AT386338B - METHOD FOR PRODUCING STORAGE-STABLE, INTRAVENOES TO BE ADMINISTERED, AQUEOUS PROTEIN SOLUTIONS - Google Patents

METHOD FOR PRODUCING STORAGE-STABLE, INTRAVENOES TO BE ADMINISTERED, AQUEOUS PROTEIN SOLUTIONS

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Publication number
AT386338B
AT386338B AT0392483A AT392483A AT386338B AT 386338 B AT386338 B AT 386338B AT 0392483 A AT0392483 A AT 0392483A AT 392483 A AT392483 A AT 392483A AT 386338 B AT386338 B AT 386338B
Authority
AT
Austria
Prior art keywords
solution
stable
protein
administered
protein solutions
Prior art date
Application number
AT0392483A
Other languages
German (de)
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ATA392483A (en
Original Assignee
Schwab & Co Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Schwab & Co Gmbh filed Critical Schwab & Co Gmbh
Priority to AT0392483A priority Critical patent/AT386338B/en
Publication of ATA392483A publication Critical patent/ATA392483A/en
Application granted granted Critical
Publication of AT386338B publication Critical patent/AT386338B/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K16/00Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
    • C07K16/06Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies from serum
    • C07K16/065Purification, fragmentation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K35/00Medicinal preparations containing materials or reaction products thereof with undetermined constitution
    • A61K35/12Materials from mammals; Compositions comprising non-specified tissues or cells; Compositions comprising non-embryonic stem cells; Genetically modified cells
    • A61K35/14Blood; Artificial blood
    • A61K35/16Blood plasma; Blood serum

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Cell Biology (AREA)
  • Hematology (AREA)
  • Organic Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Immunology (AREA)
  • Epidemiology (AREA)
  • Veterinary Medicine (AREA)
  • Virology (AREA)
  • Developmental Biology & Embryology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Biotechnology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Zoology (AREA)
  • Biochemistry (AREA)
  • Biophysics (AREA)
  • Genetics & Genomics (AREA)
  • Molecular Biology (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Preparation (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



   Die Erfindung betrifft die Herstellung von lagerstabilen, intravenös zu verabreichenden, wässerigen Proteinlösungen, insbesondere von Infusionslösungen, aus Humanplasma oder Human- serum. 



   Die intravenöse Verarbeitung von Proteinlösungen findet in der Medizin zu verschiedenen
Zwecken verbreitet Anwendung. Sie dient einerseits zu Zwecken der parenteralen Ernährung, dient aber anderseits auch zur unterstützenden Behandlung bei Infekten oder zur Behandlung von Schockzuständen. Diese Lösungen besitzen jedoch den Nachteil, dass sie oft schon nach relativ kurzer Lagerungszeit, manchmal sogar schon gleich nach der Abfüllung des Präparates, zur
Ausscheidung fester Proteinpartikel neigen, eine Erscheinung, die auf das Vorhandensein denaturier- ter Proteine zurückgeführt wird. Derartige feste Ausscheidungen machen solche Lösungen für die intravenöse Verabreichung, insbesondere als Infusion,. ungeeignet. 



   Es konnte nun gefunden werden, dass die Neigung zur Niederschlagsbildung bei solchen
Proteinlösungen unterbunden werden kann, indem man jene Proteinanteile, die die Instabilität der Lösung bewirken, durch Behandlung der Lösung mit Luft und anschliessende Inkubation der Lösung etwa bei Körpertemperatur gezielt und selektiv zur Ausscheidung bringt und abtrennt. 



   Die so erhaltenen Lösungen zeigen dann keinerlei Tendenz zur Niederschlagsbildung mehr und können problemlos gelagert und verabreicht werden. 



