Chronic Kidney DiseasePhase 3PRIMONCT00497146
The PRIMO Study: Paricalcitol Capsules Benefits Renal Failure Induced Cardiac Morbidity in Subjects With Chronic Kidney Disease Stage 3/4
A Phase 3 study testing paricalcitol in people with Chronic Kidney Disease and Left Ventricular Hypertrophy, run by AbbVie (prior sponsor, Abbott) at 71 sites in 12 countries.
Trial summary
To evaluate the effects of paricalcitol capsules on cardiac structure and function over 48 weeks in patients with Stage 3/4 chronic kidney disease (CKD) who had left ventricular hypertrophy (LVH). Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Chronic Kidney Disease, Left Ventricular Hypertrophy
- What is being tested?
- paricalcitol
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 227 participants
- Where
- 71 sitesin 12 countries
- Study dates
- Feb 2008to Mar 2012
- Phase
- Phase 3
- 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 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Estimated glomerular filtration rate (GFR) between 15-60 mL/min/1.73 m^2
- Serum intact parathyroid hormone (iPTH) value between 50-300 pg/mL
- Corrected serum calcium level 8.0-10.0 mg/dL (2.0-2.5 mmol/L)
- Phosphorous level less than or equal to 5.2 mg/dL (1.68 mmol/L)
- Serum albumin greater than or equal to 3.0 g/dL (30 g/L)
- Echocardiogram results of:
Show all 10Show fewer
- Females: Left ventricular (LV) ejection fraction greater than or equal to 50% and septal wall thickness between 11-17 mm; and,
- Males: LV ejection fraction greater than or equal to 50% and septal wall thickness between 12-18 mm
- If the subject is receiving renin-angiotensin-aldosterone system (RAAS) inhibitors the dose must have been stable for greater than one month prior to the Screening Period. However, the subject may have switched to different brands but at equivalent doses as determined by the study physician during the month prior to the Screening Period.
- Subject must have a technically adequate baseline cardiac magnetic resonance imaging (MRI).
Who cannot join
- Subject has previously been on active vitamin D therapy within the four weeks prior to the Screening Period
- Pregnant or lactating females
- Subject is expected to initiate renal replacement therapy within one year
- Subject is taking calcitonin, bisphosphonates, cinacalcet, glucocorticoids (except topical or inhaled glucocorticoids)
- Subject had clinically significant coronary artery disease (CAD) within 3 months prior to the Screening Period, defined as either hospitalization for myocardial infarction (MI) or unstable angina; new onset angina with positive functional study or coronary angiogram revealing stenosis; or coronary revascularization procedure.
- Subject had major cardiac valve abnormality linked with LVH and/or diastolic dysfunction, defined as either aortic valve area ≤ 1.5 cm^2 or a mean gradient of > 20 mmHg; or regurgitation lesions; more than moderate mitral regurgitation, or more than moderate aortic regurgitation.
Show all 10Show fewer
- Subject had asymmetric septal hypertrophy defined as septal wall thickness/posterior wall thickness ratio > 1.5 based on screening echocardiogram.
- Subject had a severe cerebrovascular accident (CVA) within the last 3 months (e.g., hemorrhagic) prior to screening.
- Subject had full remission from a malignancy for less than 1 year except completely excised non-melanoma skin cancer (e.g., basal or squamous carcinoma) or any history of bone metastasis.
- Subject had comorbid conditions (e.g., advanced malignancy, advanced liver disease) with a life expectancy less than 1 year.
Trial locations and contacts
71 sites in 12 countries.
