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Heart Failure, CongestivePhase 3NCT00328692

PROTECT-1: A Study of the Selective A1 Adenosine Receptor Antagonist KW-3902 for Patients Hospitalized With Acute HF and Volume Overload to Assess Treatment Effect on Congestion and Renal Function

A Phase 3 study testing rolofylline in people with Heart Failure, Congestive, run by NovaCardia, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA).

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The study is being conducted to examine whether KW-3902IV will result in greater improvement in signs and symptoms of heart failure, with less treatment failure than standard therapy, when it is added to IV loop diuretics in subjects with acute heart failure syndrome and renal impairment. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Heart Failure, Congestive
What is being tested?
rolofylline
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
932 participants
Where
No sites listed yet
Study dates
Aug 2006to Jul 2009
Phase
Phase 3
Are there results?
None posted in the registry

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

  • History of heart failure of at least 14 days duration for which diuretic therapy has been prescribed
  • Hospitalized for acute heart failure syndrome requiring IV diuretic therapy.
  • Impaired renal function

Who cannot join

  • Acute contrast induced nephropathy
  • Ongoing or planned IV therapy for heart failure with positive inotropic agents, vasopressors, vasodilators, or mechanical support with the exception of IV nitrates
  • BNP <500pg/mL or NT-pro-BNP <2000 pg/mL
  • Ongoing or planned treatment with ultrafiltration, hemofiltration, or dialysis
  • Severe pulmonary disease
  • Significant stenotic valvular disease
Show all 25Show fewer
  • Heart transplant recipient or admitted for cardiac transplantation
  • Clinical evidence of acute coronary syndrome in the 2 weeks prior to screening
  • Heart failure due to significant arrhythmias
  • Acute myocarditis or hypertrophic obstructive, restrictive, or constrictive cardiomyopathy.
  • Known hepatic impairment
  • Non-cardiac pulmonary edema, including suspected sepsis
  • Allergy to soybean oil or eggs
  • History of seizure
  • Stroke within 2 years
  • History of or current brain tumor of any etiology
  • Brain surgery within 2 years
  • Encephalitis/meningitis within 2 years
  • History of penetrating head trauma
  • Closed head injury with loss of consciousness (LOC) over 30 minutes within 2 years
  • History of, or at risk for, alcohol withdrawal seizures
  • Advanced Alzheimer's disease
  • Advanced multiple sclerosis
  • Hgb <8 g/dL, Hct <25%, or the need for a blood transfusion
  • Previous exposure to KW-3902

About this study

Official title: A Multicenter, Randomized, Double-blind, Placebo-controlled Study of the Effects of KW-3902 Injectable Emulsion on Heart Failure Signs and Symptoms and Renal Function in Subjects With Acute Heart Failure Syndrome and Renal Impairment Who Are Hospitalized for Volume Overload and Require Intravenous Diuretic Therapy

The study is being conducted to examine whether KW-3902IV will result in greater improvement in signs and symptoms of heart failure, with less treatment failure than standard therapy, when it is added to IV loop diuretics in subjects with acute heart failure syndrome and renal impairment.

Read the detailed description

Loop diuretics are generally first line therapy in patients hospitalized with acute heart failure syndrome (AHFS). Their use far exceeds that of vasoactive agents. Tubuloglomerular feedback (TGF) is the body's compensatory response to avoid excess fluid loss, and it is activated when elevated sodium concentrations in the distal tubule are detected. TGF is proposed as a contributing factor for the observed diuretic resistance that occurs in patients with heart failure. Higher doses of diuretics are required to overcome the decreased natriuresis and reduced RBF induced by TGF. Ultimately, this action creates a vicious cycle of worsening renal function and diminished diuretic effectiveness.

The primary pharmacologic rationale for the use of KW-3902 in subjects with AHFS is its mechanism of action as an adenosine A1 receptor antagonist. TGF promotes release of adenosine, and adenosine binding to A1 receptors causes vasoconstriction of the afferent arteriole, decreased RBF, and enhanced sodium reabsorption by the proximal tubule. This action results in a decrease in GFR, diminished renal function, and sodium and water retention. Blocking adenosine A1 receptors via a selective adenosine receptor antagonist may limit sodium reabsorption by the proximal tubules without triggering TGF. It promotes vasodilation of the afferent arteriole of the glomerulus, and thus, this strategy offers the potential to overcome diuretic resistance or enhance diuretic responsiveness. It may also reduce the need for increasing diuretic doses that have been associated with worse outcomes.