   Gegenstand der Erfindung ist demnach ein Verfahren zur Herstellung von lagerstabilen, intravenös zu verabreichenden, wässerigen Proteinlösungen aus Humanplasma oder Humanserum durch wiederholte Reinigungs- und Anreicherungsschritte, wie Fällen, Filtrieren, Adsorbieren und Dialysieren, das dadurch gekennzeichnet ist, dass man in die gereinigte und angereicherte
Serumproteinlösung während 1 bis 3 h unter Rühren sterile Luft einleitet und die Lösung an- schliessend 2 bis 3 Tage lang auf 30 bis   400C   erhitzt, den dabei auftretenden Proteinniederschlag abtrennt und die Lösung durch Sterilfiltration sterilisiert. 



   Hiebei wird die Hitzebehandlung vorzugsweise bei etwa   37 C   durchgeführt. 



   Es war überraschend, dass es möglich ist, durch eine so einfache Behandlung eine selektive Alterung und Ausflockung der denaturierten Proteine zu erzielen, die eine weitere Fraktionierung zu Reinigungszwecken überflüssig macht. 



   Die Abtrennung der ausgeflockten Proteine gelingt auf übliche Weise, insbesondere durch eine übliche Klarfiltration, wobei Silikate (Aerosil, Celite), Cellulosen (Filtercell)   od. ähnl.   als Filtermittel dienen können. 



   Das erfindungsgemässe Verfahren ist auf alle, auf übliche Weise hergestellte, wässerige Proteinlösungen anwendbar, die die geschilderte Instabilität aufweisen. Bevorzugt können damit Lösungen behandelt werden, die neben Albumin auch Plasmaproteinfraktionen, insbesondere einschliesslich Immunglobulinen enthalten, da vor allem die hochmolekularen Immunglobuline stark der Gefahr der Denaturierung ausgesetzt sind. 



   Beispiel :
Durch 10   l   einer 5%igen, durch Ammoniumsulfatfraktionierung und Mischung der Albuminmit der Globulinfraktion hergestellten Serumproteinlösung mit einem Gehalt von 15 Relativprozent Immunglobulinen wurde unter Rühren 2 h lang bei Zimmertemperatur sterile Luft geblasen. Die so erhaltene Lösung wurde anschliessend auf   37 C   erwärmt und diese Temperatur wurde 3 Tage lang konstant gehalten. Der erhaltene Niederschlag wurde durch Klärfiltration von ausgeschiedenen Proteinanteilen abfiltriert, anschliessend durch Sterilfiltration sterilisiert und abgefüllt. Der Proteinverlust durch die Behandlung betrug 5%. Die Lösung blieb bei zweimonatiger Lagerung völlig klar. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



   The invention relates to the production of storage-stable, aqueous protein solutions to be administered intravenously, in particular infusion solutions, from human plasma or human serum.



   The intravenous processing of protein solutions takes place in medicine in various ways
Application purposes. On the one hand, it serves for the purposes of parenteral nutrition, but on the other hand it also serves as supportive treatment for infections or for the treatment of shock conditions. However, these solutions have the disadvantage that they are often used after a relatively short storage period, sometimes even immediately after the preparation has been filled
Excretion of solid protein particles tend to occur, a phenomenon that is attributed to the presence of denatured proteins. Such solid excretions make such solutions for intravenous administration, especially as an infusion. not suitable.



   It has now been found that the tendency to form precipitation in such
Protein solutions can be prevented by deliberately and selectively removing and separating those protein fractions which cause the instability of the solution by treating the solution with air and then incubating the solution at about body temperature.



   The solutions thus obtained no longer show any tendency to form precipitates and can be stored and administered without problems.



   The invention accordingly relates to a process for the preparation of storage-stable, intravenously administered, aqueous protein solutions from human plasma or human serum by repeated purification and enrichment steps, such as precipitation, filtering, adsorbing and dialyzing, which is characterized in that the purified and enriched
Introduces sterile air into the serum protein solution with stirring for 1 to 3 h and then heats the solution to 30 to 400 ° C for 2 to 3 days, separates the protein precipitate that occurs and sterilizes the solution by sterile filtration.



