Comparative Study To Determine The Efficacy, Safety, And Tolerability Of Ceftolozane-Tazobactam

Overview

The goal of this clinical research study is to learn if the study drug ceftolozane-tazobactam is more effective in controlling febrile neutropenia (fever and low white blood cell counts) than using approved antibiotics in patients with cancer. The safety of ceftolozane-tazobactam will also be studied.

This is an investigational study. Ceftolozane-tazobactam is FDA approved and commercially available to treat certain types of infections. It is not approved for the treatment of febrile neutropenia, either by itself or in combination with other antibiotics. Its use to treat febrile neutropenia is investigational.

All other antibiotics given on this study are FDA approved and commercially available for the treatment of infections. However, only cefepime is specifically FDA approved to treat febrile neutropenia. The study doctor can explain how the study drugs are designed to work.

Up to 100 participants will take part in this study. All will be enrolled at MD Anderson.

Full Title of Study: “An Investigator Initiated, Phase II Single-Center, Randomized, Open-Label, Prospective, Comparative Study to Determine the Efficacy, Safety, and Tolerability of Ceftolozane-Tazobactam Plus Vancomycin, Linezolid Versus Standard of Care Plus Vancomycin, Linezolid as Empiric Therapy in Febrile Neutropenic Adults With Cancer”

Study Type

  • Study Type: Interventional
  • Study Design
    • Allocation: Randomized
    • Intervention Model: Parallel Assignment
    • Primary Purpose: Treatment
    • Masking: None (Open Label)
  • Study Primary Completion Date: May 31, 2020

Detailed Description

Study Groups and Study Drug Administration:

If participant is found to be eligible to take part in this study and participant agrees, participant will be randomly assigned (as in the flip of a coin) to either receive either the study drug (Group 1) or a standard treatment antibiotic (Group 2). This is done because no one knows if one study group is better, the same, or worse than the other group. Both participant and the study doctor will know what participant is receiving.

If participant is in Group 1, participant will receive ceftolozane-tazobactam by vein over 1 hour every 8 hours.

If participant is in Group 2, participant will receive a standard treatment antibiotic. This may include one of the following 3 options:

cefepime by vein over about 30 minutes every 8 hours. meropenem by vein over about 30 minutes every 8 hours. piperacillin/tazobactam by vein over about 1 hour every 6 hours.

Participant will receive the study drugs by vein for at least 3 days. After 3 days, if the study doctor thinks it is in participant's best interest and participant is eligible, participant may switch to receiving a different antibiotic either by mouth or by vein. The study doctor will tell participant more about what antibiotic participant may begin to receive, how it is administered, and its possible risks. If participant begins taking the study drugs by mouth, the study doctor or study staff will tell participant how and when to take each drug.

If the doctor thinks it is needed, participant will be given additional standard drugs to help control the infection. Participant may ask the study staff for information about how the drugs are given and their risks.

Length of Study:

Participant may receive the study drugs for up to 14 days. Participant will no longer be able to receive the study drugs if the disease gets worse, if intolerable side effects occur, if participant needs treatment that is not allowed on this study, or if participant is unable to follow study directions.

Participation on this study will be over after the late follow-up visit.

Study Visits:

Participant will have the following tests/procedures while participant is in the hospital. If participant begins to take the study drugs by mouth, participant will no longer have these study visits.

Each day for up to 2 weeks, if the doctor thinks it is needed, blood (about 1 tablespoon) or urine will be collected for routine tests.

Every 2 days for up to 2 weeks, blood (about 1 tablespoon) will be drawn to check for infection. Participant will stop having these blood draws when there is no longer a sign of infection and participant does not have a fever.

Twice each week for up to 2 weeks, participant will have a physical exam.

Follow-Up:

Within 72 hours (3 days) after participant's last dose of participant's assigned study treatment and before starting the second antibiotic therapy (if applicable):

Participant will have a physical exam. Blood (about 1 tablespoon) and urine will be collected for routine tests. If participant tested positive for infection at the beginning of the study, blood (about 1 tablespoon) will be drawn to check for infection. The study doctor will tell participant if participant will have this blood draw.

