Blood Coagulation, DisordersPhase 3NCT00953901
Is Plasma Transfusion Beneficial Prior to Low-Risk Procedures in Hospitalized Patients With Blood Clotting Abnormalities?
A Phase 3 study testing Fresh Frozen Plasma Transfusion in people with Blood Coagulation, Disorders and Surgical Procedures, Minimally Invasive, run by Mayo Clinic at 1 site in United States.
Trial summary
Blood clotting abnormalities or problems that happen during surgery ? even minor surgery ? are serious because of the possibility of serious bleeding that cannot be stopped. The current standard practice for people with clotting abnormalities is to transfuse additional blood before the surgery, in an effort to… Read more about this study
- Who is it for?
- Ages 1 year and older
- Conditions the study is for
- Blood Coagulation, Disorders, Surgical Procedures, Minimally Invasive
- What is being tested?
- Fresh Frozen Plasma Transfusion
- How many people
- 2 participants
- Where
- 1 siteUnited States
- Study dates
- Jul 2006to Dec 2008
- Phase
- Phase 3
- 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 1 year and older
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Consenting hospitalized adult
- (>18 years)
- Patients with abnormal INR (INR 1.6-3) due to either vitamin K depletion or antagonism (Coumadin and/or broad spectrum antibiotics) or liver insufficiency
- Patients who are about to undergo one of the three common minimally invasive procedures (thoracocentesis, abdominal paracentesis, and central vein cannulation)
Who cannot join
- None
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Restrictive Versus Liberal Fresh Frozen Plasma Transfusion Prior to Low-Risk Invasive Procedures in Hospitalized Patients.
Blood clotting abnormalities or problems that happen during surgery ? even minor surgery ? are serious because of the possibility of serious bleeding that cannot be stopped. The current standard practice for people with clotting abnormalities is to transfuse additional blood before the surgery, in an effort to decrease bleeding problems. However, transfusing blood before the surgery is not very effective in decreasing bleeding complications. In addition, it may be associated with other complications, including fluid buildup and swelling in the lungs. For this study, a person with a mild clotting problem is defined as one with an INR (International Normalized Ratio) between 1.5 and 3. Severe clotting is defined as an INR greater than 3. This study will aim to test if limiting or restricting transfusion for those patients with severe clotting problems (an INR greater than 3) will result in fewer transfusion problems and fewer unnecessary transfusions in comparison with the current, more liberal, transfusion use for all patients with both mild and severe clotting problems (an INR greater than 1.5).The investigators will also determine if liberal blood transfusion decreases the risk of bleeding after surgical procedures.
Read the detailed description
While the restrictive red cell transfusion practice has become a standard of care in the acutely ill, data on the use of fresh frozen plasma (FFP) are limited. FFP transfusion may not only be poorly effective in prevention of bleeding complications but is associated with significant complications. In a retrospective cohort of critically ill non-surgical patients with abnormal international normalized ratio (INR), we have observed significant variability in the practice of FFP transfusion. Rather than a benefit with liberal use, more adverse effects were observed, in particular pulmonary edema and acute lung injury. Our overall goal is to improve the safety of blood product transfusion and prevent pulmonary complications. Here we propose a randomized clinical trial of restrictive (INR 1.6-3) versus liberal (FFP transfusion to keep INR < 1.6) FFP transfusion prior to commonly performed invasive procedures (thoracocentesis, abdominal paracentesis and central venous cannulation). We will use the following outcome measures to compare the differences between the two groups: 1. New onset pulmonary edema; 2. Postprocedural bleeding complications; 3. Number of blood product transfusions; 4. Hospital mortality and 5. Length of intensive care unit and hospital stay. The results of this study will form the basis for future multicenter clinical trials with implications for worldwide transfusion practice.
- Being tested
- Fresh Frozen Plasma Transfusion
- Medical subject headings
- Hemostatic Disorders
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Fresh Frozen Plasma TransfusionDrug
What is being measured
The primary outcome is the main question the study is designed to answer.
New onset pulmonary edema
Secondary outcomes (4)
Postprocedural bleeding complications
Number of blood product transfusions
Hospital mortality
Length of intensive care unit and hospital stay
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Aug 2009 (estimated)
- Study startJul 2006
- Primary completionDec 2007
- Study completionDec 2008
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Blood Coagulation, DisordersStudies of the same condition, open and under way.
