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CompletedNCT06882031Updated Nov 18, 2025

Evaluate the Pharmacokinetics of Oral Arsenic Trioxide Solution Under Fasting and Fed Conditions, to Compare Intravenous Arsenic Trioxide, in Acute Promyelocytic Leukemia

A Phase 1 interventional study of Treatment A: Arsenic Trioxide (ATO) Intravenous and Treatment B: SDK001 (Arsenic Trioxide Oral solution) under faster state in Acute Promyelocytic Leukemia (APL), sponsored by SDK Therapeutics, Inc.. Completed at 1 site in Hong Kong. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-11-18.

Sponsored by SDK Therapeutics, Inc. · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Jun 2025, 1 year 4 months ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
12
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Randomized, Open-Label Study to evaluate the Pharmacokinetics of Oral Arsenic Trioxide Solution (SDK001) under Fasting and Fed Conditions, to Compare to IV Arsenic Trioxide

02

Conditions studied

  • Acute Promyelocytic Leukemia (APL)

Keywords

  • APL
03

In context

Leukemia, Promyelocytic, Acute

134 studies on the registry are indexed under Leukemia, Promyelocytic, Acute; 16 are open to participants now.

This study's enrollment of 12 is below the median of 51 across 100 interventional studies indexed under Leukemia, Promyelocytic, Acute.

Browse Leukemia, Promyelocytic, Acute studies →

Lead sponsor

SDK Therapeutics, Inc. is the lead sponsor of 2 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

-Diagnosis of APL characterized by the presence of the t(15;17) translocation or promyelocytic leukemia/retinoic acid receptor alpha gene expression

Exclusion criteria

Exclusion Criteria:

  • APL
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
12 participants (actual)

Study arms

  • Experimental
    Sequence 1

    In this treatment Arm 1, patients will receive one dose of the following interventions one week apart * A: IV Arsenic Trioxide under fasted state * B: SDK001 under fasted state * C: SDK001 under fed state * D: SDK001 with calcium carbonate under fasted state

    Drug: Treatment A: Arsenic Trioxide (ATO) Intravenous · Drug: Treatment B: SDK001 (Arsenic Trioxide Oral solution) under faster state · Drug: Treatment C: SDK001 (Arsenic Trioxide Oral solution) under fed state · Drug: Treatment D: SDK001 (Arsenic Trioxide Oral solution) with calcium carbonate

  • Experimental
    Sequence 2

    In this treatment Arm 2, patients will receive one dose of the following interventions one week apart * B: SDK001 under fasted state * D: SDK001 with calcium carbonate * A: IV Arsenic Trioxide under fasted state * C: SDK001 under fed state

    Drug: Treatment A: Arsenic Trioxide (ATO) Intravenous · Drug: Treatment B: SDK001 (Arsenic Trioxide Oral solution) under faster state · Drug: Treatment C: SDK001 (Arsenic Trioxide Oral solution) under fed state · Drug: Treatment D: SDK001 (Arsenic Trioxide Oral solution) with calcium carbonate

  • Experimental
    Sequence 3

    In this treatment Arm 3, patients will receive one dose of the following interventions one week apart * C: SDK001 under fed state * A: IV Arsenic Trioxide under fasted state * D: SDK001 with calcium carbonate * B: SDK001 under fasted state

    Drug: Treatment A: Arsenic Trioxide (ATO) Intravenous · Drug: Treatment B: SDK001 (Arsenic Trioxide Oral solution) under faster state · Drug: Treatment C: SDK001 (Arsenic Trioxide Oral solution) under fed state · Drug: Treatment D: SDK001 (Arsenic Trioxide Oral solution) with calcium carbonate

  • Experimental
    Sequence 4

    In this treatment Arm 4, patients will receive one dose of the following interventions one week apart * D: SDK001 with calcium carbonate * C: SDK001 under fed state * B: SDK001 under fasted state * A: IV Arsenic Trioxide under fasted state

    Drug: Treatment A: Arsenic Trioxide (ATO) Intravenous · Drug: Treatment B: SDK001 (Arsenic Trioxide Oral solution) under faster state · Drug: Treatment C: SDK001 (Arsenic Trioxide Oral solution) under fed state · Drug: Treatment D: SDK001 (Arsenic Trioxide Oral solution) with calcium carbonate

Interventions

06

What researchers measure

Primary outcomes

  1. A Randomized, Open Label, Single-Centre, Single-Dose, 4-Period, 4-Treatment Cross-over Study to Evaluate the Pharmacokinetics of Oral Arsenic Trioxide Solution (SDK001) to Intravenous Arsenic Trioxide

    Primary Endpoints • AUCinf of AsIII (the pharmacologically active species of ATO) for comparison of SDK001 versus IV ATO

    Time frame: Over 4 weeks in maintenance cycle

07

Study locations

1 site
  • The University of Hong Kong-Clinical Trial Centre Phase 1 Centre
    Hong Kong, Hong Kong
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Mar 2025 to primary completion in Jun 2025, 3 months.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 23, 2025
First posted
Mar 18, 2025
StartActual
Mar 11, 2025
Primary completionActual
Jun 25, 2025
CompletionActual
Jun 30, 2025
Last update
Nov 18, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Nov 18, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06882031
Lead sponsor
SDK Therapeutics, Inc.
Responsible party
Sponsor
First posted
Mar 18, 2025
Start date
Mar 11, 2025
Primary completion
Jun 25, 2025
Completion
Jun 30, 2025
Last update
Nov 18, 2025

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2025. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drugs tested here: Arsenic Trioxide · Calcium Carbonate

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