Autosomal Dominant Polycystic Kidney Disease (ADPKD)Phase 3TEMPO 4/4NCT01214421
Tolvaptan Extension Study in Participants With ADPKD
A Phase 3 study testing Tolvaptan in people with Autosomal Dominant Polycystic Kidney Disease (ADPKD), run by Otsuka Pharmaceutical Development & Commercialization, Inc. at 97 sites in 13 countries.
Trial summary
To demonstrate whether tolvaptan modifies ADPKD progression as measured by changes from Baseline (from Study 156-04-251) in total kidney volume (TKV) and renal function. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Autosomal Dominant Polycystic Kidney Disease (ADPKD)
- What is being tested?
- Tolvaptan
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 1,083 participants
- Where
- 97 sitesin 13 countries
- Study dates
- 26 May 2010to 29 Feb 2016
- 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
- Participants who had successfully completed a Phase 1, 2, or 3 tolvaptan ADPKD or renal impairment study, with a confirmed diagnosis of ADPKD from prior studies [either 156-04-251 (NCT00428948) or 156-04-250 (NCT00413777), 156-06-260, 156-09-284 (NCT01336972), 156-09-285 (NCT01210560), and 156-09-290 (NCT01451827)].
Who cannot join
- Participants unable to provide written informed consent.
- Participants (men or women) would not adhere to the reproductive precautions as outlined in the Informed Consent Form.
- Participants (women only) with a positive urine pregnancy test.
- Participants who were pregnant or breast-feeding.
- Participants unable to take oral medications.
- Participants who had allergic reactions to tolvaptan or chemically related structures such as benzazepines (benzazepril, conivaptan, fenoldopam mesylate, or mirtazapine).
Show all 17Show fewer
- Participants with disorders in thirst recognition or an inability to access fluids.
- Participants with critical electrolyte imbalances, as determined by the investigator
- Participants with or at risk of significant hypovolemia, as determined by investigator.
- Participants with significant anemia, as determined by investigator.
- Participants with a history of substance abuse (within the last 3 years).
- Participants who were taking other experimental (that is, non-marketed) therapies or were participating in another clinical drug or device study; participating in the off-drug follow-up period of another ADPKD trial with tolvaptan was permitted.
- Participants unable to complete magnetic resonance imaging (MRI) assessments (for example, participants with ferro-magnetic prostheses, aneurysm clips, severe claustrophobia).
- Participants who had taken a vasopressin antagonist (outside of previous participation in a tolvaptan study).
- Participants unable to comply with anti-hypertensive or other important medical therapy.
- Participants with advanced diabetes.
- Participants who were taking medications or had an illness that could confound endpoint assessments (including taking approved therapies for the purpose of affecting polycystic kidney disease [PKD] cysts).
Trial locations and contacts
97 sites in 13 countries.
97 sites in 13 countries
United States38 sites
Otsuka Investigational Site
Anderson, South Carolina, 29621
Otsuka Investigational Site
Arlington, Texas, 76015
Otsuka Investigational Site
Atlanta, Georgia, 30322
Otsuka Investigational Site
Augusta, Georgia, 30909
Otsuka Investigational Site
Aurora, Colorado, 80045
Otsuka Investigational Site
Baltimore, Maryland, 21205
Otsuka Investigational Site
Baton Rouge, Louisiana, 70808
Otsuka Investigational Site
Bethlehem, Pennsylvania, 18017
Otsuka Investigational Site
Boston, Massachusetts, 02111
Otsuka Investigational Site
Buffalo, New York, 14215
Otsuka Investigational Site
Chapel Hill, North Carolina, 27599
Otsuka Investigational Site
Charlottesville, Virginia, 22908
Otsuka Investigational Site
Chicago, Illinois, 60611
Otsuka Investigational Site
Cincinnati, Ohio, 45246
Otsuka Investigational Site
Cleveland, Ohio, 44106
