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Intermittent ClaudicationSUNFITNCT02341716

Hospital- and Home-based Supervised Exercise Versus UNsupervised Walk Advice For Patients With InTermittent Claudication

A study testing WA, SET and HET in people with Intermittent Claudication, run by Lennart Jivegård at 2 sites in Sweden.

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 The sponsor has not verified this record for over two years, so it may be out of date.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

The purpose of this randomized clinical trial is to determine and compare the clinical and cost effectiveness of three methods for exercise therapy as treatment for patients with intermittent claudication. Read more about this study

Who is it for?
Any age
Conditions the study is for
Intermittent Claudication
What is being tested?
WA, SET and HET
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
165 participants
Where
2 sitesSweden
Study dates
Sep 2014to Jun 2022
Phase
Interventional
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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Intermittent claudication in one or both legs with a typical history and ankle-brachial-index (ABI) 0.90 or less and/or 30% or more post-exercise reduction of ABI.
  • Symptom duration > 6 months.
  • Intermittent claudication is the walk limiting condition.

Who cannot join

  • Invasive treatment for intermittent claudication performed within three months
  • Invasive treatment for intermittent claudication considered necessary within 12 months
  • Inability to understand Swedish, answer questionnaires or perform walk test

Trial locations and contacts

2 sites in 1 country.

Sweden2 sites
  • Södra Älvsborgs Hospital

    Borås, Västra Götaland County, 50182

  • Sahlgrenska University Hospital

    Gothenburg, Västra Götaland County, 41345

Other trials in Sweden

About this study

Official title: Hospital- or Home-based Supervised Exercise Therapy or Unsupervised Walk Advice for Patients With Intermittent Claudication

The purpose of this randomized clinical trial is to determine and compare the clinical and cost effectiveness of three methods for exercise therapy as treatment for patients with intermittent claudication. The methods tested are a hospital-based (SET) and a home-based (HET) supervised exercise program and unsupervised walk advice (WA) and all patients are followed for 12 months. Unsupervised WA consists of advice of at least 30 minutes walking with Nordic Poles (NP) at least three times per week and this basic treatment, including best medical treatment, is used in all three treatment groups. In addition to this basic treatment, the SET group patients during the first six months participate in group-based exercise therapy in the hospital for 50 minutes three times weekly, supervised by a physiotherapist. The HET group patients perform the same exercise in their home 50 minutes three times weekly during six months receiving feedback from a physiotherapist by a phone call every 14th day. The SET and HET group patients are recommended to continue the 50 minutes three times weekly exercise therapy in their homes without supervision during the last six months. Primary outcome is change from baseline to 12 months in walking distance during six minutes in a hospital corridor (6MWT) and co-primary outcome is change from baseline to 12 months in health-related quality of life (HRQoL) using the SF36 questionnaire. Secondary outcomes include fulfillment of patient-specified goals with treatment (PSFS), change in health-related quality-of-life (HRQoL) with a disease-specific instrument (VascuQoL), walking impairment as measured by the Walking Impairment Questionnaire, physical activity (accelerometer) and compliance with physical exercise therapy (patient diary).

Read the detailed description

Background Intermittent claudication is usually caused by atherosclerotic stenoses and/or occlusions in the arteries to the legs and affects 7% of the Swedish population aged 60 years or more. Evidence-based treatment is best medical treatment (BMT) and exercise therapy. Best medical treatment includes treatment of risk factors for arteriosclerosis. Regarding exercise therapy, in-hospital supervised exercise therapy (SET) on a graded treadmill is known to improve walking performance as measured on the graded treadmill after three and six months. There is only scarce data on long-term results and very limited data regarding improvement of health related quality of life (HRQoL) by SET. In most countries, walk advice (WA) is routine clinical practice and resources for SET are often lacking. Invasive treatment (surgical or endovascular) is rarely required for patients with intermittent claudication.

New techniques (GPS and accelerometers) enable measurement of physical activity and training in home environment. The use of such techniques could facilitate home-based (HET) instead of hospital-based supervised exercise (SET) therapy by providing the caregiver data that could be used for feedback to the patient in order to obtain optimal patient benefit by the exercise therapy. This raises hope that results of and the long-term compliance to exercise therapy may improve.

Aim: in patients with intermittent claudication (IC) who do not require invasive treatment evaluate walking performance, HRQoL, fulfillment of patient-defined goals with treatment, walking impairment, long-term compliance to exercise therapy, physical activity and cost-effectiveness for different exercise therapy modalities in order to define the most effective and cost effective treatment.

