HomeNDC LookupIngredientsFibrinogen Human › 63833-0891-51
RiaSTAP FIBRINOGEN HUMAN 1300 mg/50mL Injection, Powder, Lyophilized, For Solution — NDC 63833-0891-51 package photo

RiaSTAP FIBRINOGEN HUMAN 1300 mg/50mL Injection, Powder, Lyophilized, For Solution

by CSL Behring GmbH · 1 VIAL, SINGLE-USE in 1 CARTON (63833-891-51) / 50 mL in 1 VIAL, SINGLE-USE (63833-891-90)
NDC 63833-0891-51
🏷️ FDA NDC (as labeled) 63833-891-51 billing pads the product segment with a zero
Brand On market Non-controlled
🗂️ Data synced Sep 10, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →

🆔 Identity & classification

FDA NDC (as labeled) 63833-891-51
Product NDC 63833-891
11-digit billing NDC 63833089151
NCPDP billing unit EA — each (per item)
Application # BLA125317
SPL Set ID 903dc8d0-39da-462c-9dac-004e0c7a26cc
Established class (EPC) Human Blood Coagulation Factor
Physiologic effect Increased Coagulation Activity
Chemical class Blood Coagulation Factors
DEA schedule Non-controlled
Marketing category BLA
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2009-01-16
Route INTRAVENOUS
Dosage form INJECTION, POWDER, LYOPHILIZED, FOR SOLUTION
Substance FIBRINOGEN HUMAN
GPI-14 85100035002120
GPI class RiaSTAP
GCN Seq No 065073
GCN 21666
HICL code 012033
Ingredient (HICL) Fibrinogen
HIC1 code M
Therapeutic class — broad (HIC1) Blood
HIC2 code M9
Therapeutic class — intermediate (HIC2) Drugs Given To Alter Blood Coagulation
HIC3 code M9D
Therapeutic class — specific (HIC3) Antifibrinolytic Agents
AHFS code 20:28.16.00
AHFS class Hemostatics
FDB label name RIASTAP VIAL
FDB brand name Riastap
Legend status F — Federal legend — prescription drug or device
Biologic (Purple Book) 351(a)
Why two NDCs? The FDA registers this code as 63833-891-51 — 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 → 63833-0891-51. 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.

🏭 Manufacturer & labeler

LabelerCSL Behring GmbH
FDA applicationBLA125317 (BLA)
Labeler code63833
First marketedJan 2009
Product typePlasma Derivative
Portfolio11 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.

🩺 Clinical

Label name RIASTAP VIAL Ingredient Fibrinogen
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.

🧪 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.

💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.

  • 700 mg / 50 mL UNII ZIF514RVZR
    A protein derived from human blood plasma. In medicines, it acts as a stabilizer and binder, helping maintain drug potency and form, and may improve how the medication disperses or dissolves in the body.
  • 660 mg / 50 mL UNII F7LTH1E20Y
    Arginine hydrochloride is an amino acid salt used as a buffer and pH adjuster in medicines. It helps maintain the correct acidity level to keep the drug stable and effective.
  • UNII QTT17582CB
    A strong acid used to adjust and maintain the proper pH level in liquid medicines, ensuring stability and preventing breakdown of active ingredients.
  • 350 mg / 50 mL UNII 451W47IQ8X
    Sodium chloride is common table salt. It's used in medicines as a buffer to maintain proper pH, as a filler to add bulk, or to adjust the osmotic balance in liquid formulations.
  • 100 mg / 50 mL UNII 1Q73Q2JULR
    Sodium citrate is a salt derived from citric acid. It works as a buffer to maintain the medicine's pH level and may also help improve taste or act as a preservative in the formulation.
  • UNII 55X04QC32I
    A strong alkaline chemical used to adjust and maintain the pH balance of liquid medicines. It helps keep the medicine stable and ensures it stays effective during storage.
  • UNII 059QF0KO0R
    Water is a liquid solvent that dissolves and mixes ingredients together in liquid medicines, syrups, and injections. It helps distribute the active drug evenly throughout the product.

