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Efficacy and Safety of Dalbavancin Compared to Standard of Care Antibiotic Therapy for the Completion of Treatment of Patients With Complicated Bacteremia or Infective Endocarditis

Phase 2, Open-Label, Randomized, Multicenter Study to Compare the Efficacy and Safety of Dalbavancin to Standard of Care Antibiotic Therapy for the Completion of Treatment of Patients With Complicated Bacteremia or Documented Infective Endocarditis

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03148756
Enrollment
2
Registered
2017-05-11
Start date
2017-05-12
Completion date
2017-08-04
Last updated
2022-04-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bacteremia, Endocarditis

Brief summary

This study will compare dalbavancin to standard of care (SOC) antibiotic therapy for the completion of therapy in patients with complicated bacteremia or infective endocarditis.

Interventions

DRUGDalbavancin

Dalbavancin 1500 mg, intravenous (IV) administration over 30 minutes on Day 1, and on Day 8.

DRUGStandard of Care

Antibiotic consistent with Standard of Care (SOC), based on baseline pathogen, for 4 to 6 weeks.

Sponsors

AbbVie
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* A diagnosis of complicated bacteremia or infective endocarditis * Gram-positive bacteremia at screening with methicillin-susceptible Staphylococcus aureus (MSSA), methicillin-resistant Staphylococcus aureus (MRSA) or Streptococci * Treatment with standard of care antibiotics for 72 hours (h) - 10 days * Defervescence for at least 24h and clearance of bacteremia from screening pathogen.

Exclusion criteria

* Embolic events * History of prosthetic valve surgery, cardiac device or prosthetic joint * Left-sided endocarditis due to Staphylococcus aureus (S. aureus) * Large mobile vegetations (\>10 mm) on mitral valves * Perivalvular abscess * Uncomplicated bacteremia due to S. aureus * Gram-negative bacteria or fungi in blood cultures * Heart failure associated with infective endocarditis \[Left Ventricular Ejection Fraction (LVEF) \<40%\] * Intravascular material or removable infection source not intended to be removed within 4 days postrandomization * Planned valve replacement surgery within 3 days of randomization * Refractory shock, significant hepatic insufficiency or severe leukopenia \[Absolute Neutrophil Count (ANC) \< 500 cells/mm\^3\] * Known osteomyelitis * Hypersensitivity to dalbavancin or other drugs in glycopeptide class * Infection with enterococci, coagulase-negative staphylococci, or with organism not susceptible to dalbavancin or vancomycin * Immunosuppression/immune deficiency * Concomitant systemic antibacterial therapy for gram-positive infection other than that allowed in protocol * Pregnant or nursing females.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Clinical Response at Day 84 in the Intent-to Treat (ITT) PopulationDay 84Clinical response was either success or failure. Success was defined as resolution of clinical signs and symptoms of complicated bacteremia or infective endocarditis (IE) such that no additional antibiotic therapy was required. Failure was defined as: ongoing signs and symptoms considered by the investigator to be related to complicated bacteremia or IE requiring additional antibacterial therapy or unplanned valve replacement, recurrent bacteremia, death during the study period up to Day 84 or discontinuation of the study medication due to an adverse event.

