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Extension Study of Liposomal Amikacin for Inhalation in Cystic Fibrosis (CF) Patients With Chronic Pseudomonas Aeruginosa (Pa) Infection

Long Term Safety and Tolerability Study of Open-Label Liposomal Amikacin for Inhalation (ARIKACE™) in Cystic Fibrosis Patients With Chronic Infection Due to Pseudomonas Aeruginosa

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01316276
Enrollment
206
Registered
2011-03-16
Start date
2012-10-05
Completion date
2015-07-16
Last updated
2020-06-17

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

Conditions

Cystic Fibrosis

Keywords

Cystic Fibrosis, Respiratory Infections, Pulmonary Cystic Fibrosis, cystic fibrosis transmembrane conductance regulator (CFTR), Anti-bacterial Agent, Arikayce, ALIS, LAI

Brief summary

The purpose of this study is to evaluate the long term safety and tolerability of Liposomal Amikacin for Inhalation (LAI) 590 mg once daily (QD) in Cystic Fibrosis patients with chronic infection due to pseudomonas aeruginosa. This long-term, open-label, multi-cycle extension study enrolled subjects who had successfully completed study TR02-108, were compliant with the study protocol, and did not meet any of the listed study discontinuation criteria. The safety and tolerability of LAI were evaluated for up to approximately 2 years.

Detailed description

This was a long-term, open-label, multi-cycle extension study for patients in the Phase 3 study TR02-108 and TR02-109 who had successfully completed the 168-day study period and met study safety criteria. As this was a safety and tolerability long-term extension study, no sample size calculations were performed. All patients who completed TR02-108, were compliant with the study protocol, and did not meet any of the criteria listed for study discontinuation (safety reasons or non-compliance) were able to participate in this open-label study. The end of study visit for TR02-108 was to serve as the baseline study visit (Day 1) for TR02-110 if the patient had signed the informed consent at least 4 days prior to the end of study visit and met all safety criteria for TR02-110. If the end of study visit was not used as the baseline visit, a separate baseline visit (Day 1) was to be performed within 14 days of completing TR02-108. Patients were to receive a delivered dose of 590 mg LAI QD via a PARI Investigational eFlow® Nebulizer System (eFlow®) for 28 days followed by a 28-day off-treatment period. This cycle (28 days on treatment, 28 days off treatment) was to be repeated for up to 12 cycles. The study was implemented as 2 consecutive extension periods, each consisting of 48 weeks (approximately 12 months). Patients were re-consented for the second extension period at the completion of the first extension period. The total study period was up to 96 weeks (approximately 2 years). During the first 28 days of treatment, patients were evaluated at the study site bi-weekly for safety, tolerability and efficacy. Thereafter, for the duration of the study, patients were evaluated at the study site on the first and last days of dosing during the on-treatment periods. During the study, starting with the off-treatment period of Cycle 1, patients were contacted by telephone once during every 28-day period to assess safety. A final site visit occurred 28 days after last dose of LAI. Arikace™, Arikayce™,Liposomal Amikacin for Inhalation (LAI), and Amikacin Liposome Inhalation Suspension (ALIS) may be used interchangeably throughout this study and other studies evaluating amikacin liposome inhalation suspension.

Interventions

* Liposomal amikacin for inhalation is provided as a sterile aqueous liposomal dispersion for inhalation via nebulization. * 590 mg of liposomal amikacin for inhalation is administered once daily using the PARI Investigational eFlow® Nebulizer. * Administration time is approximately 13 minutes. * Liposomal amikacin for inhalation will be administered in two consecutive extension periods, each consisting of 6 cycles for a total of 12 cycles. Each cycle consists of 28 days on-treatment followed by 28 days off-treatment.