7 inactive ingredients listed in the exact product block matched to this NDC.

Where does this data come from?
Data sourced from official FDA Structured Product Labeling (SPL) via DailyMedingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.

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.

💲 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 mLPer 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 · J7178 $1.488 / J7178 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)63833-891-51
11-digit billing NDC63833-0891-51
Format5-3-2 as registered → padded to 5-4-2 for billing (zero added to the product segment)
HCPCS J-codeJ7178
DescriptorInjection, human fibrinogen concentrate, not otherwise specified, 1 mg
Billing units / pkg1 units
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.

🔁 Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
RiaSTAP 1300 mg/50mLthis 63833-0891-51 CSL 1 vial 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

🏛️
2009
First FDA approval
Jan 2009
📍
2026
Currently FDA-listed
17 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.

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.

📦 Packaging — all sizes for this product

Package NDCDescription Marketing startStatus
63833-0891-51 You're viewing this 1 VIAL, SINGLE-USE in 1 CARTON (63833-891-51) / 50 mL in 1 VIAL, SINGLE-USE (63833-891-90) 2009-01-16 Active

🧭 About this NDC listing & data coverage

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) ✓ 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 FDA registers it as 63833-891-51, which is what is printed on the packaging and shown on DailyMed. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero: 63833-0891-51, written without dashes as 63833089151. The Identity section at the top of this page lists every form of this code.
What do the three segments of this NDC mean?
In 63833-0891-51, the first segment (63833) is the labeler code FDA assigned to CSL Behring GmbH; the middle segment (0891) identifies this specific product — its ingredient, strength, and dosage form; and the last segment (51) identifies this exact package size and type. Together they name one specific package of one specific product.
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 CSL Behring GmbH. Listing status can change — the directory data on this page refreshes weekly.
Who lists this product with the FDA?
CSL Behring GmbH 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 J7178 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.

📄 Full FDA label FDA SPL

The complete FDA label for this product, verbatim, section by section. Jump with a chip, search within the label, or expand everything.
🎯 Indications and Usage 67 words

1 INDICATIONS AND USAGE RiaSTAP ® , Fibrinogen Concentrate (Human) is indicated for the treatment of acute bleeding episodes in patients with congenital fibrinogen deficiency, including afibrinogenemia and hypofibrinogenemia. RiaSTAP is not indicated for dysfibrinogenemia. RiaSTAP, Fibrinogen Concentrate (Human) is indicated for the treatment of acute bleeding episodes in patients with congenital fibrinogen deficiency, including afibrinogenemia and hypofibrinogenemia ( 1 ).

RiaSTAP is not indicated for dysfibrinogenemia.

⏱️ Dosage and Administration ~2 min read

2 DOSAGE AND ADMINISTRATION For intravenous use only. Reconstitute prior to use. Should be administered under the supervision of a physician .

For intravenous use only. Reconstitute prior to use. Should be administered under the supervision of a physician.

Dose (mg/kg body weight) = [Target level (mg/dL) - measured level (mg/dL)] 1.7 (mg/dL per mg/kg body weight) Dose when fibrinogen level is unknown: 70 mg/kg body weight ( 2.1 ). Monitoring of patient's fibrinogen level is recommended during treatment. A target fibrinogen level of 100 mg/dL should be maintained until hemostasis is obtained.

The injection rate should not exceed 5 mL per minute ( 2.3 ).

2.1Treatment of Congenital Fibrinogen Deficiency RiaSTAP dosing, duration of dosing and frequency of administration should be individualized based on the extent of bleeding, laboratory values, and the clinical condition of the patient. RiaSTAP dose when baseline fibrinogen level is known Dose should be individually calculated for each patient based on the target plasma fibrinogen level based on the type of bleeding, actual measured plasma fibrinogen level and body weight , using the following formula (see Pharmacokinetics [12.3] ) : [Target level (mg/dL) - measured level (mg/dL)] 1.7 (mg/dL per mg/kg body weight) RiaSTAP dose when baseline fibrinogen level is not known If the patient's fibrinogen level is not known, the recommended dose is 70 mg per kg of body weight administered intravenously.