71 sites in 12 countries
United States30 sites
Site Reference ID/Investigator# 7826
Allentown, Pennsylvania, 18103
Site Reference ID/Investigator# 7816
Bethesda, Maryland, 20814
Site Reference ID/Investigator# 8865
Chattanooga, Tennessee, 37404
Site Reference ID/Investigator# 7823
Chicago, Illinois, 60617
Site Reference ID/Investigator# 7727
Denver, Colorado, 80230
Site Reference ID/Investigator# 7245
Detroit, Michigan, 48202
Site Reference ID/Investigator# 7249
Evergreen Park, Illinois, 60805
Site Reference ID/Investigator# 7263
Fairfax, Virginia, 22033
Site Reference ID/Investigator# 7261
Houston, Texas, 77004
Site Reference ID/Investigator# 8058
Houston, Texas, 77099
Site Reference ID/Investigator# 8868
Kansas City, Missouri, 64128
Site Reference ID/Investigator# 18882
Meridian, Idaho, 83642
Site Reference ID/Investigator# 8861
Miami, Florida, 33136
Site Reference ID/Investigator# 7825
Murray, Utah, 84157-7000
Site Reference ID/Investigator# 14442
Omaha, Nebraska, 68131-3403
Site Reference ID/Investigator# 7260
Orlando, Florida, 32806
Site Reference ID/Investigator# 8062
Phoenix, Arizona, 85012
Site Reference ID/Investigator# 8866
Provo, Utah, 84604
Site Reference ID/Investigator# 18881
Rockville, Maryland, 20852
Site Reference ID/Investigator# 7248
Royal Oak, Michigan, 48073
Site Reference ID/Investigator# 7830
San Antonio, Texas, 78229
Site Reference ID/Investigator# 8864
San Diego, California, 92123
Site Reference ID/Investigator# 7257
San Dimas, California, 91773
Site Reference ID/Investigator# 7817
Springfield, Massachusetts, 01107
Site Reference ID/Investigator# 7828
St Louis, Missouri, 63110
Site Reference ID/Investigator# 7725
Tampa, Florida, 33603
Site Reference ID/Investigator# 7824
Tampa, Florida, 33614
Site Reference ID/Investigator# 8867
Tempe, Arizona, 85284
Site Reference ID/Investigator# 6567
Winston-Salem, North Carolina, 27103
Site Reference ID/Investigator# 7262
Winston-Salem, North Carolina, 27157-1045
Australia6 sites
Site Reference ID/Investigator# 8493
Adelaide, 5000
Site Reference ID/Investigator# 8506
Liverpool, 2170
Site Reference ID/Investigator# 8507
Parkville, 3050
Site Reference ID/Investigator# 9581
Reservoir, 3073
Site Reference ID/Investigator# 9582
Richmond, 3121
Site Reference ID/Investigator# 8500
Westmead, 2145
Puerto Rico6 sites
Site Reference ID/Investigator# 7702
Humacao, 00791
Site Reference ID/Investigator# 7269
Ponce, 00717-1322
Site Reference ID/Investigator# 7818
Rio Piedras, 00935
Site Reference ID/Investigator# 7270
San Juan, 00909
Site Reference ID/Investigator# 7712
San Juan, 00918
Site Reference ID/Investigator# 7266
Toa Baja, 00949
Germany5 sites
Site Reference ID/Investigator# 6692
Dortmund, 44263
Site Reference ID/Investigator# 9723
Düsseldorf, 40210
Site Reference ID/Investigator# 6630
Lübeck, 23538
Site Reference ID/Investigator# 7268
Nettetal, 41334
Site Reference ID/Investigator# 6622
Würzburg, 97080
Spain5 sites
Site Reference ID/Investigator# 8883
Barcelona, 08003
Site Reference ID/Investigator# 8358
Barcelona, 08035
Site Reference ID/Investigator# 8355
Madrid, 28007
Site Reference ID/Investigator# 8356
Madrid, 28041
Site Reference ID/Investigator# 8882
Santander (Cantabria), 39008
Russia4 sites
Site Reference ID/Investigator# 22682
Moscow, 105229
Site Reference ID/Investigator# 8009
Moscow, 123182
Site Reference ID/Investigator# 7251
Moscow, 125284
Site Reference ID/Investigator# 7250
Moscow, 127473
Taiwan4 sites
Site Reference ID/Investigator# 8884
Taipei, 10002
Site Reference ID/Investigator# 8228
Taipei
Site Reference ID/Investigator# 8229
Taoyuan
Site Reference ID/Investigator# 8234
Xinzhuang
Czechia3 sites
Site Reference ID/Investigator# 8245
Prague, 12808
Site Reference ID/Investigator# 8246
Prague, 14021
Site Reference ID/Investigator# 8499
Prague, 16900
Italy3 sites
Site Reference ID/Investigator# 10626
Lido di Camaiore, 55041
Site Reference ID/Investigator# 8070
Naples, 80131
Site Reference ID/Investigator# 8060
Rome, 00165
Romania3 sites
Site Reference ID/Investigator# 8881
Bucharest, 010731
Site Reference ID/Investigator# 8518
Bucharest, 022328
Site Reference ID/Investigator# 8514
Iași, 700503
United Kingdom1 site
Site Reference ID/Investigator# 8823
Coventry, CV2 2DX
About this study
Official title: The PRIMO Study: Paricalcitol Capsules Benefits in Renal Failure Induced Cardiac Morbidity in Subjects With Chronic Kidney Disease Stage 3/4
To evaluate the effects of paricalcitol capsules on cardiac structure and function over 48 weeks in patients with Stage 3/4 chronic kidney disease (CKD) who had left ventricular hypertrophy (LVH).