Sponsors

Insmed Incorporated
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

Key Inclusion Criteria: * Written informed consent or assent * Subject has completed study TR02-108, and has been compliant with the study protocol * Women of childbearing potential must agree to use reliable methods of contraception for the duration of the study Key

Exclusion criteria

* Subject met any of the listed criteria for study drug discontinuation in protocol TR02-108. * Abnormal laboratory assessments including LFT (≥ 3× upper limit of normal \[ULN\]), serum creatinine (\> 2× ULN) and absolute neutrophil count \[ANC\] (\< 1000). * Psychotic, addictive or other disorder limiting the ability to provide informed consent or to comply with study requirements. * History of alcohol, medication or illicit drug abuse within the 6 months prior to consent. * Smoking tobacco or any substance within 6 months prior to consent or anticipated inability to refrain from smoking throughout the study

Design outcomes

Primary

MeasureTime frameDescription
Change in Serum Creatinine Throughout the StudyBaseline, Day 337 and Day 672* Common Terminology Criteria for Adverse Events (CTCAE) Grade 1: \> ULN-1.5 × ULN * CTCAE Grade 2: \> 1.5 × ULN to 3.0 x ULN
Body Temperature: Change From Baseline at Day 672From Study Initiation up to Day 672Body temperature was recorded at every visit as per standard practice at each investigational site.
Oxygen Saturation: Change From Baseline at Day 672From Study Initiation up to Day 672Change in oxygen saturation as measured with pulse oximetry was performed via finger probes placed on the extremity opposite arterial lines and noninvasive blood pressure monitoring devices so that pulsatile flow was not interrupted.
Minimum Inhibitory Concentrations (MICs) for Pseudomonas Aeruginosa (Pa) and Burkholderia Species From Day 1 to Days 169, 337, 505 and 672Day 1, Day 169, Day 337, Day 505 and Day 672Sputum was cultured for quantitative microbiological evaluation of Pa and Burkholderia species in designated regional central microbiology laboratories. A standard microbiology protocol was used for Pa culture and identification for each morphologically distinct Pa phenotype. Although planned in the Statistical Analysis Plan (SAP), MICs of amikacin Burkholderia species were not determined due to the small number of isolates with Burkholderia. In addition, susceptibility testing of isolates of Pa and Burkholderia species against a panel of commonly used antipseudomonal antibiotics was planned but was not performed. The results of the following analyses for Pa isolates are presented. * Frequency of MIC of Amikacin * Frequency of MIC of Tobramycin MIC50: lowest concentration of the antibiotic at which 50 % of the isolates were inhibited.
Evaluation of AudiologyDay 337 and Day 672Hearing was evaluated using air conduction \[AC\]. Bone conduction was required if the AC testing demonstrated a decrease of \>20 decibels \[dB\]. Hearing loss was categorized using Common Terminology Criteria for Adverse Events as follows: GRADE 1 (best): Adults \[A\] on a Monitoring Program \[MP\]: Threshold shift of 15-25 dB; Pediatric \[P\]: Threshold shift \>20 dB at 8 kilohertz (kHz). GRADE 2: \[A\] on a MP: Threshold shift of \>25 dB; \[A\] not enrolled in MP: hearing loss; hearing aid/intervention not indicated; \[P\]: Threshold shift \>20 dB at 4 kHz and above. GRADE 3: \[A\] enrolled in MP: Threshold shift of \>25 dB; therapeutic intervention indicated; \[A\]: Not enrolled in MP: hearing aid/intervention; \[P\]: therapeutic intervention, including hearing aids: Threshold shift \>20 dB at 3 kHz and above; additional speech-language related services. GRADE 4 (worst): \[A\]: Profound bilateral hearing loss; non-serviceable hearing; \[P\]: cochlear implant & additional speech-language related services.
Treatment Emergent Adverse Events (TEAEs) up to Day 672From Study Initiation up to Day 672Treatment emergent adverse events including serious adverse events (SAE) and adverse events (AE) leading to permanent discontinuation of study drug
Laboratory Abnormalities up to Day 672Baseline, Day 377 and Day 672* Number of Subjects with Grade 3 or Higher Abnormalities in Clinical Laboratory Values * Number of Subjects with Grade 3 or Higher Hematology Laboratory Value Abnormalities * Number of Subjects with Grade 3 or Higher Chemistry Laboratory Value Abnormalities
Acute Tolerability as Measured by Pulmonary Function Test (PFT) Changes Pre to Post DoseDay 1, Day 84, Day 196, Day 281, Day 337, Day 449, Day 532 and Day 644Number of Subjects with a \>15% in Decline in Forced Expiratory Volume in 1 Second (FEV1) From Predose to Postdose
Respiratory Rate: Change From Baseline to Day 672From Study Initiation up to Day 672Respiratory rate was recorded at every visit as per standard practice at each investigational site.
Heart Rate: Change From Baseline From Day 672From Study Initiation up to Day 672Pulse rate (after at least 5-minute rest) was recorded at every visit as per standard practice at each investigational site.
Systolic BP: Change From Baseline at Day 672From Study Initiation up to Day 672Sitting blood pressure was recorded at every visit as per standard practice at each investigational site.
Diastolic BP: Change From Baseline at Day 672From Study Initiation up to Day 672Sitting blood pressure was recorded at every visit as per standard practice at each investigational site.

