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Tissue Repair & Anti-Inflammatory

AOD-9604 + Hyaluronic Acid

Joint injection pairing hyaluronic acid's lubrication with AOD-9604's proposed cartilage-protective signaling; supported mainly by animal data.

RestrictedEvidence level 2 of 5: Animal data, minimal humanAlso: AOD-9604/HA, AOD + HA intra-articular, AOD-9604 with hyaluronan

Overview

This combination is a joint injection that pairs two agents. Hyaluronic acid (HA) is a natural component of joint fluid; injected HA restores lubrication and cushioning and is an established, if modest, treatment for knee osteoarthritis. AOD-9604, a growth hormone fragment, is added because animal studies suggest it supports cartilage cells and reduces degenerative changes. In a rabbit osteoarthritis model, the combination improved cartilage and mobility more than HA alone. No human trials have tested the combination. It must be given by a clinician using sterile technique, ideally with imaging guidance, and is best used within a physical-therapy-based rehabilitation plan.

Classification
Compounded combination: AOD-9604 peptide plus hyaluronic acid (glycosaminoglycan viscosupplement)
Route
Intra-articular (clinician-administered)
Half-life
AOD-9604 ~30 minutes systemically; HA persists in the joint for days to weeks

Mechanism of action

Primary targetSynovial fluid and articular chondrocytes
  1. Intra-articular deliveryClinician injects both agents directly into the affected joint.
  2. HA restores viscosityHyaluronan improves synovial lubrication and shock absorption.
  3. AOD signals chondrocytesProposed support of cartilage cells and matrix production (animal data).
  4. Catabolic signaling reducedLower inflammatory mediators and matrix-degrading enzyme activity reported.
  5. Cartilage preservedSlower cartilage loss and improved joint mechanics in animal models.
Downstream effects
  • Reduced joint pain
  • Improved mobility
  • Cartilage protection (animal)

Researched for

  • Knee osteoarthritis
  • Shoulder and hip osteoarthritis
  • Post-surgical joint recovery
  • Tendinopathy (off-label)

Research notes

  • Rabbit OA model (Kwon & Park 2015): AOD-9604 plus HA improved cartilage scores and function more than HA alone.
  • HA viscosupplementation shows small-to-moderate pain benefit in knee OA meta-analyses; guideline support is mixed.
  • No human trials of AOD-9604, alone or combined, for joint disease.
  • Benefits reported by clinics are anecdotal and confounded by concurrent rehabilitation.

Reported side effects

  • Post-injection joint pain or swelling
  • Temporary effusion or warmth
  • Rare joint infection
  • Rare allergic reaction to HA

Contraindications & cautions

  • Joint or skin infection at the site
  • Active malignancy
  • Bleeding disorder or anticoagulation (relative)
  • Allergy to hyaluronic acid
  • Pregnancy

Lab monitoring

  • CBC and CMP
  • ESR and CRP
  • Joint imaging (X-ray or MRI)
  • Pain/function scores (WOMAC or VAS)

Dosing and pricing for AOD-9604 + Hyaluronic Acid

Dosing references and compound pricing are available to established patients in the secure portal after a medical evaluation.

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