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Kidney, Polycystic, Autosomal DominantPhase 2NCT00890279

Efficacy and Safety Study of Second-Line Treatment for Hypertension With Autosomal Dominant Polycystic Kidney Disease(ADPKD)

A Phase 2 study testing Cilnidipine and Imidapril in people with Kidney, Polycystic, Autosomal Dominant, run by Ministry of Health, Labour and Welfare, Japan at 9 sites in Japan.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

This phase II study examines the safety and efficacy of combination therapy for hypertension in patients with autosomal dominant polycystic kidney disease (ADPKD). This study examines the safety and efficacy of combination therapy by imidapril (ACEI) or cilnidipine (CCB) in ADPKD patients whose blood pressure is not… Read more about this study

Who is it for?
Ages 20 to 60 years
Conditions the study is for
Kidney, Polycystic, Autosomal Dominant
What is being tested?
Cilnidipine and Imidapril
Could I receive a placebo?
No, everyone receives an active treatment
How many people
160 participants
Where
9 sitesJapan
Study dates
Jul 2009to Nov 2012
Phase
Phase 2
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 20 to 60 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • ADPKD patients
  • Blood pressure measured at out-patient setting is above 120/80 mmHg
  • Age between 20 and 60 years old
  • eGFR more than 30 ml/min/1.73m2
  • Patients give informed consent

Who cannot join

  • Patients with severe cardiovascular and hepatic disorders
  • Patients with complications of central nervous vascular disorders
  • Women who are breast feeding and females of childbearing potential who are not using acceptable contraceptive methods
  • Patients currently engaging in other experimental protocol
  • Patients with intracranial aneurysma
  • Patients who must use diuretics
  • Allergic patients to Candesartan or Cilnidipine
  • Patients whose hypertension is not controlled by medication of this protocol

Trial locations and contacts

9 sites in 1 country.

Satoru Muto, MD, PhD contact

+81339642497

muto@med.teikyo-u.ac.jp

9 sites in 1 country

Japan9 sites, 8 recruiting
  • Department of Medicine II, Nippon Medical School

    Bunkyo-ku, Tokyo, 1138602

    Yasuhiko Iino, MD, +81338222131, iinoyasuhiko@nms.ac.jp

    Yasuhiko Iino, MD

    Not yet recruiting
  • Department of Urology, National Hospital Organaization Chiba-East Hospital

    Chiba, Chiba, 2608712

    Koichi Kamura, MD, +81432615171 ext. 7607, kamura@cehpnet.com

    Koichi Kamura, MD

    Not yet recruiting
  • Toranomon Hospital Kajigaya, Kidney center

    Kawasaki, Kanagawa, 2138587

    Yoshihumi Ubara, MD, +81448775111 ext. 6064, ubara@toranomon.gr.jp

    Yoshihumi Ubara, MD

    Not yet recruiting
  • Toranomon Hospital, Kidney center

    Minato-ku, Tokyo, 1058470

    Kenmei Takaichi, MD, +81335881111 ext. 7065, takaichi@toranomon.gr.jp

    Kenmei Takaichi, MD

    Not yet recruiting
  • Division of Kidney and Hypertension, Department of Internal Medicine, Jikei University School of Medicine

    Minato-ku, Tokyo, 1058471

    Active, not recruiting
  • Department of Urology, Kyorin University School of Medicine

    Mitaka, Tokyo, 1818611

    Eiji HIgashihara, MD, 81422475511, ehigashi@kyorin-u.ac.jp

    Kikuo Nutahara, MD, 81422475511, kinuta@kyorin-u.ac.jp

    Not yet recruiting
  • Division of Clinical Nephrology and Rheumatology, Niigata University Graduate School of Medical and Dental Sciences

    Niigata, Niigata, 9518510

    Ichiei Narita, MD, +813252272193, naritai@med.niigata-u.ac.jp

    Ichiei Narita, MD

    Not yet recruiting
  • Department of Medicine II, Hokkaido Univserity School of Medicine

    Sapporo, Hokkaido, 0608638

    Toshio Mochizuki, MD, +81117065915, mtoshi@med.hokudai.ac.jp

    Toshio Mochizuki, MD

    Recruiting
  • Department of Urology, Teikyo University School of Medicine

    tabashi City, Tokyo, 1738605

    Shigeo Horie, MD, +81339642497, shorie@med.teikyo-u.ac.jp

    Satoru Muto, MD, +81339642497, muto@med.teikyo-u.ac.jp

    Recruiting

Other trials in Japan

About this study

Official title: Phase II Study for the Second-Line Treatment of Hypertension in Patients With Autosomal Dominant Polycystic Kidney Disease; ACEI vs. CCB

This phase II study examines the safety and efficacy of combination therapy for hypertension in patients with autosomal dominant polycystic kidney disease (ADPKD). This study examines the safety and efficacy of combination therapy by imidapril (ACEI) or cilnidipine (CCB) in ADPKD patients whose blood pressure is not controlled under 120/80 mmHg by candesartan (ARB) alone.

Read the detailed description

Maximum dosage of candesartan is 8 mg/day. Dosage of imidapril is in the range of 2.5-10 mg/day. Dosage of cilnidipine is in the range of 5-20mg/day.

Being tested
Cilnidipine, Imidapril
Keywords
Autosomal Dominant Polycystic Kidney Disease, Hypertension, Angiotensin-II Receptor Blocker, Calcium Channel Blocker, Angiotensin converting enzyme inhibitor, Kidney Volume, eGFR
Medical subject headings
Polycystic Kidney, Autosomal Dominant, Hypertension

What participants receive

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

  • CilnidipineDrug

    Also called ATELEC

    Cilnidipine up to 20 mg

  • ImidaprilDrug

    Also called TANATRIL

    Imidapril up to 10 mg per day

Study groups in NCT00890279
Study groupRoleWhat they receive
CilnidipineExperimentalThe patients whose blood pressure is not controlled under 120/80 with ARB alone are randomized into group A or B. In group A, blood pressure is controlled by Candesartan plus Cilnidipine.
Receives: Drug: Cilnidipine
ImidaprilActive comparatorThe patients whose blood pressure is not controlled under 120/80 with ARB alone are randomized into group A or B. In group B, blood pressure is controlled by Candesartan plus Imidapril.
Receives: Drug: Imidapril

What is being measured

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

  1. eGFR

    Measured: every 6 months

Secondary outcomes (3)
  1. Kidney Volume measured by MRI

    Measured: every 3 months to every 2 years

  2. Serum creatinine level

    Measured: every 3 months to every 2 years

  3. Induction of hemodialysis, cardiovascular events and central nervous vascular events

    Measured: every 3 months to every 2 years

Timeline

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

  1. First posted29 Apr 2009 (estimated)
  2. Study startJul 2009
  3. Primary completionJun 2010 (estimated)
  4. Study completionNov 2012 (estimated)

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
160 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00890279
Sponsor's protocol ID
ADPKDhypertension
Status last verified
Dec 2009
First submitted
28 Apr 2009
Last updated
2 Dec 2009
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Cilnidipine and Imidapril in people with Kidney, Polycystic, Autosomal Dominant, run by Ministry of Health, Labour and Welfare, Japan at 9 sites in Japan.

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 5 inclusion and 8 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: status not confirmed, as of the sponsor's last update on 2 Dec 2009. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 9 sites in Japan. 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. 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 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?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Shigeo Horie, MD (+81339642497, shorie@med.teikyo-u.ac.jp), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

eGFR (time frame: every 6 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 2 Dec 2009.

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