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伊班膦酸钠片|Boniva(ibandronate sodium tablets)

2016-09-12 08:28:47  作者:新特药房  来源:互联网  浏览次数:0  文字大小:【】【】【
简介: 英文药名: Boniva(ibandronate sodium tablets) 中文药名: 伊班膦酸钠片 生产厂家: 基因泰克公司[罗氏]药品名称英文药名: Boniva (ibandronate sodium tablets) 中文药名: 伊班膦酸钠片 药品介绍人 ...

英文药名: Boniva(ibandronate sodium tablets)

中文药名: 伊班膦酸钠片

生产厂家: 基因泰克公司[罗氏]
药品名称
英文药名: Boniva (ibandronate sodium tablets)
中文药名: 伊班膦酸钠片
药品介绍
人体的骨骼是一个有生命的、复杂的组织器官。在人的一生中,老的骨组织不停地被清除,新的骨组织不停地建成并替代被清除的老的骨组织。它的生长发育及代谢是由成骨细胞和破骨细胞来调节和控制的。当破骨细胞吸收的量大于成骨细胞分泌的量,导致体内骨量减少,即造成骨质疏松,极易发生骨折。
骨质疏松症是一个引起越来越多重视的世界范围的健康问题。其发病率已跃居常见病、多发病的第七位。目前全世界约2亿人患有骨质疏松,并且女性多于男性。根据世界卫生组织的标准,美国国家健康和营养调查(NHANES III,1988?1994年)结果表明, 50岁以上人群中,1/2的女性、1/5的男性在他们的一生中都会出现骨质疏松性骨折,一旦患者经历了第一次骨质疏松性骨折,继发性骨折的危险明显加大。世界卫生组织把每年的10月20日“国际骨质疏松日”。
罗氏公司(Roche )开发出了新一代的双膦酸盐,伊班膦酸盐(ibandronate),2003年被欧盟首先批准。它由罗氏公司和葛兰素史克公司以商品名邦罗力(Boniva)共同推出。伊班膦酸盐首先由弗莱施在和德国宝灵曼制药公司(Boehringer Mannheim)的合作中于1988年合成。宝灵曼公司于1997年被瑞士的罗氏公司兼并,于是伊班膦酸盐变成了罗氏的分子。当时肿瘤学和骨骼代谢是罗氏公司的两个研究重点。
后来的药理研究发现,在细胞水平,双膦酸盐对骨吸收部位特别是破骨细胞作用的部位有亲和性,能抑制破骨细胞的活性,并导致破骨细胞凋亡。ALN能抑制与降低骨的转换过程(例如,骨重建单位数量),而且使这些骨重建部位的骨吸收与骨量丢失减缓和降低,并延长了矿化时间,从而使相对骨密度值逐渐增加。
一月1次的口服伊班膦酸钠片
罗氏公司和葛兰素史克公司的口服伊班膦酸钠150mg片(商品名:Boniva),一月1次治疗绝经后妇女的骨质疏松。
本品是治疗任何慢性病中迄今首个上市一月1次1片的口服片。患者一年只要服用12片,而目前以双磷酸盐治疗每周服用共需52片。本品批准意义重大,它向患者提供了有效且服用方便的药品。
3年多的临床研究显示,原一日1次的伊班膦酸钠(2.5mg)用于治疗和预防骨质疏松可显著减少绝经后骨质疏松妇女脊椎新骨折的发生率和增加绝经后无骨质疏松妇女的骨矿物质密度(BMD)。
现一月1次口服伊班膦酸钠(150mg)片的批准是基于对1,602例绝经后骨质疏松妇女多国随机双盲研究的数据。结果显示,治疗一年后本品一月1次给药增加腰脊柱和其它骨骼部位的BMD至少可与小剂量一日1次连续给药一年相当。
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包装规格
BONIVA 1MG/ML 3ML SYR 1/EA  IBANDRONATE SODIUM     00004-0191-09 
BONIVA PFS 3MG 3ML 1  IBANDRONATE SODIUM     00004-0191-09
BONIVA TAB 150MG 3  IBANDRONATE SODIUM     00004-0186-82
BONIVA TAB 150MG 3  IBANDRONATE SODIUM     00004-0186-83
生产厂家:美国基因泰克公司[罗氏]


HIGHLIGHTS OF PRESCRIBING INFORMATION
These highlights do not include all the information needed to use BONIVA Tablets safely and effectively. See full prescribing information for
BONIVA Tablets. BONIVA® (ibandronate sodium) Tablets Initial U.S. Approval: 2003
RECENT MAJOR CHANGES
INDICATIONS AND USAGE
BONIVA is a bisphosphonate indicated for the treatment and prevention of postmenopausal osteoporosis. (1.1)