One hundred and sixty-five IC patients requesting treatment for their IC symptoms in the vascular surgical departments of Sahlgrenska University Hospital and Södra Älvsborg Hospital, Sweden and in whom invasive treatment is not considered necessary are randomized (computerized adaptive stratified randomization) to

  1. WA with Nordic Poles (NP) + best medical treatment (BMT), or
  2. WA with NP + BMT + SET, or
  3. WA with NP + BMT + HET

All randomized patients are recommended outdoor walking with NP at least 30 minutes at least three times per week. The SET group in addition receives in-hospital muscle exercise therapy in a group supervised by a physiotherapist three times weekly during six months. The HET group patients perform the same muscle exercise therapy at home with feedback every 14th day from a physiotherapist during six months. After the six months of supervised exercise therapy, the SET and HET patients are recommended to continue the same muscle exercise therapy at home, but without feedback, between seven and 12 months. The patients are followed by a blinded observer (physiotherapist unaware of the patient´s randomized group) at three, six and 12 months.

Primary outcome: change from baseline to 12 months in walking distance during six-minutes-walk-test (6MWT) and co-primary outcome: change from baseline to 12 months in health-related quality of life (SF36).

Secondary outcomes: walking impairment as measured by the Walking Impairment Questionnaire (WIQ), fulfillment of patient-defined goals (Patient-Specific-Functional Scale), physical activity (accelerometer), compliance to exercise therapy (patient diary), disease-specific HRQoL (VascuQol) and cost-effectiveness. Also change over time (baseline to three, baseline to six and six to 12 months) is studied.

It is important to determine whether the supervised exercise therapy modalities (SET and HET) have equivalent results and are better than WA with NP and BMT alone. The trial is designed to answer the question whether HET is not significantly less clinically effective as SET and whether SET is more clinically effective than WA with NP and BMT. The study started in September 2014, inclusion is expected to stop in September 2016 and end of follow-up is September 2017.

Being tested
WA, SET, HET
Keywords
intermittent claudication, exercise therapy, physiotherapy
Medical subject headings
Intermittent Claudication

What participants receive

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

  • WAProcedure or surgery

    Walk advice with Nordic Poles and best medical treatment

  • SETProcedure or surgery

    Walk advice with Nordic Poles, best medical treatment and hospital-based supervised exercise therapy

  • HETProcedure or surgery

    Walk advice with Nordic Poles, best medical treatment and home-based supervised exercise therapy

Study groups in NCT02341716
Study groupRoleWhat they receive
Walk adviceActive comparatorAll WA patients receive best medical treatment (BMT) including control of risk factors for arteriosclerosis, simvastatin 40 mg daily, aspirin 75 mg daily and are recommended outdoor walking with Nordic Poles at least 30 minutes at least three times per week. The WA patients are unsupervised during the study period and are followed by a blinded observer at baseline, three, six and 12 months.
Receives: Procedure: WA
Hospital-based supervised exerciseActive comparatorAll SET patients receive the same basic treatment as WA patients: best medical treatment (BMT) including control of risk factors for arteriosclerosis, simvastatin 40 mg daily, aspirin 75 mg daily and recommendation of outdoor walking with Nordic Poles at least 30 minutes at least three times per week. The SET group in addition receives three times weekly during six months in-hospital muscle exercise therapy in a group supervised by a physiotherapist. After the six months of supervised exercise therapy, the SET patients are recommended to continue the same muscle exercise therapy at home, but without feedback, between seven and 12 months.
Receives: Procedure: SET
Home-based supervised exerciseActive comparatorAll HET patients receive the same basic treatment as WA patients: best medical treatment (BMT) including control of risk factors for arteriosclerosis, simvastatin 40 mg daily, aspirin 75 mg daily and recommendation of outdoor walking with Nordic Poles at least 30 minutes at least three times per week. The HET group patients in addition perform the same muscle exercise therapy three times weekly during six months as the SET patients, but in their homes, and are supervised and given feedback by phone calls every 14th day by a physiotherapist. After six months of supervised exercise therapy, the HET patients are recommended to continue the same muscle exercise therapy, but without feedback, between seven and 12 months.
Receives: Procedure: HET

What is being measured

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

  1. Six-minutes-walk-test walking distance (6MWD)

    Walk test in a hospital corridor where the patient is encouraged to walk as far as possible between two cones, 30 meters apart, during six minutes

    Measured: Baseline and 12 months, change

  2. Generic health-related quality of life (SF36)

    Short-form 36 is an extensively used and validated generic health-related quality of life instrument

    Measured: Baseline and 12 months, change

Secondary outcomes (28)
  1. Disease-specific health-related quality of life (VascuQoL)

    VascuQoL is a frequently used disease-specific (PAD) HRQoL instrument, validated in Swedish.

