Fosteum

Manufacturer
Primus Pharmaceuticals, Inc. | Capstone Nutrition, LLC
Effective date
2025-02-19
Label type
MEDICAL FOOD
Version
2
Source
full-release
Hydrated at
2026-06-01 02:51:29

Label at a glance#

ProductFosteum
Active ingredientGENISTEIN, ZINC GLYCINATE CITRATE, CHOLECALCIFEROL
Label structure17 sections

Indications and uses

FOSTEUM is indicated for the clinical dietary management of the metabolic processes of osteopenia and osteoporosis. FOSTEUM should be taken with sufficient calcium and vitamin D 3 as directed by a physician. In clinical trials of the genistein in FOSTEUM, patients also received 1,000 mg of calcium carbonate and 800 IU vitamin D 3 per day in two divided doses. See Dosage and Administration for additional informatio...

Dosage and administration

FOSTEUM should be taken twice a day, approximately 12 hours apart, and may be taken with or without food. FOSTEUM has no food limitations. There are no postural limitations. Patients taking FOSTEUM should ensure adequate calcium and vitamin D intake, as directed by a physician.

Label contents#

Full prescribing information#

SPL UNCLASSIFIED SECTION

FOSTEUM® is a specially formulated prescription medical food product for the clinical dietary management of the metabolic processes of osteopenia and osteoporosis. FOSTEUM must be administered under physician supervision.

DESCRIPTION

DESCRIPTION SECTION

FOSTEUM consists of a specially formulated proprietary blend of high purity genistein aglycone from a natural source, citrated zinc bisglycinate and cholecalciferol (vitamin D3). Genistein aglycone reduces osteoclast activity and stimulates osteoblast activity. Citrated zinc bisglycinate works synergistically with genistein aglycone, while both citrated zinc bisglycinate and vitamin D3 also work independently to promote mineralization activity in bone. Vitamin D3 also facilitates calcium absorption from the intestine.

Genistein aglycone

SPL UNCLASSIFIED SECTION

Each FOSTEUM capsule contains 27 mg of genistein aglycone (genistein), derived from a natural source, for a total daily intake of 54 mg. In clinical trials, this level of intake has been shown to increase bone mineral density (BMD). Genistein is chemically described as 4',5,7-trihydroxyisoflavone or 5,7-dihydroxy-3-(4-hydroxyphenyl)-4H-1-benzopyran-4-one. It is the aglycone form of the glucoside isoflavone molecule genistin. The empirical formula of genistein is C15H10O5; its molecular weight is 270.2. The structural formula is:

Genistein aglycone moleculeGenistein aglycone molecule

Citrated zinc bisglycinate

SPL UNCLASSIFIED SECTION

Each FOSTEUM capsule contains 20 mg citrated zinc bisglycinate, a glycine amino acid chelate of zinc formed in the presence of citric acid that provides approximately 4 mg of elemental zinc per capsule. Zinc is an essential mineral co-factor required by enzymes involved in bone metabolism and has important physiological functions in other tissues throughout the body. Elemental zinc has also been shown to have synergistic effects with genistein on bone formation. This zinc bisglycinate, formed in the presence of citric acid, has been shown to have improved absorption over inorganic zinc salts, such as zinc sulfate. Zinc bisglycinate, a chelate of zinc, is complex with an empirical formula of C4H8O4Zn; its molecular weight is 215.5. Its structural formula is:

Citrated zinc bisglycinate moleculeCitrated zinc bisglycinate molecule

When generated in the presence of citric acid, citrate and additional glycinate ions (not shown) also participate in this structure, forming citrated zinc bisglycinate, contributing to the complexity of the molecule.

Cholecalciferol

SPL UNCLASSIFIED SECTION

Each FOSTEUM capsule contains cholecalciferol equivalent to 200 IU vitamin D3. Vitamin D3 is the natural form of vitamin D3 produced when skin is exposed to the sun. Vitamin D is necessary for proper absorption of calcium from the intestine and the use of absorbed calcium in the mineralization of bone. Cholecalciferol is the natural precursor of calcitriol (1,25-dihydroxy-cholecalciferol), the physiologically active form of vitamin D3. It is described as (3ßμ,5Z,7E)-9,10-secocholesta-5,7,10(19)-triene-3-ol. The empirical formula is C27H44O; its molecular weight is 384.6. The structural formula is:

CholecalciferolCholecalciferol

Other Ingredients

SPL UNCLASSIFIED SECTION

FOSTEUM contains the following other ingredients as excipients: dicalcium malate, magnesium oxide, micro-crystalline cellulose, magnesium stearate and silicon dioxide in a capsule made from plant sources. FD&C Blue #2 is used for the imprint on the capsule. FOSTEUM does not contain fructose, glucose, sucrose, lactose, gluten, maltodextrin, tree nuts, peanuts, soy, flavors or products of animal or seafood origin. FOSTEUM is suitable for vegans.

Medical Food

SPL UNCLASSIFIED SECTION

Medical Food products are used under a physician's supervision for the dietary management of diseases in patients with particular medical or metabolic needs due to their disease or condition. The U.S. Congress defined "medical food" in the Orphan Drug Act and Amendments of 1988 as "a food which is formulated to be consumed or administered enterally under the supervision of a physician, and which is intended for the specific dietary management of a disease or condition for which distinctive nutritional requirements, based on recognized scientific principles, are established by medical evaluation." FOSTEUM has been developed, manufactured and labeled in accordance with both the statutory and the FDA regulatory definition of a medical food. FOSTEUM is to be used only under a physician's supervision.

Generally Recognized As Safe

SPL UNCLASSIFIED SECTION

The ingredients in FOSTEUM are Generally Recognized As Safe (GRAS). This is the statutory safety standard that the U.S. Food and Drug Administration (FDA) requires of all ingredients added to food products. The standard for an ingredient to achieve GRAS status requires technical demonstration of non-toxicity and safety, general recognition of safety through widespread usage and agreement of that safety by experts in the field.

