Clinical Trial Details
— Status: Completed
Administrative data
| NCT number |
NCT02594917 |
| Other study ID # |
STUDY19030124 |
| Secondary ID |
|
| Status |
Completed |
| Phase |
|
| First received |
|
| Last updated |
|
| Start date |
October 2015 |
| Est. completion date |
September 1, 2023 |
Study information
| Verified date |
September 2023 |
| Source |
University of Pittsburgh |
| Contact |
n/a |
| Is FDA regulated |
No |
| Health authority |
|
| Study type |
Observational
|
Clinical Trial Summary
The investigators are performing this research study to determine whether having low
iron-sulfur cluster levels can cause a disease known as pulmonary hypertension (PH). PH is
defined as abnormally high blood pressure in the arteries of the lungs.
Usually, small specialized structures inside each human cell called mitochondria are in
charge of generating energy within lung arteries for normal function. During situations of
disease or stress, lung arteries undergo a change in the function of mitochondria, resulting
in the development of PH. In studies on mice, investigators have learned that alterations in
the production of specific metal complexes called iron-sulfur clusters are responsible for
these changes. This makes it more likely that mice will develop PH.
In this study, the investigators want to find out if alteration of iron-sulfur cluster
formation leads to increased likelihood of developing PH in humans.
Description:
Test group:
The study will include two visits for the test group:
At visit one there will be required and optional research activities as the following:
Required research activities:
-Peripheral blood draw (3.5 tablespoons) drawn by research coordinator. This blood is to
isolate PBMCs for generation of iPSCs.If patient did not want to give a blood sample we will
ask if willing to give a urine sample. A clinical research coordinator will give the patient
a plastic container and will explain how use it.
The following research activities will be optional at visit one:
1. Physical exam and blood work (kidney/liver, blood count, coagulation, B-HCG, iron
studies, and plasma for microRNA) processed at Presby Lab. This will be required if the
patient approved to do right heart cath.
2. Electrocardiogram.
3. 6 Minute Walk Test.
4. Skin Biopsy from underarm or inner thigh by physician (Dermatology department) (if
patients agree to do, if not, we will only get a blood sample)
5. Resting Echocardiogram
This visit will last 7-8 hours.
Study Visit Two:
This will include optional Right Heart Catheterization.
- Right Heart catheterization by PI/Sub-Investigator. Duration ~ 3 hours
- IF the results show that the pressure in the lung vessels is elevated without
exercise AND there is no other abnormality in the heart function, we will NOT do
exercise testing.
- IF the patients are physically able to perform exercise testing/agree to do an
exercise testing, patients will have an Exercise Right Heart catheterization and a
Rest and Stress Echocardiography. (Determined by PI/Sub-Investigator
- All participants who will do right heart catheterization will have to do a
pregnancy test before the procedure.
- Exercise Echocardiogram completed in. If patient unable to exercise medication
(Dobutamine) will be given. Duration ~ 1-2 hours
- Exercise Right Heart catheterization Duration ~ 2-3 hours
CONTROL GROUP
Control group will only have one visit. At this visit there will be a minimum required
research activity to participate in the study and this will include:
-Peripheral blood draw (3.5 tablespoons) drawn by research coordinator. This blood is to
isolate PBMCs for generation of iPSCs. If participant did not want to give a blood sample we
will ask if willing to give a urine sample.
The following research activists will be optional at visit one:
1. Physical exam and blood work (kidney/liver, blood count, coagulation, B-HCG, iron
studies, and plasma for microRNA) processed at Presby Lab. This will be required if the
patient approved to do right heart cath.
2. ECG, done by research coordinator and read by PI/Sub-Investigator.
3. 6 Minute Walk Test, done by research coordinator, if patient could perform.
4. Skin Biopsy from underarm or inner thigh by physician (Dermatology department) (if
patients agree to do, if not, we will only get a blood sample) This visit will last 6-7
hours.