Contraindications (4) 1/2010
Warnings and Precautions (5.1) 1/2010
DOSAGE AND ADMINISTRATION
One 150 mg tablet taken once monthly or one 2.5 mg tablet taken once daily (2.1)
Dosing instructions (2.2)
Swallow whole tablet with 6-8 oz of plain water only, at least 60 minutes before the first food, beverage, or medication of the day.
Do not lie down for at least 60 minutes after taking BONIVA.
Do not eat, drink (except for water), or take other medication for 60 minutes after taking BONIVA.
DOSAGE FORMS AND STRENGTHS
Tablets: 2.5mg, 150mg (3)
CONTRAINDICATIONS
Abnormalities of the esophagus which delay esophageal emptying such as stricture or achalasia (4, 5.1)
Inability to stand or sit upright for at least 60 minutes (4, 5.1)
Hypocalcemia (4)
Hypersensitivity to BONIVA (4)
WARNINGS AND PRECAUTIONS
Severe irritation of the upper gastrointestinal (GI) mucosa can occur. Dosing instructions should be followed and caution should be used in patients with active upper GI disease. Discontinue use if new or worsening symptoms occur. (5.1)
Hypocalcemia may worsen during treatment. Correct hypocalcemia before use. (5.2)
Severe bone, joint, and muscle pain may occur. Consider discontinuing use if symptoms develop. (5.3)
Osteonecrosis of the jaw has been reported. (5.4)
ADVERSE REACTIONS
The most common adverse reactions (>5%) are back pain, dyspepsia, pain in extremity, diarrhea, headache, and myalgia. (6)
To report SUSPECTED ADVERSE REACTIONS, contact Genentech at 1-888-835-2555 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
DRUG INTERACTIONS
Calcium supplements, antacids and some oral medications may interfere with absorption of ibandronate. (7.1)
Use caution when co-prescribing aspirin/nonsteroidal anti-inflammatory drugs that may worsen gastrointestinal irritation. (7.2)
USE IN SPECIFIC POPULATIONS
BONIVA is not recommended in patients with severe renal impairment (creatinine clearance <30 mL/min). (5.5, 8.6)
See 17 for PATIENT COUNSELING INFORMATION.
Revised: 12/2010
FULL PRESCRIBING INFORMATION: CONTENTS*
1 INDICATIONS AND USAGE
Enter section text here
1.1 Treatment and Prevention of Postmenopausal Osteoporosis
BONIVA is indicated for the treatment and prevention of osteoporosis in postmenopausal women. BONIVA increases bone mineral density (BMD) and reduces the incidence of vertebral fractures. 
2 DOSAGE AND ADMINISTRATION
Enter section text here
2.1 Dose
The dose of BONIVA is either one 150 mg tablet taken once monthly on the same date each month or one 2.5 mg tablet taken once daily.
2.2 Dosing Instructions
To maximize absorption and clinical benefit, BONIVA should be taken at least 60 minutes before the first food or drink (other than water) of the day or before taking any oral medication or supplementation, including calcium, antacids, or vitamins (see DRUG INTERACTIONS [7.1]).
To facilitate delivery to the stomach and thus reduce the potential for esophageal irritation, BONIVA tablets should be swallowed whole with a full glass of plain water (6 to 8 oz) while the patient is standing or sitting in an upright position. Patients should not lie down for 60 minutes after taking BONIVA (see WARNINGS AND PRECAUTIONS [5.1]).
Patients should not eat, drink anything except water, or take other medications for at least 60 minutes after taking BONIVA.
Plain water is the only drink that should be taken with BONIVA. Note that some mineral waters may have a higher concentration of calcium and therefore should not be used.
Patients should not chew or suck the tablet because of a potential for oropharyngeal ulceration.
The BONIVA 150 mg tablet should be taken on the same date each month (i.e., the patient's BONIVA day).
The patient must not take two 150 mg tablets within the same week.
If the once-monthly dose is missed, and the patient's next scheduled BONIVA day is more than 7 days away, the patient should be instructed to take one BONIVA 150 mg tablet in the morning following the date that it is remembered. The patient should then return to taking one BONIVA 150 mg tablet every month in the morning of their chosen day, according to their original schedule.
If the once-monthly dose is missed, and the patient's next scheduled BONIVA day is only 1 to 7 days away, the patient must wait until the subsequent month's scheduled BONIVA day to take their tablet. The patient should then return to taking one BONIVA 150 mg tablet every month in the morning of their chosen day, according to their original schedule.
2.3 Recommendations for Calcium and Vitamin D Supplementation
Patients should receive supplemental calcium and vitamin D if dietary intake is inadequate (see DRUG INTERACTIONS [7.1]).
2.4 use in Specific Populations
BONIVA is not recommended for use in patients with severe renal impairment (creatinine clearance of <30 mL/min).
No dose adjustment is necessary for patients with mild or moderate renal impairment.
No dose adjustment is necessary for the elderly, or for patients with hepatic impairment.
3 DOSAGE FORMS AND STRENGTHS
Tablets, 2.5 mg and 150 mg
4 CONTRAINDICATIONS
Abnormalities of the esophagus which delay esophageal emptying such as stricture or achalasia (see Upper Gastrointestinal Adverse Reactions [5.1])
Inability to stand or sit upright for at least 60 minutes (see Dosing Instructions [2.2], Upper Gastrointestinal Adverse Reactions [5.1])
Hypocalcemia (see WARNINGS AND PRECAUTIONS [5.2])
Known hypersensitivity to BONIVA or to any of its excipients (see ADVERSE REACTIONS [6.2]).
5 WARNINGS AND PRECAUTIONS
Enter section text here
