Xyntha antihemophilic factor (recombinant) Kit — NDC 58394-0023-03 package photo
Label image from the product's FDA listing (DailyMed) — may show a different pack size or an older label revision.

Xyntha antihemophilic factor (recombinant) Kit — NDC 58394-023-03 (Billing 58394-0023-03)

by Wyeth BioPharma Division of Wyeth Pharmaceuticals LLC · 1 KIT in 1 CARTON * 4 mL in 1 SYRINGE * 1 mL in 1 PACKET

This is a package of Xyntha antihemophilic factor (recombinant) Kit from Wyeth BioPharma Division of Wyeth Pharmaceuticals LLC, marketed since Dec 2011 and currently FDA-listed. It is this product's only package size.

NDC 58394-0023-03
🏷️ FDA NDC (as labeled) 58394-023-03 billing pads the product segment with a zero
Brand On market Non-controlled ⇄ Compare with another NDC
🗂️ FDA directory synced Oct 1, 2026 · this listing last changed Oct 2, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →

NDC database record

One package, one record: these facts belong to NDC 58394-023-03 alone.

Record
FDA NDC Directory package listing · Plasma derivative
Code segments
58394 labeler · 023 product · 03 package
Package marketed since
Dec 1, 2011
Sample package
No — commercial package
Listing certified through
Dec 31, 2027
Barcode (UPC-A, from the NDC)
3 5839402303 8
FDA record last changed
Oct 2, 2026

Identity & classification

Regulatory identifiers FDA, NLM and CMS codes for this package

FDA NDC (as labeled) 58394-023-03
Product NDC 58394-023
11-digit billing NDC 58394002303
NCPDP billing unit EA — each (per item)
Application # BLA125264
SPL Set ID 25ea1c3c-14a2-ef11-302e-012bd683924f
DEA schedule Non-controlled
Marketing category BLA
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2011-12-01
Dosage form KIT
Biologic (Purple Book) 351(a)

Drug-database identifiers Medi-Span GPI and First Databank GCN / HICL / AHFS classification

GPI-14 85100010266430
GPI class Xyntha Solofuse
GCN Seq No 068429
GCN 31206
HICL code 041646
Ingredient (HICL) Antihemoph.fviii,B-Domain Del
HIC1 code M
Therapeutic class — broad (HIC1) Blood
HIC2 code M0
Therapeutic class — intermediate (HIC2) Blood And Blood Replacement Preparations
HIC3 code M0E
Therapeutic class — specific (HIC3) Antihemophilic Factors
AHFS code 20:28.16.00
AHFS class Hemostatics
FDB label name XYNTHA SOLOFUSE 500 UNIT KIT
FDB brand name Xyntha Solofuse
Legend status F — Federal legend — prescription drug or device
Quick answers
  • GSN (GCN sequence number): 068429
  • GCN: 31206
  • GPI-14 (Medi-Span): 85100010266430
  • HICL (First Databank): 041646
  • AHFS class code: 20:28.16.00
Why two NDCs? The FDA registers this code as 58394-023-03 — a 5-3-2 layout, and that's what's printed on the package and shown on DailyMed. For insurance claims, every NDC is standardized to a uniform 11-digit 5-4-2 format by adding a zero to the product segment → 58394-0023-03. Same drug, same package — only the format differs.
Where does this data come from?
Identifiers from the FDA openFDA NDC Directory and Structured Product Labeling; RxCUI from RxNorm (NLM); GPI from Medi-Span; GCN / HIC / AHFS / legend from First Databank.

Clinical

Label name XYNTHA SOLOFUSE 500 UNIT KIT Ingredient Antihemoph.fviii,B-Domain Del
Where does this data come from?
Plain-language summary from MedlinePlus (U.S. National Library of Medicine); supplement & herbal interactions and nutrient depletion data from the Natural Medicines database; our full guide is HelloPharmacist editorial content.

Pricing

A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.

Price systemPer eachPer package
Retail pharmacies payNADAC · weekly Not in the retail survey — common for institutional, discontinued, or low-volume packs.
Medicaid paysCMS SDUD · 12 mo No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data.
Medicare drug plans payPart D · quarterly No Part D plan price is available for this NDC in our data.
Medicare Part B allowsASP · J7185 $1.371 / J7185 unit —
Where does this data come from?
NADAC (National Average Drug Acquisition Cost) is the CMS weekly pharmacy-acquisition-cost survey — what pharmacies pay. ASP (Average Sales Price) is the CMS Medicare Part B drug-payment file, published quarterly. Medicaid pays is computed by us from CMS State Drug Utilization Data (total reimbursed ÷ units, trailing 12 months) — gross of rebates and inclusive of dispensing fees, so it reflects what Medicaid paid, not an acquisition cost. Medicare drug plans pay is the median negotiated point-of-sale unit cost across plans listing this NDC in the CMS quarterly Prescription Drug Plan pricing files, before rebates. The VA pays is the federal contract price (FSS, and the statutory Big 4 ceiling where listed) from the VA National Acquisition Center pharmaceutical price file. All are free public government data; each measures a different payer, so the figures are not directly comparable.

Billing & reimbursement

FDA NDC (as labeled)58394-023-03
11-digit billing NDC58394-0023-03
Format5-3-2 as registered → padded to 5-4-2 for billing (zero added to the product segment)
HCPCS J-codeJ7185
DescriptorInjection, factor viii (antihemophilic factor, recombinant) (xyntha), per i.u.
Billing units / pkg1 units
How the units are derivedThis package is 1; the HCPCS unit is 1 IU, so one package = 1 billing unit.
Medicare Part B spend (2026 (Q1))$1,070,396 · 37 claims · $28,929.62 per claim (all NDCs under J7185)
Crosswalk sourceCMS ASP NDC-HCPCS Crosswalk
Where does this data come from?
The HCPCS J-code crosswalk comes from the CMS ASP NDC-HCPCS crosswalk and the DMEPDAC (DME MAC) NDC-HCPCS crosswalk — free public CMS data. Billing units are derived from the code’s descriptor and the package amount.

Packaging — all sizes for this product

Package NDCDescription Marketing startMarketing endStatus
58394-0023-03 You're viewing this Main listing 1 KIT in 1 CARTON * 4 mL in 1 SYRINGE * 1 mL in 1 PACKET 2011-12-01 — Active

Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Advate 00944-3052-02 Takeda 1 kit — — FDA listed —
Xyntha 58394-0013-01 Wyeth 1 kit — — FDA listed —
Kovaltry 00026-3828-50 Bayer 1 kit — — FDA listed —
Kovaltry 00026-3821-25 Bayer 1 kit — — FDA listed —
Advate 00944-3045-10 Takeda 1 kit — — FDA listed —
Advate 00944-3046-10 Takeda 1 kit — — FDA listed —
Advate 00944-3047-10 Takeda 1 kit — — FDA listed —
Xyntha 58394-0014-01 Wyeth 1 kit — — FDA listed —
Kovaltry 00026-3824-25 Bayer 1 kit — — FDA listed —
Kovaltry 00026-3826-50 Bayer 1 kit — — FDA listed —
Xynthathis 58394-0023-03 Wyeth 1 kit — — FDA listed —
Xyntha 58394-0025-03 Wyeth 1 kit — — FDA listed —
Advate 00944-3053-02 Takeda 1 kit — — FDA listed —
Xyntha 58394-0022-03 Wyeth 1 kit — — FDA listed —
Advate 00944-3051-02 Takeda 1 kit — — FDA listed —
Xyntha 58394-0015-01 Wyeth 1 kit — — FDA listed —
Xyntha 58394-0016-03 Wyeth 1 kit — — FDA listed —
Xyntha 58394-0024-03 Wyeth 1 kit — — FDA listed —
Advate 00944-3054-02 Takeda 1 kit — — FDA listed —
Xyntha 58394-0012-01 Wyeth 1 kit — — FDA listed —
Kovaltry 00026-3822-25 Bayer 1 kit — — FDA listed —
About this product: this is a biologic. Biologics don't have small-molecule generics — competition comes from FDA-licensed biosimilars (shown above), not generics.
Where does this data come from?
Equivalents are other NDCs of the same ingredient, form and route from the openFDA NDC Directory, ranked least-expensive-first by NADAC. Therapeutic-equivalence (AB) ratings come from the FDA Orange Book; biologics use the FDA Purple Book for biosimilar & interchangeable status.

