| Not Yet Recruiting | Longitudinal Deep Phenotyping of Central Mechanisms in Dysosmia: A Pilot Study Using Electrobulbogram (EBG), F Respiratory Tract Infection, Smell Disorder, Influenza | — | 2026-04-23 |
| Withdrawn | Study of Dupilumab 300 mg Every Other Week After Endoscopic Sinus Surgery in Patients With Allergic Fungal Rhi Allergic Fungal Rhinosinusitis (AFRS), Chronic Rhinosinusitis (CRS), Asthma | Phase 3 | 2024-07-17 |
| Recruiting | Atorvastatin to Reduce Cisplatin-Induced Hearing Loss Among Individuals With Head and Neck Cancer Hearing Loss, Head and Neck Cancer | Phase 2 | 2024-07-10 |
| Recruiting | NIDCD Otolaryngology Clinical Protocol Biospecimen Bank Hearing Loss, Head and Neck Neoplasms, Hearing Disorders | — | 2024-03-04 |
| Recruiting | Collection of Clinical Data and Specimens for Research in Hearing, Balance, Taste, Smell, Voice, Speech, and L Hearing Loss, Deafness | — | 2023-03-08 |
| Suspended | Deep Phenotyping of Hearing Instability Disorders: Cohort Establishment, Biomarker Identification, Development Meniere's Disease, Enlarged Vestibular Aqueduct Syndrome, Autoimmune Inner Ear Disease | — | 2021-08-17 |
| Recruiting | Natural History of Autosomal Dominant Hearing Loss Hearing Loss | — | 2021-02-09 |
| Terminated | Collection of Clinical Data and Specimens for Research on Head and Neck and Communication Disorders Head and Neck Carcinoma | — | 2020-11-03 |
| Completed | Hearing Loss and the Effects of Statin Drugs in People With Head and Neck Squamous Cell Carcinoma Treated With Head and Neck Neoplasms, Hearing Disorder, Hyperlipidemia | — | 2017-11-03 |
| Recruiting | Normal Values in Hearing and Balance Testing Healthy Volunteer | — | 2012-09-21 |
| Terminated | Connectivity Analysis for Investigation of Auditory Impairment in Epilepsy Brain Mapping, Intracranial Central Nervous System Disorder, Epilepsy | — | 2010-09-10 |
| Completed | Studies of Measures of Attention Attention Deficit Disorder, Attention Deficit Hyperactivity Disorder | — | 2008-10-16 |
| Completed | Brain Imaging of Tinnitus Hearing Disorder | — | 2006-07-28 |
| Completed | Effects of Sleep Deprivation and Recovery on Cognitive Functions Sleep Deprivation | — | 2005-09-10 |
| Completed | Genetic Linkage Studies of Stuttering Stuttering | — | 2003-07-22 |
| Completed | Genetic Analysis of Hereditary Disorders of Hearing and Balance Sensorineural Hearing Loss, Hearing Disorder, Vestibular Disease | — | 2002-12-23 |
| Terminated | Surgery for Vocal Cord Paralysis Unilateral Vocal Cord Paralysis | Phase 3 | 2002-10-01 |
| Completed | A Comparison of Language Intervention Programs Language Disorders | Phase 3 | 2002-06-01 |
| Completed | Dopamine Function in Developmental Stuttering Developmental Stuttering | — | 2001-10-03 |
| Completed | Clinical and Genetic Analysis of Enlarged Vestibular Aqueducts Sensorineural Hearing Loss, Cytomegalovirus Infection | — | 2001-09-04 |
| Completed | Study of Taste Deficits Taste Disorder, Healthy | — | 2001-08-16 |
| Completed | Vaccine Therapy in Treating Patients With Stage IV Head and Neck Cancer Head and Neck Cancer, Metastatic Cancer | Phase 1 | 2001-06-01 |
| Terminated | Patient Evaluation for Head and Neck Surgery Branch Studies Head and Neck Neoplasms, Pharyngeal Cancer, Oral Cancer | — | 2001-03-12 |
| Completed | Maternal Immunization To Prevent Infant Otitis Media Otitis Media | Phase 1 / Phase 2 | 2000-10-01 |
| Completed | Genetic Studies of Tone Deafness Healthy, Tone Deafness | — | 2000-07-26 |
| Enrolling By Invitation | Genetic Analyses of Nonsyndromic and Syndromic Deafness in Pakistan Hearing Disorder | — | 2000-03-16 |
| Completed | Testing a Possible Cause of Reduced Ability of Children to Process Speech in Noise Central Auditory Disease, Healthy | — | 1999-11-01 |
| Terminated | Hereditary Deficits in Auditory Processing Leading to Language Impairment Auditory Perceptual Disorder, Language Delay, Language Disorder | — | 1999-01-31 |
| Terminated | Autoimmunity in Inner Ear Disease Hearing Loss, Sensorineural | Phase 3 | 1998-03-01 |
| Terminated | Genetic Analysis of Human Hereditary Hearing Impairment Partial Hearing Loss | — | 1997-09-08 |
| Completed | Vaccination for Middle Ear Infection Otitis Media | Phase 1 | 1997-05-01 |
| Terminated | Adenoidectomy for Otitis Media in 2-3 Year Old Children Otitis Media With Effusion | Phase 3 | 1997-02-01 |
| Completed | The Effects of Upper Airway and Digestive Tract Tumors on the Immune System Esophageal Neoplasm, Head and Neck Neoplasm, Laryngeal Neoplasm | — | 1996-12-01 |
| Completed | Genetic Factors Related to Stuttering Stuttering | — | 1996-10-01 |
| Terminated | Central Mechanisms in Speech Motor Control Studied With H215O PET Communication Disorder, Healthy, Stuttering | — | 1992-04-28 |
| Terminated | Randomized Study of Two Interventions for Liquid Aspiration: Short-Term and Long-Term Effects Pneumonia, Aspiration | Phase 3 | — |
| Completed | Acute Otitis Media: Adjuvant Therapy to Improve Outcome Otitis Media | Phase 3 | — |