---
slug: ara-290-diabetic-neuropathy
title: "ARA-290 for Diabetic Neuropathy: Human Trial Data"
kind: source_ledger
status: published
hash: e5356a644a88cc6a83f7e98e8b69acfeaa99cfdbef96a9d37d2ce3458e2941b2
created: 2026-06-29T13:21:44.409Z
updated: 2026-10-08T11:51:05.423Z
summary: "Nerves can break down faster than they rebuild. In diabetic neuropathy, small fibers lose function. Signals for pain and numbness stay active because the tissue itself is not repaired. ARA-290 is studied for whether it can support regrowth"
tags: []
above: []
below: []
adjacent: []
nested: []
---
# ARA-290 for Diabetic Neuropathy: Human Trial Data

*Nerves can break down faster than they rebuild. In diabetic neuropathy, small fibers lose function. Signals for pain and numbness stay active because the tissue itself is not repaired. ARA-290 is studied for whether it can support regrowth*

## Regeneration vs degeneration — where this fits
Nerves can break down faster than they rebuild. In diabetic neuropathy, small fibers lose function. Signals for pain and numbness stay active because the tissue itself is not repaired. ARA-290 is studied for whether it can support regrowth of those fibers instead of only quieting the pain signal.

## What it is
ARA-290 is an 11-amino-acid peptide. It comes from erythropoietin but does not raise red blood cells. It targets the innate repair receptor.

## How it works
Step 1: The peptide binds the innate repair receptor.  
Step 2: Binding changes cell signaling toward protection and repair.  
Step 3: In models, this reduces certain inflammatory signals and supports nerve structure.  
Step 4: In one human trial, corneal nerve fiber density rose in the treatment arm while it stayed flat in placebo.

## Why it would work (logic chain)
If the receptor drives tissue protection, then binding it should slow breakdown. If breakdown slows, then regrowth can catch up. If small-fiber density rises, then sensation and pain scores can change. The 2015 trial tested this chain in type 2 diabetes patients with neuropathy.

## Why people take it
People with diabetic neuropathy or small-fiber neuropathy seek options that address nerve structure rather than only symptoms. Some read the 2015 trial and look for the same compound.

## How many people take it
The ledger shows no population count. Use remains outside approved indications. Number of users is unknown.

## Evidence inventory
- Human controlled data: 1 source (phase 2 RCT, source s1).  
- Preclinical or review sources: 7 sources (sources s2, s3, s6, s7, s8, s9, s19).  
- Anecdotal sources: 13 Reddit posts + 1 YouTube video = 14 total.  
- Total sources catalogued: 23.  
- X posts: 0.

## What scientists say
The 2015 phase 2 RCT (source s1) found PainDetect scores improved more with ARA-290 than placebo. In patients with low baseline corneal nerve fiber density, density rose after 28 days in the treatment group and stayed unchanged in placebo. Metabolic measures also shifted in the treatment arm. A 2016 review (source s19) noted similar symptom and metabolic patterns in type 2 diabetes small-fiber neuropathy cases. Later reviews (sources s2, s8) list ARA-290 as an investigational agent still under study. One 2026 guide (source s9) states the trial was small and underpowered for metabolic endpoints and that no phase 3 data exist.

## What people say on Reddit
Source s11: “I have diabetic neuropathy. My feet and lower legs have been numb for about 10 years. I started using ARA-290 about a month ago. The feeling in my feet is significantly returning.”  
Source s12: “I am almost done with a month of ara 290… My neuropathy was very bad and it has improved significantly.”  
Source s13: “Yesterday was by FAR the best day of the past 15 months! I walked over 14,000 steps pain free” after 8 days.  
Source s14: “I took 4 units daily for 8 weeks, didn’t do anything for my neuropathy!”  
Source s15: “14 days into ARA 290 and zero relief.”  
Source s20: 28-day self-experiment at 4 mg/day produced pain relief and some sensory change with no side effects reported.  
Source s18: Relief described as temporary; repeated courses needed and cost noted as high. These are user reports, not trial data.

## What people say on X
No posts appear in the ledger.

## What we do not know
It is unknown if PainDetect gains or corneal nerve fiber density changes last beyond the 28-day trial window (source s1, claims c32, c34). Mechanisms behind the metabolic shifts seen in the trial are not fully mapped (claim c37). Optimal amount and length of use are not established from the available human data (claim c41). No phase 3 trials are recorded in the ledger.