Availability & biosimilar status

🏛️
2008
First FDA approval
Feb 2008
📍
2026
Currently FDA-listed
18 years listed
🧬
·
Biosimilars
see Purple Book
🧬Biologic — competition comes from biosimilars

Biologics have no small-molecule generics; biosimilar competition is tracked in the FDA Purple Book.

FDA Purple Book — biosimilars & interchangeables ⓘ
🔒 No FDA-licensed biosimilars or interchangeable biosimilars are listed yet for this biologic. It currently has no biosimilar competition in the FDA Purple Book.
Source: FDA Purple Book (purplebooksearch.fda.gov), matched on the reference product’s active ingredient.
Where does this data come from?
Patents and exclusivity from the FDA Purple Book (biologics), refreshed from public FDA data. Biosimilar launch timing is an estimate, not a guarantee.

Inactive Ingredients / Excipients

Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.

A current SPL was checked, but it does not contain a structured or narrative inactive-ingredient list for this product. This does not mean the product has no inactive ingredients.
Where does this data come from?
Source: official FDA Structured Product Labeling (SPL) via DailyMed and the openFDA label index. Structured IACT rows and label-wide narrative are kept separate; availability and product-level specificity depend on the submitted label.

Inactive ingredient FAQ

Are inactive ingredients the same for every manufacturer?
No. Inactive ingredients can differ by manufacturer, dosage form, strength, and package / product version.
Why might an inactive ingredient be missing?
Some SPLs do not provide a complete structured inactive-ingredient list, and older or unusual labels may only include the information in narrative text.
Can inactive ingredients matter?
Yes. They can matter for allergies, intolerances, dyes, gluten / lactose concerns, preservatives, and formulation differences — but confirm with a pharmacist or the manufacturer when it’s clinically important.

Manufacturer & labeler

LabelerWyeth BioPharma Division of Wyeth Pharmaceuticals LLC
FDA applicationBLA125264 (BLA)
Labeler code58394
First marketedDec 2011
Product typePlasma Derivative
Portfolio16 products on file
The labeler markets the product; the application holder owns the FDA approval. They’re often the same company but can differ (e.g. a repackager or an authorized generic). A mailing address / phone appears here when the manufacturer includes it in the product’s FDA label (not all do).
Where does this data come from?
Labeler, application holder and registered establishment from the FDA openFDA NDC Directory and Drugs@FDA; address/contact from the product’s FDA label.

Full FDA label FDA SPL

The complete FDA label for this product, verbatim, section by section. Very long sections are excerpted here and marked; the full text is on DailyMed (linked in the sources below). Jump with a chip, search within the label, or expand everything.
🎯 Indications and Usage 114 words ▾

1 INDICATIONS AND USAGE XYNTHA is an Antihemophilic (Recombinant) Factor indicated for: Control and prevention of bleeding episodes in patients with hemophilia A ( 1.1 ) Surgical prophylaxis in patients with hemophilia A ( 1.2 )

1.1Control and Prevention of Bleeding Episodes in Hemophilia A XYNTHA Antihemophilic Factor (Recombinant), Plasma/Albumin-Free is indicated for the control and prevention of bleeding episodes in patients with hemophilia A (congenital factor VIII deficiency or classic hemophilia). XYNTHA does not contain von Willebrand factor, and therefore is not indicated in patients with von Willebrand’s disease.

1.2Surgical Prophylaxis in Patients with Hemophilia A XYNTHA Antihemophilic Factor (Recombinant), Plasma/Albumin-Free is indicated for surgical prophylaxis in patients with hemophilia A.

⏱️ Dosage and Administration ~3 min read ▾

2 DOSAGE AND ADMINISTRATION For Intravenous Use After Reconstitution Treatment with XYNTHA Antihemophilic Factor (Recombinant), Plasma/Albumin-Free should be initiated under the supervision of a physician experienced in the treatment of hemophilia A. Dosage and duration of treatment depend on the severity of the factor VIII deficiency, the location and extent of bleeding, and the patient's clinical condition. Doses administered should be titrated to the patient's clinical response.

In the presence of an inhibitor, higher doses may be required. 1 One International Unit (IU) of factor VIII activity corresponds approximately to the quantity of factor VIII in one milliliter of normal human plasma. The calculation of the required dosage of factor VIII is based upon the empirical finding that, on average, 1 IU of factor VIII per kg body weight raises the plasma factor VIII activity by approximately 2 IU/dL.

2 The required dosage is determined using the following formula: Required units = body weight (kg) x desired factor VIII rise (IU/dL or % of normal) x 0.5 (IU/kg per IU/dL) The labeled potency of XYNTHA is based on the European Pharmacopoeia chromogenic substrate assay, in which the Wyeth manufacturing standard has been calibrated using a one-stage clotting assay. This method of potency assignment is intended to harmonize XYNTHA with clinical monitoring using a one-stage clotting assay [ see Clinical Pharmacology ( 12.3 ) ].

For intravenous use after reconstitution only ( 2 ) The required dosage is determined using the following formula: Required units = body weight (kg) x desired factor VIII rise (IU/dL or % of normal) x 0.5 (IU/kg per IU/dL) Frequency of intravenous injection of the reconstituted product is determined by the type of bleeding episode and the recommendation of the treating physician. ( 2.1 , 2.2 )

2.1Control and Prevention of Bleeding Episodes In the case of the following bleeding events, consideration should be given to maintaining the factor VIII activity at or above the plasma levels (in % of normal or in IU/dL) outlined below for the indicated period. The following chart can be used to guide dosing in bleeding episodes: Type of Bleeding Episode Factor VIII Level Required (IU/dL or % of normal) Frequency of Doses / Duration of Therapy Minor Early hemarthrosis, minor muscle or oral bleeds. 20–40 Repeat every 12-24 hours as necessary until resolved.

At least 1 day, depending upon the severity of the bleeding episode. Moderate Bleeding into muscles. Mild head trauma.

Bleeding into the oral cavity. 30–60 Repeat infusion every 12-24 hours for 3-4 days or until adequate local hemostasis is achieved. Major Gastrointestinal bleeding.

Intracranial, intra-abdominal or intrathoracic bleeding. Fractures. 60–100 Repeat infusion every 8-24 hours until bleeding is resolved.

