CardiomyopathyPhase 1/2Aim2NCT01970176
Study to Determine How Cialis Effects the Renal Function in Response to Volume Expansion in Preclinical Systolic Cardiomyopathy (Aim2)
A Phase 1/2 study testing Tadalafil in people with Cardiomyopathy and Renal Impairment, run by Mayo Clinic at 1 site in United States.
Trial summary
To determine the effect of 12 weeks of chronic PDEV inhibition with Tadalafil versus placebo on basal cardiorenal and humoral function and on the integrated cardiorenal and humoral response to acute sodium loading in subjects with preclinical systolic dysfunction (PSD) and renal (kidney) dysfunction. Read more about this study
- Who is it for?
- Ages 21 to 90 years
- Conditions the study is for
- Cardiomyopathy, Renal Impairment
- What is being tested?
- Tadalafil
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 20 participants
- Where
- 1 siteUnited States
- Study dates
- 9 Jan 2014to Sep 2019
- Phase
- Phase 1/2
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 21 to 90 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- A total of 39 patients with PSD as defined by an ejection fraction of less than 40%, no clinical signs or symptoms of congestive heart failure, a minimal distance on 6-minute walk of equal or >450 meters will be recruited and calculated creatinine clearance of equal or less than 90 ml/min and greater than 30 ml/min, using the (MDRD-measurement of renal dysfunction, formula) assessed within the past 24 months. If the subject is not able to walk 450 meters due to pain in hips and knees and not fatigue or shortness of breath than they will still qualify for the protocol.
Who cannot join
- Current or anticipated future need for nitrate therapy
- Systolic blood pressure < 90 mmHg or > 180 mm Hg
- Diastolic blood pressure < 40 mmHg or > 100 mmHg
- Patients taking alpha antagonists or cytochrome P450 3A4 inhibitors (ketoconazole, itraconazole, erythromycin, saquinavir, cimetidine or serum proteases inhibitors for HIV) who cannot be taken off these medications for the duration of the study.
- Patients taking the following selective alpha blockers and who are unable to stop for the duration of the study;
- Alfuzosin
Show all 38Show fewer
- Prazosin
- Doxazosin
- Tamsulosin
- Terazosin
- Silodosin
- Patients with retinitis pigmentosa, previous diagnosis of nonischemic optic neuropathy, untreated proliferative retinopathy or unexplained visual disturbance
- Patients with sickle cell anemia, multiple myeloma, leukemia or penile deformities placing them at risk for priapism (angulation, cavernosal fibrosis or Peyronie's disease)
- Patients with an allergy to iodine.
- Patients on PDEV inhibition for pulmonary hypertension
- Patients on PDEV inhibition for erectile dysfunction who are not willing to stop the medication for the duration of the study
- Valve disease (> moderate aortic or mitral stenosis; > moderate aortic or mitral regurgitation)
- Obstructive Hypertrophic cardiomyopathy
- Infiltrative or inflammatory myocardial disease (amyloid, sarcoid)
- Pericardial disease
- Have experienced a myocardial infarction or unstable angina, or have undergone percutaneous transluminal coronary angiography (PTCA) or coronary artery bypass grafting (CABG) within 60 days prior to consent, or requires either PTCA or CABG at the time of consent
- Severe congenital heart diseases
- Sustained ventricular tachycardia or ventricular fibrillation within 14 days of screening
- Second or third degree heart block without a permanent cardiac pacemaker
- Stroke within 3 months of screening or other evidence of significantly compromised Central Nervous System (CNS) perfusion
- Hemoglobin <9 g/dL
- Patients with severe liver disease (AST > 3x normal, alkaline phosphatase or bilirubin > 2x normal)
- Serum sodium of < 125 mEq/dL or > 150 mEq/dL
- Serum potassium of < 3.2 mEq/dL or > 5.9 mEq/dL
- Prior diagnosis of intrinsic renal diseases including renal artery stenosis of > 50%
- Peritoneal or hemodialysis within 90 days or anticipation that dialysis or ultrafiltration of any form will be required during the study period
- Less than 21 years of age
- Pregnant or nursing women.
