A Study to Assess the Safety, Tolerability, and Pharmacokinetics of Brensocatib Tablets in Adults With Cystic Fibrosis
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The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT05090904 |
Recruitment Status :
Completed
First Posted : October 25, 2021
Last Update Posted : March 23, 2023
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Condition or disease | Intervention/treatment | Phase |
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Cystic Fibrosis | Drug: Brensocatib Drug: Placebo | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 29 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Double (Participant, Investigator) |
Primary Purpose: | Treatment |
Official Title: | A Phase 2a, Single-Blind, Placebo-Controlled, Parallel-Group Study to Assess Safety, Tolerability, and Pharmacokinetics of Brensocatib Tablets in Adults With Cystic Fibrosis |
Actual Study Start Date : | November 30, 2021 |
Actual Primary Completion Date : | November 1, 2022 |
Actual Study Completion Date : | November 1, 2022 |

Arm | Intervention/treatment |
---|---|
Experimental: Brensocatib 10 mg
Participants will be administered brensocatib at a dose of 10 mg once per day for 28 days. The participants will be stratified based on cystic fibrosis transmembrane conductance regulators (CFTRs) modulator treatment.
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Drug: Brensocatib
Oral tablet
Other Name: INS1007 |
Experimental: Brensocatib 25 mg
Participants will be administered brensocatib at a dose of 25 mg once per day for 28 days. The participants will be stratified based on CFTRs modulator treatment.
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Drug: Brensocatib
Oral tablet
Other Name: INS1007 |
Experimental: Brensocatib 40 mg
Participants will be administered brensocatib at a dose of 40 mg once per day for 28 days. The participants will be stratified based on CFTRs modulator treatment.
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Drug: Brensocatib
Oral tablet
Other Name: INS1007 |
Experimental: Brensocatib 65 mg
Following review of safety and pharmacokinetic data by the safety review committee, an additional cohort of participants may be administered brensocatib at a dose of 65 mg once per day for 28 days. The participants will be stratified based on CFTRs modulator treatment.
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Drug: Brensocatib
Oral tablet
Other Name: INS1007 |
Placebo Comparator: Placebo
Participants will be administered a placebo matching brensocatib once per day for 28 days. The participants will be stratified based on CFTRs modulator treatment.
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Drug: Placebo
Oral tablet |
- Maximum Plasma Concentration (Cmax) of Brensocatib [ Time Frame: Day 1: Predose and 0.5, 1, 2, 4, 6, 8, and 24 hours postdose; Day 28: Predose and at 0.5, 1, 2, 4, 6, 8, 24 and 168 hours postdose ]
- Time to Maximum Plasma Concentration (tmax) of Brensocatib [ Time Frame: Day 1: Predose and 0.5, 1, 2, 4, 6, 8, and 24 hours postdose; Day 28: Predose and at 0.5, 1, 2, 4, 6, 8, 24 and 168 hours postdose ]
- Area Under the Concentration-time Curve from Time 0 to 24 Hours Post-dose (AUC0-24) of Brensocatib [ Time Frame: Day 1: Predose and 0.5, 1, 2, 4, 6, 8, and 24 hours postdose; Day 28: Predose and at 0.5, 1, 2, 4, 6, 8, 24 hours postdose ]
- Elimination Half-life (t1/2) of Brensocatib [ Time Frame: Day 1: Predose and 0.5, 1, 2, 4, 6, 8, and 24 hours postdose; Day 28: Predose and at 0.5, 1, 2, 4, 6, 8, 24 and 168 hours postdose ]
- Number of Participants Who Experience a Treatment-emergent Adverse Event (TEAE) [ Time Frame: Day 1 to Day 56 ]
- Dose-normalized Maximum Plasma Concentration (Cmax) of Brensocatib [ Time Frame: Day 1: Predose and 0.5, 1, 2, 4, 6, 8, and 24 hours postdose; Day 28: Predose and at 0.5, 1, 2, 4, 6, 8, 24 and 168 hours postdose ]
- Dose-normalized Area Under the Concentration-time Curve from Time 0 to 24 Hours Post-dose (AUC0-24) of Brensocatib [ Time Frame: Day 1: Predose and 0.5, 1, 2, 4, 6, 8, and 24 hours postdose; Day 28: Predose and at 0.5, 1, 2, 4, 6, 8, 24 hours postdose ]
- Dose-normalized Area Under the Concentration-time Curve from Time 0 to the Time of Last Measurable Concentration (AUClast) of Brensocatib [ Time Frame: Day 1: Predose and 0.5, 1, 2, 4, 6, 8, and 24 hours postdose; Day 28: Predose and at 0.5, 1, 2, 4, 6, 8, 24 and 168 hours postdose ]

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Participants must be ≥18 years of age at the time of signing the informed consent.
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Male or female participants with a confirmed diagnosis of CF related lung disease:
- Percent predicted forced expiratory volume in 1 second (ppFEV1) between 40% to 90% (inclusive) at Screening Visit and at Baseline.
