Evaluation of Celecoxib Effects on Amlodipine in Subjects With Existing Hypertension Requiring Antihypertensives

Study Results

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

105 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-11-03

Study Completion Date

2017-07-21

Brief Summary

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The purpose of this study was to evaluate the effect of celecoxib on the efficacy and safety of amlodipine besylate on renal and vascular function in subjects with existing hypertension requiring antihypertensive therapy.

Kitov Pharma Ltd. (Kitov) is developing KIT-302, an oral fixed combination drug product (FCDP) consisting of the calcium channel blocker amlodipine besylate and the nonsteroidal anti-inflammatory drug (NSAID) celecoxib, as a "convenience reformulation" FCDP to facilitate and improve patient compliance with the once a day (qd) administration of its individual components, amlodipine and celecoxib.

The formulation of KIT-302 consists of amlodipine besylate and celecoxib co-formulated in a single immediate release tablet. However, for this study (KIT-302-03-02), commercial celecoxib capsules (Celebrex®) and commercial amlodipine besylate tablets (Norvasc®) were separately over-encapsulated (OE) and matched placebos were used to allow for blinding.

Kitov completed a phase 3 pivotal trial in subjects with newly diagnosed hypertension (KIT-302-03-01) demonstrating that the amlodipine + celecoxib combination was statistically non-inferior to amlodipine monotherapy with regard to reduction of blood pressure. Further, trends towards superior blood pressure lowering effects and improved renal function were observed for the combination. This study (KIT-302-03-02) was conducted to quantify the beneficial renovascular effects noted in the prior study in subjects with existing hypertension requiring antihypertensive therapy.

On May 31, 2018, the United States (US) Food and Drug Administration (FDA) approved KIT-302, under the brand name Consensi® (amlodipine and celecoxib) tablets \[New Drug Application (NDA) 210045\] for the following indication: "patients for whom treatment with amlodipine for hypertension and celecoxib for osteoarthritis are appropriate. Lowering blood pressure reduces the risk of fatal and nonfatal cardiovascular events, primarily strokes and myocardial infarctions."

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Detailed Description

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This was a multi-center, randomized, double blind, placebo controlled study to evaluate the effect of celecoxib on the efficacy, safety, and pharmacokinetics of amlodipine in subjects with existing hypertension requiring antihypertensive therapy. Approximately 105 eligible subjects were to be randomized 3:3:1 to one of three treatment arms.

Arm 1:OE 10 mg Norvasc tablet+OE 200 mg Celebrex capsule (amlodipine+celecoxib arm)

Arm 2:OE 10 mg Norvasc tablet+matched placebo for OE Celebrex capsule (amlodipine+placebo arm)

Arm 3:Matched placebo for OE Norvasc tablet+matched placebo for OE Celebrex capsule (placebo+placebo arm).

Following an up to 14-day screening phase, eligible subjects were randomized to one of the 3 treatment arms. All drugs were to be administered orally qd for 14 days for a total of 14 doses. Visits at the clinic took place at the start and at the end of the screening phase, at Study Day 0 (start of treatment), Day 6, Day 7, Day 13 (end of treatment), Day 14 and Day 28 (end of follow-up).

Conditions

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Hypertension

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

FACTORIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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Amlodipine+Celecoxib

OE 10 mg amlodipine besylate tablet + OE 200 mg celecoxib capsule qd for 14 days

Group Type EXPERIMENTAL

OE 10 mg amlodipine besylate tablet

Intervention Type DRUG

OE 200 mg celecoxib capsule

Intervention Type DRUG

Amlodipine+Placebo

OE 10 mg amlodipine besylate tablet + matched placebo for OE celecoxib capsule qd for 14 days

Group Type ACTIVE_COMPARATOR

OE 10 mg amlodipine besylate tablet

Intervention Type DRUG

Matched placebo for OE celecoxib capsule

Intervention Type DRUG

Placebo+Placebo

Matched placebo for OE amlodipine besylate tablet + matched placebo for OE celecoxib capsule qd for 14 days

Group Type SHAM_COMPARATOR

Matched placebo for OE amlodipine besylate tablet

Intervention Type DRUG

Matched placebo for OE celecoxib capsule

Intervention Type DRUG

Interventions

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OE 10 mg amlodipine besylate tablet