- Women of child bearing potential who do not have a negative pregnancy test at study entry and who are not using effective contraception
- Non-cardiac condition limiting life expectancy to less than one year, per physician judgment
- Other acute or chronic medical conditions or laboratory abnormality which may increase the risks associated with study participation or may interfere with interpretation of the data
- Received an investigational drug within 1 month prior to dosing
- In the opinion of the investigator is unlikely to comply with the study protocol or is unsuitable for any reasons
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Define in Preclinical Systolic Dysfunction (PSD) With Renal Dysfunction, the Cardiorenal and Humoral Actions of Chronic Type V Phosphodiesterase (PDEV) Inhibition
To determine the effect of 12 weeks of chronic PDEV inhibition with Tadalafil versus placebo on basal cardiorenal and humoral function and on the integrated cardiorenal and humoral response to acute sodium loading in subjects with preclinical systolic dysfunction (PSD) and renal (kidney) dysfunction.
Read the detailed description
At the consent visit a blood draw will be done also a the 6 minute walk will be done to determine eligibility and a physical exam along with vital signs, height and weight will be done. Twenty-four hour urine collection will be obtained one day prior to the active study day.
Prior to initiation of the study, subjects will be stabilized for at least one week on a no added salt diet (120 milliequivalents of sodium/salt per day (mEq Na/day) which will be maintained throughout the study period.
Subjects will be admitted to the Clinical Research Unit (CRU)on the evening before the active study day. They will be able to order a no-added salt meal and will not have anything to eat after midnight until the last renal clearance blood draw the next day. Bladder scan will be carried out to assess for urine retention. On the active study day, subjects take their medications upon awakening, however, diabetics will hold their diabetic medications until after the last renal clearance test then they will be able to order a regular diet meal and take their diabetic medications. Subjects will be asked to drink 5ml/Kg (milliliters per kilogram of body weight) of water to insure sufficient urinary flow. A priming dose (calculated according to body size) of Iothalamate, to measure glomerular filtration rate (GFR) and para-amino-hippurate (PAH) to measure effective renal plasma flow (ERPF) is infused, followed by a constant rate IV sustaining dose (calculated according to estimated kidney function) of Iothalamate or PAH. The subjects will be asked to empty their bladder spontaneously every thirty minutes. Throughout the study, at the end of each 30-minute clearance period, subjects will be asked to drink an amount of water equivalent to the sum of the blood losses and the urinary flow. After an equilibration period of 45 minutes, a 30-minute baseline renal clearance will be carried out.
Blood pressure will be measured at 20-minute intervals by using automatic blood pressure cuff, and heart rate will be continuously monitored by electrocardiography. Echocardiography will be performed during these baseline clearances to determine left atrial (LA) and Left Ventricular (LV)volumes and systolic and diastolic function.
After the baseline clearance the acute saline load will be administered (normal saline 0.9% 0.25 ml/kg/min for 1 hour). During the 1 hour saline load, one 30-minute clearance (as outlined above) will be repeated with the subjects in supine position after which a second 30-minute clearance will be repeated with the subject sitting or the head of the bed up. As above, blood samples are collected midway during each clearance and urine samples are obtained every 30 minutes. Echocardiography will be repeated immediately after the end of the saline infusion.
At the completion of the baseline renal clearance periods and response to acute sodium load, subjects will be randomized to Tadalafil or placebo. Subjects will be randomized in a 2:1 fashion.
All subjects will take oral Tadalafil (5 mg) or placebo once a day. The blood pressure will be checked prior to administering the drug.Thereafter, both blood pressure and heart rate will continue to be monitored for the next 4 hours. If after the first dose of study drug if patient's systolic blood pressure is < 85 mmHg systolic and has symptoms of hypotension e.g. lightheadedness, dizziness, feeling faint, blurred vision, the study drug will be stopped however the subject will continue in the study. After 2 hours if blood pressure is >95 systolic then give 1 more (5 mg) of Tadalafil or placebo and monitor blood pressure for 2 hours. If blood pressure is >95 then dismiss subject on 2 (5 mg) tabs of tadalafil or placebo. If blood pressure is between 90 - 95 mmHg systolic, then dismiss on 1 (5 mg) tab of Tadalafil or placebo.
Patients will then be dismissed. Subjects will also have access to a 24-hour phone number should they have any questions or develop any side effects. Subjects will return after one week (+ or - 4 days) for electrolyte check. They will also receive a weekly phone call to review status.
At 2 weeks (± 5 days) from dismissal if blood pressure is> 100 than add 1 (5 mg) tab of Tadalafil or placebo to make a total of 3 (5mg) tabs of Tadalafil or placebo.
At 4 weeks(± 5 days) if blood pressure is > 100 add 1 (5 mg) tab to make a total of 4 (5 mg) Tadalafil or placebo.
After six weeks( + or - 5 days) , subjects will repeat blood draw for safety labs (total blood count and electrolytes). For patients who do not live more than 25 miles away we will try to arrange this visit with the patient's local physician.