Otsuka Investigational Site
Detroit, Michigan, 48236
Otsuka Investigational Site
Hawthorne, New York, 10532
Otsuka Investigational Site
Jacksonville, Florida, 32216
Otsuka Investigational Site
Kansas City, Kansas, 66160
Otsuka Investigational Site
Los Angeles, California, 90025
Otsuka Investigational Site
McAllen, Texas, 78503
Otsuka Investigational Site
Minneapolis, Minnesota, 55404
Otsuka Investigational Site
Mobile, Alabama, 36617
Otsuka Investigational Site
Nashville, Tennessee, 37205
Otsuka Investigational Site
Nashville, Tennessee, 37232
Otsuka Investigational Site
New Haven, Connecticut, 06510
Otsuka Investigational Site
New York, New York, 10021
Otsuka Investigational Site
New York, New York, 10032
Otsuka Investigational Site
Palo Alto, California, 94304
Otsuka Investigational Site
Peoria, Arizona, 85381
Otsuka Investigational Site
Philadelphia, Pennsylvania, 19104
Otsuka Investigational Site
Port Charlotte, Florida, 33952
Otsuka Investigational Site
Portland, Oregon, 97210
Otsuka Investigational Site
Rochester, Minnesota, 55905
Otsuka Investigational Site
Rockville, Maryland, 20850
Otsuka Investigational Site
San Diego, California, 92108
Otsuka Investigational Site
Tempe, Arizona, 85284
Otsuka Investigational Site
Voorhees Township, New Jersey, 08043
United Kingdom10 sites
Otsuka Investigational Site
Belfast, BT9 7AB
Otsuka Investigational Site
Birmingham, B15 2TH
Otsuka Investigational Site
Brighton, BN2 5BE
Otsuka Investigational Site
Coventry, CV2 2DX
Otsuka Investigational Site
Edinburgh, EH16 4SA
Otsuka Investigational Site
Inverness, IV2 3UJ
Otsuka Investigational Site
London, NW3 2QG
Otsuka Investigational Site
London, SE5 9RS
Otsuka Investigational Site
London, SW17 0QT
Otsuka Investigational Site
Swansea, SA6 6NL
France7 sites
Otsuka Investigational Site
Bordeaux, 33076
Otsuka Investigational Site
Caen, 14033
Otsuka Investigational Site
Lyon, 69437
Otsuka Investigational Site
Paris, 75018
Otsuka Investigational Site
Reims, 51092
Otsuka Investigational Site
Saint-Etienne, 42055
Otsuka Investigational Site
Toulouse, 31059
Poland7 sites
Otsuka Investigational Site
Ciechanów, 06-400
Otsuka Investigational Site
Krakow, 31-501
Otsuka Investigational Site
Lodz, 90-153
Otsuka Investigational Site
Lublin, 20-954
Otsuka Investigational Site
Szczecin, 70-111
Otsuka Investigational Site
Warsaw, 04-749
Otsuka Investigational Site
Wroclaw, 50-556
Australia6 sites
Otsuka Investigational Site
Adelaide, South Australia, 5000
Otsuka Investigational Site
Parkville, Victoria, 3050
Otsuka Investigational Site
Perth, Western Australia, 6000
Otsuka Investigational Site
St Leonards, New South Wales, 2065
Otsuka Investigational Site
Westmead, New South Wales, 2145
Otsuka Investigational Site
Woolloongabba, Queensland, 4102
Argentina5 sites
Otsuka Investigational Site
Buenos Aires, C1425APQ
Otsuka Investigational Site
C.a.b.a., Buenos Aires, C1429BWN
Otsuka Investigational Site
Córdoba, 5000
Otsuka Investigational Site
Córdoba, X5016KEH
Otsuka Investigational Site
Pilar, Buenos Aires, B1629ODT
Germany5 sites
Otsuka Investigational Site
Dresden, 01307
Otsuka Investigational Site
Düsseldorf, 40210
Otsuka Investigational Site
Essen, 45147
Otsuka Investigational Site
Heidelberg, 69120
Otsuka Investigational Site
Nuremberg, 90471
Italy5 sites
Otsuka Investigational Site
Bergamo, 24127
Otsuka Investigational Site
Milan, 20132
Otsuka Investigational Site
Modena, 41100
Otsuka Investigational Site
Naples, 80131
Otsuka Investigational Site
Pavia, 27100
Belgium3 sites
Otsuka Investigational Site
Brussels, 1090
Otsuka Investigational Site
Brussels, 1200
Otsuka Investigational Site
Ghent, 9000
Canada3 sites
Otsuka Investigational Site
Halifax, Nova Scotia, B3H 1V8
Otsuka Investigational Site
Montreal, Quebec, H3A1A1
Otsuka Investigational Site
Montreal, Quebec, H4J1C5
Romania3 sites
Otsuka Investigational Site
Bucharest, 010731
Otsuka Investigational Site
Bucharest, 022328
Otsuka Investigational Site
Iași, 700504
