Chronic Kidney DiseaseRBCNCT01462071
Red Blood Cell Lifespan
An observational study of Chronic Kidney Disease and Hemodialysis, run by Renal Research Institute at 1 site in United States.
Trial summary
Background: A low amount of red blood cells in the blood of patients with limited kidney function is a well known problem. Besides the lack of substances in the blood like iron or erythropoietin the shortened survival of red blood cells leads to the low red blood cell count. Read more about this study
- Who is it for?
- Ages 18 to 88 years
- Conditions the study is for
- Chronic Kidney Disease, Hemodialysis
- How many people
- 58 participants
- Where
- 1 siteUnited States
- Study dates
- May 2008to Mar 2013
- 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 to 88 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: The study population comprises adult patients (at least 18 years of age) who perform chronic peritoneal dialysis treatment or hemodialysis treatment. Both men and women can participate in the study, and no race or ethnic group will be excluded. No subjects that require special protections will be involved.
Who may be able to join
- Age greater than 18 years
- Chronic hemo- or peritoneal dialysis treatment greater than 3 months
Who cannot join
- Inability to understand the English language and give informed consent for participation in the study
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Red Blood Cell Lifespan and Inflammation in Dialysis Patients
Background:
A low amount of red blood cells in the blood of patients with limited kidney function is a well known problem. Besides the lack of substances in the blood like iron or erythropoietin the shortened survival of red blood cells leads to the low red blood cell count. Red blood cells of patients on kidney replacement therapy (dialysis) die earlier than those of healthy persons. They live only about 70 days compared to 120 days in healthy humans. Today little is known about the causes for the shorter survival of the red blood cells in patients on dialysis. Because inflammation leads to a shorter life of the red blood cells in people suffering from several diseases leading to inflammation we would like to learn about the role of inflammation in the shortened life of red blood cells of dialysis patients.
Read more
When red blood cells are dying the content is broken down to several substances. One of these substances is the gas carbon monoxide (CO). The carbon monoxide is exhaled with the breath. The more red blood cells die the more CO is exhaled. That's why we can calculate the lifespan of the red blood cells when we measure the amount of CO in breath at the same time as the red blood cell count in the blood.
Aim of the study:
We aim to learn about the influence of inflammation of on red blood cell survival in dialysis patients. To look for factors with effect on inflammation or red blood cell survival, for example type of dialysis access, medication or kind of dialysis treatment.
Study procedures:
Over the course of the 18 month study, 6 observational assessments will take place. If the patient experiences a situation with increased inflammation during the study period (for example any kind of infection or intervention) up to two more study visits will take place. Each study visit will include blood sampling, performed without the need for an extra needle stick, and a breath sampling in order to calculate the red blood survival and to measure markers for inflammation in the blood. The breath sample will be taken using the easy to use GaSampler device developed by a company called Quintron especially for medical breath sampling.
In order to get a sample of air at the patient's home for calculation of carbon monoxide produced in the body we will ask the patients to take home an open empty plastic bottle before each study visit. The bottle should be kept overnight on a table or sideboard in the apartment. Before leaving home for hemodialysis or in clinic visit the patient will seal the plastic bottle with the top, take it to the dialysis center and hand it to the research staff.
Risks:
The amount of the additional blood drawn is 30 ml; this is the amount 2 tablespoons, at each study visit. This does not harm the patient. The breath sampling does not imply any risk.
- Conditions
- Chronic Kidney Disease, Hemodialysis
- Medical subject headings
- Renal Insufficiency, Chronic
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Chronic kidney disease | Not described |
What is being measured
The primary outcome is the main question the study is designed to answer.
