Epoetin Alfa vs REGN1033
Head-to-head comparison of Epoetin Alfa (Recombinant human erythropoietin alfa) and REGN1033 (Trevogrumab (REGN1033)) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Epoetin Alfa | REGN1033 |
|---|---|---|
| Category | Muscle & Performance | Muscle & Performance |
| Full Name | Recombinant human erythropoietin alfa | Trevogrumab (REGN1033) |
| Molecular Weight | ≈30,400 Da | ~150 kDa |
| Half-Life | ~4-13 h IV; ~20-30 h SC | ~2-3 weeks |
| Amino Acids | 165 | N/A |
| Typical Dose | 50-100 IU/kg SC 3x weekly or 40,000 IU SC weekly | 100-300 mg SC or equivalent trial dosing |
| Route | Subcutaneous/IV | Subcutaneous / Intravenous |
| Purity | ≥98% | ≥98% |
| Studies Count | 320 | 60 |
| Research Status | Clinical | Clinical |
Epoetin Alfa Benefits
- ✓raises hemoglobin
- ✓increases oxygen-carrying capacity
- ✓may increase VO2 max
- ✓improves time-to-exhaustion
REGN1033 Benefits
- ✓myostatin blockade
- ✓lean-mass preservation
- ✓muscle hypertrophy support
- ✓catabolic-state countermeasure
Epoetin Alfa Dosing
50-100 IU/kg subcutaneous 3x weekly|40,000 IU subcutaneous weekly|Titrate to hemoglobin target under medical supervision
REGN1033 Dosing
SC or IV clinical-trial dosing|repeat every 2-4 weeks|dose escalation by study
Epoetin Alfa Side Effects
- ⚠hypertension
- ⚠thrombosis
- ⚠polycythemia
REGN1033 Side Effects
- ⚠injection-site reactions
- ⚠headache
- ⚠fatigue
Research Overview
Epoetin Alfa
Human studies in anemia and performance-related settings show that increasing red-cell mass can improve aerobic capacity and endurance. It remains heavily regulated because excessive erythropoiesis raises thrombotic and cardiovascular risk.
REGN1033
Human and animal studies indicate that myostatin neutralization can increase muscle size, though functional gains are often smaller than mass gains. Trevogrumab is part of the broader literature showing that selective myostatin inhibition can alter body composition in clinically meaningful ways.
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