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Hyperbaric oxygen treatment added to standard care for acute idiopathic sudden sensorineural hearing loss - a multicentre randomized controlled trial

Status
Recruiting
Phases
Phase 2Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2024-510798-84-00
Acronym
SuDHO_1.0
Enrollment
490
Registered
2024-10-13
Start date
2022-01-28
Completion date
Unknown
Last updated
2025-05-23

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

Conditions

Idiopathic sudden sensorineural hearing loss (ISSNHL)

Brief summary

Mean absolute pure tone average (PTA*) at week 14 *PTA=mean hearing-threshold in dB of the 4 frequencies 0,5 kHz, 1kHz, 2kHz and 4kHz

Detailed description

Mean change in PTA (dB) from baseline to week 14, Proportion of patients with improvement of at least 10dB PTA from baseline to week 14, Mean word recognition score (WRS) in percentage-points at week 14 and change from baseline, Categories of hearing recovery according to Siegel's criteria at week 14, Categories of hearing-loss severity and proportion of patients with serviceable hearing according to the AAO-HNS criteria at baseline and week 14, Total score of patient reported communication problems assessed by APHAB-questionnaire at day 1 and week 14, RAND-12 scores at day 1 and week 14, Adverse events (AE) and serious AEs (SAE), Known side-effects of HBOT, Mean APHAB score at week 14

Interventions

DRUGOXYGEN

Sponsors

Helse Bergen HF
Lead SponsorOTHER

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Mean absolute pure tone average (PTA*) at week 14 *PTA=mean hearing-threshold in dB of the 4 frequencies 0,5 kHz, 1kHz, 2kHz and 4kHz

Secondary

MeasureTime frame
Mean change in PTA (dB) from baseline to week 14, Proportion of patients with improvement of at least 10dB PTA from baseline to week 14, Mean word recognition score (WRS) in percentage-points at week 14 and change from baseline, Categories of hearing recovery according to Siegel's criteria at week 14, Categories of hearing-loss severity and proportion of patients with serviceable hearing according to the AAO-HNS criteria at baseline and week 14, Total score of patient reported communication problems assessed by APHAB-questionnaire at day 1 and week 14, RAND-12 scores at day 1 and week 14, Adverse events (AE) and serious AEs (SAE), Known side-effects of HBOT, Mean APHAB score at week 14

Countries

Norway

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026