- More trials run by Mayo ClinicThe sponsor's other registered studies.
- 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
- Interventional
- Phase
- Phase 3
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Enrolment
- 2 participants (actual)
Sponsor and investigators
- Lead sponsor
- Mayo Clinic
- Sponsor type
- University, hospital or other
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00953901
- Sponsor's protocol ID
- 2247-05
- Status last verified
- Nov 2009
- First submitted
- 4 Aug 2009
- Last updated
- 16 Nov 2009
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 16 Nov 2009. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Restrictive Versus Liberal Fresh Frozen Plasma Transfusion Prior to Low-Risk Invasive Procedures in Hospitalized Patients.
- ClinicalTrials.gov ID
- NCT00953901
- Acronym / sponsor ID
- 2247-05
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 2 participants (actual)
- Lead sponsor
- Mayo ClinicUniversity, hospital or other
- Study start
- Jul 2006
- Primary completion
- Dec 2007 (actual)
- Study completion
- Dec 2008 (actual)
- First posted
- 6 Aug 2009 (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.
Blood clotting abnormalities or problems that happen during surgery ? even minor surgery ? are serious because of the possibility of serious bleeding that cannot be stopped. The current standard practice for people with clotting abnormalities is to transfuse additional blood before the surgery, in an effort to decrease bleeding problems. However, transfusing blood before the surgery is not very effective in decreasing bleeding complications. In addition, it may be associated with other complications, including fluid buildup and swelling in the lungs. For this study, a person with a mild clotting problem is defined as one with an INR (International Normalized Ratio) between 1.5 and 3. Severe clotting is defined as an INR greater than 3. This study will aim to test if limiting or restricting transfusion for those patients with severe clotting problems (an INR greater than 3) will result in fewer transfusion problems and fewer unnecessary transfusions in comparison with the current, more liberal, transfusion use for all patients with both mild and severe clotting problems (an INR greater than 1.5).The investigators will also determine if liberal blood transfusion decreases the risk of bleeding after surgical procedures.
Detailed description
While the restrictive red cell transfusion practice has become a standard of care in the acutely ill, data on the use of fresh frozen plasma (FFP) are limited. FFP transfusion may not only be poorly effective in prevention of bleeding complications but is associated with significant complications. In a retrospective cohort of critically ill non-surgical patients with abnormal international normalized ratio (INR), we have observed significant variability in the practice of FFP transfusion. Rather than a benefit with liberal use, more adverse effects were observed, in particular pulmonary edema and acute lung injury. Our overall goal is to improve the safety of blood product transfusion and prevent pulmonary complications. Here we propose a randomized clinical trial of restrictive (INR 1.6-3) versus liberal (FFP transfusion to keep INR < 1.6) FFP transfusion prior to commonly performed invasive procedures (thoracocentesis, abdominal paracentesis and central venous cannulation). We will use the following outcome measures to compare the differences between the two groups: 1. New onset pulmonary edema; 2. Postprocedural bleeding complications; 3. Number of blood product transfusions; 4. Hospital mortality and 5. Length of intensive care unit and hospital stay. The results of this study will form the basis for future multicenter clinical trials with implications for worldwide transfusion practice.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
Who may qualify
- Ages
- 1 year and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (4 listed)
- Consenting hospitalized adult
- (>18 years)
- Patients with abnormal INR (INR 1.6-3) due to either vitamin K depletion or antagonism (Coumadin and/or broad spectrum antibiotics) or liver insufficiency
- Patients who are about to undergo one of the three common minimally invasive procedures (thoracocentesis, abdominal paracentesis, and central vein cannulation)
Key exclusion criteria (1 listed)
- None
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 |
|---|---|---|
| Fresh Frozen Plasma Transfusion | Drug | – |
Primary outcome
New onset pulmonary edema
4 secondary outcomes
Postprocedural bleeding complications
Number of blood product transfusions
Hospital mortality
Length of intensive care unit and hospital stay
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 16 Nov 2009.
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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.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Fresh Frozen Plasma Transfusion in people with Blood Coagulation, Disorders and Surgical Procedures, Minimally Invasive, run by Mayo Clinic 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 4 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: finished, as of the sponsor's last update on 16 Nov 2009. 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.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
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?
New onset pulmonary edema. 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 16 Nov 2009; AzTrials last refreshed its copy on 7 Nov 2026.