5.1 Upper Gastrointestinal Adverse Reactions
BONIVA, like other bisphosphonates administered orally, may cause local irritation of the upper gastrointestinal mucosa. Because of these possible irritant effects and a potential for worsening of the underlying disease, caution should be used when BONIVA is given to patients with active upper gastrointestinal problems (such as known Barrett's esophagus, dysphagia, other esophageal diseases, gastritis, duodenitis or ulcers).
Esophageal adverse experiences, such as esophagitis, esophageal ulcers and esophageal erosions, occasionally with bleeding and rarely followed by esophageal stricture or perforation, have been reported in patients receiving treatment with oral bisphosphonates. In some cases, these have been severe and required hospitalization. Physicians should therefore be alert to any signs or symptoms signaling a possible esophageal reaction and patients should be instructed to discontinue BONIVA and seek medical attention if they develop dysphagia, odynophagia, retrosternal pain or new or worsening heartburn.
The risk of severe esophageal adverse experiences appears to be greater in patients who lie down after taking oral bisphosphonates and/or who fail to swallow it with the recommended full glass (6-8 oz) of water, and/or who continue to take oral bisphosphonates after developing symptoms suggestive of esophageal irritation. Therefore, it is very important that the full dosing instructions are provided to, and understood by, the patient (see DOSAGE AND ADMINISTRATION [2.2]). In patients who cannot comply with dosing instructions due to mental disability, therapy with BONIVA should be used under appropriate supervision.
There have been post-marketing reports of gastric and duodenal ulcers with oral bisphosphonate use, some severe and with complications, although no increased risk was observed in controlled clinical trials.
5.2 Hypocalcemia and Mineral Metabolsim
Treat hypocalcemia and other disturbances of bone and mineral metabolism before starting BONIVA therapy. Adequate intake of calcium and vitamin D is important in all patients to prevent hypocalcemia (see DOSAGE AND ADMINISTRATION [2.3]). Hypocalcemia following dosing has been reported postmarketing.
5.3 Musculoskeletal Pain
Severe and occasionally incapacitating bone, joint, and/or muscle pain has been reported in patients taking BONIVA and other bisphosphonates (see ADVERSE REACTIONS [6]). The time to onset of symptoms varied from one day to several months after starting the drug. Most patients had relief of symptoms after stopping. A subset had recurrence of symptoms when rechallenged with the same drug or another bisphosphonate. Consider discontinuing use if severe symptoms develop.
5.4 Jaw Osteonecrosis
Osteonecrosis, primarily in the jaw, has been reported in patients treated with bisphosphonates. Most cases have been in cancer patients undergoing dental procedures, but some have occurred in patients with postmenopausal osteoporosis or other diagnoses. Known risk factors for osteonecrosis include a diagnosis of cancer, concomitant therapies (e.g., chemotherapy, radiotherapy, corticosteroids), and co-morbid disorders (e.g., anemia, coagulopathy, infection, pre-existing dental disease). Most reported cases have been in patients treated with bisphosphonates intravenously but some have been in patients treated orally (see ADVERSE REACTIONS [6.2]).
For patients who develop osteonecrosis of the jaw (ONJ) while on bisphosphonate therapy, dental surgery may exacerbate the condition. For patients requiring dental procedures, there are no data available to suggest whether discontinuation of bisphosphonate treatment reduces the risk of ONJ. Clinical judgment of the treating physician should guide the management plan of each patient based on individual benefit/risk assessment.
5.5 Severe Renal Impairment
BONIVA is not recommended for use in patients with severe renal impairment (creatinine clearance of <30 mL/min).
6 ADVERSE REACTIONS
Enter section text here
6.1 Clinical Trials Experience
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
Treatment and Prevention of Postmenopausal Osteoporosis
Daily Dosing
The safety of BONIVA 2.5 mg once daily in the treatment and prevention of postmenopausal osteoporosis was assessed in 3577 patients aged 41 – 82 years. The duration of the trials was 2 to 3 years, with 1134 patients exposed to placebo and 1140 exposed to BONIVA 2.5 mg. Patients with pre-existing gastrointestinal disease and concomitant use of non-steroidal anti-inflammatory drugs, proton pump inhibitors and H2 antagonists were included in these clinical trials. All patients received 500 mg calcium plus 400 IU vitamin D supplementation daily.
The incidence of all-cause mortality was 1% in the placebo group and 1.2% in the BONIVA 2.5 mg daily group. The incidence of serious adverse events was 20% in the placebo group and 23% in the BONIVA 2.5 mg daily group. The percentage of patients who withdrew from treatment due to adverse events was approximately 17% in both the BONIVA 2.5 mg daily group and the placebo group. Table 1 lists adverse events from the treatment and prevention studies reported in ≥2% of patients and more frequently in patients treated daily with BONIVA than patients treated with placebo.
Table 1 Adverse Events Occurring at a Frequency ≥2% and More Frequently in Patients Treated with BONIVA than in Patients Treated with Placebo Daily in the Osteoporosis Treatment and Prevention Studies