Secondary

MeasureTime frameDescription
Number of Subjects Experiencing a Protocol Defined Pulmonary ExacerbationFrom Study Initiation up to Day 700For number of subjects to first protocol-defined pulmonary exacerbation, follow-up time began at the first dose of study drug (Day 1) and ended no later than Day 700 (28-day follow up).
Number of Subjects Initiating Treatment.From Study Initiation up to Day 672The number of subjects initiating antipseudomonal therapy for protocol-defined pulmonary exacerbation confirmed by the investigator, and for investigator-defined pulmonary exacerbation were summarized. The data presented below is the Frequency of Systemic or Inhaled Antipseudomonal Therapy for Protocol-defined Pulmonary Exacerbations Confirmed by Investigator \- Time to First Use of Any New Antibiotic Treatment, Censoring at Date of Last Contact
Number of Participants Who Received Antipseudomonal Antibiotic Treatment for Protocol Defined Pulmonary ExacerbationFrom Study Initiation up to Day 700
Percent Change in FEV1 Throughout the StudyBaseline, Day 337 and Day 672Percent Change From Baseline in Predose FEV1

Countries

Austria, Belgium, Bulgaria, Canada, Denmark, France, Germany, Greece, Hungary, Ireland, Italy, Netherlands, Poland, Serbia, Slovakia, Spain, United Kingdom

Participant flow

Recruitment details

Study TR02-110 did not include any patients from Study TR02-109 since that study never enrolled patients.

Participants by arm

ArmCount
LAI 590 mg QD
590 mg LAI QD via a PARI Investigational eFlow® Nebulizer System (eFlow®) for 28 days followed by a 28-day off-treatment period. This cycle (28 days on treatment, 28 days off treatment) was to be repeated for up to 12 cycles, divided into 2 periods of 6 cycles each (approximately 12 months each). Liposomal amikacin for inhalation: - Liposomal amikacin for inhalation is provided as a sterile aqueous liposomal dispersion for inhalation via nebulization. * 590 mg of liposomal amikacin for inhalation is administered once daily using the PARI Investigational eFlow® Nebulizer. * Administration time is approximately 13 minutes. * Liposomal amikacin for inhalation will be administered in two consecutive extension periods, each consisting of 6 cycles for a total of 12 cycles. Each cycle consists of 28 days on-treatment followed by 28 days off-treatment.
206
Total206

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event19
Overall StudyDeath1
Overall StudyLost to Follow-up1
Overall StudyOther22
Overall StudyWithdrawal of consent24

