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Acute Promyelocytic LeukemiaPhase 1NCT04996030

A Study for Oral SY-2101 for Participants With Acute Promyelocytic Leukemia

A Phase 1 study testing SY-2101 and Arsenic Trioxide in people with Acute Promyelocytic Leukemia, run by Syros Pharmaceuticals at 8 sites in United States.

Suspended

Paused. Enrolment is on hold for now and may resume.

Official record
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Trial summary

SY-2101 is being studied as a treatment for participants with a type of leukemia called acute promyelocytic leukemia (APL). SY-2101 is an oral formulation of a drug called arsenic trioxide (ATO). Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Acute Promyelocytic Leukemia
What is being tested?
SY-2101 and Arsenic Trioxide
Could I receive a placebo?
No, everyone receives an active treatment
How many people
16 participants
Where
8 sitesUnited States
Study dates
17 Sep 2021to Apr 2024
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Participants must have a diagnosis of APL characterized by the presence of the t(15;17) translocation or PML/RARA gene expression via reverse transcription polymerase chain reaction (RT-PCR), fluorescence in situ hybridization (FISH), or cytogenetics. Participants with low-risk APL may be eligible for all parts of this study; participants with high-risk APL are only eligible for the single-dose modules if they have completed a treatment regimen that included ATO within 6 months prior to the Screening Visit.
  • Participants must have received ATO plus ATRA induction therapy and must have received or be eligible and planning to receive consolidation therapy with ATO plus ATRA in alignment with National Comprehensive Cancer Network (NCCN) guidelines for low-risk APL prior to their enrollment in the study; or participants must have completed a treatment regimen that included ATO within 6 months prior to the Screening Visit.
  • Participants must be able to tolerate full dose ATO per NCCN guidelines.
  • Participants must be in morphological complete remission (CR) at the end of induction.
  • Participants must have a serum or high-sensitivity urine pregnancy test (for females of childbearing potential) that is negative at the Screening Visit and immediately prior to initiation of study treatment (first dose of study drug).

Who cannot join

  • Participants who have demonstrated relapse and therefore are not eligible for further consolidation.
  • Participants currently receiving treatment for a non-APL malignancy (not including basal cell carcinoma, non-melanoma skin cancer, cervical carcinoma in situ, or localized prostate cancer treated with hormone therapy). Participants with history of other cancers should be free of disease for at least 2 years prior to the Screening Visit.
  • Participants with an active, life-threatening, or clinically-significant uncontrolled systemic infection requiring hospitalization.
  • Immunocompromised participants with increased risk of opportunistic infections, including known human immunodeficiency virus (HIV)-positive participants with cluster of differentiation 4 (CD4) counts ≤350 cells/millimeters (mm^3) or history of opportunistic infection in the last 12 months.
  • Participants with a known active or chronic hepatitis B or active hepatitis C virus (HCV) infection. Participants with a history of HCV infection who have completed curative therapy for HCV at least 12 weeks before the Screening Visit and have a documented undetectable viral load at the Screening Visit are eligible for enrollment.
  • Participants who have not adequately recovered from a major surgery within 4 weeks of starting study drug administration.
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  • Participants who received any other investigational agents within 4 weeks of the Screening Visit or <5 half-lives since completion of previous investigational therapy have elapsed, whichever is shorter.
  • Participants who have a hypersensitivity to arsenic.
  • Participants who have experienced the following Grade ≥3 non-hematologic toxicities associated with ATO administration: QT prolongation, hepatotoxicity, neurotoxicity, cardiac function abnormalities. Participants who experienced other severe and life-threatening clinically-significant ATO-related AEs that are considered, in the judgement of the investigator, to increase participant risk with continued ATO treatment are also excluded.
  • Other inclusion/exclusion criteria may apply.

Trial locations and contacts

8 sites in 1 country.

8 sites in 1 country

United States8 sites
  • University of Michigan

    Ann Arbor, Michigan, 48109

  • John Hopkins University

    Baltimore, Maryland, 21287

  • University of Alabama at Birmingham

    Birmingham, Alabama, 35294

  • Northwestern Memorial Hospital

    Chicago, Illinois, 60208

  • University of Texas Southwestern Medical Center

    Dallas, Texas, 75390

  • The University of Texas MD Anderson Cancer Center

    Houston, Texas, 77030

  • Weill Cornell Medical College

    New York, New York, 10065

  • UPMC Hillman Cancer Center

    Pittsburgh, Pennsylvania, 15232

Other trials in United States

About this study

Official title: An Open-label Phase 1 Study to Evaluate Pharmacokinetics, Safety, and Tolerability of SY-2101 in Adult Patients With Acute Promyelocytic Leukemia

SY-2101 is being studied as a treatment for participants with a type of leukemia called acute promyelocytic leukemia (APL). SY-2101 is an oral formulation of a drug called arsenic trioxide (ATO). ATO is already used to treat APL in a formulation that is given as an intravenous (IV) infusion (through a needle in the arm). SY-2101 is a formulation of ATO that is taken orally (by mouth).

