Page last updated: 2024-10-20

pyruvic acid and Intermittent Claudication

pyruvic acid has been researched along with Intermittent Claudication in 9 studies

Pyruvic Acid: An intermediate compound in the metabolism of carbohydrates, proteins, and fats. In thiamine deficiency, its oxidation is retarded and it accumulates in the tissues, especially in nervous structures. (From Stedman, 26th ed)
pyruvic acid : A 2-oxo monocarboxylic acid that is the 2-keto derivative of propionic acid. It is a metabolite obtained during glycolysis.

Intermittent Claudication: A symptom complex characterized by pain and weakness in SKELETAL MUSCLE group associated with exercise, such as leg pain and weakness brought on by walking. Such muscle limpness disappears after a brief rest and is often relates to arterial STENOSIS; muscle ISCHEMIA; and accumulation of LACTATE.

Research

Studies (9)

TimeframeStudies, this research(%)All Research%
pre-19906 (66.67)18.7374
1990's2 (22.22)18.2507
2000's1 (11.11)29.6817
2010's0 (0.00)24.3611
2020's0 (0.00)2.80

Authors

AuthorsStudies
Maass, U4
Alexander, K3
Sjöström, M1
Neglén, P1
Fridén, J1
Eklöf, B1
Goller, B3
Grothe, R1
Schneider, B2
Hou, XY1
Green, S1
Askew, CD1
Barker, G1
Green, A1
Walker, PJ1
Rexroth, W1
Hild, R1
Grote, R2
Nehmiz, G1
Brevetti, G1
Chiariello, M1
Ferulano, G1
Policicchio, A1
Nevola, E1
Rossini, A1
Attisano, T1
Ambrosio, G1
Siliprandi, N1
Angelini, C1
Walker, PM1
Harris, KA1
Tanner, WR1
Harding, R1
Romaschin, AD1
Mickle, DA1

Clinical Trials (1)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
Evaluation of Cilostazol in Combination With L-Carnitine in Subjects With Intermittent Claudication[NCT00822172]Phase 4164 participants (Actual)Interventional2008-09-30Completed
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trial Outcomes

Change From Baseline in Claudication Onset Time at Day 180

Subjects were asked to complete a standardized exercise treadmill test using a modified Gardner protocol. Subjects walked on the treadmill until they were physically unable to walk further either as a result of their peripheral artery disease (PAD) symptoms or other non-PAD symptoms. The time during the conduct of the exercise treadmill test at which the subject first reported claudication symptoms is referred to as the claudication onset time (COT) and reported in minutes/seconds. The exercise treadmill test was conducted at Screening, Baseline, Day 90, and Day 180 visits. The log transformation is used to make highly skewed distributions less skewed. (NCT00822172)
Timeframe: Baseline, Day 180

InterventionLog Minutes (Mean)
Cilostazol + L-Carnitine1.065
Cilostazol + Placebo0.896

Change From Baseline in Claudication Onset Time at Day 90

Subjects were asked to complete a standardized exercise treadmill test using a modified Gardner protocol. Subjects walked on the treadmill until they were physically unable to walk further either as a result of their peripheral artery disease (PAD) symptoms or other non-PAD symptoms. The time during the conduct of the exercise treadmill test at which the subject first reported claudication symptoms is referred to as the claudication onset time (COT) and reported in minutes/seconds. The exercise treadmill test was conducted at Screening, Baseline, Day 90, and Day 180 visits. The log transformation is used to make highly skewed distributions less skewed. (NCT00822172)
Timeframe: Baseline, Day 90

InterventionLog Minutes (Mean)
Cilostazol + L-Carnitine1.001
Cilostazol + Placebo0.815

Change From Baseline in Peak Walking Time (PWT) at Day 180

Subjects were asked to complete a standardized exercise treadmill test using a modified Gardner protocol. Subjects walked on the treadmill until they were physically unable to walk further either as a result of their peripheral artery disease (PAD) symptoms or other non-PAD symptoms. This maximum time walked is referred to as the peak walking time (PWT) and reported in minutes/seconds. The exercise treadmill test was conducted at Screening, Baseline, Day 90, and Day 180 visits. The log transformation is used to make highly skewed distributions less skewed. (NCT00822172)
Timeframe: Baseline, Day 180

InterventionLog Minutes (Mean)
Cilostazol + L-Carnitine0.241
Cilostazol + Placebo0.134

Change From Baseline in Peak Walking Time at Day 180

Subjects were asked to complete a standardized exercise treadmill test using a modified Gardner protocol. Subjects walked on the treadmill until they were physically unable to walk further either as a result of their peripheral artery disease (PAD) symptoms or other non-PAD symptoms. This maximum time walked is referred to as the peak walking time (PWT) and reported in minutes/seconds. The exercise treadmill test was conducted at Screening, Baseline, Day 90, and Day 180 visits. The log transformation is used to make highly skewed distributions less skewed. (NCT00822172)
Timeframe: Baseline, Day 180

InterventionLog Minutes (Mean)
Cilostazol + L-Carnitine0.267
Cilostazol + Placebo0.145

Change From Baseline in Peak Walking Time at Day 90

Subjects were asked to complete a standardized exercise treadmill test using a modified Gardner protocol. Subjects walked on the treadmill until they were physically unable to walk further either as a result of their peripheral artery disease (PAD) symptoms or other non-PAD symptoms. This maximum time walked is referred to as the peak walking time (PWT) and reported in minutes/seconds. The exercise treadmill test was conducted at Screening, Baseline, Day 90, and Day 180 visits. The log transformation is used to make highly skewed distributions less skewed. (NCT00822172)
Timeframe: Baseline, Day 90