Monitoring of patient's fibrinogen level is recommended during treatment with RiaSTAP. A target fibrinogen level of 100 mg/dL should be maintained until hemostasis is obtained.

2.2Preparation and Reconstitution The procedures below are provided as general guidelines for preparation and reconstitution of RiaSTAP. Do not use RiaSTAP beyond the expiration date. RiaSTAP contains no preservative.

Use aseptic technique when preparing and reconstituting RiaSTAP. Reconstitute RiaSTAP at room temperature as follows: Remove the cap from the product vial to expose the central portion of the rubber stopper. Clean the surface of the rubber stopper with an antiseptic solution and allow it to dry.

Using an appropriate transfer device or syringe, transfer 50 mL of Sterile Water for Injection into the product vial. Gently swirl the product vial to ensure the product is fully dissolved. Do not shake the vial.

After reconstitution, the RiaSTAP solution should be colorless and clear to slightly opalescent. Inspect visually for particulate matter and discoloration prior to administration. Do not use if the solution is cloudy or contains particulates.

Do not freeze RiaSTAP solution. Discard partially used vials. RiaSTAP is stable for 24 hours after reconstitution when stored at 20-25ºC and should be administered within this time period.

2.3Administration Do not mix RiaSTAP with other medicinal products or intravenous solutions, and should be administered through a separate injection site. Use aseptic technique when administering RiaSTAP. Administer RiaSTAP at room temperature by slow intravenous injection at a rate not exceeding 5 mL per minute.

💊 Dosage Forms and Strengths 87 words

3 DOSAGE FORMS AND STRENGTHS RiaSTAP is available as a single-use vial containing 900 mg to 1300 mg lyophilized fibrinogen concentrate powder for reconstitution with 50 mL of Sterile Water for Injection. The actual fibrinogen potency for each lot is printed on the vial label and carton. RiaSTAP is available as a single-use vial containing 900 mg to 1300 mg lyophilized fibrinogen concentrate powder for reconstitution ( 3 ).

The actual fibrinogen potency for each lot is printed on the vial label and carton ( 3 ).

Contraindications 33 words

4 CONTRAINDICATIONS RiaSTAP is contraindicated in individuals who have manifested severe immediate hypersensitivity reactions, including anaphylaxis to RiaSTAP or its components. Anaphylactic or severe reactions to RiaSTAP or its components ( 4 ).

⚠️ Warnings and Cautions ~2 min read

5 WARNINGS AND PRECAUTIONS Monitor patients for early signs of allergic or hypersensitivity reactions and if necessary, discontinue administration and institute appropriate treatment ( 5.1 ). Thrombotic events have been reported in patients receiving RiaSTAP. Weigh the benefits of administration versus the risks of thrombosis ( 5.2 ) RiaSTAP is made from pooled human plasma.

Products made from human plasma may contain infectious agents, e.g., viruses and, theoretically, the Creutzfeldt-Jakob disease (CJD) agent ( 5.3 ).

5.1Allergic Reactions Allergic reactions may occur. If symptoms of allergic or early signs of hypersensitivity reactions (including hives, generalized urticaria, tightness of the chest, wheezing, hypotension, and anaphylaxis) occur, immediately discontinue administration ( see Patient Counseling Information [17.1] ). The treatment required depends on the nature and severity of the reaction.