Intervention Type DRUG

OE 200 mg celecoxib capsule

Intervention Type DRUG

Matched placebo for OE amlodipine besylate tablet

Intervention Type DRUG

Matched placebo for OE celecoxib capsule

Intervention Type DRUG

Other Intervention Names

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OE 10 mg Norvasc tablet OE 200 mg Celebrex capsule Matched placebo for OE Norvasc tablet Matched placebo for OE Celebrex capsule

Eligibility Criteria

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Inclusion Criteria

1. Adult 40 to 75 years of age
2. Existing hypertension that is being treated using pharmacological therapy with a single agent that is not a calcium channel blocker
3. SBPday \> 135 and ≤ 169 mmHg and average daytime (9:00 to 21:00) ambulatory diastolic blood pressure (DBPday) ≤ 110 mmHg at Day 0 (after the 10- to 14-day washout from prior blood pressure medication)
4. Body Mass Index of 18.5 to 34.9 kg/m2
5. Healthy (other than hypertension) as determined by the Investigator based on medical history, physical examination, vital signs, 12-lead electrocardiogram (ECG), and clinical laboratory tests
6. A negative pregnancy test at initial screening visit
7. If woman of childbearing potential, agree to use a highly effective form of birth control while on study (from Screening through final study visit)
8. Able to comprehend and sign an informed consent form.

Exclusion Criteria

1. Resting SBP \> 169 mmHg or a resting DBP \> 110 mmHg at initial screening visit while on their standard antihypertensive therapy (where resting is defined as supine for at least 10 minutes with minimal interaction)
2. Weight \< 55 kg
3. Fragile health
4. Evidence of clinically significant findings on screening evaluations (clinical, laboratory, and ECG) which, in the opinion of the Investigator would pose a safety risk or interfere with appropriate interpretation of safety data
5. Current or recent history (within four weeks prior to initial screening visit) of a clinically significant bacterial, fungal, or mycobacterial infection
6. Current clinically significant viral infection
7. History of malignancy, with the exception of cured basal cell or squamous cell carcinoma of the skin
8. Major surgery within four weeks prior to initial screening visit
9. Presence of a malabsorption syndrome possibly affecting drug absorption (e.g., Crohn's disease or chronic pancreatitis)
10. Active peptic ulceration or history of gastrointestinal bleeding
11. History of myocardial infarction, congestive heart failure, or stroke
12. Any current cardiovascular disease (other than hypertension)
13. History of psychotic disorder
14. History of alcoholism or drug addiction or current alcohol or drug use that, in the opinion of the Investigator, will interfere with the subject's ability to comply with the dosing schedule and study evaluations
15. History of any illicit drug use within one year prior to initial screening visit
16. Positive drug screen at initial screening visit. A positive drug screen for opiates only (with all other drug tests negative) will not be a basis for exclusion if the subject took over-the-counter narcotics as indicated on the product label within 24 hours prior to the drug screen
17. Current treatment or treatment within 30 days prior to first dose of study drugs with another investigational drug or current enrollment in another clinical trial
18. Known history of human immunodeficiency virus (HIV), hepatitis B, or hepatitis C
19. Known hypersensitivity to amlodipine or celecoxib
20. Known hypersensitivity to the inactive ingredients in the over-encapsulated (OE) study drugs
21. Asthma, acute rhinitis, nasal polyps, angioneurotic oedema, urticaria or other allergic type reactions after taking acetylsalicylic acid or NSAIDs including cyclooxygenase-2 inhibitors
22. Subjects who, in the opinion of the Investigator, are unable or unlikely to comply with the dosing schedule and study evaluations
23. Pregnant or lactating
24. Unable to correctly use ambulatory blood pressure monitor after instruction on its use
25. Subjects with Child-Pugh Class B or C cirrhosis
26. Subjects currently taking a calcium channel blocker or any NSAID for any reason will be excluded. Subjects will not be withdrawn from these drugs to be enrolled in the trial
27. Subjects that took a calcium channel blocker in the past for any indication
28. Creatinine clearance \< 50 ml/min as estimated by the Cockroft-Gault equation
29. Known cytochrome P450 2C9 poor metabolizer
30. Subjects with allergy or hypersensitivity to sulfonamides

Minimum Eligible Age

40 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No