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Trial · NCT05208866

Roll-over Study to Assess Safety of Lixivaptan in Participants With ADPKD Who Completed Study PA-ADPKD-303

NCT05208866, Phase 3, Terminated, Palladio Biosciences; results first posted 2023-04-10

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Roll-over Study to Assess Safety of Lixivaptan in Participants With ADPKD Who Completed Study PA-ADPKD-303. Trials, record NCT05208866. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT05208866

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Roll-over Study to Assess Safety of Lixivaptan in Participants With ADPKD Who Completed Study PA-ADPKD-303
NCT number
NCT05208866
Status
Terminated
Phases
Phase 3
Enrollment
1 participants, actual
Lead sponsor
Palladio Biosciences
Conditions
Polycystic Kidney Disease, Adult
Interventions
Lixivaptan
First posted
2022-01-26
Last updated
2023-05-12
Results first posted
2023-04-10
Limitations and caveats
Efficacy and safety results are limited by the early termination of the trial and the small number of subjects. Early termination was due to a sponsor decision for reasons unrelated to safety.

Source ClinicalTrials.gov

Registered outcomes8

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
Primary
Number of Participants Who Develop Serum ALT Levels >3 × ULN During the Lixivaptan Re-titration or Maintenance Treatment Periods Assessed to be Related to Lixivaptan and Resulted in Discontinuation of Lixivaptan Treatment
120 days (from Screening to the end of the Maintenance Treatment Period)
Number of participants who develop serum alanine aminotransferase (ALT) levels \>3 × the upper limit of normal (ULN) which are assessed by the independent Hepatic Events Review Committee (HERC) to be at least probably related to lixivaptan and resulted in discontinuation of lixivaptan treatment. The independent HERC, after reviewing demographic, medical and medication history, safety data and other relevant data of participants who develop liver abnormalities, will determine the probable causality for liver chemistry test abnormalities of concern and the relatedness to lixivaptan using the Drug-Induced Liver Injury Network probability criteria (Fontana et al., 2009). The normal range of ALT was defined as 0-55 U/L.
Secondary
Number of Participants Who Develop Serum ALT Levels >5 x ULN During the Lixivaptan Re-titration or Maintenance Treatment Periods Assessed to be Related to Lixivaptan and Resulted in Discontinuation of Lixivaptan Treatment
120 days (from Screening to the end of the Maintenance Treatment Period)
Number of participants who develop serum ALT levels \>5 × ULN which are assessed by the independent HERC to be at least probably related to lixivaptan and resulted in discontinuation of lixivaptan treatment. The independent HERC, after reviewing demographic, medical and medication history, safety data and other relevant data of participants who develop liver abnormalities, will determine the probable causality for liver chemistry test abnormalities of concern and the relatedness to lixivaptan using the Drug-Induced Liver Injury Network probability criteria (Fontana et al., 2009). The normal range of ALT was defined as 0-55 U/L.
Secondary
Number of Participants Who Develop Serum ALT Values >3 × ULN During the Lixivaptan Re-titration or Maintenance Treatment Periods Assessed to be Related to Lixivaptan and Resulted in Dose Reduction of Lixivaptan Treatment
120 days (from Screening to the end of the Maintenance Treatment Period)
Number of participants who develop serum ALT levels \>3 × ULN that were assessed by the independent HERC to be at least probably related to lixivaptan and resulted in dose reduction of lixivaptan treatment. The independent HERC, after reviewing demographic, medical and medication history, safety data and other relevant data of participants who develop liver abnormalities, will determine the probable causality for liver chemistry test abnormalities of concern and the relatedness to lixivaptan using the Drug-Induced Liver Injury Network probability criteria (Fontana et al., 2009). The normal range of ALT was defined as 0-55 U/L.
SecondaryNumber of Participants With Treatment-emergent Adverse Events (TEAEs)140 days (from Screening to the end of the Follow-up Period)Number of participants with TEAEs during the Lixivaptan Re-titration Period, the Maintenance Treatment Period, or the Follow-up Period.
SecondaryNumber of Participants With Potentially Clinically Important Clinical Laboratory Findings140 days (from Screening to the end of the Follow-up Period)
Number of participants with clinical laboratory findings (non-hepatic clinical chemistry, hematology, and urinalysis) recorded during the Lixivaptan Re-titration Period, the Maintenance Treatment Period, or the Follow-up Period, and considered to be potentially clinically important.
SecondaryNumber of Participants With Potentially Clinically Important Vital Signs Findings140 days (from Screening to the end of the Follow-up Period)
Number of participants with vital signs findings (heart rate, diastolic and systolic blood pressure, and weight) recorded during the Lixivaptan Re-titration Period, the Maintenance Treatment Period, or the Follow-up Period, and considered to be potentially clinically important.
SecondaryNumber of Participants With Potentially Clinically Important 12-lead Electrocardiogram (ECG) Findings140 days (from Screening to the end of the Follow-up Period)
Number of participants with ECG findings recorded during the Lixivaptan Re-titration Period, the Maintenance Treatment Period, or the Follow-up Period, and considered to be potentially clinically important (defined as a QT interval corrected for heart rate according to Fridericia's formula \[QTcF\] ≥ 450 msec).
SecondaryAnnualized Change in Estimated Glomerular Filtration Rate (eGFR) From Baseline to Final Assessment140 days (from Screening to the end of the Follow-up Period)
Baseline eGFR is defined as the mean of the 3 eGFR assessments obtained at Visits 25, 26 and 27 of study PA-ADPKD-303 (if any values are missing, the remaining values will be used to determine the baseline eGFR). The endpoint eGFR is defined as the mean of 3 eGFR assessments obtained during the Follow-up Period (if any values are missing, the remaining values will be used to determine the endpoint eGFR). The change in eGFR from Baseline to Final Assessment will be provided.