5.2Thrombosis Thrombosis may occur spontaneously in patients with congenital fibrinogen deficiency with or without the use of fibrinogen replacement therapy. 1 Thromboembolic events have been reported in patients treated with RiaSTAP. Weigh the benefits of RiaSTAP administration versus the risk of thrombosis. Patients receiving RiaSTAP should be monitored for signs and symptoms of thrombosis. ( see Patient Counseling Information [17.2] )

5.3Transmissible Infectious Agents RiaSTAP is made from human plasma. Products made from human plasma may contain infectious agents (e.g., viruses and theoretically the Creutzfeldt-Jakob disease agent [CJD]) that can cause disease. The risk that such products will transmit an infectious agent has been reduced by screening plasma donors for prior exposure to certain viruses, by testing for the presence of certain current virus infections, and by a process demonstrated to inactivate and/or remove certain viruses during manufacturing.

(see Description [11] ) . Despite these measures, such products may still potentially transmit disease. There is also the possibility that unknown infectious agents may be present in such products (see Patient Counseling Information [17.3] ) .

All infections thought by a physician possibly to have been transmitted by this product should be reported by the physician or other healthcare provider to CSL Behring at 1-866-915-6958.

🤒 Adverse Reactions ~1 min read

6 ADVERSE REACTIONS The most serious adverse reactions that have been reported in clinical studies or through postmarketing surveillance following RiaSTAP treatment are allergic-anaphylactic reactions and thromboembolic episodes, including myocardial infarction, pulmonary embolism, deep vein thrombosis, and arterial thrombosis. The most common adverse reactions that have been reported in clinical studies or through postmarketing surveillance following RiaSTAP treatment are allergic reactions and generalized reactions such as chills, fever, nausea, and vomiting.

The most serious adverse reactions observed are thrombotic episodes (pulmonary embolism, myocardial infarction, deep vein thrombosis) and anaphylactic reactions. The most common adverse reactions observed in clinical studies (frequency >1%) were fever and headache ( 6 ). To report SUSPECTED ADVERSE REACTIONS, contact CSL Behring at 1-866-915-6958 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

6.1Clinical Studies Experience Because clinical studies are conducted under widely varying conditions, adverse reaction rates observed cannot be directly compared to rates in other clinical studies and may not reflect the rates observed in practice. The most common adverse reactions observed in more than one subject in clinical studies (frequency >1%) were fever and headache.

6.2Postmarketing Experience Because postmarketing reporting of adverse reactions is voluntary and from a population of uncertain size, it is not always possible to reliably estimate the frequency of these reactions or establish a causal relationship to product exposure. Adverse reactions reported in patients receiving RiaSTAP for treatment of fibrinogen deficiency include allergic-anaphylactic reactions (including rash, dyspnea, etc.), general reactions such as chills, fever, nausea, vomiting and thromboembolic complications such as myocardial infarction, pulmonary embolism, and deep vein thrombosis.

The following adverse reactions, identified by system organ class, have shown a possible causal relationship with RiaSTAP. Allergic-anaphylactic reactions: anaphylaxis , dyspnea, rash Cardiovascular: thromboembolism, pulmonary embolism ( see Warnings and Precautions, Thrombosis [5.2] ) General/Body as a Whole: chills, fever, nausea, vomiting

👥 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 ). Pediatric: Shorter half life and faster clearance than in adults has been observed. These results are difficult to interpret because of the limited number of subjects (n=4)( 8.4 ).

8.1Pregnancy Pregnancy Category C. Animal reproduction studies have not been conducted with RiaSTAP. It is not known whether RiaSTAP can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. RiaSTAP should be used during pregnancy only if clearly needed.

8.2Labor and Delivery RiaSTAP has not been studied for use during labor and delivery.

8.3Nursing Mothers RiaSTAP has not been studied in nursing mothers with congenital fibrinogen deficiency.

8.4Pediatric Use RiaSTAP studies have included subjects below the age of 16 years. In the pharmacokinetic study (see Pharmacokinetics [12.3] ) , 2 children (8 and 11 years), 3 adolescents (12, 14 and 16 years), were studied. Subjects less than 16 years of age (n = 4) had shorter half-life (69.9 ± 8.5h) and faster clearance (0.7 ± 0.1 mg/L) compared to adults (half-life: 82.3 ± 20.0h, clearance: 0.53 ± 0.1 mg/L).

