CClinicalTrials.gg
CompletedNCT01323855Updated Oct 2, 2018Results posted

A Study to Assess Pharmacokinetics (PK) of Preladenant in Participants With Chronic Renal Impairment (CRI) (P06512)

A Phase 1 interventional study of Preladenant in Parkinson Disease, sponsored by Merck Sharp & Dohme LLC. Completed. Open to participants aged 18 Years to 75 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-10-02.

Sponsored by Merck Sharp & Dohme LLC · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
46
Allocation
Non-randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This is a two part study to compare the PK of preladenant administered to participants with CRI to the PK of preladenant administered to healthy participants. Part 1 will compare the PK of participants with severe CRI to healthy participants. Part 2 will compare the PK of participants with moderate CRI and participants with mild CRI to healthy participants. The primary hypotheses are that the plasma area under the concentration-time curve from time 0 to infinity after single dosing (AUC0-∞) of preladenant in participants with either severe, moderate or mild CRI is similar to that of matched healthy participants.

02

Conditions studied

03

In context

Parkinson Disease

4,487 studies on the registry are indexed under Parkinson Disease; 1,082 are open to participants now.

This study's enrollment of 46 is above the median of 40 across 3,294 interventional studies indexed under Parkinson Disease.

Browse Parkinson Disease studies →

Lead sponsor

Merck Sharp & Dohme LLC is the lead sponsor of 2,114 studies on the registry; 133 are open to participants now.

Of its 489 completed or terminated interventional studies of FDA-regulated products, 362 (74%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Has a body mass index (BMI) between 19 to 34 kg/m\^2, inclusive
  • Has mild to severe CRI and not on dialysis (Participants with normal renal function are to be matched to subjects with renal impairment)
  • Clinical laboratory tests, electrocardiogram, and vital signs within normal ranges
  • Free of any clinically significant disease that would interfere with the study evaluations (except related to his/her renal disease and comorbid conditions)

Exclusion criteria

Exclusion Criteria:

  • Females who are pregnant, intend to become pregnant (within 3 months of ending the study), or are nursing/breastfeeding
  • Any surgical or medical condition which might significantly alter the absorption, distribution, metabolism or excretion of any drug
  • Had a renal transplant or are on dialysis
  • Has a history of any infectious disease within 4 weeks
  • Is positive for hepatitis B surface antigen, hepatitis C antibodies or human immunodeficiency virus (HIV)
  • Has donated blood or had a blood transfusions in the past 60 days
  • Has demonstrated allergic reactions (eg, food, drug, atopic reactions or asthmatic episodes) which could interfere with their ability to participate in the trial
  • Has a history of malignancy
  • Has evidence of suicidality or is at risk for self-harm or harm to others
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
46 participants (actual)

Study arms

  • Experimental
    Part 1: Severe Renal Impairment

    Participants with severe CRI, defined as creatinine clearance of \<30 mL/min/1.73 m\^2, were treated with a single tablet of 5 mg preladenant, administered orally

    Drug: Preladenant

  • Experimental
    Part 2: Moderate Renal Impairment

    Participants with moderate CRI defined as creatinine clearance of ≥30 and \<50 mL/min/1.73 m\^2, were treated with a single tablet of 5 mg preladenant, administered orally

    Drug: Preladenant

  • Experimental
    Part 2: Mild Renal Impairment

    Participants with mild CRI, defined as creatinine clearance of ≥50 and ≤80 mL/min/1.73m\^2, were treated with a single tablet of 5 mg preladenant, administered orally

    Drug: Preladenant

  • Experimental
    Part 1: Normal Renal Function

    Participants with normal renal function, defined as creatinine clearance of \>80 mL/min/1.73 m\^2, were treated with a single tablet of 5 mg preladenant, administered orally

    Drug: Preladenant

  • Experimental
    Part 2: Normal Renal Function

    Participants with normal renal function, defined as creatinine clearance of \>80 mL/min/1.73 m\^2, were treated with a single tablet of 5 mg preladenant, administered orally

