The preliminary therapy with decreased nerve degeneration and glial stimulation, and cytokine production, including IFN-, IL-17, IL-17A, TNF-, IL-1, and chemokines (MCP-1 and MIP-1)
Higher dose exploration (4.5mg trials) Rationale for testing 4.5mg: Investigate maximum tolerable dose Determine if higher = better weight loss Establish safety ceiling Results at 4.5mg weekly: Weight loss: ~12% (vs 10% at 2.4mg) Incremental benefit: Only 2% additional loss Side effects: Significantly worse nausea/vomiting Dropout rate: Higher than 2.4mg Clinical verdict: 4.5mg not recommended for routine use Risk-benefit ratio unfavorable 2.4mg remains optimal Some individuals may tolerate 3.0mg as compromise CagriSema combination dosing trials REDEFINE-1 protocol: Semaglutide: 2.4mg weekly (standard titration over 16 weeks) Cagrilintide: 2.4mg weekly (12-week titration) Both given as separate injections Started simultaneously from week 1 Semaglutide escalation (standard): Weeks 1-4: 0.25mg Weeks 5-8: 0.5mg Weeks 9-12: 1.0mg Weeks 13-16: 1.7mg Week 17+: 2.4mg Cagrilintide escalation (when combined): Weeks 1-4: 0.6mg Weeks 5-8: 1.2mg Weeks 9-12: 1.8mg Week 13+: 2.4mg Results: 15.6% average weight loss (68 weeks) Superior to either alone Side effects manageable with slow titration Combination well-tolerated See our cagrilintide and semaglutide combination guide and semaglutide dosage calculator
Red flags to avoid include prices significantly below market rates (often indicating diluted or contaminated products), absence of any testing documentation, unclear or evasive answers about sourcing, and vendors without verifiable Canadian presence
If the FDA ultimately permits compounding some of these peptides, patients may find it easier to get them through licensed compounding pharmacies instead of relying on unregulated sources
What the Evidence Actually Shows Here is the honest evidence status, component by component: GHK-Cu has the deepest literature of the three