About 21-28 days (3-4 weeks) after participant's first dose of study drug, participant will return to MD Anderson for the following tests/procedures:

Participant will have a physical exam. If participant tested positive for infection at the beginning of the study, blood (about 1 tablespoon) will be drawn to check for infection. The study doctor will tell participant if participant will have this blood draw.

If participant can become pregnant, blood (about 1 teaspoon) will be drawn for a pregnancy test.

About 35-42 days (5-6 weeks) after participant's first dose of study drug, a member of the study staff will call participant to ask about any new drugs participant may have started and if participant is having any side effects. If participant is called, it should last about 10 minutes. If the doctor or study staff thinks it is needed, participant will be asked to come back to the clinic for the following tests/procedures:

Participant will have a physical exam. If the doctor thinks it is needed, blood (about 1 tablespoon) will be drawn to check for infection.

At any of these follow-up visits, if participant's doctor thinks it is needed, participant will have a chest x-ray or CT scan to check participant's lungs.

Interventions

  • Drug: Cefepime
    • Given IV
  • Drug: Ceftolozane
    • Given IV
  • Other: Laboratory Biomarker Analysis
    • Correlative studies
  • Drug: Meropenem
    • Given IV
  • Drug: Piperacillin-Tazobactam
    • Given IV
  • Drug: Tazobactam
    • Given IV

Arms, Groups and Cohorts

  • Experimental: Group I (ceftolozane-tazobactam)
    • Participants receive ceftolozane-tazobactam IV over 1 hour every 8 hours for up to 14 days in the absence of disease progression or unacceptable toxicity. After at least 3 days, participants may switch to different PO or IV antibiotics at the discretion of the study doctor.
  • Active Comparator: Group II (standard of care antibiotic treatment)
    • Participants receive standard of care antibiotic treatment consisting of either cefepime IV over 30 minutes every 8 hours, meropenem IV over 30 minutes every 8 hours, or piperacillin-tazobactam IV over 1 hour every 6 hours for up to 14 days in the absence of disease progression or unacceptable toxicity.

Clinical Trial Outcome Measures

Primary Measures

  • Favorable Clinical Response at End of Inpatient Intravenous Therapy (EOIV)
    • Time Frame: 2 weeks
    • Resolution of all acute signs and symptoms of the primary infection or improvement to such an extent that no additional antibacterial therapy is required (ie, except for protocol-allowed adjunctive therapies and/or oral or IV switch) and such that no more than 14 days of total antibacterial therapy is required.
  • Safety of Combination Therapy of E7070, Idarubicin and Cytarabine Determined by Version 4.03 of the Common Toxicity Criteria for Adverse Events
    • Time Frame: Start of study drug combination up to 30 days after study drug combination stopped

Secondary Measures

  • The proportion of patients in the modified intent-to-treat (MITT) analysis set with favorable clinical response at end of inpatient intravenous therapy (EOIV).
    • Time Frame: 2 weeks
    • Primary efficacy parameter is the proportion of patients in the modified intent-to-treat (MITT) analysis set with favorable clinical response at end of inpatient intravenous therapy (EOIV).
  • Favorable Clinical Response at TOC in the MITT Analysis Set
    • Time Frame: 35 to 42 days after start of IV therapy
    • Sustained resolution of all acute signs and symptoms of the primary infection or continued improvement to such an extent that no further antibacterial therapy is required.
  • Proportion of Patients in the mMITT and CE Analysis Sets with Favorable Clinical Response
    • Time Frame: End of inpatient IV therapy, at 2 weeks, and 6 weeks after study drugs
    • Proportion of patients in the mMITT and CE analysis sets with favorable clinical response determined by baseline Gram-negative pathogen at EOIV, TOC, and LFU
  • Favorable Microbiological Response by Patient and by Baseline Gram-Negative Pathogen at EOIV TOC, and LFU in the mMITT and ME Analysis Sets
    • Time Frame: End of inpatient IV therapy, at 2 weeks, and 6 weeks after study drugs
    • A favorable microbiological response defined as eradication or presumed eradication of the infecting pathogen among patients with microbiologically document infections.
  • Infection-Related Mortality Rate at TOC and LFU in the MITT and mMITT Analysis Sets
    • Time Frame: at 2 weeks, and 6 weeks after study drugs
  • All-Cause Mortality Rate in the MITT and mMITT Analysis Sets
    • Time Frame: 30 days after study drugs