Body System Placebo
%
(n=1134)
BONIVA 2.5 mg
%
(n=1140)
Body as a Whole

Back Pain 12.2 13.5
Pain in Extremity 6.4 7.8
Infection 3.4 4.3
Asthenia 2.3 3.5
Allergic Reaction 1.9 2.5
Digestive System

Dyspepsia 9.8 11.9
Diarrhea 5.0 6.8
Tooth Disorder 2.3 3.5
Vomiting 2.1 2.7
Gastritis 1.9 2.2
Metabolic and Nutritional Disorders

Hypercholesterolemia 4.2 4.8
Musculoskeletal System

Myalgia 5.1 5.7
Joint Disorder 3.3 3.6
Arthritis 2.7 3.2
Nervous System

Headache 5.8 6.5
Dizziness 2.6 3.7
Vertigo 2.5 3.0
Nerve Root Lesion 1.9 2.2
Respiratory System

Upper Respiratory Infection 33.2 33.7
Bronchitis 6.8 10.0
Pneumonia 4.3 5.9
Pharyngitis 1.5 2.5
Urogenital System

Urinary Tract Infection 4.2 5.5
Gastrointestinal Adverse Events
The incidence of adverse events in the placebo and BONIVA 2.5 mg daily groups were: dyspepsia (10% vs. 12%), diarrhea (5% vs. 7%), and abdominal pain (5% vs. 6%).
Musculoskeletal Adverse Events
The incidence of adverse events in the placebo and BONIVA 2.5 mg daily groups were: back pain (12% vs. 14%), arthralgia (14% vs. 14%) and myalgia (5% vs. 6%).
Ocular Adverse Events
Reports in the medical literature indicate that bisphosphonates may be associated with ocular inflammation such as iritis and scleritis. In some cases, these events did not resolve until the bisphosphonate was discontinued. There were no reports of ocular inflammation in studies with BONIVA 2.5 mg daily.
Monthly Dosing
The safety of BONIVA 150 mg once monthly in the treatment of postmenopausal osteoporosis was assessed in a two year trial which enrolled 1583 patients aged 54 – 81 years, with 395 patients exposed to BONIVA 2.5 mg daily and 396 exposed to BONIVA 150 mg monthly. Patients with active or significant pre-existing gastrointestinal disease were excluded from this trial. Patients with dyspepsia or concomitant use of non-steroidal anti-inflammatory drugs, proton pump inhibitors and H2 antagonists were included in this study. All patients received 500 mg calcium plus 400 IU vitamin D supplementation daily.
After one year, the incidence of all-cause mortality was 0.3% in both the BONIVA 2.5 mg daily group and the BONIVA 150 mg monthly group. The incidence of serious adverse events was 5% in the BONIVA 2.5 mg daily group and 7% in the BONIVA 150 mg monthly group. The percentage of patients who withdrew from treatment due to adverse events was 9% in the BONIVA 2.5 mg daily group and 8% in the BONIVA 150 mg monthly group. Table 2 lists the adverse events reported in ≥2% of patients.
Table 2 Adverse Events with an Incidence of at Least 2% in Patients Treated with BONIVA 2.5 mg Daily or 150 mg Once-Monthly for Treatment of Postmenopausal Osteoporosis

Body System/Adverse Event BONIVA
2.5 mg Daily
%
(n=395)
BONIVA
150 mg Monthly
%
(n=396)
Vascular Disorders

Hypertension 7.3 6.3
Gastrointestinal Disorders

Dyspepsia 7.1 5.6
Nausea 4.8 5.1
Diarrhea 4.1 5.1
Constipation 2.5 4.0
Abdominal Pain* 5.3 7.8
Musculoskeletal and Connective Tissue Disorders

Arthralgia 3.5 5.6
Back Pain 4.3 4.5
Pain in Extremity 1.3 4.0
Localized Osteoarthritis 1.3 3.0
Myalgia 0.8 2.0
Muscle Cramp 2.0 1.8
Infections and Infestations

Influenza 3.8 4.0
Nasopharyngitis 4.3 3.5
Bronchitis 3.5 2.5
Urinary Tract Infection 1.8 2.3
Upper Respiratory Tract Infection 2.0 2.0
Nervous System Disorders

