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Graft-first Versus Fistula-first in Older Patients With End-stage Kidney Disease

A Randomized Pilot Study Comparing Graft-first to Fistula-first Strategies in Older Patients With Incident End-stage Kidney Disease

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03545113
Acronym
GEMSSTAR
Enrollment
44
Registered
2018-06-04
Start date
2018-09-04
Completion date
2021-02-22
Last updated
2022-11-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Kidney Diseases

Keywords

graft, fistula, hemodialysis, Vascular access

Brief summary

Many older adults require hemodialysis for advanced chronic kidney disease, but it is not clear which permanent vascular access method (fistula or graft) is best with respect to access effectiveness and patient satisfaction. In this pilot study, the study team will test the hypothesis that older adults undergoing graft access placement will more effectively transition from catheter-based to arteriovenous access-based hemodialysis; have fewer following vascular access procedures; have better upper extremity function; have better self-sufficiency with daily activities; and better health-related quality of life compared to those who undergo arteriovenous fistula access placement. The study will establish feasibility of randomizing older adults to the two types of arteriovenous access surgeries; evaluate relationships between measurements of pre-operative physical function and vascular access development; compare vascular access outcomes between the two groups; and gather longitudinal assessments of upper extremity muscle strength, performance of activities of daily living, and patients' reports of satisfaction with their vascular access and quality of life.

Detailed description

Each year, more than 600,000 people in the United States receive life-saving hemodialysis (HD) treatments for end-stage kidney disease (ESKD), a third of whom are older adults.Timely placement of an arteriovenous (AV) vascular access (native AV fistula \[AVF\] or prosthetic AV graft \[AVG\]) is necessary to avoid (or limit) the use of tunneled central venous catheters (TCVC) for HD. 'Fistula First Catheter Last' national guidelines require placement of AVF as the AV access of first choice in all patients to achieve better patient survival. However, the benefits of AVF over AVG are least certain in older adults, as age-related biological changes independently modulate patient outcomes. Nationally representative cohort studies of older adults with incident ESKD have shown similar patient survival between those whose first AV access placed or used was a fistula or a graft.Compared with grafts, fistulas fail more often and necessitate longer times and more subsequent procedures to aid development, exposing older patients to time-consuming procedures that may negatively affect upper extremity strength and erode their quality of life. The contribution of pre-operative physical function to AV access outcomes and the impact of AV access placement on upper extremity strength and self-sufficiency have not been evaluated. This pilot trial will involve older adults with pre-dialysis advanced chronic kidney disease (CKD) or incident ESKD using a TCVC for HD who had no prior AV access surgery and have upper extremity vasculature suitable for either fistula or graft placement. Participants will be randomized to receive an upper extremity AVF-first or AVG-first access for HD. The primary objective of this pilot trial is to prospectively evaluate patient and vascular access outcomes in a randomized intervention and in a patient population in whom fistula-first guidelines have been applied despite the lack of proven benefit and at the detriment of more access failures and procedures.

Interventions

PROCEDUREUpper arm arteriovenous graft surgery

Creation of arteriovenous graft vascular access for hemodialysis

PROCEDUREUpper arm arteriovenous fistula surgery

Creation of arteriovenous fistula vascular access for hemodialysis

Sponsors

National Institute on Aging (NIA)
CollaboratorNIH
Wake Forest University Health Sciences
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
65 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age ≥ 65 years * End-stage kidney disease (ESKD) on chronic hemodialysis (HD) * Tunneled central venous catheter (TCVC) is the sole vascular access used for HD * Advanced chronic kidney disease (CKD) expected to require HD initiation within 90 days of screening and deemed medically necessary by the treating nephrologist to proceed with arteriovenous (AV) access placement in preparation for HD initiation * Did not undergo AV access placement in the past * Medically eligible to receive AV fistula (AVF) or AV graft (AVG) placement as deemed by the treating nephrologist * Surgically eligible to receive either an AVF or an AVG as deemed by the vascular surgeon * HD is the intended long-term modality of treatment for ESKD * Planning to remain within Wake Forest provided health care for at least 12 months