LOW BONE MASS AND OSTEOPOROSIS

SPL UNCLASSIFIED SECTION

Low bone mass (osteopenia) and osteoporosis are gradations of bone loss. Low bone mass may progress to osteoporosis. Low bone mass and osteoporosis occur when the metabolic processes of normal bone turnover is unbalanced in favor of resorption activity. The World Health Organization (WHO) defines low bone mass as a T-score (by dual energy absorption technology, DXA) between -1.0 and -2.5. Osteoporosis is defined at a T-score lower than -2.5.

CLINICAL PHARMACOLOGY

CLINICAL PHARMACOLOGY SECTION

Mechanism of Action

SPL UNCLASSIFIED SECTION

FOSTEUM acts by restoring and maintaining the balance of bone turnover toward normal levels in osteopenia and osteoporosis. Preclinical and clinical data suggest that the genistein in FOSTEUM both reduces osteoclast-mediated bone resorption and stimulates the bone forming activity of osteoblasts. The zinc in FOSTEUM acts synergistically with the genistein, and the cholecalciferol improves the absorption of calcium and its deposition into the mineral matrix of bone.

Osteopenia and osteoporosis generally occur because of hormonal changes associated with the aging process or the use of certain classes of drugs. Bone loss associated with these conditions is primarily due to the metabolic imbalance that occurs when osteoclast activity is greater than osteoblast activity. The imbalance of bone resorption in excess of bone formation is progressive and often leads to fractures. These minimal trauma fractures may lead to significant morbidity and mortality. Successful dietary management of the metabolic processes underlying osteopenia and osteoporosis helps to restore the balance between bone resorption and bone formation and consequently increases bone density over time.

Genistein aglycone

SPL UNCLASSIFIED SECTION

The genistein in FOSTEUM reduces the activity of osteoclasts and promotes the formation of osteoblasts from progenitor stem cells to increase their number and activity in bone. The net effect is an enhancement of bone formation which restores bone remodeling toward normal levels and results in an increase in bone mineral density (BMD) over time. Through these clinical dietary modifications, FOSTEUM manages the metabolic processes of osteopenia and osteoporosis.

More specifically, preclinical studies suggest the following mechanisms of action: Genistein acts to reverse the effects of estrogen loss by decreasing cytokine production and increasing transforming growth factor ß (TGFß) levels. The net effect is a decrease in receptor activator of nuclear factor kappa B ligand (RANK-L) production, an increase in osteoprotegerin (OPG) levels, and interruption of the interaction between RANK and RANK-L which as a consequence, decreases overall osteoclast activity. Genistein also increases insulin-like growth factor-1 (IGF-1) leading to an increased number of proto-osteoblasts developed from mesenchymal stem cells. Genistein restores endothelial cell signals resulting in increased recruitment of these precursor cells to form osteoblasts. Genistein also reverses early apoptosis of osteoblasts. These actions likely produce a net increase in osteoblast activity and concomitant decrease in osteoclast activity.

In clinical trials, the genistein in FOSTEUM decreased urinary levels of the bone resorption markers urinary and serum collagen type 1 cross-linked C-telopeptide (CTX), deoxypyridinoline (DPYR) and pyridinoline (PYR), and increased serum levels of the bone formation markers bone-specific alkaline phosphatase (BAP), osteocalcin (OC), and IGF-1 and increased BMD over time.

Zinc (Elemental)

SPL UNCLASSIFIED SECTION

Studies have shown that zinc has a positive effect on bone formation. The zinc in FOSTEUM is the citrated bisglycinate form, which has been shown to have improved absorption from the intestine compared to inorganic zinc salts.

Cell cultures of rat femoral-metaphyseal tissue treated with zinc and genistein produced a greater increase in BAP, DNA and bone calcium content compared with either agent alone. Other studies have demonstrated that genistein and zinc produce synergistic effects on osteoclast apoptosis and bone mineralization. Animal studies support these findings by showing that the combination of zinc and genistein increases mineralization in bone over genistein alone. In both men and women, zinc was shown to potentiate the effect of high genistein-containing fermented food on bone markers by further increasing the levels of BAP and OC. Based on these data, genistein and zinc increase osteoblast activity while decreasing osteoclast activity to a greater extent than either genistein or zinc alone.

Cholecalciferol

SPL UNCLASSIFIED SECTION

The physiologically active form of vitamin D, calcitriol, regulates calcium and phosphate absorption and modulates serum calcium, renal calcium and phosphate excretion, bone formation and bone resorption. Vitamin D deficiency is associated with a negative calcium balance, increased parathyroid hormone levels, bone loss and increased risk of skeletal fracture. Severe deficiency results in hyperparathyroidism, hypophosphatemia, bone loss, proximal muscle weakness and osteomalacia.

METABOLISM

SPL UNCLASSIFIED SECTION

Genistein

SPL UNCLASSIFIED SECTION

The genistein in FOSTEUM is freely absorbed in the gut where it is at least partly converted to one metabolite, 7-O-beta-glucuronide, before it crosses the mucosa from the intestinal lumen. In hepatic first pass metabolism, genistein is converted via a two-stage process involving initial CYP450-mediated hydroxylation, followed by glucuronidation and sulfonation to the principal conjugated circulating metabolites. Genistein metabolites are converted back into the aglycone form in a variety of tissues. The aglycone is believed to be the principal active form, but conjugates have shown some activity in estrogen-receptor binding assays. Genistein and its conjugates are excreted via urine and bile.

Citrated zinc bisglycinate

SPL UNCLASSIFIED SECTION

Citrated zinc bisglycinate consists of zinc chelated by glycine in the presence of citric acid. Once absorbed, the zinc is released from the chelate. Subsequently, glycine is utilized in normal protein metabolism and zinc is bound to albumin as well as blood cells and distributed throughout the body. The citrate is absorbed and utilized in the tricarboxylic acid cycle (Krebs cycle). The majority of zinc in the human body is found in muscle and bone. Excretion occurs predominantly via the feces.

