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A Safety and Tolerability Study of Doripenem Compared With Cefepime in Hospitalized Children With Bacterial Pneumonia

2014-07-23 21:09:26 | BioPortfolio

Summary

The purpose of this study is to evaluate the safety and tolerability of doripenem compared to cefepime in children hospitalized with pneumonia.

Description

This is a randomized (study assigned by chance), double-blind (neither physician nor patient knows the name of the assigned study drugs), double-dummy (all patients will be given both a placebo [salt solution] and study drug in alternating periods of time during the study), active comparator-controlled (compare the 'test' treatment to standard-of-care therapy), multinational, multicenter study to establish the safety and tolerability of doripenem (an antibiotic) compared with cefepime (an antibiotic) administered by intravenous (iv) infusion (slow injection of drug solution into the vein over a period of time) in children ages 3 months to less than 18 years hospitalized with confirmed or suspected pneumonia. A minimum of 120 patients will be enrolled in this study and randomly assigned to 1 of 2 treatment groups in a 3:1 ratio: a minimum of 90 patients will be assigned to the doripenem group and 30 patients will be assigned to the cefepime group. The study includes 3 periods: a pretreatment (screening) period that will occur within 2 days prior to randomization (assignment of study drug); a treatment period of 10 to 14 days where patients will receive study drug treatment, and a posttreatment period consisting of 2 study visits. The maximum duration of study drug therapy is 14 days. The total duration of the study is approximately 7 to 8 weeks for each patient. During the pretreatment period, the patient's eligibility for the study will be determined by review of specific entry criteria. After a signed informed consent form explaining the details about the study has been obtained from the patient's parent or legal representative (and a signed assent form has been obtained from patients who are capable of providing assent, typically, children 7 years of age and older), screening procedures will be performed. Screening procedures will include the collection of information about the patient's medical history, demographics (age and race), therapies (including medications) taken within the last 30 days, and any preplanned surgeries or procedures. If a patient is receiving treatment for any chronic pre-existing diseases at the time of study entry, the type and dosage of medications taken should not be changed during the study, if medically appropriate. During screening, a physical examination will be performed, vital signs (heart rate, respiratory rate, and blood pressure) and body temperature obtained, height/length and body weight measured, and signs and symptoms of pneumonia assessed. Within 48 hours before treatment assignment, blood samples (about 3 mL [less than a teaspoon]) will be obtained from patients for laboratory testing (urinalysis, serum chemistry, hematology) and for culture to test for the presence of bacteria in the blood. A chest X-ray (picture of the lung) will be taken to see if the patient has pneumonia. A computerized tomography (CT) Scan, which is a specialized X-ray may also be required if the necessary details are not visible on the chest X-ray. The chest X-ray will be repeated before the end of iv study drug therapy and may be repeated again only if needed at follow-up visits. The study doctor will use a device called a pulse-oximeter (placed on the patient's finger) to measure the amount of oxygen in patient's blood. A sputum (mucus coughed-up from the lung) sample will be collected to test for the bacteria that may be causing the infection in the lung. Fluid that is between the outside of the lungs (called the pleura) and the chest wall that may be infected and cause discomfort and difficulty breathing may be removed with a needle or tube and cultured for the presence of bacteria. In addition, a urine (or serum) pregnancy test will be performed on all girls who have had their first menstrual period. After all screening procedures have been completed, the patient will be assigned to receive iv study drug (doripenem or cefepime) which will be considered Day 1 of the study. Patients will begin treatment with doripenem or cefepime iv infusion within the following 24 hours. Because doripenem will be administered over a 60-minute period and cefepime will be administered over a shorter 30-minute period there is the potential for the patient and study staff to know which study drug is being administered. To prevent this, patients will be administered study drug along with (or paired with) a placebo as follows: patients randomized to receive a 60-minute iv infusion of doripenem will first receive a 30-minute iv infusion of a placebo identical in appearance to cefepime, and patients who are randomized to receive cefepime will receive a 60-minute iv infusion of placebo