Exclusion criteria

* Presence of an AVF or AVG * Previous attempt(s) for AV vascular access placement * Native vasculature not suitable for placement of AV access * Imminent transplant planned (within 6 months) * Anticipated life expectancy \<9 months

Design outcomes

Primary

MeasureTime frameDescription
Feasibility- Eligibility for Randomization12 monthsProportion of screened participants deemed eligible for randomization.
Feasibility- AV Graft or Fistula PlacementDay 90Proportion of participants who undergo AV graft or fistula placement within 90 days of randomization.
Feasibility- Consent to Randomization12 monthsProportion of eligible participants who consent to randomization.

Secondary

MeasureTime frameDescription
Health-related Quality of Life (HRQoL) - Mental Health (MCS-12) ScoresBaseline, Month 3, and Month 6The impact of the two types of vascular access on HRQoL will be assessed using the Kidney Disease Quality of Life Short Form (KDQOL-SF) version 1.3. which consists of a generic core (Short Form-36 \[SF-36\]) and an 11-item kidney disease-specific scale. Score range 0 to 100, with higher scores reflecting better quality of life.
Physical Activity Level3 and 6 monthsThe Rapid Assessment of Physical Activity (RAPA) instrument will be used to assess habitual physical activity. RAPA test score ≤ 3 corresponded to a sedentary lifestyle or a very light activity level; values ≥4 indicated a moderate to vigorous active lifestyle.
Physical Activity Level 4-meter GaitBaseline, month 3 and 6The 4MGS test is a simple screening test and a useful predictor of worsening daily activity in patients with chronic respiratory diseases.
Number of Subjects With No Pain at the AV Access SiteBaseline, 3 and 6 monthsThis will be determined by using the Verbal Descriptor Scale (VDS). The Verbal Descriptor Scale (VDS) is comprised of a series of descriptive phrases that refer to different levels of pain severity or intensity. Patients select the phrase that best describes their current pain - The verbal descriptor scale asks the patient to describe her or his pain using the following descriptors: no pain, mild pain, moderate pain, severe pain, or pain as bad as it could be.
Number of Subjects With Mild Pain at the AV Access SiteBaseline, Month 3 and Month 6This will be determined by using the Verbal Descriptor Scale (VDS). The Verbal Descriptor Scale (VDS) is comprised of a series of descriptive phrases that refer to different levels of pain severity or intensity. Patients select the phrase that best describes their current pain - The verbal descriptor scale asks the patient to describe her or his pain using the following descriptors: no pain, mild pain, moderate pain, severe pain, or pain as bad as it could be.
Number of Subject With Moderate Pain at the AV Access SiteBaseline, Month 3 and Month 6This will be determined by using the Verbal Descriptor Scale (VDS). The Verbal Descriptor Scale (VDS) is comprised of a series of descriptive phrases that refer to different levels of pain severity or intensity. Patients select the phrase that best describes their current pain - The verbal descriptor scale asks the patient to describe her or his pain using the following descriptors: no pain, mild pain, moderate pain, severe pain, or pain as bad as it could be.
Number of Subjects With Severe Pain at the AV Access SiteBaseline, Month 3 and Month 6This will be determined by using the Verbal Descriptor Scale (VDS). The Verbal Descriptor Scale (VDS) is comprised of a series of descriptive phrases that refer to different levels of pain severity or intensity. Patients select the phrase that best describes their current pain - The verbal descriptor scale asks the patient to describe her or his pain using the following descriptors: no pain, mild pain, moderate pain, severe pain, or pain as bad as it could be.
Upper Extremity Strength3 and 6 monthsThe grip-strength test will be performed twice on each hand for each assessment and the mean of the two results will be used for statistical analyses; a cut-off point \<16 kg in women and \<26 kg in men will define muscle weakness. Changes in grip strength will be compared between the two access interventions. Assessed with upper arm grip-strength test in each arm using a hand-held dynamometer.
Patient Satisfaction With Vascular Access3 and 6 monthsVascular access questionnaire will be used to assess differences in patient satisfaction with vascular access between the two access interventions using the short-form vascular access questionnaire (SF-VAQ). Mean scores obtained on SF-VAQ will be compared. SF-VAQ score range 4 -20 with higher scores indicating more satisfaction with the vascular access.
Performance on Activities of Daily Living (ADLs)Baseline and 6 monthsThe level of independence will be evaluated using ADLs. ADL score range 0-30, with higher scores denoting more dependence on other people to perform the usual daily activities.
Performance on Activities of Instrumental Daily Living ADLs (IADLs)Baseline, 3 and 6 monthsThe level of independence will be evaluated using IADLs instruments. ADL score range 0-31, with higher scores denoting more dependence on other people.
Depression3 and 6 monthsDepression scores assessed with the patient health questionnaire (PHQ-9) will be compared between the two vascular access arms. PHQ-9 score range 0-27. Depression Severity: 0-4 none, 5-9 mild, 10-14 moderate, 15-19 moderately severe, 20-27 severe.
Health-related Quality of Life (HRQoL) - Physical Health (PCS-12) Scores3 and 6 monthsThe impact of the two types of vascular access on HRQoL will be assessed using the Kidney Disease Quality of Life Short Form (KDQOL-SF) version 1.3. which consists of a generic core (Short Form-36 \[SF-36\]) and an 11-item kidney disease-specific scale. Score range 0 to 100, with higher scores reflecting better quality of life.

