If you have been reading about evidence base and want a single page that covers the useful parts, this is it: definitions, context, how it is studied, and the questions that come up repeatedly.
Updated 2025-12-23. Numbers and descriptions here follow the published literature rather than marketing material.
Most published reports describe experiments in rodents rather than in people. These studies examine outcomes in tendons, ligaments, bone, stomach lining, and intestinal tissue. In rat and mouse models, a frequently reported effect is faster healing or reduced damage. Sample sizes are usually small, and a substantial share of the work originates from a small number of research groups. Independent replication is limited, so how far the findings extend to humans remains an open question.
Proposed mechanisms in the literature involve the nitric oxide system, vascular endothelial growth factor signaling, and epidermal growth factor receptor pathways. Some studies report changes in blood vessel formation or in inflammatory mediators, while others describe interactions with nervous tissue. Much of this evidence rests on molecular markers in cultured cells or animal models. Whether the same pathways operate the same way in humans has not been established. Authors therefore tend to describe mechanisms as hypothetical rather than settled.
Direct human evidence is scarce. One trial in ulcerative colitis delivered the compound by enema and produced limited publicly reported results without a clear benefit. The compound is not an approved medicine in most jurisdictions. In many markets it is sold as a research chemical; in others it falls under prescription or controlled categories. Regulators have not confirmed any claimed medical use, and product labels rarely undergo premarket review.
BPC-157 is a synthetic peptide built from fifteen amino acids, referred to in the literature as a pentadecapeptide. Its sequence was derived from a larger protein found in human gastric juice, commonly called body protection compound. Researchers first described the fragment in the early 1990s and named it after the parent protein plus a numeric identifier. The peptide does not correspond to a single marketed medicine; it is primarily a laboratory research material. Suppliers distribute it as a lyophilized powder intended for experimental use.
Published work on BPC-157 spans several decades and covers a wide range of experimental models. Much of the early literature reports outcomes in animal studies involving induced injury to the gastrointestinal tract, tendons, and other tissues. The volume of preclinical reports is large, while controlled human trials remain scarce. This imbalance is a recurring point of discussion, because animal findings do not automatically translate into human effects. Reviews often note that study designs differ substantially across laboratories.
Interest in the peptide has grown through online communities that discuss self-administered use, which sits outside formal research settings. Regulatory status varies by country, and in many jurisdictions the compound is not approved as a therapeutic product. Questions about optimal routes of administration, long-term effects, and dose-response relationships remain open. Published pharmacokinetic data in humans are limited, and much of what circulates in popular discussion is extrapolated from animal work rather than measured directly in people.
| Property | Value | Notes |
|---|---|---|
| Main study model | Rodents, rats and mice | Underpins most of the published data |
| Common routes in studies | Subcutaneous, intraperitoneal, oral | Varies with the experimental design |
| Common analytical method | Reversed-phase HPLC, LC-MS | Used for identity and purity checks |
| Human evidence base | Small | Few trials reported, with limited findings |
| Regulatory status | Varies by jurisdiction | Not an approved medicine in most places |
Supplied material is typically a lyophilized white to off-white powder. The peptide is freely soluble in water and in common aqueous buffers, which allows it to be handled as a stock solution. Because the sequence contains no cysteine, disulfide cross-linking is not a route of degradation. The absence of aromatic residues means ultraviolet absorbance at 280 nm is minimal, so quantification usually relies on peptide bond absorbance near 214 nm or on amino acid analysis.
Common synonyms in catalogs include pentadecapeptide BPC 157, BPC157, and the full sequence name. A CAS registry number in the 137525-51-0 range is frequently listed, though the assignment should be verified against the supplier certificate of analysis. The name itself is not a pharmacopoeial designation, and there is no standardized international nonproprietary name. Distinguishing genuine material from related fragments generally requires mass spectrometry, since several truncated sequences share similar chromatographic behavior.
In its common research form the peptide is supplied as a lyophilized powder. It dissolves readily in water and in typical aqueous buffers, which simplifies preparation of working solutions. Laboratories usually prepare small aliquots instead of one large volume. The dry material appears as a white to off-white solid with no distinctive odor. Bulk quantities are typically shipped in sealed vials.
Lyophilized material is generally kept cold, commonly at minus twenty degrees Celsius, and shielded from moisture and light. Solutions are less stable than the dry powder, so repeated freeze-thaw cycles are avoided by splitting the material into single-use portions. Published stability data for this particular peptide are limited, which means suggested hold times should be read as provisional. Long-term refrigeration of reconstituted solutions is not well supported by available evidence.
Identity and purity are checked with standard peptide techniques. Reversed-phase high-performance liquid chromatography separates the main peak from closely related impurities and yields a percentage purity. Mass spectrometry confirms that the measured mass matches the theoretical value. Amino acid analysis offers an independent check on overall composition. These analytical methods characterize the material itself and reveal nothing about how it behaves in a living system.