The number of subjects less than 16 years of age in this study limits statistical interpretation.

8.5Geriatric Use The safety and efficacy of RiaSTAP in the geriatric population has not been studied. There were an insufficient number of subjects in this age group to determine whether they respond differently from younger subjects.

🤰 Pregnancy 45 words

8.1Pregnancy Pregnancy Category C. Animal reproduction studies have not been conducted with RiaSTAP. It is not known whether RiaSTAP can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. RiaSTAP should be used during pregnancy only if clearly needed.

🧒 Pediatric Use 89 words

8.4Pediatric Use RiaSTAP studies have included subjects below the age of 16 years. In the pharmacokinetic study (see Pharmacokinetics [12.3] ) , 2 children (8 and 11 years), 3 adolescents (12, 14 and 16 years), were studied. Subjects less than 16 years of age (n = 4) had shorter half-life (69.9 ± 8.5h) and faster clearance (0.7 ± 0.1 mg/L) compared to adults (half-life: 82.3 ± 20.0h, clearance: 0.53 ± 0.1 mg/L).

The number of subjects less than 16 years of age in this study limits statistical interpretation.

🧓 Geriatric Use 37 words

8.5Geriatric Use The safety and efficacy of RiaSTAP in the geriatric population has not been studied. There were an insufficient number of subjects in this age group to determine whether they respond differently from younger subjects.

🧬 Clinical Pharmacology ~2 min read

12 CLINICAL PHARMACOLOGY

12.1Mechanism of Action Fibrinogen (factor I) is a soluble plasma glycoprotein with a molecular weight of about 340 kDa. The native molecule is a dimer and consists of three pairs of polypeptide chains (Aα, Bβ and γ). Fibrinogen is a physiological substrate of three enzymes: thrombin, factor XIIIa, and plasmin.

During the coagulation process, thrombin cleaves the Aα and Bβ chains releasing fibrinopeptides A and B (FPA and FPB, respectively). 2 FPA is separated rapidly and the remaining molecule is a soluble fibrin monomer (fibrin I). The slower removal of FPB results in formation of fibrin II that is capable of polymerization that occurs by aggregation of fibrin monomers.

2 The resulting fibrin is stabilized in the presence of calcium ions and by activated factor XIII, which acts as a transglutaminase. Factor XIIIa-induced cross-linking of fibrin polymers renders the fibrin clot more elastic and more resistant to fibrinolysis. 3 Cross-linked fibrin is the end result of the coagulation cascade, and provides tensile strength to a primary hemostatic platelet plug and structure to the vessel wall.

12.2Pharmacodynamic Action Administration of RiaSTAP to patients with congenital fibrinogen deficiency replaces the missing, or low coagulation factor. Normal levels are in the range of 200 to 450 mg/dL. 4

12.3Pharmacokinetics A prospective, open label, uncontrolled, multicenter pharmacokinetic study was conducted in 5 females and 9 males with congenital fibrinogen deficiency (afibrinogenemia), ranging in age from 8 to 61 years (2 children, 3 adolescents, 9 adults). Each subject received a single intravenous dose of 70 mg/kg RiaSTAP. Blood samples were drawn from the patients to determine the fibrinogen activity at baseline and up to 14 days after the infusion.

The pharmacokinetic parameters of RiaSTAP are summarized in Table 2. No statistically relevant difference was observed between males and females for fibrinogen activity. Subjects less than 16 years of age (n=4) had shorter half-life (69.9 ± 8.5) and faster clearance (0.73 ± 0.14) compared to subjects >16 years of age.

The number of subjects less than 16 years of age in this study limits statistical interpretations. The incremental in vivo recovery (IVR) was determined from levels obtained up to 4 hours post-infusion. The median incremental IVR was 1.7 mg/dL (range 1.30 – 2.73 mg/dL) increase per mg/kg.