Cholecalciferol

SPL UNCLASSIFIED SECTION

Ultraviolet light acts on 7-dehydrocholesterol (provitamin D3) in skin, where it is converted to 9,10-secosterol (previtamin D3). Previtamin D3 is converted into 25-hydroxycholecalciferol in the liver by the P450 enzyme CYP27. This molecule is further converted in the kidney by the P450 enzyme CYP27B1 to the active hormone 1,25-dihydroxycholecalciferol (calcitriol).

CLINICAL EXPERIENCE

SPL UNCLASSIFIED SECTION

Hepatic and Renal Effects

SPL UNCLASSIFIED SECTION

In clinical studies, the effects of genistein in FOSTEUM on blood chemical, hepatic and renal functional measures were compared in post-menopausal subjects receiving genistein plus calcium carbonate (calcium) and vitamin D3 with post-menopausal, age-matched subjects receiving only calcium and vitamin D3. No change in laboratory values were noted over a three year period in either group and all measures remained within normal limits.

Since the precursor form of vitamin D3 is transformed to the active form in the liver and then kidney, it is expected that patients with severe liver or kidney impairment may not transform the vitamin adequately.

Effects on Reproductive Tissues

SPL UNCLASSIFIED SECTION

Effects of the genistein in FOSTEUM on breast density, vaginal cytology and endometrial thickness were tested in double-blind, placebo-controlled clinical trials. One trial with 30 post-menopausal subjects in each arm found that genistein did not affect endometrial thickness over a one year period compared to placebo. In other controlled trials, daily administration of 54 mg of genistein over one, two and three year periods produced no increases in endometrial thickness or breast density in post-menopausal women. Furthermore, a subset of 119 post-menopausal women showed no change in vaginal cytology following two years of daily genistein therapy. These data suggest that the genistein in FOSTEUM does not produce adverse estrogenic effects in reproductive tissues.

Cardiovascular Safety

SPL UNCLASSIFIED SECTION

In a study of 60 post-menopausal subjects comparing the cardiovascular markers of those receiving thegenistein in FOSTEUM to a matched group receiving placebo, homocysteine and C-reactive protein (CRP)were assessed at baseline and again at 6 months. No statistically significant differences were seenbetween groups. Soluble intercellular adhesion molecule-1 (ICAM), vascular cell adhesion molecule-1(VCAM), fibrinogen and F2-isoprostane levels were assessed at baseline and again at 12 and 24 months in389 post-menopausal subjects randomized to receive either genistein, calcium and vitamin D3 or calciumand vitamin D3 only (placebo). At both 12 and 24 months, the levels of all four cardiovascular markers werereduced in the genistein group compared to both baseline and placebo at all time points. No significantchanges in lipid profile were observed in either the genistein or placebo group over the course of the study.These data indicate that genistein does not adversely affect markers of cardiovascular risk. An additionalstudy of 53 post-menopausal women measured changes in flow-mediated vasodilation and plasma nitricoxide status. The genistein in FOSTEUM significantly increased plasma nitrite/nitrate levels and reducedlevels of endothelin-1 compared to placebo. After 12 months of use, forearm blood flow increasedsignificantly during reactive hyperemia in the genistein group compared to placebo. Flow-mediated dilationin the proximal and distal brachial arteries both increased significantly after genistein administration. Thepurified genistein in FOSTEUM improved endothelial function in a cohort of post-menopausal women.

Menopausal Symptoms

SPL UNCLASSIFIED SECTION

In three published studies with a combined enrollment of more than 300 post-menopausal women, the genistein in FOSTEUM progressively reduced the number of symptomatic vasomotor episodes by an average of more than 50% at the 24 month follow-up. In these studies, vasomotor symptoms were unchanged in the placebo groups.

Blood Glucose and Insulin Resistance

SPL UNCLASSIFIED SECTION

The genistein in FOSTEUM was also found to significantly reduce fasting glucose and insulin levels, as well as insulin resistance, in 198 post-menopausal women over a 2 year period and in a subset of 71 patients over a 3 year period when compared to placebo.

DRUG INTERACTIONS

DRUG INTERACTIONS SECTION

Genistein

SPL UNCLASSIFIED SECTION

The genistein in FOSTEUM was tested in in vitro pooled human liver microsome assays for CYP1A2, 2A6, 2C8, 2C9, 2D6, and 3A4. Inhibition of the 1A2, 2A6, 2D6 and 3A4 isozymes was low, however, inhibition of CYP450 2C8 and 2C9 was observed with IC50s of 2.5 and 2.8 μM, respectively. Results from a steady-state pharmacokinetic study in post-menopausal women showed that the level of circulating genistein was in the low nanomolar range and undetectable at most time points in many subjects. These data suggest that circulating genistein does not reach concentration required to produce any clinically significant interactions with co-administered drugs. The effects of the principal circulating metabolites of genistein on CYP450-mediated metabolism are currently unknown.

Cholecalciferol

SPL UNCLASSIFIED SECTION

Cimetidine, thiazides and anticonvulsants may increase catabolism of vitamin D3. Cholestyramine and other bile acid sequestrants, as well as mineral oil, orlistat and olestra may impede absorption of vitamin D3 from the intestine.

TOXICITY

NONCLINICAL TOXICOLOGY SECTION

Genistein

SPL UNCLASSIFIED SECTION

Genistein showed no toxicity in rats following acute dosing up to 2000 mg/kg. Long-term toxicity studies up to 52 weeks duration using oral administration of 0-500 mg/kg/day in rats and dogs showed minimal adverse effects. Changes were primarily observed at the 500 mg/kg/day dose. From these studies, the no observed adverse effect level for genistein in rats was determined to be 50 mg/kg/day and in dogs >500 mg/kg/day. These intake levels are at least 50-fold greater than the recommended dose of the genistein in FOSTEUM on a mg/kg basis.

