Skip to content

Safety evaluation of low-level chlorine in water aerosol when inhaled by healthy volunteers

Open-label, exposure-escalation study to evaluate the safety and tolerability of nebulised HS4-20 in healthy volunteers

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN13034712
Enrollment
18
Registered
2021-12-15
Start date
2015-06-01
Completion date
Unknown
Last updated
2021-12-27

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

Conditions

Safety evaluation of nebulised HS4-20 physiologic aqueous chlorine aerosol Respiratory

Interventions

Pulmonary administration of HS4-20 as an aerosol via a nebuliser. The healthy volunteers were divided into three cohorts: 1. Two adults. Exposure escalation from 30 seconds increasing to 30 minutes.

Sponsors

Hypo-Stream Ltd
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Healthy volunteers, no exclusions on basis of age or gender

Exclusion criteria

Exclusion criteria: Does not meet the inclusion criteria

Design outcomes

Primary

MeasureTime frame
Treatment-emergent adverse events measured using observation for the absence of abnormality and of coordination by a clinically trained investigator over a 30-minute period following administration. Follow-up was 7 days post-administration self-reporting. The final follow-up was over a 12-month period of self-reporting and investigator interview.

Secondary

MeasureTime frame
1. Blood pressure measured with an automatic upper arm cuff sphygmomanometer (Omron X3) at baseline (pre-administration), 30 seconds, 2, 5, 10, 20, 30 minutes post-administration in first and second cohorts, the third cohort was measured at 30 seconds, 5, 20, 30 minutes 2. Oxygen saturation measured by pulse oximeter (Braun Healthcare Pulse Oximeter 1) throughout the periods of exposure and for 30 minutes after cessation of administration

Countries

England, United Kingdom

Contacts

Public ContactMyles Dakin
myles.dakin@hypo-stream.com+44 (0)1763 261129

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026