Russia3 sites
Otsuka Investigational Site
Kemerovo, 650029
Otsuka Investigational Site
Saint Petersburg, 191104
Otsuka Investigational Site
Tomsk, 634063
Netherlands2 sites
Otsuka Investigational Site
Amsterdam, 1081 HV
Otsuka Investigational Site
Groningen, 9713 GZ
About this study
Official title: Multi-center, Open-label, Extension Study to Evaluate the Long-term Efficacy and Safety of Oral Tolvaptan Tablet Regimens in Subjects With Autosomal Dominant Polycystic Kidney Disease (ADPKD)
To demonstrate whether tolvaptan modifies ADPKD progression as measured by changes from Baseline (from Study 156-04-251) in total kidney volume (TKV) and renal function.
- Being tested
- Tolvaptan
- Keywords
- Kidney Disease, ADPKD, Autosomal Dominant Polycystic Kidney Disease, Adult Polycystic Kidney Disease
- Medical subject headings
- Polycystic Kidney, Autosomal Dominant, Kidney Diseases
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
TolvaptanDrug
Also called OPC-41061, Jinarc
Tablets of 15 or 30 mg
| Study group | Role | What they receive |
|---|---|---|
| Tolvaptan | Experimental | Participants received a daily split-dose of tolvaptan titrated to the maximally tolerated dose, starting daily tolvaptan dose of 45 milligrams (mg) in the morning [AM]/15 mg in the evening [PM] titrated to 60 mg [AM]/30 mg [PM], then 90 mg [AM]/30 mg [PM] based on tolerability were given orally twice daily until the last participant originating from prior studies (either 156-04-251 or 156-04-250, 156-06-260, 156-09-284, 156-09-285, and 156-09-290) who was eligible for efficacy analysis completed the Month 24. Receives: Drug: Tolvaptan |
What is being measured
The primary outcome is the main question the study is designed to answer.
Percent Change From the Baseline in Total Kidney Volume (TKV) for Study 156-04-251 Participants Enrolled in This Study (156-08-271)
Total kidney volume is a measure of disease progression in the ADPKD participants. Kidney volume was assessed in T1-weighted magnetic resonance images collected at each study site and sent to a central reviewing facility. At the central reviewing facility, radiologists used proprietary software to measure the volume of both kidneys in participants continuing from previous study (156-04-251) at Month 24 of this study (156-08-271) comparing change in TKV for the early-treated (those previously treated with tolvaptan) to delayed-treated (those previously treated with placebo). The percent change in the volume of both kidneys combined was analysed using mixed-effect model repeated measures (MMRM) analysis and reported. This outcome measure was analyzed only in the participants enrolled from the previous study - 156-04-251, as pre-specified in the protocol.
Measured: Study Baseline (Prior to Day 1 in Study 156-04-251) to Month 24 in this study (Study 156-08-271)
Secondary outcomes (5)
Change From the Baseline in Estimated Glomerular Filtration Rate (eGFR) as Assessed by Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) for Study 156-04-251 Participants Enrolled in This Study (156-08-271)
Estimated Glomerular Filtration Rate (eGFR) according to CKD-EPI is calculated using the CKD-EPI equation, expressed as a single equation, is GFR = 141 × min (serum creatinine [Scr]/κ, 1)α × max(Scr/κ, 1)^-1.209 × 0.993 Age × 1.018 (if female) × 1.159 (if black), where Scr is serum creatinine, κ is 0.7 for females and 0.9 for males, α is -0.329 for females and -0.411 for males, min indicates the minimum of Scr/ĸ or 1, and max indicates the maximum of Scr/κ or 1 in participants continuing from previous study (156-04-251) at Month 24 of this study (156-08-271) comparing change in eGFR for the early-treated (those previously treated with tolvaptan) to delayed-treated (those previously treated with placebo). MMRM was used for the analysis. This outcome measure was analyzed only in the participants enrolled from the previous - 156-04-251, as pre-specified in the protocol.
