KLOW news and clinical trials

New systematic review in Acta orthopaedica Belgica: Human evidence for BPC-157 in orthopaedic and regenerative medicine: a systematic review of efficacy and safety.

Researchers evaluated the stability of liposome-encapsulated GHK-Cu in cosmetic formulations using capillary electrophoresis coupled with mass spectrometry. The study demonstrates that liposomes can successfully encapsulate GHK-Cu, potentially enhancing transdermal delivery.

A review and case report published in Frontiers in oral health examined the use of regenerative peptides like BPC-157, TB-500, and ARA-290 for inferior alveolar nerve injury. The authors reported neurosensory recovery in three clinical cases but cautioned that causality cannot be established.

Researchers published a study on the tripeptide Lysine-Proline-Valine in macrophage models. Treatment with the peptide attenuated lipid accumulation and foam cell formation by suppressing reactive oxygen species and inflammatory signaling pathways.

A critical review of rodent studies associated BPC-157 with protective effects against ischemia-reperfusion injury, including reductions in inflammation and oxidative stress. The authors noted the evidence remains heterogeneous and preclinical.

A systematic review of GHK-Cu literature through August 12, 2026, found that while preclinical data supports its role in tissue repair, clinical evidence remains limited. The review highlights that many delivery studies fail to resolve critical factors like molar copper occupancy.

A systematic review of GHK-Cu literature published between 2005 and 2026 identified a lack of adequately powered human trials using microneedle delivery. Researchers found extensive preclinical evidence for tissue regeneration but noted that further clinical testing is required.

New review in Missouri medicine: Dangers of Injectable Peptides and Other Unregulated "Biohacking" Drugs.

Researchers developed biodegradable polymer STAR particles-using materials like cellulose acetate and polylactic acid-to painlessly puncture skin and deliver drugs. Tests showed these particles increased intradermal drug delivery of agents like copper tripeptide-1 by up to 37-fold.

The University of Arkansas registered a phase 1 trial to investigate the safety, feasibility, and preliminary efficacy of BPC-157 in 30 participants undergoing arthroscopic rotator cuff repair surgery.

Researchers developed a method to express BPC-157 in Bacillus licheniformis strain 2709. The resulting proteins demonstrated gastroprotective and therapeutic activity in a rat model of acute gastric ulcer.

A narrative review summarized the current evidence on regenerative peptides used for chronic pain management. The authors concluded that clinical evidence in humans remains limited and most of these therapies currently lack FDA approval.

A systematic review of 20 studies on GHK-Cu in aesthetic medicine indicates it enhances extracellular matrix synthesis and reduces inflammation in preclinical models. Clinical data, though limited, suggests improvements in wrinkle depth and patient satisfaction after procedures.

Researchers published a study on the peptide KPV in preadipocytes and obese mice. Treatment with 100 μg/mL KPV suppressed adipocyte differentiation and reduced triglyceride content by approximately 38% in vitro, while oral administration alleviated diet-induced obesity in mice.

Scientists designed an injectable hydrogel containing tea exosomes, glucose oxidase, and GHK-Cu for diabetic wound healing. The material accelerates wound repair by lowering glucose levels, reducing hypoxia, and promoting antibacterial activity.

A scoping review concluded that claims regarding peptide supplements for musculoskeletal recovery remain unsubstantiated by current human trials. Authors warned of potential risks including cardiovascular complications.

A study found that combining a ferment extract from Thermus thermophilus and Bacillus subtilis with GHK-Cu outperformed the individual ingredients in skin tests. This combination reduced inflammatory cytokines and improved skin barrier function in human skin explants and clinical tests.

Researchers fabricated a biocompatible chitosan-based hydrogel for BPC-157 delivery. Testing showed the material has antibacterial properties and potential for biomedical applications.

In a rat study, researchers evaluated the effects of BPC-157 and TB-500 on Achilles tendon healing. Both treatments were associated with improved histopathological parameters and extracellular matrix organization, though the combination of peptides did not provide additional benefits.

Researchers found that BPC 157 therapy counteracted gentamicin-induced nephrotoxicity in rats by modulating the nitric oxide system. The peptide treatment preserved kidney function, including serum urea and creatinine levels, and maintained normal tubular epithelium cells.

Researchers developed a complex of Torilis japonica extract and GHK-Cu, finding that an optimized 6:4 ratio synergistically suppressed Th2 cytokines and improved keratinocyte migration. This formulation warrants further investigation for atopic dermatitis management.