At the end of the twelve-week study period (+ or - 8 days), subjects will be admitted to the Clinical Research Unit the afternoon prior to the renal clearance study. Echocardiography, renal clearance, humoral determination and acute saline load will be performed in the same manner as the baseline study. Subjects will also perform a 24-hour urine collection the day prior to their return visit for determination of sodium excretion and creatinine clearance. Subjects will be dismissed after the renal clearance study.
- Conditions
- Cardiomyopathy, Renal Impairment
- Being tested
- Tadalafil, Placebo
- Medical subject headings
- Cardiomyopathies, Renal Insufficiency
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
TadalafilDrug
Also called Tadalafil 5mg tablet
Tadalafil 5 mg tablet. Daily. Tadalafil dose varies from 5 mg to 20 mg for 12 weeks. If blood pressure is >95 then subject dismissed from the Clinical Research Unit (CRU) on 2 (5 mg) tabs of tadalafil or placebo. If blood pressure is between 90 - 95 mmHg systolic, then dismiss on 1 (5 mg) tab of Tadalafil. At 2 weeks (± 5 days) if blood pressure is> 100 than add 1 (5 mg) tab of Tadalafil to make a total of 3 (5mg) tabs of Tadalafil. At 4 weeks(± 5 days) if blood pressure is > 100 add 1 (5 mg) tab to make a total of 4 (5 mg) tablets of Tadalafil.
PlaceboDrug
Also called Placebo tablet
Placebo tablet. Daily. Placebo tablets made to match appearance of 5mg Tadalafil tablets. Placebo dose varies from 5 mg to 20 mg (1 to 4 tablets) for 12 weeks. If blood pressure is >95 then subject dismissed from CRU on 2 tabs of placebo. If blood pressure is between 90 - 95 mmHg systolic, then dismiss on 1 (5 mg) tablet of placebo. At 2 weeks (± 5 days) if blood pressure is> 100 than add 1 tab of placebo to make a total of 3 tablets of placebo. At 4 weeks(± 5 days) if blood pressure is > 100 add 1 (5 mg) tab to make a total of 4 tablets of placebo.
| Study group | Role | What they receive |
|---|---|---|
| Tadalafil | Active comparator | Subject will receive Tadalafil daily for a total of 12 weeks Receives: Drug: Tadalafil |
| Placebo | Placebo comparator | Subject will receive Placebo daily for a total of 12 weeks Receives: Drug: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in Urinary Sodium Excretion
Change in total urinary sodium excretion as measured by MEq/min
Measured: Baseline, 12 weeks
Secondary outcomes (2)
Change in Glomerular Filtration Rate (GFR)
Change in total GFR as measured by ml/1.72m2
Measured: Baseline, 12 weeks
Change in Urinary Cyclic Guanosine 3',5'-Monophosphate (cGMP) Hormone Excretion
Change in total urinary cGMP hormone excretion as measured by pmol/min
Measured: Baseline, 12 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted25 Oct 2013 (estimated)
- Study start9 Jan 2014
- Primary completionSep 2019
- Study completionSep 2019
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for CardiomyopathyStudies of the same condition, open and under way.
- More trials run by Mayo ClinicThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1/2
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 20 participants (actual)
Sponsor and investigators
- Lead sponsor
- Mayo Clinic
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Horng Chen, Mayo Clinic
- Investigators
- Horng H Chen, MD, Principal investigator, Mayo Clinic
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01970176
- Sponsor's protocol ID
- 11-004644
- Other IDs
- HL76611-07P3
- Acronym
- Aim2
- Status last verified
- Jun 2021
- First submitted
- 22 Oct 2013
- Last updated
- 11 Jun 2021
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
Publications
Hubers SA, Wan SH, Adel FW, Benike SL, Burnett JC Jr, Scott C, Chen HH. Cardiorenal Effects of Long-Term Phosphodiesterase V Inhibition in Pre-Heart Failure. J Am Heart Assoc. 2022 Jan 18;11(2):e022126. doi: 10.1161/JAHA.121.022126. Epub 2022 Jan 8.