Headache 4.1 3.3
Dizziness 1.0 2.3
General Disorders and Administration Site Conditions

Influenza-like Illness† 0.8 3.3
Skin and Subcutaneous Tissue Disorders

Rash‡ 1.3 2.3
Psychiatric Disorders

Insomnia 0.8 2.0
Combination of abdominal pain and abdominal pain upper
Combination of influenza-like illness and acute phase reaction
Combination of rash pruritic, rash macular, rash papular, rash generalized, rash erythematous, dermatitis, dermatitis allergic, dermatitis medicamentosa, erythema and exanthem
Gastrointestinal Adverse Events
The incidence of adverse events in the BONIVA 2.5 mg daily and BONIVA 150 mg monthly groups were: dyspepsia (7% vs. 6%), diarrhea (4% vs. 5%), and abdominal pain (5% vs. 8%).
Musculoskeletal Adverse Events
The incidence of adverse events in the BONIVA 2.5 mg daily and BONIVA 150 mg monthly groups were: back pain (4% vs. 5%), arthralgia (4% vs. 6%) and myalgia (1% vs. 2%).
Acute Phase Reactions
Symptoms consistent with acute phase reactions have been reported with bisphosphonate use. Over the two years of the study, the overall incidence of acute phase reaction symptoms was 3% in the BONIVA 2.5 mg daily group and 9% in the BONIVA 150 mg monthly group. These incidence rates are based on the reporting of any of 33 acute-phase reaction like symptoms within 3 days of the monthly dosing and lasting 7 days or less. Influenza like illness was reported in no patients in the BONIVA 2.5 mg daily group and 2% in the BONIVA 150 mg monthly group.
Ocular Adverse Events
Two patients who received BONIVA 150 mg once-monthly experienced ocular inflammation, one was a case of uveitis and the other scleritis.
One hundred sixty (160) postmenopausal women without osteoporosis participated in a 1-year, double-blind, placebo-controlled study of BONIVA 150 mg once-monthly for prevention of bone loss. Seventy-seven subjects received BONIVA and 83 subjects received placebo. The overall pattern of adverse events was similar to that previously observed.
6.2 Postmarketing Experience
The following adverse reactions have been identified during postapproval use of BONIVA. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.
Hypersensitivity
Allergic reactions including anaphylaxis, angioedema, bronchospasm and rash have been reported (see CONTRAINDICATIONS [4]).
Hypocalcemia
Hypocalcemia has been reported in patients treated with BONIVA (see WARNINGS AND PRECAUTIONS [5.2]).
Musculoskeletal Pain
Bone, joint, or muscle pain (musculoskeletal pain), described as severe or incapacitating, has been reported (see WARNINGS AND PRECAUTIONS [5.3]).
Jaw Osteonecrosis
Osteonecrosis of the jaw has been reported in patients treated with BONIVA (see WARNINGS AND PRECAUTIONS [5.4]).
7 DRUG INTERACTIONS
Enter section text here
7.1 Calcium Supplements/Antacids
Products containing calcium and other multivalent cations (such as aluminum, magnesium, iron) are likely to interfere with absorption of BONIVA. BONIVA should be taken at least 60 minutes before any oral medications, including medications containing multivalent cations (such as antacids, supplements or vitamins). Also, patients should wait at least 60 minutes after dosing before taking any other oral medications (see PATIENT COUNSELING INFORMATION [17.1]).
7.2 Aspirin/Nonsteroidal Anti-Inflammatory Drugs (NSAIDs)
Because aspirin, NSAIDs, and bisphosphonates are all associated with gastrointestinal irritation, caution should be exercised in the concomitant use of aspirin or NSAIDs with BONIVA.
7.3 H2 Blockers
In healthy volunteers, co-administration with ranitidine resulted in a 20% increased bioavailability of ibandronate, which was not considered to be clinically relevant (see CLINICAL PHARMACOLOGY [12.3]).
7.4 Drug/Laboratory Test Interactions
Bisphosphonates are known to interfere with the use of bone-imaging agents. Specific studies with ibandronate have not been performed.
8 USE IN SPECIFIC POPULATIONS
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8.1 Pregnancy: Category C
There are no adequate and well-controlled studies in pregnant women. BONIVA should be used during pregnancy only if the potential benefit justifies the potential risk to the mother and fetus.
Bisphosphonates are incorporated into the bone matrix, from where they are gradually released over periods of weeks to years. The extent of bisphosphonate incorporation into adult bone, and hence, the amount available for release back into the systemic circulation, is directly related to the total dose and duration of bisphosphonate use. Although there are no data on fetal risk in humans, bisphosphonates do cause fetal harm in animals, and animal data suggest that uptake of bisphosphonates into fetal bone is greater than into maternal bone. Therefore, there is a theoretical risk of fetal harm (e.g., skeletal and other abnormalities) if a woman becomes pregnant after completing a course of bisphosphonate therapy. The impact of variables such as time between cessation of bisphosphonate therapy to conception, the particular bisphosphonate used, and the route of administration (intravenous versus oral) on this risk has not been established.
In female rats given ibandronate orally at doses ≥3 times human exposure at the recommended daily oral dose of 2.5 mg or ≥1 times human exposure at the recommended once-monthly oral dose of 150 mg beginning 14 days before mating and continuing through lactation, maternal deaths were observed at the time of delivery in all dose groups. Perinatal pup loss in dams given 45 times human exposure at the recommended daily dose and 13 times the recommended once-monthly dose was likely related to maternal dystocia. Calcium supplementation did not completely prevent dystocia and periparturient mortality in any of the treated groups at ≥16 times the recommended daily dose and ≥4.6 times the recommended once-monthly dose. A low incidence of postimplantation loss was observed in rats treated from 14 days before mating throughout lactation or during gestation, only at doses causing maternal dystocia and periparturient mortality. In pregnant rats dosed orally from gestation day 17 through lactation day 21 (following closure of the hard palate through weaning), maternal toxicity, including dystocia and mortality, fetal perinatal and postnatal mortality, were observed at doses equivalent to human exposure at the recommended daily and ≥4 times the recommended once-monthly dose. Periparturient mortality has also been observed with other bisphosphonates and appears to be a class effect related to inhibition of skeletal calcium mobilization resulting in hypocalcemia and dystocia (see NONCLINICAL TOXICOLOGY [13.2]).
Exposure of pregnant rats during the period of organogenesis resulted in an increased fetal incidence of RPU (renal pelvis ureter) syndrome at oral doses 30 times the human exposure at the recommended daily oral dose of 2.5 mg and ≥9 times the recommended once-monthly oral dose of 150 mg. Impaired pup neuromuscular development (cliff avoidance test) was observed at 45 times human exposure at the daily dose and 13 times the once-monthly dose (see NONCLINICAL TOXICOLOGY [13.2]).
In pregnant rabbits treated orally with ibandronate during gestation at doses ≥8 times the recommended human daily oral dose of 2.5 mg and ≥4 times the recommended human once-monthly oral dose of 150 mg, dose-related maternal mortality was observed in all treatment groups. The deaths occurred prior to parturition and were associated with lung edema and hemorrhage. No significant fetal anomalies were observed (see NONCLINICAL TOXICOLOGY [13.2]).
8.3 Nursing Mothers
It is not known whether BONIVA is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when BONIVA is administered to a nursing woman. In lactating rats treated with intravenous doses, ibandronate was present in breast milk from 2 to 24 hours after dose administration. Concentrations in milk averaged 1.5 times plasma concentrations.
8.4 Pediatric Use
Safety and effectiveness in pediatric patients have not been established.
8.5 Geriatric Use
Of the patients receiving BONIVA 2.5 mg daily in postmenopausal osteoporosis studies, 52% were over 65 years of age, and 10% were over 75 years of age. Of the patients receiving BONIVA 150 mg once-monthly in the postmenopausal osteoporosis 1-year study, 52% were over 65 years of age, and 9% were over 75 years of age. No overall differences in effectiveness or safety were observed between these patients and younger patients but greater sensitivity in some older individuals cannot be ruled out.
8.6 Renal Impairment
BONIVA is not recommended for use in patients with severe renal impairment (creatinine clearance <30 mL/min).
10 OVERDOSAGE
No specific information is available on the treatment of overdosage of BONIVA. However, based on knowledge of this class of compounds, oral overdosage may result in hypocalcemia, hypophosphatemia, and upper gastrointestinal adverse events, such as upset stomach, dyspepsia, esophagitis, gastritis, or ulcer. Milk or antacids should be given to bind BONIVA. Due to the risk of esophageal irritation, vomiting should not be induced, and the patient should remain fully upright. Dialysis would not be beneficial.
11 DESCRIPTION
BONIVA (ibandronate sodium) is a nitrogen-containing bisphosphonate that inhibits osteoclast-mediated bone resorption. The chemical name for ibandronate sodium is 3-(N-methyl-N-pentyl) amino-1-hydroxypropane-1,1-diphosphonic acid, monosodium salt, monohydrate with the molecular formula C9H22NO7P2Na•H2O and a molecular weight of 359.24. Ibandronate sodium is a white- to off-white powder. It is freely soluble in water and practically insoluble in organic solvents. Ibandronate sodium has the following structural formula:


BONIVA is available as a white, oblong, 2.5 mg film-coated tablet for daily oral administration or as a white, oblong, 150 mg film-coated tablet for once-monthly oral administration. One 2.5 mg film-coated tablet contains 2.813 mg ibandronate monosodium monohydrate, equivalent to 2.5 mg free acid. One 150 mg film-coated tablet contains 168.75 mg ibandronate monosodium monohydrate, equivalent to 150 mg free acid. BONIVA also contains the following inactive ingredients: lactose monohydrate, povidone, microcrystalline cellulose, crospovidone, purified stearic acid, colloidal silicon dioxide, and purified water. The tablet film coating contains hypromellose, titanium dioxide, talc, polyethylene glycol 6000, and purified water.
12 CLINICAL PHARMACOLOGY
Enter section text here
12.1 Mechanism of Action
The action of ibandronate on bone tissue is based on its affinity for hydroxyapatite, which is part of the mineral matrix of bone. Ibandronate inhibits osteoclast activity and reduces bone resorption and turnover. In postmenopausal women, it reduces the elevated rate of bone turnover, leading to, on average, a net gain in bone mass.
12.2 Pharmacodynamics
Osteoporosis is characterized by decreased bone mass and increased fracture risk, most commonly at the spine, hip, and wrist. The diagnosis can be confirmed by a finding of low bone mass, evidence of fracture on x-ray, a history of osteoporotic fracture, or height loss or kyphosis indicative of vertebral fracture. While osteoporosis occurs in both men and women, it is most common among women following menopause. In healthy humans, bone formation and resorption are closely linked; old bone is resorbed and replaced by newly formed bone. In postmenopausal osteoporosis, bone resorption exceeds bone formation, leading to bone loss and increased risk of fracture. After menopause, the risk of fractures of the spine and hip increases; approximately 40% of 50-year-old women will experience an osteoporosis-related fracture during their remaining lifetimes.
BONIVA produced biochemical changes indicative of dose-dependent inhibition of bone resorption, including decreases of biochemical markers of bone collagen degradation (such as deoxypyridinoline, and cross-linked C-telopeptide of Type I collagen) in the daily dose range of 0.25 mg to 5 mg and once-monthly doses from 100 mg to 150 mg in postmenopausal women.
Treatment with 2.5 mg daily BONIVA resulted in decreases in biochemical markers of bone turnover, including urinary C-terminal telopeptide of Type I collagen (uCTX) and serum osteocalcin, to levels similar to those in premenopausal women. Changes in markers of bone formation were observed later than changes in resorption markers, as expected, due to the coupled nature of bone resorption and formation. Treatment with 2.5 mg daily BONIVA decreased levels of uCTX within 1 month of starting treatment and decreased levels of osteocalcin within 3 months. Bone turnover markers reached a nadir of approximately 64% below baseline values by 6 months of treatment and remained stable with continued treatment for up to 3 years. Following treatment discontinuation, there is a return to pretreatment baseline rates of elevated bone resorption associated with postmenopausal osteoporosis.
In a 1-year, study comparing once-monthly vs. once-daily oral dosing regimens, the median decrease from baseline in serum CTX values was -76% for patients treated with the 150 mg once-monthly regimen and -67% for patients treated with the 2.5 mg daily regimen. In a 1-year, prevention study comparing BONIVA 150 mg once-monthly to placebo, the median placebo-subtracted decrease in sCTX was -49.8%.
12.3 Pharmacokinetics
Absorption
The absorption of oral ibandronate occurs in the upper gastrointestinal tract. Plasma concentrations increase in a dose-linear manner up to 50 mg oral intake and increases nonlinearly above this dose.
Following oral dosing, the time to maximum observed plasma ibandronate concentrations ranged from 0.5 to 2 hours (median 1 hour) in fasted healthy postmenopausal women. The mean oral bioavailability of 2.5 mg ibandronate was about 0.6% compared to intravenous dosing. The extent of absorption is impaired by food or beverages (other than plain water). The oral bioavailability of ibandronate is reduced by about 90% when BONIVA is administered concomitantly with a standard breakfast in comparison with bioavailability observed in fasted subjects. There is no meaningful reduction in bioavailability when ibandronate is taken at least 60 minutes before a meal. However, both bioavailability and the effect on bone mineral density (BMD) are reduced when food or beverages are taken less than 60 minutes following an ibandronate dose.
Distribution
After absorption, ibandronate either rapidly binds to bone or is excreted into urine. In humans, the apparent terminal volume of distribution is at least 90 L, and the amount of dose removed from the circulation via the bone is estimated to be 40% to 50% of the circulating dose. In vitro protein binding in human serum was 99.5% to 90.9% over an ibandronate concentration range of 2 to 10 ng/mL in one study and approximately 85.7% over a concentration range of 0.5 to 10 ng/mL in another study.
Metabolism
Ibandronate does not undergo hepatic metabolism and does not inhibit the hepatic cytochrome P450 system. Ibandronate is eliminated by renal excretion. Based on a rat study, the ibandronate secretory pathway does not appear to include known acidic or basic transport systems involved in the excretion of other drugs. There is no evidence that ibandronate is metabolized in humans.
Eimination
The portion of ibandronate that is not removed from the circulation via bone absorption is eliminated unchanged by the kidney (approximately 50% to 60% of the absorbed dose). Unabsorbed ibandronate is eliminated unchanged in the feces.
The plasma elimination of ibandronate is multiphasic. Its renal clearance and distribution into bone accounts for a rapid and early decline in plasma concentrations, reaching 10% of the Cmax within 3 or 8 hours after intravenous or oral administration, respectively. This is followed by a slower clearance phase as ibandronate redistributes back into the blood from bone. The observed apparent terminal half-life for ibandronate is generally dependent on the dose studied and on assay sensitivity. The observed apparent terminal half-life for the 150 mg ibandronate tablet upon oral administration to healthy postmenopausal women ranges from 37 to 157 hours.
Total clearance of ibandronate is low, with average values in the range 84 to 160 mL/min. Renal clearance (about 60 mL/min in healthy postmenopausal females) accounts for 50% to 60% of total clearance and is related to creatinine clearance. The difference between the apparent total and renal clearances likely reflects bone uptake of the drug.
Specific Populations
Pediatrics
The pharmacokinetics of ibandronate has not been studied in patients <18 years of age.
Geriatric
Because ibandronate is not known to be metabolized, the only difference in ibandronate elimination for geriatric patients versus younger patients is expected to relate to progressive age-related changes in renal function.
Gender
The bioavailability and pharmacokinetics of ibandronate are similar in both men and women.
Race
Pharmacokinetic differences due to race have not been studied.
Renal Impairment
Renal clearance of ibandronate in patients with various degrees of renal impairment is linearly related to creatinine clearance (CLcr).
Following a single dose of 0.5 mg ibandronate by intravenous administration, patients with CLcr 40 to 70 mL/min had 55% higher exposure (AUC∞) than the exposure observed in subjects with CLcr >90 mL/min. Patients with CLcr <30 mL/min had more than a two-fold increase in exposure compared to the exposure for healthy subjects (see DOSAGE AND ADMINISTRATION [2.4]).
Hepatic Impairment
No studies have been performed to assess the pharmacokinetics of ibandronate in patients with hepatic impairment because ibandronate is not metabolized in the human liver.
Drug Interactions
Products containing calcium and other multivalent cations (such as aluminum, magnesium, iron), including milk, food, and antacids are likely to interfere with absorption of ibandronate, which is consistent with findings in animal studies.
H2 Blockers
A pharmacokinetic interaction study in healthy volunteers demonstrated that 75 mg ranitidine (25 mg injected intravenously 90 and 15 minutes before and 30 minutes after ibandronate administration) increased the oral bioavailability of 10 mg ibandronate by about 20%. This degree of increase is not considered to be clinically relevant.
13 NONCLINICAL TOXICOLOGY
Enter section text here