InterventionLog Minutes (Mean)
Cilostazol + L-Carnitine0.166
Cilostazol + Placebo0.139

Change From Baseline in Walking Impairment Questionnaire for Walking Distance at Day 180

Subjects completed the Walking Impairment Questionnaire (WIQ) whereby they were asked about their maximal walking distance before having to rest as a result of claudication symptoms associated with their peripheral artery disease (PAD). The WIQ was administered at the Baseline, Day 90, and Day 180 visits. On the WIQ subjects were asked a series of questions related to their degree of physical difficulty that best described how hard it was for the subject to walk on level ground without stopping to rest. The questions began by asking the degree of difficulty walking around indoors, then 50 feet, 150 feet, 300 feet, 600 feet, 900 feet, and lastly 1500 feet. The responses range from None (best outcome) to Slight, then Some, then Much, then lastly Unable (worst outcome). The walking distance score was calculated from the 7 questions in the section by way of a weighted sum. A score of 100 indicated no walking impairment. A score of 0 corresponded to the highest degree of walking impairment (NCT00822172)
Timeframe: Baseline, Day 180

Interventionscore on a scale (Mean)
Cilostazol + L-Carnitine13.20
Cilostazol + Placebo6.57

Change From Baseline in Walking Impairment Questionnaire for Walking Distance at Day 90

Subjects completed the Walking Impairment Questionnaire (WIQ) whereby they were asked about their maximal walking distance before having to rest as a result of claudication symptoms associated with their peripheral artery disease (PAD). The WIQ was administered at the Baseline, Day 90, and Day 180 visits. On the WIQ subjects were asked a series of questions related to their degree of physical difficulty that best described how hard it was for the subject to walk on level ground without stopping to rest. The questions began by asking the degree of difficulty walking around indoors, then 50 feet, 150 feet, 300 feet, 600 feet, 900 feet, and lastly 1500 feet. The responses range from None (best outcome) to Slight, then Some, then Much, then lastly Unable (worst outcome). The walking distance score was calculated from the 7 questions in the section by way of a weighted sum. A score of 100 indicated no walking impairment. A score of 0 corresponded to the highest degree of walking impairment (NCT00822172)
Timeframe: Baseline, Day 90

Interventionscore on a scale (Mean)
Cilostazol + L-Carnitine12.98
Cilostazol + Placebo10.01

Trials

1 trial available for pyruvic acid and Intermittent Claudication

ArticleYear
Increases in walking distance in patients with peripheral vascular disease treated with L-carnitine: a double-blind, cross-over study.
    Circulation, 1988, Volume: 77, Issue:4

    Topics: Carnitine; Clinical Trials as Topic; Double-Blind Method; Exercise Test; Female; Humans; Intermitten

1988

Other Studies

8 other studies available for pyruvic acid and Intermittent Claudication

ArticleYear
Effect of treadmill exercise on blood gases and acid-base balance in patients with intermittent claudication.
    Zeitschrift fur Kardiologie, 1983, Volume: 72, Issue:9

    Topics: Acid-Base Equilibrium; Adult; Aged; Bicarbonates; Carbon Dioxide; Exercise Test; Female; Hemodynamic

1983
Human skeletal muscle metabolism and morphology after temporary incomplete ischaemia.
    European journal of clinical investigation, 1982, Volume: 12, Issue:1

    Topics: Adenosine Diphosphate; Adenosine Monophosphate; Adenosine Triphosphate; Adult; Aged; Constriction; F

1982
[The walking-through phenomenon in arterial occlusive disease].
    VASA. Zeitschrift fur Gefasskrankheiten, 1995, Volume: 24, Issue:3

    Topics: Adult; Aged; Arterial Occlusive Diseases; Exercise Test; Exercise Therapy; Glycolysis; Humans; Inter

1995
Skeletal muscle mitochondrial ATP production rate and walking performance in peripheral arterial disease.
    Clinical physiology and functional imaging, 2002, Volume: 22, Issue:3

    Topics: Adenosine Triphosphate; Aged; Exercise Therapy; Female; Humans; Intermittent Claudication; Malates;

2002
[Biochemical modifications in stress ischemia of the calf muscles].
    VASA. Supplementum, 1991, Volume: 32

    Topics: Alanine; Ammonia; Energy Metabolism; Humans; Hypoxanthine; Hypoxanthines; Intermittent Claudication;

1991
Lactate and pyruvate kinetics after treadmill exercise in patients with intermittent claudication.
    VASA. Zeitschrift fur Gefasskrankheiten, 1989, Volume: 18, Issue:3

    Topics: Adult; Aged; Exercise Test; Humans; Intermittent Claudication; Kinetics; Lactates; Lactic Acid; Male

1989
[Interval exercise in arterial occlusive disease].
    VASA. Zeitschrift fur Gefasskrankheiten, 1989, Volume: 18, Issue:3

    Topics: Energy Metabolism; Exercise Test; Humans; Intermittent Claudication; Lactates; Lactic Acid; Male; Mi

1989
Laboratory evaluation of patients with vascular occlusive disease.
    Journal of vascular surgery, 1985, Volume: 2, Issue:6

    Topics: Adenosine Triphosphate; Adult; Aged; Blood Pressure; Glycogen; Humans; Intermittent Claudication; Is

1985