The objectives of this study are to evaluate the effect of KW-3902IV in addition to intravenous (IV) loop diuretics (such as furosemide) on heart failure signs and symptoms, renal function, and safety in subjects hospitalized with AHFS, volume overload, and renal impairment, and to estimate and compare within-trial medical resource utilization and direct medical costs between patients treated with KW-3902IV versus placebo.

Being tested
rolofylline, Comparator: Placebo (unspecified)
Keywords
heart failure, diuretic, renal impairment, renal function
Medical subject headings
Heart Failure, Renal Insufficiency

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • rolofyllineDrug

    Also called KW-3902IV, MK7418

    rolofylline 30 mg IV QD; 3 days

  • Comparator: Placebo (unspecified)Drug

    rolofyline Pbo 30 mg IV QD; 3 days

Study groups in NCT00328692
Study groupRoleWhat they receive
2ExperimentalNot described
Receives: Drug: rolofylline
1Placebo comparatorNot described
Receives: Drug: Comparator: Placebo (unspecified)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. effect on heart failure signs and symptoms

    Measured: 3 days

  2. effect on renal function

    Measured: 3 days

Secondary outcomes (2)
  1. safety

    Measured: 3 days

  2. within trial medical costs compared to placebo

    Measured: 3 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted22 May 2006 (estimated)
  2. Study startAug 2006
  3. Primary completionJul 2009
  4. Study completionJul 2009

Resources

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
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
932 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00328692
Sponsor's protocol ID
CKI-301
Other IDs
2007_803, MK7418-301
Status last verified
Oct 2009
First submitted
19 May 2006
Last updated
9 Oct 2009
Results posted
No
Data monitoring committee
Yes

Publications

  • Metra M, Cotter G, Senger S, Edwards C, Cleland JG, Ponikowski P, Cursack GC, Milo O, Teerlink JR, Givertz MM, O'Connor CM, Dittrich HC, Bloomfield DM, Voors AA, Davison BA. Prognostic Significance of Creatinine Increases During an Acute Heart Failure Admission in Patients With and Without Residual Congestion: A Post Hoc Analysis of the PROTECT Data. Circ Heart Fail. 2018 May;11(5):e004644. doi: 10.1161/CIRCHEARTFAILURE.117.004644.

    PubMed 29748350
  • Tromp J, Khan MAF, Mentz RJ, O'Connor CM, Metra M, Dittrich HC, Ponikowski P, Teerlink JR, Cotter G, Davison B, Cleland JGF, Givertz MM, Bloomfield DM, Van Veldhuisen DJ, Hillege HL, Voors AA, van der Meer P. Biomarker Profiles of Acute Heart Failure Patients With a Mid-Range Ejection Fraction. JACC Heart Fail. 2017 Jul;5(7):507-517. doi: 10.1016/j.jchf.2017.04.007. Epub 2017 Jun 14.

    PubMed 28624483
  • Matsue Y, van der Meer P, Damman K, Metra M, O'Connor CM, Ponikowski P, Teerlink JR, Cotter G, Davison B, Cleland JG, Givertz MM, Bloomfield DM, Dittrich HC, Gansevoort RT, Bakker SJ, van der Harst P, Hillege HL, van Veldhuisen DJ, Voors AA. Blood urea nitrogen-to-creatinine ratio in the general population and in patients with acute heart failure. Heart. 2017 Mar;103(6):407-413. doi: 10.1136/heartjnl-2016-310112. Epub 2016 Sep 22.

    PubMed 27658757
  • Tromp J, Meyer S, Mentz RJ, O'Connor CM, Metra M, Dittrich HC, Ponikowski P, Teerlink JR, Cotter G, Davison B, Cleland JG, Givertz MM, Bloomfield DM, van Veldhuisen DJ, Hillege HL, Voors AA, van der Meer P. Acute heart failure in the young: Clinical characteristics and biomarker profiles. Int J Cardiol. 2016 Oct 15;221:1067-72. doi: 10.1016/j.ijcard.2016.06.339. Epub 2016 Jul 5.

    PubMed 27448534
  • Givertz MM, Postmus D, Hillege HL, Mansoor GA, Massie BM, Davison BA, Ponikowski P, Metra M, Teerlink JR, Cleland JG, Dittrich HC, O'Connor CM, Cotter G, Voors AA. Renal function trajectories and clinical outcomes in acute heart failure. Circ Heart Fail. 2014 Jan;7(1):59-67. doi: 10.1161/CIRCHEARTFAILURE.113.000556. Epub 2013 Nov 26.

