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First in Human Trial of CTX-187 in Healthy Volunteers and Chronically Infected Patients

A Phase 1 First-In-Human, Double-Blind, Single and Multiple Ascending Dose Trial to Evaluate Safety, Tolerability, Pharmacokinetics, and Immunogenicity of Intravenous Doses of CTX-187 in Healthy Volunteers Followed by Multiple Doses in Patients With a Bacterial Infection

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07708116
Enrollment
104
Registered
2026-07-16
Start date
2026-06-16
Completion date
2027-12-31
Last updated
2026-07-16

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

Conditions

Bacterial Infections, Bronchiectasis Adult, Bronchiectasis With Pseudomonas Aeruginosa Colonization

Keywords

CTX-187, Bronchiectasis, Pseudomonas Aeruginosa, Bacterial Infections

Brief summary

The primary objective of this trial is to assess the safety and tolerability of single and multiple ascending intravenously (IV) infused doses of CTX-187 when administered to healthy adult male and female participants and participants with a bacterial infection (bronchiectasis participants chronically infected with P. aeruginosa).

Interventions

DRUGPlacebo

Placebo will be administered via IV infusion.

DRUGCTX-187

CTX-187 will be administered via IV infusion.

Sponsors

Centauri Therapeutics Limited
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

1. Parts A and B: Healthy adult males and/or females, 18 to 65 years of age. 2. Parts A and B: Body mass index (BMI): ≥18.0 and ≤32.0 kg/m\^2 and weight \>50 kg. 3. Parts A and B: Good physical and mental health without clinically significant abnormalities. 4. Part C: Adult males and/or females, 18 to 75 years of age. 5. Part C: Prior clinical and computerized tomography diagnosis of bronchiectasis. 6. Part C: P. aeruginosa in sputum, bronchoalveolar lavage or another airway sample at least once in the 12 months prior to screening and P. aeruginosa in sputum during screening, both of which should be at least 21 days apart. 7. Part C: Otherwise in good physical and mental health without clinically significant abnormalities.

Exclusion criteria

1. Parts A and B: Previous participation in the current trial. 2. Parts A and B: History or presence of significant cardiovascular, pulmonary, hepatic, renal, haematological, gastrointestinal, endocrine, immunologic, dermatologic, or neurological disease, including any acute illness or surgery within the past 3 months determined by the Investigator to be clinically relevant. 3. Parts A and B: Participation in a drug trial within the previous 30 days before the first dose of trial drug or 5x elimination half-life, if known, whichever is longer. 4. Part C: Known hypersensitivity to any reagents contained in CTX-187 or documented hypersensitivity reaction or anaphylaxis to any medication. 5. Parts A, B and C: Known clinical diagnosis of cystic fibrosis, active allergic bronchopulmonary aspergillosis or active tuberculosis or nontuberculous mycobacterial infection; primary diagnosis of asthma or chronic obstructive pulmonary disease. 6. Part C: Treatment with long term inhaled, systemic or nebulized anti-pseudomonal antibiotics which are newly initiated within the previous 3 months prior to screening. 7. Part C: Receipt of anti-pseudomonal antibiotics for an exacerbation during the screening period. 8. Part C: History or presence of unstable co-morbidities: cardiovascular, pulmonary, hepatic, renal, haematological, gastrointestinal, endocrine, immunologic, dermatologic, or neurological disease, including any acute illness or surgery within the past 3 months determined by the Investigator to be clinically relevant. Participants on stable doses of anti-hypertensive medications or statins may be included following discussion between the Investigator and the medical monitor. 9. Part C: History of known or suspected Clostridioides difficile infection or diarrhoea within one week of recruitment, not resolved during the past 5 days. 10. Part C: Participants with an acute exacerbation of bronchiectasis.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants with Treatment-emergent Adverse Events (TEAEs)Up to Day 28TEAEs include clinically significant abnormalities in electrocardiograms (ECGs), vital signs, clinical laboratory values and physical examination.

Secondary

MeasureTime frame
Area Under the Concentration-time Curve (AUC) of CTX-187 in PlasmaPart A: Up to Day 2; Part B: Up to Day 8; Part C: Up to Day 9
Maximum Observed Plasma Concentration (Cmax) of CTX-187Part A: Up to Day 2; Part B: Up to Day 8; Part C: Up to Day 9
Time to Attain Maximum Observed Plasma Concentration (tmax) of CTX-187Part A: Up to Day 2; Part B: Up to Day 8; Part C: Up to Day 9
Terminal Elimination Half-life (t1/2) of CTX-187 in PlasmaPart A: Up to Day 2; Part B: Up to Day 8; Part C: Up to Day 9
Clearance (CL) of CTX-187Part A: Up to Day 2; Part B: Up to Day 8; Part C: Up to Day 9
Volume of Distribution at Steady-state (Vss) of CTX-187Part A: Up to Day 2; Part B: Up to Day 8; Part C: Up to Day 9
Number of Participants with Antidrug Antibodies (ADA) Against CTX-187 in SerumPart A: Up to Day 2; Part B: Up to Day 8; Part C: Up to Day 9

Countries

Netherlands

Contacts

CONTACTCentauri Clinical Team
clinical@centauritherapeutics.comPlease use email

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 17, 2026