Secondary

MeasureTime frameDescription
Percentage of Participants With Clinical Outcome of Success at Day 42 in the Clinically Evaluable (CE) PopulationDay 42Clinical outcome was either success or failure. Success was defined as resolution of clinical signs and symptoms of complicated bacteremia or infective endocarditis (IE) such that no additional antibiotic therapy was required.
Number of Participants With Day 84 Mortality in the Safety PopulationDay 84Day 84 mortality was measured by the number of deaths up to Day 84.
Percentage of Participants With Clinical Outcome of Success at Day 84 in the CE PopulationDay 84Clinical outcome was either success or failure/relapse. Success was defined as resolution of clinical signs and symptoms of complicated bacteremia or infective endocarditis (IE) such that no additional antibiotic therapy was required.
Percentage of Participants With Clinical Outcome of Success by Pathogen at Day 42 in the ITT PopulationDay 42Clinical outcome was either success or failure. Success was defined as resolution of clinical signs and symptoms of complicated bacteremia or infective endocarditis (IE) such that no additional antibiotic therapy was required.
Percentage of Participants With Clinical Outcome of Success by Pathogen at Day 84 in the ITT PopulationDay 84Clinical outcome was either success or failure. Success was defined as resolution of clinical signs and symptoms of complicated bacteremia or infective endocarditis (IE) such that no additional antibiotic therapy was required.
Percentage of Participants With Clinical Outcome of Success at Day 42 in the ITT PopulationDay 42Clinical outcome was either success or failure. Success was defined as resolution of clinical signs and symptoms of complicated bacteremia or infective endocarditis (IE) such that no additional antibiotic therapy was required.
Percentage of Participants With Clinical Outcome of Success by Pathogen at Day 84 in the CE PopulationDay 84Clinical outcome was either success or failure. Success was defined as resolution of clinical signs and symptoms of complicated bacteremia or infective endocarditis (IE) such that no additional antibiotic therapy was required.
Percentage of Participants With Microbiological Success by Pathogen at Day 42 in the ITT PopulationDay 42Microbiological outcome could be either microbiologic success or microbiologic failure. Microbiologic Success was defined as no further growth of baseline pathogen from blood cultures.
Percentage of Participants With Microbiological Success by Pathogen at Day 84 in the ITT PopulationDay 84Microbiological outcome could be either microbiologic success or microbiologic failure. Microbiologic Success was defined as no further growth of baseline pathogen from blood cultures.
Percentage of Participants With Microbiological Success by Pathogen at Day 42 in the CE PopulationDay 42Microbiological outcome could be either microbiologic success or microbiologic failure. Microbiologic Success was defined as no further growth of baseline pathogen from blood cultures.
Percentage of Participants With Microbiological Success by Pathogen at Day 84 in the CE PopulationDay 84Microbiological outcome could be either microbiologic success or microbiologic failure. Microbiologic Success was defined as no further growth of baseline pathogen from blood cultures.
Percentage of Participants With Clinical Outcome of Success by Pathogen at Day 42 in the CE PopulationDay 42Clinical outcome was either success or failure. Success was defined as resolution of clinical signs and symptoms of complicated bacteremia or infective endocarditis (IE) such that no additional antibiotic therapy was required.

Countries

United States

Participant flow

Participants by arm

ArmCount
Dalbavancin
Dalbavancin 1500 mg, intravenous (IV) administration over 30 minutes on Day 1, and on Day 8.
0
Standard of Care
Antibiotic consistent with Standard of Care (SOC), based on baseline pathogen, for 4 to 6 weeks.
2
Total2

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyStudy Terminated01

Baseline characteristics

CharacteristicTotalDalbavancinStandard of Care
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
0 Participants
Race/Ethnicity, Customized
White
2 Participants0 Participants2 Participants
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 00 / 2
other
Total, other adverse events
0 / 01 / 2
serious
Total, serious adverse events
0 / 00 / 0

Outcome results

Primary

Number of Participants With Clinical Response at Day 84 in the Intent-to Treat (ITT) Population

Clinical response was either success or failure. Success was defined as resolution of clinical signs and symptoms of complicated bacteremia or infective endocarditis (IE) such that no additional antibiotic therapy was required. Failure was defined as: ongoing signs and symptoms considered by the investigator to be related to complicated bacteremia or IE requiring additional antibacterial therapy or unplanned valve replacement, recurrent bacteremia, death during the study period up to Day 84 or discontinuation of the study medication due to an adverse event.

Time frame: Day 84

Population: ITT Population included all randomized participants regardless of whether or not study treatment was received. No participants were enrolled in the Dalbavancin arm. Due to early termination of the study, 1 participant did not have clinical outcomes determined, but did have an early termination visit.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Standard of CareNumber of Participants With Clinical Response at Day 84 in the Intent-to Treat (ITT) PopulationSuccess1 Participants
Standard of CareNumber of Participants With Clinical Response at Day 84 in the Intent-to Treat (ITT) PopulationFailure0 Participants
Secondary

Number of Participants With Day 84 Mortality in the Safety Population

Day 84 mortality was measured by the number of deaths up to Day 84.