Other

MeasureTime frameDescription
AV Access Procedures - Number of Surgical Re-intervention on Index AV Access Procedures12 monthsNumber of AV access procedures per 100 patient-days between the two AV access strategies. This will include angioplasty, thrombectomy, stent placement, repeat surgery, and/or surgical superficialization.
AV Access Procedures - Number of Endovascular Interventions on Index AV Procedures Access12 monthsNumber of AV access procedures per 100 patient-days between the two AV access strategies. This will include angioplasty, thrombectomy, stent placement, repeat surgery, and/or surgical superficialization.
AV Access Successful Cannulation6 monthsWill compare the proportion of patients with successful AV access cannulation between the two AV access strategies. Successful cannulation is defined by the use of the AV access as the primary vascular access for hemodialysis (the fistula or graft access has been cannulated with two 16- or 15-gauge needles for ≥3 consecutive dialysis sessions and the dialysis central venous catheter was removed).
AV Access Primary Failure6 monthsRate of AV access primary failure between the two AV access strategies. Primary access failure is defined as permanent failure of the fistula or graft before hemodialysis suitability. This will include inadequate maturation, thrombosis, failure of first and subsequent cannulations, and/or other complications leading to nonfunctional fistula or graft.
AV Access Infection12 monthsIncidence rate of AV access infection between the two AV access strategies. This will include fistula or graft cellulitis, abscess, and/or bacteremia due to AV access infection.
AV Access Secondary Failure12 monthsRate of AV access secondary failure between the two AV access strategies. Secondary access failure is defined by permanent AV access failure after the fistula or graft met dialysis suitability criteria with subsequent abandonment.

Countries

United States

Participant flow

Participants by arm

ArmCount
Upper Extremity Arteriovenous Graft (AVG) - First
Participants randomized to receive an AVG will undergo surgery to have an AVG placed. Upper arm arteriovenous graft surgery: Creation of arteriovenous graft vascular access for hemodialysis
23
Upper Extremity Arteriovenous Fistula (AVF) - First
Participants randomized to receive an AVF will undergo surgery to have an AVF created. Upper arm arteriovenous fistula surgery: Creation of arteriovenous fistula vascular access for hemodialysis
21
Total44

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event20
Overall StudyDeath10
Overall StudyReceived different surgery10
Overall StudySurgery Cancelled10

