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RecruitingLast updated: 22 June 2026

Apollo: This study is recruiting people with relapsed or refractory acute myeloid leukaemia (AML) or myelodysplastic syndrome (MDS) to evaluate a new drug (called APL-4098) when given alone and in combination with chemotherapyA Phase 1/2 Study to Assess the Safety and Antitumor Activity of APL-4098 Alone and/or in Combination With Azacitidine in Adults With Relapsed or Refractory (R/R) Acute Myeloid Leukemia (AML), Myelodysplastic Syndrome/AML (MDS/AML) or Myelodysplastic Syndrome With Excess Blasts (MDS-EB)

Trial purpose

Medical clipboardCancer treatment

Tumor type

Blood Cancers Haematological

Age

People18+

Trial acronym

Apollo

Clinical summary

Summary

This is an early phase (Phase 1) trial testing a new drug called APL-4098 for people with certain blood cancers. It looks at how safe the drug is, what dose works best, and whether it helps control the cancer.

Who is it for?
You may be eligible if you are an adult with:

  • acute myeloid leukaemia (AML), or
  • myelodysplastic syndrome (MDS) (including MDS with excess blasts or MDS/AML)
  • your disease has come back (relapsed) or not responded to previous treatment (refractory)

What treatment is being studied?
Participants may receive:

  • APL-4098 alone (a new targeted therapy), or
  • APL-4098 + azacitidine (standard chemotherapy), or
  • APL-4098 + azacitidine + venetoclax

Treatment is given in 28-day cycles and APL-4098 is taken orally as a tablet.

Conditions

This trial is treating people with acute myeloid leukaemia or myelodysplastic syndrome

Eligibility

Inclusion

  • 18 years or older
  • Confirmed diagnosis of relapsed refractory acute myeloid leukemia (R/R AML), myelodysplastic syndrome (MDS)/ AML, or MDS-excess blasts (MDS-EB) with the following characteristics: - R/R AML (primary or secondary, including treatment-related), participant is intolerant to, or considered ineligible for available therapies known to provide clinical benefit.
  • WBC count ≤ 25,000/microliter
  • ECOG Performance Status of ≤ 2
  • Weight ≥ 40kg
  • Female participants of childbearing potential must have negative serum pregnancy test at screening; must not plan to become pregnant or have ova harvested or breastfeed while on study; must be willing to use specific contraception or avoid intercourse
  • Male participants must be willing to use specific contraception and not plan to impregnant a female partner or donate sperm while on study
  • Participant must be willing and able to provide written informed consent and to comply with the requirements of the trial

Exclusion

  • Certain prior therapies such as: received an allogeneic stem cell transplant within 6 months of screening, received an autologous stem cell transplant within 3 months of screening, received any anti-cancer treatments within 2 weeks of Cycle 1 Day 1, prior radiation therapy within 4 weeks of screening
  • Certain medical conditions such as: other malignancies, myocardial infarction within 6 months of screening, symptomatic congestive heart failure, uncontrolled active infection, history of arterial thrombosis within 6 months of screening
  • Diagnostic assessments: Left ventricular ejection fraction < 45%, Fridericia's corrected QT interval > 470msec, Aspartate aminotransferase and/or alanine aminotransferase > 3 x upper limit of normal (ULN), total bilirubin > 1.5 x ULN, calculated or measured creatinine clearance < 45 mL/minute (multiply by 0.85 if female)
  • Infectious disease: HIV positive, active hepatitis B and/or C

Inclusion

  • You have had treatment, but your cancer has come back (relapsed or recurrent).
  • You have had treatment but your cancer has gotten worse or has not responded to the treatment you have been given.
  • You are able to swallow medication by mouth.

Exclusion

  • You have certain types of non-cancer medical conditions.
  • You have had certain treatments, surgical procedures or drugs.
Message

Clinical trials have complex eligibility criteria, and other criteria may apply for this trial. Ask your doctor about whether this trial could be right for you.

Participating hospitals

Recruiting hospitals

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More information

Trial Identifiers

Information on this page is partially produced from ClinicalTrials.gov *. View further details about this trial on the registry via the links below:

Trial sponsor

Apollo Therapeutics Ltd

Scientific Title

A Phase 1/2 Study to Assess the Safety and Antitumor Activity of APL-4098 Alone and/or in Combination With Azacitidine in Adults With Relapsed or Refractory (R/R) Acute Myeloid Leukemia (AML), Myelodysplastic Syndrome/AML (MDS/AML) or Myelodysplastic Syndrome With Excess Blasts (MDS-EB)

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