LifeWave, Inc. registered a clinical trial to evaluate the effects of the X39 patch on circulating blood levels of GHK and GHK-Cu in 100 healthy adults. The study compares the patch to a placebo over an 8-day period.

Researchers developed a hydrogel loaded with glucose oxidase and GHK-Cu to treat infected diabetic wounds. The system simultaneously lowers local glucose levels and releases oxygen to alleviate hypoxia, promoting tissue repair and antibacterial activity.

A narrative review explored the use of supplements, including collagen, BPC-157, and thymosin-beta 4 and 500, in Masters athletes and adults over 55. The review aims to examine their impact on performance and musculoskeletal health in this specific population.

A rat study demonstrated that BPC 157 therapy counteracts vascular and multiorgan failure following unilateral adrenalectomy. The peptide treatment reduced oxidative stress, normalized blood pressure, and protected organs including the heart, liver, and kidneys.

Researchers reported a fast analytical workflow to detect 54 prohibited doping compounds in dried blood spots, serum, and plasma using liquid chromatography and mass spectrometry. The study found that storing samples in dried matrices allows for non-refrigerated transport, reducing costs.

Researchers published a study in Biomaterials advances describing the development of poly(γ-benzyl-L-glutamate) microspheres grafted with GHK-Cu. These scaffolds enhanced bone marrow mesenchymal stem cell mineralization and stimulated angiogenesis, showing potential for bone defect repair.

Scientists investigated BPC-157 and two hybrid analogs, CIARA-1 and CIARA-2, as acetylcholinesterase inhibitors. While all compounds showed competitive inhibition, the hybrid CIARA-1 demonstrated the highest inhibitory potency.

A study of aged mice found that intranasal GHK-Cu (15 mg/kg) improved hippocampal-dependent learning and suppressed growth and metabolic signaling, while intraperitoneal dosing (15 mg/kg) activated stress-response and repair pathways with less sustained cognitive impact.

An Integrative Medicine review evaluated the use of peptides for thyroid disorders, finding that current evidence for agents like BPC-157 and thymosin is largely limited to preclinical studies and exploratory reports rather than large randomized trials.

Researchers investigated a combination therapy using Copper Tripeptide-1, ethyl ferulate, and cedrol on UV-damaged human skin biopsies. They found that this multi-target approach effectively mitigated elastic fiber disruption and improved fiber architecture.

New review in Pharmaceutics: BPC-157 as an Investigational Peptide Therapeutic: Biopharmaceutical Challenges, Formulation Strategies, and Translational Development Barriers.

In a rat model, BPC 157 showed protective effects against skeletal muscle ischemia-reperfusion injury. The peptide treatment reduced oxidative stress, inflammation, and apoptosis, while supporting angiogenic activity and muscle architecture.

A JBJS Reviews article summarizing injectable peptides in sports medicine concluded that these agents remain experimental, with clinical use limited to approved metabolic agents and rigorous research protocols due to uncertain safety and efficacy.

A study in the Journal of Clinical Medicine investigated BPC 157 in 12 human internal mammary artery rings, finding that the peptide induces concentration-dependent vasorelaxation primarily through an endothelium-dependent nitric oxide pathway.

A study using Caenorhabditis elegans showed that GHK-Cu significantly extended lifespan and improved aging-related phenotypes. The peptide delayed aging by preserving mitochondrial function and activating the DAF-16 and SKN-1 pathways.

Researchers published a study on the peptide KPV in hepatic HepG2 cells. Treatment with 100 µg/mL KPV significantly reduced lipid accumulation and fatty acid synthase expression induced by oleic acid by regulating the PPARγ pathway.

Scientists created an injectable hydrogel using carboxymethyl chitosan and GHK-Cu to treat radiation-induced skin injury. The hydrogel releases GHK-Cu to promote tissue repair and collagen deposition while scavenging reactive oxygen species to reduce oxidative stress.

Researchers revealed the laccase-like property of GHK-Cu, which demonstrated a V max of 1.735 × 10 -4 mM·s -1 and a K m of 0.061 mM. This catalytic efficiency allowed for the development of a sensor capable of rapid colorimetric detection of phenolic compounds like epinephrine.

New review in Frontiers in aging: Therapeutic peptides in gerontology: mechanisms and applications for healthy aging.

Researchers tested GHK-Cu in a zebrafish larvae model and found it attenuated acute inflammation by suppressing pro-inflammatory cytokines like tnf-a, il-1β, and il6. The peptide also mitigated oxidative stress and downregulated the JAK1 pathway.