Baseline characteristics

CharacteristicUpper Extremity Arteriovenous Fistula (AVF) - FirstTotalUpper Extremity Arteriovenous Graft (AVG) - First
Age, Continuous78.9 years76.3 years72.8 years
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
7 Participants14 Participants7 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
14 Participants30 Participants16 Participants
Sex: Female, Male
Female
6 Participants17 Participants11 Participants
Sex: Female, Male
Male
15 Participants27 Participants12 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
3 / 232 / 21
other
Total, other adverse events
1 / 230 / 21
serious
Total, serious adverse events
0 / 230 / 21

Outcome results

Primary

Feasibility- AV Graft or Fistula Placement

Proportion of participants who undergo AV graft or fistula placement within 90 days of randomization.

Time frame: Day 90

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Total GroupFeasibility- AV Graft or Fistula Placement18 Participants
Upper Extremity Arteriovenous Fistula (AVF) - FirstFeasibility- AV Graft or Fistula Placement21 Participants
Primary

Feasibility- Consent to Randomization

Proportion of eligible participants who consent to randomization.

Time frame: 12 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Total GroupFeasibility- Consent to Randomization44 Participants
Primary

Feasibility- Eligibility for Randomization

Proportion of screened participants deemed eligible for randomization.

Time frame: 12 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Total GroupFeasibility- Eligibility for Randomization54 Participants
Secondary

Depression

Depression scores assessed with the patient health questionnaire (PHQ-9) will be compared between the two vascular access arms. PHQ-9 score range 0-27. Depression Severity: 0-4 none, 5-9 mild, 10-14 moderate, 15-19 moderately severe, 20-27 severe.

Time frame: 3 and 6 months

Secondary

Health-related Quality of Life (HRQoL) - Mental Health (MCS-12) Scores

The impact of the two types of vascular access on HRQoL will be assessed using the Kidney Disease Quality of Life Short Form (KDQOL-SF) version 1.3. which consists of a generic core (Short Form-36 \[SF-36\]) and an 11-item kidney disease-specific scale. Score range 0 to 100, with higher scores reflecting better quality of life.

Time frame: Baseline, Month 3, and Month 6

ArmMeasureGroupValue (MEAN)Dispersion
Total GroupHealth-related Quality of Life (HRQoL) - Mental Health (MCS-12) ScoresMonth 354.38 score on a scaleStandard Deviation 13.26
Total GroupHealth-related Quality of Life (HRQoL) - Mental Health (MCS-12) ScoresMonth 653.79 score on a scaleStandard Deviation 17.31
Total GroupHealth-related Quality of Life (HRQoL) - Mental Health (MCS-12) ScoresBaseline53.38 score on a scaleStandard Deviation 8.05
Upper Extremity Arteriovenous Fistula (AVF) - FirstHealth-related Quality of Life (HRQoL) - Mental Health (MCS-12) ScoresMonth 346.27 score on a scaleStandard Deviation 5.66
Upper Extremity Arteriovenous Fistula (AVF) - FirstHealth-related Quality of Life (HRQoL) - Mental Health (MCS-12) ScoresMonth 658.2 score on a scaleStandard Deviation 5.91
Upper Extremity Arteriovenous Fistula (AVF) - FirstHealth-related Quality of Life (HRQoL) - Mental Health (MCS-12) ScoresBaseline51.46 score on a scaleStandard Deviation 11.37
Secondary

Health-related Quality of Life (HRQoL) - Physical Health (PCS-12) Scores

The impact of the two types of vascular access on HRQoL will be assessed using the Kidney Disease Quality of Life Short Form (KDQOL-SF) version 1.3. which consists of a generic core (Short Form-36 \[SF-36\]) and an 11-item kidney disease-specific scale. Score range 0 to 100, with higher scores reflecting better quality of life.

