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Peptide encyclopedia/ ARA-290
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ARA-290

Small-fiber neuropathy research

Research topics · Sources checked 2026-10-04

Read the studies ↓

ARA-290 AT A GLANCE

The question behind the molecule.

Read findings and limitations ↓
2 selected publicationsContext mattersA small, short pilot cannot establish durable recovery. A positive neuropathy score should not be presented as a significant benefit on every measured pain or fatigue outcome.

What is ARA-290?

ARA-290, also called cibinetide, is an erythropoietin-derived peptide investigated in tissue-protection research. A small clinical pilot examined neuropathy symptoms in people with sarcoidosis.

Biological role or research focus

Small-fiber neuropathy research.

A small, short pilot cannot establish durable recovery. A positive neuropathy score should not be presented as a significant benefit on every measured pain or fatigue outcome.

Role reference: Safety and efficacy of ARA 290 in sarcoidosis patients with symptoms of small fiber neuropathy: a randomized, double-blind pilot study. · 2012 ↗

Names you may encounter

Cibinetide

Search terms can include brands, combinations, or historical names. They are not automatic product equivalents.

Class / identity
Erythropoietin-derived investigational peptide
Research focus
Small-fiber neuropathy research
Featured evidence
Human randomized pilot trial
Source check
October 4, 2026

Source: Safety and efficacy of ARA 290 in sarcoidosis patients with symptoms of small fiber neuropathy: a randomized, double-blind pilot study. · 2012 ↗

Biology & proposed mechanism

Its design separates proposed tissue-protective signaling from erythropoietin’s red-blood-cell effects. The pilot measured clinical symptoms rather than establishing nerve regeneration.

Source: Safety and efficacy of ARA 290 in sarcoidosis patients with symptoms of small fiber neuropathy: a randomized, double-blind pilot study. · 2012 ↗

Research context & identity

The featured trial concerns sarcoidosis-associated small-fiber neuropathy. It does not establish effectiveness for every form of pain, neuropathy, or injury.

Source: Safety and efficacy of ARA 290 in sarcoidosis patients with symptoms of small fiber neuropathy: a randomized, double-blind pilot study. · 2012 ↗

What does the evidence show?

Selected published evidence, with the population, findings, and limits kept together. These original summaries draw on publication abstracts; they are not a systematic review.

Human randomized pilot trial · 2012

Sarcoidosis-associated small-fiber neuropathy pilot

What did this publication test, and what did it find?

Population / model
22 people with sarcoidosis and small-fiber neuropathy.
Study design
Randomized double-blind placebo-controlled pilot over four weeks.
Main finding
The small-fiber-neuropathy symptom score improved more with ARA-290. Brief Pain Inventory pain and fatigue measures improved similarly in both groups; depression did not change.
Limits & context
A small, short pilot cannot establish durable recovery. A positive neuropathy score should not be presented as a significant benefit on every measured pain or fatigue outcome.

Source: Safety and efficacy of ARA 290 in sarcoidosis patients with symptoms of small fiber neuropathy: a randomized, double-blind pilot study. · 2012 ↗

Human placebo-controlled trial · 2013

ARA 290 · nerve-fiber outcomes

Did a later short study add objective nerve measures?

Population / model
Patients with sarcoidosis and documented small nerve-fiber loss; the abstract does not state the sample size.
Study design
Blinded placebo comparison over 28 days, assessing neuropathic symptoms, corneal nerve density, sensory testing, and walking capacity.
Main finding
The report described improved neuropathic symptoms, increased corneal small nerve-fiber density, altered temperature sensitivity, and greater six-minute walking capacity.
How to read it
An objective corneal measure complements symptom reports but is not proof of durable recovery throughout the nervous system.
Limits & context
The abstract omits effect sizes and participant count. Short follow-up and a specific disease setting limit generalization. Full methods and longer-term replication need review before making a disease-modifying claim.