== Pharmakologie == Apixaban ist ein direkter, selektiver Hemmer des an der Blutgerinnung beteiligten Enzyms Faktor Xa. Es wird oral verabreicht. Apixaban wird im Gastrointestinaltrakt gut resorbiert. Die Bioverfügbarkeit liegt bei 50 %. In der Leber wird die Substanz zu einem Phenolderivat oxidiert, wobei der Metabolismus über Cytochrom P450 eine untergeordnete Rolle spielt. Seine maximale Plasmakonzentration erreicht Apixaban nach drei bis vier Stunden. Die Elimination erfolgt zu 75 % biliär und zu 25 % renal. Apixaban besitzt eine Halbwertszeit von etwa 9 bis 14 Stunden. Apixaban ist kontraindiziert bei Patienten mit Hämophilie. Das Interaktionspotential mit anderen Arzneimitteln wird als gering eingeschätzt. Andexanet Alfa ist ein rekombinanter Hemmer von Apixaban.
== Risikofaktoren für das Auftreten von Blutungen == Im September 2013 wiesen die Hersteller der neuen oralen Antikoagulanzien Apixaban, Dabigatranetexilat und Rivaroxaban in einem gemeinsamen, mit den zuständigen Arzneimittelbehörden abgestimmten Informationsbrief darauf hin, dass Meldungen unerwünschter Arzneimittelwirkungen (UAW) aus klinischen Studien und aus der Praxis gezeigt haben, dass auch bei den neuen oralen Antikoagulanzien ein signifikantes Risiko für schwere Blutungsereignisse, auch mit Todesfolge, besteht. Um das Blutungsrisiko zu minimieren, müssen die verordnenden Ärzte das Blutungsrisiko der Patienten individuell beurteilen und die Angaben zu Dosierung und Gegenanzeigen sowie Warnhinweise und gebotene Vorsichtsmaßnahmen beachten. Gemeinsam sind allen neuen oralen Antikoagulanzien die folgenden Gegenanzeigen:
akute, klinisch relevante Blutungen Läsionen oder klinische Situationen, die als signifikanter Risikofaktor einer schweren Blutung angesehen werden gleichzeitige Anwendung von anderen Antikoagulanzien wie zum Beispiel Heparinen oder Vitamin-K-Antagonisten (mit wenigen Ausnahmen). Auch eine Nierenfunktionsstörung kann eine Gegenanzeige darstellen, allerdings gelten hierbei für die drei Arzneimittel unterschiedliche Empfehlungen.
Sources: de.wikipedia.org
== Bewertung == Bei nicht valvulärem Vorhofflimmern und hohem Schlaganfallrisiko kann Apixaban in bestimmten Situationen eine Alternative zu Vitamin-K-Antagonisten wie Phenprocoumon sein. Dazu gehören schwierige INR-Einstellung unter Vitamin-K-Antagonisten, hohes Risiko für hämorrhagische Insulte oder intrazerebrale Blutungen sowie Unverträglichkeit, Kontraindikationen oder Interaktionen von Vitamin-K-Antagonisten mit zwingend erforderlichen anderen Arzneimitteln. Vorsicht ist geboten bei Patienten mit hohem Blutungsrisiko, vor allem solange für Apixaban kein spezifisches Antidot zur Verfügung stand, das bei schweren Blutungen oder vor dringlichen Operationen die Wirkung von Apixaban gezielt aufheben kann. Im Mai 2018 hat die US-Zulassungsbehörde FDA das rekombinante Protein Andexanet alfa als Antidot zugelassen. Im März 2019 hat die Europäische Zulassungsbehörde EMA die Zulassung (Handelsname in der EU: Ondexxya) für die EU empfohlen. Im April 2019 kam es zu einer Zulassung durch die Europäische Kommission für die europäischen Mitgliedstaaten. Andexanet alfa ähnelt strukturell dem Faktor Xa, ist aber enzymatisch inaktiv. Es bindet Apixaban und wirkt somit der Bindung von Apixaban an den natürlich vorkommenden Faktor Xa entgegen.
Sources: de.wikipedia.org
Animal experiments form the bulk of the published record. Rodent models of tendon, ligament, bone, and gut injury are the most common designs. Controlled human trials are rare, which limits confidence in any clinical claim.
They are best described as working hypotheses. Supporting data come mainly from cell cultures and animal tissue, using markers such as growth factors and inflammatory signals. Confirmatory human studies have not been reported.
Status depends on the country. In some places it is treated as a research chemical available without a prescription, while elsewhere it falls under prescription or controlled rules. It holds no general marketing approval as a therapeutic product.
It is a synthetic peptide of fifteen amino acids whose sequence matches a fragment of a protein found in human gastric juice. It is studied mainly in laboratory and animal research rather than as an approved medicine.