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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01419184
Other study ID # 3009-015
Secondary ID DAP-HEOR-10-06
Status Completed
Phase Phase 4
First received
Last updated
Start date September 9, 2011
Est. completion date October 5, 2012

Study information

Verified date August 2018
Source Cubist Pharmaceuticals LLC
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This was a real-world, prospective, open-label, multicenter study in which participants were randomized (1:1) to receive intravenous (IV) vancomycin or IV daptomycin. The purpose of this study is to compare infection-related hospital length of stay, along with a number of participant-reported outcomes, between participants with complicated skin and soft tissue infection treated with daptomycin and vancomycin.


Description:

Eligible participants will be recruited within 24 hours of hospital admission for cSSSI due to suspected or documented Methicillin-resistant Staphylococcus Aureus (MRSA), and who are anticipated to require IV antibiotics effective against MRSA and at least 3 days of hospitalization for management of cSSSI. The primary objective is to compare infection-related hospital length of stay between participants treated with daptomycin and vancomycin. Secondary objectives were to compare participant reported outcomes (pain symptoms and Health Related Quality of Life), 30 day cSSSI-related hospital readmission rates, and cSSSI-related medical resource utilization and costs between participants treated with daptomycin and vancomycin.


Recruitment information / eligibility

Status Completed
Enrollment 250
Est. completion date October 5, 2012
Est. primary completion date September 1, 2012
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria:

- =18 years of age

- Primary reason for hospitalization is skin and skin structure infection of a complicated nature (for example, cellulitis/erysipelas, major cutaneous abscess, or wound infection) that requires IV antibiotic treatment for an anticipated 3 to14 days and hospitalization for management

1. Further defined as infections either involving deeper soft tissue or requiring significant surgical intervention or infections in which the participant has a significant underlying disease state that complicates the response to treatment

2. Are suspected or documented to be caused by MRSA

3. At least 3 of the following clinical signs and symptoms associated with the cSSSI:

i. Pain; tenderness to palpation; ii. Elevated temperature (>37.5°Celsius [99.5° Farenheit] oral or >38° Celsius [100.2° Farenheit] rectal); iii. Elevated white blood count (WBC) >10,000/millimeters cubed (mm^3); iv. Swelling and/or induration; erythema; v. Purulent or seropurulent drainage or discharge

- Physician determination that vancomycin or daptomycin would be the initial treatment of choice for the cSSSI under study (or meets institutional criteria for use of vancomycin or daptomycin)

- Informed consent obtained and signed

- Less than 24 hours post hospital admission

Exclusion Criteria:

- Participants with known bacteremia, osteomyelitis, septic arthritis, or endocarditis

- Conditions where surgery (in and of itself) constitutes curative treatment of the infection (for example, amputation, incision and drainage)

- cSSSIs which can be managed with an oral antibiotic

- Participants where hospitalization is expected to be <48 hours

- Nosocomial infection

- Participants with necrotizing infections or concomitant gangrene

- Use of systemic antibacterial therapy for the infection for > 24 hours within 48 hours prior to the start of study drug unless (a) the infecting Gram-positive pathogen was resistant in vitro to the therapy or (b) the therapy was administered for 3 or more days with either worsening or no improvement in the infection

- Pathogens identified at study entry to be nonsusceptible to daptomycin or vancomycin

- Participants with neutropenia or compromised immune function (that is, severe neutropenia [absolute neutrophil count <500 cells per microliter (µL)] or is anticipated to develop severe neutropenia during the study period due to prior or planned therapy)

- Renal insufficiency (calculated creatinine clearance [CLcr] <30 milliliters per minute or on dialysis)

- Known to be allergic or intolerant to daptomycin or vancomycin

- Pregnant or nursing mothers

- Suspected implanted device or prosthetic as source of infection

- Is considered unlikely to comply with study procedures or to be available for follow-up contact

