A Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of MK8266 in Hypertensive Men (MK-8266-002)

NCT ID: NCT01096160

Last Updated: 2019-08-12

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2010-03-01

Study Completion Date

2010-11-01

Brief Summary

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This study evaluated adverse events (AEs), study discontinuation due to AEs, and pharmacodynamics of MK-8266 in male participants with mild to moderate hypertension.

Detailed Description

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This study evaluated AEs, discontinuation due to AEs, and effects on hemodynamic parameters, including systolic blood pressure (SBP) and aortic augmentation index (AIx), following multiple oral doses of MK-8266. Five serial panels, each consisting of eight participants (40 participants in Panels A, B, C, D, and E), were randomized to receive either MK-8266 or matching placebo twice daily (BID) or three times daily (TID) for 10 consecutive days. Although the original plan was to evaluate MK-8266 treatment in Panels D and E using both BID and TID regimens, the study actually evaluated identical TID regimens in these panels.

Conditions

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Hypertension

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Panel A: MK-8266 BID, 1 mg/Placebo

MK-8266 1 mg (0.7 mg in the morning \[AM\] + 0.3 mg in the evening \[PM\]), or as matching placebo BID.

Group Type EXPERIMENTAL

MK-8226 BID, 1 mg

Intervention Type DRUG

MK-8266 1 mg administered as oral capsules (0.7 mg + 0.3 mg), BID for 10 consecutive days. Panel A was completed prior to initiation of Panel B.

Placebo BID (Panel A)

Intervention Type DRUG

Placebo administered as oral capsules BID for 10 consecutive days. Panel A was completed prior to initiation of Panel B.

Panel B: MK-8266 BID, 1.8 mg/Placebo

MK-8266 1.8 mg (1 mg in the AM + 0.8 mg in the PM), or as matching placebo BID.

Group Type EXPERIMENTAL

MK-8266 BID, 1.8 mg

Intervention Type DRUG

MK-8266 1.8 mg administered as oral capsules (1 mg + 0.8 mg), BID for 10 consecutive days. Panel B was completed prior to initiation of Panel C.

Placebo BID (Panel B)

Intervention Type DRUG

Placebo administered as oral capsules BID for 10 consecutive days. Panel B was completed prior to initiation of Panel C.

Panel C: MK-8266 TID, 1.8 mg/Placebo

MK-8266 TID, 1.8 mg (0.6 mg every 6 hours \[q6hr\]), or as matching placebo TID.

Group Type EXPERIMENTAL

MK-8266 TID, 1.8 mg

Intervention Type DRUG

MK-8266 1.8 mg administered as oral capsules (0.6 mg), TID for 10 consecutive days. Panel C was completed prior to initiation of Panel D.

Placebo TID (Panel C)

Intervention Type DRUG

Placebo administered as oral capsules TID for 10 consecutive days. Panel C was completed prior to initiation of Panel D.

Panel D: MK-8266 TID, 2.4 mg/Placebo

MK-8266 TID (Panel D), 2.4 mg (0.8 mg q6hr), or as matching placebo TID. Panel D was completed prior to initiation of Panel E.

Group Type EXPERIMENTAL

MK-8266 TID, 2.4 mg

Intervention Type DRUG

MK-8266 TID (Panel D), 2.4 mg administered as oral capsules (0.8 mg), TID for 10 consecutive days. Panel D was completed prior to initiation of Panel E.

Placebo TID (Panel D)

Intervention Type DRUG

Placebo administered as oral capsules TID for 10 consecutive days. Panel D was completed prior to initiation of Panel E.

Panel E: MK-8266 TID, 2.4 mg/Placebo

MK-8266 TID (Panel E), 2.4 mg (0.8 mg q6hr), or as matching placebo TID. Panel E was initiated after completion of Panel D.

Group Type EXPERIMENTAL

MK-8266 TID, 2.4 mg

Intervention Type DRUG

MK-8266 TID (Panel E), 2.4 mg administered as oral capsules (0.8 mg), TID for 10 consecutive days. Panel E was initiated after completion of Panel D.

Placebo TID (Panel E)

Intervention Type DRUG

Placebo administered as oral capsules TID for 10 consecutive days. Panel E was initiated after completion of Panel D.

Interventions

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MK-8226 BID, 1 mg

MK-8266 1 mg administered as oral capsules (0.7 mg + 0.3 mg), BID for 10 consecutive days. Panel A was completed prior to initiation of Panel B.

Intervention Type DRUG

MK-8266 BID, 1.8 mg

MK-8266 1.8 mg administered as oral capsules (1 mg + 0.8 mg), BID for 10 consecutive days. Panel B was completed prior to initiation of Panel C.

Intervention Type DRUG

MK-8266 TID, 1.8 mg

MK-8266 1.8 mg administered as oral capsules (0.6 mg), TID for 10 consecutive days. Panel C was completed prior to initiation of Panel D.

Intervention Type DRUG

MK-8266 TID, 2.4 mg

MK-8266 TID (Panel D), 2.4 mg administered as oral capsules (0.8 mg), TID for 10 consecutive days. Panel D was completed prior to initiation of Panel E.

Intervention Type DRUG

MK-8266 TID, 2.4 mg

MK-8266 TID (Panel E), 2.4 mg administered as oral capsules (0.8 mg), TID for 10 consecutive days. Panel E was initiated after completion of Panel D.

Intervention Type DRUG

Placebo BID (Panel A)

Placebo administered as oral capsules BID for 10 consecutive days. Panel A was completed prior to initiation of Panel B.

Intervention Type DRUG

Placebo BID (Panel B)

Placebo administered as oral capsules BID for 10 consecutive days. Panel B was completed prior to initiation of Panel C.

Intervention Type DRUG

Placebo TID (Panel C)

Placebo administered as oral capsules TID for 10 consecutive days. Panel C was completed prior to initiation of Panel D.

Intervention Type DRUG

Placebo TID (Panel D)

Placebo administered as oral capsules TID for 10 consecutive days. Panel D was completed prior to initiation of Panel E.

Intervention Type DRUG

Placebo TID (Panel E)

Placebo administered as oral capsules TID for 10 consecutive days. Panel E was initiated after completion of Panel D.

Intervention Type DRUG

Other Intervention Names

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MK-8266 MK-8266 MK-8266 MK-8266 MK-8266

Eligibility Criteria

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Inclusion Criteria

* Participant is male with essential hypertension (high blood pressure)
* Participant is in good general health (with the exception of hypertension)
* Participant has a Body Mass Index (BMI) \<= 33 kg/m\^2 at the Screening visit
* Participant has a platelet count \>= 150,000 cu/mL at the Screening visit
* Participant has a positive AIx at the Screening visit

Exclusion Criteria

* Participant has a history of stroke, chronic seizure, or major neurological disease
* Participant has a functional disability that can interfere with rising from a seated position to the standing position
* Participant has any history of a bleeding or clotting disorder
* Participant has a history of cancer
* Participant is unable to refrain from or anticipates the use of any prescription or non-prescription medication
* Participant consumes excessive amounts of alcohol or caffeinated beverages daily
Minimum Eligible Age

18 Years

Maximum Eligible Age

55 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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Merck Sharp & Dohme LLC

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Medical Director

Role: STUDY_DIRECTOR

Merck Sharp & Dohme LLC

Other Identifiers

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2010-018654-13

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

8266-002

Identifier Type: -

Identifier Source: org_study_id

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