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Autosomal Dominant Polycystic Kidney DiseasePhase 2NCT00841568

A Long-term Administration Study of OPC-41061 in Patients With Autosomal Dominant Polycystic Kidney Disease (ADPKD) [Extension of Study 156-04-001]

A Phase 2 study testing OPC-41061 in people with Autosomal Dominant Polycystic Kidney Disease, run by Otsuka Pharmaceutical Co., Ltd. at 1 site in Japan.

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

Investigation into the long-term safety and efficacy of OPC-41061 in repeated oral administrations at doses of 15 mg twice daily in patients with ADPKD who completed the preceding dose-finding study (156-04-001). Read more about this study

Who is it for?
Any age
What is being tested?
OPC-41061
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
17 participants
Where
1 siteJapan
Study dates
Apr 2006to Nov 2010
Phase
Phase 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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Patients who completed 5-day repeated administrations and the follow-up observation in the preceding study (156-04-001)
  • Patients in whom the safety of repeated administration was confirmed based on the investigator's reports from the preceding study (156-04-001)

Who cannot join

  • Patients with serum creatinine concentration of 2.5 mg/dL or higher at the screening examination
  • Patients with any of the following complications
  • Uncontrolled hypertension
  • Serious cardiovascular disease (eg. heart failure) or hepatic disease (eg. cirrhosis)"
  • Patients with any of the following complications or history thereof
  • Clinically significant drug allergies (anaphylaxis) or hypersensitivity (especially, hypersensitivity to benzazepine derivatives or suspected hypersensitivity thereto)
Show all 13Show fewer
  • Inability to personally give consent due to a mental disease "
  • Patients with SBP (in sitting position) <90 mm Hg (at screening examination)
  • Patients with history of massive bleeding or bleeding tendency
  • Patients with a history of drug or alcohol abuse within 6 months prior to the screening examination
  • Pregnant women, lactating women, or women who may become or plan to become pregnant
  • Patients who received any investigational drug other than OPC-41061 within 30 days prior to commencement of administration of OPC-41061
  • Any patient who, in the opinion of the principle investigator or attending investigators, should not participate in the study

Trial locations and contacts

1 site in 1 country.

Japan1 site
  • Study site

    Kanto Region

Other trials in Japan

About this study

Investigation into the long-term safety and efficacy of OPC-41061 in repeated oral administrations at doses of 15 mg twice daily in patients with ADPKD who completed the preceding dose-finding study (156-04-001).

Read the detailed description

Investigation into the long-term safety and efficacy of OPC-41061 in repeated oral administrations at doses of 15 mg twice daily in patients with ADPKD who completed the preceding dose-finding study (156-04-001).

Being tested
OPC-41061
Keywords
ADPKD, Tolvaptan
Medical subject headings
Polycystic Kidney, Autosomal Dominant

What participants receive

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

  • OPC-41061Drug

    orally administered at 15 mg twice daily (morning and evening) for a maximum of 3 years.

Study groups in NCT00841568
Study groupRoleWhat they receive
1ExperimentalNot described
Receives: Drug: OPC-41061

What is being measured

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

  1. Total Kidney Volume

    Individual subject data on the volumes of the total kidney volume (sum of the volumes of the left and right kidneys) measured by magnetic resonance imaging or computed tomography during trial period.

    Number of participants analyzed at each time point represents number of participants with data at the specified time point. Patients who were withdrawn from trial or have no appropriate data (e.g., interruption of medication, protocol deviation, etc.) are excluded.

    Measured: Baseline, week 24, 52, 104, and 156

  2. Renal Function Test (eGFR)

    Individual subject data on eGFR (estimated glomerular filtration rate calculated by Japanese eGFR equation) during trial period.

    Number of participants analyzed at each time point represents number of participants with data at the specified time point. Patients who were withdrawn from trial or have no appropriate data (e.g., interruption of medication, protocol deviation, etc.) are excluded.

    Measured: Baseline, Week 24, 48, 104, and 156

Timeline

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

  1. First posted11 Feb 2009 (estimated)
  2. Study startApr 2006
  3. Primary completionNov 2010
  4. Study completionNov 2010

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
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
17 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00841568
Sponsor's protocol ID
156-05-002
Other IDs
JapicCTI-090690
Status last verified
Aug 2018
First submitted
9 Feb 2009
Last updated
11 Sep 2018
Data monitoring committee
No

Publications

  • St Pierre K, Cashmore BA, Bolignano D, Zoccali C, Ruospo M, Craig JC, Strippoli GF, Mallett AJ, Green SC, Tunnicliffe DJ. Interventions for preventing the progression of autosomal dominant polycystic kidney disease. Cochrane Database Syst Rev. 2024 Oct 2;10(10):CD010294. doi: 10.1002/14651858.CD010294.pub3.

    PubMed 39356039
  • Higashihara E, Torres VE, Chapman AB, Grantham JJ, Bae K, Watnick TJ, Horie S, Nutahara K, Ouyang J, Krasa HB, Czerwiec FS; TEMPOFormula and 156-05-002 Study Investigators. Tolvaptan in autosomal dominant polycystic kidney disease: three years' experience. Clin J Am Soc Nephrol. 2011 Oct;6(10):2499-507. doi: 10.2215/CJN.03530411. Epub 2011 Sep 8.

    PubMed 21903984

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing OPC-41061 in people with Autosomal Dominant Polycystic Kidney Disease, run by Otsuka Pharmaceutical Co., Ltd. at 1 site 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 2 inclusion and 13 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 Sep 2018. 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 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?

Yes. Results are posted in the registry (first posted 27 Jul 2018). 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?

Total Kidney Volume (time frame: Baseline, week 24, 52, 104, and 156). 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 NCT00841568, which also lists 2 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 11 Sep 2018.

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