    Drug: Preladenant

Interventions

  • DrugPreladenant

    After an overnight fast, a single 5 mg dose, (1 x 5 mg tablet) was administered orally

    Also known as: SCH 420814

06

What researchers measure

Primary outcomes

  1. Area Under the Concentration-time Curve From Time 0 to Infinity (AUC0-∞) After Single Dosing With Preladenant for Participants With Severe CRI Versus Healthy Matched Controls

    Blood samples were taken at the following timepoints: pre-dose, 0.25, 0.50, 0.75, 1, 2, 4, 6, 12, 16, 24, 30, 36 and 48 hours postdose in order to determine the AUC0-∞ of preladenant

    Time frame: Pre-dose to 48 hours post-dose

  2. AUC0-∞ After Single Dosing With Preladenant for Participants With Moderate CRI Versus Healthy Matched Controls

    Blood samples were taken at the following timepoints: pre-dose, 0.25, 0.50, 0.75, 1, 2, 4, 6, 12, 16, 24, 30, 36 and 48 hours postdose in order to determine the AUC0-∞ of preladenant

    Time frame: Pre-dose to 48 hours post-dose

  3. AUC0-∞ After Single Dosing With Preladenant for Participants With Mild CRI Versus Healthy Matched Controls

    Blood samples were taken at the following timepoints: pre-dose, 0.25, 0.50, 0.75, 1, 2, 4, 6, 12, 16, 24, 30, 36 and 48 hours postdose in order to determine the AUC0-∞ of preladenant

    Time frame: Pre-dose to 48 hours post-dose

07

Results

Posted Mar 10, 2016

Participant flow

Male or female adults with different degrees of renal impairment along with matched healthy adults with normal renal function were selected for this study.

Participant flow — Overall Study
MilestonePart 1: Severe Renal ImpairmentPart 2: Moderate Renal ImpairmentPart 2: Mild Renal ImpairmentPart 1: Normal Renal FunctionPart 2: Normal Renal Function
Started998911
Completed998911
Not completed00000

Outcome measures

PrimaryArea Under the Concentration-time Curve From Time 0 to Infinity (AUC0-∞) After Single Dosing With Preladenant for Participants With Severe CRI Versus Healthy Matched Controls

Blood samples were taken at the following timepoints: pre-dose, 0.25, 0.50, 0.75, 1, 2, 4, 6, 12, 16, 24, 30, 36 and 48 hours postdose in order to determine the AUC0-∞ of preladenant

Time frame:
Pre-dose to 48 hours post-dose
Reported as:
Geometric mean · ng.hr/mL
Area Under the Concentration-time Curve From Time 0 to Infinity (AUC0-∞) After Single Dosing With Preladenant for Participants With Severe CRI Versus Healthy Matched Controls
ng.hr/mLPart 1: Severe Renal ImpairmentPart 2: Moderate Renal ImpairmentPart 2: Mild Renal ImpairmentPart 1: Normal Renal FunctionPart 2: Normal Renal Function
Area Under the Concentration-time Curve From Time 0 to Infinity (AUC0-∞) After Single Dosing With Preladenant for Participants With Severe CRI Versus Healthy Matched Controls160.53 (81.13 to 317.62)——135.12 (77.83 to 234.56)—
Statistical analysis
  • Part 1: Severe Renal Impairment vs Part 1: Normal Renal Function · Gmr: 1.19 · 90% CI 0.54 to 2.62Severe CRI/Healthy
PrimaryAUC0-∞ After Single Dosing With Preladenant for Participants With Moderate CRI Versus Healthy Matched Controls

Blood samples were taken at the following timepoints: pre-dose, 0.25, 0.50, 0.75, 1, 2, 4, 6, 12, 16, 24, 30, 36 and 48 hours postdose in order to determine the AUC0-∞ of preladenant