2.2Surgical Prophylaxis in Patients with Hemophilia A In the case of the following bleeding events, consideration should be given to maintaining the factor VIII activity at or above the plasma levels (in % of normal or in IU/dL) outlined below for the indicated period. Monitoring of replacement therapy by means of plasma factor VIII activity is recommended, particularly for surgical intervention. The following chart can be used to guide dosing in surgery: Type of Surgery Factor VIII Level Required (IU/dL or % of normal) Frequency of Doses / Duration of Therapy Minor Minor operations, including tooth extraction.

30–60 Repeat infusion every 12-24 hours for 3-4 days or until adequate local hemostasis is achieved. For tooth extraction, a single infusion plus oral antifibrinolytic therapy within 1 hour may be sufficient. Major Major operations.

60–100 Repeat infusion every 8-24 hours until threat is resolved, or in the case of surgery, until adequate local hemostasis and wound healing are achieved.

2.3Instructions for Use XYNTHA is administered by intravenous (IV) infusion after reconstitution of the freeze-dried powder with the diluent (0.9% Sodium Chlorid… [Excerpted — this section continues on DailyMed.]

💊 Dosage Forms and Strengths 38 words ▾

3 DOSAGE FORMS AND STRENGTHS XYNTHA is supplied as a white to off-white freeze-dried powder in the following dosage: 3000 IU XYNTHA freeze-dried powder is available as: 3000 IU in a single-use prefilled dual-chamber syringe. ( 3 )

⛔ Contraindications 4 words ▾

4 CONTRAINDICATIONS None. None.

⚠️ Warnings and Cautions ~2 min read ▾

5 WARNINGS AND PRECAUTIONS Anaphylaxis and severe hypersensitivity reactions are possible. Should such reactions occur, treatment with the product should be discontinued, and appropriate treatment should be administered. ( 5.1 ) Development of activity-neutralizing antibodies has been detected in patients receiving factor VIII-containing products.

If expected plasma factor VIII activity levels are not attained, or if bleeding is not controlled with an appropriate dose, an assay that measures factor VIII inhibitor concentration should be performed. ( 5.2 , 5.4 ) Patients may develop hypersensitivity to hamster protein, which is present in trace amounts in the product. ( 5.3 )

5.1Anaphylaxis and Severe Hypersensitivity Reactions Allergic type hypersensitivity reactions are possible. Patients should be informed of the early signs or symptoms of hypersensitivity reactions [including hives (rash with itching), generalized urticaria, tightness of the chest, wheezing, and hypotension] and anaphylaxis [ see Patient Counseling Information ( 17 ) ]. Patients should be advised to discontinue use of the product and contact their physicians if these symptoms occur.

5.2Neutralizing Antibodies The occurrence of neutralizing antibodies (inhibitors) is well known in the treatment of patients with hemophilia A. Inhibitors have been detected in patients receiving factor VIII-containing products. Inhibitors are common in previously untreated patients 4,5,6 and have been observed in previously treated patients on factor VIII products.

7,8,9,10,11,12 Patients using coagulation factor VIII products, including XYNTHA, should be monitored for the development of factor VIII inhibitors. If expected factor VIII activity plasma levels are not attained, or if bleeding is not controlled with an appropriate dose, an assay should be performed to determine if a factor VIII inhibitor is present [ see Warnings and Precautions ( 5.4 ) ]. If detected, inhibitors should be titered in Bethesda Units (BU).

5.3Formation of Antibodies to Hamster Protein XYNTHA contains trace amounts of hamster proteins. Patients treated with this product could develop hypersensitivity to these non-human mammalian proteins.

5.4Monitoring: Laboratory Tests Monitor plasma factor VIII activity levels by the one-stage clotting assay to confirm that adequate factor VIII levels have been achieved and are maintained, when clinically indicated [ see Dosage and Administration ( 2 ) ]. It is recommended that individual factor VIII values for recovery and, if clinically indicated, other pharmacokinetic characteristics be used to guide dosing and administration. Monitor for development of factor VIII inhibitors.

Perform assay to determine if factor VIII inhibitor is present when expected factor VIII activity plasma levels are not attained, or when bleeding is not controlled with the expected dose of XYNTHA. Use Bethesda Units (BU) to titer inhibitors.

🤒 Adverse Reactions ~3 min read ▾

6 ADVERSE REACTIONS The most common adverse reaction in study 1 is headache (24% of subjects) and in study 2 is pyrexia (41% of subjects). The most common adverse reaction in Study 1 is headache (24% of subjects) and in Study 2 is pyrexia (41% of subjects). ( 6.1 ) Two out of 89 subjects (who completed ≥ 50 exposure days) developed an inhibitor during the course of the study.

The observation of 2 inhibitors in 89 subjects who completed ≥ 50 exposure days was consistent with a 95% probability that the inhibitor formation rate with XYNTHA is less than 4.17% using a Bayesian analysis. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Wyeth Pharmaceuticals, Inc. at 1-800-934-5556 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch

6.1Clinical 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 clinical practice. Study 1 is a pivotal phase 3 (safety and efficacy) study in which previously treated patients (PTPs) with hemophilia A received XYNTHA for routine prophylaxis and on-demand treatment, 94 subjects received at least one dose of XYNTHA, resulting in a total of 6,775 infusions [ see Clinical Studies ( 14 ) ].

In Study 1, the most frequently reported treatment-emergent adverse reaction was headache (24% of subjects). Other adverse reactions reported in ≥ 5% of subjects were: nausea (6%), diarrhea (5%), asthenia (5%) and pyrexia (5%). No subject developed anti-CHO or anti-TN8.2 antibodies.

Study 2 (surgery) is an on-going, open-label, single-arm study of at least 25 evaluable PTPs with severe or moderately severe hemophilia A (factor VIII activity in plasma [FVIII:C] ≤ 2%) who required elective major surgery and were planned to receive XYNTHA replacement therapy for at least 6 days post-surgery. Twenty-two subjects received at least one dose of XYNTHA, resulting in 766 infusions [ see Clinical Studies ( 14 ) ]. In Study 2, the most frequently reported treatment-emergent adverse reaction was pyrexia (41% of subjects).

Other adverse reactions reported in ≥ 5% of subjects were: headache (9%), nausea (9%), diarrhea (5%), vomiting (5%) and asthenia (5%). The adverse reactions reported in either study were considered mild or moderate in severity. Immunogenicity In Study 1, the incidence of FVIII inhibitors to XYNTHA was the primary safety endpoint.

Two subjects with inhibitors were observed in 89 subjects (2.2%) who completed ≥ 50 exposure days. These results were consistent with the pre-specified endpoint that no more than 2 inhibitors may be observed in at least 81 subjects. In a Bayesian statistical analysis, results from this study were used to update PTP results from a prior supporting study using XYNTHA manufactured at the initial facility, where one de novo and two recurrent inhibitors were observed in 110 subjects, and the experience with predecessor product (1 inhibitor in 113 subjects).

This Bayesian analysis indicates that the population (true) inhibitor rate for XYNTHA, the estimate of the 95% upper limit of the true inhibitor rate, was 4.17% (see Table 1 ). Table 1: Bayesian Posterior Distribution of Inhibitor Rate ---Posterior Beta Distribution Characteristics--- a Prior alpha of 2.5 plus the number of observed inhibitors. b Prior beta of 110 plus the number of subjects analyzed minus the number of observed inhibitors. c Posterior probability is the probability that the true inhibitor rate is less than the upper acceptable limit of 4.4%.