Read the detailed description
Patients who met the inclusion criteria and did not meet any of the exclusion criteria were randomized in a 1:1 ratio to each treatment group to receive paricalcitol capsules or placebo. A stratified randomization scheme was used to ensure balance among treatment groups with respect to country, gender, and baseline renin angiotensin-aldosterone system (RAAS) inhibitor use (yes/no).
Participants who completed the 48-Week Treatment Period could continue on in the ongoing Long-term Follow-up Period that was to last 18 months, with study visits at 6 months, 12 months and 18 months post Treatment Week 48 Visit. Participants did not receive study drug, nor were they to have undergone echocardiogram/MRI procedures during the Long-term Follow-up Period.
- Being tested
- paricalcitol, placebo
- Keywords
- paricalcitol, Zemplar, PRIMO, Chronic Kidney Disease Stage 3B/4
- Medical subject headings
- Renal Insufficiency, Chronic, Hypertrophy, Left Ventricular
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
paricalcitolDrug
Also called ABT-358, Zemplar
2 µg capsule
placeboDrug
placebo capsule
| Study group | Role | What they receive |
|---|---|---|
| Paricalcitol | Experimental | Participants received paricalcitol capsules 2 µg once a day (two 1 µg paricalcitol capsules), for up to 48 weeks. Participants who completed the 48-week Treatment Period could continue in the Long-term Follow-up Period for an additional 18 months. Participants did not receive study drug during the Long-term Follow-up Period. Receives: Drug: paricalcitol |
| Placebo | Placebo comparator | Participants received 2 placebo capsules once a day for up to 48 weeks. Participants who completed the 48-week Treatment Period could continue in the Long-term Follow-up Period for an additional 18 months. Participants did not receive study drug during the Long-term Follow-up Period. Receives: Drug: placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change From Baseline in Left Ventricular Mass Index (LVMI) Over 48 Weeks Measured by Cardiac Magnetic Resonance Imaging (MRI)
The Central Cardiac MRI Core Laboratory (CCL) interpreted and analyzed all cardiac MRI data. Left Ventricular Mass (LVM) was normalized to the participant's height by the following equation to obtain LVMI: LVM (grams) divided by height (meters)^2.7.
Measured: Baseline to 48 weeks
Secondary outcomes (16)
Change in Diastolic Mitral Annular Relaxation Velocity (E')
Diastolic mitral annular relaxation velocity (lateral E wave velocity; E') is a measure of diastolic function.
Measured: Baseline to 48 weeks
Change in Ratio of Peak E Wave Velocity to Lateral E Wave Velocity (E/E')
The ratio of peak E wave velocity to lateral E wave velocity (E/E') is a measure of diastolic function.
Measured: Baseline to 48 weeks
Change in E-wave Deceleration Time (DT)
E-wave deceleration time (DT) is a measure of diastolic function.
Measured: Baseline to 48 weeks
Change in Isovolumetric Relaxation Time (IVRT)
Isovolumetric relaxation time (IVRT) is a measure of diastolic function.
Measured: Baseline to 48 weeks
Change in Left Atrial Volume
Left atrial volume is a measure of diastolic function.
Measured: Baseline to 48 weeks
Change in Plasma Triiodothyronine (T3)
Plasma triiodothyronine (T3) is a biological and inflammatory marker.
Measured: Baseline to 48 weeks
Change in Interleukin-6 (IL-6)
Interleukin-6 (IL-6) is a biological and inflammatory marker.
Measured: Baseline to 48 weeks
Change in Troponin-T
Troponin-T is a biological and inflammatory marker.
Measured: Baseline to 48 weeks
Change in B-type Natriuretic Peptide (BNP)
B-type natriuretic peptide (BNP) is a biological and inflammatory marker.
