Clinical trial NCT01922011
Conditions: Acute Hematogenous Osteomyelitis
Sponsor: Cubist Pharmaceuticals LLC, a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
Start date: 2013-09-13; Completion date: 2016-12-20
Enrollment: 149 participants; Allocation: RANDOMIZED; Intervention model: PARALLEL

Brief summary:
The purpose of the study is to determine whether daptomycin is effective and safe in the treatment of pediatric participants with AHO when compared to vancomycin (or equivalent) or nafcillin (or β-lactam equivalent). The primary hypothesis is that daptomycin is non-inferior compared with vancomycin (or equivalent) or nafcillin (or β-lactam equivalent) with respect to improvement in Pain, Inflammation, and Limb Function on or before study Day 5.

Detailed description:
Acute hematogenous osteomyelitis is a common problem in the pediatric population, affecting approximately 5/10,000 children each year and accounting for approximately 1% of all pediatric hospitalizations. In children, osteomyelitis arises from bacteremic seeding of the bone metaphysis.

Daptomycin, is a cyclic lipopeptide antibacterial active against most clinically significant gram-positive pathogens including drug-resistant strains such as Methicillin Resistant Staphylococcus (S.) aureus (MRSA) and Methicillin Susceptible S. aureus (MSSA). Daptomycin has proven clinical efficacy in adults in the treatment of complicated skin and skin structure infections (cSSSI) caused by aerobic gram-positive pathogens and the treatment of S. aureus bloodstream infections (bacteremia; SAB), including those complicated by right-sided infective endocarditis, caused by MSSA and MRSA. Although not indicated for osteomyelitis, daptomycin has been successfully used to treat osteoarticular infections in adults and children as salvage therapy and at medical centers with increasingly high rates of vancomycin resistant organisms.

In addition, more comparative clinical trials are needed in pediatric AHO to better elucidate the optimal treatment regimen and clinical response.

Arms: arm 1: Intravenous (IV) daptomycin was dosed as follows: age 12 years to \<18 years (7 mg/kg); age 7 years to \< 12 years (9 mg/kg); age 24 months to \<7 years (12 mg/kg); age 12 months to \<24 months (12 mg/kg). Drug was infused over 60 minutes ± 10 minutes once daily followed by up to 3 dummy infusions every 6 hours (q6h) infused over 60 (± 10) min to maintain the blind. arm 2: IV vancomycin (or equivalent), 10 to 15 mg/kg, was infused over 60 (± 10) minutes q6h (± 1 hour) or IV nafcillin (or β-lactam equivalent) at 100-200 mg/kg/day, in divided doses was infused over 60 (± 10) min q6h (± 1 hour)
Interventions: intervention 1: Daptomycin intervention 2: Vancomycin (or equivalent) intervention 3: Nafcillin (or equivalent)
Intervention descriptions: intervention 1: IV daptomycin Infusion A in 12 to \<18 years old (7 mg/kg); in 7 to \< 12 year olds (9 mg/kg); in 24 months to \<7 year olds (12 mg/kg); in 12 to \<24 month olds (12 mg/kg). Infused over 60 minutes ± 10 minutes once daily followed by up to 3 dummy infusions every 6 hours (q6h) infused over 60 (± 10) min to maintain the blind. intervention 2: IV vancomycin (or equivalent) (Infusions A,B,C,D), 10 to 15 mg/kg, infused over 60 (± 10) minutes q6h (± 1 hour) intervention 3: IV nafcillin (or β-lactam equivalent) (Infusions A,B,C,D) at 100-200 mg/kg/day, in divided doses infused over 60 (± 10) min q6h (± 1 hour)

Protocol documents: