Carotid Body Removal for the Treatment of Resistant Hypertension: a Pilot Study

NCT ID: NCT01729988

Last Updated: 2016-10-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

11 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-11-30

Study Completion Date

2016-01-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

This is a pilot study to assess the effectiveness, safety and feasibility of carotid body removal in patients with high blood pressure (hypertension) resistant to medical treatment. Patients with high blood pressure are at significant risk of medical complications including stroke and heart disease. The principle research question is whether removal of the carotid body will lead to an improvement in the blood pressure of this patient group.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Hypertension

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Carotid body excision

Patients undergoing the carotid body excision to test the hypothesis that carotid body excision is sufficient to attain target blood pressure.

Group Type EXPERIMENTAL

Carotid body excision

Intervention Type PROCEDURE

This surgery does not involve any study drug or investigational device.

The carotid body will be removed by the so called 'lateral approach' or a combined 'lateral and medial approach'. In all cases the target area was defined as the tissue in between the ECA and ICA, up to 5-6mm above the bifurcation point of the common carotid artery into the ECA and ICA. In a lateral approach the carotid bifurcation is not turned. A combined approach includes usually dissection of the superior thyroid vessel and turning of the carotid bifurcation.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Carotid body excision

This surgery does not involve any study drug or investigational device.

The carotid body will be removed by the so called 'lateral approach' or a combined 'lateral and medial approach'. In all cases the target area was defined as the tissue in between the ECA and ICA, up to 5-6mm above the bifurcation point of the common carotid artery into the ECA and ICA. In a lateral approach the carotid bifurcation is not turned. A combined approach includes usually dissection of the superior thyroid vessel and turning of the carotid bifurcation.

Intervention Type PROCEDURE

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Resistant HTN criteria with either confirmed sleep disordered breathing. Definition of HTN:Office SBP ≥ 160 mmHg and daytime mean ABPM ≥ 140 mm Hg
* Definition of sleep disordered breathing: SDB defined as mild to moderate obstructive, central or mixed sleep apnea defined as 5 \< AHI \< 30 with O2 desaturation not exceeding 80% during the night.

Exclusion Criteria

* Calculated GFR \< 30
* Carotid body located outside the defined carotid septum
* Obstructive carotid atherosclerotic disease
* Oxygen desaturation at rest below 92%
* Known structural lung disease (medical interview)
* Requirement for oxygen therapy to maintain oxygen saturation
* Patients wish to participate in mountain climbing, skin diving or free diving
* Pregnancy or anticipation of pregnancy
* Palliative care/chemotherapy
* Acute coronary syndrome or unstable angina \< 6 months prior to procedure
* Use of exogenous insulin AND history of hypoglycemic unawareness
* Stroke or transient ischaemic attack (TIA), or myocardial infarction \< 6 months prior to procedure
* Expected life expectancy less that 24months due to other disease
* Intravenous drug use
* Excessive use of alcohol or sedatives (Alcohol intake \>28 units/week)
* Obesity (BMI \> 40)
* Upper airway or facial abnormalities
* Large neck circumference (\>43.2 cm men; \>40.6 cm women)
* Febrile illness within two weeks of participation
* Unable to attend for follow up appointments at 1, 3 and 6 months post operatively.
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Noblewell

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Paul A. Sobotka, M.D.

Role: STUDY_DIRECTOR

Cibiem, Inc.

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Department of Hypertension and Diabetology, Medical University of Gdansk

Gdansk, , Poland

Site Status

Countries

Review the countries where the study has at least one active or historical site.

Poland

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

CBR-GDAPL-CIBIEM

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Feasibility Study of BMAC Enhanced CABG
NCT01074099 TERMINATED PHASE1/PHASE2
Ischemic Postconditioning in Carotid Surgery
NCT06359756 ACTIVE_NOT_RECRUITING NA