A posterior probability greater than 0.95 is deemed acceptable. d The 95% upper limit of the true inhibitor rate (the maximum rate calculated with at least 95% probability) based on the posterior distribution. An inhibitor rate less than 4.4% is deemed acceptable. FVIII Inhibitor Nijmegen Result (BU/mL) Number of Inhibitors Number of Subjects Analyzed Observed Inhibito… [Excerpted — this section continues on DailyMed.]

🔄 Drug Interactions 6 words ▾

7 DRUG INTERACTIONS None known. None.

👥 Use in Specific Populations ~1 min read ▾

8 USE IN SPECIFIC POPULATIONS Pregnancy: No human or animal data. Use only if clearly needed. (8.1)

8.1Pregnancy Pregnancy Category C Animal reproduction studies have not been conducted with XYNTHA Antihemophilic Factor (Recombinant), Plasma/Albumin-Free. It is also not known whether XYNTHA can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. XYNTHA should be given to a pregnant woman only if clinically indicated.

8.2Labor and Delivery There is no information available on the effect of factor VIII replacement therapy on labor and delivery. XYNTHA should be used only if clinically indicated.

8.3Nursing Mothers It is not known whether this drug is excreted into human milk. Because many drugs are excreted into human milk, caution should be exercised if XYNTHA is administered to nursing mothers. XYNTHA should be given to nursing mothers only if clinically indicated.

8.4Pediatric Use A study of XYNTHA in previously treated patients less than 6 years of age is currently ongoing. Pharmacokinetics of XYNTHA was studied in 7 previously treated patients 12-16 years of age. Pharmacokinetic parameters in these patients were similar to those obtained for adults after a dose of 50 IU/kg. For these 7 patients, the mean (± SD) C max and AUC ∞ were 1.09 ±

0.21IU/mL and 11.5 ±

5.2IU∙h/mL, respectively. The mean clearance and plasma half‑life values were 5.23 ± 2.36 mL/h/kg and 8.03 ± 2.44 hours (range 3.52 – 10.6 hours), respectively. The mean K‑value and in vivo recoveries were 2.18 ±

0.41IU/dL per IU/kg and 112 ± 23%, respectively.

8.5Geriatric Use Clinical studies of XYNTHA did not include subjects aged 65 and over. In general, dose selection for an elderly patient should be individualized.

🤰 Pregnancy 52 words ▾

8.1Pregnancy Pregnancy Category C Animal reproduction studies have not been conducted with XYNTHA Antihemophilic Factor (Recombinant), Plasma/Albumin-Free. It is also not known whether XYNTHA can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. XYNTHA should be given to a pregnant woman only if clinically indicated.

🧒 Pediatric Use 118 words ▾

8.4Pediatric Use A study of XYNTHA in previously treated patients less than 6 years of age is currently ongoing. Pharmacokinetics of XYNTHA was studied in 7 previously treated patients 12-16 years of age. Pharmacokinetic parameters in these patients were similar to those obtained for adults after a dose of 50 IU/kg. For these 7 patients, the mean (± SD) C max and AUC ∞ were 1.09 ±

0.21IU/mL and 11.5 ±

5.2IU∙h/mL, respectively. The mean clearance and plasma half‑life values were 5.23 ± 2.36 mL/h/kg and 8.03 ± 2.44 hours (range 3.52 – 10.6 hours), respectively. The mean K‑value and in vivo recoveries were 2.18 ±

0.41IU/dL per IU/kg and 112 ± 23%, respectively.

🧓 Geriatric Use 26 words ▾

8.5Geriatric Use Clinical studies of XYNTHA did not include subjects aged 65 and over. In general, dose selection for an elderly patient should be individualized.

🧬 Clinical Pharmacology ~2 min read ▾

12 CLINICAL PHARMACOLOGY

12.1Mechanism of Action Factor VIII is the specific clotting factor deficient in patients with hemophilia A (classical hemophilia). 15 Activated factor VIII acts as a cofactor for activated factor IX, accelerating the conversion of factor X to activated factor X. 15 Activated factor X converts prothrombin into thrombin.

15 Thrombin then converts fibrinogen into fibrin, and a clot is formed. 15 Factor VIII activity is greatly reduced in patients with hemophilia A, and, therefore, replacement therapy is necessary. The administration of XYNTHA increases plasma levels of factor VIII activity and can temporarily correct the coagulation defect in these patients.

12.2Pharmacodynamics The administration of XYNTHA increases plasma levels of factor VIII activity and can temporarily correct the coagulation defect in hemophilia A patients.

12.3Pharmacokinetics In a pivotal crossover clinical study, 30 evaluable previously treated patients [PTP] (≥ 12 years) received a single infusion of 50 IU/kg of XYNTHA followed by a full-length recombinant FVIII (FLrFVIII, Advate ® ) or a single infusion of FLrFVIII followed by XYNTHA in a randomized crossover design. The one-stage clotting assay method was used to determine the concentrations of these two products in blood. XYNTHA was shown to be pharmacokinetically equivalent to FLrFVIII as the 90% confidence intervals for XYNTHA-to-FLrFVIII ratios of the mean values of C max and AUC ∞ were within pre-established limits of 80% to 125%.

The pharmacokinetic parameters of XYNTHA in the above group of patients are summarized in Table 2 . In addition, 25 PTPs received a single infusion of 50 IU/kg of XYNTHA for a 6-month follow-up PK study. The pharmacokinetic parameters were comparable between baseline and month 6, indicating no time-dependent changes in the pharmacokinetic properties of XYNTHA; the 90% confidence intervals for XYNTHA 6 month-to-baseline ratios of the mean values of C max and AUC ∞ were within pre‑established limits of 80% to 125%.

Table 2: Pharmacokinetic Parameter Estimates for XYNTHA at Baseline (Cross-over phase) and Month 6 (Follow-up phase) in Previously Treated Patients with Hemophilia A Parameter Parameters at Initial Visit (Crossover phase, n = 30) Mean ± SD Parameters at Month 6 (Follow-up phase, n = 25) Mean ± SD Abbreviations: AUC ∞ = area under the plasma concentration-time curve from zero to infinity; C max = peak concentration; K‑value = incremental recovery; t 1/2 = plasma elimination half-life; CL = clearance; n = number of subjects; SD = standard deviation. *One subject was excluded from the calculation due to lack of a well-defined terminal phase.

C max (IU/mL) 1.08 ± 0.22 1.24 ±

0.42AUC ∞ (IU∙hr/mL) 13.5 ± 5.6 15.0 ± 7.5 t 1/2 (hr) 11.2 ± 5.0 11.8 ± 6.2* CL (mL/hr/kg) 4.51 ± 2.23 4.04 ±

1.87K-value (IU/dL per IU/kg) 2.15 ± 0.44 2.47 ±

0.84 In vivo Recovery (%) 103 ± 21 116 ± 40

🧬 Mechanism of Action 100 words ▾

12.1Mechanism of Action Factor VIII is the specific clotting factor deficient in patients with hemophilia A (classical hemophilia). 15 Activated factor VIII acts as a cofactor for activated factor IX, accelerating the conversion of factor X to activated factor X. 15 Activated factor X converts prothrombin into thrombin.

