- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03435835
Heat Therapy to Reduce Pain and Improve Walking Tolerance
Heat Therapy to Reduce Leg Pain and Improve Walking Tolerance in Patients With Symptomatic Peripheral Artery Disease
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Heat therapy (HT) is an emerging non-invasive approach that has been shown to enhance vascular function of the leg in old individuals. The objective of this study is to establish evidence to support the validity of HT in improving walking tolerance on PAD patents.
Subjects will complete baseline assessments for eligibility, including medical history and ankle-brachial measurement. Eligible participants will be asked to report to the laboratory on 4 different occasions. The purpose of visits 1 and 2 The central hypothesis of this study, based on preliminary data, is that exposure to HT will enhance the oxygenation of calf muscles during exercise and as a result, the onset of pain will be delayed and walking performance will be enhanced. is to familiarize the participants with the treadmill walking test and assess the test-retest reliability of maximal walking time determination. On visits 3 and 4 participants will receive either heat treatment or a control treatment for 80 min prior to undergoing a symptom-limited incremental test on the treadmill.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Indiana
-
Indianapolis, Indiana, United States, 46202
- Indiana University
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- ADULT
- OLDER_ADULT
- CHILD
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Men and women with stable symptomatic leg claudication for 6 months or longer.
- Ankle brachial index < 0.9
Exclusion Criteria:
- Heart Failure
- COPD
- Critical limb ischemia
- Prior amputation
- Exercise-limiting co-morbidity
- Recent infrainguinal revascularization or planned during study period
- Plans to change medical therapy during duration of the study
- Active cancer
- Chronic kidney disease
- HIV positive, active HBV or HCV disease
- Presence of any unsuitable comorbid clinical condition in the opinion of the PI
- Peripheral neuropathy, numbness or paresthesia in the legs
- Morbid obesity, BMI > 36 or unable to fit in water-circulating pants
- Open wounds or ulcers on the extremity
- Unable to walk on the treadmill
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: RANDOMIZED
- Interventional Model: CROSSOVER
- Masking: DOUBLE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: Sham, then heat therapy
Participants were fitted with liquid-circulating trousers.
In the sham-treatment session, water at 33℃ was circulated through the trousers for 90 min using a water pump (HTP-1500, Adroit Medical, Louden, Tennessee, United States).
At least 72 hrs after completion of the sham treatment session, participants returned to the laboratory and received the heat therapy (HT) treatment.
In the HT session, water at 43℃ was circulated through the tube-lined trousers using a heated bath circulator (HT; Aqua Relief Systems, Akron, Ohio, United States) with the goal of increasing leg skin temperature to 37-38ºC.
|
Water at 33ºC was circulated through water-circulating trousers.
Water at 42-43ºC was circulated through the water-circulating trousers.
|
EXPERIMENTAL: Heat therapy, then sham
Participants were fitted with liquid-circulating trousers.
In the HT session, water at 43℃ was circulated through the tube-lined trousers using a heated bath circulator (HT; Aqua Relief Systems, Akron, Ohio, United States) with the goal of increasing leg skin temperature to 37-38ºC.
At least 72 hrs after completion of the sham treatment session, participants returned to the laboratory and received the sham treatment.
In the sham-treatment session, water at 33℃ was circulated through the trousers for 90 min using a water pump (HTP-1500, Adroit Medical, Louden, Tennessee, United States).
|
Water at 33ºC was circulated through water-circulating trousers.
Water at 42-43ºC was circulated through the water-circulating trousers.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Peak Walking Time
Time Frame: Immediately after exposure to a single session of heat therapy or sham treatment, up to ~20 min
|
Exercise testing was performed in a motorized treadmill (Pro 27, Woodway, St. Paul, Minnesota, United States) following the Gardner-Skinner protocol, which consists of walking at a constant speed (2 mph) with a 2%-grade increase every 2 min (Gardner et al., 1991).
Participants received standardized instructions and were asked to indicate when they first began to feel leg pain with a "thumbs up" signal (defined as COT), and then give a "thumbs down" signal when they could no longer continue with the test (defined as PWT).
|
Immediately after exposure to a single session of heat therapy or sham treatment, up to ~20 min
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Claudication Onset Time
Time Frame: The exercise test was performed immediately after exposure to a single session of either heat therapy or sham, up to ~20 min
|
Exercise testing was performed in a motorized treadmill (Pro 27, Woodway, St. Paul, Minnesota, United States) following the Gardner-Skinner protocol, which consists of walking at a constant speed (2 mph) with a 2%-grade increase every 2 min (Gardner et al., 1991).