Time frame: 3 and 6 months

ArmMeasureGroupValue (MEAN)Dispersion
Total GroupHealth-related Quality of Life (HRQoL) - Physical Health (PCS-12) ScoresMonth 339.02 score on a scaleStandard Deviation 8.45
Total GroupHealth-related Quality of Life (HRQoL) - Physical Health (PCS-12) ScoresMonth 640.77 score on a scaleStandard Deviation 7.73
Total GroupHealth-related Quality of Life (HRQoL) - Physical Health (PCS-12) ScoresBaseline29.89 score on a scaleStandard Deviation 12.09
Upper Extremity Arteriovenous Fistula (AVF) - FirstHealth-related Quality of Life (HRQoL) - Physical Health (PCS-12) ScoresMonth 339.44 score on a scaleStandard Deviation 5.23
Upper Extremity Arteriovenous Fistula (AVF) - FirstHealth-related Quality of Life (HRQoL) - Physical Health (PCS-12) ScoresMonth 636.12 score on a scaleStandard Deviation 5.55
Upper Extremity Arteriovenous Fistula (AVF) - FirstHealth-related Quality of Life (HRQoL) - Physical Health (PCS-12) ScoresBaseline36.75 score on a scaleStandard Deviation 10.7
Secondary

Number of Subjects With Mild Pain at the AV Access Site

This will be determined by using the Verbal Descriptor Scale (VDS). The Verbal Descriptor Scale (VDS) is comprised of a series of descriptive phrases that refer to different levels of pain severity or intensity. Patients select the phrase that best describes their current pain - The verbal descriptor scale asks the patient to describe her or his pain using the following descriptors: no pain, mild pain, moderate pain, severe pain, or pain as bad as it could be.

Time frame: Baseline, Month 3 and Month 6

Population: Patient expired, some participants also declined (at times) answering questions, and some visits were not performed due to travel distance

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Total GroupNumber of Subjects With Mild Pain at the AV Access SiteBaseline6 Participants
Total GroupNumber of Subjects With Mild Pain at the AV Access SiteMonth 32 Participants
Total GroupNumber of Subjects With Mild Pain at the AV Access SiteMonth 60 Participants
Upper Extremity Arteriovenous Fistula (AVF) - FirstNumber of Subjects With Mild Pain at the AV Access SiteBaseline1 Participants
Upper Extremity Arteriovenous Fistula (AVF) - FirstNumber of Subjects With Mild Pain at the AV Access SiteMonth 31 Participants
Upper Extremity Arteriovenous Fistula (AVF) - FirstNumber of Subjects With Mild Pain at the AV Access SiteMonth 60 Participants
Secondary

Number of Subjects With No Pain at the AV Access Site

This will be determined by using the Verbal Descriptor Scale (VDS). The Verbal Descriptor Scale (VDS) is comprised of a series of descriptive phrases that refer to different levels of pain severity or intensity. Patients select the phrase that best describes their current pain - The verbal descriptor scale asks the patient to describe her or his pain using the following descriptors: no pain, mild pain, moderate pain, severe pain, or pain as bad as it could be.

Time frame: Baseline, 3 and 6 months

Population: Patient expired, some participants also declined (at times) answering questions, and some visits were not performed due to travel distance

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Total GroupNumber of Subjects With No Pain at the AV Access SiteBaseline6 Participants
Total GroupNumber of Subjects With No Pain at the AV Access SiteMonth 34 Participants
Total GroupNumber of Subjects With No Pain at the AV Access SiteMonth 67 Participants
Upper Extremity Arteriovenous Fistula (AVF) - FirstNumber of Subjects With No Pain at the AV Access SiteBaseline13 Participants
Upper Extremity Arteriovenous Fistula (AVF) - FirstNumber of Subjects With No Pain at the AV Access SiteMonth 310 Participants
Upper Extremity Arteriovenous Fistula (AVF) - FirstNumber of Subjects With No Pain at the AV Access SiteMonth 67 Participants
Secondary

Number of Subjects With Severe Pain at the AV Access Site

This will be determined by using the Verbal Descriptor Scale (VDS). The Verbal Descriptor Scale (VDS) is comprised of a series of descriptive phrases that refer to different levels of pain severity or intensity. Patients select the phrase that best describes their current pain - The verbal descriptor scale asks the patient to describe her or his pain using the following descriptors: no pain, mild pain, moderate pain, severe pain, or pain as bad as it could be.

