← All peptidesHealingOnce-daily subcutaneous protocol for innate repair receptor and neuropathy research.
Ara-290 (cibinetide) is an 11 amino acid non-erythropoietic peptide derived from erythropoietin's helix-B domain. It selectively activates the innate repair receptor (IRR), an EPOR/CD131 heterodimer, to promote anti-inflammatory and tissue-protective effects without stimulating red blood cell production. Clinical trials have demonstrated benefits for diabetic neuropathy and sarcoidosis-related small-fiber neuropathy.
Get Ara-290 → code PROFITProtocol Overview
Concise summary of the regimen.
GoalSupport tissue protection, anti-inflammatory signaling, and neuropathic symptom management via IRR activation.
ScheduleDaily subcutaneous injections for 4 to 8 weeks (clinical trials used 28-day protocols; extension to 8 to 16 weeks based on individual response).
Dose Range2 to 4 mg daily; 4 mg is the established target dose.
Reconstitution1.6 mL per 16 mg vial (10 mg/mL).
StorageLyophilized refrigerated or frozen; reconstituted refrigerated up to 28 days.
Dosing & Reconstitution
| WEEK | DAILY DOSE | UNITS PER INJECTION |
|---|
| Week 1 | 2 mg (2,000 mcg) | 20 units (0.20 mL) |
| Weeks 2 to 8 (or up to 16) | 4 mg (4,000 mcg) | 40 units (0.40 mL) |
Frequency: Inject once daily subcutaneously. Clinical studies used 4 mg/day as the target therapeutic dose, with no additional benefit observed at 8 mg. Starting at 2 mg for the first week allows assessment of individual tolerance before reaching the maintenance dose.
Reconstitution Steps
- Draw 1.6 mL bacteriostatic water with a sterile syringe.
- Inject slowly down the vial wall; avoid foaming.
- Gently swirl or roll until fully dissolved (do not shake vigorously).
- Label with reconstitution date and refrigerate at 2 to 8 °C, protected from light. At 10 mg/mL, 1 unit = 0.01 mL = 80 mcg on a U-100 insulin syringe.
Storage Instructions
Proper storage preserves peptide quality.
- Lyophilized: refrigerate at 2 to 8 °C for up to 2 years; freeze at -20 °C for extended storage up to 3 years.
- Reconstituted: refrigerate at 2 to 8 °C; use within 28 days; do not freeze the liquid solution.
- Allow vials to reach room temperature before opening to minimize condensation; protect from light.
- Discard if discoloration, cloudiness, or particulate matter is observed.
Supplies Needed
Plan based on an 8 to 16 week daily protocol with gradual titration (2 mg week 1, then 4 mg daily).
Peptide Vials (Ara-290, 16 mg each):
- 8 weeks: ~14 vials.
- 12 weeks: ~21 vials.
- 16 weeks: ~28 vials.
Insulin Syringes (U-100):
- Per week: 7 syringes (1/day).
- 8 weeks: 56. 12 weeks: 84. 16 weeks: 112.
Bacteriostatic Water (10 mL bottles):
- 8 weeks (14 vials): 3 bottles. 12 weeks (21 vials): 5 bottles. 16 weeks (28 vials): 6 bottles.
Alcohol Swabs:
- Per week: 14 swabs.
- 8 weeks: 112 (2 x 100-count). 16 weeks: 224 (3 x 100-count).
Important Notes
Practical considerations for consistency and safety.
- Use a new sterile insulin syringe for each injection; dispose in a sharps container.
- Rotate injection sites (abdomen, thighs, upper arms) to reduce local irritation and prevent
lipohypertrophy.
- Inject slowly; wait a few seconds before withdrawing the needle.
- Document daily dose and injection site to maintain consistency.
- No clinically significant adverse effects were reported at 4 mg/day in 28-day clinical trials.
How This Works
Ara-290 (cibinetide) binds to the innate repair receptor (IRR), a heterodimer of EPOR and CD131 (bc subunit), which is distinct from the classical erythropoietin receptor. This selective binding triggers anti-apoptotic and anti-inflammatory signaling cascades that protect tissues and promote repair without stimulating erythropoiesis. Preclinical research demonstrates that Ara-290 can reprogram a pro-inflammatory, tissue-damaging environment into one favoring healing and regeneration. Additionally, analgesic effects have been observed through immunomodulation and direct inhibition of TRPV1 ion channels activated by capsaicin.
