HemodialysisHemodialysisNCT04933006
Hemodialysis-Induced Blood Pressure Change In End-Stage Renal Disease
An observational study of Hemodialysis, run by Shahid Beheshti University of Medical Sciences at 1 site in Iran.
Trial summary
Cardiovascular events are still the leading cause of mortality and morbidity in patients with ESRD including hemodialysis patients . Although the conventional risk factors of CVD are relatively recognized in general population, an inverse epidemiologic relationship has been reported for many CV risk factors in CKD… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Hemodialysis
- What is being tested?
- Pulsevelocity
- How many people
- 52 participants
- Where
- 1 siteIran
- Study dates
- 1 Aug 2021to 1 Jan 2022
- Phase
- Observational
- 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 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Patients on maintenance hemodialysis, for at least 12 hours per weeks were included into the study. But, patients with symptomatic CVD, AV fistula on both arms, acute deteriorating states and any recent major trauma or patients who refused measurements were excluded. No change in their current medication was administered. All patients were on maintenance HD for at least 12 months and were assumed as good volume controlled.
Who may be able to join
- Patients on maintenance hemodialysis for at least 12 hours per weeks
Who cannot join
- Patients with symptomatic CVD
- Recent major trauma
- Patients who refused measurements
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Hemodialysis-Induced Blood Pressure Change As A Prognostic Factor In End-Stage Renal Disease
Cardiovascular events are still the leading cause of mortality and morbidity in patients with ESRD including hemodialysis patients . Although the conventional risk factors of CVD are relatively recognized in general population, an inverse epidemiologic relationship has been reported for many CV risk factors in CKD patients, including hypertension, BMI and lipid profile .Therefore, a comprehensive investigation is necessary to be able to do effective risk management strategies in this population and some surrogate markers are required to be determined for illustrating the net effect of the risk factors.
While several mechanisms have been attributed to hypertension in hemodialysis (HD) patients, the exact pathogenesis, impact, monitoring and control of hypertension in HD patients are still challenging subjects in clinical nephrology. Both low and high BP associate with higher mortality in HD. But a reliable marker for defining an optimal BP in HD is still an important question.
It seems that arterial stiffness play an axial role in the cardiovascular and renal adverse outcomes in CKD and HD, as it is in several other populations , Arterial stiffness has been demonstrated as an independent predictor of mortality in hemodialysis patients . However, hemodialysis patients experience a fluctuating hemodynamic state and there are several limitations for consecutive measurement of arterial stiffness indices such as pulse wave velocity (PWV). Furthermore, the expensive measurement devices and expert operators might not be available in every dialysis center.
Read the detailed description
From 60 patients who were on a HD program in a HD center in a referral hospital, fifty one individuals were included into the study. Patients on maintenance hemodialysis, for at least 12 hours per weeks were included into the study. But, patients with symptomatic CVD, AV fistula on both arms, acute deteriorating states and any recent major trauma or patients who refused measurements were excluded. No change in their current medication was administered. All patients were on maintenance HD for at least 12 months and were assumed as good volume controlled. Dialysis protocol with a mean sp KT/V = 1.4/ session, using Bicarbonate dialysate, dialysate flow rate = 500cc /min was applied by Fresenius B 4008machine. BP was measured using a validated automated device (Omron-HBP1300). Pulse wave analysis was performed using the SphygmoCor (Sydney, Atcor Medical®,2005) to assess Augmentation Index (AIx) as a surrogate for arterial stiffness, as well as several hemodynamic measures at the recruitment and repeated in alive individuals after 5 years of follow-up. Similarly Echocardiography was employed at the beginnings and repeated at the end of the study by EKO 7 Cardiovascular Ultrasound System (Samsung Medison©). A single observerwas responsible for each series of measurements, double checked.
- Conditions
- Hemodialysis
- Being tested
- Pulsevelocity
- Keywords
- Echocardiography
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
PulsevelocityDiagnostic test
Also called Echocardiography
arterial stiffness evaluation with pulsewave velocity
What is being measured
The primary outcome is the main question the study is designed to answer.