Time frame: Baseline, Month 3 and Month 6

Population: Patient expired, some participants also declined (at times) answering questions, and some visits were not performed due to travel distance

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Total GroupNumber of Subjects With Severe Pain at the AV Access SiteBaseline2 Participants
Total GroupNumber of Subjects With Severe Pain at the AV Access SiteMonth 30 Participants
Total GroupNumber of Subjects With Severe Pain at the AV Access SiteMonth 60 Participants
Upper Extremity Arteriovenous Fistula (AVF) - FirstNumber of Subjects With Severe Pain at the AV Access SiteBaseline0 Participants
Upper Extremity Arteriovenous Fistula (AVF) - FirstNumber of Subjects With Severe Pain at the AV Access SiteMonth 30 Participants
Upper Extremity Arteriovenous Fistula (AVF) - FirstNumber of Subjects With Severe Pain at the AV Access SiteMonth 61 Participants
Secondary

Number of Subject With Moderate Pain at the AV Access Site

This will be determined by using the Verbal Descriptor Scale (VDS). The Verbal Descriptor Scale (VDS) is comprised of a series of descriptive phrases that refer to different levels of pain severity or intensity. Patients select the phrase that best describes their current pain - The verbal descriptor scale asks the patient to describe her or his pain using the following descriptors: no pain, mild pain, moderate pain, severe pain, or pain as bad as it could be.

Time frame: Baseline, Month 3 and Month 6

Population: Patient expired, some participants also declined (at times) answering questions, and some visits were not performed due to travel distance

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Total GroupNumber of Subject With Moderate Pain at the AV Access SiteBaseline3 Participants
Total GroupNumber of Subject With Moderate Pain at the AV Access SiteMonth 32 Participants
Total GroupNumber of Subject With Moderate Pain at the AV Access SiteMonth 62 Participants
Upper Extremity Arteriovenous Fistula (AVF) - FirstNumber of Subject With Moderate Pain at the AV Access SiteBaseline5 Participants
Upper Extremity Arteriovenous Fistula (AVF) - FirstNumber of Subject With Moderate Pain at the AV Access SiteMonth 30 Participants
Upper Extremity Arteriovenous Fistula (AVF) - FirstNumber of Subject With Moderate Pain at the AV Access SiteMonth 61 Participants
Secondary

Patient Satisfaction With Vascular Access

Vascular access questionnaire will be used to assess differences in patient satisfaction with vascular access between the two access interventions using the short-form vascular access questionnaire (SF-VAQ). Mean scores obtained on SF-VAQ will be compared. SF-VAQ score range 4 -20 with higher scores indicating more satisfaction with the vascular access.

Time frame: 3 and 6 months

Population: Number differ form total number of randomized, 1 participant expired, not all questionnaires collected

ArmMeasureGroupValue (MEAN)Dispersion
Total GroupPatient Satisfaction With Vascular Access3 months9.75 score on a scaleStandard Deviation 3.45
Total GroupPatient Satisfaction With Vascular Access6 Months7.55 score on a scaleStandard Deviation 2.74
Total GroupPatient Satisfaction With Vascular Accessweek 210.1 score on a scaleStandard Deviation 3.18
Upper Extremity Arteriovenous Fistula (AVF) - FirstPatient Satisfaction With Vascular Access3 months8.82 score on a scaleStandard Deviation 1.53
Upper Extremity Arteriovenous Fistula (AVF) - FirstPatient Satisfaction With Vascular Access6 Months8.75 score on a scaleStandard Deviation 1.16
Upper Extremity Arteriovenous Fistula (AVF) - FirstPatient Satisfaction With Vascular Accessweek 29.21 score on a scaleStandard Deviation 2.39
Secondary

Performance on Activities of Daily Living (ADLs)

The level of independence will be evaluated using ADLs. ADL score range 0-30, with higher scores denoting more dependence on other people to perform the usual daily activities.