Baseline characteristics

CharacteristicLAI 590 mg QD
Age, Continuous
Baseline age (years)
21.0 years
STANDARD_DEVIATION 9.73
Age, Customized
Age
Age group at baseline: >12 to 18 years
62 Participants
Age, Customized
Age
Age group at baseline: >18 years
107 Participants
Age, Customized
Age
Age group at baseline: 6 to 12 years
37 Participants
Geographic region
Central Europe / Eastern Europe
107 Participants
Geographic region
Western Europe / North America
99 Participants
Race/Ethnicity, Customized
Ethnicity
African
1 Participants
Race/Ethnicity, Customized
Ethnicity
Caucasian (not of Hispanic origin)
200 Participants
Race/Ethnicity, Customized
Ethnicity
Hispanic
5 Participants
Sex: Female, Male
Female
103 Participants
Sex: Female, Male
Male
103 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
1 / 206
other
Total, other adverse events
167 / 206
serious
Total, serious adverse events
92 / 206

Outcome results

Primary

Acute Tolerability as Measured by Pulmonary Function Test (PFT) Changes Pre to Post Dose

Number of Subjects with a \>15% in Decline in Forced Expiratory Volume in 1 Second (FEV1) From Predose to Postdose

Time frame: Day 1, Day 84, Day 196, Day 281, Day 337, Day 449, Day 532 and Day 644

Population: Safety Population~Patients with missing values were excluded.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
LAI 590 mg QDAcute Tolerability as Measured by Pulmonary Function Test (PFT) Changes Pre to Post DoseDay 16 Participants
LAI 590 mg QDAcute Tolerability as Measured by Pulmonary Function Test (PFT) Changes Pre to Post DoseDay 846 Participants
LAI 590 mg QDAcute Tolerability as Measured by Pulmonary Function Test (PFT) Changes Pre to Post DoseDay 1961 Participants
LAI 590 mg QDAcute Tolerability as Measured by Pulmonary Function Test (PFT) Changes Pre to Post DoseDay 2815 Participants
LAI 590 mg QDAcute Tolerability as Measured by Pulmonary Function Test (PFT) Changes Pre to Post DoseDay 3375 Participants
LAI 590 mg QDAcute Tolerability as Measured by Pulmonary Function Test (PFT) Changes Pre to Post DoseDay 4496 Participants
LAI 590 mg QDAcute Tolerability as Measured by Pulmonary Function Test (PFT) Changes Pre to Post DoseDay 5322 Participants
LAI 590 mg QDAcute Tolerability as Measured by Pulmonary Function Test (PFT) Changes Pre to Post DoseDay 6443 Participants
Primary

Body Temperature: Change From Baseline at Day 672

Body temperature was recorded at every visit as per standard practice at each investigational site.

Time frame: From Study Initiation up to Day 672

Population: Safety Population Patients with missing data were excluded.

ArmMeasureValue (MEAN)Dispersion
LAI 590 mg QDBody Temperature: Change From Baseline at Day 6720.03 Degrees CelciusStandard Deviation 0.316
Primary

Change in Serum Creatinine Throughout the Study

* Common Terminology Criteria for Adverse Events (CTCAE) Grade 1: \> ULN-1.5 × ULN * CTCAE Grade 2: \> 1.5 × ULN to 3.0 x ULN

Time frame: Baseline, Day 337 and Day 672

Population: Safety Population

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
LAI 590 mg QDChange in Serum Creatinine Throughout the StudyCTCAE Grade 1: Baselineyes1 Participants
LAI 590 mg QDChange in Serum Creatinine Throughout the StudyCTCAE Grade 1: Baselineno205 Participants
LAI 590 mg QDChange in Serum Creatinine Throughout the StudyCTCAE Grade 1: Day 337/End of Study Year 1yes0 Participants
LAI 590 mg QDChange in Serum Creatinine Throughout the StudyCTCAE Grade 1: Day 337/End of Study Year 1no158 Participants
LAI 590 mg QDChange in Serum Creatinine Throughout the StudyCTCAE Grade 1: Day 672/End of Study Year 2yes0 Participants
LAI 590 mg QDChange in Serum Creatinine Throughout the StudyCTCAE Grade 1: Day 672/End of Study Year 2no131 Participants
LAI 590 mg QDChange in Serum Creatinine Throughout the StudyCTCAE Grade 2: Baselineyes0 Participants
LAI 590 mg QDChange in Serum Creatinine Throughout the StudyCTCAE Grade 2: Baselineno206 Participants
LAI 590 mg QDChange in Serum Creatinine Throughout the StudyCTCAE Grade 2: Day 337/End of Study Year 1yes0 Participants
LAI 590 mg QDChange in Serum Creatinine Throughout the StudyCTCAE Grade 2: Day 337/End of Study Year 1no158 Participants
LAI 590 mg QDChange in Serum Creatinine Throughout the StudyCTCAE Grade 2: Day 672/End of Study Year 2yes0 Participants
LAI 590 mg QDChange in Serum Creatinine Throughout the StudyCTCAE Grade 2: Day 672/End of Study Year 2no131 Participants
Primary

