Status:

TERMINATED

Recombinant Interleukin-7 (CYT107) to Restore Absolute Lymphocyte Counts in Sepsis Patients

Lead Sponsor:

Revimmune

Collaborating Sponsors:

Washington University School of Medicine

University Hospital, Limoges

Conditions:

Sepsis, Severe

Eligibility:

All Genders

18-85 years

Phase:

PHASE2

Brief Summary

This phase II randomized study will assess the effect of receiving IV recombinant human IL-7 (CYT107) versus placebo in lymphopenic sepsis patients The aim is to confirm the immune cell reconstitutio...

Detailed Description

Lymphopenic sepsis Patients will be randomized 3:1 to receive either: a) Intravenous (IV) administration of CYT107 at 10 μg/kg twice a week for 3 weeks or b) IV placebo (normal saline). The effect o...

Eligibility Criteria

Inclusion

  • A written, signed informed consent, by the patient or the patient's legally authorized representative
  • Participants with an absolute lymphocyte count (ALC) ≤ 900 cells/mm3, at two time points at least twelve hours apart, following diagnosis of vasopressor dependent sepsis and,
  • the second time point should not be performed earlier than 48 hours after sepsis diagnosis,
  • study drug treatment initiation is required no later than 120 hours (up to 5 days) after the last qualifying ALC ≤ 900 cells/mm3 measure, and
  • the average value of the two qualifying ALC counts will serve as a baseline to express the percent increase at day 29, or at hospital discharge.
  • Patients in the ICU with onset of vasopressor dependent sepsis defined as hypotension requiring treatment with any vasopressor(s) for at least 6 hours to maintain a systolic pressure ≥ 90 mmHg or a mean arterial pressure ≥65 mmHg AND at least 1 of the 2 organ dysfunction criteria below:
  • Acute respiratory failure defined as the need for invasive mechanical ventilation for at least 24 hours to support pulmonary function
  • Acute kidney injury defined as creatinine \> 2.0 mg/dL (based on new abnormal result following onset of sepsis) OR urine output \< 0.5 mL/kg/hr for \> 4 hours despite adequate fluid resuscitation. In the presence of pre-existing impairment of renal function (defined as a serum creatinine concentration \>2 times the upper limit of the normal reference range prior to the onset of sepsis), the patient must meet the other organ dysfunction criteria.
  • Anticipated hospital duration of up to approx. three weeks after initiating study drug treatment to allow 6 study drug administrations (Days 18 or 19 would be final dose)
  • This study permits the re-enrollment of a participant who may have been discontinued as a pre-treatment screen failure and/or prior to study drug treatment.
  • Age and reproductive status:
  • Women of childbearing potential (WOCBP) must have a negative serum or urine pregnancy test (minimum sensitivity 25 IU/L or equivalent units of HCG) within 24 hours prior to the start of study treatment
  • Women must not be breastfeeding
  • Women of childbearing potential (WOCBP) must agree to follow instructions for method(s) of contraception for the duration of treatment with CYT107 plus 5 half-lives of CYT107 (the terminal half-life of CYT107 is up to 2 days) plus 30 days (duration of ovulatory cycle) for a total of 2 months post-treatment completion.
  • Males who are sexually active with WOCBP must agree to follow instructions for method(s) of contraception for the duration of treatment with CYT107 plus 5 half-lives of CYT107 plus 90 days (duration of sperm turnover) for a total of 7 months post-treatment completion. In addition, male participants must be willing to refrain from sperm donation during this time.
  • Azoospermic males are exempt from contraceptive requirements.
  • WOCBP who are continuously not heterosexually active are also exempt from contraceptive requirements but still must undergo pregnancy testing.

Exclusion

  • Cancer with current chemotherapy or radiotherapy (receipt of chemotherapy or radiotherapy for cancer within the last 6 weeks). All patients with current, or history of, hematologic malignancy (including, but not limited to, ALL, AML, CLL, CML, etc.) or lymphoma will be excluded, regardless of receipt of recent chemotherapy
  • Patients with minimal chance of survival and life expectancy less than 3-5 days as defined by an APACHE II score of ≥ 35 at time of consideration for study eligibility
  • Patients with history or current evidence of autoimmune disease including for example: myasthenia gravis, Guillain Barre syndrome, systemic lupus erythematosus, multiple sclerosis, scleroderma, ulcerative colitis, Crohn's disease, autoimmune hepatitis, Wegener's etc.
  • Patients who have received a solid organ transplant or bone marrow transplant.
  • Patients with active or a history of acute or chronic lymphocytic leukemia
  • AIDS-defining illness (category C) diagnosed within the last 12 months prior to study entry
  • Known history of chronic HBV infection and not on treatment with HBV nucleoside analogues prior to the current hospitalization or HBV DNA \> 100 IU/mL
  • Known history of infection with HCV and currently undergoing treatment for HCV infections or has detectable HCV RNA
  • Known history of tuberculosis and currently undergoing treatment for tuberculosis
  • History of splenectomy
  • Any hematologic disease associated with hypersplenism, such as thalassemia, hereditary spherocytosis, Gaucher's Disease, and autoimmune hemolytic anemia
  • Participation in another investigational interventional study testing a drug or a medical device within the last 3 months prior to study entry
  • Patients receiving immunosuppressive drugs, e.g., TNF-alpha inhibitors, for any reason, or systemic corticosteroids other than hydrocortisone at a dose of 300 mg/day
  • Patients receiving concurrent immunotherapy or biologic agents; including growth factors, cytokines and interleukins other than the study medication : IL-2, Interferons α, β and γ, GM-CSF, G-CSF, HIV vaccines, immunosuppressive drugs, hydroxyurea, immunoglobulins, adoptive cell therapy
  • Prior exposure to IL 7 or other drugs specifically targeting T cells
  • Presence of an advanced directive to withhold or withdraw life-sustaining treatment, DNR order or no CPR order, or comfort measures only order
  • Patients for whom prognosis is poor and source control of septic event is considered unlikely per the clinical and research teams.
  • Patients under guardianship

Key Trial Info

Start Date :

June 1 2019

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

October 6 2021

Estimated Enrollment :

21 Patients enrolled

Trial Details

Trial ID

NCT03821038

Start Date

June 1 2019

End Date

October 6 2021

Last Update

October 27 2021

Active Locations (10)

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Page 1 of 3 (10 locations)

1

University of Florida

Gainesville, Florida, United States, 32610-0108

2

Washington University School of Medicine

St Louis, Missouri, United States, 63110

3

CHU Angers

Angers, France, 49933

4

Hopital HENRI MONDOR

Créteil, France, 94300