Measured: Study Baseline (Prior to Day 1 in Study 156-04-251) to Month 24 in this study (Study 156-08-271)
Annualized Slope of Total Kidney Volume (TKV) for Study 156-04-251 Participants Enrolled in Study 156-08-271
Annualized slope of TKV is a measure of renal function and disease progression in ADPKD participants. The annualized slope is calculated as percentage of growth in TKV (measured in mL by MRI) divided by each participant's years of participation for all participants was calculated using MMRM analysis in participants continuing from previous study (156-04-251) at Month 24 of this study (156-08-271) comparing annualized slope of TKV for the early-treated (those previously treated with tolvaptan) to delayed-treated (those previously treated with placebo). This outcome measure was analyzed only in the participants enrolled from the previous study - 156-04-251, as pre-specified in the protocol.
Measured: Study Baseline (Prior to Day 1 in Study 156-08-271) to Month 24 in this study (Study 156-08-271)
Annualized Slope of eGFR (CKD-EPI) for Study 156-04-251 Participants Enrolled in Study 156-08-271
Annualized slope of eGFR (CKD-EPI) is a measure of renal function and disease progression in ADPKD participants. The annualized slope of eGFR (CKD-EPI) (divided by each participant's years of participation) for all participants was calculated using MMRM analysis in participants continuing from previous study (156-04-251) at Month 24 of this study (156-08-271) comparing change in TKV for the early-treated (those previously treated with tolvaptan) to delayed-treated (those previously treated with placebo). eGFR was calculated using the Chronic Kidney Disease-Epidemiology (CKD-EPI) formula. This outcome measure was analyzed only in the participants enrolled from the previous study - 156-04-251, as pre-specified in the protocol.
Measured: Study Baseline (Prior to Day 1 in Study 156-08-271) to Month 24 (Study 156-08-271)
Annualized TKV Slope for Study 156-04-251 Placebo Participants Enrolled in Study 156-08-271
Annualized slope of TKV is a measure of renal function and disease progression in ADPKD participants. The annualized slope is calculated as percentage of growth in TKV (measured in mL by MRI) divided by each participant's years of participation, using MMRM analysis to compare annualized slope of TKV for the participants who received placebo in previous study (156-04-251) to annualized slope of TKV for the same participants who received tolvaptan in this study (156-08-271). This outcome measure was analyzed only in the participants enrolled from the previous study - 156-04-251 and who received placebo in the previous study, as pre-specified in the protocol.
Measured: Tolvaptan, Delayed Treated: Baseline to Month 24 in Study 156-08-271; Placebo: Baseline to Month 36 in Study 156-04-251
Annualized Slope of Renal Function (eGFRCKD-EPI) for Study 156-04-251 Placebo Participants Enrolled in Study 156-08-271
Annualized slope of eGFR (CKD-EPI) is a measure of renal function and disease progression in ADPKD participants. The annualized slope of eGFR (calculated using CKD-EPI formula) divided by each participant's years of participation, using MMRM analysis to compare annualized slope of eGFR (CKD-EPI) for the participants who received placebo in previous study (156-04-251) to the annualized slope of eGFR (CKD-EPI) for the same participants who received tolvaptan in this study (156-08-271). This outcome measure was analyzed only in the participants enrolled from the previous study - 156-04-251 who received placebo in previous study and received tolvaptan in this study, as pre-specified in the protocol.
Measured: Tolvaptan, Delayed Treated: Baseline to Month 24 in Study 156-08-271; Placebo: Baseline to Month 36 in Study 156-04-251
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Oct 2010 (estimated)
- Study start26 May 2010
- Primary completion29 Feb 2016
- Study completion29 Feb 2016
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 (6)Papers the sponsor has linked to this study.