Diastolic BP: Change From Baseline at Day 672

Sitting blood pressure was recorded at every visit as per standard practice at each investigational site.

Time frame: From Study Initiation up to Day 672

Population: Safety Population Patients with missing data were excluded.

ArmMeasureValue (MEAN)Dispersion
LAI 590 mg QDDiastolic BP: Change From Baseline at Day 6721.5 mmHgStandard Deviation 9.16
Primary

Evaluation of Audiology

Hearing was evaluated using air conduction \[AC\]. Bone conduction was required if the AC testing demonstrated a decrease of \>20 decibels \[dB\]. Hearing loss was categorized using Common Terminology Criteria for Adverse Events as follows: GRADE 1 (best): Adults \[A\] on a Monitoring Program \[MP\]: Threshold shift of 15-25 dB; Pediatric \[P\]: Threshold shift \>20 dB at 8 kilohertz (kHz). GRADE 2: \[A\] on a MP: Threshold shift of \>25 dB; \[A\] not enrolled in MP: hearing loss; hearing aid/intervention not indicated; \[P\]: Threshold shift \>20 dB at 4 kHz and above. GRADE 3: \[A\] enrolled in MP: Threshold shift of \>25 dB; therapeutic intervention indicated; \[A\]: Not enrolled in MP: hearing aid/intervention; \[P\]: therapeutic intervention, including hearing aids: Threshold shift \>20 dB at 3 kHz and above; additional speech-language related services. GRADE 4 (worst): \[A\]: Profound bilateral hearing loss; non-serviceable hearing; \[P\]: cochlear implant & additional speech-language related services.

Time frame: Day 337 and Day 672

Population: Safety Population

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
LAI 590 mg QDEvaluation of AudiologyDay 337/End of Study Day 337Grade 30 Participants
LAI 590 mg QDEvaluation of AudiologyDay 337/End of Study Day 337None or minimal change133 Participants
LAI 590 mg QDEvaluation of AudiologyDay 337/End of Study Day 337Grade 12 Participants
LAI 590 mg QDEvaluation of AudiologyDay 337/End of Study Day 337Grade 20 Participants
LAI 590 mg QDEvaluation of AudiologyDay 337/End of Study Day 337Grade 40 Participants
LAI 590 mg QDEvaluation of AudiologyDay 337/End of Study Day 337Indeterminate26 Participants
LAI 590 mg QDEvaluation of AudiologyDay 337/End of Study Day 337Missing45 Participants
LAI 590 mg QDEvaluation of AudiologyDay 672/End of Study Day 672None or minimal change120 Participants
LAI 590 mg QDEvaluation of AudiologyDay 672/End of Study Day 672Grade 16 Participants
LAI 590 mg QDEvaluation of AudiologyDay 672/End of Study Day 672Grade 20 Participants
LAI 590 mg QDEvaluation of AudiologyDay 672/End of Study Day 672Grade 31 Participants
LAI 590 mg QDEvaluation of AudiologyDay 672/End of Study Day 672Grade 40 Participants
LAI 590 mg QDEvaluation of AudiologyDay 672/End of Study Day 672Indeterminate7 Participants
LAI 590 mg QDEvaluation of AudiologyDay 672/End of Study Day 672Missing72 Participants
Primary

Heart Rate: Change From Baseline From Day 672

Pulse rate (after at least 5-minute rest) was recorded at every visit as per standard practice at each investigational site.

