NCT05371145

Brief Summary

Oral supplementation of L-carnosine will increase muscle carnosine, stabilize HIF1-alpha promote angiogenesis, and thus improve the functioning of lower extremities in PAD patients.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
20

participants targeted

Target at P25-P50 for phase_1

Timeline
Completed

Started Mar 2023

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 29, 2022

Completed
13 days until next milestone

First Posted

Study publicly available on registry

May 12, 2022

Completed
10 months until next milestone

Study Start

First participant enrolled

March 1, 2023

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 30, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2024

Completed
Last Updated

July 22, 2024

Status Verified

July 1, 2024

Enrollment Period

1.8 years

First QC Date

April 29, 2022

Last Update Submit

July 18, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Carnosine for Peripheral Arterial Disease patients

    Compare the effects of carnosine supplementation on the 6-minute walk test (6MWT) at the baseline and after three months of carnosine supplementation. Measure the total walking distance and compare the walking distance covered by the subjects at the start and completion of carnosine supplementation

    One year

Secondary Outcomes (1)

  • Graded treadmill test

    one year

Study Arms (1)

Carnosine intervention for patients with PAD

EXPERIMENTAL

This is a single arm open labelled safety trial, where we will supplement carnosine for 3 months to subjects with non-claudication and claudication peripheral arterial disease (PAD), and determine if it improves walking ability.

Biological: Carnosine

Interventions

CarnosineBIOLOGICAL

Determine whether carnosine supplementation (2 g/day) for 3 months in peripheral arterial disease patients improves 6MWT ability.

Carnosine intervention for patients with PAD

Eligibility Criteria

Age50 Years - 80 Years
Sexmale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male subjects more than \>50 to \<80 years of age.
  • White or African American race.
  • English Speaking.
  • ABI 0.4-\< 0.60
  • Willing to comply with protocol requirements.
  • Able to provide informed consent. -

You may not qualify if:

  • Subjects with HIV, hepatitis, significant liver disease, active infection, anemia, organ transplant, renal disease requiring dialysis, lung disease requiring oxygen, significant congenital heart disease, cancer of any type, and untreated thyroid disease.
  • Diagnosis of carnosinemia.
  • Known allergy to L-carnosine or meat.
  • Presence of a pacemaker.
  • Obesity from a known genetic defect.
  • Dementia.
  • Critical limb ischemia with below or above knee amputations.
  • Foot ulcers.
  • Major amputations.
  • Participating in other clinical trials.
  • End stage renal disease.
  • Presence of significant injury within 30 days before enrollment.
  • Prisoners.
  • Any metallic implants.
  • Poorly controlled diabetes (HbA1C \>9%) -

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Louisville

Louisville, Kentucky, 40202, United States

RECRUITING

Related Publications (10)

  • Annex BH. Therapeutic angiogenesis for critical limb ischaemia. Nat Rev Cardiol. 2013 Jul;10(7):387-96. doi: 10.1038/nrcardio.2013.70. Epub 2013 May 14.

  • Hiatt WR, Hoag S, Hamman RF. Effect of diagnostic criteria on the prevalence of peripheral arterial disease. The San Luis Valley Diabetes Study. Circulation. 1995 Mar 1;91(5):1472-9. doi: 10.1161/01.cir.91.5.1472.

  • Criqui MH, Aboyans V. Epidemiology of peripheral artery disease. Circ Res. 2015 Apr 24;116(9):1509-26. doi: 10.1161/CIRCRESAHA.116.303849.

  • Lombardi C, Carubelli V, Lazzarini V, Vizzardi E, Bordonali T, Ciccarese C, Castrini AI, Dei Cas A, Nodari S, Metra M. Effects of oral administration of orodispersible levo-carnosine on quality of life and exercise performance in patients with chronic heart failure. Nutrition. 2015 Jan;31(1):72-8. doi: 10.1016/j.nut.2014.04.021. Epub 2014 May 10.