The FDA announced a public advisory committee meeting of the Pharmacy Compounding Advisory Committee to seek input on bulk drug substances nominated for the Section 503A bulk drug substances list.

Researchers published a review of approved and unapproved peptide therapies used in sports medicine. They found that while unapproved peptides often show potential for tissue repair in animal models, human safety data remain scarce and carry a risk of serious harm.

A review in the International Journal of Molecular Sciences discussed BPC-157, noting that while preclinical data suggest reparative and anti-inflammatory benefits for tissue healing, human research is limited to small pilot studies.

A review in Pharmaceuticals modeled the cytoprotective effects of BPC 157 in rodents, finding that it can simultaneously counteract hemorrhage and thrombosis without directly affecting the coagulation cascade.

A critical review of peptide use in sports concludes that while peptides are marketed as safer alternatives to steroids for bodybuilding, long-term safety data is lacking and the unregulated supply chain poses significant health risks. Evidence for performance enhancement is limited.

Hudson Biotech registered a phase 1/2 trial to evaluate the safety and tolerability of TB-500 in 80 adults with stable atherosclerotic cardiovascular disease. The study aims to explore cardiovascular biomarkers and vascular function.

A review in Current Neuropharmacology synthesized studies on BPC 157 in rodents, finding the peptide effectively mitigated symptoms of hyperkalemia, hypokalemia, and magnesium overdose, suggesting therapeutic promise for electrolyte imbalances.

Hudson Biotech registered a phase 2 trial to evaluate whether BPC-157 can accelerate structural healing and functional recovery in 120 patients with acute grade II hamstring muscle strain.

Hudson Biotech is recruiting for a Phase 2 trial to test if a topical GHK-Cu gel can accelerate the healing of standardized punch-biopsy wounds in 60 healthy adults. The study compares the gel to a vehicle gel over 3 weeks.

A review examined BPC 157 as a cytoprotective therapy for arrhythmias. Preclinical models indicate the peptide stabilizes heart rate, restores sinus rhythm, and prevents complications in various arrhythmia models without documented adverse effects in human trials to date.

A systematic review evaluated BPC 157 alongside growth factors for treating musculoskeletal injuries. The review found that BPC 157 acts independently without scaffolds or carriers and demonstrates efficacy in healing complex osteotendinous and myotendinous injuries.

A review in the journal Antibiotics surveys emerging multifunctional strategies for wound management, including the use of bioactive peptides like GHK-Cu and antimicrobial peptides alongside scaffolds and real-time monitoring technologies.

A study investigated the effect of BPC 157 on tracheocutaneous fistula in rats. Daily administration of 10 µg or 10 ng of the peptide resulted in rapid recovery and fistula closure, appearing to act through the nitric oxide system.

Researchers used Fourier transform infrared spectroscopy to assess aortic wall remodeling after unilateral adrenalectomy in rats. Administration of 10 ng/kg of BPC 157 produced spectral signatures consistent with rapid extracellular matrix reinforcement and vascular membrane preservation.

Researchers published a study in Science Advances demonstrating a self-immolative peptide prodrug conjugate platform for oral delivery. In colitis mice, the KPV-based conjugate showed 3.8-fold greater colonic accumulation than free KPV, offering enhanced efficacy at a 20-fold lower dose.

A review published in the Journal of the American Academy of Orthopaedic Surgeons analyzed the use of therapeutic peptides in orthopaedics. The authors noted that while peptides show promise in preclinical models for tissue regeneration, there is currently a lack of clinical trials.

A narrative review evaluated evidence for injectable peptide therapy in orthopaedic and sports medicine. The authors concluded that current clinical data remain limited or unvalidated for peptides like BPC 157 and others, necessitating further research before clinical use.

Researchers validated a Golgi-targeted copper delivery system using GHK-Cu and ATOX1-encoding nanoparticles to enhance fascia regeneration. In rabbit models, this strategy increased LOX activity to 1.78 times that of the control group and improved extracellular matrix reconstruction.

A review published in Drug Discovery Today examines host defense peptides as potential therapeutic candidates for inflammatory bowel diseases. The authors found that these peptides can modulate cytokine release and downregulate the NF-κB pathway to help restore homeostasis.

A review in the International Journal of Medical Sciences examines the use of tripeptides in wound healing and skin regeneration. The study highlights that tripeptides promote tissue repair by regulating cell migration, collagen deposition, and angiogenesis.