   The heat treatment is preferably carried out at about 37.degree.



   It was surprising that it is possible to achieve selective aging and flocculation of the denatured proteins by such a simple treatment, which makes further fractionation for cleaning purposes superfluous.



   The flocculated proteins can be separated off in a customary manner, in particular by means of customary clarification, with silicates (Aerosil, Celite), celluloses (filter cell) or the like. can serve as filter media.



   The method according to the invention can be used in all aqueous protein solutions which are produced in the customary manner and which have the instability described. Solutions which, in addition to albumin, also contain plasma protein fractions, in particular including immunoglobulins, can thus preferably be treated, since the high-molecular immunoglobulins in particular are strongly exposed to the risk of denaturation.



   For example:
Sterile air was blown through 10 l of a 5% serum protein solution, prepared by ammonium sulfate fractionation and mixing the albumin with the globulin fraction, containing 15 relative percent immunoglobulins, with stirring for 2 hours at room temperature. The solution thus obtained was then heated to 37 ° C. and this temperature was kept constant for 3 days. The precipitate obtained was filtered off by clarifying the separated protein portions, then sterilized by sterile filtration and filled. The protein loss from the treatment was 5%. The solution remained completely clear after two months of storage.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENTANSPRÜCHE : 1. Verfahren zur Herstellung von lagerstabilen, intravenös zu verabreichenden, wässerigen Proteinlösungen aus Humanplasma oder Humanserum durch wiederholte Reinigungs- und Anreicherungsschritte, wie Fällen, Filtrieren, Adsorbieren und Dialysieren, dadurch gekennzeichnet, dass man in die gereinigte und angereicherte Serumproteinlösung während 1 bis 3 h unter Rühren <Desc/Clms Page number 2> sterile Luft einleitet und die Lösung anschliessend 2 bis 3 Tage lang auf 30 bis 40 C erhitzt, den dabei auftretenden Proteinniederschlag abtrennt und die Lösung durch Sterilfiltration sterilisiert.   PATENT CLAIMS: 1. A process for the preparation of storage-stable, intravenously administered, aqueous protein solutions from human plasma or human serum by repeated purification and enrichment steps, such as precipitation, filtration, adsorption and dialysis, characterized in that the purified and enriched serum protein solution for 1 to 3 h with stirring  <Desc / Clms Page number 2>  introduces sterile air and the solution is then heated to 30 to 40 ° C. for 2 to 3 days, the protein precipitate that occurs is separated off and the solution is sterilized by sterile filtration. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Hitzebehandlung bei etwa 37 C durchgeführt wird.  2. The method according to claim 1, characterized in that the heat treatment is carried out at about 37 C.
AT0392483A 1983-11-08 1983-11-08 METHOD FOR PRODUCING STORAGE-STABLE, INTRAVENOES TO BE ADMINISTERED, AQUEOUS PROTEIN SOLUTIONS AT386338B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT0392483A AT386338B (en) 1983-11-08 1983-11-08 METHOD FOR PRODUCING STORAGE-STABLE, INTRAVENOES TO BE ADMINISTERED, AQUEOUS PROTEIN SOLUTIONS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0392483A AT386338B (en) 1983-11-08 1983-11-08 METHOD FOR PRODUCING STORAGE-STABLE, INTRAVENOES TO BE ADMINISTERED, AQUEOUS PROTEIN SOLUTIONS

Publications (2)

Publication Number Publication Date
ATA392483A ATA392483A (en) 1988-01-15
AT386338B true AT386338B (en) 1988-08-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
AT0392483A AT386338B (en) 1983-11-08 1983-11-08 METHOD FOR PRODUCING STORAGE-STABLE, INTRAVENOES TO BE ADMINISTERED, AQUEOUS PROTEIN SOLUTIONS

Country Status (1)

Country Link
AT (1) AT386338B (en)

Also Published As

Publication number Publication date
ATA392483A (en) 1988-01-15

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