Clinical trialNCT04552275RecruitingPhase 1Interventional

The HALT Biomarker Study

SponsorMassachusetts General HospitalEnrollment300Aortic StenosisBioprosthetic Valve DegenerationHypo-attenuated Leaflet Thickening

View the registry record on ClinicalTrials.gov

Summary

The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →

Investigators

No overall officials are registered on this study record. Site-level investigators, where published, appear with their sites below. Why? →

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

3 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States

Massachusetts General Hospital
Boston, Massachusetts, United States
Sammy Elmariah, MD
Recruiting
Minneapolis Heart Institute
Minneapolis, Minnesota, United States
Santiago Garcia, MD
Not, yet, recruiting
Catholic Medical Center
Manchester, New Hampshire, United States
Fahad S Gilani
Recruiting

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 22 Jun 2020
Primary completion: 22 Jun 2030
Completion: 22 Jun 2035
Last update posted: 10 Nov 2021
Registered enrollment: 300
Registry id: NCT04552275

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.