Benefits & Side Effects
Observations from preclinical and clinical literature.
- Neuroprotection: Clinical trials in diabetic neuropathy showed improvements in HbA1c, lipid profiles,
and neuropathic pain scores with 4 mg daily dosing.
- Nerve regeneration: In sarcoidosis-associated small-fiber neuropathy, treatment led to significant
increases in corneal nerve fiber density and improved symptoms compared to placebo.
- Tissue protection: Anti-inflammatory and anti-apoptotic effects observed across multiple organ systems
in preclinical models.
- No erythropoietic effects: Unlike full EPO, Ara-290 does not stimulate red blood cell production,
avoiding related side effects.
- Tolerability: Well tolerated in clinical studies; occasional mild injection-site reactions (redness, transient
discomfort) may occur with subcutaneous administration.
Lifestyle Factors
Complementary strategies for best outcomes.
- Optimize glycemic control through diet and medication adherence if addressing diabetic neuropathy.
- Incorporate regular physical activity appropriate to individual capacity to support nerve health and
circulation.
- Prioritize adequate sleep and stress management to support tissue repair processes.
- Avoid smoking and limit alcohol consumption, both of which can exacerbate neuropathic conditions.
Injection Technique
General subcutaneous guidance from clinical best-practice resources.
- Clean the vial stopper and skin with alcohol; allow to dry.
- Pinch a skinfold; insert the needle at 45 to 90 degrees into subcutaneous tissue.
- Do not aspirate for subcutaneous injections; inject slowly and steadily.
- Wait 5 to 10 seconds before withdrawing; dispose of syringe in sharps container.
- Rotate sites systematically (abdomen, thighs, upper arms) to avoid lipohypertrophy.
References
Source citations for further reading.
- Brines M et al. ARA 290 improves metabolic control and neuropathic symptoms in type 2 diabetes (Molecular Medicine, 2014).
- Dahan A et al. ARA 290 improves symptoms in sarcoidosis-associated small nerve fiber loss (Molecular Medicine, 2013).
- Brines & Cerami. Discovery and development of the innate repair receptor and its non-erythropoietic ligands (Molecular Medicine, 2008).
- Zhang W et al. ARA 290 relieves pathophysiological pain by targeting TRPV1 channel (Peptides Journal, 2016). Ara-290 (16 mg vial) Once-daily subcutaneous protocol for innate repair receptor activation research. Ara-290 (cibinetide) is an 11 amino acid non-erythropoietic peptide derived from erythropoietin's helix-B domain. It selectively activates the innate repair receptor (IRR), an EPOR/CD131 heterodimer, to promote anti-inflammatory and tissue-protective effects without stimulating red blood cell production. Clinical trials have demonstrated benefits for diabetic neuropathy and sarcoidosis-related small-fiber neuropathy. Protocol Overview Concise summary of the regimen. Goal: Support tissue protection, anti-inflammatory signaling, and neuropathic symptom management via IRR activation. Schedule: Daily subcutaneous injections for 4 to 8 weeks (clinical trials used 28-day protocols; extension to 8 to 16 weeks based on individual response). Dose Range: 2 to 4 mg daily; 4 mg is the established target dose. Reconstitution: 1.6 mL per 16 mg vial (10 mg/mL). Storage: Lyophilized refrigerated or frozen; reconstituted refrigerated up to 28 days. Dosing & Reconstitution Guide Standard / gradual approach (1.6 mL = 10 mg/mL). WEEK DAILY DOSE UNITS PER INJECTION Week 1 2 mg (2,000 mcg) 20 units (0.20 mL) Weeks 2 to 8 (or up to 16) 4 mg (4,000 mcg) 40 units (0.40 mL) Frequency: Inject once daily subcutaneously. Clinical studies used 4 mg/day as the target therapeutic dose, with no additional benefit observed at 8 mg. Starting at 2 mg for the first week allows assessment of individual tolerance before reaching the maintenance dose. Reconstitution Steps
Educational and research reference only. Not medical advice. For research use only; not for human consumption.