- Other trials for Autosomal Dominant Polycystic Kidney Disease (ADPKD)Studies of the same condition, open and under way.
- More trials run by Otsuka Pharmaceutical Development & Commercialization, Inc.The 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 3
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 1,083 participants (actual)
Sponsor and investigators
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Study Director, Study director, Otsuka Pharmaceutical Development & Commercialization, Inc.
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01214421
- Sponsor's protocol ID
- 156-08-271
- Other IDs
- 2010-018401-10
- Acronym
- TEMPO 4/4
- Status last verified
- Sep 2021
- First submitted
- 26 Sep 2010
- Last updated
- 25 Oct 2021
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: Anonymized Individual participant data (IPD) that underlie the results of this study will be shared with researchers to achieve aims pre-specified in a methodologically sound research proposal. Small studies with less than 25 participants are excluded from data sharing.
Publications
Lioudis M, Zhou X, Davenport E, Nunna S, Krasa HB, Oberdhan D, Fernandes AW. Effects of tolvaptan discontinuation in patients with autosomal dominant polycystic kidney disease: a post hoc pooled analysis. BMC Nephrol. 2023 Jun 22;24(1):182. doi: 10.1186/s12882-023-03247-6.
PubMed 37349694Chebib FT, Zhou X, Garbinsky D, Davenport E, Nunna S, Oberdhan D, Fernandes A. Tolvaptan and Kidney Function Decline in Older Individuals With Autosomal Dominant Polycystic Kidney Disease: A Pooled Analysis of Randomized Clinical Trials and Observational Studies. Kidney Med. 2023 Apr 14;5(6):100639. doi: 10.1016/j.xkme.2023.100639. eCollection 2023 Jun.
PubMed 37250503Alpers DH, Lewis JH, Hunt CM, Freston JW, Torres VE, Li H, Wang W, Hoke ME, Roth SE, Westcott-Baker L, Estilo A. Clinical Pattern of Tolvaptan-Associated Liver Injury in Trial Participants With Autosomal Dominant Polycystic Kidney Disease (ADPKD): An Analysis of Pivotal Clinical Trials. Am J Kidney Dis. 2023 Mar;81(3):281-293.e1. doi: 10.1053/j.ajkd.2022.08.012. Epub 2022 Sep 30.
PubMed 36191725Bennett H, McEwan P, Hamilton K, O'Reilly K. Modelling the long-term benefits of tolvaptan therapy on renal function decline in autosomal dominant polycystic kidney disease: an exploratory analysis using the ADPKD outcomes model. BMC Nephrol. 2019 Apr 23;20(1):136. doi: 10.1186/s12882-019-1290-5.
PubMed 31014270Thimmappa ND, Blumenfeld JD, Cerilles MA, Dunning A, Donahue SL, Bobb WO, Zhang HL, Prince MR. Cisterna chyli in autosomal dominant polycystic kidney disease. J Magn Reson Imaging. 2015 Jan;41(1):142-8. doi: 10.1002/jmri.24527. Epub 2014 Jan 27.
PubMed 24470398Blumenfeld JD, Tepler J, Mauer A, Coller B, Bichet DG, Smith B. Tolvaptan inhibition of desmopressin effects on coagulation factors in a patient with decreased von Willebrand factor and polycystic kidney disease. Blood. 2011 Jul 14;118(2):474-6. doi: 10.1182/blood-2011-04-347328. No abstract available.