Time frame:
Pre-dose to 48 hours post-dose
Reported as:
Geometric mean · ng.hr/mL
AUC0-∞ After Single Dosing With Preladenant for Participants With Moderate CRI Versus Healthy Matched Controls
ng.hr/mLPart 1: Severe Renal ImpairmentPart 2: Moderate Renal ImpairmentPart 2: Mild Renal ImpairmentPart 1: Normal Renal FunctionPart 2: Normal Renal Function
AUC0-∞ After Single Dosing With Preladenant for Participants With Moderate CRI Versus Healthy Matched Controls—197.43 (99.12 to 393.25)——152.18 (67.65 to 342.34)
Statistical analysis
  • Part 2: Moderate Renal Impairment vs Part 2: Normal Renal Function · Gmr: 1.30 · 90% CI 0.59 to 2.87Moderate CRI/Healthy
PrimaryAUC0-∞ After Single Dosing With Preladenant for Participants With Mild CRI Versus Healthy Matched Controls

Blood samples were taken at the following timepoints: pre-dose, 0.25, 0.50, 0.75, 1, 2, 4, 6, 12, 16, 24, 30, 36 and 48 hours postdose in order to determine the AUC0-∞ of preladenant

Time frame:
Pre-dose to 48 hours post-dose
Reported as:
Geometric mean · ng.hr/mL
AUC0-∞ After Single Dosing With Preladenant for Participants With Mild CRI Versus Healthy Matched Controls
ng.hr/mLPart 1: Severe Renal ImpairmentPart 2: Moderate Renal ImpairmentPart 2: Mild Renal ImpairmentPart 1: Normal Renal FunctionPart 2: Normal Renal Function
AUC0-∞ After Single Dosing With Preladenant for Participants With Mild CRI Versus Healthy Matched Controls——275.50 (183.51 to 413.61)—104.66 (65.54 to 167.15)
Statistical analysis
  • Part 2: Mild Renal Impairment vs Part 2: Normal Renal Function · Gmr: 2.63 · 90% CI 1.38 to 5.04Mild CRI/Healthy

Adverse events

Collected over Up to Day 7. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Part 1: Severe Renal Impairment—0/9 (0%)0/9 (0%)
Part 2: Moderate Renal Impairment—0/9 (0%)0/9 (0%)
Part 2: Mild Renal Impairment—0/8 (0%)1/8 (12.5%)
Part 1: Normal Renal Function—0/9 (0%)0/9 (0%)
Part 2: Normal Renal Function—0/11 (0%)0/11 (0%)
Most frequent other events
Most frequent other events
EventPart 1: Severe Renal ImpairmentPart 2: Moderate Renal ImpairmentPart 2: Mild Renal ImpairmentPart 1: Normal Renal FunctionPart 2: Normal Renal Function
ALANINE AMINOTRANSFERASE INCREASEDInvestigations0/90/91/80/90/11
GAMMA-GLUTAMYLTRANSFERASE INCREASEDInvestigations0/90/91/80/90/11

Baseline characteristics

Age, Continuous
Age, Continuous(Years)Part 1: Severe Renal ImpairmentPart 2: Moderate Renal ImpairmentPart 2: Mild Renal ImpairmentPart 1: Normal Renal FunctionPart 2: Normal Renal FunctionTotal
Mean59.6 ± 12.466.9 ± 7.863.3 ± 7.659.3 ± 11.367.4 ± 4.063.5 ± 9.3
Sex: Female, Male
Sex: Female, Male(Participants)Part 1: Severe Renal ImpairmentPart 2: Moderate Renal ImpairmentPart 2: Mild Renal ImpairmentPart 1: Normal Renal FunctionPart 2: Normal Renal FunctionTotal
Female3453520
Male6536626
08

Study locations

No study locations are listed for this record.

09

References and documents

Individual participant data

Plan to share: Yes — https://www.merck.com/clinical-trials/pdf/ProcedureAccessClinicalTrialData.pdf

No publications or documents are linked to this record.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 2, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01323855
Lead sponsor
Merck Sharp & Dohme LLC
Responsible party
Sponsor
First posted
Mar 28, 2011
Start date
Mar 28, 2011
Primary completion
Nov 29, 2011
Completion
Nov 29, 2011
Results posted
Mar 10, 2016
Last update
Oct 2, 2018

Study contacts

Medical Director
study director · Merck Sharp & Dohme LLC

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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