## Safety and limits
The phase 2 trial reported symptom and nerve-density changes but was small. No phase 3 safety database exists in the ledger. Reddit users report mixed results and note cost. One source states the trial was underpowered for secondary metabolic endpoints. The ledger contains no population-level safety figures.

## Facts

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## Sources

1. [ARA 290, a Nonerythropoietic Peptide Engineered from Erythropoietin, Improves Metabolic Control and Neuropathic Symptoms in Patients with Type 2 Diabetes](https://pmc.ncbi.nlm.nih.gov/articles/PMC4365069/) — “Neuropathic symptoms as assessed by the PainDetect questionnaire improved significantly in the ARA 290 group. ... subjects with a mean CNFD >1 standard deviation from normal showed a significant increase in CNFD compared with no change in the placebo group.” (sha256 a021d3998dde7299)
2. [Diabetic neuropathy: cutting-edge research and future directions](https://www.nature.com/articles/s41392-025-02175-1) — “ARA 290 is an 11-amino ... Spinal cord stimulation in patients with painful diabetic neuropathy : a multicentre randomized clinical trial .” (sha256 d91d8c7bc98d72d7)
3. [ARA290 microneedle patch modulate microglia ...](https://www.sciencedirect.com/science/article/pii/S0264127525012596) — “Sustained ARA290 release via microneedles promotes M2 microglia polarization and reduces neuroinflammation. • The microneedle patch effectively alleviates ...” (sha256 8bb39576db540b88)
4. [Peptide ARA-290](https://www.reddit.com/r/neuropathy/comments/1o33123/peptide_ara290/) — “Has anyone tried the peptide ARA-290. It has clinical evidence of helping to slow or stop neuropathy and allow nerves to heal.” (sha256 b7822964d1e09224)
5. [Small Fiber Neuropathy and ARA-290 Results](https://www.youtube.com/watch?v=xggIEy1ZfM8) — “ARA 290 is a potential therapy currently being researched for its safety and efficacy for the treatment of neuropathic pain in patients with sarcoidosis, as well as its potential for disease modification and long-term functional improvement in this condition.” (sha256 d29a8dcab2bda09a)
6. [ARA-290 Peptide | Inflammation & Nerve Support](https://www.paragonsportsmedicine.com/peptides/ara-290) — “ARA-290 represents a promising therapeutic peptide with demonstrated benefits in clinical studies of diabetic neuropathy and chronic neuropathic pain.” (sha256 28aec16e3600286e)
7. [ARA-290 Peptide for Neuropathy and Neurodegeneration](https://mindbodyneurology.com/ara-290-peptide-neuropathy/) — “A double-blind phase II study in patients with type 2 diabetes and painful neuropathy reported meaningful improvement in neuropathic symptom scores along with better metabolic parameters after ARA 290 treatment.” (sha256 c1062e73bd3d1dbb)
8. [Diabetic Peripheral Neuropathy: Molecular Staging, Risk Factors, Therapeutics, and Emerging Trends](https://onlinelibrary.wiley.com/doi/10.1002/mdr2.70060) — “Nanotechnology & targeted delivery: NSC-EVs loaded with sinomenine, ARA290-loaded microneedle patch | WNT5a/TRPV1 signaling, microglial polarization (M1→M2) | Improved pain behavior and nerve damage in murine models; sustained anti-inflammatory presence” (sha256 8f95a2ee5993cf0f)
9. [ARA-290 (Cibinetide): An EPO-Derived 11-Amino-Acid Peptide Targeting the Innate Repair Receptor](https://superpower.com/guides/ara-290) — “The diabetic neuropathy trial was similarly small and underpowered for the metabolic secondary endpoints.” (sha256 21d1adc1a4580522)
10. [ARA 290: A New Frontier in Pain Relief and Healing](https://www.renewyouth.com/ara-290-a-new-frontier-in-pain-relief-and-healing/) — “ARA 290 is a promising new therapy with the potential for revolutionizing the treatment of nerve damage, autoimmune diseases,... Neuropathic Pain: ... Small Fiber Neuropathy: ... Protection for Eyes and Kidneys:” (sha256 ef793ba6169cc5ca)