PubMed 21757630
Study at a glance
From the registry record, last updated by the sponsor on 25 Oct 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Multi-center, Open-label, Extension Study to Evaluate the Long-term Efficacy and Safety of Oral Tolvaptan Tablet Regimens in Subjects With Autosomal Dominant Polycystic Kidney Disease (ADPKD)
- ClinicalTrials.gov ID
- NCT01214421
- Acronym / sponsor ID
- TEMPO 4/4 / 156-08-271
- Keywords
- Kidney Disease, ADPKD, Autosomal Dominant Polycystic Kidney Disease, Adult Polycystic Kidney Disease
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 1,083 participants (actual)
- Lead sponsor
- Otsuka Pharmaceutical Development & Commercialization, Inc.Industry (pharma, biotech, devices)
- Study start
- 26 May 2010 (actual)
- Primary completion
- 29 Feb 2016 (actual)
- Study completion
- 29 Feb 2016 (actual)
- First posted
- 5 Oct 2010 (estimated)
- Results
- Posted 25 Oct 2021
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
To demonstrate whether tolvaptan modifies ADPKD progression as measured by changes from Baseline (from Study 156-04-251) in total kidney volume (TKV) and renal function.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Tolvaptan | Experimental | Drug: TolvaptanParticipants received a daily split-dose of tolvaptan titrated to the maximally tolerated dose, starting daily tolvaptan dose of 45 milligrams (mg) in the morning [AM]/15 mg in the evening [PM] titrated to 60 mg [AM]/30 mg [PM], then 90 mg [AM]/30 mg [PM] based on tolerability were given orally twice daily until the last participant originating from prior studies (either 156-04-251 or 156-04-250, 156-06-260, 156-09-284, 156-09-285, and 156-09-290) who was eligible for efficacy analysis completed the Month 24. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- Participants who had successfully completed a Phase 1, 2, or 3 tolvaptan ADPKD or renal impairment study, with a confirmed diagnosis of ADPKD from prior studies [either 156-04-251 (NCT00428948) or 156-04-250 (NCT00413777), 156-06-260, 156-09-284 (NCT01336972), 156-09-285 (NCT01210560), and 156-09-290 (NCT01451827)].
Key exclusion criteria (17 listed)
- Participants unable to provide written informed consent.
- Participants (men or women) would not adhere to the reproductive precautions as outlined in the Informed Consent Form.
- Participants (women only) with a positive urine pregnancy test.
- Participants who were pregnant or breast-feeding.
- Participants unable to take oral medications.
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 |
|---|---|---|
| TolvaptanAlso: OPC-41061, JinarcTablets of 15 or 30 mg | Drug | Tolvaptan |
Primary outcome
Percent Change From the Baseline in Total Kidney Volume (TKV) for Study 156-04-251 Participants Enrolled in This Study (156-08-271)
Time frame: Study Baseline (Prior to Day 1 in Study 156-04-251) to Month 24 in this study (Study 156-08-271)
Total kidney volume is a measure of disease progression in the ADPKD participants. Kidney volume was assessed in T1-weighted magnetic resonance images collected at each study site and sent to a central reviewing facility. At the central reviewing facility, radiologists used proprietary software to measure the volume of both kidneys in participants continuing from previous study (156-04-251) at Month 24 of this study (156-08-271) comparing change in TKV for the early-treated (those previously treated with tolvaptan) to delayed-treated (those previously treated with placebo). The percent change in the volume of both kidneys combined was analysed using mixed-effect model repeated measures (MMRM) analysis and reported. This outcome measure was analyzed only in the participants enrolled from the previous study - 156-04-251, as pre-specified in the protocol.
5 secondary outcomes
Change From the Baseline in Estimated Glomerular Filtration Rate (eGFR) as Assessed by Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) for Study 156-04-251 Participants Enrolled in This Study (156-08-271)
Time frame: Study Baseline (Prior to Day 1 in Study 156-04-251) to Month 24 in this study (Study 156-08-271)
Annualized Slope of Total Kidney Volume (TKV) for Study 156-04-251 Participants Enrolled in Study 156-08-271
Time frame: Study Baseline (Prior to Day 1 in Study 156-08-271) to Month 24 in this study (Study 156-08-271)
Annualized Slope of eGFR (CKD-EPI) for Study 156-04-251 Participants Enrolled in Study 156-08-271
Time frame: Study Baseline (Prior to Day 1 in Study 156-08-271) to Month 24 (Study 156-08-271)
Annualized TKV Slope for Study 156-04-251 Placebo Participants Enrolled in Study 156-08-271
Time frame: Tolvaptan, Delayed Treated: Baseline to Month 24 in Study 156-08-271; Placebo: Baseline to Month 36 in Study 156-04-251
Annualized Slope of Renal Function (eGFRCKD-EPI) for Study 156-04-251 Placebo Participants Enrolled in Study 156-08-271
Time frame: Tolvaptan, Delayed Treated: Baseline to Month 24 in Study 156-08-271; Placebo: Baseline to Month 36 in Study 156-04-251
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 25 Oct 2021.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 37349694Lioudis M, Zhou X, Davenport E, Nunna S, Krasa HB, Oberdhan D, Fernandes AW. Effects of tolvaptan discontinuation in patients with autosomal dominant polycystic kidney disease: a post hoc pooled analysis. BMC Nephrol. 2023 Jun 22;24(1):182. doi: 10.1186/s12882-023-03247-6.
