Skip to content
Specimen Atlas of Research Peptides81 plates · MIT
Side-by-side · Research reference

ARA 290vsN-Acetyl Epitalon Amidate

Side-by-side comparison across mechanism, dosage, evidence, side effects, administration, and stack synergies. Citations on every claim where available.

APhase 2HUMAN-REVIEWED17/59 cited
BAnimal-StrongHUMAN-REVIEWED12/45 cited
ARA 290
EPO-Derived Peptide · Innate Repair Receptor Agonist
28 daysPhase 2 durationCulver 2017
Non-erythropoieticSafety profileBrines 2015Liu 2014
N-Acetyl Epitalon Amidate
Bioregulator Tetrapeptide · Khavinson School
10 passagesExtra divisionsKhavinson 2004
Telomerase+Enzyme inductionKhavinson 2003
4-AATetrapeptide
SQ · Variable protocols

01Mechanism of Action

Parameter
ARA 290
N-Acetyl Epitalon Amidate
Primary target
Innate repair receptor (EPO receptor / CD131 heterodimer)
DNA promoter regions (telomerase, RNA polymerase II, retinal genes)
Pathway
EPO/CD131 → JAK2 activation → PI3K/AKT, MAPK signaling → anti-inflammatory, anti-apoptotic cascades
Peptide → DNA complementary binding → Gene transcription initiation → Telomerase catalytic subunit expression
Downstream effect
Tissue protection, nerve fiber regeneration, suppression of inflammatory macrophage activation, altered T-cell differentiation (↑Treg, ↑Th2, ↓Th1)Liu 2014Culver 2017
Telomerase enzymatic activity induction, telomere elongation to early-passage length, extension of replicative lifespan in human somatic cellsKhavinson 2003Khavinson 2004
Feedback intact?
N/A — does not interact with hematopoietic EPO receptorLiu 2014
Origin
11-amino-acid sequence from EPO helix B, engineered to eliminate hematopoietic activity while retaining tissue-protective properties
Synthetic tetrapeptide (Ala-Glu-Asp-Gly) derived from pineal extract bioregulator research; N-acetyl and C-amide modifications enhance plasma stability
Antibody development
Not reported in clinical trials

02Dosage Protocols

Parameter
ARA 290
N-Acetyl Epitalon Amidate
Standard dose (Phase 2)
4 mg / dayBrines 2015Culver 2017
Sarcoidosis SFN and diabetic neuropathy trials.
Frequency
Once daily
Self-administered subcutaneously.
Not specified in candidate papers
Duration
28 days (Phase 2)Culver 2017
Corneal nerve improvements observed by day 28.
Chronic treatment in aging culture
Sustained effect through late passages.
Evidence basis
Phase 2 RCTsCulver 2017Brines 2015
64-subject sarcoidosis trial, type 2 diabetes trial.
In vitro human cell cultureKhavinson 2004Khavinson 2003
Route
SubcutaneousBrines 2015
Timing
Any time of day
No circadian dependence reported.
Standard dose
No standardized human dosing in indexed literature
In vitro protocols use direct culture addition; human clinical dosing protocols are in Russian-language literature outside PubMed scope.
Cell culture protocol
Addition to human fetal fibroblast culture induced telomerase activity and telomere elongation to early-passage lengthKhavinson 2004
Cells made 10 extra divisions (44 passages total vs 34 in control).
Modification stability
N-acetyl + C-amide caps enhance peptidase resistance
Standard strategy for tetrapeptide stabilization; specifics not quantified in candidates.

03Metabolic / Fat Loss Evidence

Parameter
ARA 290
N-Acetyl Epitalon Amidate
Primary effect
Improved metabolic control (HbA1c, fasting glucose)Brines 2015
Secondary to neuropathy treatment; direct lipolytic effects not established.
HbA1c
Significant reduction vs placebo
Observed in type 2 diabetes + neuropathy trial.
Fasting glucose
Improved in ARA 290 group
Body composition
Not directly quantified
Fat loss not a primary endpoint; metabolic improvements may reflect insulin sensitivity.

04Side Effects & Safety

Parameter
ARA 290
N-Acetyl Epitalon Amidate
Injection site reaction
Mild, transient
Hematopoiesis
None — non-erythropoietic
Distinguishes ARA 290 from native EPO.
Cardiovascular
No thrombotic events or hypertension reported
Immunogenicity
No antibody formation reported
Tolerability
Well-tolerated in Phase 2 trialsCulver 2017Brines 2015
Human safety data
Not available in indexed literature
Candidate papers describe in vitro and animal models only.
Theoretical telomerase risk
Telomerase activation in somatic cells raises theoretical oncogenic transformation concern
In vitro observations
No cytotoxicity reported in human fetal fibroblast cultureKhavinson 2004
Absolute Contraindications
ARA 290
  • ·Hypersensitivity to ARA 290
N-Acetyl Epitalon Amidate
  • ·Active malignancy or history of cancer — telomerase reactivation may promote tumor cell immortalization
Relative Contraindications
ARA 290
  • ·Active malignancy (theoretical EPO-axis concern; not observed in trials)
N-Acetyl Epitalon Amidate
  • ·Individuals with hereditary cancer syndromes or high genetic cancer risk

05Administration Protocol

Parameter
ARA 290
N-Acetyl Epitalon Amidate
1. Preparation
Reconstitute lyophilised powder per manufacturer instructions. Use sterile technique.
Subcutaneous injection assumed based on peptide class; no specific protocol in candidate papers.
2. Injection site
Subcutaneous — abdomen, thigh, or upper arm. Rotate sites to avoid lipohypertrophy.
Standard bacteriostatic water for lyophilized peptides. Exact volume not specified in indexed literature.
3. Timing
Once daily, any time of day. Self-administered in Phase 2 trials.Brines 2015
Lyophilized: -20 °C, desiccated. Reconstituted: refrigerate 2–8 °C. N-acetyl and C-amide modifications improve stability vs unprotected tetrapeptide.
4. Dosing
4 mg daily for 28 days (Phase 2 protocol). Duration for chronic use not established.Culver 2017
Human dosing schedules published in Russian-language clinical literature; not indexed in PubMed candidate set.
5. Storage
Lyophilised: store at controlled room temperature. Reconstituted: refrigerate, use within specified timeframe.

06Stack Synergy

ARA 290
+ BPC-157
Moderate
View BPC-157

ARA 290 targets the innate repair receptor (EPO/CD131) for nerve regeneration and anti-inflammatory signaling, while BPC-157 promotes angiogenesis and tissue repair through distinct mechanisms (likely involving VEGF, growth hormone receptor pathways). Combined, they may address both neuroinflammation and structural tissue repair in neuropathy or injury models. No direct clinical data; mechanistic overlap in tissue protection.

ARA 290
4 mg SQ · daily
BPC-157
250–500 mcg SQ · daily
Frequency
Once daily, same or separate injections
Primary benefit
Nerve regeneration, pain reduction, tissue healing
N-Acetyl Epitalon Amidate
+ Thymalin
Moderate
View Thymalin

Both are Khavinson-school bioregulators with epigenetic mechanisms. Thymalin targets thymic transcription factors for immune function, while Epitalon targets telomerase and pineal-axis genes. Combined use theoretically addresses dual axes of aging: replicative senescence and immune decline. Multi-target bioregulator strategy per Khavinson gerontology framework.

Epitalon
Protocol not defined in indexed literature
Thymalin
Tissue-specific bioregulator · separate dosing
Rationale
Complementary transcriptional targets
Primary benefit
Dual-axis aging intervention: cellular senescence + immune restoration