Trial Outcomes & Findings for Safety and Efficacy Study of Oxazolidinone to Treat Pneumonia (NCT NCT00640926)

NCT ID: NCT00640926

Last Updated: 2016-05-12

Results Overview

Patients were considered cured if all systemic signs and symptoms of CAP present at screening were improved or resolved and no further antibiotic therapy was necessary. In addition, the follow-up chest X-ray was to be either stable or improved.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

158 participants

Primary outcome timeframe

Study days 14-38

Results posted on

2016-05-12

Participant Flow

This study targeted adult patients with mild to moderate (i.e., CURB-65 score of 0 or 1) community-acquired pneumonia (CAP).

Participant milestones

Participant milestones
Measure
Radezolid 300 mg PO Daily (QD)
Radezolid 450 mg PO Daily (QD)
Radezolid 450 mg PO Twice Daily (BID)
Overall Study
STARTED
53
52
53
Overall Study
COMPLETED
45
46
45
Overall Study
NOT COMPLETED
8
6
8

Reasons for withdrawal

Reasons for withdrawal
Measure
Radezolid 300 mg PO Daily (QD)
Radezolid 450 mg PO Daily (QD)
Radezolid 450 mg PO Twice Daily (BID)
Overall Study
Adverse Event
2
3
2
Overall Study
Lack of Efficacy
0
2
1
Overall Study
Protocol Violation
2
0
2
Overall Study
Lost to Follow-up
3
1
2
Overall Study
Withdrawal by Subject
1
0
1

Baseline Characteristics

Safety and Efficacy Study of Oxazolidinone to Treat Pneumonia

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Radezolid 300 mg PO Daily (QD)
n=53 Participants
Radezolid 450 mg PO Daily (QD)
n=52 Participants
Radezolid 450 mg PO Twice Daily (BID)
n=53 Participants
Total
n=158 Participants
Total of all reporting groups
Age, Continuous
49.6 years
STANDARD_DEVIATION 18.37 • n=5 Participants
50.4 years
STANDARD_DEVIATION 14.55 • n=7 Participants
52.1 years
STANDARD_DEVIATION 15.61 • n=5 Participants
50.7 years
STANDARD_DEVIATION 16.20 • n=4 Participants
Sex: Female, Male
Female
22 Participants
n=5 Participants
17 Participants
n=7 Participants
22 Participants
n=5 Participants
61 Participants
n=4 Participants
Sex: Female, Male
Male
31 Participants
n=5 Participants
35 Participants
n=7 Participants
31 Participants
n=5 Participants
97 Participants
n=4 Participants
Region of Enrollment
United States
24 participants
n=5 Participants
21 participants
n=7 Participants
17 participants
n=5 Participants
62 participants
n=4 Participants
Region of Enrollment
Canada
14 participants
n=5 Participants
16 participants
n=7 Participants
21 participants
n=5 Participants
51 participants
n=4 Participants
Region of Enrollment
Russian Federation
15 participants
n=5 Participants
15 participants
n=7 Participants
15 participants
n=5 Participants
45 participants
n=4 Participants

PRIMARY outcome

Timeframe: Study days 14-38

Population: Clinically evaluable patients were those that had a diagnosis of CAP, as defined in the inclusion criteria; who received an appropriate course of therapy; who did not receive any other concomitant antibiotics, and who returned for a TOC visit in the appropriate time frame.

Patients were considered cured if all systemic signs and symptoms of CAP present at screening were improved or resolved and no further antibiotic therapy was necessary. In addition, the follow-up chest X-ray was to be either stable or improved.

Outcome measures

Outcome measures
Measure
Radezolid 300 mg PO Daily (QD)
n=37 Participants
Radezolid 450 mg PO Daily (QD)
n=44 Participants
Radezolid 450 mg PO Twice Daily (BID)
n=41 Participants
Clinical Cure in the Clinically Evaluable (CE) Population at Test of Cure (TOC)
34 Participants
37 Participants
32 Participants

OTHER_PRE_SPECIFIED outcome

Timeframe: Study Days 14-38

Population: Microbiologically evaluable (ME) patients were defined as CE patients with evidence of 1 or more of 7 key CAP pathogens: S. pneumoniae, H. influenzae, M. catarrhalis, M. pneumoniae, C. pneumoniae, and L. pneumophila.

The number of ME patients (defined as those CE patients with evidence of 1 or more of 7 key CAP pathogens: S. pneumoniae, H. influenzae, M. catarrhalis, M. pneumoniae, C. pneumoniae, and L. pneumophila) with a microbiologic response of eradicated, i.e. either documented eradication of the baseline pathogen(s), or presumed eradication in the setting of clinical cure with no material to culture.

