multifocal atherosclerosis. However, investigating new markers of inflammation may be promising for the development of new diagnostics.

Insofar as up to a third of patients face the need for re-intervention or suffer cardiovascular complications within a year after revascularization surgery, the search for new approaches to treat multifocal arterial atherosclerosis is necessary.

Long-term use of drugs of natural origin with anti-inflammatory and anti-atherosclerotic effects may be promising.

Dietary Supplementation Allicor consists of dried garlic. There is a trial study (ClinicalTrials.gov Identifier: NCT01734707) that determined the ability of Allicor to have a beneficial effect on patients with atherosclerosis, and there are also data on the beneficial effect of Allicor on the condition of patients with coronary heart disease. Another randomized, double-blind, placebo-controlled trial of a dietary supplement made of garlic (ClinicalTrials.gov Identifier: NCT03860350) found benefits for patients with coronary artery atherosclerosis. Thus, there is reason to believe that Allicor will improve treatment outcomes in patients with multifocal atherosclerosis.

The aim of this study is to investigate how the addition of Allicor to the standard treatment affects the incidence of serious cardiovascular events during a year after revascularization intervention. Also to be assessed is the need for repeated operations, as well as an evaluation of arterial flow and arterial wall. The study will also assess promising markers related to atherosclerosis and inflammation - an in vitro monocyte cytokine release test, and heteroplasmy levels of the patient's mitochondrial genome variants associated with atherosclerosis.

Being tested
Allicor, Placebo
Keywords
atherosclerosis, inflammation, DNA, Mitochondrial
Medical subject headings
Atherosclerosis, Peripheral Arterial Disease, Inflammation

What participants receive

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

  • AllicorDietary supplement

    Also called 150 mg capsules of dried dried garlic powder

    Participants will take Allicor capsules in addition to standard treatment for a year.

  • PlaceboDrug

    Also called 150 mg inert capsules mimic capsules Allicor

    Participants will take the placebo capsules in addition to standard treatment for a year.

Study groups in NCT05813171
Study groupRoleWhat they receive
Experimental: AllicorActive comparatorDietary Supplement: Allicor 150 mg capsule by mouth two times a day during the year
Receives: Dietary Supplement: Allicor
PlaceboPlacebo comparatorPlacebo capsule manufactured to mimic Allicor 150 mg capsule by mouth two times a day during the year
Receives: Drug: Placebo

What is being measured

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

  1. Frequency of fatal cardiovascular events

    Fatal cardiovascular events include: death from myocardial infarction, other forms of coronary heart disease (CHD), stroke, including sudden death and death within 24 hours of symptom onset, death from other non-coronary cardiovascular diseases except definitely non-atherosclerotic causes of death.

    Measured: Evaluated in 12 months from revascularization interventions

  2. Frequency of clinically significant cardiovascular events

    Clinically significant cardiovascular events include: acute myocardial infarction and acute coronary syndrome, acute cerebrovascular accident, progressive heart failure, hospitalization due to critical limb ischemia.

    Measured: Evaluated in 12 months from revascularization interventions

  3. Frequency of indications for a second revascularization

    Frequency of second revascularization events during the year.

    Measured: Evaluated in 12 months from revascularization interventions

Secondary outcomes (6)
  1. Change in the degree of stenosis of the peripheral arteries (lower limbs arteries, common carotid arteries)

    According to angiography or ultrasonography examination

    Measured: Evaluated in 6 and in 12 months from revascularization interventions

  2. Variation of intima-media thickness of common carotid arteries

    Variation of intima-media thickness of common carotid arteries measured with B-mode ultrasound of carotid arteria.

    Measured: Evaluated in 6 and in 12 months from revascularization interventions

  3. The maximal walking distance (MWD)

    Measuring the maximal walking distance (MWD) with treadmill exercise testing

    Measured: Evaluated in 6 and in 12 months from revascularization interventions

  4. Change in the ankle-brachial index (ABI)

    Determination of the ratio systolic blood pressure within the brachial arteries and systolic blood pressure within the ankle arteries.

    Measured: Evaluated in 6 and in 12 months from revascularization interventions.

  5. Change in the level of cytokine response of monocytes after double stimulation with lipopolysaccharide in in vitro cell culture

    Cytokine level measurement by ELISA (TNF-a; IL-1b; IL-6; IL-8; IL-10; CCL2) after the first and second LPS stimulation of monocytes.