The median in vivo recovery indicates that a dose of 70 mg/kg will increase patients' fibrinogen plasma concentration by approximately 120 mg/dL. The pharmacokinetic analysis using fibrinogen antigen data (ELISA) was concordant with the fibrinogen activity (Clauss assay). Table 2: Pharmacokinetic Parameters (n=14) for Fibrinogen Activity Parameters Mean ± SD (range) Half-life [hours] 78.7 ± 18.13 (55.73-117.26) C max [mg/dL] 140 ± 27 (100-210) AUC for dose of 70 mg/kg [mg*hr/mL] 124.3 ± 24.16 (81.73-156.40) Clearance [mL/h/kg] 0.59 ± 0.13 (0.45-0.86) Mean residence time [hours] 92.8 ± 20.11 (66.14-126.44) Volume of distribution at steady state [mL/kg] 52.7 ± 7.48 (36.22-67.67)

🧬 Mechanism of Action 176 words

12.1Mechanism of Action Fibrinogen (factor I) is a soluble plasma glycoprotein with a molecular weight of about 340 kDa. The native molecule is a dimer and consists of three pairs of polypeptide chains (Aα, Bβ and γ). Fibrinogen is a physiological substrate of three enzymes: thrombin, factor XIIIa, and plasmin.

During the coagulation process, thrombin cleaves the Aα and Bβ chains releasing fibrinopeptides A and B (FPA and FPB, respectively). 2 FPA is separated rapidly and the remaining molecule is a soluble fibrin monomer (fibrin I). The slower removal of FPB results in formation of fibrin II that is capable of polymerization that occurs by aggregation of fibrin monomers.

2 The resulting fibrin is stabilized in the presence of calcium ions and by activated factor XIII, which acts as a transglutaminase. Factor XIIIa-induced cross-linking of fibrin polymers renders the fibrin clot more elastic and more resistant to fibrinolysis. 3 Cross-linked fibrin is the end result of the coagulation cascade, and provides tensile strength to a primary hemostatic platelet plug and structure to the vessel wall.

📦 How Supplied / Storage and Handling 109 words

16 HOW SUPPLIED/STORAGE AND HANDLING RiaSTAP is supplied in a single-use vial. Each carton contains one vial of RiaSTAP. The components used in the packaging for RiaSTAP are latex-free.

The actual potency of fibrinogen concentrate in milligram (mg) is stated on each RiaSTAP vial label and carton. The following dosage form is available: NDC Number RiaSTAP Vial 63833-891-51 Approximately 1 g (900 – 1300 mg) When stored at temperatures of 2-25°C (36-77°F), RiaSTAP is stable for the period indicated by the expiration date on the carton and vial label (up to 30 months). Keep RiaSTAP in its original carton until ready to use.

Do not freeze. Protect from light.

📦 Storage and Handling 44 words

When stored at temperatures of 2-25°C (36-77°F), RiaSTAP is stable for the period indicated by the expiration date on the carton and vial label (up to 30 months). Keep RiaSTAP in its original carton until ready to use. Do not freeze. Protect from light.

📋 Description ~2 min read

11 DESCRIPTION RiaSTAP is a heat-treated, lyophilized fibrinogen (coagulation factor I) powder made from pooled human plasma. Each vial contains 900 to 1300 mg fibrinogen, 400 to 700 mg human albumin, 375 to 660 mg L-arginine hydrochloride, 200 to 350 mg sodium chloride and 50 to 100 mg sodium citrate. Sodium hydroxide and hydrochloric acid may have been used to adjust the pH.

All plasma used in the manufacture of RiaSTAP is tested using FDA-licensed serological assays for hepatitis B surface antigen and antibodies to HIV-1/2 and HCV. Additionally, the plasma is tested with FDA-licensed Nucleic Acid Testing (NAT) for HCV and HIV-1 and found to be non-reactive (negative). For HBV, an investigational NAT procedure is used; however, the significance of a negative result has not been established.

