Post-approval studies (Phase 4)Study completedNCT04853836What this trial is testingOlfactory Disfunction and Co-ultraPEALutWho this might be right forAnosmiaCovid19Hyposmia+2 more University Of Perugia 200
Large-scale testing (Phase 3)Looking for participantsNCT05855369What this trial is testingStudy of Chemosensory Enhancement Through Neuromodulation Training (SCENT for Long COVID)Who this might be right forSmell DysfunctionOlfactory DisorderLong COVID Medical University of South Carolina 145
Not applicableLooking for participantsNCT05384561What this trial is testingOlfactory Training As a Treatment for Olfactory Dysfunction Post COVID-19Who this might be right forHyposmiaCOVID-19Parosmia+2 more Université du Québec à Trois-Rivières 70
Not applicableLooking for participantsNCT06482138What this trial is testingDysfunction of Olfaction After COVID-19 Infection: Morphological and Histomolecular InvestigationWho this might be right forCovid19Olfactory Dysfunction Universitaire Ziekenhuizen KU Leuven 240
Not applicableNot Yet RecruitingNCT06544395What this trial is testingEfficacy of Non-invasive Neuromodulation Treatments for COVID-19 SequelaeWho this might be right forCovid-19 Recurrent Clinica Gema Leon 104
Testing effectiveness (Phase 2)Active Not RecruitingNCT06204432What this trial is testingSodium Citrate in Smell Retraining for People With Post-COVID-19 Olfactory DysfunctionWho this might be right forLong Haul COVID-19Post-Acute COVID-19 SyndromeAnosmia+1 more University of North Carolina, Chapel Hill 60
Testing effectiveness (Phase 2)Study completedNCT06253806What this trial is testingStellate Ganglion Block for COVID-induced ParosmiaWho this might be right forCOVID-19-Induced Parosmia Washington University School of Medicine 48
Post-approval studies (Phase 4)UnknownNCT05002530What this trial is testingInvestigating the Potential Role of Aerosolized Retinoic Acid, a Potent Vitamin A Metabolite for Treating COVID-19 Anosmia and Retinoic Acid Insufficiency .A Novel Approach for Regaining Sense of Smell.Who this might be right forPost COVID-19 Anosmia (Loss of Smell) Kafrelsheikh University 10,000
Not applicableStudy completedNCT04806880What this trial is testingStudy Evaluating the Olfactory Recovery of Anosmia Post COVID-19 by Olfactory Rehabilitation Assisted by Web-applicationWho this might be right forCovid19 Weprom 1,155
Post-approval studies (Phase 4)WithdrawnNCT04374474What this trial is testingAnosmia Rehabilitation in Patients Post Coronavirus Disease (COVID 19)Who this might be right forOlfactory Disorder London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's
Not applicableStudy completedNCT05812209What this trial is testingStellate Ganglion Block to Treat Long COVID 19 Case SeriesWho this might be right forLong COVIDLong Covid19Post-COVID-19 Syndrome+12 more Metamorphosis LTD 41
Not applicableWithdrawnNCT05760079What this trial is testingLactoferrin for COVID-19-Induced Taste or Smell AbnormalityWho this might be right forCovid19Taste Disorder, SecondaryTaste Disorders+4 more Wake Forest University Health Sciences
Post-approval studies (Phase 4)Study completedNCT06208540What this trial is testingClinical Characteristics and Treatment of Anosmia and Ageusia Due to SARS-CoV2 VariantsWho this might be right forPost-covid-19 Persistent Smell and Taste Disorders Sherifa Ahmed Hamed 160
Not applicableStudy completedNCT04406584What this trial is testingIntranasal Injection of PRP Versus Saline for Treatment of Olfactory DysfunctionWho this might be right forOlfactory DisorderOlfaction DisordersOlfactory Nerve Injuries+4 more Stanford University 30
Testing effectiveness (Phase 2)Study completedNCT05970731What this trial is testingDirected Topical Drug Delivery for Treatment for PASC HyposmiaWho this might be right forPost Acute Sequelae Covid-19 Hyposmia Duke University 16
Testing effectiveness (Phase 2)UnknownNCT04846010What this trial is testingRecovering Damaged Cells for Sequelae Caused by COVID-19, SARS-CoV-2Who this might be right forSequelae of; InfectionPost Infection GlomerulonephritisPost-Infectious Peripheral Neuralgia+15 more All Natural Medicine Clinic, LLC 2,000
Not applicableLooking for participantsNCT06766279What this trial is testingInvestigating the Efficacy of OMT to Recover Olfactory Perception After COVID-19Who this might be right forAnosmia Burrell College of Osteopathic Medicine 32
Large-scale testing (Phase 3)Study completedNCT04830943What this trial is testingCerebrolycin for Treatment of Covid-related Anosmia and AgeusiaWho this might be right forCovid19 Related Anosmia and Aguesia Assiut University 250
Not applicableActive Not RecruitingNCT05040659What this trial is testingLongitudinal At Home Smell Testing to Detect Infection by SARS-CoV-2Who this might be right forAnosmiaAsymptomatic COVID-19COVID-19 Respiratory Infection+3 more Massachusetts General Hospital 1,000
Not applicableUnknownNCT04764981What this trial is testingOlfactory Training for Olfactory Dysfunction After Coronavirus Disease - 19 (COVID-19)Who this might be right forCovid19SARS-CoV InfectionOlfactory Disorder+1 more Universidade do Estado do Pará 350