Outcome measures

Outcome measures
Measure
Radezolid 300 mg PO Daily (QD)
n=17 Participants
Radezolid 450 mg PO Daily (QD)
n=26 Participants
Radezolid 450 mg PO Twice Daily (BID)
n=26 Participants
Per Patient Microbiological Response of Eradicated in the Microbiologically Evaluable (ME) Population at Test of Cure (TOC)
16 Participants
20 Participants
18 Participants

Adverse Events

Radezolid 300 mg PO Daily (QD)

Serious events: 3 serious events
Other events: 11 other events
Deaths: 0 deaths

Radezolid 450 mg PO Daily (QD)

Serious events: 2 serious events
Other events: 17 other events
Deaths: 0 deaths

Radezolid 450 mg PO Twice Daily (BID)

Serious events: 5 serious events
Other events: 28 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Radezolid 300 mg PO Daily (QD)
n=53 participants at risk
Radezolid 450 mg PO Daily (QD)
n=52 participants at risk
Radezolid 450 mg PO Twice Daily (BID)
n=53 participants at risk
Renal and urinary disorders
Acute renal failure
0.00%
0/53 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
1.9%
1/52 • Number of events 1 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
0.00%
0/53 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Adenocarcinoma of the lung
0.00%
0/53 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
0.00%
0/52 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
1.9%
1/53 • Number of events 1 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
Cardiac disorders
Atrial fibrillation
0.00%
0/53 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
0.00%
0/52 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
1.9%
1/53 • Number of events 1 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
Psychiatric disorders
Confusional state
1.9%
1/53 • Number of events 1 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
0.00%
0/52 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
0.00%
0/53 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
Metabolism and nutrition disorders
Dehyrdation
1.9%
1/53 • Number of events 1 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
0.00%
0/52 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
0.00%
0/53 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
Metabolism and nutrition disorders
Diabetes mellitus
0.00%
0/53 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
0.00%
0/52 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
1.9%
1/53 • Number of events 1 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
Investigations
Hepatic enzyme abnormal
1.9%
1/53 • Number of events 1 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
0.00%
0/52 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
0.00%
0/53 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
Gastrointestinal disorders
Peptic ulcer perforation
0.00%
0/53 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
0.00%
0/52 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
1.9%
1/53 • Number of events 1 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
Respiratory, thoracic and mediastinal disorders
Pleural effusion
1.9%
1/53 • Number of events 1 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
1.9%
1/52 • Number of events 1 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
0.00%
0/53 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
Infections and infestations
Pneumocystis jiroveci pneumonia
1.9%
1/53 • Number of events 1 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
0.00%
0/52 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
0.00%
0/53 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
Infections and infestations
Pneumonia
0.00%
0/53 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
0.00%
0/52 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
1.9%
1/53 • Number of events 1 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
Respiratory, thoracic and mediastinal disorders
Pulmonary embolism
0.00%
0/53 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
0.00%
0/52 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
1.9%
1/53 • Number of events 1 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
Infections and infestations
Tuberculosis
0.00%
0/53 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
0.00%
0/52 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
1.9%
1/53 • Number of events 1 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.

Other adverse events

Other adverse events
Measure
Radezolid 300 mg PO Daily (QD)
n=53 participants at risk
Radezolid 450 mg PO Daily (QD)
n=52 participants at risk
Radezolid 450 mg PO Twice Daily (BID)
n=53 participants at risk
Gastrointestinal disorders
Diarrhea
11.3%
6/53 • Number of events 6 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
19.2%
10/52 • Number of events 10 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
35.8%
19/53 • Number of events 19 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
Nervous system disorders
Dizziness
0.00%
0/53 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
1.9%
1/52 • Number of events 1 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
5.7%
3/53 • Number of events 3 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
Infections and infestations
Fungal infection
5.7%
3/53 • Number of events 3 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
0.00%
0/52 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
3.8%
2/53 • Number of events 2 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
Nervous system disorders
Headache
1.9%
1/53 • Number of events 1 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
5.8%
3/52 • Number of events 3 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
3.8%
2/53 • Number of events 2 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
Infections and infestations
Pneumonia
1.9%
1/53 • Number of events 1 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
5.8%
3/52 • Number of events 3 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.
3.8%
2/53 • Number of events 2 • All adverse events (AEs) were to be reported from the signing of the informed consent until the test of cure (TOC) visit.

Additional Information

Sue Cammarata, MD

Melinta Therapeutics, Inc.

Phone: (203) 624-5606

Results disclosure agreements

  • Principal investigator is a sponsor employee The sponsor retains publication rights.
  • Publication restrictions are in place

Restriction type: OTHER