Clinical trial • Phase I/II • Infectious Disease

HYPOCHLOROUS ACID for Chronic airway infections | Cystic fibrosis | Primary ciliary dyskinesia | Non-CF bronchiectasis

Phase I/II trial of HYPOCHLOROUS ACID for Chronic airway infections | Cystic fibrosis | Primary ciliary dyskinesia | Non-CF bronchiectasis.

Overview

Trial Therapeutic Area
Infectious Disease
Trial Disease
Chronic airway infections | Cystic fibrosis | Primary ciliary dyskinesia | Non-CF bronchiectasis
Trial Stage
Phase I/II
Drug Modality
Small molecule

Key dates

Initial CTIS Submission Date
01-10-2025
First CTIS Authorization Date
19-12-2025

Trial design

open-label, none/not specified-controlled, adaptive Phase I/II trial in Denmark.

Open Label
Yes
Comparator
None/Not specified
Adaptive
True, dose-escalation (multiple ascending doses) in healthy participants to select a well-tolerated dose for the PoC part; no further adaptive rules provided in the available data.
Single Multiple Or Escalation Dose Combined
Yes
Target Sample Size
55

Eligibility

Recruits 55 No vulnerable populations selected; informed consent to be obtained from adult participants as per the subject information and informed consent documents. Assent/consent for minors not applicable..

Pregnancy Exclusion
are pregnant or lactating
Vulnerable Population
No vulnerable populations selected; informed consent to be obtained from adult participants as per the subject information and informed consent documents. Assent/consent for minors not applicable.

Inclusion criteria

  • {"criterion_text":"- Phase 1: Participants are eligible to participate in the dose-escalation part of the trial if they are healthy, between 18 and 55 years of age, and have a Body Mass Index (BMI) of ≥ 18.5 and ≤ 29.9 kg/m2"}
  • {"criterion_text":"- Phase 2a: Adult CF/PCD/NCFB patients with chronic airway infection are eligible to participate in the PoC part of the trial if their underlying CF/PCD/NCFB disease is stable and they are able to spontaneously expectorate >1 g sputum with a bacterial density of at least 5 log10 colony-forming units (CFU) per g"}

Exclusion criteria

  • {"criterion_text":"- Phase 1: Participants are not eligible to participate in the dose-escalation part of the trial if they have recently participated in another clinical trial or have donated blood; are pregnant or lactating; have a medical condition or a history of drug hypersensitivity; are using concomitant medication."}
  • {"criterion_text":"- Phase 2a: CF/PCD/NCFB patients are not eligible to participate in the PoC part of the trial if their forced expiratory volume (FEV1) is below 30% of predicted or their oxygen saturation is below 90% determined by pulse oximetry; if they have recently participated in another clinical trial or have donated blood; are pregnant or lactating; have a medical condition other than their underlying CF/PCD/NCFB disease which in the opinion of the investigator precludes participation in the trial; have a history of drug hypersensitivity."}

Endpoints

Primary endpoints

  • {"endpoint_text":"- Phase 1: The primary endpoint in the dose-escalation part of the trial is the nature, incidence, and severity of adverse events (AEs)","definition_or_measurement_approach":"Assessment and reporting of adverse events including their nature, incidence and severity as captured during the dose-escalation part of the trial."}
  • {"endpoint_text":"- Phase 2a: The primary endpoint in the PoC part of the trial is the change from baseline in log10-transformed sputum density of bacteria following treatment","definition_or_measurement_approach":"Change from baseline in log10-transformed sputum bacterial density (CFU/g) following treatment; reduction in sputum density of bacteria as measured in collected sputum samples."}

Recruitment

Planned Sample Size
55
Recruitment Window Months
12
Consent Approach
Informed consent is to be obtained from adult participants using the provided subject information and informed consent forms (documents listed in CTIS). No assent for minors is applicable. Specific languages of the documents are not stated in the available data.

Geography

Total Number Of Sites
1
Total Number Of Participants
55

Denmark

Earliest CTIS Part Ii Submission Date
18-12-2025
Latest Decision Or Authorization Date
13-02-2026
Processing Time Days
57
Number Of Sites
1
Number Of Participants
55

Sites

Site Name
Dantrials ApS
Department Name
Zelo Fase I Enhed
Contact Person Name
David Peick Sonne
Contact Person Email
david.peick.sonne@regionh.dk
Number Of Participants
55

Sponsor

Primary sponsor

Full Name
Softox Solutions AS
Organisation Type
Pharmaceutical company
Country Of Registered Address
Norway

Third parties

  • {"country":"Denmark","full_name":"Billev Pharma ApS","duties_or_roles":"code 8","organisation_type":"Pharmaceutical company"}

Investigational products

Investigational Product Name
SS0331 (nebuliser solution)
Active Substance
HYPOCHLOROUS ACID
Modality
Small molecule
Routes Of Administration
INHALATION
Route
INHALATION
Frequency
TID for 5 days in PoC part; dose-escalation schedule specified as multiple ascending doses (details not provided).

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