Participants received standardized instructions and were asked to indicate when they first began to feel leg pain with a "thumbs up" signal (defined as COT), and then give a "thumbs down" signal when they could no longer continue with the test (defined as PWT).
|
The exercise test was performed immediately after exposure to a single session of either heat therapy or sham, up to ~20 min
|
Peak Systolic Blood Pressure
Time Frame: The exercise test was performed immediately after exposure to a single session of either heat therapy or sham, up to ~20 min
|
Blood pressure was measured in the left arm using a stethoscope and sphygmomanometer during exercise.
|
The exercise test was performed immediately after exposure to a single session of either heat therapy or sham, up to ~20 min
|
Peak Diastolic Blood Pressure
Time Frame: The exercise test was performed immediately after exposure to a single session of either heat therapy or sham, up to ~20 min
|
Blood pressure was measured in the left arm using a stethoscope and sphygmomanometer prior and during exercise
|
The exercise test was performed immediately after exposure to a single session of either heat therapy or sham, up to ~20 min
|
Peak Calf Tissue Saturation Index
Time Frame: The exercise test was performed immediately after exposure to a single session of either heat therapy or sham, up to ~20 min
|
The tissue saturation index (TSI%) of the most symptomatic leg was assessed with a commercially available NIRS system (Portamon, Artinis Medical Systems, The Netherlands).
|
The exercise test was performed immediately after exposure to a single session of either heat therapy or sham, up to ~20 min
|
Post-exercise Plasma Endothelin-1 Concentration
Time Frame: The exercise test was performed immediately after exposure to a single session of either heat therapy or sham, up to ~20 min. Ten minutes following completion of the incremental treadmill test, blood samples were obtained for the assessment of serum ET-1
|
Commercially available enzyme-linked immunosorbent assay kits were used to measure the plasma concentrations of ET-1 (DET100, Endothelin-1 Quantikine ELISA Kit, R&D Systems, Minneapolis, MN, United States)
|
The exercise test was performed immediately after exposure to a single session of either heat therapy or sham, up to ~20 min. Ten minutes following completion of the incremental treadmill test, blood samples were obtained for the assessment of serum ET-1
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Raghu L Motaganahalli, MD, Indiana University
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ACTUAL)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 1708785351
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Peripheral Arterial Disease
-
University of NebraskaNot yet recruitingPeripheral Arterial Disease | Peripheral Vascular Diseases | Peripheral Arterial Occlusive Disease | Peripheral Artery DiseaseUnited States
-
CID S.p.A.Meditrial Europe Ltd.Not yet recruitingPeripheral Arterial Occlusive Disease | Peripheral Artery DiseaseItaly
-
Marissa JarosinskiRecruitingPeripheral Arterial Occlusive Disease | Peripheral Vascular Disease | Peripheral Artery Disease | Clopidogrel, Poor Metabolism of | Artery DiseaseUnited States
-
Stanford UniversityTerminatedPAD - Peripheral Arterial Disease | PVD- Peripheral Vascular DiseaseUnited States
-
Vascuros Medical Pte LtdNovella ClinicalUnknownPeripheral Arterial Occlusive Disease | Peripheral Vascular Disease | Peripheral Artery DiseaseSingapore, Belgium, Germany
-
Western Vascular Institute, IrelandRecruitingPeripheral Arterial Occlusive DiseaseIreland
-
Jena University HospitalAngioDroid s.r.l., Bologna (Italy)CompletedPeripheral Arterial Occlusive DiseaseGermany
-
Seoul National University HospitalAstellas Pharma Korea, Inc.CompletedPeripheral Arterial Occlusive DiseaseKorea, Republic of
-
Heidelberg UniversityTerminatedPeripheral Arterial Occlusive DiseaseGermany
-
Johann Wolfgang Goethe University HospitalSuspendedPeripheral Arterial Occlusive DiseaseGermany
Clinical Trials on Control/Sham Treatment
-
Procter and GambleCompleted
-
Singapore General HospitalDuke-NUS Graduate Medical SchoolUnknownCardiovascular Diseases | Hypertension | Chronic Kidney DiseasesSingapore
-
European Institute for Evidence Based Osteopathic...CompletedHeart Rate Variability | Healthy SubjectItaly
-
University of North Texas Health Science CenterNational Institute on Aging (NIA); University of Texas Southwestern Medical...Recruiting
-
University of MinnesotaCompleted
-
Loyola UniversityInterstitial Cystitis Association (ICA)CompletedInterstitial Cystitis | Painful Bladder SyndromeUnited States
-
Solace Therapeutics, Inc.Completed
-
University of Sao PauloCompleted
-
Solace Therapeutics, Inc.CompletedStress Urinary IncontinenceUnited States
-
Grzegorz FojeckiUniversity of Southern Denmark; Region of Southern DenmarkCompletedErectile DysfunctionDenmark