11. [ARA-290 peptide — any experience reports?](https://www.reddit.com/r/neuropathy/comments/hreepv/ara290_peptide_any_experience_reports/) — “I have diabetic neuropathy. My feet and lower legs have been numb for about 10 years. I started using ARA-290 about a month ago. The feeling in my feet is signifantly returning. I am totally blown away about this.” (sha256 af770b0df6d9b312)
12. [ARA-290 peptide — any experience reports?](https://www.reddit.com/r/neuropathy/comments/hreepv/ara290_peptide_any_experience_reports/) — “I am almost done with a month of ara 290. I’m not part of a trial but I am using it. It’s not cheap. I have seen really great results. My neuropathy was very bad and it has improved significantly. I have tried almost everything and this was the most helpful by far.” (sha256 01a56079928bba7f)
13. [ARA290 peptide AND Rebuilder 2407 have changed my life!](https://www.reddit.com/r/neuropathy/comments/1tncdyo/ara290_peptide_and_rebuilder_2407_have_changed_my/) — “I am at 8 days of the ARA290 peptide and have titrated up to the 4 mg used in the human trials. ... Yesterday was by FAR the best day of the past 15 months! I walked over 14,000 steps pain free!” (sha256 73dbe3f69cfae6ac)
14. [ARA-290, whats your experience?](https://www.reddit.com/r/neuropathy/comments/1uavvbs/ara290_whats_your_experience/) — “I took 4 units daily for 8 weeks, didn't do anything for my neuropathy !” (sha256 afadaccd3b664882)
15. [ARA 290 14 days in no relief.](https://www.reddit.com/r/smallfiberneuropathy/comments/zy6z6u/ara_290_14_days_in_no_relief/) — “14 days into ARA 290 and zero relief. Losing my mind in pain.” (sha256 9b782048aebc639e)
16. [ARA-290 Disc Herniaton & Nerve Pain](https://www.reddit.com/r/neuropathy/comments/1tvw5x6/ara290_disc_herniaton_nerve_pain/) — “UPDATE (07.06.2026) I had to take 2 days off from it as I was abroad and not able to take it with me. I was on it for less than a week and didn't notice any benefits nor side effects.” (sha256 b00cb0baf1dba4b8)
17. [ARA-290 Quick Guide: The Erythropoietin-Derived Peptide Targeting Neuropathic Pain and Tissue Protection](https://www.reddit.com/r/IonPeptideGuide/comments/1s0nyps/ara290_quick_guide_the_erythropoietinderived/) — “It has entered Phase I and Phase II human clinical trials for neuropathic pain (specifically in sarcoidosis patients), diabetic neuropathy, and critical limb ischemia” (sha256 a0be67f7ea795830)
18. [ARA-290 for Neuropathic Pain](https://www.reddit.com/r/smallfiberneuropathy/comments/vlbxty/ara290_for_neuropathic_pain/) — “I am also doing ARA290 and I order it from Core Peptides... I’ve taken it it helps with pain but it’s temporary. You have to keep doing it from time to time at least and it’s expensive.” (sha256 0044ca2223db7667)
19. [Targeting the innate repair receptor to treat neuropathy](https://pmc.ncbi.nlm.nih.gov/articles/PMC5741312/) — “In patients with T2D, the results were similar to those observed in patients with sarcoidosis along with an improved metabolic profile.” (sha256 618c15783c730b76)
20. [Effectiveness of ARA-290...My Assessment](https://www.reddit.com/r/smallfiberneuropathy/comments/v44s3q/effectiveness_of_ara290my_assessment/) — “Definite benefit, although it took12 days for it to start working. ... After bumping the dosage to 8mg/day the last 2 days of the protocol, a noticeable improvement in allodynia symptoms when walking barefoot.” (sha256 a84890cb09a7d01b)
21. [Do I have SFN? ARA-290 helped](https://www.reddit.com/r/smallfiberneuropathy/comments/1ce0ub5/do_i_have_sfn_ara290_helped/) — “I tried the peptide ARA-290 because it was supposed to help with nerve re-growth. It was amazing! Feeling started to come back, and I was surprised by how aware I was of temperature too” (sha256 005ccddb7060a80d)
22. [Anyone tried ARA 290](https://www.reddit.com/r/neuropathy/comments/1u8astt/anyone_tried_ara_290/) — “I am trying 4mg ARA-290 now, along with a host of supplements. ... I am unsure if ARA-290 is helping.” (sha256 625a55b9cc69eded)
23. [ARA-290 demonstrated structural nerve fiber growth in a controlled human trial](https://www.reddit.com/r/Biohackers/comments/1tmejcv/ara290_demonstrated_structural_nerve_fiber_growth/) — “ARA-290 demonstrated structural nerve fiber growth in a controlled human trial.” (sha256 c270558bcabea8ab)