Measured: Baseline to 48 weeks
Change in High Sensitivity C-reactive Protein (hsCRP)
High sensitivity C-reactive protein (hsCRP) is a biological and inflammatory marker.
Measured: Baseline to 48 weeks
Change in Progression of Thoraco-abdominal Aortic Plaque Volume
Change from baseline to Week 48 in thoraco-abdominal aortic plaque volume.
Measured: Baseline to 48 weeks
Change in Progression of Thoraco-abdominal Aortic Wall Volume
Change from baseline to Week 48 in thoraco-abdominal aortic wall volume
Measured: Baseline to 48 weeks
Change in Progression of Aortic Compliance
Change from baseline to Week 48 in aortic compliance.
Measured: Baseline to 48 weeks
Change in Progression of Left Ventricular End-systolic Volume Index
Change from baseline to Week 48 in left ventricular end-systolic volume index.
Measured: Baseline to 48 weeks
Change in Progression of Left Ventricular End-diastolic Volume Index
Change from baseline to Week 48 in left ventricular end-diastolic volume index.
Measured: Baseline to 48 weeks
Change in Progression of Left Ventricular Ejection Fraction
Change from baseline to Week 48 in left ventricular ejection fraction.
Measured: Baseline to 48 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Jul 2007 (estimated)
- Study startFeb 2008
- Primary completionSep 2010
- Study completionMar 2012
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 (4)Papers the sponsor has linked to this study.
- Other trials for Chronic Kidney DiseaseStudies of the same condition, open and under way.
- 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 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 227 participants (actual)
Sponsor and investigators
- Lead sponsor
- AbbVie (prior sponsor, Abbott)
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- Massachusetts General Hospital
- Responsible party
- Sponsor
- Investigators
- Ann Eldred, MD, Study director, AbbVie
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00497146
- Sponsor's protocol ID
- M10-030
- Other IDs
- 2007-001689-34
- Acronym
- PRIMO
- Status last verified
- Mar 2013
- First submitted
- 3 Jul 2007
- Last updated
- 12 Mar 2013
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
Publications
Tamez H, Zoccali C, Packham D, Wenger J, Bhan I, Appelbaum E, Pritchett Y, Chang Y, Agarwal R, Wanner C, Lloyd-Jones D, Cannata J, Thompson BT, Andress D, Zhang W, Singh B, Zehnder D, Pachika A, Manning WJ, Shah A, Solomon SD, Thadhani R. Vitamin D reduces left atrial volume in patients with left ventricular hypertrophy and chronic kidney disease. Am Heart J. 2012 Dec;164(6):902-9.e2. doi: 10.1016/j.ahj.2012.09.018. Epub 2012 Oct 29.
PubMed 23194491Thadhani R, Appelbaum E, Pritchett Y, Chang Y, Wenger J, Tamez H, Bhan I, Agarwal R, Zoccali C, Wanner C, Lloyd-Jones D, Cannata J, Thompson BT, Andress D, Zhang W, Packham D, Singh B, Zehnder D, Shah A, Pachika A, Manning WJ, Solomon SD. Vitamin D therapy and cardiac structure and function in patients with chronic kidney disease: the PRIMO randomized controlled trial. JAMA. 2012 Feb 15;307(7):674-84. doi: 10.1001/jama.2012.120.
PubMed 22337679Thadhani R, Appelbaum E, Chang Y, Pritchett Y, Bhan I, Agarwal R, Zoccali C, Wanner C, Lloyd-Jones D, Cannata J, Thompson T, Audhya P, Andress D, Zhang W, Ye J, Packham D, Singh B, Zehnder D, Manning WJ, Pachika A, Solomon SD. Vitamin D receptor activation and left ventricular hypertrophy in advanced kidney disease. Am J Nephrol. 2011;33(2):139-49. doi: 10.1159/000323551. Epub 2011 Jan 18.
PubMed 21242674Thadhani R. Targeted ablation of the vitamin D 1alpha-hydroxylase gene: getting to the heart of the matter. Kidney Int. 2008 Jul;74(2):141-3. doi: 10.1038/ki.2008.219.
