Phase III Efficacy and Safety Study of AB103 in the Treatment of Patients With Necrotizing Soft Tissue Infections

Completed · Phase 3

Conditions studied: Necrotizing Soft Tissue Infections, Necrotizing Fasciitis, Fournier's Gangrene

In brief

The purpose of this study is to determine whether AB103 is safe and effective in the treatment of patients with necrotizing soft tissue infections (NSTI) receiving standard of care therapy.

Key facts

Study ID: NCT02469857
Run by: Atox Bio Ltd
People needed: 290
Starts: 2015-12-01
Expected to finish: 2019-10-18
Last updated by the study team: 2021-10-05

Who can join

Age: 12 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

Surgical confirmation of NSTI by attending surgeon;
mSOFA score ≥3 (in any one or combination of the 5 major components of SOFA score with one organ component having a score of at least 2: cardiovascular, respiratory, renal, coagulation, CNS), measured as close as possible to the first debridement;
IV drug administration within 6 hours from the clinical diagnosis and the decision at the study site, to have an urgent surgical exploration and debridement (drug should not be administered until surgical confirmation is established);
If a woman is of childbearing potential, she must consistently use an acceptable method of contraception from baseline through Day 28;
If a male patient's sexual partner is of childbearing potential, the male patient must acknowledge that they will consistently use an acceptable method of contraception (defined above) from baseline through Day 28.
Signed and dated informed consent (ICF) as defined by the Institutional Review Board (IRB) and, if applicable, California Bill of Rights. If patient is unable to comprehend or sign the ICF, patient's legally acceptable representative may sign the ICF

You may not qualify if…

BMI>51;
Patient who has been operated at least once for the current NSTI infection and had a curative deep tissue debridement;
Patients with overt peripheral vascular disease in the involved area ;
Diabetic patients with peripheral vascular disease who present with below the ankle infection;
Removed deep vein thrombosis (DVT) in area of NSTI as an exclusion criteria
Patient with burn wounds;
Current condition of: (a) Inability to maintain a mean arterial pressure > 50 mmHg and/or systolic blood pressure > 70 mmHg for at least 1 hour prior to screening despite the presence of vasopressors and IV fluids or (b) a patient with respiratory failure such that an SaO2 of 80% cannot be achieved or (c) a patient with refractory coagulopathy (INR >5) or thrombocytopenia (platelet count <20,000) that does not partially correct with administration of appropriate factors or blood products;
Chronic neurological impairment that leads to a neuro mSOFA component ≥2;
Recent cerebrovascular accident in the last 3 months;
Patients with cardiac arrest requiring cardiopulmonary resuscitation within the past 30 days;
Patient is not expected to survive throughout 28 days of study due to underlying medical condition, such as poorly controlled neoplasm;
Patient or patient's family are not committed to aggressive management of the patient's condition;
Any concurrent medical condition, which in the opinion of the Investigator, may compromise the safety of the patient or the objectives of the study or the patient will not benefit from treatment such as:
Congestive heart failure (CHF){ New York Heart Association (NYHA) class III-IV}
Severe chronic pulmonary obstructive disease (COPD)
Liver dysfunction {Childs-Pugh class C}
Immunosuppression (see Appendix F, Section 15.6 for list of excluded immunosuppressive medications)
Neutropenia < 1,000 cells/mm3not due to the underlying infection
Idiopathic Thrombocytopenia Purpura
Receiving or about to receive chemotherapy or biologic anti-cancer treatment although hormonal manipulation therapies for breast and prostate malignancies are permitted
Hematological and lymphatic malignancies in the last 5 years;
Known HIV infection with CD4 (cluster of differentiation 4) count < 200 cells/mm3 or < 14% of all lymphocytes;
Patients with known chronic kidney disease (documented pre-illness creatinine value(s) ≥2.0) or patients receiving renal replacement therapy for chronic kidney disease;
Patients that are treated with continuous hemofiltration (e.g. Continuous Veno-Venous Hemofiltration) for acute kidney dysfunction, not due to NSTI, starting prior to study drug administration;
Pregnant or lactating women;

Where it is running

Maricopa Medical Center — Phoenix, Arizona, United States
Banner University Medical Center — Tucson, Arizona, United States
University of Arkansas for Medical Sciences — Little Rock, Arkansas, United States
Loma Linda University Medical Center — Loma Linda, California, United States
Los Angeles Biomedical Research Institute at Harbor UCLA Medical Center — Los Angeles, California, United States
University of California, Davis Medical Center — Sacramento, California, United States
UCSD Medical Center — San Diego, California, United States
UCH-Memorial Health System — Colorado Springs, Colorado, United States
University of Colorado Hospital — Denver, Colorado, United States
Yale New Haven Hospital — New Haven, Connecticut, United States
Washington Hospital Center — Washington D.C., District of Columbia, United States
UF Health Shands Hospital — Gainesville, Florida, United States
Ryder Trauma Center/Jackson Memorial Hospital — Miami, Florida, United States
Emory University at Grady Memorial Hospital — Atlanta, Georgia, United States
Augusta University Health — Augusta, Georgia, United States
University of Iowa Hospital and Clinics — Iowa City, Iowa, United States
University of Kentucky — Lexington, Kentucky, United States
Our Lady of the Lake Regional Medical Center — Baton Rouge, Louisiana, United States
Baton Rouge General Hospital — Baton Rouge, Louisiana, United States
LSU Health Science Center — New Orleans, Louisiana, United States
Maine Medical Center — Portland, Maine, United States
University of Maryland R Adams Cowley Shock Trauma Center — Baltimore, Maryland, United States
Massachusetts General Hospital — Boston, Massachusetts, United States
Brigham and Women's Hospital — Boston, Massachusetts, United States
University of Alabama at Birmingham — Birmingham, Alabama, United States

Full record on ClinicalTrials.gov

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