Outcomes8

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARY
Number of Participants Who Develop Serum ALT Levels >3 × ULN During the Lixivaptan Re-titration or Maintenance Treatment Periods Assessed to be Related to Lixivaptan and Resulted in Discontinuation of Lixivaptan Treatment
120 days (from Screening to the end of the Maintenance Treatment Period)ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARY
Number of Participants Who Develop Serum ALT Levels >5 x ULN During the Lixivaptan Re-titration or Maintenance Treatment Periods Assessed to be Related to Lixivaptan and Resulted in Discontinuation of Lixivaptan Treatment
120 days (from Screening to the end of the Maintenance Treatment Period)ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARY
Number of Participants Who Develop Serum ALT Values >3 × ULN During the Lixivaptan Re-titration or Maintenance Treatment Periods Assessed to be Related to Lixivaptan and Resulted in Dose Reduction of Lixivaptan Treatment
120 days (from Screening to the end of the Maintenance Treatment Period)ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants With Treatment-emergent Adverse Events (TEAEs)140 days (from Screening to the end of the Follow-up Period)ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants With Potentially Clinically Important Clinical Laboratory Findings140 days (from Screening to the end of the Follow-up Period)ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants With Potentially Clinically Important Vital Signs Findings140 days (from Screening to the end of the Follow-up Period)ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants With Potentially Clinically Important 12-lead Electrocardiogram (ECG) Findings140 days (from Screening to the end of the Follow-up Period)ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYAnnualized Change in Estimated Glomerular Filtration Rate (eGFR) From Baseline to Final Assessment140 days (from Screening to the end of the Follow-up Period)The annualized change in eGRF is provided for the only participant enrolled at the time of early termination of the study.mL/min/1.73m^2MEAN

Results by group12

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Number of Participants Who Develop Serum ALT Levels >3 × ULN During the Lixivaptan Re-titration or Maintenance Treatment Periods Assessed to be Related to Lixivaptan and Resulted in Discontinuation of Lixivaptan Treatment
All Enrolled Participants0Participants
Number of Participants Who Develop Serum ALT Levels >5 x ULN During the Lixivaptan Re-titration or Maintenance Treatment Periods Assessed to be Related to Lixivaptan and Resulted in Discontinuation of Lixivaptan Treatment
All Enrolled Participants0Participants
Number of Participants Who Develop Serum ALT Values >3 × ULN During the Lixivaptan Re-titration or Maintenance Treatment Periods Assessed to be Related to Lixivaptan and Resulted in Dose Reduction of Lixivaptan Treatment
All Enrolled Participants0Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs)All Enrolled ParticipantsLixivaptan Re-titration and Maintenance Treatment Periods1Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs)All Enrolled ParticipantsFollow-up Period0Participants
Number of Participants With Potentially Clinically Important Clinical Laboratory FindingsAll Enrolled ParticipantsLixivaptan Re-titration and Maintenance Treatment Periods0Participants
Number of Participants With Potentially Clinically Important Clinical Laboratory FindingsAll Enrolled ParticipantsFollow-up Period0Participants
Number of Participants With Potentially Clinically Important Vital Signs FindingsAll Enrolled ParticipantsLixivaptan Re-titration and Maintenance Treatment Periods0Participants
Number of Participants With Potentially Clinically Important Vital Signs FindingsAll Enrolled ParticipantsFollow-up Period0Participants
Number of Participants With Potentially Clinically Important 12-lead Electrocardiogram (ECG) FindingsAll Enrolled ParticipantsLixivaptan Re-titration and Maintenance Treatment Periods0Participants

Participant flow9

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Lixivaptan Re-titration PeriodSTARTEDAll Enrolled Participants1
Lixivaptan Re-titration PeriodCOMPLETEDAll Enrolled Participants1
Lixivaptan Re-titration PeriodNOT COMPLETEDAll Enrolled Participants0
Maintenance Treatment PeriodSTARTEDAll Enrolled Participants1
Maintenance Treatment PeriodCOMPLETEDAll Enrolled Participants0
Maintenance Treatment PeriodNOT COMPLETEDAll Enrolled Participants1
Follow-up PeriodSTARTEDAll Enrolled Participants1
Follow-up PeriodCOMPLETEDAll Enrolled Participants1
Follow-up PeriodNOT COMPLETEDAll Enrolled Participants0

Adverse events4

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherDermatitis contactSkin and subcutaneous tissue disordersTitration and Maintenance Periods111
otherDermatitis contactSkin and subcutaneous tissue disordersFollow-up Period010
otherArthropod biteInjury, poisoning and procedural complicationsTitration and Maintenance Periods111
otherArthropod biteInjury, poisoning and procedural complicationsFollow-up Period010

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityTitration and Maintenance Periods01
Total, all-cause mortalityFollow-up Period01
Total, other adverse eventsTitration and Maintenance Periods11
Total, other adverse eventsFollow-up Period01
Total, serious adverse eventsTitration and Maintenance Periods01
Total, serious adverse eventsFollow-up Period01

Papers1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed as
19132805BACKGROUND

Source PubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons2

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource
Titration and Maintenance Periods vs Follow-up Period: deaths from any causeTrial comparisons
Titration and Maintenance Periods vs Follow-up Period: serious adverse eventsTrial comparisons

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT05208866

GET https://conductscience.org/api/trials/v1/NCT05208866/registered