PubMed 35001638
Study at a glance
From the registry record, last updated by the sponsor on 11 Jun 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Define in Preclinical Systolic Dysfunction (PSD) With Renal Dysfunction, the Cardiorenal and Humoral Actions of Chronic Type V Phosphodiesterase (PDEV) Inhibition
- ClinicalTrials.gov ID
- NCT01970176
- Acronym / sponsor ID
- Aim2 / 11-004644
- Conditions
- Cardiomyopathy, Renal Impairment
- Phase
- Phase 1/2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 20 participants (actual)
- Lead sponsor
- Mayo ClinicUniversity, hospital or other
- Study start
- 9 Jan 2014 (actual)
- Primary completion
- Sep 2019 (actual)
- Study completion
- Sep 2019 (actual)
- First posted
- 25 Oct 2013 (estimated)
- Results
- Posted 17 Jul 2020
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
To determine the effect of 12 weeks of chronic PDEV inhibition with Tadalafil versus placebo on basal cardiorenal and humoral function and on the integrated cardiorenal and humoral response to acute sodium loading in subjects with preclinical systolic dysfunction (PSD) and renal (kidney) dysfunction.
Detailed description
At the consent visit a blood draw will be done also a the 6 minute walk will be done to determine eligibility and a physical exam along with vital signs, height and weight will be done. Twenty-four hour urine collection will be obtained one day prior to the active study day.
Prior to initiation of the study, subjects will be stabilized for at least one week on a no added salt diet (120 milliequivalents of sodium/salt per day (mEq Na/day) which will be maintained throughout the study period.
Subjects will be admitted to the Clinical Research Unit (CRU)on the evening before the active study day. They will be able to order a no-added salt meal and will not have anything to eat after midnight until the last renal clearance blood draw the next day. Bladder scan will be carried out to assess for urine retention. On the active study day, subjects take their medications upon awakening, however, diabetics will hold their diabetic medications until after the last renal clearance test then they will be able to order a regular diet meal and take their diabetic medications. Subjects will be asked to drink 5ml/Kg (milliliters per kilogram of body weight) of water to insure sufficient urinary flow. A priming dose (calculated according to body size) of Iothalamate, to measure glomerular filtration rate (GFR) and para-amino-hippurate (PAH) to measure effective renal plasma flow (ERPF) is infused, followed by a constant rate IV sustaining dose (calculated according to estimated kidney function) of Iothalamate or PAH. The subjects will be asked to empty their bladder spontaneously every thirty minutes. Throughout the study, at the end of each 30-minute clearance period, subjects will be asked to drink an amount of water equivalent to the sum of the blood losses and the urinary flow. After an equilibration period of 45 minutes, a 30-minute baseline renal clearance will be carried out.
Blood pressure will be measured at 20-minute intervals by using automatic blood pressure cuff, and heart rate will be continuously monitored by electrocardiography. Echocardiography will be performed during these baseline clearances to determine left atrial (LA) and Left Ventricular (LV)volumes and systolic and diastolic function.
After the baseline clearance the acute saline load will be administered (normal saline 0.9% 0.25 ml/kg/min for 1 hour). During the 1 hour saline load, one 30-minute clearance (as outlined above) will be repeated with the subjects in supine position after which a second 30-minute clearance will be repeated with the subject sitting or the head of the bed up. As above, blood samples are collected midway during each clearance and urine samples are obtained every 30 minutes. Echocardiography will be repeated immediately after the end of the saline infusion.
At the completion of the baseline renal clearance periods and response to acute sodium load, subjects will be randomized to Tadalafil or placebo. Subjects will be randomized in a 2:1 fashion.
All subjects will take oral Tadalafil (5 mg) or placebo once a day. The blood pressure will be checked prior to administering the drug.Thereafter, both blood pressure and heart rate will continue to be monitored for the next 4 hours. If after the first dose of study drug if patient's systolic blood pressure is < 85 mmHg systolic and has symptoms of hypotension e.g. lightheadedness, dizziness, feeling faint, blurred vision, the study drug will be stopped however the subject will continue in the study. After 2 hours if blood pressure is >95 systolic then give 1 more (5 mg) of Tadalafil or placebo and monitor blood pressure for 2 hours. If blood pressure is >95 then dismiss subject on 2 (5 mg) tabs of tadalafil or placebo. If blood pressure is between 90 - 95 mmHg systolic, then dismiss on 1 (5 mg) tab of Tadalafil or placebo.
Patients will then be dismissed. Subjects will also have access to a 24-hour phone number should they have any questions or develop any side effects. Subjects will return after one week (+ or - 4 days) for electrolyte check. They will also receive a weekly phone call to review status.
At 2 weeks (± 5 days) from dismissal if blood pressure is> 100 than add 1 (5 mg) tab of Tadalafil or placebo to make a total of 3 (5mg) tabs of Tadalafil or placebo.