    PubMed 24281137
  • Cleland JG, Chiswell K, Teerlink JR, Stevens S, Fiuzat M, Givertz MM, Davison BA, Mansoor GA, Ponikowski P, Voors AA, Cotter G, Metra M, Massie BM, O'Connor CM. Predictors of postdischarge outcomes from information acquired shortly after admission for acute heart failure: a report from the Placebo-Controlled Randomized Study of the Selective A1 Adenosine Receptor Antagonist Rolofylline for Patients Hospitalized With Acute Decompensated Heart Failure and Volume Overload to Assess Treatment Effect on Congestion and Renal Function (PROTECT) Study. Circ Heart Fail. 2014 Jan;7(1):76-87. doi: 10.1161/CIRCHEARTFAILURE.113.000284. Epub 2013 Nov 26.

    PubMed 24281134
  • Teerlink JR, Iragui VJ, Mohr JP, Carson PE, Hauptman PJ, Lovett DH, Miller AB, Pina IL, Thomson S, Varosy PD, Zile MR, Cleland JG, Givertz MM, Metra M, Ponikowski P, Voors AA, Davison BA, Cotter G, Wolko D, Delucca P, Salerno CM, Mansoor GA, Dittrich H, O'Connor CM, Massie BM. The safety of an adenosine A(1)-receptor antagonist, rolofylline, in patients with acute heart failure and renal impairment: findings from PROTECT. Drug Saf. 2012 Mar 1;35(3):233-44. doi: 10.2165/11594680-000000000-00000.

    PubMed 22339573
  • O'Connor CM, Fiuzat M, Lombardi C, Fujita K, Jia G, Davison BA, Cleland J, Bloomfield D, Dittrich HC, Delucca P, Givertz MM, Mansoor G, Ponikowski P, Teerlink JR, Voors AA, Massie BM, Cotter G, Metra M. Impact of serial troponin release on outcomes in patients with acute heart failure: analysis from the PROTECT pilot study. Circ Heart Fail. 2011 Nov;4(6):724-32. doi: 10.1161/CIRCHEARTFAILURE.111.961581. Epub 2011 Sep 6.

    PubMed 21900185
  • Voors AA, Dittrich HC, Massie BM, DeLucca P, Mansoor GA, Metra M, Cotter G, Weatherley BD, Ponikowski P, Teerlink JR, Cleland JG, O'Connor CM, Givertz MM. Effects of the adenosine A1 receptor antagonist rolofylline on renal function in patients with acute heart failure and renal dysfunction: results from PROTECT (Placebo-Controlled Randomized Study of the Selective Adenosine A1 Receptor Antagonist Rolofylline for Patients Hospitalized with Acute Decompensated Heart Failure and Volume Overload to Assess Treatment Effect on Congestion and Renal Function). J Am Coll Cardiol. 2011 May 10;57(19):1899-907. doi: 10.1016/j.jacc.2010.11.057.

    PubMed 21545947
  • Massie BM, O'Connor CM, Metra M, Ponikowski P, Teerlink JR, Cotter G, Weatherley BD, Cleland JG, Givertz MM, Voors A, DeLucca P, Mansoor GA, Salerno CM, Bloomfield DM, Dittrich HC; PROTECT Investigators and Committees. Rolofylline, an adenosine A1-receptor antagonist, in acute heart failure. N Engl J Med. 2010 Oct 7;363(15):1419-28. doi: 10.1056/NEJMoa0912613.

    PubMed 20925544
  • Cotter G, Dittrich HC, Weatherley BD, Bloomfield DM, O'Connor CM, Metra M, Massie BM; Protect Steering Committee, Investigators, and Coordinators. The PROTECT pilot study: a randomized, placebo-controlled, dose-finding study of the adenosine A1 receptor antagonist rolofylline in patients with acute heart failure and renal impairment. J Card Fail. 2008 Oct;14(8):631-40. doi: 10.1016/j.cardfail.2008.08.010. Epub 2008 Sep 14.

    PubMed 18926433

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing rolofylline in people with Heart Failure, Congestive, run by NovaCardia, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA).

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 3 inclusion and 25 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 9 Oct 2009. Status can change between updates, so confirm with the study contact before making plans.

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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

effect on heart failure signs and symptoms (time frame: 3 days). The study lists 2 primary outcomes in all. 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 NCT00328692, which also lists 11 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 9 Oct 2009.

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