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ALRN-6924 in combination with cytarabine

Aileron Therapeutics, Inc. · Phase 1 active Small molecule ✓ Verified May 2026 Quality 45/100

ALRN-6924 in combination with cytarabine is a MDM2/MDMX inhibitor combination therapy Small molecule drug developed by Aileron Therapeutics, Inc.. It is currently in Phase 1 development. Also known as: ALRN-6924 in combination with Ara-C.

ALRN-6924 is a stapled peptide that inhibits MDM2 and MDMX proteins to restore p53 tumor suppressor activity, combined with cytarabine DNA synthesis inhibition.

ALRN-6924 is a protein modality being studied in combination with cytarabine for various conditions, including Acute Myeloid Leukemia, Myelodysplastic Syndromes, Leukemia, Brain Tumor, and Solid Tumor. The combination of ALRN-6924 and cytarabine is being investigated in a Phase 1/1b clinical trial (NCT02909972) to determine its safety and tolerability.

Likelihood of approval
9.6% vs 9.6% industry baseline
If approved by FDA: likely 2033–2036
Steps remaining: Phase 2 → Phase 3 → NDA/BLA submission
Confidence: Medium
Why this estimate
  • Baseline phase 1 → approval rate +9.6pp
    Industry-wide phase 1 drugs reach approval ~9.6% of the time (BIO/Informa 2023 industry benchmark across all therapeutic areas).
Predicted approval windows by jurisdiction (conditional on FDA approval)
Regulator Country Likely year Lag vs FDA
FDA US 2033–2036
EMA EU 2034–2037 +0.7 yr
MHRA GB 2034–2037 +0.7 yr
Health Canada CA 2034–2038 +0.9 yr
TGA AU 2034–2038 +1.2 yr
PMDA JP 2034–2038 +1.5 yr
NMPA CN 2035–2039 +2.3 yr
MFDS KR 2034–2038 +1.4 yr
CDSCO IN 2034–2039 +1.8 yr
ANVISA BR 2035–2039 +2.3 yr

Hover any row for the lag rationale. Lag estimates are reduced when the drug has FDA Breakthrough or EMA PRIME designation (sponsors file globally in parallel).

Estimate based on the BIO/Informa industry phase transition rates plus per-drug modifiers for therapeutic area, sponsor type, FDA designations, mechanism, and trial design. Per-jurisdiction lags from Tufts CSDD international approval studies. Not investment, clinical or regulatory advice. Methodology: /methodology#likelihood.

At a glance

Generic nameALRN-6924 in combination with cytarabine
Also known asALRN-6924 in combination with Ara-C
SponsorAileron Therapeutics, Inc.
Drug classMDM2/MDMX inhibitor combination therapy
ModalitySmall molecule
PhasePhase 1

Mechanism of action

ALRN-6924 is a cell-permeating stapled peptide that binds to and inhibits both MDM2 and MDMX, negative regulators of the p53 tumor suppressor protein. By blocking these interactions, it restores p53 function to induce cancer cell death. Cytarabine is a nucleoside analog that inhibits DNA synthesis, providing complementary anti-cancer activity.

Approved indications

Common side effects

No common side effects on file.

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

Competitive intelligence

For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape:

Frequently asked questions about ALRN-6924 in combination with cytarabine

What is ALRN-6924 in combination with cytarabine?

ALRN-6924 in combination with cytarabine is a MDM2/MDMX inhibitor combination therapy drug developed by Aileron Therapeutics, Inc..

How does ALRN-6924 in combination with cytarabine work?

ALRN-6924 is a stapled peptide that inhibits MDM2 and MDMX proteins to restore p53 tumor suppressor activity, combined with cytarabine DNA synthesis inhibition.

Who makes ALRN-6924 in combination with cytarabine?

ALRN-6924 in combination with cytarabine is developed by Aileron Therapeutics, Inc. (see full Aileron Therapeutics, Inc. pipeline at /company/aileron-therapeutics-inc).

Is ALRN-6924 in combination with cytarabine also known as anything else?

ALRN-6924 in combination with cytarabine is also known as ALRN-6924 in combination with Ara-C.

What drug class is ALRN-6924 in combination with cytarabine in?

ALRN-6924 in combination with cytarabine belongs to the MDM2/MDMX inhibitor combination therapy class. See all MDM2/MDMX inhibitor combination therapy drugs at /class/mdm2-mdmx-inhibitor-combination-therapy.

What development phase is ALRN-6924 in combination with cytarabine in?

ALRN-6924 in combination with cytarabine is in Phase 1.

Related

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing