N/A
Completed N=124
Restoration of Spectral Resolution With Hearing-aid Amplification
Source: ClinicalTrials.gov NCT03850678 ↗Enrolled (actual)
124
Serious AEs
—
Results posted
Jan 2025
Primary outcomePrimary: Spectral Resolution — 3.5; 3.3; 3.2; 2.8 units on a scale — p=.774
Summary
The objective of this study protocol is to determine the efficacy of using aided measures of spectral resolution to set the dynamic range of hearing with hearing-aid amplification. Measures of spectral resolution will be obtained, as will measures of speech recognition.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Spectral Resolution |
3.5; 3.3; 3.2; 2.8; 2.5; 3.5 | .774 |
| PRIMARY Speech Recognition |
6.6; 4.5; 4.0; 3.7 | .741 |
| SECONDARY Working Memory |
23.6; 20.1 | .805 |
Eligibility Criteria
Inclusion Criteria
- normal tympanograms (peak admittance of ≥ 0.2 mmhos, -200 to 50); Hearing thresholds for normal hearing group less than or equal to 20 decibels in hearing level (dB HL) from .25 to 8 kHz. Pure-tone average (2, 4 & 6 kHz) hearing thresholds for participants with hearing loss of 30 - 65 dB HL.
Exclusion Criteria
- cognitive impairment
Data sourced from ClinicalTrials.gov (NCT03850678). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.