Time frame: Day 84

Population: Safety Population included all randomized participants who received at least 1 dose of study treatment. No participants were enrolled in the Dalbavancin arm. Due to early termination of the study, 1 participant did not have clinical outcomes determined, but did have an early termination visit.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Standard of CareNumber of Participants With Day 84 Mortality in the Safety Population0 Participants
Secondary

Percentage of Participants With Clinical Outcome of Success at Day 42 in the Clinically Evaluable (CE) Population

Clinical outcome was either success or failure. Success was defined as resolution of clinical signs and symptoms of complicated bacteremia or infective endocarditis (IE) such that no additional antibiotic therapy was required.

Time frame: Day 42

Population: CE Population included all participants in the mITT Population (all in the ITT who received ≥1 dose of study treatment) who met criteria for clinical evaluability. No participants were enrolled in the Dalbavancin arm. Due to early termination of the study, 1 participant did not have clinical outcomes determined, but did have a termination visit.

ArmMeasureValue (NUMBER)
Standard of CarePercentage of Participants With Clinical Outcome of Success at Day 42 in the Clinically Evaluable (CE) Population100 percentage of participants
Secondary

Percentage of Participants With Clinical Outcome of Success at Day 42 in the ITT Population

Clinical outcome was either success or failure. Success was defined as resolution of clinical signs and symptoms of complicated bacteremia or infective endocarditis (IE) such that no additional antibiotic therapy was required.

Time frame: Day 42

Population: ITT Population included all randomized participants regardless of whether or not study treatment was received. No participants were enrolled in the Dalbavancin arm. Due to early termination of the study, 1 participant did not have clinical outcomes determined, but did have an early termination visit.

ArmMeasureValue (NUMBER)
Standard of CarePercentage of Participants With Clinical Outcome of Success at Day 42 in the ITT Population100 percentage of participants
Secondary

Percentage of Participants With Clinical Outcome of Success at Day 84 in the CE Population

Clinical outcome was either success or failure/relapse. Success was defined as resolution of clinical signs and symptoms of complicated bacteremia or infective endocarditis (IE) such that no additional antibiotic therapy was required.

Time frame: Day 84

Population: CE Population included all participants in the mITT Population (all in the ITT who received ≥1 dose of study treatment) who met criteria for clinical evaluability. No participants were enrolled in the Dalbavancin arm. Due to early termination of the study, 1 participant did not have clinical outcomes determined, but did have a termination visit.

ArmMeasureValue (NUMBER)
Standard of CarePercentage of Participants With Clinical Outcome of Success at Day 84 in the CE Population100 percentage of participants
Secondary

Percentage of Participants With Clinical Outcome of Success by Pathogen at Day 42 in the CE Population

Clinical outcome was either success or failure. Success was defined as resolution of clinical signs and symptoms of complicated bacteremia or infective endocarditis (IE) such that no additional antibiotic therapy was required.

Time frame: Day 42

Population: CE Population included all participants in the mITT Population (all in the ITT who received ≥1 dose of study treatment) who met criteria for clinical evaluability. No participants were enrolled in the Dalbavancin arm. Due to early termination of the study, 1 participant did not have clinical outcomes determined, but did have a termination visit.

ArmMeasureValue (NUMBER)
Standard of CarePercentage of Participants With Clinical Outcome of Success by Pathogen at Day 42 in the CE Population100 percentage of participants
Secondary

Percentage of Participants With Clinical Outcome of Success by Pathogen at Day 42 in the ITT Population

Clinical outcome was either success or failure. Success was defined as resolution of clinical signs and symptoms of complicated bacteremia or infective endocarditis (IE) such that no additional antibiotic therapy was required.

Time frame: Day 42

Population: ITT Population included all randomized participants regardless of whether or not study treatment was received. No participants were enrolled in the Dalbavancin arm. Due to early termination of the study, 1 participant did not have clinical outcomes determined, but did have an early termination visit.

ArmMeasureValue (NUMBER)
Standard of CarePercentage of Participants With Clinical Outcome of Success by Pathogen at Day 42 in the ITT Population100 percentage of participants
Secondary

Percentage of Participants With Clinical Outcome of Success by Pathogen at Day 84 in the CE Population

Clinical outcome was either success or failure. Success was defined as resolution of clinical signs and symptoms of complicated bacteremia or infective endocarditis (IE) such that no additional antibiotic therapy was required.