Time frame: Baseline and 6 months

Population: Patients declined survey

ArmMeasureGroupValue (MEAN)Dispersion
Total GroupPerformance on Activities of Daily Living (ADLs)Baseline4.5 score on a scaleStandard Deviation 1.6
Total GroupPerformance on Activities of Daily Living (ADLs)Month 64.2 score on a scaleStandard Deviation 1.82
Upper Extremity Arteriovenous Fistula (AVF) - FirstPerformance on Activities of Daily Living (ADLs)Baseline4.75 score on a scaleStandard Deviation 1.28
Upper Extremity Arteriovenous Fistula (AVF) - FirstPerformance on Activities of Daily Living (ADLs)Month 65.11 score on a scaleStandard Deviation 1.16
Secondary

Performance on Activities of Instrumental Daily Living ADLs (IADLs)

The level of independence will be evaluated using IADLs instruments. ADL score range 0-31, with higher scores denoting more dependence on other people.

Time frame: Baseline, 3 and 6 months

Population: Patients declined survey

ArmMeasureGroupValue (MEAN)Dispersion
Total GroupPerformance on Activities of Instrumental Daily Living ADLs (IADLs)Baseline5.28 score on a scaleStandard Deviation 2.49
Total GroupPerformance on Activities of Instrumental Daily Living ADLs (IADLs)Month 64.4 score on a scaleStandard Deviation 2.65
Upper Extremity Arteriovenous Fistula (AVF) - FirstPerformance on Activities of Instrumental Daily Living ADLs (IADLs)Baseline4.5 score on a scaleStandard Deviation 1.45
Upper Extremity Arteriovenous Fistula (AVF) - FirstPerformance on Activities of Instrumental Daily Living ADLs (IADLs)Month 66.42 score on a scaleStandard Deviation 2.64
Secondary

Physical Activity Level

The Rapid Assessment of Physical Activity (RAPA) instrument will be used to assess habitual physical activity. RAPA test score ≤ 3 corresponded to a sedentary lifestyle or a very light activity level; values ≥4 indicated a moderate to vigorous active lifestyle.

Time frame: 3 and 6 months

Secondary

Physical Activity Level 4-meter Gait

The 4MGS test is a simple screening test and a useful predictor of worsening daily activity in patients with chronic respiratory diseases.

Time frame: Baseline, month 3 and 6

Population: Assessment was added on 2.4.2019 - Subjects could not walk un-assisted

ArmMeasureGroupValue (MEAN)Dispersion
Total GroupPhysical Activity Level 4-meter GaitMonth 65.74 meters per secondStandard Deviation 1.15
Total GroupPhysical Activity Level 4-meter GaitBaseline7.5 meters per secondStandard Deviation 3.04
Total GroupPhysical Activity Level 4-meter GaitMonth 36.88 meters per secondStandard Deviation 2.23
Upper Extremity Arteriovenous Fistula (AVF) - FirstPhysical Activity Level 4-meter GaitBaseline5.1 meters per secondStandard Deviation 1.61
Upper Extremity Arteriovenous Fistula (AVF) - FirstPhysical Activity Level 4-meter GaitMonth 36.04 meters per secondStandard Deviation 2.36
Upper Extremity Arteriovenous Fistula (AVF) - FirstPhysical Activity Level 4-meter GaitMonth 66.34 meters per secondStandard Deviation 2.45
Secondary

Upper Extremity Strength

The grip-strength test will be performed twice on each hand for each assessment and the mean of the two results will be used for statistical analyses; a cut-off point \<16 kg in women and \<26 kg in men will define muscle weakness. Changes in grip strength will be compared between the two access interventions. Assessed with upper arm grip-strength test in each arm using a hand-held dynamometer.

