Overview
Ara-290, also known as cibinetide, is a non-erythropoietic peptide derived from erythropoietin that engages the Innate Repair Receptor (IRR). Clinical studies commonly use once-daily subcutaneous injections for therapeutic research purposes.
What It Is
Ara-290 is an 11-amino-acid peptide that binds to the Innate Repair Receptor (a heteromer of EPO-R and CD131), triggering cytoprotective and anti-inflammatory pathways without stimulating red blood cell production. The peptide was specifically designed to avoid hematopoietic effects seen with full-length erythropoietin.
Key Characteristics
– Mechanism: Activates the Innate Repair Receptor to shift tissue signaling from pro-inflammatory to pro-repair states
– Route: Subcutaneous injection
– Frequency: Once daily
– Clinical focus: Small-fiber neuropathy support, metabolic regulation, and ophthalmic applications
Dosage Protocols
Standard/Gradual Approach (2 mL Reconstitution)
| Week | Daily Dosage | Units (per injection) |
|---|---|---|
| Weeks 1-4 | 4 mg once daily (SC) | 50 units (0.50 mL) |
| Weeks 5-12 (optional) | 4 mg once daily (SC) | 50 units (0.50 mL) |
Concentration achieved: 8 mg/mL
Advanced/Aggressive Approach (2 mL Reconstitution)
| Week | Daily Dosage | Units (per injection) |
|---|---|---|
| Weeks 1-4 | 8 mg once daily (SC) | 100 units (1.00 mL) |
Notes: The 8 mg dose represents the upper arm evaluated in dose-ranging trials. If using syringes smaller than 1 mL, split into two injections.
Reconstitution Instructions
Materials needed:
– Bacteriostatic water: 2.0 mL per 16 mg vial
– Sterile insulin syringes
– Alcohol swabs
Step-by-step process:
1. Draw 2.0 mL bacteriostatic water using aseptic technique
2. Inject slowly down the vial wall; allow powder to dissolve
3. Gently swirl to mix—avoid vigorous shaking
4. Refrigerate at 2-8°C after mixing
5. Protect from light
Final concentration: 8 mg/mL solution for straightforward unit calculations
Storage
– Lyophilized form: Store frozen around -20°C, protect from light
– Reconstituted solution: Keep at 2-8°C; avoid repeated freeze-thaw cycles
– Handling: Use sterile technique throughout; discard if cloudy or discolored
Supplies Needed (4-Week Course Example)
| Item | Standard (4 mg/day) | Advanced (8 mg/day) |
|---|---|---|
| 16 mg Peptide Vials | ~7 vials | ~14 vials |
| Insulin Syringes | ~28 syringes | ~28 syringes |
| Bacteriostatic Water | 1× 30 mL bottle | 1× 30 mL bottle |
| Alcohol Swabs | 1 box | 1 box |
Reported Benefits
Research indicates potential improvements in:
– Neuropathic symptom scores and functional measures
– Small-fiber nerve metrics (e.g., corneal nerve fiber parameters)
– Metabolic regulation in type 2 diabetes contexts
– Inflammatory response modulation
Side Effects & Safety
Trials reported generally mild tolerability profiles:
– Common: Local injection-site irritation, headache, transient fatigue
– Profile: Most adverse events were mild and transient
– Monitoring: Track doses and any symptoms; rotate injection sites
Injection Technique
1. Clean vial stopper and skin with alcohol swabs; allow to dry
2. Pinch subcutaneous tissue and insert needle at 45-90° angle
3. Inject slowly; withdraw needle and apply gentle pressure
4. Use new sterile syringes for each injection
5. Rotate sites: abdomen, thigh, upper arm
6. Dispose of sharps in designated container
Evidence Base
Clinical dose-ranging studies have evaluated:
– 1 mg daily: Lower-dose arm
– 4 mg daily: Most commonly reported dose in human trials
– 8 mg daily: Upper-dose arm studied over 28 days
– Duration: 4 weeks in neuropathy trials; up to 12 weeks in ophthalmic studies
Lifestyle Considerations
Supporting research emphasizes complementary strategies:
– Nutrient-dense eating patterns and adequate hydration
– Regular low-impact physical activity
– Adequate sleep and stress management
– Structured recovery practices
Important Notes
– Confirm concentration and units before each dose draw
– Log all doses and any symptoms for tracking
– This guide is educational and not medical advice
– Consult qualified healthcare professionals before beginning
Disclaimer: This content is for educational and research purposes only. It is not intended to diagnose, treat, cure, or prevent any disease and should not substitute for professional medical guidance.