- Stable CF treatment for at least 30 days before screening and willing to remain on a stable regimen throughout the treatment period.
- Has a body mass index ≥18 kg/m^2.
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Male and female participants must use contraceptives that are consistent with local regulations regarding the methods of contraception for those participating in clinical studies.
- Male participants, who are not sterile, with female partners of childbearing potential must be using effective contraception from Day 1 to at least 90 days after the last dose.
- Women must be postmenopausal (defined as no menses for 12 months without an alternative medical cause), surgically sterile, or using highly effective contraception methods (i.e., methods that alone or in combination achieve <1% unintended pregnancy rates per year when used consistently and correctly) from Day 1 to at least 90 days after the last dose.
- Female participants of childbearing potential must have a negative serum pregnancy test at Screening.
- Male participants with pregnant or nonpregnant women of childbearing potential partners must use a condom.
Exclusion Criteria:
- Severe or unstable CF, per Investigator's judgement.
- Currently being treated for allergic bronchopulmonary aspergillosis or nontuberculous mycobacteria or tuberculosis.
- Active and current infection by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).
- History of malignancy in the past 5 years, except completely treated in situ carcinoma of the cervix and completely treated non-metastatic squamous or basal cell carcinoma of the skin.
- Established diagnosis of hepatitis B viral infection or positive for hepatitis B surface antigen (HBsAg) at Screening.
- Established diagnosis of hepatitis C virus (HCV) infection at Screening. Participants positive for hepatitis C antibody are eligible only if HCV RNA is negative.
- History of human immunodeficiency virus (HIV) infection.
- Acute upper or lower respiratory tract infection, pulmonary exacerbation, or changes in therapy (including intravenous and oral antibiotics) for pulmonary disease within 4 weeks prior to Day 1 (administration of the first dose of study drug). Participants meeting this criterion could be rescreened 4 weeks after resolution of symptoms.
- History of prolonged QT/QTc interval with QTcF >480 millisecond (msec) at Screening.
- History of solid organ or hematological transplantation.
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Have diagnosed periodontal disease and are either:
- Currently treated by a dentist for this condition or
- Expected to have periodontal disease-related procedures within the study period.
- Received any live attenuated vaccine within 4 weeks prior Screening.
- Ongoing participation in another therapeutic clinical study or prior participation in an investigational drug study within 90 days prior to Screening.
- Known history of hypersensitivity to brensocatib or any of its excipients.
- Use of any immunomodulatory agents within 4 weeks before the Screening Visit is prohibited during the study through end of study (including, but not limited to: bortezomib, ixazomib, thalidomide, cyclophosphamide, mycophenolate, Janus kinase inhibitors, interferon gamma (IFN-γ], and azathioprine).
- Continuous use of high-dose non-steroidal anti-inflammatory drugs (NSAIDs) is prohibited during the study through end of study.
- History of alcohol, medication, or illicit drug abuse.
- Current smoker, as defined by Centers for Disease Control and Prevention: An adult who has smoked 100 cigarettes in his or her lifetime and who currently smokes cigarettes.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05090904
United States, Florida | |
USA001 | |
Gainesville, Florida, United States, 32610-0001 | |
United States, Georgia | |
USA016 | |
Augusta, Georgia, United States, 30912-0004 | |
United States, Illinois | |
USA025 | |
Glenview, Illinois, United States, 60025-7645 | |
United States, Massachusetts | |
USA011 | |
Boston, Massachusetts, United States, 02115-5724 | |
United States, Michigan | |
USA023 | |
Ann Arbor, Michigan, United States, 48109 | |
United States, Missouri | |
USA002 | |
Saint Louis, Missouri, United States, 63101 | |
United States, New York | |
USA022 | |
New York, New York, United States, 10032-3720 | |
United States, Ohio | |
USA008 | |
Cleveland, Ohio, United States, 44106-1716 | |
USA006 | |
Cleveland, Ohio, United States, 44195-0001 | |
United States, Oregon | |
USA018 | |
Portland, Oregon, United States, 97239-3011 | |
United States, South Carolina | |
USA009 | |
Charleston, South Carolina, United States, 29425-8900 | |
United States, Tennessee | |
USA017 | |
Nashville, Tennessee, United States, 37232-0028 | |
United States, Texas | |
USA004 | |
Dallas, Texas, United States, 75390-7208 | |
USA003 | |
Tyler, Texas, United States, 75708 |
Responsible Party: | Insmed Incorporated |
ClinicalTrials.gov Identifier: | NCT05090904 |
Other Study ID Numbers: |
INS1007-211 |
First Posted: | October 25, 2021 Key Record Dates |
Last Update Posted: | March 23, 2023 |
Last Verified: | March 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Cystic Fibrosis Brensocatib |
Cystic Fibrosis Fibrosis Pathologic Processes Pancreatic Diseases Digestive System Diseases |
Lung Diseases Respiratory Tract Diseases Genetic Diseases, Inborn Infant, Newborn, Diseases |