Zinc (Elemental)

SPL UNCLASSIFIED SECTION

The National Academy of Sciences (NAS) upper acceptable limit for self-administration is 40 mg/day of elemental zinc, the equivalent of ten FOSTEUM capsules per day. Zinc is considered acutely toxic at 200 mg elemental zinc per day, the equivalent of 50 FOSTEUM capsules per day.

Cholecalciferol

SPL UNCLASSIFIED SECTION

Cholecalciferol may produce toxicity with long term, high-dose consumption. While medical doses of vitamin D3 up to 10,000 IU per day are sometimes administered under physician supervision, the upper acceptable limit for self-administration is 2,000 IU per day per the Daily Reference Intakes of the Institute of Medicine published by the NAS in 2004. Signs and symptoms of vitamin D toxicity include hypercalcemia, hypercalciuria, anorexia, nausea, vomiting, polyuria, polydipsia, weakness and lethargy. Serum and urine calcium levels should be monitored in patients with suspected vitamin D toxicity. Standard therapy includes restriction of dietary calcium, hydration and systemic glucocorticoids in patients with severe hypercalcemia.

SPECIAL POPULATIONS

USE IN SPECIFIC POPULATIONS SECTION

Pregnant or Nursing Women

PREGNANCY SECTION

FOSTEUM has not been tested in pregnant or nursing women.

Males

SPL UNCLASSIFIED SECTION

FOSTEUM has not been studied for its effect on bone in human males. No specific studies on genistein aglycone and feminization in human males exist.

Pediatrics

PEDIATRIC USE SECTION

FOSTEUM has not been tested in pediatric patients.

INDICATIONS AND USAGE

INDICATIONS & USAGE SECTION

Indications

SPL UNCLASSIFIED SECTION

FOSTEUM is indicated for the clinical dietary management of the metabolic processes of osteopenia and osteoporosis.

Usage

SPL UNCLASSIFIED SECTION

FOSTEUM should be taken with sufficient calcium and vitamin D3 as directed by a physician. In clinical trials of the genistein in FOSTEUM, patients also received 1,000 mg of calcium carbonate and 800 IU vitamin D3 per day in two divided doses. See Dosage and Administration for additional information.

Interactions with Food

SPL UNCLASSIFIED SECTION

FOSTEUM can be taken with or without other foods. FOSTEUM may be taken with any beverage desired.

PRECAUTIONS AND CONTRAINDICATIONS

CONTRAINDICATIONS SECTION

General

SPL UNCLASSIFIED SECTION

Causes of osteopenia or osteoporosis other than menopause or aging should be considered.

Hypersensitivity

SPL UNCLASSIFIED SECTION

FOSTEUM is contraindicated for anyone having a hypersensitivity to any ingredient in the product. See "Other ingredients" for a full list of ingredients.

Patients with Cancer

SPL UNCLASSIFIED SECTION

FOSTEUM has not been specifically studied in patients with a history of cancer of the breast or reproductiveorgans. Major studies on isoflavone intake have been published including one epidemiological studyinvolving 18,312 postmenopausal women who were followed for an average of 9.2 years. Based on thesefindings, FOSTEUM may be suitable for the management of osteopenia and osteoporosis in thesepopulations. The decision to use FOSTEUM in these clinical situations should be made in consultation withthe patient’s physician.

Vitamin D Deficiency

SPL UNCLASSIFIED SECTION

FOSTEUM is not intended to treat vitamin D deficiency, generally characterized in the literature by serum levels of 25-hydroxycholecalciferol below 9 ng/mL. FOSTEUM contains 400 IU cholecalciferol in two recommended capsules per day, but the NAS recommended daily dose in patients over the age of 70 is 600 IU/day. FOSTEUM should be taken with a calcium/vitamin D3 supplement sufficient to meet the daily requirement or as recommended by a physician. Patients with gastrointestinal malabsorption or those on certain drugs (see Drug Interactions, Cholecalciferol) may require higher doses of vitamin D3 and measurement of serum levels of 25-hydroxycholecalciferol may be indicated in this population.

Pregnancy

SPL UNCLASSIFIED SECTION

Animal studies suggest that genistein may produce developmental abnormalities of the male and female genital tracts if consumed during early stages of pregnancy. Effects in infants of nursing mothers are uncertain. Therefore, FOSTEUM is contraindicated in pregnant and lactating women. Women capable of becoming pregnant should use appropriate contraception when taking FOSTEUM. The genistein in FOSTEUM has not been tested in women capable of becoming pregnant.

ADVERSE EVENTS

ADVERSE REACTIONS SECTION

In a three-year clinical trial, 389 subjects were randomized to either genistein plus calcium and vitamin D3 n=198, or calcium and vitamin D3 alone n=191. A total of 52 subjects in both groups discontinued due to adverse events. Study discontinuation in these subjects was due to gastrointestinal symptoms, including abdominal and epigastric pain, dyspepsia, vomiting and constipation. Discontinuation was reported in both groups. The incidence of adverse events was statistically higher in the genistein group over both years of the study. The major adverse events are shown in the table below without attribution of causality.

 Adverse Events  Year 1  Year 2  Year 3

 Genistein+Ca/D3

(n=178)

 Ca/D3

(n=172)

 Genistein+Ca/D3

(n=150)

 Ca/D3

(n=154)

 Genistein+Ca/D3

(n=71)

 Ca/D3

(n=67)

 Abdominal Pain 4 (2.2%) 2 (1.1%) 2 (1.3%) 1 (0.6%) 1(1.4%) 1(1.5%)
 Dyspepsia 2 (1.1%) 1 (0.6%) 7 (4.7%) 2 (1.3%) 2(2.8%) 1(1.5%)
 Constipation 5 (2.8%) 3 (1.7%) 8 (5.3%) 3 (1.9%) 2(2.8%) 1(1.5%)

Some of these adverse event occurrences may be attributable to the intake of 1,000 mg per day of calcium carbonate by subjects in both groups. Taking FOSTEUM with food may reduce or eliminate some gastrointestinal symptoms.