15 Thrombin then converts fibrinogen into fibrin, and a clot is formed. 15 Factor VIII activity is greatly reduced in patients with hemophilia A, and, therefore, replacement therapy is necessary. The administration of XYNTHA increases plasma levels of factor VIII activity and can temporarily correct the coagulation defect in these patients.

📦 How Supplied / Storage and Handling ~2 min read ▾

16 HOW SUPPLIED/STORAGE AND HANDLING

16.1How Supplied XYNTHA ® Antihemophilic Factor (Recombinant), Plasma/Albumin-Free is supplied in a kit that includes the XYNTHA freeze-dried powder that contain nominally 3000 IU and 4 mL 0.9 % Sodium Chloride solution for reconstitution in a prefilled dual-chamber syringe: 3000 IU Kit: NDC 58394-016-03 In addition, each XYNTHA Antihemophilic Factor (Recombinant), Plasma/Albumin-Free Kit contains: one plunger rod for assembly, one sterile infusion set, two alcohol swabs, one bandage, one gauze pad, one vented sterile cap, and one package insert.

XYNTHA ® Antihemophilic Factor (Recombinant), Plasma/Albumin-Free is also supplied in kits that include single-use vials that contain nominally 250, 500, 1000, or 2000 IU of freeze‑dried powder per vial: 250 IU Kit: NDC 58394-012-01 500 IU Kit: NDC 58394-013-01 1000 IU Kit: NDC 58394-014-01 2000 IU Kit: NDC 58394-015-01 Actual factor VIII activity in IU is stated on the label of each XYNTHA Antihemophilic Factor (Recombinant), Plasma/Albumin-Free prefilled dual-chamber syringe or vial.

16.2Storage and Handling Product as Packaged for Sale: Store XYNTHA under refrigeration at a temperature of 2° to 8°C (36° to 46°F) for up to 36 months from the date of manufacture until the expiration date stated on the label. XYNTHA may also be stored at room temperature not to exceed 25°C (77°F) for up to 3 months. The starting date at room temperature storage should be clearly recorded in the space provided on the outer carton.

At the end of the 3-month period, the product must not be put back into the refrigerator, but must be used immediately or discarded. Do not use XYNTHA after the expiration date stated on the label or after 3 months when stored at room temperature, whichever is earlier. Do not freeze, to prevent damage to the XYNTHA Prefilled Dual-Chamber Syringe.

During storage, avoid prolonged exposure of XYNTHA to light. Product After Reconstitution: Administer XYNTHA within 3 hours after reconstitution or after removal of the grey rubber tip cap from the XYNTHA Prefilled Dual-Chamber Syringe. The reconstituted solution may be stored at room temperature prior to administration.

16.1How Supplied XYNTHA ® Antihemophilic Factor (Recombinant), Plasma/Albumin-Free is supplied in a kit that includes the XYNTHA freeze-dried powder that contain nominally 3000 IU and 4 mL 0.9 % Sodium Chloride solution for reconstitution in a prefilled dual-chamber syringe: 3000 IU Kit: NDC 58394-016-03 In addition, each XYNTHA Antihemophilic Factor (Recombinant), Plasma/Albumin-Free Kit contains: one plunger rod for assembly, one sterile infusion set, two alcohol swabs, one bandage, one gauze pad, one vented sterile cap, and one package insert.

XYNTHA ® Antihemophilic Factor (Recombinant), Plasma/Albumin-Free is also supplied in kits that include single-use vials that contain nominally 250, 500, 1000, or 2000 IU of freeze‑dried powder per vial: 250 IU Kit: NDC 58394-012-01 500 IU Kit: NDC 58394-013-01 1000 IU Kit: NDC 58394-014-01 2000 IU Kit: NDC 58394-015-01 Actual factor VIII activity in IU is stated on the label of each XYNTHA Antihemophilic Factor (Recombinant), Plasma/Albumin-Free prefilled dual-chamber syringe or vial.

📋 Description ~1 min read ▾

11 DESCRIPTION Antihemophilic Factor (Recombinant), Plasma/Albumin-Free, the active ingredient in XYNTHA, is a recombinant coagulation factor VIII produced by recombinant DNA technology for use in therapy of factor VIII deficiency. The Antihemophilic Factor (Recombinant), Plasma/Albumin‑Free in XYNTHA is a purified glycoprotein, with an approximate molecular mass of 170 kDa consisting of 1,438 amino acids, which does not contain the B-domain. 13 The amino acid sequence of Antihemophilic Factor (Recombinant), Plasma/Albumin‑Free in XYNTHA is comparable to the 90 + 80 kDa form of human factor VIII.

The Antihemophilic Factor (Recombinant), Plasma/Albumin‑Free in XYNTHA is secreted by a genetically engineered Chinese hamster ovary (CHO) cell line. The cell line is grown in a chemically defined cell culture medium that contains recombinant insulin, but does not contain any materials derived from human or animal sources. The Antihemophilic Factor (Recombinant), Plasma/Albumin‑Free in XYNTHA is purified by a process that uses a series of chromatography steps, one of which is based on affinity chromatography using a patented synthetic peptide affinity ligand.

14 The process also includes a solvent-detergent viral inactivation step and a virus‑retaining nanofiltration step. The potency expressed in International Units (IU) is determined using the chromogenic assay of the European Pharmacopoeia. The Wyeth manufacturing reference standard for potency has been calibrated against the World Health Organization (WHO) International Standard for factor VIII activity using the one-stage clotting assay.

The specific activity of XYNTHA is 5,500 to 9,900 IU per milligram of protein. XYNTHA is formulated as a sterile, nonpyrogenic, preservative-free, freeze-dried powder preparation for intravenous (IV) injection. Each single-use prefilled dual-chamber syringe contains nominally 3000 IU of XYNTHA.

Upon reconstitution, the product is a clear to slightly opalescent, colorless solution that contains sodium chloride, sucrose, L-histidine, calcium chloride and polysorbate 80.

💬 Information for Patients 193 words ▾

17 PATIENT COUNSELING INFORMATION See Patient Product Information and Instructions for Using XYNTHA. Advise patients to report any adverse reactions or problems following XYNTHA administration to their physician or healthcare provider. Advise patients that allergic-type hypersensitivity reactions are possible and inform them of the early signs of hypersensitivity reactions [including hives (rash with itching), generalized urticaria, tightness of the chest, wheezing, hypotension] and anaphylaxis.

Advise patients to discontinue use of the product and contact their physicians if these symptoms occur. Advise patients to contact their physician or treatment facility for further treatment and/or assessment, if they experience a lack of a clinical response to factor VIII replacement therapy, as this may be a manifestation of an inhibitor. Advise female patients to notify their physician if they become pregnant or intend to become pregnant during therapy.

Advise nursing mothers to notify their physician if they are breastfeeding. Advise patients that local irritation may occur when infusing XYNTHA after the reconstitution in the prefilled dual-chamber syringe. Advise patients to consult with their healthcare professional prior to travel and to bring an adequate supply of XYNTHA, based on their current regimen, for anticipated treatment when traveling.

🍼 Nursing Mothers 45 words ▾

8.3Nursing Mothers It is not known whether this drug is excreted into human milk. Because many drugs are excreted into human milk, caution should be exercised if XYNTHA is administered to nursing mothers. XYNTHA should be given to nursing mothers only if clinically indicated.