PubMed 18591942
Study at a glance
From the registry record, last updated by the sponsor on 12 Mar 2013. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The PRIMO Study: Paricalcitol Capsules Benefits in Renal Failure Induced Cardiac Morbidity in Subjects With Chronic Kidney Disease Stage 3/4
- ClinicalTrials.gov ID
- NCT00497146
- Acronym / sponsor ID
- PRIMO / M10-030
- Keywords
- paricalcitol, Zemplar, PRIMO, Chronic Kidney Disease Stage 3B/4
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 227 participants (actual)
- Lead sponsor
- AbbVie (prior sponsor, Abbott)Industry (pharma, biotech, devices)
- Collaborators
- Massachusetts General Hospital
- Study start
- Feb 2008
- Primary completion
- Sep 2010 (actual)
- Study completion
- Mar 2012 (actual)
- First posted
- 6 Jul 2007 (estimated)
- Results
- Posted 23 Dec 2011
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
To evaluate the effects of paricalcitol capsules on cardiac structure and function over 48 weeks in patients with Stage 3/4 chronic kidney disease (CKD) who had left ventricular hypertrophy (LVH).
Detailed description
Patients who met the inclusion criteria and did not meet any of the exclusion criteria were randomized in a 1:1 ratio to each treatment group to receive paricalcitol capsules or placebo. A stratified randomization scheme was used to ensure balance among treatment groups with respect to country, gender, and baseline renin angiotensin-aldosterone system (RAAS) inhibitor use (yes/no).
Participants who completed the 48-Week Treatment Period could continue on in the ongoing Long-term Follow-up Period that was to last 18 months, with study visits at 6 months, 12 months and 18 months post Treatment Week 48 Visit. Participants did not receive study drug, nor were they to have undergone echocardiogram/MRI procedures during the Long-term Follow-up Period.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Paricalcitol | Experimental | Drug: paricalcitolParticipants received paricalcitol capsules 2 µg once a day (two 1 µg paricalcitol capsules), for up to 48 weeks. Participants who completed the 48-week Treatment Period could continue in the Long-term Follow-up Period for an additional 18 months. Participants did not receive study drug during the Long-term Follow-up Period. |
| Placebo | Placebo comparator | Drug: placeboParticipants received 2 placebo capsules once a day for up to 48 weeks. Participants who completed the 48-week Treatment Period could continue in the Long-term Follow-up Period for an additional 18 months. Participants did not receive study drug during the Long-term Follow-up Period. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (10 listed)
- Estimated glomerular filtration rate (GFR) between 15-60 mL/min/1.73 m^2
- Serum intact parathyroid hormone (iPTH) value between 50-300 pg/mL
- Corrected serum calcium level 8.0-10.0 mg/dL (2.0-2.5 mmol/L)
- Phosphorous level less than or equal to 5.2 mg/dL (1.68 mmol/L)
- Serum albumin greater than or equal to 3.0 g/dL (30 g/L)
Key exclusion criteria (10 listed)
- Subject has previously been on active vitamin D therapy within the four weeks prior to the Screening Period
- Pregnant or lactating females
- Subject is expected to initiate renal replacement therapy within one year
- Subject is taking calcitonin, bisphosphonates, cinacalcet, glucocorticoids (except topical or inhaled glucocorticoids)
- Subject had clinically significant coronary artery disease (CAD) within 3 months prior to the Screening Period, defined as either hospitalization for myocardial infarction (MI) or unstable angina; new onset angina with positive functional study or coronary angiogram revealing stenosis; or coronary revascularization procedure.
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 |
|---|---|---|
| paricalcitolAlso: ABT-358, Zemplar2 µg capsule | Drug | Paricalcitol |
| placeboplacebo capsule | Drug | Placebo |
Primary outcome
Change From Baseline in Left Ventricular Mass Index (LVMI) Over 48 Weeks Measured by Cardiac Magnetic Resonance Imaging (MRI)
Time frame: Baseline to 48 weeks
The Central Cardiac MRI Core Laboratory (CCL) interpreted and analyzed all cardiac MRI data. Left Ventricular Mass (LVM) was normalized to the participant's height by the following equation to obtain LVMI: LVM (grams) divided by height (meters)^2.7.