    Measured: Evaluated in 6 and in 12 months from revascularization interventions

  6. Changes in the percentage of heteroplasmy of the mitochondrial genome of blood leukocytes in variants associated with atherosclerosis

    Includes variants m.12315G>A, m.13513G>A, m.14459G>A, m.14846G>A, m.15059G>A, m.1555A>G, m.3256C>T, m.3336T>C, m.5178C>A, m.652delG measured with quantitative PCR.

    Measured: Evaluated in 6 and in 12 months from revascularization interventions.

Timeline

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

  1. First posted14 Apr 2023
  2. Study start20 Apr 2023 (estimated)
  3. Primary completion20 Apr 2024 (estimated)
  4. Study completion31 May 2024 (estimated)

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
A randomized controlled trial with two parallel groups of participants
Masking
Double blind
Who is masked
Participant, Care provider
Enrolment
300 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05813171
Sponsor's protocol ID
IAR-AL-MFA
Acronym
TEA-PARTY
Status last verified
Apr 2023
First submitted
2 Apr 2023
Last updated
19 Apr 2023
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Aboyans V, Ricco JB, Bartelink MEL, Bjorck M, Brodmann M, Cohnert T, Collet JP, Czerny M, De Carlo M, Debus S, Espinola-Klein C, Kahan T, Kownator S, Mazzolai L, Naylor AR, Roffi M, Rother J, Sprynger M, Tendera M, Tepe G, Venermo M, Vlachopoulos C, Desormais I, Document Reviewers, Widimsky P, Kolh P, Agewall S, Bueno H, Coca A, De Borst GJ, Delgado V, Dick F, Erol C, Ferrini M, Kakkos S, Katus HA, Knuuti J, Lindholt J, Mattle H, Pieniazek P, Piepoli MF, Scheinert D, Sievert H, Simpson I, Sulzenko J, Tamargo J, Tokgozoglu L, Torbicki A, Tsakountakis N, Tunon J, Vega de Ceniga M, Windecker S, Zamorano JL. Editor's Choice - 2017 ESC Guidelines on the Diagnosis and Treatment of Peripheral Arterial Diseases, in collaboration with the European Society for Vascular Surgery (ESVS). Eur J Vasc Endovasc Surg. 2018 Mar;55(3):305-368. doi: 10.1016/j.ejvs.2017.07.018. Epub 2017 Aug 26. No abstract available.

    PubMed 28851596
  • Mahe G, Boge G, Bura-Riviere A, Chakfe N, Constans J, Goueffic Y, Lacroix P, Le Hello C, Pernod G, Perez-Martin A, Picquet J, Sprynger M; SFMV/SCVE group; SFMV/SCVE group. Disparities Between International Guidelines (AHA/ESC/ESVS/ESVM/SVS) Concerning Lower Extremity Arterial Disease: Consensus of the French Society of Vascular Medicine (SFMV) and the French Society for Vascular and Endovascular Surgery (SCVE). Ann Vasc Surg. 2021 Apr;72:1-56. doi: 10.1016/j.avsg.2020.11.011. Epub 2020 Dec 24.

    PubMed 33359707
  • Falk E. Pathogenesis of atherosclerosis. J Am Coll Cardiol. 2006 Apr 18;47(8 Suppl):C7-12. doi: 10.1016/j.jacc.2005.09.068.

    PubMed 16631513
  • Jaberi N, Soleimani A, Pashirzad M, Abdeahad H, Mohammadi F, Khoshakhlagh M, Khazaei M, Ferns GA, Avan A, Hassanian SM. Role of thrombin in the pathogenesis of atherosclerosis. J Cell Biochem. 2019 Apr;120(4):4757-4765. doi: 10.1002/jcb.27771. Epub 2018 Sep 30.

    PubMed 30269382
  • Bonati LH, Gregson J, Dobson J, McCabe DJH, Nederkoorn PJ, van der Worp HB, de Borst GJ, Richards T, Cleveland T, Muller MD, Wolff T, Engelter ST, Lyrer PA, Brown MM; International Carotid Stenting Study investigators. Restenosis and risk of stroke after stenting or endarterectomy for symptomatic carotid stenosis in the International Carotid Stenting Study (ICSS): secondary analysis of a randomised trial. Lancet Neurol. 2018 Jul;17(7):587-596. doi: 10.1016/S1474-4422(18)30195-9. Epub 2018 Jun 1.