🧬 Pharmacokinetics ~2 min read ▾

12.3Pharmacokinetics In a pivotal crossover clinical study, 30 evaluable previously treated patients [PTP] (≥ 12 years) received a single infusion of 50 IU/kg of XYNTHA followed by a full-length recombinant FVIII (FLrFVIII, Advate ® ) or a single infusion of FLrFVIII followed by XYNTHA in a randomized crossover design. The one-stage clotting assay method was used to determine the concentrations of these two products in blood. XYNTHA was shown to be pharmacokinetically equivalent to FLrFVIII as the 90% confidence intervals for XYNTHA-to-FLrFVIII ratios of the mean values of C max and AUC ∞ were within pre-established limits of 80% to 125%.

The pharmacokinetic parameters of XYNTHA in the above group of patients are summarized in Table 2 . In addition, 25 PTPs received a single infusion of 50 IU/kg of XYNTHA for a 6-month follow-up PK study. The pharmacokinetic parameters were comparable between baseline and month 6, indicating no time-dependent changes in the pharmacokinetic properties of XYNTHA; the 90% confidence intervals for XYNTHA 6 month-to-baseline ratios of the mean values of C max and AUC ∞ were within pre‑established limits of 80% to 125%.

Table 2: Pharmacokinetic Parameter Estimates for XYNTHA at Baseline (Cross-over phase) and Month 6 (Follow-up phase) in Previously Treated Patients with Hemophilia A Parameter Parameters at Initial Visit (Crossover phase, n = 30) Mean ± SD Parameters at Month 6 (Follow-up phase, n = 25) Mean ± SD Abbreviations: AUC ∞ = area under the plasma concentration-time curve from zero to infinity; C max = peak concentration; K‑value = incremental recovery; t 1/2 = plasma elimination half-life; CL = clearance; n = number of subjects; SD = standard deviation. *One subject was excluded from the calculation due to lack of a well-defined terminal phase.

C max (IU/mL) 1.08 ± 0.22 1.24 ±

0.42AUC ∞ (IU∙hr/mL) 13.5 ± 5.6 15.0 ± 7.5 t 1/2 (hr) 11.2 ± 5.0 11.8 ± 6.2* CL (mL/hr/kg) 4.51 ± 2.23 4.04 ±

1.87K-value (IU/dL per IU/kg) 2.15 ± 0.44 2.47 ±

0.84 In vivo Recovery (%) 103 ± 21 116 ± 40

🧬 Pharmacodynamics 24 words ▾

12.2Pharmacodynamics The administration of XYNTHA increases plasma levels of factor VIII activity and can temporarily correct the coagulation defect in hemophilia A patients.

🔬 Clinical Studies ~3 min read ▾

14 CLINICAL STUDIES The efficacy of XYNTHA was evaluated in Study 1, in which subjects received XYNTHA on a prophylaxis treatment regimen, with on-demand treatment administered as clinically indicated. Ninety-four (94) subjects were enrolled and treated with at least one dose, and all are included in the intent-to-treat (ITT) population. Eighty-nine (89) subjects accrued ≥ 50 exposure days.

From the 94 subjects enrolled, thirty (30) evaluable subjects participated in the PK study and received at least 1 PK dose. Twenty-five (25) evaluable subjects with FVIII:C ≤ 1% completed both the first (PK1) and the second (PK2) assessments [ see Clinical Pharmacology ( 12.3 ) ]. Median age for the 94 treated subjects was 24 years (mean 27.7 and range 12-60 years).

All subjects had ≥ 150 previous exposure days with baseline FVIII activity level of ≤ 2%. In the open-label safety and efficacy period, all 94 subjects received XYNTHA for routine prophylaxis at the dose of 30 ± 5 IU/kg 3 times a week with provisions for dose escalation based on pre-specified criteria. Seven (7) dose escalations were prescribed for 6 subjects during the course of the study.

Forty-three (43) of ninety-four (94), i.e. 45.7%, subjects reported no bleeding while on routine prophylaxis. The median annualized bleeding rate (ABR) for all bleeding episodes was 1.9 (mean 3.9, range 0 to 42.1).

Fifty-three (53) of 94 subjects received XYNTHA for on-demand treatment for a total of 187 bleeding episodes ( Table 3 ). Seven of these bleeding episodes occurred in subjects prior to switching to a prophylaxis treatment regimen. One hundred ten of one hundred eighty (110/180) bleeds (61.1%) occurred ≤ 48 hours after the last dose and 38.9% (70 of 180 bleeds) occurred > 48 hours after the last dose.

The majority of bleeds reported to occur ≤ 48 hours after the last prophylaxis dose were traumatic (64 of 110 bleeds; 58.2%). Forty-two (42) of 70 bleeds (60%) reported to occur > 48 hours after the last prophylaxis dose were spontaneous. The on-demand treatment dosing regimen was determined by the investigator.

The median dose for on-demand treatment was

30.6IU/kg (range, 6.4 to

74.4IU/kg). Table 3: Time Interval Between Last Prophylaxis Dose of XYNTHA and Start of Bleed a Bleeds with unknown start time or bleeds in which previous prophylaxis dose was before the start of the safety and efficacy period of the study. Abbreviations: Spon = spontaneous new bleed; Traum = new bleed due to trauma; hrs = hours. ≤ 24 hrs > 24 ≤ 48 hrs > 48 ≤ 72 hrs > 72 hrs Unknown a Total Bleeding Episodes Spon Traum Spon Traum Spon Traum Spon Traum Spon Traum 13 20 33 44 24 12 18 16 3 4 187 The majority of bleeding episodes (173/187; 92.5%) resolved with 1 or 2 infusions.

Subjects rated the outcomes of infusions on a pre-specified four (4) point hemostatic efficacy scale. One hundred thirty-two (132) of 187 bleeding episodes (70.6%) treated with XYNTHA were rated excellent or good in their response to initial treatment, 45 (24.1%) were rated moderate. Five [5] (2.7%) were rated no response, and 5 (2.7%) were not rated.

Table 4: Summary of Response to Infusions to Treat New Bleeding Episode by Number of Infusions Needed for Resolution a Includes 1 infusion with commercial FVIII that occurred before routine prophylaxis began. ----Number of Infusions (%)---- Response to 1st Infusion 1 2 3 4 > 4 Total Number of Bleeds Excellent 42 (95.5) 2 (4.5) 0 (0.0) 0 (0.0) 0 (0.0) 44 Good 69 (78.4) 16 (18.2) 3 (3.4) 0 (0.0) 0 (0.0) 88 Moderate 24 (53.3) 16 (35.6) 2 (4.4) 0 (0.0) 3 (6.7) 45 No Response 0 (0.0) 0 (0.0) 2 (40.0) 2 (40.0) 1 (20.0) 5 Not Assessed 4 (80.0) 0 (0.0) 0 (0.0) 1 (20.0) 0 (0.0) 5 a Total 139 (74.3) 34 (18.2) 7 (3.7) 3 (1.6) 4 (2.1) 187 In an on-going, open-label study of XYNTHA in surgical prophylaxis, 21 of at least 25 evaluable PTPs with severe or moderately severe (FVIII:C ≤ 2%) hemophilia A undergoing major surgical procedures received XYNTHA.

