Severe SepsisDELyBREGNCT03115125
Descriptive Study of the Evolution in Proportion of Regulatory B Lymphocytes in Patients Hospitalized in Intensive Care for Severe Sepsis
A study testing Describe for the first time the kinetics of evolution in proportion of the circulating Brég in patients with severe septic state, at times D0, D2, D7 and D14 of hospitalization in medical reanimation. in people with Severe Sepsis, run by Centre Hospitalier Universitaire, Amiens at 1 site in France.
Trial summary
Severe sepsis and septic shock are the most severe forms of sepsis (which associates a systemic inflammatory response with infection). These are serious pathologies with a lethality estimated at almost 40% at 28 days (after the onset of sepsis). Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Severe Sepsis
- What is being tested?
- Describe for the first time the kinetics of evolution in proportion of the circulating Brég in patients with severe septic state, at times D0, D2, D7 and D14 of hospitalization in medical reanimation.
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 10 participants
- Where
- 1 siteFrance
- Study dates
- 20 Apr 2016to 12 Aug 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 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Adult patients with severe sepsis or septic shock diagnosed less than 24 hours (defined as D0) and hospitalized in the medical resuscitation department of the Amiens-Picardie University Hospital.
- The definitions of severe sepsis and septic shock are the result of the consensus of the Société de Réanimation de Langue Française dating from 2005:
- Sepsis refers to a systemic inflammatory response syndrome (SIRS) in the presence of suspected or identified infection. Sepsis is said to be severe when lactate> 4 mmol / L or arterial hypotension prior to filling or organ dysfunction is present (one is sufficient): hypoxemia with a PaO2 / FIO2 <300 ratio, renal failure with Hepatic insufficiency with INR> 4 or bilirubin> 78 μmol / l, thrombocytopenia (platelets <100 000 / mm3) and hepatic insufficiency> 176 μmol / l, coagulation disorders with INR> 1.5 Disorders of higher functions with a Glasgow Coma Score <13.
- Finally, septic shock is defined as a severe sepsis condition with persistent hypotension despite a well-conducted vascular filling (20-40 ml / kg isotonic saline).
Who cannot join
- Patient with active neoplasia, immune deficiency, autoimmune disease or autoimmune disease.
- Patient under tutorship or curatorship
- Taking an immunomodulatory or immunosuppressive treatment at the time of the study or the year prior to hospitalization for sepsis.
- Antecedent or haematopoietic graft in progress.
- Pregnancy in progress.
- Known history of infection with human immunodeficiency virus (HIV) type 1 or 2 or with hepatitis B or C virus
- Patient with agranulocytosis (defined as neutrophils <0.5 G / L).
Trial locations and contacts
1 site in 1 country.
About this study
Severe sepsis and septic shock are the most severe forms of sepsis (which associates a systemic inflammatory response with infection). These are serious pathologies with a lethality estimated at almost 40% at 28 days (after the onset of sepsis).
After a first pro-inflammatory phase, a second compensatory phase called Compensatory Anti-Inflammatory Response Syndrome (CARS) takes place quickly. Patients then show signs of immunosuppression and profound alterations in immune functions. It is during this phase that the vast majority of deaths occur, far from the onset of the shock, which is related to the inability of the immune system to eliminate the initial infectious agent and / or a greater susceptibility Important to develop secondary infections (nosocomial infection, latent virus reactivation ...).
Read more
The CARS phase has been the subject of studies focusing on measuring the plasma concentration of anti-inflammatory cytokines (such as Interleukin (IL) -10), the percentage of regulatory T lymphocytes (Treg), Or the percentage of monocytic expression of HLA-DR in septic patients.
The investigator proposes to carry out the first study on a newly described regulatory lymphocytic subpopulation: regulatory B lymphocytes (Breg) from a quantitative and functional point of view in severe septic states.
- Conditions
- Severe Sepsis
- Being tested
- Describe for the first time the kinetics of evolution in proportion of the circulating Brég in patients with severe septic state, at times D0, D2, D7 and D14 of hospitalization in medical reanimation.
- Keywords
- B lymphocyte
- Medical subject headings
- Sepsis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Describe for the first time the kinetics of evolution in proportion of the circulating Brég in patients with severe septic state, at times D0, D2, D7 and D14 of hospitalization in medical reanimation.Other
Describe for the first time the kinetics of evolution in proportion of the circulating Brég in patients with severe septic state, at times D0, D2, D7 and D14 (or on leaving the service if before D14) of hospitalization in medical reanimation.
| Study group | Role | What they receive |
|---|---|---|
| Adult patients with severe sepsis | Other | Not described Receives: Other: Describe for the first time the kinetics of evolution in proportion of the circulating Brég in patients with severe septic state, at times D0, D2, D7 and D14 of hospitalization in medical reanimation. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Variation in the proportion of circulating Breg compared to total B lymphocytes in the included cohort of patients
Measured: 28 days
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted14 Apr 2017
- Study start20 Apr 2016
- Primary completion12 Aug 2022
- Study completion12 Aug 2022
Why it stopped: recruitement difficulties
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Severe SepsisStudies of the same condition, open and under way.