- Derived from this study: PubMed 37250503Chebib FT, Zhou X, Garbinsky D, Davenport E, Nunna S, Oberdhan D, Fernandes A. Tolvaptan and Kidney Function Decline in Older Individuals With Autosomal Dominant Polycystic Kidney Disease: A Pooled Analysis of Randomized Clinical Trials and Observational Studies. Kidney Med. 2023 Apr 14;5(6):100639. doi: 10.1016/j.xkme.2023.100639. eCollection 2023 Jun.
- Derived from this study: PubMed 36191725Alpers DH, Lewis JH, Hunt CM, Freston JW, Torres VE, Li H, Wang W, Hoke ME, Roth SE, Westcott-Baker L, Estilo A. Clinical Pattern of Tolvaptan-Associated Liver Injury in Trial Participants With Autosomal Dominant Polycystic Kidney Disease (ADPKD): An Analysis of Pivotal Clinical Trials. Am J Kidney Dis. 2023 Mar;81(3):281-293.e1. doi: 10.1053/j.ajkd.2022.08.012. Epub 2022 Sep 30.
- Derived from this study: PubMed 31014270Bennett H, McEwan P, Hamilton K, O'Reilly K. Modelling the long-term benefits of tolvaptan therapy on renal function decline in autosomal dominant polycystic kidney disease: an exploratory analysis using the ADPKD outcomes model. BMC Nephrol. 2019 Apr 23;20(1):136. doi: 10.1186/s12882-019-1290-5.
- Derived from this study: PubMed 24470398Thimmappa ND, Blumenfeld JD, Cerilles MA, Dunning A, Donahue SL, Bobb WO, Zhang HL, Prince MR. Cisterna chyli in autosomal dominant polycystic kidney disease. J Magn Reson Imaging. 2015 Jan;41(1):142-8. doi: 10.1002/jmri.24527. Epub 2014 Jan 27.
- Derived from this study: PubMed 21757630Blumenfeld JD, Tepler J, Mauer A, Coller B, Bichet DG, Smith B. Tolvaptan inhibition of desmopressin effects on coagulation factors in a patient with decreased von Willebrand factor and polycystic kidney disease. Blood. 2011 Jul 14;118(2):474-6. doi: 10.1182/blood-2011-04-347328. No abstract available.
- Individual participant dataSharing planned: Yes. Anonymized Individual participant data (IPD) that underlie the results of this study will be shared with researchers to achieve aims pre-specified in a methodologically sound research proposal. Small studies with less than 25 participants are excluded from data sharing.
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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.
Study Director study director
Otsuka Pharmaceutical Development & Commercialization, Inc.
97 sites in 13 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Tolvaptan in people with Autosomal Dominant Polycystic Kidney Disease (ADPKD), run by Otsuka Pharmaceutical Development & Commercialization, Inc. at 97 sites in 13 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 1 inclusion and 17 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 25 Oct 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 97 sites in United States, United Kingdom, France, Poland, Australia and 8 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. 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 25 Oct 2021). 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?
Percent Change From the Baseline in Total Kidney Volume (TKV) for Study 156-04-251 Participants Enrolled in This Study (156-08-271) (time frame: Study Baseline (Prior to Day 1 in Study 156-04-251) to Month 24 in this study (Study 156-08-271)). 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 NCT01214421, which also lists 6 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 25 Oct 2021.