One (1) subject received XYNTHA for a pre-surgery ph… [Excerpted — this section continues on DailyMed.]

🧪 Nonclinical Toxicology 164 words ▾

13 NONCLINICAL TOXICOLOGY

13.1Carcinogenesis, Mutagenesis, Impairment of Fertility No studies have been conducted with XYNTHA to assess its mutagenic or carcinogenic potential. XYNTHA has been shown to be comparable to the predecessor product with respect to its biochemical and physicochemical properties, as well as its non-clinical in vivo pharmacology and toxicology. By inference, predecessor product and XYNTHA would be expected to have equivalent mutagenic and carcinogenic potential.

The predecessor product has been shown to be nongenotoxic in the mouse micronucleus assay. No studies have been conducted in animals to assess impairment of fertility or fetal development.

13.2Animal Toxicology and/or Pharmacology Preclinical studies evaluating XYNTHA in hemophilia A dogs without inhibitors demonstrated safe and effective restoration of hemostasis. XYNTHA demonstrated a toxicological profile that was similar to the toxicological profile observed with the predecessor product. Toxicity associated with XYNTHA was primarily associated with anti-FVIII neutralizing antibody generation first detectable at 15 days of repeat dosing in high (approximately 735 IU/kg/day) level-dosed, non-human primates.

📄 Carcinogenesis, Mutagenesis, Impairment of Fertility 94 words ▾

13.1Carcinogenesis, Mutagenesis, Impairment of Fertility No studies have been conducted with XYNTHA to assess its mutagenic or carcinogenic potential. XYNTHA has been shown to be comparable to the predecessor product with respect to its biochemical and physicochemical properties, as well as its non-clinical in vivo pharmacology and toxicology. By inference, predecessor product and XYNTHA would be expected to have equivalent mutagenic and carcinogenic potential.

The predecessor product has been shown to be nongenotoxic in the mouse micronucleus assay. No studies have been conducted in animals to assess impairment of fertility or fetal development.

📚 References ~2 min read ▾

15 REFERENCES Nilsson IM, Berntorp EE and Freiburghaus C. Treatment of patients with factor VIII and IX inhibitors. Thromb Haemost .

1993;70(1):56-59. Hoyer LW. Hemophilia A.

N Engl J Med . 1994;330:38-47. Juhlin F.

Stability and Compatibility of Reconstituted Recombinant Factor VIII SQ, 250 IU/ml, in a System for Continuous Infusion. Pharmacia Document 9610224, 1996. Ehrenforth S, Kreuz W, Scharrer I, et al.

Incidence of development of factor VIII and factor IX inhibitors in hemophiliacs. Lancet . 1992;339:594-598.

Lusher J, Arkin S, Abildgaard CF, Schwartz RS, the Kogenate PUP Study Group. Recombinant factor VIII for the treatment of previously untreated patients with hemophilia A. N Engl J Med .

1993;328:453-459. Bray GL, Gomperts ED, Courter S, et al. A multicenter study of recombinant factor VIII (Recombinate): safety, efficacy, and inhibitor risk in previously untreated patients with hemophilia A.

Blood . 1994;83(9):2428-2435. Kessler C, Sachse K.

Factor VIII:C inhibitor associated with monoclonal-antibody purified FVIII concentrate. Lancet . 1990;335:1403.

Schwartz RS, Abildgaard CF, Aledort LM, et al. Human recombinant DNA-derived antihemophilic factor (factor VIII) in the treatment of hemophilia A. N Engl J Med .

1990;323:1800-1805. White GC II, Courter S, Bray GL, et al. A multicenter study of recombinant factor VIII (Recombinate™) in previously treated patients with hemophilia A.

Thromb Haemost . 1997;77(4):660-667. Gruppo R, Chen H, Schroth P, et al.

Safety and immunogenicity of recombinant factor VIII (Recombinate™) in previously untreated patients: A 7.3 year update. Haemophilia . 1998;4:228 (Abstract No.

291, XXIII Congress of the WFH, The Hague). Scharrer I, Bray GL, Neutzling O. Incidence of inhibitors in haemophilia A patients - a review of recent studies of recombinant and plasma-derived factor VIII concentrates.

Haemophilia . 1999;5:145-154. Abshire TC, Brackmann HH, Scharrer I, et al.

Sucrose formulated recombinant human antihemophilic Factor VIII is safe and efficacious for treatment of hemophilia A in home therapy: Results of a multicenter, international, clinical investigation. Thromb Haemost . 2000;83(6):811-816.

Sandberg H, Almstedt A, Brandt J, Castro VM, Gray E, Holmquist L, et al. Structural and Functional Characterization of B-Domain Deleted Recombinant Factor VIII. Sem Hematol.

2001;38 (Suppl. 4):4-12. Kelley BD, Tannatt M, Magnusson R, Hagelberg S.

Development and Validation of an Affinity Chromatography Step Using a Peptide Ligand for cGMP Production of Factor VIII. Biotechnol Bioeng . 2004;87(3):400-412.

Mann KG and Ziedens KB. Overview of Hemostasis. In: Lee CA, Berntorp EE and Hoots WK, eds.

Textbook of Hemophilia . USA, Blackwell Publishing; 2005:1-4.

📄 Patient Package Insert ~3 min read ▾

FDA-Approved Patient Labeling Patient Product Information (PPI) XYNTHA ( ZIN -tha) [ANTIHEMOPHILIC FACTOR (RECOMBINANT), PLASMA/ALBUMIN-FREE] Please read this Patient Information carefully before using XYNTHA and each time you get a refill. There may be new information. This leaflet does not take the place of talking with your doctor about your medical problems or your treatment.

What is XYNTHA? XYNTHA is an injectable medicine that is used to help control and prevent bleeding in people with hemophilia A. Hemophilia A is also called classic hemophilia.

XYNTHA is not used to treat von Willebrand's disease. What should I tell my doctor before using XYNTHA? Tell your doctor about all of your medical conditions, including if you: are pregnant or planning to become pregnant.

It is not known if XYNTHA may harm your unborn baby. are breastfeeding. It is not known if XYNTHA passes into your milk and if it can harm your baby. Tell your doctor and pharmacist about all of the medicines you take, including all prescription and non-prescription medicines, such as over-the-counter medicines, supplements, or herbal remedies.

How should I infuse XYNTHA? See the step-by-step instructions for infusing XYNTHA at the end of this leaflet. You should always follow the specific instructions given by your doctor.

The steps listed below are general guidelines for using XYNTHA. If you are unsure of the procedures, please call your doctor or pharmacist before using. Call your doctor right away if bleeding is not controlled after using XYNTHA.

Your doctor will prescribe the dose that you should take. Your doctor may need to take blood tests from time to time. Talk to your doctor before traveling.

You should plan to bring enough XYNTHA for your treatment during this time. What if I take too much XYNTHA? Call your doctor if you take too much XYNTHA.

What are the possible side effects of XYNTHA? Allergic reactions may occur with XYNTHA. Call your doctor or get emergency treatment right away if you have any of the following symptoms: wheezing difficulty breathing chest tightness turning blue (look at lips and gums) fast heartbeat swelling of the face faintness rash hives Your body can also make antibodies, called “inhibitors,” against XYNTHA, which may stop XYNTHA from working properly.

