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HypertensionPhase 3NCT01302691

MK-0954E Study in Participants With Hypertension (MK-0954E-357)

A Phase 3 study testing losartan potassium + hydrochlorothiazide + amlodipine besylate (MK-0954E), Losartan potassium and Amlodipine besylate in people with Hypertension, run by Merck Sharp & Dohme LLC.

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

This study is being done to evaluate the efficacy, safety, and tolerability of losartan potassium 50 mg (L50) + hydrochlorothiazide 12.5 mg (H12.5) + amlodipine besylate 5 mg (A5) (MK-0954E). Read more about this study

Who is it for?
Ages 20 to 80 years
Conditions the study is for
Hypertension
What is being tested?
losartan potassium + hydrochlorothiazide + amlodipine besylate (MK-0954E), Losartan potassium and Amlodipine besylate
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
327 participants
Where
No sites listed yet
Study dates
1 Jan 2011to 1 Apr 2012
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 20 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Participant has a diagnosis of essential hypertension.
  • Participant is being treated with single or dual treatment for hypertension and will be able to discontinue the prior antihypertensive medication.
  • Participant has a mean trough SiDBP of ≥ 90 mmHg and < 110 mmHg.
  • Participant has a mean trough SiSBP of ≥ 140 mmHg and < 200 mmHg.
  • Participant has no clinically significant abnormality at screening visit.

Who cannot join

  • Participant is currently taking > 2 antihypertensive medications.
  • Participant has a history of significant multiple and/or severe allergies to ingredients of Nu-Lotan or Preminent, amlodipine or dihydropyridine drug, and thiazide drug or related drug (i.e., sulfonamide-containing "chlortalidone" medicines).
  • Participant is, at the time of signing informed consent, a user of recreational or illicit drugs or has had a recent history within the last year of drug or alcohol abuse or dependence.
  • Participant is pregnant or breastfeeding, or expecting to conceive OR the pregnancy test is positive at screening visit (Visit 1).
  • Participant is currently participating or has participated in a study with an investigational compound or device within 30 days of signing informed consent.

About this study

Official title: A Phase III, Randomized, Active-Comparator Controlled Clinical Trial to Study the Efficacy and Safety of MK-0954E in Japanese Patients With Essential Hypertension Uncontrolled With Losartan and Amlodipine Co-administration

This study is being done to evaluate the efficacy, safety, and tolerability of losartan potassium 50 mg (L50) + hydrochlorothiazide 12.5 mg (H12.5) + amlodipine besylate 5 mg (A5) (MK-0954E). The primary hypothesis is that L50/H12.5/A5 is more effective in lowering mean trough sitting diastolic blood pressure (SiDBP) after 8 weeks of treatment compared to L50+A5 in Japanese participants with essential hypertension who are not adequately controlled following an 8-week treatment with filter period study drug (L50+A5).

Conditions
Hypertension
Being tested
losartan potassium + hydrochlorothiazide + amlodipine besylate (MK-0954E), Losartan potassium, Amlodipine besylate, Placebo to MK-0954E, Placebo to losartan potassium
Keywords
Essential hypertension, Uncontrolled hypertension, Antihypertensive agents, Blood pressure
Medical subject headings
Hypertension, Essential Hypertension

What participants receive

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

  • losartan potassium + hydrochlorothiazide + amlodipine besylate (MK-0954E)Drug

    One tablet, containing 50 mg losartan potassium, 12.5 mg hydrochlorothiazide, and 5 mg amlodipine besylate, orally, once daily, for 8 weeks.

  • Losartan potassiumDrug

    One tablet, containing 50 mg losartan potassium, orally, once daily, for 8 weeks.

  • Amlodipine besylateDrug

    One capsule, containing 5 mg amlodipine besylate, orally, once daily, for 8 weeks.

  • Placebo to MK-0954EDrug

    One tablet, containing placebo, orally, once daily, for 8 weeks.

  • Placebo to losartan potassiumDrug

    One tablet, containing placebo, orally, once daily, for 8 weeks.

  • Placebo to amlodipine besylateDrug

    One capsule, containing placebo, orally, once daily, for 8 weeks.

Study groups in NCT01302691
Study groupRoleWhat they receive
L50/H12.5/A5ExperimentalParticipants receive 1 tablet, containing 50 mg losartan potassium (L50), 12.5 mg hydrochlorothiazide (H12.5), and 5 mg amlodipine besylate (A5), orally, once daily, for 8 weeks.
Receives: Drug: losartan potassium + hydrochlorothiazide + amlodipine besylate (MK-0954E); Drug: Placebo to losartan potassium; Drug: Placebo to amlodipine besylate
L50 + A5Active comparatorParticipants receive tablet, containing 50 mg losartan potassium (L50), and tablet containing 5 mg amlodipine besylate (A5), orally, once daily, for 8 weeks.
Receives: Drug: Losartan potassium; Drug: Amlodipine besylate; Drug: Placebo to MK-0954E

What is being measured

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

  1. Change in Mean Trough Sitting Diastolic Blood Pressure (SiDBP)

    Sitting diastolic blood pressure was measured by automated sphygmomanometer pre-dose on Day 1 (baseline) and at 24 ± 2 hours after the last study drug administration at Week 8. The difference between the baseline and Week 8 assessments was calculated and summarized by treatment arm.

