Trial Outcomes & Findings for Study Comparing the Safety and Efficacy of Intravenous CXA-201 and Intravenous Levofloxacin in Complicated Urinary Tract Infection, Including Pyelonephritis (NCT NCT01345929)

NCT ID: NCT01345929

Last Updated: 2018-10-25

Results Overview

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

558 participants

Primary outcome timeframe

Test of Cure Visit (7 Days [± 2 days] after completion of study drug administration)

Results posted on

2018-10-25

Participant Flow

Two P3 protocols were initiated (NCT01345929 and NCT01345955) subsequently, Cubist and FDA agreed that integrated data from the 2 protocols could be analyzed and reported in a single Clinical Study Report. A total of 1083 subjects were randomized to both arms, 558 to NCT01345929 and 525 to NCT01345955. Of these, 552 and 516 received treatment.

Participant milestones

Participant milestones
Measure
CXA-201 as Treatment for cUTI
CXA-201 IV infusion (1500mg q8) for 7 days CXA-201: CXA-201 IV infusion (1500mg q8) for 7 days Of the 1083 subjects in the integrated analysis set, 533 received CXA.
Levofloxacin as Treatment for cUTI
Levofloxacin IV infusion (750mg qd) for 7 days Levofloxacin: Levofloxacin IV infusion (750mg qd) for 7 days Of the 1083 subjects in the integrated analysis set, 535 received levofloxacin.
Overall Study
STARTED
533
535
Overall Study
COMPLETED
512
516
Overall Study
NOT COMPLETED
21
19

Reasons for withdrawal

Reasons for withdrawal
Measure
CXA-201 as Treatment for cUTI
CXA-201 IV infusion (1500mg q8) for 7 days CXA-201: CXA-201 IV infusion (1500mg q8) for 7 days Of the 1083 subjects in the integrated analysis set, 533 received CXA.
Levofloxacin as Treatment for cUTI
Levofloxacin IV infusion (750mg qd) for 7 days Levofloxacin: Levofloxacin IV infusion (750mg qd) for 7 days Of the 1083 subjects in the integrated analysis set, 535 received levofloxacin.
Overall Study
Withdrawal by Subject
9
8
Overall Study
Lost to Follow-up
9
9
Overall Study
Adverse Event
0
1
Overall Study
Didn't meet eligibility criteria
2
0
Overall Study
40,000 CFU/ML
1
0
Overall Study
Patient withdrawal
0
1

Baseline Characteristics

Study Comparing the Safety and Efficacy of Intravenous CXA-201 and Intravenous Levofloxacin in Complicated Urinary Tract Infection, Including Pyelonephritis

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
CXA-201 as Treatment for cUTI
n=533 Participants
CXA-201 IV infusion (1500mg q8) for 7 days CXA-201: CXA-201 IV infusion (1500mg q8) for 7 days
Levofloxacin as Treatment for cUTI
n=535 Participants
Levofloxacin IV infusion (750mg qd) for 7 days Levofloxacin: Levofloxacin IV infusion (750mg qd) for 7 days
Total
n=1068 Participants
Total of all reporting groups
Age, Continuous
49.7 years
STANDARD_DEVIATION 19.52 • n=5 Participants
48.6 years
STANDARD_DEVIATION 20.05 • n=7 Participants
49.1 years
STANDARD_DEVIATION 19.79 • n=5 Participants
Sex: Female, Male
Female
374 Participants
n=5 Participants
380 Participants
n=7 Participants
754 Participants
n=5 Participants
Sex: Female, Male
Male
159 Participants
n=5 Participants
155 Participants
n=7 Participants
314 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Test of Cure Visit (7 Days [± 2 days] after completion of study drug administration)

Population: mMITT: Treated subjects, with baseline pathogen.

Outcome measures

Outcome measures
Measure
CXA-201 as Treatment for cUTI
n=398 Participants
CXA-201 IV infusion (1500mg q8) for 7 days CXA-201: CXA-201 IV infusion (1500mg q8) for 7 days
Levofloxacin as Treatment for cUTI
n=402 Participants
Levofloxacin IV infusion (750mg qd) for 7 days Levofloxacin: Levofloxacin IV infusion (750mg qd) for 7 days
The Percentage of Subjects Who Have Both a Per-subject Microbiological Outcome of Eradication and a Clinical Outcome of Cure at the Test of Cure (TOC) Visit in the Microbiological Modified ITT (mMITT) Population
76.9 percentage of subjects
68.4 percentage of subjects

SECONDARY outcome

Timeframe: Test of Cure Visit (7 Days [± 2 days] after completion of study drug administration)

Population: ME: Treated patients, with baseline pathogen, complied with protocol.