PHARMACOKINETICS

PHARMACOKINETICS SECTION

Genistein

SPL UNCLASSIFIED SECTION

To determine the disposition of the genistein in FOSTEUM, a steady-state pharmacokinetic (PK) study was conducted in post-menopausal women aged 50-66. Ten subjects took FOSTEUM without food (fasted group) and 10 subjects took FOSTEUM with food (fed group) twice daily for seven (7) days. On the eighth day, blood was collected at 1, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48 and 96 hours after ingesting FOSTEUM with (fed group) or without (fasted group) food. Concentrations of serum aglycone (protein bound and unbound) and total genistein (aglycone plus circulating conjugated forms) were determined at each time point for standard pharmacokinetic analyses.

Levels of free genistein aglycone were in the low nanomolar range and below the level of quantification in several subjects. Therefore, meaningful pharmacokinetic parameters could not be calculated from the data. Consistent with previous studies, the majority of circulating genistein existed in the conjugated form. Pharmacokinetic analyses for total genistein reported in the table below revealed no significant difference in any parameter between the fed and fasted groups, suggesting that FOSTEUM may be taken with or without food. The serum half-life (t1/2) among all subjects was 9.6 hours. Based on this profile, BID is recommended.

 Prandial State N Total Genistein Mean ±SD
 Fasting 10

Cmax (ng/mL)

Tmax (hours)

T1/2 (hours)

AUC

837.5 ± 414.8

2.0 ± 1.2

8.1 ± 4.9

9622.8 ± 5843.0

 Fed 9

Cmax (ng/mL)

Tmax (hours)

T1/2 (hours)

AUC

 671.1 ± 297.1

3.3 ± 1.5

11.2 ± 3.6

11045.2 ± 6208.6

CLINICAL STUDIES

CLINICAL STUDIES SECTION

Dietary Management of Osteopenia and Osteoporosis

SPL UNCLASSIFIED SECTION

Effect on Bone Mineral Density

Efficacy of the genistein in FOSTEUM was demonstrated in a multi-center, double-blind, placebo-controlled clinical study of 389 randomized post-menopausal patients with osteopenia or osteoporosis (genistein n=198; placebo n=191). All subjects received calcium (1,000 mg/day) and vitamin D3 (800 IU/day) in two divided doses.

 Mean Percent Change in BMD over 24 Months
SITE  12 months vs. baseline  24 months vs. baseline 
 Genistein
+Ca/D3
(n=178)
 Ca/D3
(n=172)
 Genistein
+Ca/D3
(n=150)
 Ca/D3
(n=154)
 Femoral Neck 2.4% -2.2% 5.1% -5.3%
 Lumbar Spine 2.9% -3.6% 5.8% -6.3%

After two years, significant increases were seen in BMD at both lumbar spine and femoral neck relative to both baseline and placebo in patients who received genistein. In a third year extension, 138 patients continued on blinded study product. Patients taking the genistein in FOSTEUM showed a continued increase in BMD at both lumbar spine and femoral neck. In this cohort, 85% of the patients in the genistein arm showed increased BMD.

Mean Percent Change in BMD over 24 and 36 Months (Extended Study Group) 
 SITE 24 months vs. baseline 36 months vs. baseline
 Genistein
+Ca/D3
(n=71)
 Ca/D3
(n=67)
 Genistein
+Ca/D3
(n=71)
 Ca/D3
(n=67)
 Femoral Neck 5.2% -5.4% 7.0% -7.5%
 Lumbar Spine 7.3% -6.3% 10.3% -10.6%

Bone markers were measured and found to support the proposed mechanism of action as levels of formation markers were increased and levels of resorption markers were reduced in the genistein group compared with baseline as shown in the table below.

 Mean Percent Change in Bone Markers at 12, 24 and 36 Months vs. Baseline
 12 months vs. baseline  24 months vs. baseline  36 months vs. baseline 
 Genistein
+ Ca/D3
(N=178)
 Ca/D3
(N=172)
 Genistein
+ Ca/D3
(N=150)
 Ca/D3
(N=154)
 Genistein
+ Ca/D3
(N=71)
 Ca/D3
(N=67)
 BAP +32.7% -0.8% +38.5% -1.1% +45.3% -1.2%
 IGF-1 +18.0% -2.3% +13.0% +1.6% +16.7% -3.0%
 PYR -14.5% -3.3% -13.5% -1.0% -15.8% -2.8%
 DPYR -12.4% -1.2% -10.2% -0.9% -14.1% -3.0%
 CTX-24.9%+2.3%-35.5%+2.9%-43.7%+6.2%

Genistein's efficacy was also shown in a one year trial of 90 osteopenic or osteoporotic, post-menopausal subjects vs. placebo and vs. HRT. Baseline values were matched for all parameters. The BMD values at 12 months are shown in the table below:

Mean Percent Change in BMD at 12 Months vs. Baseline 
 SITE GENISTEIN
(n=30)
 HRT
(n=30)
 PLACEBO
(n=30)
 Femoral Neck 3.6% 2.4% -0.7%
 Ward’s Triangle 4.0% 3.0% -0.4%
 Lumbar Spine 3.0% 3.8% -1.6%

Fracture Data

SPL UNCLASSIFIED SECTION

The studies that have been performed on the genistein in FOSTEUM to date have not been intended to assess new incident fractures. These studies have shown reduced markers of bone resorption, increased markers of bone formation and increased BMD in clinical trials. Anecdotally, in the 389 patient clinical trial comparing genistein to placebo over a three-year period, there were three fractures of the sacrum in the placebo (Calcium and Vitamin D3) group. No fractures were observed in the genistein group over three years. Studies in animals have demonstrated an increase in bone quality including an increase in bone breaking strength and improvement in architecture in histological examination.

Concomitant Use

SPL UNCLASSIFIED SECTION

No studies have been performed assessing the efficacy or safety of concomitant use of FOSTEUM with HRT, bisphosphonates, SERMs or bone anabolic agents. Since HRT, SERMs and FOSTEUM may share certain receptor targets, concomitant use of these products is not recommended.