    Measured: Baseline and 12 months, change

  2. Walking impairment (Walking Impairment Questionnaire, WIQ)

    The WIQ questionnaire is a frequently used questionnaire to quantify walking impairment and is validated in Swedish

    Measured: Baseline and 12 months, change

  3. Physical activity

    Physical activity is assessed using an accelerometer (ActivePAL) carried by the patient during one week adhered to the thigh and covered with a plastic foil to allow a shower. The ActivePAL gives continuous data (e.g. standing, sitting, walking) regarding physical activity and is validated for use in patients with intermittent claudication

    Measured: Baseline and 12 months, change

  4. Compliance to exercise therapy

    Compliance to exercise therapy is assessed by a patient diary in which the patients register all exercise activities (SET and HET groups only)

    Measured: 12 months

  5. HbA1c and serum lipids

    Standard blood tests

    Measured: Baseline and 12 months, change

  6. Ankle-brachial-index (ABI)

    The highest pressure at the ipsilateral ankle level divided by the simultaneously measured arm blood pressure

    Measured: Baseline and 12 months, change

  7. Patient-specified goals with treatment (PSFS)

    At baseline, the patient specifies one to five goals with the treatment for intermittent claudication and fulfillment of these goals is quantified by the patient during follow-up

    Measured: 12 months

  8. Cardiovascular events

    Cardiovascular adverse events, minor and major, during the course of the study

    Measured: 12 months

  9. Muscular-skeletal events

    Muscular-skeletal events, minor and major, during the course of the study

    Measured: 12 months

  10. Vascular surgical revascularization

    Invasive vascular procedure in the lower limb(s) during the course of the study

    Measured: 12 months

  11. Six-minutes-walk-test walking distance (6MWD)

    Walk test in a hospital corridor where the patient is encouraged to walk as far as possible between two cones, 30 meters apart, during six minutes

    Measured: Baseline and three months, change

  12. Six-minutes-walk-test walking distance (6MWD)

    Walk test in a hospital corridor where the patient is encouraged to walk as far as possible between two cones, 30 meters apart, during six minutes

    Measured: Baseline and six months, change

  13. Six-minutes-walk-test walking distance (6MWD)

    Walk test in a hospital corridor where the patient is encouraged to walk as far as possible between two cones, 30 meters apart, during six minutes

    Measured: Six and 12 months, change

  14. Generic health-related quality of life (SF36)

    Short-form 36 is an extensively used and validated generic health-related quality of life instrument

    Measured: Baseline and three months, change

  15. Generic health-related quality of life (SF36)

    Short-form 36 is an extensively used and validated generic health-related quality of life instrument

    Measured: Baseline and six months, change

  16. Generic health-related quality of life (SF36)

    Short-form 36 is an extensively used and validated generic health-related quality of life instrument

    Measured: Six and 12 months, change

  17. Disease-specific health-related quality of life (VascuQoL)

    VascuQoL is a frequently used disease-specific (PAD) HRQoL instrument, validated in Swedish.

    Measured: Baseline and three months, change

  18. Disease-specific health-related quality of life (VascuQoL)

    VascuQoL is a frequently used disease-specific (PAD) HRQoL instrument, validated in Swedish.

    Measured: Baseline and six months, change

  19. Disease-specific health-related quality of life (VascuQoL)

    VascuQoL is a frequently used disease-specific (PAD) HRQoL instrument, validated in Swedish.