Relationship between inflammation and erythrocyte lifespan
Measured: 6 visits during 18 month period
Secondary outcomes (1)
Evaluate the accuracy of HbA1c and fructosamine measurements for assessment of glucose control
Measured: 6 visits during 18 month period
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted28 Oct 2011 (estimated)
- Study startMay 2008
- Primary completionMar 2013
- Study completionMar 2013
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Chronic Kidney DiseaseStudies 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
- Prospective
- Enrolment
- 58 participants (actual)
Sponsor and investigators
- Lead sponsor
- Renal Research Institute
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Peter Kotanko, MD, Principal investigator, Renal Research Institute
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01462071
- Sponsor's protocol ID
- 039-08
- Acronym
- RBC
- Status last verified
- Feb 2016
- First submitted
- 26 Oct 2011
- Last updated
- 24 Feb 2016
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 24 Feb 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Red Blood Cell Lifespan and Inflammation in Dialysis Patients
- ClinicalTrials.gov ID
- NCT01462071
- Acronym / sponsor ID
- RBC / 039-08
- Conditions
- Chronic Kidney Disease, Hemodialysis
- Study type
- Observational
- Recruitment status
- Terminated
- Enrolment
- 58 participants (actual)
- Lead sponsor
- Renal Research InstituteUniversity, hospital or other
- Study start
- May 2008
- Primary completion
- Mar 2013 (actual)
- Study completion
- Mar 2013 (actual)
- First posted
- 28 Oct 2011 (estimated)
- 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.
Background:
A low amount of red blood cells in the blood of patients with limited kidney function is a well known problem. Besides the lack of substances in the blood like iron or erythropoietin the shortened survival of red blood cells leads to the low red blood cell count. Red blood cells of patients on kidney replacement therapy (dialysis) die earlier than those of healthy persons. They live only about 70 days compared to 120 days in healthy humans. Today little is known about the causes for the shorter survival of the red blood cells in patients on dialysis. Because inflammation leads to a shorter life of the red blood cells in people suffering from several diseases leading to inflammation we would like to learn about the role of inflammation in the shortened life of red blood cells of dialysis patients.
When red blood cells are dying the content is broken down to several substances. One of these substances is the gas carbon monoxide (CO). The carbon monoxide is exhaled with the breath. The more red blood cells die the more CO is exhaled. That's why we can calculate the lifespan of the red blood cells when we measure the amount of CO in breath at the same time as the red blood cell count in the blood.
Aim of the study:
We aim to learn about the influence of inflammation of on red blood cell survival in dialysis patients. To look for factors with effect on inflammation or red blood cell survival, for example type of dialysis access, medication or kind of dialysis treatment.
Study procedures:
Over the course of the 18 month study, 6 observational assessments will take place. If the patient experiences a situation with increased inflammation during the study period (for example any kind of infection or intervention) up to two more study visits will take place. Each study visit will include blood sampling, performed without the need for an extra needle stick, and a breath sampling in order to calculate the red blood survival and to measure markers for inflammation in the blood. The breath sample will be taken using the easy to use GaSampler device developed by a company called Quintron especially for medical breath sampling.
In order to get a sample of air at the patient's home for calculation of carbon monoxide produced in the body we will ask the patients to take home an open empty plastic bottle before each study visit. The bottle should be kept overnight on a table or sideboard in the apartment. Before leaving home for hemodialysis or in clinic visit the patient will seal the plastic bottle with the top, take it to the dialysis center and hand it to the research staff.
Risks:
The amount of the additional blood drawn is 30 ml; this is the amount 2 tablespoons, at each study visit. This does not harm the patient. The breath sampling does not imply any risk.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Chronic kidney disease | – | – |
Who may qualify
- Ages
- 18 to 88 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- The study population comprises adult patients (at least 18 years of age) who perform chronic peritoneal dialysis treatment or hemodialysis treatment. Both men and women can participate in the study, and no race or ethnic group will be excluded. No subjects that require special protections will be involved.
Key inclusion criteria (2 listed)
- Age greater than 18 years
- Chronic hemo- or peritoneal dialysis treatment greater than 3 months
Key exclusion criteria (1 listed)
- Inability to understand the English language and give informed consent for participation in the study
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Relationship between inflammation and erythrocyte lifespan
Time frame: 6 visits during 18 month period
1 secondary outcome
Evaluate the accuracy of HbA1c and fructosamine measurements for assessment of glucose control
Time frame: 6 visits during 18 month period
Results and safety
The study was stopped early. Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Feb 2016.
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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.
Peter Kotanko, MD principal investigator
Renal Research Institute
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 Chronic Kidney Disease and Hemodialysis, run by Renal Research Institute at 1 site in United States.
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 2 inclusion and 1 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: stopped early, as of the sponsor's last update on 24 Feb 2016. 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 United States. 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 was stopped early. 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?
Relationship between inflammation and erythrocyte lifespan (time frame: 6 visits during 18 month period). 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 24 Feb 2016.