mortality
percentage of mortality during hemodialysis due to blood pressure changes
Measured: during the six month post starting hemodialysis
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Jun 2021
- Study start1 Aug 2021
- Primary completion1 Dec 2021
- Study completion1 Jan 2022
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for HemodialysisStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Retrospective
- Enrolment
- 52 participants (actual)
Sponsor and investigators
- Lead sponsor
- Shahid Beheshti University of Medical Sciences
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, nooshin dalili, Shahid Beheshti University of Medical Sciences
- Investigators
- SBMU SBMU, Study director, Shahid Beheshti University of Medical Sciences
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04933006
- Sponsor's protocol ID
- SBMU326
- Acronym
- Hemodialysis
- Status last verified
- Jan 2022
- First submitted
- 13 Jun 2021
- Last updated
- 11 Feb 2022
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 11 Feb 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Hemodialysis-Induced Blood Pressure Change As A Prognostic Factor In End-Stage Renal Disease
- ClinicalTrials.gov ID
- NCT04933006
- Acronym / sponsor ID
- Hemodialysis / SBMU326
- Conditions
- Hemodialysis
- Keywords
- Echocardiography
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 52 participants (actual)
- Lead sponsor
- Shahid Beheshti University of Medical SciencesUniversity, hospital or other
- Study start
- 1 Aug 2021 (actual)
- Primary completion
- 1 Dec 2021 (actual)
- Study completion
- 1 Jan 2022 (actual)
- First posted
- 21 Jun 2021 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Cardiovascular events are still the leading cause of mortality and morbidity in patients with ESRD including hemodialysis patients . Although the conventional risk factors of CVD are relatively recognized in general population, an inverse epidemiologic relationship has been reported for many CV risk factors in CKD patients, including hypertension, BMI and lipid profile .Therefore, a comprehensive investigation is necessary to be able to do effective risk management strategies in this population and some surrogate markers are required to be determined for illustrating the net effect of the risk factors.
While several mechanisms have been attributed to hypertension in hemodialysis (HD) patients, the exact pathogenesis, impact, monitoring and control of hypertension in HD patients are still challenging subjects in clinical nephrology. Both low and high BP associate with higher mortality in HD. But a reliable marker for defining an optimal BP in HD is still an important question.
It seems that arterial stiffness play an axial role in the cardiovascular and renal adverse outcomes in CKD and HD, as it is in several other populations , Arterial stiffness has been demonstrated as an independent predictor of mortality in hemodialysis patients . However, hemodialysis patients experience a fluctuating hemodynamic state and there are several limitations for consecutive measurement of arterial stiffness indices such as pulse wave velocity (PWV). Furthermore, the expensive measurement devices and expert operators might not be available in every dialysis center.
Detailed description
From 60 patients who were on a HD program in a HD center in a referral hospital, fifty one individuals were included into the study. Patients on maintenance hemodialysis, for at least 12 hours per weeks were included into the study. But, patients with symptomatic CVD, AV fistula on both arms, acute deteriorating states and any recent major trauma or patients who refused measurements were excluded. No change in their current medication was administered. All patients were on maintenance HD for at least 12 months and were assumed as good volume controlled. Dialysis protocol with a mean sp KT/V = 1.4/ session, using Bicarbonate dialysate, dialysate flow rate = 500cc /min was applied by Fresenius B 4008machine. BP was measured using a validated automated device (Omron-HBP1300). Pulse wave analysis was performed using the SphygmoCor (Sydney, Atcor Medical®,2005) to assess Augmentation Index (AIx) as a surrogate for arterial stiffness, as well as several hemodynamic measures at the recruitment and repeated in alive individuals after 5 years of follow-up. Similarly Echocardiography was employed at the beginnings and repeated at the end of the study by EKO 7 Cardiovascular Ultrasound System (Samsung Medison©). A single observerwas responsible for each series of measurements, double checked.
Study design
- Observational model
- Cohort
- Time perspective
- Retrospective
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Patients on maintenance hemodialysis, for at least 12 hours per weeks were included into the study. But, patients with symptomatic CVD, AV fistula on both arms, acute deteriorating states and any recent major trauma or patients who refused measurements were excluded. No change in their current medication was administered. All patients were on maintenance HD for at least 12 months and were assumed as good volume controlled.
Key inclusion criteria (1 listed)
- Patients on maintenance hemodialysis for at least 12 hours per weeks
Key exclusion criteria (3 listed)
- Patients with symptomatic CVD
- Recent major trauma
- Patients who refused measurements
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| PulsevelocityAlso: Echocardiographyarterial stiffness evaluation with pulsewave velocity | Diagnostic test | – |
Primary outcome
mortality
Time frame: during the six month post starting hemodialysis
percentage of mortality during hemodialysis due to blood pressure changes
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 11 Feb 2022.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
SBMU SBMU study director
Shahid Beheshti University of Medical Sciences
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Hemodialysis, run by Shahid Beheshti University of Medical Sciences at 1 site in Iran.
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 1 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: finished, as of the sponsor's last update on 11 Feb 2022. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Iran. 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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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?
mortality (time frame: during the six month post starting hemodialysis). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 11 Feb 2022.