- More trials run by Centre Hospitalier Universitaire, AmiensThe 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 N/A
- Primary purpose
- Other
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 10 participants (actual)
Sponsor and investigators
- Lead sponsor
- Centre Hospitalier Universitaire, Amiens
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03115125
- Sponsor's protocol ID
- PI2015_843_0028
- Acronym
- DELyBREG
- Status last verified
- Jun 2026
- First submitted
- 4 Apr 2017
- Last updated
- 12 Jun 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 12 Jun 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Descriptive Study of the Evolution in Proportion of Regulatory B Lymphocytes in Patients Hospitalized in Intensive Care for Severe Sepsis
- ClinicalTrials.gov ID
- NCT03115125
- Acronym / sponsor ID
- DELyBREG / PI2015_843_0028
- Conditions
- Severe Sepsis
- Keywords
- B lymphocyte
- Study type
- Interventional
- Recruitment status
- TerminatedReason stopped: recruitement difficulties
- Enrolment
- 10 participants (actual)
- Lead sponsor
- Centre Hospitalier Universitaire, AmiensUniversity, hospital or other
- Study start
- 20 Apr 2016 (actual)
- Primary completion
- 12 Aug 2022 (actual)
- Study completion
- 12 Aug 2022 (actual)
- First posted
- 14 Apr 2017 (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.
Severe sepsis and septic shock are the most severe forms of sepsis (which associates a systemic inflammatory response with infection). These are serious pathologies with a lethality estimated at almost 40% at 28 days (after the onset of sepsis).
After a first pro-inflammatory phase, a second compensatory phase called Compensatory Anti-Inflammatory Response Syndrome (CARS) takes place quickly. Patients then show signs of immunosuppression and profound alterations in immune functions. It is during this phase that the vast majority of deaths occur, far from the onset of the shock, which is related to the inability of the immune system to eliminate the initial infectious agent and / or a greater susceptibility Important to develop secondary infections (nosocomial infection, latent virus reactivation ...).
The CARS phase has been the subject of studies focusing on measuring the plasma concentration of anti-inflammatory cytokines (such as Interleukin (IL) -10), the percentage of regulatory T lymphocytes (Treg), Or the percentage of monocytic expression of HLA-DR in septic patients.
The investigator proposes to carry out the first study on a newly described regulatory lymphocytic subpopulation: regulatory B lymphocytes (Breg) from a quantitative and functional point of view in severe septic states.
Study design
- Primary purpose
- Other
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Adult patients with severe sepsis | Other | Other: Describe for the first time the kinetics of evolution in proportion of the circulating Brég in patients with severe septic state, at times D0, D2, D7 and D14 of hospitalization in medical reanimation. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Adult patients with severe sepsis or septic shock diagnosed less than 24 hours (defined as D0) and hospitalized in the medical resuscitation department of the Amiens-Picardie University Hospital.
- The definitions of severe sepsis and septic shock are the result of the consensus of the Société de Réanimation de Langue Française dating from 2005:
Key exclusion criteria (7 listed)
- Patient with active neoplasia, immune deficiency, autoimmune disease or autoimmune disease.
- Patient under tutorship or curatorship
- Taking an immunomodulatory or immunosuppressive treatment at the time of the study or the year prior to hospitalization for sepsis.
- Antecedent or haematopoietic graft in progress.
- Pregnancy in progress.
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 |
|---|---|---|
| Describe for the first time the kinetics of evolution in proportion of the circulating Brég in patients with severe septic state, at times D0, D2, D7 and D14 of hospitalization in medical reanimation.Describe for the first time the kinetics of evolution in proportion of the circulating Brég in patients with severe septic state, at times D0, D2, D7 and D14 (or on leaving the service if before D14) of hospitalization in medical reanimation. | Other | Adult patients with severe sepsis |
Primary outcome
Variation in the proportion of circulating Breg compared to total B lymphocytes in the included cohort of patients
Time frame: 28 days
Results and safety
The study was stopped early (reason given: recruitement difficulties). Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 Jun 2026.
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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 study testing Describe for the first time the kinetics of evolution in proportion of the circulating Brég in patients with severe septic state, at times D0, D2, D7 and D14 of hospitalization in medical reanimation. in people with Severe Sepsis, run by Centre Hospitalier Universitaire, Amiens at 1 site in France.
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 7 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 12 Jun 2026. 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 France. 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 (reason given: recruitement difficulties). 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?
Variation in the proportion of circulating Breg compared to total B lymphocytes in the included cohort of patients (time frame: 28 days). 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 12 Jun 2026.