From:  Injectable biodegradable hydrogels for in situ tissue engineering

 Summary of clinical applications of injectable hydrogels.

Issue typeHydrogel systemCell/GF deliveryClinical stageKey outcomes
CartilageHyaluronic acid (HA) hydrogelTGF-β3, chondrocytesPhase II/III clinical trialsImproved cartilage regeneration, reduced pain scores
BoneCalcium phosphate/collagen compositeBMP-2Phase II clinical trialsAccelerated bone union, osteoconductive scaffold integration
CardiacAlginate hydrogel (IK-5001)None (acellular)Phase II (AUGMENT-HF)Reduced infarct expansion, improved LV geometry
Wound healingCollagen/HA wound fillerPDGF-BB (becaplermin)FDA-approvedAccelerated chronic wound closure in diabetic ulcers
NeuralSelf-assembling peptide (RADA16)NGFPhase ISafety established; early signs of functional improvement