Time frame: From Study Initiation up to Day 672

Population: Safety Population Patients with missing data were excluded.

ArmMeasureValue (MEAN)Dispersion
LAI 590 mg QDHeart Rate: Change From Baseline From Day 672-0.9 beats/minStandard Deviation 12.46
Primary

Laboratory Abnormalities up to Day 672

* Number of Subjects with Grade 3 or Higher Abnormalities in Clinical Laboratory Values * Number of Subjects with Grade 3 or Higher Hematology Laboratory Value Abnormalities * Number of Subjects with Grade 3 or Higher Chemistry Laboratory Value Abnormalities

Time frame: Baseline, Day 377 and Day 672

Population: Safety Population

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
LAI 590 mg QDLaboratory Abnormalities up to Day 672Lymphocytes (<0.5 × 109 /L)12 Participants
LAI 590 mg QDLaboratory Abnormalities up to Day 672Neutrophils (<2.0 × 109 /L)23 Participants
LAI 590 mg QDLaboratory Abnormalities up to Day 672Platelets (<192 × 109 /L)1 Participants
LAI 590 mg QDLaboratory Abnormalities up to Day 672Alanine aminotransferase (>5.0 × ULN)2 Participants
LAI 590 mg QDLaboratory Abnormalities up to Day 672Aspartate aminotransferase (>5.0 × ULN)1 Participants
LAI 590 mg QDLaboratory Abnormalities up to Day 672Baseline13 Participants
LAI 590 mg QDLaboratory Abnormalities up to Day 672Day 337/End of Study Year 18 Participants
LAI 590 mg QDLaboratory Abnormalities up to Day 672Day 672/End of Study Year 28 Participants
LAI 590 mg QDLaboratory Abnormalities up to Day 672Leukocytes (<2.0 × 109 /L)7 Participants
LAI 590 mg QDLaboratory Abnormalities up to Day 672Gamma-glutamyltransferase (>5.0 × ULN)2 Participants
LAI 590 mg QDLaboratory Abnormalities up to Day 672Indirect bilirubin (>3.0 × ULN)1 Participants
LAI 590 mg QDLaboratory Abnormalities up to Day 672Calcium (<2.1 mmol/L)1 Participants
LAI 590 mg QDLaboratory Abnormalities up to Day 672Serum glucose: >13.9 mmol/L14 Participants
LAI 590 mg QDLaboratory Abnormalities up to Day 672Serum glucose: < 2.2 mmol/L6 Participants
LAI 590 mg QDLaboratory Abnormalities up to Day 672Phosphate (<0.6 mmol/L)3 Participants
LAI 590 mg QDLaboratory Abnormalities up to Day 672Potassium: >6.0 mmol/L8 Participants
LAI 590 mg QDLaboratory Abnormalities up to Day 672Potassium: <3.6 mmol/L1 Participants
LAI 590 mg QDLaboratory Abnormalities up to Day 672Sodium: >155 mmol/L1 Participants
LAI 590 mg QDLaboratory Abnormalities up to Day 672Sodium: <130 mmol/L4 Participants
LAI 590 mg QDLaboratory Abnormalities up to Day 672Urate (> ULN with physiologic consequences)8 Participants
Primary

Minimum Inhibitory Concentrations (MICs) for Pseudomonas Aeruginosa (Pa) and Burkholderia Species From Day 1 to Days 169, 337, 505 and 672

Sputum was cultured for quantitative microbiological evaluation of Pa and Burkholderia species in designated regional central microbiology laboratories. A standard microbiology protocol was used for Pa culture and identification for each morphologically distinct Pa phenotype. Although planned in the Statistical Analysis Plan (SAP), MICs of amikacin Burkholderia species were not determined due to the small number of isolates with Burkholderia. In addition, susceptibility testing of isolates of Pa and Burkholderia species against a panel of commonly used antipseudomonal antibiotics was planned but was not performed. The results of the following analyses for Pa isolates are presented. * Frequency of MIC of Amikacin * Frequency of MIC of Tobramycin MIC50: lowest concentration of the antibiotic at which 50 % of the isolates were inhibited.