Study Design


Intervention

Drug:
Daptomycin

Vancomycin


Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
Cubist Pharmaceuticals LLC

Countries where clinical trial is conducted

United States,  Puerto Rico, 

Outcome

Type Measure Description Time frame Safety issue
Primary Infection-Related Hospital Length of Stay Infection Related Hospital Length of Stay (IRLOS) is defined as the number of hours of hospitalization associated with antibiotic treatment of the complicated skin and skin structure infections (cSSSI) beginning at initiation of study-antibiotic administration and ending at discontinuation of all antibiotic therapy for cSSSI or at hospital discharge (whichever occurred first). This included continued hospitalization for treatment of adverse events resulting from use of the study antibiotic or subsequent antimicrobial therapy. The mean number of hours for each treatment group is presented. Baseline (Day 0) through the End of Hospital Stay (up to Day 14)
Secondary Mean Change From Baseline to Hospital Discharge in Pain According to the Brief Pain Inventory-Short Form (BPI-SF) Pain was measured as the amount of pain experienced "right now" by the participant using an 11-point numerical rating scale adapted from Brief Pain Inventory-Short Form (BPI-SF). Participants were asked to rate pain in his or her skin infection from 0 to 10, where 0 is no pain and 10 is pain as bad as he or she could imagine. Change from baseline to hospital discharge is presented; a negative value represents a decrease in pain. Baseline (Day 0), End of Hospital Stay (up to Day 14)
Secondary Mean Change From Baseline to Hospital Discharge in Participant-reported Health-related Quality of Life (HRQoL) Health-related quality of life (HRQoL) was measured using the EuroQol-5 Dimensions, 5 Level (EQ-5D-5L) multi-attribute questionnaire. The 5 dimensions measured were: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. The participant's health state was expressed by a descriptive profile of a 5 digit number. The EQ-5D health states were converted into a single summary index (from 0 to 1, with 0 representing death, to 1 representing perfect health) by applying weights to each of the levels in each dimension. Change from baseline to hospital discharge is presented; positive values represent an increase in health utility. Baseline (Day 0), End of Hospital Stay (up to Day 14)
Secondary Participant Global Impression of Improvement (PGI-I) at Hospital Discharge PGI-I assessments of improvement were measured by asking participants: How is your skin infection today compared to how it was yesterday? Scores were calculated based on response to the single item, where 1 = improved a lot; 2 = improved moderately; 3 = improved a little; 4 = no change; 5 = worsened a little; 6 = worsened moderately; 7 = worsened a lot. Mean PGI-I scores are presented at hospital discharge; lower values represent greater improvement. End of Hospital Stay (up to Day 14)
Secondary 30-day cSSSI-related Hospital Readmission Rates Hospital readmission rates were defined as readmission to an inpatient hospital facility within 30 days of hospital discharge for management of cSSSI relapse or treatment of adverse events related to cSSSI treatment. It did not include all-cause readmissions (for completeness, all-cause readmissions are reported in the descriptive tables). Participants were asked if they had been readmitted to the hospital since their discharge and whether the admission was specifically for their skin infection. The number of participants who were re-hospitalized for skin infection or side effects due to skin infection medication within 30 days since the initial hospital discharge (Day 14) is presented. End of Hospital Stay (up to Day 14) through 30 days post hospital discharge
Secondary cSSSI-related Medical Resource Utilization and Costs Direct medical costs were based on utilization of health resources. Unit cost data were obtained from sources external to the trial and assigned to corresponding medical resource utilization observed within the trial to estimate costs of care. cSSSI-related costs were reported from a societal perspective, and further broken down into a health care system perspective. The health care system perspective includes hospital and outpatient costs. The societal perspective includes the health care system perspective plus participant and caregiver time loss from work and participant and caregiver out-of-pocket expenses. Total cost (including both total inpatient and total post-discharge costs) per participant is presented. Baseline (Day 0) through 30 days post hospital discharge
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