OVER USAGE

OVERDOSAGE SECTION

Genistein

SPL UNCLASSIFIED SECTION

There are no known cases of over usage of the genistein in FOSTEUM. Animal studies have shown that consuming the equivalent of 75 FOSTEUM capsules at one time did not produce adverse events. However, as in most over usage situations, symptoms following an over usage of FOSTEUM could vary according to the patient. If an over usage were to occur, patients should be managed by systematic and supportive care as soon as possible following product consumption.

Zinc (Elemental)

SPL UNCLASSIFIED SECTION

Symptoms of acute zinc toxicity occur after ingestion of 2 g or more of elemental zinc, the equivalent of 500 FOSTEUM capsules at one time. Chronic zinc toxicity, resulting from induced copper deficiency, is increasingly common as the use of large doses of zinc in supplements becomes more routine. Those on long term supplementation or high doses of zinc-containing cold medication, such as zinc lozenges, should be monitored for zinc and copper status. Zinc is considered acutely toxic at 200 mg elemental zinc per day, the equivalent of 50 FOSTEUM capsules per day.

Cholecalciferol

SPL UNCLASSIFIED SECTION

There is limited information regarding acute vitamin D3 toxicity in humans. Single doses of ergocalciferol (vitamin D2) up to 600,000 IU have been given without noted toxicity. In patients suffering from diseases, such as leukemia, lymphoma or sarcoidosis, that are associated with unregulated overproduction of calcitriol, supplemental vitamin D3 may worsen hypercalcemia and/or hypercalciuria. Regular monitoring of
urine and serum calcium may be indicated in this population.

Symptoms of vitamin D toxicity include hypercalcemia, hypercalciuria, anorexia, nausea, vomiting, polyuria, polydipsia, weakness and lethargy. Serum and urine calcium levels should be monitored in patients with suspected vitamin D toxicity. Standard therapy includes restriction of dietary calcium, hydration and systemic glucocorticoids in patients with severe hypercalcemia.

DOSAGE AND ADMINISTRATION

DOSAGE & ADMINISTRATION SECTION

FOSTEUM should be taken twice a day, approximately 12 hours apart, and may be taken with or without food. FOSTEUM has no food limitations. There are no postural limitations. Patients taking FOSTEUM should ensure adequate calcium and vitamin D intake, as directed by a physician.

HOW SUPPLIED

HOW SUPPLIED SECTION

FOSTEUM is an off-white capsule with "FOSTEUM" and "52003" printed in blue on the cap and body respectively. They are supplied as follows:

68040-603-16  unit-of-use bottle of 60 capsules with desiccant (30-day supply)

68040-603-08  carton of 1 5-day sample blister pack (10 capsules total)

Storage

SPL UNCLASSIFIED SECTION

Store at room temperature 59° – 86°F (15° – 30°C). Protect from light and moisture. Store capsules in original bottle until usage. Keep out of reach of children.

SPL UNCLASSIFIED SECTION

Manufactured for:
Primus Pharmaceuticals, Inc.
Scottsdale, AZ 85253
www.primusrx.com

LogoLogo

U.S. Patent Nos. 5,935,996, 7,582,418*, 7,838,042*, and 8,338,393. Patents pending.
*Used under license from Albion Laboratories, Inc., Clearfield, UT.

©2020 Primus Pharmaceuticals, Inc. All rights reserved. 13008-1020

PRINCIPAL DISPLAY PANEL

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL

68040-603-16

Dispensed by Prescription

Fosteum®Capsules

genistein aglycone (27 mg)
citrated zinc bisglycinate (20 mg)
cholecalciferol (200 IU)

MEDICAL FOOD PRODUCT

For the Clinical Dietary
Management of the Metabolic Processes
of Osteopenia and Osteoporosis

CONTENTS: 60 CAPSULES

LabelLabel

DailyMed Pharmacologic Classes#

Class, Version, Type table
ClassVersionTypeEffective
CHOLECALCIFEROL Pharmacologic Class Indexing2Indexing - Pharmacologic Class20180813
ZINC CATION Pharmacologic Class Indexing2Indexing - Pharmacologic Class20180813

DailyMed Product Concepts#

Product concept, Relation, Version table
Product conceptRelationVersionEffective
f47a510b-6679-4664-b2d6-47b5c4afe7ccProduct name420260217
030ce964-9b2d-45aa-b5d3-f78ce03ef61cProduct name220250515
e2db08c6-133f-4f4f-afb4-e90a2418d6f6Product name120230320
0306390c-dd77-4363-afe0-63c58088b2a1Product name120220120
503ea967-4b9c-48cf-9e87-c7975295849dProduct name220220120
11ed6f83-cdd2-4637-8379-b1a1d3ae3cdeProduct name120181101
86c45a79-b9f0-4476-a27c-6e10db098497Product name120180125
190f2a5b-bbc8-65c7-fcb0-97891307b917Product name120140508
60c52429-fcef-eb54-2387-43bc9e4f296bProduct name120140508

DailyMed Package Descriptions#

Package NDC, Product, Description table
Package NDCProductDescriptionFormQuantityStrengthSPL version
68040-603-16Fosteum60 in 1 BOTTLECAPSULE602

DailyMed Dashboard NDC Coverage#

NDC, Dashboard title, SPL version table
NDCDashboard titleSPL versionValidationDashboard ZIP
68040-603FOSTEUM (GENISTEIN, ZINC GLYCINATE CITRATE, AND CHOLECALCIFEROL) CAPSULE [PRIMUS PHARMACEUTICALS, INC.]21 package rows20250302_899ea7ce-0996-4635-9545-1e07091cf400.zip

DailyMed Billing Units#

Package NDC, Billing unit, Product NDC table
Package NDCBilling unitProduct NDCDailyMed indexing SPLSPL versionEffective
68040-603-16EA - Each68040-603dd5c850d-8f1a-47b6-a1bb-a9bfc11178d412013-02-19