Participating in This Clinical Trial

Inclusion Criteria

  • Has provided written informed consent, and has the willingness and ability to comply with all study procedures
  • Patients with neutropenic fever who have existing malignancy or have undergone hematopoietic stem cell transplantation; neutropenic fever is defined as the presence of neutropenia defined by: 1) absolute neutrophil count (ANC) < 500 cells/mm^3 or has an ANC that is expected to decrease to < 500 cells/mm^3 within 48 hours of trial entry and fever defined as: 2) single oral temperature measurement of > 101 degree Fahrenheit (F) (38.3 degree Celsius [C]) or a temperature of > 100.4 degree F (38.0 degree C) sustained over a 1-hour period
  • Requires hospitalization for IV empiric antibiotic therapy
  • If female: not breastfeeding; agrees to not attempt to become pregnant during the study; is surgically sterile or at least 2-years postmenopausal, or if of childbearing potential, has negative screening serum pregnancy test (if serum pregnancy test results are not available at the time of enrollment, a negative urine pregnancy test is required within 24 hours.); if of childbearing potential (including being < 2 years postmenopausal), is willing to practice sexual abstinence or use an effective dual form of contraception with her partner (eg, 2 barrier methods, barrier method plus hormonal method) during treatment and for ≥ 28 days after the last dose of any study therapy (IV or oral)

Exclusion Criteria

  • History of any hypersensitivity or allergic reaction to any cephalosporin antibiotic or tazobactam
  • Fever suspected to be caused by a noninfectious cause (eg, fever related to drug or blood product administration)
  • Confirmed fungal infection (eg, Pneumocystis jirovecii etiology in patients with pneumonia) that justifies adding additional empiric antimicrobial therapy (eg, antifungals)
  • Confirmed viral infection that justifies adding additional empiric antiviral therapy (eg, ganciclovir, foscarnet)
  • Known acute viral hepatitis
  • Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) level > 5 times the upper limit of normal (x ULN); patients with values > 3 x ULN and < 5 x ULN are eligible if the value is acute and directly related to the infectious process being treated
  • Total bilirubin > 3 x ULN unless isolated hyperbilirubinemia is directly related to the acute infection or due to known Gilbert disease; manifestations of end-stage liver disease, such as ascites or hepatic encephalopathy
  • Known to be human immunodeficiency virus positive
  • Severely impaired renal function, defined as creatinine clearance (CrCl) =< 30 mL/min estimated by the Cockcroft-Gault formula
  • Expected requirement for hemodialysis while on study therapy
  • Received > 24 hours of IV antibacterial therapy (with study drugs) within 72 hours of the initiation of inpatient IV study drug for treatment of suspected infection; antibiotic prophylaxis and oral antibiotics is allowed; prophylactic use of antiviral or antifungal medication is permitted
  • Requirement for any non-study potentially effective concomitant systemic antibacterial therapy
  • Past or current history of epilepsy or seizure disorder; exception: well-documented febrile seizure of childhood
  • Evidence of immediately life-threatening disease, progressively fatal disease, or life expectancy of 3 months or less (eg, moribund or with shock unresponsive to fluid replacement)
  • Unable or unwilling to adhere to the study-specified procedures and restrictions
  • Any condition that would make the patient, in the opinion of the investigator, unsuitable for the study (eg, would place a patient at risk or compromise the quality of the data
  • Participation in any other ongoing ceftolozane/tazobactam trial

Gender Eligibility: All

Minimum Age: 18 Years

Maximum Age: N/A

Are Healthy Volunteers Accepted: No

Investigator Details

  • Lead Sponsor
    • M.D. Anderson Cancer Center
  • Collaborator
    • Merck Sharp & Dohme Corp.
  • Provider of Information About this Clinical Study
    • Sponsor
  • Overall Official(s)
    • Issam I Raad, Principal Investigator, M.D. Anderson Cancer Center
  • Overall Contact(s)
    • Issam Raad, MD, 713-792-6237, iraad@mdanderson.org

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