  • Drozak J, Veiga-da-Cunha M, Vertommen D, Stroobant V, Van Schaftingen E. Molecular identification of carnosine synthase as ATP-grasp domain-containing protein 1 (ATPGD1). J Biol Chem. 2010 Mar 26;285(13):9346-9356. doi: 10.1074/jbc.M109.095505. Epub 2010 Jan 22.

  • Teufel M, Saudek V, Ledig JP, Bernhardt A, Boularand S, Carreau A, Cairns NJ, Carter C, Cowley DJ, Duverger D, Ganzhorn AJ, Guenet C, Heintzelmann B, Laucher V, Sauvage C, Smirnova T. Sequence identification and characterization of human carnosinase and a closely related non-specific dipeptidase. J Biol Chem. 2003 Feb 21;278(8):6521-31. doi: 10.1074/jbc.M209764200. Epub 2002 Dec 6.

  • Hipkiss AR. Energy metabolism, proteotoxic stress and age-related dysfunction - protection by carnosine. Mol Aspects Med. 2011 Aug;32(4-6):267-78. doi: 10.1016/j.mam.2011.10.004. Epub 2011 Oct 15.

  • Harris RC, Stellingwerff T. Effect of beta-alanine supplementation on high-intensity exercise performance. Nestle Nutr Inst Workshop Ser. 2013;76:61-71. doi: 10.1159/000350258. Epub 2013 Jul 25.

  • Caruso J, Charles J, Unruh K, Giebel R, Learmonth L, Potter W. Ergogenic effects of beta-alanine and carnosine: proposed future research to quantify their efficacy. Nutrients. 2012 Jul;4(7):585-601. doi: 10.3390/nu4070585. Epub 2012 Jun 26.

  • Roger VL, Go AS, Lloyd-Jones DM, Adams RJ, Berry JD, Brown TM, Carnethon MR, Dai S, de Simone G, Ford ES, Fox CS, Fullerton HJ, Gillespie C, Greenlund KJ, Hailpern SM, Heit JA, Ho PM, Howard VJ, Kissela BM, Kittner SJ, Lackland DT, Lichtman JH, Lisabeth LD, Makuc DM, Marcus GM, Marelli A, Matchar DB, McDermott MM, Meigs JB, Moy CS, Mozaffarian D, Mussolino ME, Nichol G, Paynter NP, Rosamond WD, Sorlie PD, Stafford RS, Turan TN, Turner MB, Wong ND, Wylie-Rosett J; American Heart Association Statistics Committee and Stroke Statistics Subcommittee. Heart disease and stroke statistics--2011 update: a report from the American Heart Association. Circulation. 2011 Feb 1;123(4):e18-e209. doi: 10.1161/CIR.0b013e3182009701. Epub 2010 Dec 15.

MeSH Terms

Conditions

Peripheral Arterial Disease

Interventions

Carnosine

Condition Hierarchy (Ancestors)

AtherosclerosisArteriosclerosisArterial Occlusive DiseasesVascular DiseasesCardiovascular DiseasesPeripheral Vascular Diseases

Intervention Hierarchy (Ancestors)

NeuropeptidesPeptidesAmino Acids, Peptides, and ProteinsDipeptidesOligopeptidesNerve Tissue ProteinsProteins

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: In a single arm open labelled safety trial, we will supplement carnosine for 3 months to subjects with non-claudication and claudication peripheral arterial disease (PAD), and determine if it improves walking ability. In our pilot study, we will enroll 20 male subjects measure the distance covered on the 6-minute walk test and the pain free walking capacity on the treadmill before, at baseline, and three months after carnosine supplementation.
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

April 29, 2022

First Posted

May 12, 2022

Study Start

March 1, 2023

Primary Completion

December 30, 2024

Study Completion

December 30, 2024

Last Updated

July 22, 2024

Record last verified: 2024-07

Data Sharing

IPD Sharing
Will not share

Locations