DailyMed Socrata Ingredients#

Ingredient, Type, UNII table
IngredientTypeUNIISPL versionUploaded
CHOLECALCIFEROLACTIVE INGREDIENT1C6V77QF411
GENISTEINACTIVE INGREDIENTDH2M523P0H1
ZINC GLYCINATE CITRATEACTIVE INGREDIENTH3472PJ7YA1
CHOLECALCIFEROLACTIVE MOIETY1C6V77QF411
GENISTEINACTIVE MOIETYDH2M523P0H1
ZINC CATIONACTIVE MOIETY13S1S8SF371
CELLULOSE, MICROCRYSTALLINEINACTIVE INGREDIENTOP1R32D61U1
FD&C BLUE NO. 2INACTIVE INGREDIENTL06K8R7DQK1
MAGNESIUM OXIDEINACTIVE INGREDIENT3A3U0GI71G1
MAGNESIUM STEARATEINACTIVE INGREDIENT70097M6I301
SILICON DIOXIDEINACTIVE INGREDIENTETJ7Z6XBU41

Products#

Every source-derived product name is available through these pages.

DailyMed product names page 1 of 1 · 12 matching rows.

NDC Codes#

Product NDC, Package NDC table
Product NDCPackage NDC
68040-60368040-603-16

Ingredients#

Every source-derived ingredient row is available through these pages.

DailyMed ingredient rows page 1 of 1 · 9 matching rows.

Source Document#

Source XML

Inactive ingredient matches#

Inactive Ingredient Database values describe FDA-listed use contexts. The match method and ambiguity count are shown because ingredient names, routes, and dosage forms are not always unique. Browse recovered IID releases and source provenance.

Inactive ingredient links page 1 of 3 · 136 matching rows.