    Measured: Baseline and Week 8

  2. Percentage of Participants Who Experience ≥1 Adverse Event (AE)

    An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the product, whether or not considered related to the use of the product. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which was temporally associated with the use of the product, was also an AE. The percentage of participants who experienced at least 1 AE during the 10-week treatment and follow-up period were summarized by study drug received.

    Measured: up to 14 days after last dose of study drug (up to 10 weeks)

  3. Percentage of Participants Who Experience ≥1 Drug-related AE

    An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the product, whether or not considered related to the use of the product. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which was temporally associated with the use of the product, was also an AE. Percentage of participants that experienced at least 1 AE that was reported as possibly, probably, or definitely related to the study drug by the investigator during the 10-week treatment and follow-up period were summarized by study drug received.

    Measured: up to 14 days after last dose of study drug (up to 10 weeks)

  4. Percentage of Participants Who Experience ≥1 Serious Adverse Event (SAE)

    An SAE is any AE occurring at any dose or during any use of Sponsor's product that does the following: results in death; is life threatening; results in persistent or significant disability/incapacity; results in or prolongs an existing inpatient hospitalization; is a congenital anomaly/birth defect; is a cancer; is associated with an overdose; is another important medical event. The percentage of participants who experienced at least 1 SAE during the 10-week treatment and follow-up period were summarized by study drug received.

    Measured: up to 14 days after last dose of study drug (up to 10 weeks)

  5. Percentage of Participants Who Experience ≥1 Drug-related SAE

    An SAE is any AE occurring at any dose or during any use of Sponsor's product that does the following: results in death; is life threatening; results in persistent or significant disability/incapacity; results in or prolongs an existing inpatient hospitalization; is a congenital anomaly/birth defect; is a cancer; is associated with an overdose; is another important medical event. Percentage of participants that experienced at least 1 SAE that was reported as possibly, probably, or definitely related to the study drug by the investigator during the 10-week treatment and follow-up period were summarized by study drug received

    Measured: up to 14 days after last dose of study drug (up to 10 weeks)

  6. Percentage of Participants Who Had Study Drug Stopped Due to an AE

    An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the product, whether or not considered related to the use of the product. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which was temporally associated with the use of the product, was also an AE. The percentage of participants who had study drug stopped during the 8-week treatment period due to an AE regardless of whether or not they completed the study was summarized by treatment arm

    Measured: up to 8 weeks

Secondary outcomes (1)
  1. Change in Mean Trough Sitting Systolic Blood Pressure (SiSBP)

    Sitting systolic blood pressure was measured by automated sphygmomanometer pre-dose on Day 1 (baseline) and at 24 ± 2 hours after the last study drug administration at Week 8. The difference between the baseline and Week 8 assessments was calculated and summarized by treatment arm.

    Measured: Baseline and Week 8

Timeline

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

  1. First posted24 Feb 2011 (estimated)
  2. Study start1 Jan 2011
  3. Primary completion1 Apr 2012
  4. Study completion1 Apr 2012

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
327 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01302691
Sponsor's protocol ID
0954E-357
Status last verified
Feb 2019
First submitted
22 Feb 2011
Last updated
15 Mar 2019
Data monitoring committee
No
Individual data sharing
Yes: http://engagezone.msd.com/doc/ProcedureAccessClinicalTrialData.pdf

Publications

  • Rakugi H, Tsuchihashi T, Shimada K, Numaguchi H, Nishida C, Yamaguchi H, Shirakawa M, Azuma K, Fujita KP. Efficacy and safety of fixed-dose losartan/hydrochlorothiazide/amlodipine combination versus losartan/hydrochlorothiazide combination in Japanese patients with essential hypertension. Clin Exp Hypertens. 2015;37(3):260-6. doi: 10.3109/10641963.2014.954712. Epub 2014 Oct 1.

    PubMed 25271811
  • Rakugi H, Tsuchihashi T, Shimada K, Numaguchi H, Nishida C, Yamaguchi H, Shirakawa M, Azuma K, Fujita KP. Add-on effect of hydrochlorothiazide 12.5 mg in Japanese subjects with essential hypertension uncontrolled with losartan 50 mg and amlodipine 5 mg. Hypertens Res. 2015 May;38(5):329-35. doi: 10.1038/hr.2015.3. Epub 2015 Feb 26.

    PubMed 25716649

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing losartan potassium + hydrochlorothiazide + amlodipine besylate (MK-0954E), Losartan potassium and Amlodipine besylate in people with Hypertension, run by Merck Sharp & Dohme LLC.

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 5 inclusion and 5 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 15 Mar 2019. Status can change between updates, so confirm with the study contact before making plans.

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 27 Jan 2017). 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?

Change in Mean Trough Sitting Diastolic Blood Pressure (SiDBP) (time frame: Baseline and Week 8). The study lists 6 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 NCT01302691, 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 15 Mar 2019.

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