    PubMed 29861139
  • Paraskevas KI, Giannoukas AD, Mikhailidis DP. Statins and infrainguinal vascular bypass procedures. Curr Vasc Pharmacol. 2013 Jan;11(1):51-7.

    PubMed 23391423
  • Ceyhun G, Engin MC. The Monocyte/High Density Lipoprotein Cholesterol Ratio (MHR) as an Indicator of the Need for Amputation in Patients With Peripheral Artery Disease Developing Critical Limb Ischemia. Angiology. 2021 Mar;72(3):268-273. doi: 10.1177/0003319720965808. Epub 2020 Oct 14.

    PubMed 33108889
  • Ward NC, Watts GF, Eckel RH. Response by Ward et al to Letter Regarding Article, "Statin Toxicity: Mechanistic Insights and Clinical Implications". Circ Res. 2019 Jun 7;124(12):e121-e122. doi: 10.1161/CIRCRESAHA.119.315233. Epub 2019 Jun 6. No abstract available.

    PubMed 31170055
  • Bradley JM, Organ CL, Lefer DJ. Garlic-Derived Organic Polysulfides and Myocardial Protection. J Nutr. 2016 Feb;146(2):403S-409S. doi: 10.3945/jn.114.208066. Epub 2016 Jan 13.

    PubMed 26764335
  • Orekhov AN, Tertov VV. In vitro effect of garlic powder extract on lipid content in normal and atherosclerotic human aortic cells. Lipids. 1997 Oct;32(10):1055-60. doi: 10.1007/s11745-997-0136-7.

    PubMed 9358431
  • Orekhov AN, Grunwald J. Effects of garlic on atherosclerosis. Nutrition. 1997 Jul-Aug;13(7-8):656-63. doi: 10.1016/s0899-9007(97)83010-9.

    PubMed 9263259
  • Imaizumi VM, Laurindo LF, Manzan B, Guiguer EL, Oshiiwa M, Otoboni AMMB, Araujo AC, Tofano RJ, Barbalho SM. Garlic: A systematic review of the effects on cardiovascular diseases. Crit Rev Food Sci Nutr. 2023;63(24):6797-6819. doi: 10.1080/10408398.2022.2043821. Epub 2022 Feb 23.

    PubMed 35193446
  • Mollahosseini M, Hosseini-Marnani E, Panjeshahin A, Panbehkar-Jouybari M, Gheflati A, Mozaffari-Khosravi H. A systematic review of randomized controlled trials related to the effects of garlic supplementation on platelet aggregation. Phytother Res. 2022 Nov;36(11):4041-4050. doi: 10.1002/ptr.7556. Epub 2022 Oct 12.

    PubMed 36222178
  • Panyod S, Wu WK, Chen PC, Chong KV, Yang YT, Chuang HL, Chen CC, Chen RA, Liu PY, Chung CH, Huang HS, Lin AY, Shen TD, Yang KC, Huang TF, Hsu CC, Ho CT, Kao HL, Orekhov AN, Wu MS, Sheen LY. Atherosclerosis amelioration by allicin in raw garlic through gut microbiota and trimethylamine-N-oxide modulation. NPJ Biofilms Microbiomes. 2022 Jan 27;8(1):4. doi: 10.1038/s41522-022-00266-3.

    PubMed 35087050
  • Reinhart KM, Talati R, White CM, Coleman CI. The impact of garlic on lipid parameters: a systematic review and meta-analysis. Nutr Res Rev. 2009 Jun;22(1):39-48. doi: 10.1017/S0954422409350003.

    PubMed 19555517

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Allicor in people with Atherosclerosis and Peripheral Arterial Disease, run by Institute for Atherosclerosis Research, Russia at 1 site in Russia.

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 5 inclusion and 13 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: status not confirmed, as of the sponsor's last update on 19 Apr 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Russia. 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. Some participants in this study may receive a placebo. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Nikolay K Shakhpazyan, PhD; Dr. (+79168244496, nshakhpazyan@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Frequency of fatal cardiovascular events (time frame: Evaluated in 12 months from revascularization interventions). The study lists 3 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 NCT05813171, which also lists 27 linked publications.

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 19 Apr 2023.

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