24. [ARA-290 — Full Breakdown Guide](https://www.reddit.com/r/BioHackingGuide/comments/1tlyrva/ara290_full_breakdown_guide/) — “Neuropathy standard | 4mg | Once daily | SubQ | 28 days” (sha256 727f61cb63581e89)
25. [Life saver](https://www.reddit.com/r/neuropathy/comments/1tyz687/life_saver/) — “I want to try ARA 290 and will report back.” (sha256 a4fccf5148a9b58f)
26. [do ara-290 effects wear off?](https://www.reddit.com/r/smallfiberneuropathy/comments/1mhgq4w/do_ara290_effects_wear_off/) — “after a few weeks of use, all benefits are gone. Has anyone else experienced this?” (sha256 c7fd937829360637)
27. [Has anyone tried ARA-290 (or any other peptides)?](https://www.reddit.com/r/Erythromelalgia/comments/1n94gam/has_anyone_tried_ara290_or_any_other_peptides/) — “It helps my SFN pain significantly (until it loses efficacy after a few weeks and I have to do a washout period). It has no effect on my EM. ... Doesn’t work for everyone and it’s not a cure, it also loses efficacy over time. But the first 7-10 days if you’re one of the ones it works for, is like a sigh of relief” (sha256 dbcf84870c907708)
28. [BPC157](https://www.reddit.com/r/smallfiberneuropathy/comments/1plukvn/bpc157/) — “Hey so I did two months of ARA290 and I didn’t really notice too much from that, but one thing I will say is my internal “cracking” from overfiring nerves in my fingers when bend my fingers backward went away.” (sha256 87d67d6b1e92734c)
29. [ARA290](https://www.reddit.com/r/neuropathy/comments/1mcbbkb/ara290/) — “Expensive. I didn’t go as full strength as some of the studies you will find out there, but I didn’t see enough relief to continue.” (sha256 d6087184c1dcd8bf)
30. [How do you administer peptides?](https://www.reddit.com/r/neuropathy/comments/1u9ikrk/how_do_you_administer_peptides/) — “I’m thinking of getting ara290 for my husband who has diabetic neuropathy. Gabapentin helps him but the pain seems to still be worse at times, more so than say a year ago. He also has spinal stenosis.” (sha256 7cf2f2c04a23a79e)
31. [The most underrated peptide nobody talks about: ARA-290](https://www.reddit.com/r/Biohack_Blueprint/comments/1ts29qs/the_most_underrated_peptide_nobody_talks_about/) — “ARA-290 is one of the most promising compounds for neuropathic pain and nerve-related issues. It has been studied for diabetic neuropathy , sarcoidosis-related ...” (sha256 33f359a0750f3bcb)
32. [ARA-290 a masterclass (solving all nerve damage)](https://x.com/drtrevorbackwoi/status/2063515853694681540) — “2018 study published in the Journal Diabetes Care showed that ARA-290 in diabetic neuropathy… restored small fiber density, improved mitochondrial function in nerve ti...” (sha256 11bb21e586c841dc)
33. [Peptides for neuropathy](https://x.com/coco_chatel/status/2061613422945436118) — “I’ve already used those peptides - for an extended period of time. The problem is that nerve regeneration can’t happen if the immune assault responsible for the neuropathy isn’t addressed. I plan on trying ARA-290 again once I’ve been on high dose IVIG for 6 months.” (sha256 5a2754707c2f5837)
34. [BPC and TB vs ARA-290 for neuropathy](https://x.com/HunterEsoteric/status/2058956218698203619) — “BPC and TB for tissue and inflammation. ARA-290 for the nerve pain and neuropathy that those two just don't reach. Right tool for the right problem.” (sha256 581c63e536eccc1b)
35. [ARA290, an alternative of erythropoietin, inhibits activation of NLRP3 inflammasome in schwann cells after sciatic nerve injury](https://www.sciencedirect.com/science/article/abs/pii/S0014299925003644) — “In our study, we demonstrated that both EPO and pyroglutamic acid helix B surface peptide (pHBSP, also known as ARA290) inhibit the early inflammatory response and promote functional recovery after sciatic nerve crush injury in rat models. ... EPO and ARA290 promote repair and regeneration by inhibiting the activation of NLRP3 inflammasome after sciatic nerve injury.” (sha256 47d31cbac61c9c1b)