ALRN-6924 vs Apratoxin A

Head-to-head comparison of ALRN-6924 (ALRN-6924 dual MDM2/MDMX stapled p53 mimetic peptide) and Apratoxin A (Apratoxin A) — benefits, dosing, side effects, research data, and where to buy.

Research Score

PropertyALRN-6924Apratoxin A
CategoryExperimentalExperimental
Full NameALRN-6924 dual MDM2/MDMX stapled p53 mimetic peptideApratoxin A
Molecular WeightN/AN/A
Half-LifeHours to days depending on formulationN/A
Amino AcidsN/AN/A
Typical DoseVaries by clinical protocolN/A in humans; nanomolar in vitro
RouteIntravenous/SubcutaneousIntraperitoneal / Intravenous (preclinical)
Purity≥98%≥98%
Studies Count40140
Research StatusClinicalPre-clinical

ALRN-6924 Benefits

  • p53 reactivation
  • dual MDM2/MDMX inhibition
  • protease resistance
  • tumor cell apoptosis

Apratoxin A Benefits

  • antineoplastic
  • anti-angiogenic
  • Sec61 inhibition
  • anti-proliferative

ALRN-6924 Dosing

Clinical trial protocol dosing|Intermittent administration|Research-only escalation

Apratoxin A Dosing

preclinical in vitro nanomolar use|animal studies only|no human dosing established

ALRN-6924 Side Effects

  • nausea
  • fatigue
  • myelosuppression

Apratoxin A Side Effects

  • hepatotoxicity
  • general cytotoxicity
  • GI toxicity

Research Overview

ALRN-6924

ALRN-6924 is one of the best-known stapled peptide therapeutics and has advanced into human oncology studies. Literature shows that hydrocarbon stapling can improve target affinity, serum stability, and cellular activity for this p53-mimetic scaffold.

Apratoxin A

Apratoxin A is a well-studied lead compound for targeting secretory and membrane protein biogenesis in cancer cells. Medicinal chemistry programs around apratoxins focus on improving selectivity and reducing hepatotoxicity while preserving potency.

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Common Stacking Partners

ALRN-6924 stacks with:

venetoclaxcisplatindoxorubicin

Apratoxin A stacks with:

gemcitabinedocetaxelEGFR inhibitors
stapled-peptidep53mdm2mdmxoncologymarine-derivedcyanobacteriadepsipeptideSec61