Time frame: 3 and 6 months

Population: Subject could not move hand from past stroke; Subject had joint pain; not completed due to distance

ArmMeasureGroupValue (MEAN)Dispersion
Total GroupUpper Extremity Strength3 Months21.3 kilogramsStandard Deviation 5.6
Total GroupUpper Extremity Strength6 Months19.1 kilogramsStandard Deviation 6.7
Total GroupUpper Extremity StrengthBaseline19.6 kilogramsStandard Deviation 3.3
Upper Extremity Arteriovenous Fistula (AVF) - FirstUpper Extremity Strength3 Months22.6 kilogramsStandard Deviation 6.4
Upper Extremity Arteriovenous Fistula (AVF) - FirstUpper Extremity Strength6 Months20.4 kilogramsStandard Deviation 7.2
Upper Extremity Arteriovenous Fistula (AVF) - FirstUpper Extremity StrengthBaseline17.4 kilogramsStandard Deviation 3.5
Other Pre-specified

AV Access Infection

Incidence rate of AV access infection between the two AV access strategies. This will include fistula or graft cellulitis, abscess, and/or bacteremia due to AV access infection.

Time frame: 12 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Total GroupAV Access Infection3 Participants
Upper Extremity Arteriovenous Fistula (AVF) - FirstAV Access Infection2 Participants
Other Pre-specified

AV Access Primary Failure

Rate of AV access primary failure between the two AV access strategies. Primary access failure is defined as permanent failure of the fistula or graft before hemodialysis suitability. This will include inadequate maturation, thrombosis, failure of first and subsequent cannulations, and/or other complications leading to nonfunctional fistula or graft.

Time frame: 6 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Total GroupAV Access Primary Failure4 Participants
Upper Extremity Arteriovenous Fistula (AVF) - FirstAV Access Primary Failure5 Participants
Other Pre-specified

AV Access Procedures - Number of Endovascular Interventions on Index AV Procedures Access

Number of AV access procedures per 100 patient-days between the two AV access strategies. This will include angioplasty, thrombectomy, stent placement, repeat surgery, and/or surgical superficialization.

Time frame: 12 months

ArmMeasureValue (NUMBER)
Total GroupAV Access Procedures - Number of Endovascular Interventions on Index AV Procedures Access5 procedures per 100 patient-days
Upper Extremity Arteriovenous Fistula (AVF) - FirstAV Access Procedures - Number of Endovascular Interventions on Index AV Procedures Access7 procedures per 100 patient-days
Other Pre-specified

AV Access Procedures - Number of Surgical Re-intervention on Index AV Access Procedures

Number of AV access procedures per 100 patient-days between the two AV access strategies. This will include angioplasty, thrombectomy, stent placement, repeat surgery, and/or surgical superficialization.

Time frame: 12 months

ArmMeasureValue (NUMBER)
Total GroupAV Access Procedures - Number of Surgical Re-intervention on Index AV Access Procedures3 procedures per 100 patient-days
Upper Extremity Arteriovenous Fistula (AVF) - FirstAV Access Procedures - Number of Surgical Re-intervention on Index AV Access Procedures4 procedures per 100 patient-days
Other Pre-specified

AV Access Secondary Failure

Rate of AV access secondary failure between the two AV access strategies. Secondary access failure is defined by permanent AV access failure after the fistula or graft met dialysis suitability criteria with subsequent abandonment.

Time frame: 12 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Total GroupAV Access Secondary Failure5 Participants
Upper Extremity Arteriovenous Fistula (AVF) - FirstAV Access Secondary Failure8 Participants
Other Pre-specified

AV Access Successful Cannulation

Will compare the proportion of patients with successful AV access cannulation between the two AV access strategies. Successful cannulation is defined by the use of the AV access as the primary vascular access for hemodialysis (the fistula or graft access has been cannulated with two 16- or 15-gauge needles for ≥3 consecutive dialysis sessions and the dialysis central venous catheter was removed).

Time frame: 6 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Total GroupAV Access Successful Cannulation8 Participants
Upper Extremity Arteriovenous Fistula (AVF) - FirstAV Access Successful Cannulation8 Participants

Source: ClinicalTrials.gov · Data processed: Feb 27, 2026