Didemnin B vs RgIA
Head-to-head comparison of Didemnin B (Didemnin B) and RgIA (alpha-Conotoxin RgIA from Conus regius venom) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Didemnin B | RgIA |
|---|---|---|
| Category | Experimental | Experimental |
| Full Name | Didemnin B | alpha-Conotoxin RgIA from Conus regius venom |
| Molecular Weight | 1112.4 Da | 1,670 Da |
| Half-Life | N/A | Minutes to hours |
| Amino Acids | N/A | 13 |
| Typical Dose | 0.05-2 mg/m2 IV in early trials | 10-300 pmol intrathecal|1-100 nM in vitro|single-dose rodent studies |
| Route | Intravenous | Intrathecal |
| Purity | ≥98% | ≥98% |
| Studies Count | 120 | 130 |
| Research Status | Clinical | Pre-clinical |
Didemnin B Benefits
- ✓antineoplastic
- ✓antiviral
- ✓pro-apoptotic
- ✓immunomodulatory
RgIA Benefits
- ✓alpha9alpha10 nAChR selectivity
- ✓neuropathic pain model tool
- ✓neuroimmune signaling research
- ✓analgesic lead discovery
Didemnin B Dosing
historic IV phase I/II oncology regimens|dose escalation in early trials|no approved dosing regimen
RgIA Dosing
Intrathecal bolus in rodent pain models|Patch-clamp assays on alpha9alpha10 receptors|Single-dose pre-clinical screening
Didemnin B Side Effects
- ⚠nausea
- ⚠vomiting
- ⚠myelosuppression
RgIA Side Effects
- ⚠Transient autonomic effects
- ⚠off-target nicotinic blockade
- ⚠injection-site irritation
Research Overview
Didemnin B
Didemnin B showed strong cytotoxic and antiviral activity in early literature and became an important scaffold for later marine drug development. Its clinical progress was limited by toxicity, but it remains highly cited as a foundational marine depsipeptide.
RgIA
Scientific studies show RgIA can strongly inhibit alpha9alpha10 nicotinic signaling with high selectivity compared with many other nAChR ligands. It is widely used to probe peripheral sensory pathways and inflammation-linked pain mechanisms.
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