Consult with your healthcare provider to make sure you are carefully monitored with blood tests for the development of inhibitors to factor VIII. Some common side effects of XYNTHA are headache, fever, nausea, vomiting, diarrhea, or weakness. These are not all the possible side effects of XYNTHA.

Tell your doctor about any side effect that bothers you or that does not go away. How should I store XYNTHA? Do not freeze XYNTHA and protect from light.

Store the XYNTHA Prefilled Dual-Chamber Syringe in the refrigerator at 36° to 46°F (2° to 8°C). XYNTHA can last at room temperature (below 77°F) for up to 3 months. If you store XYNTHA at room temperature, be careful to write down the date you put XYNTHA at room temperature, so you will know when to throw it away.

There is a space on the carton for you to write the date. Throw away any unused XYNTHA after the expiration date. Infuse XYNTHA within 3 hours after reconstitution or after removal of the grey rubber tip cap from the prefilled dual-chamber syringe.

You may store the reconstituted solution at room temperature prior to infusion. If you have not used it in 3 hours, throw it away. Do not use reconstituted XYNTHA if it is not clear to slightly opalescent and colorless.

Disposal of all XYNTHA materials, whether reconstituted or not, must be done using an appropriate medical waste container. Contact your healthcare professional if you need additional instructions. What else should I know about XYNTHA?

Medicines are sometimes prescribed for purposes other than those listed here. Do not use XYNTHA for a condition for which it is not prescribed. Do not share XYNTHA with other people, even if they have the same symptoms that you have… [Excerpted — this section continues on DailyMed.]

📄 Package Label / Principal Display Panel 175 words ▾

PACKAGE LABEL – PRINCIPAL DISPLAY PANEL – 3000 IU RANGE - LABEL NDC 58394-016-03 Xyntha ® Antihemophilic Factor (Recombinant), Plasma/Albumin-Free For Intravenous Administration. For Factor VIII Replacement Therapy Only Manufactured and Distributed by: Wyeth Pharmaceuticals Inc. Philadelphia, PA 19101, USA US Govt. License No. 3 Made in Sweden Rx only Wyeth ® Principal Display Panel - 3000 IU Range - Label

PACKAGE LABEL – PRINCIPAL DISPLAY PANEL – 3000 IU RANGE – DUAL – CHAMBER SYRINGE NDC 58394-116-03 Xyntha ® Antihemophilic Factor (Recombinant), Plasma/Albumin-Free For IV Administration Dual-Chamber Syringe No Preservatives. Single Use. Refrigerate. Protect from light. Wyeth Pharmaceuticals Inc. Philadelphia, PA 19101 US Govt. License No. 3 For Factor VIII Replacement Rx only Wyeth ® Principal Display Panel - 3000 IU Dual-Chamber Syringe

PACKAGE LABEL – PRINCIPAL DISPLAY PANEL – 3000 IU RANGE - CARTON NDC 58394-016-03 Xyntha ® Antihemophilic Factor (Recombinant), Plasma/Albumin-Free One Single-Use, Prefilled Dual-Chamber Syringe For Intravenous Administration. Plasma-Free Albumin-Free Cell Culture Process For Factor VIII Replacement Therapy Only Rx only Wyeth ® Principal Display Panel - 3000 IU Range Carton

Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA. Prefer the government’s original formatting? View this label on DailyMed ↗

Reported adverse events (FAERS)

Read carefully: FAERS reports are voluntary and unverified. Counts are not incidence, do not establish causation, are subject to reporting bias, and cannot be used to compare one drug to another. Shown for signal context only. Reports for Antihemophilic factor (recombinant) — the ingredient across all brands.

Top reported reactions

Haemorrhage531
Traumatic Haemorrhage120
Arthralgia82
Fall80
Limb Injury76
Joint Injury61
Epistaxis58

Reporter sex

1,318 reports
Male · 95%
Female · 5%

Serious outcomes

Death3
Reports over time (by year) — tap or hover for the count & year
2020 2022 2024 2026 559 0
Most recent year is provisional (FAERS lags ~3 months).
Where does this data come from?
Adverse-event reports from the FDA Adverse Event Reporting System (FAERS) via openFDA. FAERS reports are voluntary and unverified — counts are not incidence and don’t establish causation.

About this NDC listing & data coverage

Kit / multi-component package

Kit / multi-component package

This NDC identifies a kit — a package containing more than one component. Structured data (pricing, ingredients, equivalents) is often reported per component rather than for the kit NDC itself, which can make this page look thinner than the components' own pages.

What data is (and isn’t) available for this NDC — tap to expand
NDC identity (package / product / labeler codes) ✓ Available
Labeler ✓ Available
Product & package description ✓ Available
Marketing category & status ✓ Available
Active ingredient / dosage form / route ✓ Available
FDA label (SPL via DailyMed) ✓ Available
Package photos ✓ Available
Inactive ingredients (structured) — Not published for this NDC The labeler did not submit a structured excipient list, or no SPL is available.
NADAC pharmacy acquisition price (CMS) — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey.
Orange Book / therapeutic-equivalence data — Not published for this NDC Applies only to products approved under an NDA/ANDA; many listings are out of scope.
HCPCS J-code billing crosswalk ✓ Available
Medicaid utilization (CMS SDUD) — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold.
“Not published” reflects what the public FDA / CMS / NLM sources provide for this exact package code — it is a property of the data feeds, not a judgment about the product.

Questions about this listing

Why is there no price listed?
The pricing shown on our NDC pages comes from CMS NADAC, a voluntary survey of retail community pharmacy invoices. CMS does not publish a NADAC for every NDC — packages outside the retail survey (institutional and hospital products, bulk packages, discontinued items, and many OTC items) may never receive one. A missing price reflects the survey's scope, not this product's actual cost, and does not mean the product is free or unavailable.
Is the NDC printed on the package the same as the 11-digit billing NDC?
Yes, they identify this exact package in different formats. The form printed on the packaging and shown on DailyMed is the one the FDA registered. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero and the dashes are dropped. The Identity section at the top of this page lists each form of this code.
Is this package still being marketed?
Yes, per the latest FDA NDC Directory data on this page: this package is listed as actively marketed, with no marketing end date reported by Wyeth BioPharma Division of Wyeth Pharmaceuticals LLC. Listing status can change — the directory data on this page refreshes weekly.
Who lists this product with the FDA?
Wyeth BioPharma Division of Wyeth Pharmaceuticals LLC is the labeler of record for this NDC — the company under whose FDA-assigned code the package is listed. The labeler may be the manufacturer itself or a distributor marketing the product under its own code.
Does this product have a billing J-code?
Yes — this NDC cross-references HCPCS code J7185 for medical-claim billing (typically used when a product is administered in a clinical setting rather than dispensed at a retail pharmacy). See the Billing section on this page.
This page identifies an FDA-listed package (the NDC) and reports public regulatory and pricing data about the listing. It is reference information, not a medical recommendation — talk to your pharmacist or prescriber about your own medication.
Where does this data come from?
Listing facts (marketing category, packager status, marketing dates) from the FDA openFDA NDC Directory; label availability from DailyMed; pricing coverage from CMS NADAC; equivalence scope from the FDA Orange Book.
For educational and professional reference only — not medical advice. Pricing reflects published NADAC and CMS ASP (free public data) and may differ from your acquisition cost; always verify before billing or dispensing.