16 secondary outcomes
Change in Diastolic Mitral Annular Relaxation Velocity (E')
Time frame: Baseline to 48 weeks
Change in Ratio of Peak E Wave Velocity to Lateral E Wave Velocity (E/E')
Time frame: Baseline to 48 weeks
Change in E-wave Deceleration Time (DT)
Time frame: Baseline to 48 weeks
Change in Isovolumetric Relaxation Time (IVRT)
Time frame: Baseline to 48 weeks
Change in Left Atrial Volume
Time frame: Baseline to 48 weeks
Change in Plasma Triiodothyronine (T3)
Time frame: Baseline to 48 weeks
Change in Interleukin-6 (IL-6)
Time frame: Baseline to 48 weeks
Change in Troponin-T
Time frame: Baseline to 48 weeks
Change in B-type Natriuretic Peptide (BNP)
Time frame: Baseline to 48 weeks
Change in High Sensitivity C-reactive Protein (hsCRP)
Time frame: Baseline to 48 weeks
Change in Progression of Thoraco-abdominal Aortic Plaque Volume
Time frame: Baseline to 48 weeks
Change in Progression of Thoraco-abdominal Aortic Wall Volume
Time frame: Baseline to 48 weeks
Change in Progression of Aortic Compliance
Time frame: Baseline to 48 weeks
Change in Progression of Left Ventricular End-systolic Volume Index
Time frame: Baseline to 48 weeks
Change in Progression of Left Ventricular End-diastolic Volume Index
Time frame: Baseline to 48 weeks
Change in Progression of Left Ventricular Ejection Fraction
Time frame: Baseline to 48 weeks
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 Mar 2013.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 23194491Tamez H, Zoccali C, Packham D, Wenger J, Bhan I, Appelbaum E, Pritchett Y, Chang Y, Agarwal R, Wanner C, Lloyd-Jones D, Cannata J, Thompson BT, Andress D, Zhang W, Singh B, Zehnder D, Pachika A, Manning WJ, Shah A, Solomon SD, Thadhani R. Vitamin D reduces left atrial volume in patients with left ventricular hypertrophy and chronic kidney disease. Am Heart J. 2012 Dec;164(6):902-9.e2. doi: 10.1016/j.ahj.2012.09.018. Epub 2012 Oct 29.
- Derived from this study: PubMed 22337679Thadhani R, Appelbaum E, Pritchett Y, Chang Y, Wenger J, Tamez H, Bhan I, Agarwal R, Zoccali C, Wanner C, Lloyd-Jones D, Cannata J, Thompson BT, Andress D, Zhang W, Packham D, Singh B, Zehnder D, Shah A, Pachika A, Manning WJ, Solomon SD. Vitamin D therapy and cardiac structure and function in patients with chronic kidney disease: the PRIMO randomized controlled trial. JAMA. 2012 Feb 15;307(7):674-84. doi: 10.1001/jama.2012.120.
- Derived from this study: PubMed 21242674Thadhani R, Appelbaum E, Chang Y, Pritchett Y, Bhan I, Agarwal R, Zoccali C, Wanner C, Lloyd-Jones D, Cannata J, Thompson T, Audhya P, Andress D, Zhang W, Ye J, Packham D, Singh B, Zehnder D, Manning WJ, Pachika A, Solomon SD. Vitamin D receptor activation and left ventricular hypertrophy in advanced kidney disease. Am J Nephrol. 2011;33(2):139-49. doi: 10.1159/000323551. Epub 2011 Jan 18.
- Derived from this study: PubMed 18591942Thadhani R. Targeted ablation of the vitamin D 1alpha-hydroxylase gene: getting to the heart of the matter. Kidney Int. 2008 Jul;74(2):141-3. doi: 10.1038/ki.2008.219.
- Related InfoLink 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.
Ann Eldred, MD study director
AbbVie
71 sites in 12 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing paricalcitol in people with Chronic Kidney Disease and Left Ventricular Hypertrophy, run by AbbVie (prior sponsor, Abbott) at 71 sites in 12 countries.
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 10 inclusion and 10 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 12 Mar 2013. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 71 sites in United States, Australia, Puerto Rico, Germany, Spain and 7 more countries. 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 phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
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 23 Dec 2011). 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 From Baseline in Left Ventricular Mass Index (LVMI) Over 48 Weeks Measured by Cardiac Magnetic Resonance Imaging (MRI) (time frame: Baseline to 48 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 NCT00497146, which also lists 4 linked publications.
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 12 Mar 2013.