At 4 weeks(± 5 days) if blood pressure is > 100 add 1 (5 mg) tab to make a total of 4 (5 mg) Tadalafil or placebo.
After six weeks( + or - 5 days) , subjects will repeat blood draw for safety labs (total blood count and electrolytes). For patients who do not live more than 25 miles away we will try to arrange this visit with the patient's local physician.
At the end of the twelve-week study period (+ or - 8 days), subjects will be admitted to the Clinical Research Unit the afternoon prior to the renal clearance study. Echocardiography, renal clearance, humoral determination and acute saline load will be performed in the same manner as the baseline study. Subjects will also perform a 24-hour urine collection the day prior to their return visit for determination of sodium excretion and creatinine clearance. Subjects will be dismissed after the renal clearance study.
Study design
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Tadalafil | Active comparator | Drug: TadalafilSubject will receive Tadalafil daily for a total of 12 weeks |
| Placebo | Placebo comparator | Drug: PlaceboSubject will receive Placebo daily for a total of 12 weeks |
Who may qualify
- Ages
- 21 to 90 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- A total of 39 patients with PSD as defined by an ejection fraction of less than 40%, no clinical signs or symptoms of congestive heart failure, a minimal distance on 6-minute walk of equal or >450 meters will be recruited and calculated creatinine clearance of equal or less than 90 ml/min and greater than 30 ml/min, using the (MDRD-measurement of renal dysfunction, formula) assessed within the past 24 months. If the subject is not able to walk 450 meters due to pain in hips and knees and not fatigue or shortness of breath than they will still qualify for the protocol.
Key exclusion criteria (38 listed)
- Current or anticipated future need for nitrate therapy
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| TadalafilAlso: Tadalafil 5mg tabletTadalafil 5 mg tablet. Daily. Tadalafil dose varies from 5 mg to 20 mg for 12 weeks. If blood pressure is >95 then subject dismissed from the Clinical Research Unit (CRU) on 2 (5 mg) tabs of tadalafil or placebo. If blood pressure is between 90 - 95 mmHg systolic, then dismiss on 1 (5 mg) tab of Tadalafil. At 2 weeks (± 5 days) if blood pressure is> 100 than add 1 (5 mg) tab of Tadalafil to make a total of 3 (5mg) tabs of Tadalafil. At 4 weeks(± 5 days) if blood pressure is > 100 add 1 (5 mg) tab to make a total of 4 (5 mg) tablets of Tadalafil. | Drug | Tadalafil |
| PlaceboAlso: Placebo tabletPlacebo tablet. Daily. Placebo tablets made to match appearance of 5mg Tadalafil tablets. Placebo dose varies from 5 mg to 20 mg (1 to 4 tablets) for 12 weeks. If blood pressure is >95 then subject dismissed from CRU on 2 tabs of placebo. If blood pressure is between 90 - 95 mmHg systolic, then dismiss on 1 (5 mg) tablet of placebo. At 2 weeks (± 5 days) if blood pressure is> 100 than add 1 tab of placebo to make a total of 3 tablets of placebo. At 4 weeks(± 5 days) if blood pressure is > 100 add 1 (5 mg) tab to make a total of 4 tablets of placebo. | Drug | Placebo |
Primary outcome
Change in Urinary Sodium Excretion
Time frame: Baseline, 12 weeks
Change in total urinary sodium excretion as measured by MEq/min
2 secondary outcomes
Change in Glomerular Filtration Rate (GFR)
Time frame: Baseline, 12 weeks
Change in Urinary Cyclic Guanosine 3',5'-Monophosphate (cGMP) Hormone Excretion
Time frame: Baseline, 12 weeks
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 11 Jun 2021.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 35001638Hubers SA, Wan SH, Adel FW, Benike SL, Burnett JC Jr, Scott C, Chen HH. Cardiorenal Effects of Long-Term Phosphodiesterase V Inhibition in Pre-Heart Failure. J Am Heart Assoc. 2022 Jan 18;11(2):e022126. doi: 10.1161/JAHA.121.022126. Epub 2022 Jan 8.
- Mayo Clinic Clinical TrialsLink provided by the sponsor.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Horng H Chen, MD principal investigator
Mayo Clinic
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1/2 study testing Tadalafil in people with Cardiomyopathy and Renal Impairment, run by Mayo Clinic at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 38 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 11 Jun 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this combined phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 17 Jul 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change in Urinary Sodium Excretion (time frame: Baseline, 12 weeks). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01970176, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Jun 2021.