Source: ARA 290 · nerve-fiber outcomes · 2013 ↗

Read the original paper for methods, adverse events, funding, and conflicts of interest. Publisher access may require a subscription.

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Safety & precautions

Safety & what remains unknown

The pilot did not identify a clinical or laboratory safety concern, but its size and duration provide limited information about uncommon or delayed harms.

Source: Safety and efficacy of ARA 290 in sarcoidosis patients with symptoms of small fiber neuropathy: a randomized, double-blind pilot study. · 2012 ↗

Evidence boundaries

A small, short pilot cannot establish durable recovery. A positive neuropathy score should not be presented as a significant benefit on every measured pain or fatigue outcome.

Source: Safety and efficacy of ARA 290 in sarcoidosis patients with symptoms of small fiber neuropathy: a randomized, double-blind pilot study. · 2012 ↗

This is not a complete list of contraindications, interactions, or adverse effects. Medicine labels apply to specific products and indications; research-use listings are not interchangeable with approved medicines.

What are people discussing?

No editorial transcript note has been reviewed for this profile yet. Below are the matching video records available for exploration; title and caption matches are not verified claims.

Watch the source discussions

11 matching video records · 2 with captions indexed.

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Sources & supplier listings

Listings are grouped by the vendor’s stated identity. Blends and modified derivatives are labeled separately. Inclusion is not a quality assessment or an endorsement.

Named compound · batch not verified

ARA-290 (15mg)

BioLongevity Labs · Vendor-labeled research use only

$95.00

Listed in stock · Snapshot 2026-10-04
Options may vary. Shipping and tax excluded.

View seller listing ↗

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Named compound · batch not verified

ARA-290 (10 mg)

American Peptides · Vendor-labeled research use only

$82.00

Listed in stock · Snapshot 2026-10-05
Options may vary. Shipping and tax excluded.

View seller listing ↗

Affiliate link · PepsRadar may earn a commission from purchases through this link. Affiliate disclosure.

Named compound · batch not verified

ARA-290 (10 mg)

PSPeptides · Vendor-labeled research use only

$59.99

Listed in stock · Snapshot 2026-10-05
Options may vary. Shipping and tax excluded.

View seller listing ↗

Affiliate link · PepsRadar may earn a commission from purchases through this link. Affiliate disclosure.

Catalog checked 2026-10-04. Seller listings retain their stated intended use. Shops covered: BioLongevity Labs, BioLongevity Supplements, American Peptides, PSPeptides. This is not a market-wide comparison. Affiliate participation does not determine evidence or editorial coverage.

Questions worth asking

  • Did every pain outcome improve more than placebo?
  • What material, population, and route were actually studied?
  • A small, short pilot cannot establish durable recovery. A positive neuropathy score should not be presented as a significant benefit on every measured pain or fatigue outcome.
  • What adverse effects, uncertainty, and conflicts of interest does the original source report?

Frequently asked questions

Did every pain outcome improve more than placebo?

No. The report distinguished an improved neuropathy symptom score from pain and fatigue measures that improved similarly in both groups.

Source: Safety and efficacy of ARA 290 in sarcoidosis patients with symptoms of small fiber neuropathy: a randomized, double-blind pilot study. · 2012 ↗

Does the publication verify a supplier’s product?

No. The tested material and a commercial listing need separate identity and batch checks. A research-use disclaimer does not establish clinical suitability.

Source: Safety and efficacy of ARA 290 in sarcoidosis patients with symptoms of small fiber neuropathy: a randomized, double-blind pilot study. · 2012 ↗

References & editorial record

Source notes checked 2026-10-04. Original PepsRadar summaries. Not reviewed by a medical professional. Topic grouping is editorial navigation, not a treatment recommendation. Video notes specify which excerpts were reviewed; no full transcripts are published.

For research and education only. This page does not provide medical advice, diagnosis, or treatment. Research-only listings are not instructions for human use.

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