identical in appearance to doripenem. The 30-minute iv infusions of cefepime/cefepime placebo will be always administered first. During the study, patients will receive a 10 to 14-day course of study drug therapy, which may consist of iv study drug only or at least 3 days of iv study drug followed by other iv or PO antibiotic therapies. Patients will remain hospitalized for the duration of their treatment with iv study drug therapy. During the treatment period, patients who develop renal impairment with a calculated creatinine clearance (measure of the level of the waste product creatinine in the blood and urine) of less than 60 mL per minute or require dialysis for any reason will discontinue treatment with iv study drug but continue to be monitored in the study for safety. Patients with specific types of pneumonia that were contracted in the hospital will be required to complete their treatment course with iv study drug only. After receiving a minimum of 9 paired doses (approximately 72 hours) of iv study drug therapy, patients who contracted pneumonia in the community, do not have other complications and meet specific criteria demonstrating improvement; may, at the discretion of the investigator, be switched to an oral antibiotic (amoxicillin/clavulanate potassium suspension or tablets 3 times a day) to complete a 10- to 14-day antibiotic course of therapy. An alternative oral antibiotic may be considered in cases of intolerance or resistance to amoxicillin/clavulanate potassium. Other therapy for pneumonia will be permitted as follows: azithromycin, vancomycin or aminoglycoside therapy may be administered at any time for other suspected or confirmed infections not covered by the study drug. This therapy may be continued at the discretion of the investigator. If after 72 hours of treatment with iv study drug, no improvement in the signs or symptoms of the patient's pneumonia is observed, or the patient continues to have a fever that is not resolving without an alternative explanation, or continues to has clinical evidence of pneumonia and requires treatment with alternative antibiotic therapy, the patient will be considered a treatment failure and discontinue iv study drug therapy but will continue to be monitored for safety in the study. Throughout the study, all patients will be monitored daily for safety, signs and symptoms of pneumonia, and occurrence of adverse events. In addition, blood samples for serum chemistry and hematology laboratory assessments, and pharmacokinetic (determination of doripenem plasma concentrations), and calculated creatinine clearance will be performed on selected days. Values that are outside of normal limits and more severe will be repeated until they are normal or stable. Within 24 hours of the last dose of study drug (and before discharge from the hospital), patients will have end of treatment (EIV) clinical outcome assessment performed. Patients will be rated with a clinical outcome of "clinical improvement", "clinical failure", or "indeterminate" on the basis of their response to treatment. After the EIV, patients will return for 2 posttreatment study visits conducted 7 to 14 days and 28 to 42 days, respectively, after the last dose of study drug and follow up safety procedures performed. Any patients withdrawn from the study at any time will return to have posttreatment visit procedures performed. The primary outcome measure in the study is safety and tolerability. Safety and tolerability will be evaluated by examining the incidence, severity, and type of adverse events, changes in clinical laboratory tests, vital signs measurements, and findings from physical examinations observed during treatment and at each posttreatment visit. An independent monitoring committee (IDMC) will be established for this study to ensure that the safety of the patients is not compromised. The IDMC will consist of individuals who are not associated with the conduct of the study, and will include but will not be limited to individuals with expertise relevant to the care of pediatric patients, and including at least one infectious disease physician and at least one statistician. Doripenem OR cefepime will be administered to children by iv infusion. Doripenem will be administered at a dose of 20 mg/kg to 500 mg per dose every 8 hours over 60 minutes or cefepime will be administered at a dose of 50 mg/kg to 2 grams per dose every 8 hours over 30 minutes). Matching placebo will be given for alternate study drug (ie, doripenem with cefepime placebo OR cefepime with doripenem placebo)

Study Design

Allocation: Randomized, Endpoint Classification: Safety Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Conditions

Pneumonia, Bacterial

Intervention

doripenem/ cefepime placebo, cefepime/ doripenem placebo

Status

Not yet recruiting

Source

Johnson & Johnson Pharmaceutical Research & Development, L.L.C.

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-23T21:09:26-0400

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