Outcome measures

Outcome measures
Measure
CXA-201 as Treatment for cUTI
n=341 Participants
CXA-201 IV infusion (1500mg q8) for 7 days CXA-201: CXA-201 IV infusion (1500mg q8) for 7 days
Levofloxacin as Treatment for cUTI
n=353 Participants
Levofloxacin IV infusion (750mg qd) for 7 days Levofloxacin: Levofloxacin IV infusion (750mg qd) for 7 days
The Percentage of Subjects Who Have Both a Per-subject Microbiological Outcome of Eradication and a Clinical Outcome of Cure at the TOC Visit in the Microbiologically Evaluable (ME) Population.
83.3 percentage of subjects
75.4 percentage of subjects

Adverse Events

CXA-201 as Treatment for cUTI

Serious events: 15 serious events
Other events: 108 other events
Deaths: 0 deaths

Levofloxacin as Treatment for cUTI

Serious events: 18 serious events
Other events: 101 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
CXA-201 as Treatment for cUTI
n=533 participants at risk
CXA-201 IV infusion (1500mg q8) for 7 days CXA-201: CXA-201 IV infusion (1500mg q8) for 7 days
Levofloxacin as Treatment for cUTI
n=535 participants at risk
Levofloxacin IV infusion (750mg qd) for 7 days Levofloxacin: Levofloxacin IV infusion (750mg qd) for 7 days
Infections and infestations
Urinary tract infection
0.56%
3/533
0.37%
2/535
Infections and infestations
Pneumonia
0.38%
2/533
0.00%
0/535
Infections and infestations
Urosepsis
0.38%
2/533
0.00%
0/535
Infections and infestations
Abdominal abscess
0.19%
1/533
0.00%
0/535
Infections and infestations
Clostridium difficile colitis
0.19%
1/533
0.00%
0/535
Infections and infestations
Diverticulitis
0.19%
1/533
0.00%
0/535
Infections and infestations
Liver abscess
0.19%
1/533
0.00%
0/535
Infections and infestations
Pseudomembranous colitis
0.19%
1/533
0.00%
0/535
Infections and infestations
Pyelonephritis
0.00%
0/533
1.1%
6/535
Infections and infestations
Emphysematous pyelonephritis
0.00%
0/533
0.19%
1/535
Infections and infestations
Escherichia sepsis
0.00%
0/533
0.19%
1/535
Infections and infestations
Pyelonephritis acute
0.00%
0/533
0.19%
1/535
Infections and infestations
Sepsis
0.00%
0/533
0.19%
1/535
Renal and urinary disorders
Calculus urinary
0.19%
1/533
0.00%
0/535
Renal and urinary disorders
Renal colic
0.19%
1/533
0.00%
0/535
Renal and urinary disorders
Urinary retention
0.19%
1/533
0.00%
0/535
Renal and urinary disorders
Renal tubular acidosis
0.00%
0/533
0.19%
1/535
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Bladder cancer
0.38%
2/533
0.00%
0/535
Eye disorders
Diabetic retinopaty
0.19%
1/533
0.00%
0/535
Cardiac disorders
Angina unstable
0.00%
0/533
0.19%
1/535
Cardiac disorders
Cardiac failure congestive
0.00%
0/533
0.19%
1/535
Gastrointestinal disorders
Gastric ulcer
0.00%
0/533
0.19%
1/535
General disorders
Hernia obstructive
0.00%
0/533
0.19%
1/535
Immune system disorders
Contrast media allergy
0.00%
0/533
0.19%
1/535
Injury, poisoning and procedural complications
Pneumothorax traumatic
0.00%
0/533
0.19%
1/535
Nervous system disorders
Transient ischaemic attack
0.00%
0/533
0.19%
1/535
Respiratory, thoracic and mediastinal disorders
Chronic obstructive pulmonary disease
0.00%
0/533
0.19%
1/535

Other adverse events

Other adverse events
Measure
CXA-201 as Treatment for cUTI
n=533 participants at risk
CXA-201 IV infusion (1500mg q8) for 7 days CXA-201: CXA-201 IV infusion (1500mg q8) for 7 days
Levofloxacin as Treatment for cUTI
n=535 participants at risk
Levofloxacin IV infusion (750mg qd) for 7 days Levofloxacin: Levofloxacin IV infusion (750mg qd) for 7 days
Gastrointestinal disorders
Abdominal pain upper
1.3%
7/533
1.1%
6/535
Gastrointestinal disorders
Constipation
3.9%
21/533
3.2%
17/535
Gastrointestinal disorders
Diarrhoea
1.9%
10/533
4.3%
23/535
Gastrointestinal disorders
Nausea
2.8%
15/533
1.7%
9/535
Gastrointestinal disorders
Vomiting
1.1%
6/533
1.1%
6/535
General disorders
Pyrexia
1.5%
8/533
0.75%
4/535
Infections and infestations
Urinary tract infection
1.1%
6/533
1.3%
7/535
Investigations
Alanine aminotransferase increased
1.7%
9/533
0.93%
5/535
Investigations
Aspartate aminotransferase increased
1.7%
9/533
0.93%
5/535
Musculoskeletal and connective tissue disorders
Arthralgia
0.19%
1/533
1.1%
6/535
Musculoskeletal and connective tissue disorders
Myalgia
1.1%
6/533
0.75%
4/535
Nervous system disorders
Dizziness
1.1%
6/533
0.19%
1/535
Nervous system disorders
Headache
5.8%
31/533
4.9%
26/535
Psychiatric disorders
Insomnia
1.3%
7/533
2.6%
14/535
Vascular disorders
Hypertension
3.0%
16/533
1.3%
7/535

Additional Information

Dr. Obi Umeh, Vice President Global Medical Sciences

Cubist Pharmaceuticals, Inc.

Phone: 781-860-8415

Results disclosure agreements

  • Principal investigator is a sponsor employee The investigator(s) must undertake not to submit any part of the data from this protocol for publication without the prior consent of Cubist Pharmaceuticals, Inc.
  • Publication restrictions are in place

Restriction type: OTHER