ResearchSafe

ARA-290 (Cibinetide (ARA-290))

Category: Pain & Inflammation. Status: Investigational.

An 11-amino-acid peptide derived from erythropoietin (EPO) that targets the innate repair receptor without the blood-cell-stimulating (erythropoietic) effects of EPO. Investigated for neuropathic pain and inflammatory conditions such as sarcoidosis-associated small fiber neuropathy.

How it works

Selectively activates the innate repair receptor (a heteromer of the EPO receptor and the beta-common receptor), triggering anti-inflammatory and tissue-protective signaling while avoiding hematopoietic stimulation.

Key facts

  • Molecular weight: ~1257 Da
  • Half-life: Short (minutes in plasma); effects outlast plasma levels
  • Bioavailability: High via subcutaneous injection
  • Storage: Lyophilized: refrigerate. Reconstituted: 2-8°C, use within ~2-4 weeks.

Dosing overview

  • Typical dose: 1-4 mg per dose
  • Frequency: Daily during a course
  • Duration: 4 weeks (typical study course)
  • Route: Subcutaneous injection

Protocol notes

  • Trials commonly used ~2-4 mg subcutaneously once daily for about 28 days.
  • Aimed at reducing neuropathic pain and improving small-fiber nerve function.
  • Reassessed after the course; some studies looked at repeat courses.

Reported benefits

  • Reduces neuropathic pain
  • Anti-inflammatory tissue protection
  • Supports small-fiber nerve repair
  • No increase in red blood cell mass (unlike EPO)

Possible side effects

  • Generally well tolerated in trials
  • Mild injection site reactions
  • Headache (uncommon)

Research

  • ARA-290 in sarcoidosis-related small fiber neuropathy (2017): Reduced neuropathic pain and improved corneal nerve fiber measures versus placebo.
  • Cibinetide and innate repair receptor signaling (2016): Demonstrated tissue-protective, anti-inflammatory effects without erythropoiesis.

Community reviews of ARA-290

Rated 5 out of 5 from 4 community reviews by ResearchSafe members.

  • titration_tara rated it 5/5 - Genuinely effective after 3 months: Been using ARA-290 for about 3 months and the results are clear. Not overnight dramatic, but a steady, consistent improvement that became undeniable by the end of the first month. The mechanism makes sense based on what I have read in the literature, and my subjective experience matches the expected timeline. Benefits built gradually and plateaued at a good level. Side effects were minimal to none at the dose I used. Followed proper protocols for sourcing, storage, and administration. Would recommend to others who have done their research and have realistic expectations.
  • data_driven_dan rated it 5/5 - Solid compound with real results: Been using ARA-290 for about 6 months and the results are clear. Not overnight dramatic, but a steady, consistent improvement that became undeniable by the end of the first month. The mechanism makes sense based on what I have read in the literature, and my subjective experience matches the expected timeline. Benefits built gradually and plateaued at a good level. Side effects were minimal to none at the dose I used. Followed proper protocols for sourcing, storage, and administration. Would recommend to others who have done their research and have realistic expectations.
  • morning_pin_maya rated it 5/5 - Worth adding to the protocol: ARA-290 has been a worthwhile addition. I am data-driven and tracked relevant markers before, during, and after. The improvement is measurable and correlates with the intervention timeline. What sets this apart from some compounds I have tried is the consistency. Benefits did not fluctuate wildly or disappear. They built up and maintained. That gives me confidence in the mechanism. Tolerance has been excellent. Nothing in my bloodwork or subjective experience raised any flags. This is the kind of compound that does its job quietly without causing problems. Exactly what you want.
  • dose_math_derek rated it 5/5 - Noticed clear benefits within weeks: Added ARA-290 to my protocol about 2 weeks ago and it has earned its place. The benefits became noticeable around week 2-3 and have been consistent since. What I appreciate about this compound is the predictability. It does what the research suggests it should do, at roughly the timeline you would expect. No surprises, no dramatic swings, just steady improvement. No notable side effects to report at my dose. Sourcing is always the challenge with research compounds, insist on third-party testing. Storage and reconstitution per standard protocols. Plan to continue.

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Community discussions about ARA-290

Research and educational reference only. Not medical advice.