13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility
Carcinogenesis
In a 104-week carcinogenicity study, doses of 3, 7, or 15 mg/kg/day were administered by oral gavage to male and female Wistar rats (systemic exposures up to 12 and 7 times, respectively, human exposure at the recommended daily oral dose of 2.5 mg, and cumulative exposures up to 3.5 and 2 times, respectively, human exposure at the recommended once-monthly oral dose of 150 mg, based on AUC comparison). There were no significant drug-related tumor findings in male or female rats. In a 78-week carcinogenicity study, doses of 5, 20, or 40 mg/kg/day were administered by oral gavage to male and female NMRI mice (exposures up to 475 and 70 times, respectively, human exposure at the recommended daily oral dose of 2.5 mg and cumulative exposures up to 135 and 20 times, respectively, human exposure at the recommended once-monthly oral dose of 150 mg, based on AUC comparison). There were no significant drug-related tumor findings in male or female mice. In a 90-week carcinogenicity study, doses of 5, 20, or 80 mg/kg/day were administered in the drinking water to NMRI mice (cumulative monthly exposures in males and females up to 70 and 115 times, respectively, human exposure at the recommended dose of 150 mg, based on AUC comparison). A dose-related increased incidence of adrenal subcapsular adenoma/carcinoma was observed in female mice, which was statistically significant at 80 mg/kg/day (220 to 400 times human exposure at the recommended daily oral dose of 2.5 mg and 115 times human exposure at the recommended once-monthly oral dose of 150 mg, based on AUC comparison). The relevance of these findings to humans is unknown.
Mutagenesis
There was no evidence for a mutagenic or clastogenic potential of ibandronate in the following assays: in vitro bacterial mutagenesis assay in Salmonella typhimurium and Escherichia coli (Ames test), mammalian cell mutagenesis assay in Chinese hamster V79 cells, and chromosomal aberration test in human peripheral lymphocytes, each with and without metabolic activation. Ibandronate was not genotoxic in the in vivo mouse micronucleus tests for chromosomal damage.
Impairment of Fertility
In female rats treated from 14 days prior to mating through gestation, decreases in fertility, corpora lutea, and implantation sites were observed at an oral dose of 16 mg/kg/day (45 times human exposure at the recommended daily oral dose of 2.5 mg and 13 times human exposure at the recommended once-monthly oral dose of 150 mg, based on AUC comparison).
13.2 Animal Reproductive and Developmental Toxicology
In female rats given oral doses of 1, 4, or 16 mg/kg/day beginning 14 days before mating and continuing through lactation, maternal deaths were observed at the time of delivery in all dose groups (≥3 times human exposure at the recommended daily oral dose of 2.5 mg or ≥1 times human exposure at the recommended once-monthly oral dose of 150 mg, based on AUC comparison). Perinatal pup loss in dams given 16 mg/kg/day (45 times human exposure at the recommended daily oral dose of 2.5 mg and 13 times human exposure at the recommended once-monthly oral dose of 150 mg, based on AUC comparison) was likely related to maternal dystocia. In pregnant rats given oral doses of 6, 20, or 60 mg/kg/day during gestation, calcium supplementation (32 mg/kg/day by subcutaneous injection from gestation day 18 to parturition) did not completely prevent dystocia and periparturient mortality in any of the treated groups (≥16 times human exposure at the recommended daily oral dose of 2.5 mg and ≥4.6 times human exposure at the recommended once-monthly oral dose of 150 mg, based on AUC comparison). A low incidence of postimplantation loss was observed in rats treated from 14 days before mating throughout lactation or during gestation, only at doses causing maternal dystocia and periparturient mortality. In pregnant rats dosed orally with 1, 5, or 20 mg/kg/day from gestation day 17 through lactation day 21 (following closure of the hard palate through weaning), maternal toxicity, including dystocia and mortality, fetal perinatal and postnatal mortality, were observed at doses ≥5 mg/kg/day (equivalent to human exposure at the recommended daily oral dose of 2.5 mg and ≥4 times human exposure at the recommended once-monthly oral dose of 150 mg, based on AUC comparison). Periparturient mortality has also been observed with other bisphosphonates and appears to be a class effect related to inhibition of skeletal calcium mobilization resulting in hypocalcemia and dystocia.
Exposure of pregnant rats during the period of organogenesis resulted in an increased fetal incidence of RPU (renal pelvis ureter) syndrome at oral doses ≥10 mg/kg/day (≥30 times human exposure at the recommended daily oral dose of 2.5 mg and ≥9 times human exposure at the recommended once-monthly oral dose of 150 mg, based on AUC comparison). Impaired pup neuromuscular development (cliff avoidance test) was observed at 16 mg/kg/day when dams were dosed from 14 days before mating through lactation (45 times human exposure at the recommended daily oral dose of 2.5 mg and 13 times human exposure at the recommended once-monthly oral dose of 150 mg, based on AUC comparison).
In pregnant rabbits given oral doses of 1, 4, or 20 mg/kg/day during gestation, dose-related maternal mortality was observed in all treatment groups (≥8 times the recommended human daily oral dose of 2.5 mg and ≥4 times the recommended human once-monthly oral dose of 150 mg, based on body surface area comparison, mg/m2). The deaths occurred prior to parturition and were associated with lung edema and hemorrhage. No significant fetal anomalies were observed.
13.3 Animal Pharmacology
Animal studies have shown that ibandronate is an inhibitor of osteoclast-mediated bone resorption. In the Schenk assay in growing rats, ibandronate inhibited bone resorption and increased bone volume, based on histologic examination of the tibial metaphyses. There was no evidence of impaired mineralization at the highest dose of 5 mg/kg/day (subcutaneously), which is 1000 times the lowest antiresorptive dose of 0.005 mg/kg/day in this model, and 5000 times the optimal antiresorptive dose of 0.001 mg/kg/day in the aged ovariectomized rat. This indicates that BONIVA administered at therapeutic doses is unlikely to induce osteomalacia.
Long-term daily or once-monthly intermittent administration of ibandronate to ovariectomized rats or monkeys was associated with suppression of bone turnover and increases in bone mass. In both rats and monkeys, vertebral BMD, trabecular density, and biomechanical strength were increased dose-dependently at doses up to 15 times the recommended human daily oral dose of 2.5 mg, or cumulative monthly doses up to 8 times (rat) or 6 times (monkey) the recommended human once-monthly oral dose of 150 mg, based on body surface area (mg/m2) or AUC comparison. In monkeys, ibandronate maintained the positive correlation between bone mass and strength at the ulna and femoral neck. New bone formed in the presence of ibandronate had normal histologic structure and did not show mineralization defects.
14 CLINICAL STUDIES
Enter section text here
14.1 Treatment of Postmenopausal Osteoporosis
Daily Dosing
The effectiveness and safety of BONIVA were demonstrated in a randomized, double-blind, placebo-controlled, multinational study (Treatment Study) of 2946 women aged 55 to 80 years, who were on average 21 years postmenopause, who had lumbar spine BMD 2 to 5 SD below the premenopausal mean (T-score) in at least one vertebra [L1-L4], and who had 1 to 4 prevalent vertebral fractures. BONIVA was evaluated at oral doses of 2.5 mg daily and 20 mg intermittently. The main outcome measure was the occurrence of new radiographically diagnosed vertebral fractures after 3 years of treatment. The diagnosis of an incident vertebral fracture was based on both qualitative diagnosis by the radiologist and quantitative morphometric criterion. The morphometric criterion required the dual occurrence of 2 events: a relative height ratio or relative height reduction in a vertebral body of at least 20%, together with at least a 4 mm absolute decrease in height. All women received 400 IU vitamin D and 500 mg calcium supplementation per day.
Effect on Fracture Incidence
BONIVA 2.5 mg daily significantly reduced the incidence of new vertebral (primary efficacy measure) and of new and worsening vertebral fractures. Over the course of the 3-year study, the risk for vertebral fracture was 9.6% in the placebo-treated women and 4.7% in the women treated with BONIVA 2.5 mg (p<0.001) (see Table 3).
Table 3 Effect of BONIVA on the Incidence of Vertebral Fracture in the 3-Year Osteoporosis Treatment Study*