Time frame: Day 1, Day 169, Day 337, Day 505 and Day 672

Population: Safety Population~Patients with missing data were excluded.

ArmMeasureGroupValue (MEDIAN)
LAI 590 mg QDMinimum Inhibitory Concentrations (MICs) for Pseudomonas Aeruginosa (Pa) and Burkholderia Species From Day 1 to Days 169, 337, 505 and 672Amikacin MIC50: Day 33716.000 µg/mL
LAI 590 mg QDMinimum Inhibitory Concentrations (MICs) for Pseudomonas Aeruginosa (Pa) and Burkholderia Species From Day 1 to Days 169, 337, 505 and 672Amikacin MIC50: Day 116.000 µg/mL
LAI 590 mg QDMinimum Inhibitory Concentrations (MICs) for Pseudomonas Aeruginosa (Pa) and Burkholderia Species From Day 1 to Days 169, 337, 505 and 672Amikacin MIC50: Day 16916.000 µg/mL
LAI 590 mg QDMinimum Inhibitory Concentrations (MICs) for Pseudomonas Aeruginosa (Pa) and Burkholderia Species From Day 1 to Days 169, 337, 505 and 672Amikacin MIC50: Day 50516.000 µg/mL
LAI 590 mg QDMinimum Inhibitory Concentrations (MICs) for Pseudomonas Aeruginosa (Pa) and Burkholderia Species From Day 1 to Days 169, 337, 505 and 672Amikacin MIC50: Day 67216.000 µg/mL
LAI 590 mg QDMinimum Inhibitory Concentrations (MICs) for Pseudomonas Aeruginosa (Pa) and Burkholderia Species From Day 1 to Days 169, 337, 505 and 672Tobramycin MIC50: Day 12.000 µg/mL
LAI 590 mg QDMinimum Inhibitory Concentrations (MICs) for Pseudomonas Aeruginosa (Pa) and Burkholderia Species From Day 1 to Days 169, 337, 505 and 672Tobramycin MIC50: Day 1692.000 µg/mL
LAI 590 mg QDMinimum Inhibitory Concentrations (MICs) for Pseudomonas Aeruginosa (Pa) and Burkholderia Species From Day 1 to Days 169, 337, 505 and 672Tobramycin MIC50: Day 3372.000 µg/mL
LAI 590 mg QDMinimum Inhibitory Concentrations (MICs) for Pseudomonas Aeruginosa (Pa) and Burkholderia Species From Day 1 to Days 169, 337, 505 and 672Tobramycin MIC50: Day 5052.000 µg/mL
LAI 590 mg QDMinimum Inhibitory Concentrations (MICs) for Pseudomonas Aeruginosa (Pa) and Burkholderia Species From Day 1 to Days 169, 337, 505 and 672Tobramycin MIC50: Day 6721.000 µg/mL
Primary

Oxygen Saturation: Change From Baseline at Day 672

Change in oxygen saturation as measured with pulse oximetry was performed via finger probes placed on the extremity opposite arterial lines and noninvasive blood pressure monitoring devices so that pulsatile flow was not interrupted.

Time frame: From Study Initiation up to Day 672

Population: Safety Population Patients with missing data were excluded.

ArmMeasureValue (MEAN)Dispersion
LAI 590 mg QDOxygen Saturation: Change From Baseline at Day 672-0.1 Percent of HemoglobinStandard Deviation 1.47
Primary

Respiratory Rate: Change From Baseline to Day 672

Respiratory rate was recorded at every visit as per standard practice at each investigational site.

Time frame: From Study Initiation up to Day 672

Population: Safety Population Patients with missing data were excluded.

