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Study to Assess Amphotericin B Cystetic for Inhalation (ABCI) Doses in Healthy Volunteers & People with Cystic Fibrosis

Launched by CYSTETIC MEDICINES, INC. · Apr 4, 2023

Trial Information

Current as of July 22, 2025

Recruiting

Keywords

ClinConnect Summary

This clinical trial is investigating a new treatment called Amphotericin B Cystetic for Inhalation (ABCI) to see how safe it is and how well it works in both healthy individuals and people with cystic fibrosis (CF). The study is divided into three parts: the first two parts involve healthy volunteers who will receive either the actual treatment or a placebo (which doesn’t contain the active drug) to compare the effects, while the third part focuses on individuals with cystic fibrosis who will receive the treatment. Overall, the trial aims to gather important information about the drug's safety, how it behaves in the body, and its possible benefits for treating cystic fibrosis.

To participate, healthy volunteers must be between 18 and 55 years old and meet certain health criteria, while individuals with CF should be at least 16 years old and have a confirmed diagnosis of the condition. Participants can expect to undergo health assessments and monitoring throughout the study. It’s important to note that those with specific health issues or recent infections may not be eligible to participate. If you or someone you know has cystic fibrosis and is interested in this study, it could be a chance to contribute to research that may help improve treatment options for the condition.

Gender

ALL

Eligibility criteria

  • Inclusion Criteria:
  • Part A and Part B: Each subject must meet the following criteria to be enrolled in Part A and Part B of this study.
  • Subject has signed, dated, and received a copy of the IRB/IEC-approved written ICF.
  • Subject is male or female aged ≥18 to ≤55 years.
  • Subject has a BMI between 18 and 32 kg/m2
  • Subject has an FEV1 of \>90% of predicted normal value
  • Subject has normal or clinically acceptable physical examination, vital signs, clinical laboratory values, and ECG at Screening.
  • Female subjects must be of non-childbearing potential or male/female subjects of childbearing potential agree to use highly effective contraception/preventive exposure measures
  • Part C: Each subject must meet the following criteria to be enrolled in Part C of this study.
  • Subject has signed, dated, and received a copy of the IRB/IEC-approved written ICF.
  • Age 16 years or older
  • Confirmed diagnosis of CF, including sweat chloride \>60 mM.
  • Subject is either: Being treated with an approved CFTR modulator for at least 28 days prior to Screening, or Not being treated with a CFTR modulator
  • * FEV1:
  • For subjects on CFTR modulators: FEV1 ≥40% and ≤90%
  • For subjects not on CFTR modulators: FEV1 ≥40% and ≤100%
  • Stable CF disease and treatment regiment
  • Female subjects must be of non-childbearing potential or male/female subjects of childbearing potential agree to use highly effective contraception/preventive exposure measures
  • Exclusion Criteria:
  • Part A and Part B: Any subject who meets any of these criteria must be excluded from Part A and Part B of this study:
  • Subject has history or evidence of any clinically significant pulmonary condition
  • Subject has history or evidence of any clinically significant diseases or conditions
  • Subject has history of malignancy of any type
  • Subject has an active COVID-19 infection within 4 weeks
  • Subject is positive for human immunodeficiency virus antibodies, hepatitis B surface antigen, or hepatitis C antibodies, or has a positive QuantiFERON®-tuberculosis Gold (QFT-G) test for tuberculosis at Screening
  • Subject has a self-reported lower respiratory tract infection within 6 weeks
  • Subject has evidence of any active or suspected bacterial, viral, fungal or parasitic infections within the past 4 weeks
  • A subject who is an active smoker or a former smoker
  • Subject has history of alcohol or drug abuse in the past year
  • Subject has tested positive for drugs (including cannabis), nicotine/cotinine, and/or alcohol use at Screening, subject has consumed alcohol within 24 hours prior to Visit 3
  • Subject has participated in any clinical study or had been treated with any investigational drugs within 28 days or 5 half-lives
  • Female subject who is pregnant or breastfeeding.
  • Subject has any episode of paradoxical bronchospasm in the past 12 months.
  • Subject has pacemaker; is not in sinus rhythm; has a corrected QT interval (QTc; using Fridericia's \[QTcF\] formula) of \>450 ms (for males) and \>470 ms (for females); or has a left bundle branch block or bifascicular block.
  • Subject has a pulse \<40 or \>100 bpm; systolic blood pressure \>140 mmHg, or diastolic blood pressure \>90 mmHg at Screening
  • Subject has Type I or II diabetes requiring medication.
  • Subject has received any vaccine within 30 days prior to Day 1.
  • Subject has received any of the following immunosuppressant therapies within 6 months prior to Screening: imatinib, ambrisentan, azathioprine, cyclophosphamide, cyclosporine A, bosentan, or methotrexate.
  • Subject has received any antibody or therapeutic biologic product during the 6 months prior to Screening.
  • Subject has received any oral, intravenous, or intramuscular steroid within 4 weeks prior to Screening. Intrathecal or intraarticular steroids are permitted.
  • A subject who is not vaccinated with the COVID-19 vaccine with appropriate window from last dose of vaccine to Screening per local guidelines, policies, and availability within 30 days prior to Day 1.
  • Part C: Any subject who meets any of these criteria must be excluded from Part C of this study:
  • History of any illness or any clinical condition that might confound the results of the study or pose an additional risk in administering study drug(s) to the subject.
  • Any of the following abnormal laboratory tests: Hemoglobin, Total bilirubin, liver enzymes or creatine clearance
  • An acute upper or lower respiratory infection, pulmonary exacerbation, or changes in therapy for sinopulmonary disease within 28 days before the screening visit.
  • An acute illness not related to CF within 14 days before the first dose of study drug.
  • Subject has an active COVID-19 infection within 4 weeks prior to screening.
  • Ongoing or prior participation in a study of an investigational treatment within 28 days or 5 terminal half-lives (whichever is longer) before screening.
  • Female subject who is pregnant or breastfeeding.
  • Please refer to study protocol for the complete inclusion/exclusion criteria list.

About Cystetic Medicines, Inc.

Cystetic Medicines, Inc. is a pioneering biopharmaceutical company dedicated to the development of innovative therapies for the treatment of urological conditions, with a particular focus on interstitial cystitis and related disorders. Committed to advancing patient care, the company leverages cutting-edge research and clinical expertise to drive the discovery and commercialization of effective, safe, and patient-centric solutions. Through rigorous clinical trials and a collaborative approach with healthcare professionals, Cystetic Medicines aims to enhance the quality of life for individuals suffering from chronic bladder pain and other debilitating urological issues.

Locations

Westmead, New South Wales, Australia

Clayton, Victoria, Australia

Canberra, Australian Capital Territory, Australia

Brisbane, Queensland, Australia

Christchurch, , New Zealand

Patients applied

0 patients applied

Trial Officials

Martin Burke, MD, PhD

Study Chair

Founder of cystetic Medicines

Timeline

First submit

Trial launched

Trial updated

Estimated completion

Not reported

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