ImmuneTier 3 β€” Animal + early human data

Thymopentin

TP-5 Β· Timunox Β· Thymic Pentapeptide

Synthetic pentapeptide (Arg-Lys-Asp-Val-Tyr) corresponding to the active site of thymopoietin. Restores T-cell differentiation and immune balance in immunodeficiency states. Widely used in China and Italy.

πŸ’‰ SC injection / IM injection🧊 Lyophilised: refrigerate; reconstituted: use within 7 days refrigerated.

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Mechanism of Action

Binds the thymopoietin receptor on T-cell precursors, inducing maturation of immature thymocytes into functional T-helper and T-suppressor cells. Restores CD4/CD8 ratio, upregulates IL-2 receptor expression, and normalises Th1/Th2 balance. Shorter and less potent than Thymosin Alpha-1 but faster onset (hours) due to small size.

Clinical Applications

  • βœ“Recurrent upper respiratory tract infections and chronic sinusitis
  • βœ“Post-antibiotic immune recovery
  • βœ“Age-related immunosenescence
  • βœ“Adjuvant in chronic hepatitis B (Asian clinical data)
  • βœ“Chemotherapy-induced lymphopenia support
  • βœ“Allergy and atopic conditions (Th1/Th2 rebalancing)

Dosing Protocol

Recommended Dosing

SC or IM injection. 1 mg daily for 5–10 days (acute protocol). Maintenance: 1 mg 2–3Γ— weekly for 4–8 weeks. Often run as a series of 1–2 courses per year. Well tolerated at these doses; no dose-finding studies beyond 1 mg.

Safety & Contraindications

Possible Side Effects

  • ⚠Injection site reactions (mild)
  • ⚠Occasional transient fatigue
  • ⚠Generally very well tolerated β€” better than TA-1 for injection site reactions

Contraindications

  • βœ•Organ transplant recipients on immunosuppression
  • βœ•Pregnancy
  • βœ•Active autoimmune disease β€” same caution as Thymosin Alpha-1

Combinations & Synergies

πŸ”— Thymosin Alpha-1complementary immune restoration (TA-1 for adaptive, TP-5 for rapid innate/T-precursor effect)
πŸ”— LL-37innate + adaptive immune breadth
πŸ”— BPC-157gut-immune axis, especially post-antibiotic