    Measured: Six and 12 months, change

  20. Walking impairment (Walking Impairment Questionnaire, WIQ)

    The WIQ questionnaire is a frequently used questionnaire to quantify walking impairment and is validated in Swedish

    Measured: Baseline and three months, change

  21. Walking impairment (Walking Impairment Questionnaire, WIQ)

    The WIQ questionnaire is a frequently used questionnaire to quantify walking impairment and is validated in Swedish

    Measured: Baseline and six months, change

  22. Walking impairment (Walking Impairment Questionnaire, WIQ)

    The WIQ questionnaire is a frequently used questionnaire to quantify walking impairment and is validated in Swedish

    Measured: Six and 12 months, change

  23. Physical activity

    Physical activity is assessed using an accelerometer (ActivePAL) carried by the patient during one week adhered to the thigh and covered with a plastic foil to allow a shower. The ActivePAL gives continuous data (e.g. standing, sitting, walking) regarding physical activity and is validated for use in patients with intermittent claudication

    Measured: Baseline and three months, change

  24. Physical activity

    Physical activity is assessed using an accelerometer (ActivePAL) carried by the patient during one week adhered to the thigh and covered with a plastic foil to allow a shower. The ActivePAL gives continuous data (e.g. standing, sitting, walking) regarding physical activity and is validated for use in patients with intermittent claudication

    Measured: Baseline and six months, change

  25. Physical activity

    Physical activity is assessed using an accelerometer (ActivePAL) carried by the patient during one week adhered to the thigh and covered with a plastic foil to allow a shower. The ActivePAL gives continuous data (e.g. standing, sitting, walking) regarding physical activity and is validated for use in patients with intermittent claudication

    Measured: Six and 12 months, change

  26. Compliance to exercise therapy

    Compliance to exercise therapy is assessed by a patient diary in which the patients register all exercise activities (SET and HET groups only)

    Measured: Three months

  27. Compliance to exercise therapy

    Compliance to exercise therapy is assessed by a patient diary in which the patients register all exercise activities (SET and HET groups only)

    Measured: Six months

  28. Patient-specified goals with treatment (PSFS)

    At baseline, the patient specifies one to five goals with the treatment for intermittent claudication and fulfillment of these goals is quantified by the patient during follow-up

    Measured: Six months

Timeline

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

  1. First posted19 Jan 2015 (estimated)
  2. Study startSep 2014
  3. Primary completionMar 2021
  4. Study completionJun 2022 (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 N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
165 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02341716
Sponsor's protocol ID
SahlgrenskaUH
Acronym
SUNFIT
Status last verified
May 2022
First submitted
12 Jan 2015
Last updated
6 May 2022
Results posted
No
Data monitoring committee
No

Publications

  • Sandberg A, Back M, Cider A, Jivegard L, Sigvant B, Nordanstig J. Impact of walk advice alone or in combination with supervised or home-based structured exercise on patient-reported physical function and generic and disease-specific health related quality of life in patients with intermittent claudication, a secondary analysis in a randomized clinical trial. Health Qual Life Outcomes. 2023 Oct 23;21(1):114. doi: 10.1186/s12955-023-02198-8.

    PubMed 37872617
  • Sandberg A, Nordanstig J, Cider A, Jivegard L, Hagstromer M, Back M. The Impact of Nordic Pole Walk Advice Alone or in Combination With Exercise Strategies on Daily Physical Activity in Patients With Intermittent Claudication: A Randomized Clinical Trial. Phys Ther. 2023 Nov 4;103(11):pzad086. doi: 10.1093/ptj/pzad086.

    PubMed 37459237
  • Sandberg A, Back M, Cider A, Jivegard L, Sigvant B, Wittboldt S, Nordanstig J. Effectiveness of supervised exercise, home-based exercise, or walk advice strategies on walking performance and muscle endurance in patients with intermittent claudication (SUNFIT trial): a randomized clinical trial. Eur J Cardiovasc Nurs. 2023 May 25;22(4):400-411. doi: 10.1093/eurjcn/zvac070.

    PubMed 35917174
  • Sandberg A, Cider A, Jivegard L, Nordanstig J, Wittboldt S, Back M. Test-retest reliability, agreement, and minimal detectable change in the 6-minute walk test in patients with intermittent claudication. J Vasc Surg. 2020 Jan;71(1):197-203. doi: 10.1016/j.jvs.2019.02.056. Epub 2019 May 27.

    PubMed 31147129

Questions about this trial

What is this clinical trial studying?

A study testing WA, SET and HET in people with Intermittent Claudication, run by Lennart Jivegård at 2 sites in Sweden.

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 3 inclusion and 3 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 6 May 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Sweden. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

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?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Six-minutes-walk-test walking distance (6MWD) (time frame: Baseline and 12 months, change). The study lists 2 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 NCT02341716, which also lists 4 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 6 May 2022.

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