DailyMed ingredient, IID ingredient, UNII table
DailyMed ingredientIID ingredientUNIIDosage form / routePotencyMaximum daily exposureMatch
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4TABLET / BUCCAL3 mgExact identifier — unii candidate
49 equally ranked IID candidates
FD&C BLUE NO. 2FD&C BLUE NO. 2L06K8R7DQKTABLET, FILM COATED / ORAL2 mgExact identifier — unii candidate
11 equally ranked IID candidates
MAGNESIUM STEARATEMAGNESIUM STEARATE70097M6I30POWDER / ORAL25 mgExact identifier — unii candidate
39 equally ranked IID candidates
MAGNESIUM STEARATEMAGNESIUM STEARATE70097M6I30RING / VAGINAL2 mgExact identifier — unii candidate
39 equally ranked IID candidates
CELLULOSE, MICROCRYSTALLINEMICROCRYSTALLINE CELLULOSEOP1R32D61UTABLET, COATED / ORAL920 mgExact identifier — unii candidate
28 equally ranked IID candidates
FD&C BLUE NO. 2FD&C BLUE NO. 2L06K8R7DQKCAPSULE, EXTENDED RELEASE / ORAL4 mgExact identifier — unii candidate
11 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4TABLET, EXTENDED RELEASE / ORAL450 mgExact identifier — unii candidate
49 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4TABLET, ORALLY DISINTEGRATING, DELAYED RELEASE / ORAL69 mgExact identifier — unii candidate
49 equally ranked IID candidates
CELLULOSE, MICROCRYSTALLINEMICROCRYSTALLINE CELLULOSEOP1R32D61UTABLET, ORALLY DISINTEGRATING, DELAYED RELEASE / ORAL1576 mgExact identifier — unii candidate
28 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4TABLET, CHEWABLE, EXTENDED RELEASE / ORAL2 mgExact identifier — unii candidate
49 equally ranked IID candidates
MAGNESIUM OXIDEMAGNESIUM OXIDE3A3U0GI71GTABLET, FILM COATED / ORAL80 mgExact identifier — unii candidate
9 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4POWDER, FOR SUSPENSION / ORAL2553 mgExact identifier — unii candidate
49 equally ranked IID candidates
CELLULOSE, MICROCRYSTALLINEMICROCRYSTALLINE CELLULOSEOP1R32D61UGRANULE, FOR SUSPENSION / ORAL278 mgExact identifier — unii candidate
28 equally ranked IID candidates
CELLULOSE, MICROCRYSTALLINEMICROCRYSTALLINE CELLULOSEOP1R32D61UTABLET / ORAL6184 mgExact identifier — unii candidate
28 equally ranked IID candidates
CELLULOSE, MICROCRYSTALLINEMICROCRYSTALLINE CELLULOSEOP1R32D61UCAPSULE, COATED PELLETS / ORAL456 mgExact identifier — unii candidate
28 equally ranked IID candidates
MAGNESIUM OXIDEMAGNESIUM OXIDE3A3U0GI71GCAPSULE / ORAL20 mgExact identifier — unii candidate
9 equally ranked IID candidates
CELLULOSE, MICROCRYSTALLINEMICROCRYSTALLINE CELLULOSEOP1R32D61UTABLET, DELAYED RELEASE / ORAL2210 mgExact identifier — unii candidate
28 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4PELLET / ORAL34 mgExact identifier — unii candidate
49 equally ranked IID candidates
FD&C BLUE NO. 2FD&C BLUE NO. 2L06K8R7DQKTABLET / BUCCAL0.01 mgExact identifier — unii candidate
11 equally ranked IID candidates
MAGNESIUM STEARATEMAGNESIUM STEARATE70097M6I30TABLET, FOR SUSPENSION / ORAL131 mgExact identifier — unii candidate
39 equally ranked IID candidates
MAGNESIUM STEARATEMAGNESIUM STEARATE70097M6I30TABLET, ORALLY DISINTEGRATING / ORAL187 mgExact identifier — unii candidate
39 equally ranked IID candidates
FD&C BLUE NO. 2FD&C BLUE NO. 2L06K8R7DQKTABLET, EXTENDED RELEASE / ORAL2.78 mgExact identifier — unii candidate
11 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4INSERT / VAGINAL8 mgExact identifier — unii candidate
49 equally ranked IID candidates
MAGNESIUM STEARATEMAGNESIUM STEARATE70097M6I30POWDER, FOR SUSPENSION / ORAL120 mgExact identifier — unii candidate
39 equally ranked IID candidates
FD&C BLUE NO. 2FD&C BLUE NO. 2L06K8R7DQKCAPSULE, DELAYED RELEASE / ORAL0.22 mgExact identifier — unii candidate
11 equally ranked IID candidates
CELLULOSE, MICROCRYSTALLINEMICROCRYSTALLINE CELLULOSEOP1R32D61UTABLET, CHEWABLE, EXTENDED RELEASE / ORAL144 mgExact identifier — unii candidate
28 equally ranked IID candidates
MAGNESIUM OXIDEMAGNESIUM OXIDE3A3U0GI71GCAPSULE, EXTENDED RELEASE / ORAL75 mgExact identifier — unii candidate
9 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4POWDER / ORAL602 mgExact identifier — unii candidate
49 equally ranked IID candidates
MAGNESIUM STEARATEMAGNESIUM STEARATE70097M6I30TABLET, COATED / ORAL184 mgExact identifier — unii candidate
39 equally ranked IID candidates
CELLULOSE, MICROCRYSTALLINEMICROCRYSTALLINE CELLULOSEOP1R32D61UTROCHE / ORAL300 mgExact identifier — unii candidate
28 equally ranked IID candidates
MAGNESIUM STEARATEMAGNESIUM STEARATE70097M6I30PELLET / ORAL24 mgExact identifier — unii candidate
39 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4TABLET / ORAL750 mgExact identifier — unii candidate
49 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4DROPS / ORALNAExact identifier — unii candidate
49 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4TABLET, COATED / ORAL176 mgExact identifier — unii candidate
49 equally ranked IID candidates
FD&C BLUE NO. 2FD&C BLUE NO. 2L06K8R7DQKSOAP / TOPICALNAExact identifier — unii candidate
11 equally ranked IID candidates
MAGNESIUM STEARATEMAGNESIUM STEARATE70097M6I30CAPSULE, DELAYED RELEASE / ORAL1060 mgExact identifier — unii candidate
39 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4TABLET, DELAYED RELEASE / ORAL1190 mgExact identifier — unii candidate
49 equally ranked IID candidates
MAGNESIUM STEARATEMAGNESIUM STEARATE70097M6I30CREAM / TOPICALNAExact identifier — unii candidate
39 equally ranked IID candidates
MAGNESIUM OXIDEMAGNESIUM OXIDE3A3U0GI71GTABLET, DELAYED RELEASE / ORAL368 mgExact identifier — unii candidate
9 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4GRANULE, FOR SOLUTION / ORAL1.8 mg/120mlExact identifier — unii candidate
49 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4CAPSULE / RESPIRATORY (INHALATION)NAExact identifier — unii candidate
49 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4TABLET, CHEWABLE / ORAL254 mgExact identifier — unii candidate
49 equally ranked IID candidates
CELLULOSE, MICROCRYSTALLINEMICROCRYSTALLINE CELLULOSEOP1R32D61UTABLET, FOR SUSPENSION / ORAL20100 mgExact identifier — unii candidate
28 equally ranked IID candidates
CELLULOSE, MICROCRYSTALLINEMICROCRYSTALLINE CELLULOSEOP1R32D61UCAPSULE, DELAYED RELEASE / ORAL366 mgExact identifier — unii candidate
28 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4LOZENGE / ORAL120 mgExact identifier — unii candidate
49 equally ranked IID candidates
CELLULOSE, MICROCRYSTALLINEMICROCRYSTALLINE CELLULOSEOP1R32D61UPELLET / ORAL1140 mgExact identifier — unii candidate
28 equally ranked IID candidates
MAGNESIUM STEARATEMAGNESIUM STEARATE70097M6I30WAFER / ORAL66 mgExact identifier — unii candidate
39 equally ranked IID candidates
CELLULOSE, MICROCRYSTALLINEMICROCRYSTALLINE CELLULOSEOP1R32D61UIMPLANT / INTRAVITREAL1.66 mgExact identifier — unii candidate
28 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4TABLET, DELAYED RELEASE PARTICLES / ORAL170 mgExact identifier — unii candidate
49 equally ranked IID candidates
MAGNESIUM STEARATEMAGNESIUM STEARATE70097M6I30TABLET, EXTENDED RELEASE / ORAL173 mgExact identifier — unii candidate
39 equally ranked IID candidates
MAGNESIUM STEARATEMAGNESIUM STEARATE70097M6I30INSERT / VAGINAL69 mgExact identifier — unii candidate
39 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4CAPSULE, DELAYED RELEASE / ORAL40 mgExact identifier — unii candidate
49 equally ranked IID candidates
MAGNESIUM STEARATEMAGNESIUM STEARATE70097M6I30TABLET / BUCCAL17.5 mgExact identifier — unii candidate
39 equally ranked IID candidates
MAGNESIUM STEARATEMAGNESIUM STEARATE70097M6I30LOZENGE / TRANSMUCOSAL100 mgExact identifier — unii candidate
39 equally ranked IID candidates
FD&C BLUE NO. 2FD&C BLUE NO. 2L06K8R7DQKCAPSULE / ORAL4 mgExact identifier — unii candidate
11 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4POWDER, FOR SOLUTION / ORAL280 mgExact identifier — unii candidate
49 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4GEL / TOPICAL6 mgExact identifier — unii candidate
49 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4TABLET, FILM COATED, EXTENDED RELEASE / ORAL336 mgExact identifier — unii candidate
49 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4CAPSULE, EXTENDED RELEASE / ORAL168 mgExact identifier — unii candidate
49 equally ranked IID candidates
SILICON DIOXIDESILICON DIOXIDEETJ7Z6XBU4CAPSULE, COATED, EXTENDED RELEASE / ORALNAExact identifier — unii candidate
49 equally ranked IID candidates

Reported adverse events (FAERS/openFDA)#

Adverse event summaries are temporarily unavailable. Other product information remains available.