Time frame: Day 84

Population: CE Population included all participants in the mITT Population (all in the ITT who received ≥1 dose of study treatment) who met criteria for clinical evaluability. No participants were enrolled in the Dalbavancin arm. Due to early termination of the study, 1 participant did not have clinical outcomes determined, but did have a termination visit.

ArmMeasureValue (NUMBER)
Standard of CarePercentage of Participants With Clinical Outcome of Success by Pathogen at Day 84 in the CE Population100 percentage of participants
Secondary

Percentage of Participants With Clinical Outcome of Success by Pathogen at Day 84 in the ITT Population

Clinical outcome was either success or failure. Success was defined as resolution of clinical signs and symptoms of complicated bacteremia or infective endocarditis (IE) such that no additional antibiotic therapy was required.

Time frame: Day 84

Population: ITT Population included all randomized participants regardless of whether or not study treatment was received. No participants were enrolled in the Dalbavancin arm. Due to early termination of the study, 1 participant did not have clinical outcomes determined, but did have an early termination visit.

ArmMeasureValue (NUMBER)
Standard of CarePercentage of Participants With Clinical Outcome of Success by Pathogen at Day 84 in the ITT Population100 percentage of participants
Secondary

Percentage of Participants With Microbiological Success by Pathogen at Day 42 in the CE Population

Microbiological outcome could be either microbiologic success or microbiologic failure. Microbiologic Success was defined as no further growth of baseline pathogen from blood cultures.

Time frame: Day 42

Population: CE Population included all participants in the mITT Population (all in the ITT who received ≥1 dose of study treatment) who met criteria for clinical evaluability. No participants were enrolled in the Dalbavancin arm. Due to early termination of the study, 1 participant did not have clinical outcomes determined, but did have a termination visit.

ArmMeasureValue (NUMBER)
Standard of CarePercentage of Participants With Microbiological Success by Pathogen at Day 42 in the CE Population100 percentage of participants
Secondary

Percentage of Participants With Microbiological Success by Pathogen at Day 42 in the ITT Population

Microbiological outcome could be either microbiologic success or microbiologic failure. Microbiologic Success was defined as no further growth of baseline pathogen from blood cultures.

Time frame: Day 42

Population: ITT Population included all randomized participants regardless of whether or not study treatment was received. No participants were enrolled in the Dalbavancin arm. Due to early termination of the study, 1 participant did not have clinical outcomes determined, but did have an early termination visit.

ArmMeasureValue (NUMBER)
Standard of CarePercentage of Participants With Microbiological Success by Pathogen at Day 42 in the ITT Population100 percentage of participants
Secondary

Percentage of Participants With Microbiological Success by Pathogen at Day 84 in the CE Population

Microbiological outcome could be either microbiologic success or microbiologic failure. Microbiologic Success was defined as no further growth of baseline pathogen from blood cultures.

Time frame: Day 84

Population: CE Population included all participants in the mITT Population (all in the ITT who received ≥1 dose of study treatment) who met criteria for clinical evaluability. No participants were enrolled in the Dalbavancin arm. Due to early termination of the study, 1 participant did not have clinical outcomes determined, but did have a termination visit.

ArmMeasureValue (NUMBER)
Standard of CarePercentage of Participants With Microbiological Success by Pathogen at Day 84 in the CE Population100 percentage of participants
Secondary

Percentage of Participants With Microbiological Success by Pathogen at Day 84 in the ITT Population

Microbiological outcome could be either microbiologic success or microbiologic failure. Microbiologic Success was defined as no further growth of baseline pathogen from blood cultures.

Time frame: Day 84

Population: ITT Population included all randomized participants regardless of whether or not study treatment was received. No participants were enrolled in the Dalbavancin arm. Due to early termination of the study, 1 participant did not have clinical outcomes determined, but did have an early termination visit.

ArmMeasureValue (NUMBER)
Standard of CarePercentage of Participants With Microbiological Success by Pathogen at Day 84 in the ITT Population100 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026