In addition, the plasma has been tested by NAT for HAV and B19V. Only plasma that passed virus screening is used for production, and the limit for B19V in the fractionation pool is set not to exceed 10 4 IU of B19V DNA per mL. RiaSTAP is manufactured from cryoprecipitate into a glycine precipitate, which is then further purified by multiple precipitation/adsorption steps.

The manufacturing process has been demonstrated to reduce the risk of virus transmission in an additive manner: cryoprecipitation, Al(OH) 3 adsorption/glycine precipitation/Al(OH) 3 adsorption, heat treatment (+60ºC for 20 hours in an aqueous solution), and two subsequent glycine precipitation steps (initial and main glycine precipitation steps). These steps have been validated independently in a series of in vitro experiments for their capacity to inactivate and/or remove both enveloped and non-enveloped viruses. Table 1 shows the virus clearance during the manufacturing process for RiaSTAP, expressed as the mean log 10 reduction factor (LRF).

Table 1: Cumulative (Log 10 ) Virus Inactivation/Reduction in RiaSTAP Manufacturing Step Virus Reduction Factor (log 10 ) Enveloped viruses Non-enveloped viruses HIV BVDV WNV HSV-1 PRV HAV CPV B19V B19V, human parvovirus B19, the virus elimination studies for parvovirus B19 employed a novel experimental infectivity assay utilizing clone of cell line UT7 that contains erythropoietic progeny cells. Virus titer was determined using an immunofluorescence-based detection method. BVDV, bovine viral diarrhea virus, model for HCV WNV, West Nile virus HSV-1, herpes simplex virus type 1 CPV, canine parvovirus, model for B19V n.d., not done Cryoprecipitation n.d. n.d. n.d.

1.6PRV – as HSV-1 a herpes virus – is reduced by cryoprecipitation by 1.6 log 10 2.4 2.8 n.d. Al(OH) 3 adsorption/ glycine precipitation/ Al(OH) 3 adsorption (2.8) Not included in the calculation of the cumulative virus reduction factor. (1.5) n.d. (0.9) n.d. Heat Treatment ≥ 5.7 ≥ 9.1 ≥ 8.3 ≥ 8.1 ≥ 4.3 1.6 ≥

4.5Glycine precipitation (two subsequent steps) 3.9 2.1 n.d. 1.0 (1.0) (1.6) n.d. Cumulative virus reduction (log 10 ) ≥ 9.6 ≥ 11.2 ≥ 8.3 ≥ 9.1 1.6 ≥ 6.7 4.4 ≥ 4.5

💬 Information for Patients 213 words

17 PATIENT COUNSELING INFORMATION

17.1Allergic Reactions Inform patients of the early signs of allergic or hypersensitivity reactions to RiaSTAP, including hives, chest tightness, wheezing, hypotension, and anaphylaxis ( see Warnings and Precautions [5.1] ). Advise them to notify their physician immediately if they experience any of these symptoms.

17.2Thrombosis Inform patients that thrombosis with or without embolization may be due to the underlying fibrinogen deficiency and has been reported with the use of RiaSTAP. Any symptoms of thrombotic events such as unexplained pleuritic, chest and/or leg pain or edema, hemoptysis, dyspnea, tachypnea or unexplained neurologic symptoms should be reported to their physician immediately (see Warnings and Precautions [5.2] ) .

17.3Transmissible Infectious Agents Inform patients that RiaSTAP is made from human plasma (part of the blood) and may contain infectious agents that can cause disease (e.g., viruses and, theoretically, the CJD agent). Explain the risk that RiaSTAP may transmit an infectious agent has been reduced by screening the plasma donors, by testing the donated plasma for certain virus infections, and by a process demonstrated to inactivate and/or remove certain viruses during manufacturing ( see Warnings and Precautions [5.3] ).

Symptoms of a possible virus infection include headache, fever, nausea, vomiting, weakness, malaise, diarrhea, or, in the case of hepatitis, jaundice.

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