ArmMeasureValue (MEAN)Dispersion
LAI 590 mg QDRespiratory Rate: Change From Baseline to Day 672-0.8 breaths per minuteStandard Deviation 3.02
Primary

Systolic BP: Change From Baseline at Day 672

Sitting blood pressure was recorded at every visit as per standard practice at each investigational site.

Time frame: From Study Initiation up to Day 672

Population: Safety Population Patients with missing data were excluded.

ArmMeasureValue (MEAN)Dispersion
LAI 590 mg QDSystolic BP: Change From Baseline at Day 6722.3 mmHgStandard Deviation 11.39
Primary

Treatment Emergent Adverse Events (TEAEs) up to Day 672

Treatment emergent adverse events including serious adverse events (SAE) and adverse events (AE) leading to permanent discontinuation of study drug

Time frame: From Study Initiation up to Day 672

Population: Safety Population

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
LAI 590 mg QDTreatment Emergent Adverse Events (TEAEs) up to Day 672Patients with ≥1 treatment-emergent AE183 Participants
LAI 590 mg QDTreatment Emergent Adverse Events (TEAEs) up to Day 672Patients with ≥ 1 serious AE92 Participants
LAI 590 mg QDTreatment Emergent Adverse Events (TEAEs) up to Day 672Patients with ≥1 AE leading to discontinuation21 Participants
Secondary

Number of Participants Who Received Antipseudomonal Antibiotic Treatment for Protocol Defined Pulmonary Exacerbation

Time frame: From Study Initiation up to Day 700

Population: mITT Population

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
LAI 590 mg QDNumber of Participants Who Received Antipseudomonal Antibiotic Treatment for Protocol Defined Pulmonary ExacerbationNumber of patients with the event through Day 700148 Participants
LAI 590 mg QDNumber of Participants Who Received Antipseudomonal Antibiotic Treatment for Protocol Defined Pulmonary ExacerbationNumber censored58 Participants
Secondary

Number of Subjects Experiencing a Protocol Defined Pulmonary Exacerbation

For number of subjects to first protocol-defined pulmonary exacerbation, follow-up time began at the first dose of study drug (Day 1) and ended no later than Day 700 (28-day follow up).

Time frame: From Study Initiation up to Day 700

Population: mITT

ArmMeasureGroupValue (NUMBER)
LAI 590 mg QDNumber of Subjects Experiencing a Protocol Defined Pulmonary ExacerbationNumber of patients with the event through Day 700151 participants
LAI 590 mg QDNumber of Subjects Experiencing a Protocol Defined Pulmonary ExacerbationNumber censored55 participants
Secondary

Number of Subjects Initiating Treatment.

The number of subjects initiating antipseudomonal therapy for protocol-defined pulmonary exacerbation confirmed by the investigator, and for investigator-defined pulmonary exacerbation were summarized. The data presented below is the Frequency of Systemic or Inhaled Antipseudomonal Therapy for Protocol-defined Pulmonary Exacerbations Confirmed by Investigator \- Time to First Use of Any New Antibiotic Treatment, Censoring at Date of Last Contact

Time frame: From Study Initiation up to Day 672

Population: mITT

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
LAI 590 mg QDNumber of Subjects Initiating Treatment.After Day 1 through Day 33781 Participants
LAI 590 mg QDNumber of Subjects Initiating Treatment.After Day 1 through Day 672108 Participants
Secondary

Percent Change in FEV1 Throughout the Study

Percent Change From Baseline in Predose FEV1

Time frame: Baseline, Day 337 and Day 672

Population: modified intention to treat (mITT) population

ArmMeasureGroupValue (MEAN)Dispersion
LAI 590 mg QDPercent Change in FEV1 Throughout the StudyBaseline2.104 Percent (%) changeStandard Deviation 0.865
LAI 590 mg QDPercent Change in FEV1 Throughout the StudyDay 3372.36 Percent (%) changeStandard Deviation 14.359
LAI 590 mg QDPercent Change in FEV1 Throughout the StudyDay 6723.62 Percent (%) changeStandard Deviation 18.485

Source: ClinicalTrials.gov · Data processed: Mar 7, 2026