Proportion of Patients with Fracture (%)

Placebo
n=975
BONIVA 2.5 mg Daily
n=977
Absolute Risk Reduction
(%)
95% CI
Relative Risk Reduction (%)
95% CI
New Vertebral Fracture 9.6 4.7 4.9 52 †
0-3 Year

(2.3, 7.4) (29, 68)
New and Worsening Vertebral Fracture 10.4 5.1 5.3 52
0-3 Year

(2.6, 7.9) (30, 67)
Clinical (Symptomatic) Vertebral Fracture 5.3 2.8 2.5 49
0-3 Year

(0.6, 4.5) (14, 69)
The endpoint value is the value at the study's last time point, 3 years, for all patients who had a fracture identified at that time; otherwise, the last postbaseline value prior to the study's last time point is used. †p=0.0003 vs. placebo
BONIVA 2.5 mg daily did not reduce the incidence of nonvertebral fractures (secondary efficacy measure). There was a similar number of nonvertebral osteoporotic fractures at 3 years reported in women treated with BONIVA 2.5 mg daily [9.1%, (95% CI: 7.1%, 11.1%)] and placebo [8.2%, (95% CI: 6.3%, 10.2%)]. The two treatment groups were also similar with regard to the number of fractures reported at the individual nonvertebral sites: pelvis, femur, wrist, forearm, rib, and hip.
Bone Mineral Density (BMD)
BONIVA significantly increased BMD at the lumbar spine and hip relative to treatment with placebo. In the 3-year osteoporosis treatment study, BONIVA 2.5 mg daily produced increases in lumbar spine BMD that were progressive over 3 years of treatment and were statistically significant relative to placebo at 6 months and at all later time points. Lumbar spine BMD increased by 6.4% after 3 years of treatment with 2.5 mg daily BONIVA compared with 1.4% in the placebo group. Table 4 displays the significant increases in BMD seen at the lumbar spine, total hip, femoral neck, and trochanter compared to placebo. Thus, overall BONIVA reverses the loss of BMD, a central factor in the progression of osteoporosis.
Table 4 Mean Percent Change in BMD from Baseline to Endpoint in Patients Treated Daily with BONIVA 2.5 mg or Placebo in the 3-Year Osteoporosis Treatment Study*

Placebo BONIVA 2.5 mg Daily
Lumbar Spine 1.4
(n=693)
6.4
(n=712)
Total Hip -0.7
(n=638)
3.1
(n=654)
Femoral Neck -0.7
(n=683)
2.6
(n=699)
Trochanter 0.2
(n=683)
5.3
(n=699)
The endpoint value is the value at the study's last time point, 3 years, for all patients who had BMD measured at that time; otherwise, the last postbaseline value prior to the study's last time point is used.
Bone Histology
The effects of BONIVA 2.5 mg daily on bone histology were evaluated in iliac crest biopsies from 16 women after 22 months of treatment and 20 women after 34 months of treatment.
The histological analysis of bone biopsies showed bone of normal quality and no indication of osteomalacia or a mineralization defect.
Once-Monthly Dosing
The effectiveness and safety of BONIVA once-monthly were demonstrated in a randomized, double-blind, multinational, noninferiority trial in 1602 women aged 54 to 81 years, who were on average 18 years postmenopause, and had L2-L4 lumbar spine BMD T-score below -2.5 SD at baseline. The main outcome measure was the comparison of the percentage change from baseline in lumbar spine BMD after 1 year of treatment with once-monthly ibandronate (100 mg, 150 mg) to daily ibandronate (2.5 mg). All patients received 400 IU vitamin D and 500 mg calcium supplementation per day.
BONIVA 150 mg once-monthly (n=327) was shown to be noninferior to BONIVA 2.5 mg daily (n=318) in lumbar spine BMD in a 1-year, double-blind, multicenter study of women with postmenopausal osteoporosis. In the primary efficacy analysis (per-protocol population), the mean increases from baseline in lumbar spine BMD at 1 year were 3.86% (95% CI: 3.40%, 4.32%) in the 2.5 mg daily group and 4.85% (95% CI: 4.41%, 5.29%) in the 150 mg once-monthly group; the mean difference between 2.5 mg daily and 150 mg once-monthly was 0.99% (95% CI: 0.38%, 1.60%), which was statistically significant (p=0.002). The results of the intent-to-treat analysis were consistent with the primary efficacy analysis. The 150 mg once-monthly group also had consistently higher BMD increases at the other skeletal sites compared to the 2.5 mg daily group.
14.2 Prevention of Postmenopausal Osteoporosis
Daily Dosing
The safety and effectiveness of BONIVA 2.5 mg daily for the prevention of postmenopausal osteoporosis were demonstrated in a randomized, double-blind, placebo-controlled 2-year study (Prevention Study) of 653 postmenopausal women without osteoporosis at baseline. Women were aged 41 to 82 years, were on average 8.5 years postmenopause, and had lumbar spine BMD T-scores >-2.5. Women were stratified according to time since menopause (1 to 3 years, >3 years) and baseline lumbar spine BMD (T-score: >-1, -1 to -2.5). The study compared daily BONIVA at three dose levels (0.5 mg, 1.0 mg, 2.5 mg) with placebo. All women received 500 mg of supplemental calcium per day.
The primary efficacy measure was the change in BMD of lumbar spine after 2 years of treatment. BONIVA 2.5 mg daily resulted in a mean increase in lumbar spine BMD of 3.1% compared with placebo following 2 years of treatment. Increases in BMD were seen at 6 months and at all later time points. Irrespective of the time since menopause or the degree of pre-existing bone loss, treatment with BONIVA resulted in a higher BMD response at the lumbar spine compared with placebo across all four baseline strata [time since menopause (1 to 3 years, >3 years) and baseline lumbar spine BMD (T-score: >-1, -1 to -2.5)].
Compared with placebo, treatment with BONIVA 2.5 mg daily increased BMD of the total hip by 1.8%, the femoral neck by 2.0%, and the trochanter by 2.1%.
Once-Monthly Dosing
BONIVA 150 mg once-monthly prevented bone loss in a majority (88.2%) of women in a randomized, double-blind, placebo-controlled 1-year study (Monthly Prevention Study) of 160 postmenopausal women with low bone mass at baseline (T-score of -1 to -2.5). Women, aged 46 to 60 years, were on average 5.4 years postmenopause. All women received 400 IU of vitamin D and 500 mg calcium supplementation daily.
The primary efficacy measure was the relative change in BMD at the lumbar spine after 1 year of treatment. BONIVA 150 mg once-monthly resulted in a mean increase in lumbar spine BMD of 4.12% (95% confidence interval 2.96 – 5.28) compared with placebo following 1 year of treatment (p<0.0001), based on a 3.73% and -0.39% mean change in BMD from baseline in the 150 mg once-monthly BONIVA and placebo treatment groups, respectively. BMD at other skeletal sites was also increased relative to baseline values.
https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=d6d7711f-541b-47d1-b937-2c6a021eb6c3#footnote-reference-4

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