This trial will include participants with APL in remission, who are receiving standard of care (SOC) treatment with all-trans-retinoic acid (ATRA) and IV ATO, during the consolidation phase of chemotherapy or within the past 6 months. The participants in this trial will receive continued treatment with ATO and ATRA to help keep their cancer from coming back. There will be some weeks when participants receive IV ATO and others when they receive SY-2101 (ATO taken orally). Participants with high-risk APL may be eligible for part 1 or 4 of the study for the 6 months following completion of their standard of care ATRA and ATO treatment.

Read the detailed description

This study includes 4 parts. In the first part, enrolled participants will receive a single dose of IV ATO, followed a week later by a single dose of SY-2101, SY-2101 will be administered to participants in either a fed or a fasted condition. A week after that, participants will receive a second, a single dose of SY-2101, with some participants taking this dose in a fed state and other participants taking this dose in a fasted condition. After each of these doses, blood draws and safety assessments will be performed. In the second part, enrolled participants will receive IV ATO according to the standard of care, with collection of blood and safety assessments. In the third part, enrolled participants who are documented to be in molecular remission will receive SY-2101 in place of IV ATO during the 4th cycle of consolidation, with the collection of blood and safety assessments throughout the cycle. In the fourth part, enrolled participants will receive two single-dose treatments of SY-2101 approximately one week apart.

Being tested
SY-2101, Arsenic Trioxide
Medical subject headings
Leukemia, Promyelocytic, Acute

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SY-2101Drug

    Also called Oral ATO, Oral Arsenic Trioxide

    SY-2101 will be administered per dose and schedule specified in arm description.

  • Arsenic TrioxideDrug

    Also called IV ATO, Trisenox®, IV Arsenic Trioxide

    IV ATO will be administered per dose and schedule specified in arm description.

Study groups in NCT04996030
Study groupRoleWhat they receive
Single-Dose PK Module: Sequence 1ExperimentalParticipants will receive IV ATO in a fasted state on Day 1, SY-2101 in a fed state on Day 8, and SY-210 in a fasted state on Day 15 during Weeks 6, 7, and 8 of any consolidation cycle being received as part of SOC treatment consolidation cycle.
Receives: Drug: SY-2101; Drug: Arsenic Trioxide
Single-Dose PK Module: Sequence 2ExperimentalParticipants will receive IV ATO in a fasted state on Day 1, SY-2101 in a fasted state on Day 8, and SY-2101 in a fed state on Day 15 during Weeks 6, 7, and 8 of any consolidation cycle being received as part of SOC treatment consolidation cycle.
Receives: Drug: SY-2101; Drug: Arsenic Trioxide
Single-Dose PK Comparability ModuleExperimentalParticipants will receive two single-dose treatments of SY-2101, with separated from one another by approximately 1 week and separated from any preceding IV ATO dose by at least 72 hours.
Receives: Drug: SY-2101
Multiple-Dose IV ModuleExperimentalParticipants will receive IV ATO, once daily (QD), 5 days/week for 28 days as a part of at least one cycle (Weeks 1 through 4) of SOC treatment consolidation.
Receives: Drug: Arsenic Trioxide
Multiple-Dose Oral ModuleExperimentalParticipants will receive SY-2101, QD, 5 days/week for 28 days as a part of one cycle (Cycle 4; Weeks 1 through 4) of SOC treatment consolidation.
Receives: Drug: SY-2101

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Single-Dose Module: Maximum Observed Plasma Concentration (Cmax) of SY-2101

    Measured: Predose and up to 168 hours postdose

  2. Single-Dose Module: Area Under the Curve (AUC) of SY-2101

    Measured: Predose and up to 168 hours postdose

  3. Multiple-Dose Module: Cmax of SY-2101

    Measured: Predose and up to 6 hours postdose on Day 5 and up to 4 hours postdose on Day 26

  4. Multiple-Dose Module: AUC of SY-2101

    Measured: Predose and up to 6 hours postdose on Day 5 and up to 4 hours postdose on Day 26

Secondary outcomes (5)
  1. Single-Dose Module: Cmax of ATO

    Measured: Predose and up to 168 hours postdose

  2. Single-Dose Module: AUC of ATO

    Measured: Predose and up to 168 hours postdose

  3. Multiple-Dose Module: Cmax of ATO

    Measured: Predose and up to 6 hours postdose on Day 5 and up to 4 hours postdose on Day 26

  4. Multiple-Dose Module: AUC of ATO

    Measured: Predose and up to 6 hours postdose on Day 5 and up to 4 hours postdose on Day 26

  5. Number of Participants With Adverse Events

    Measured: up to Day 23 for single-dose module and up to Day 56 for multiple-dose module

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Aug 2021
  2. Study start17 Sep 2021
  3. Primary completion3 Jan 2024
  4. Study completionApr 2024 (estimated)

Why it stopped: Prioritization

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Model description
The characterization of single-dose PK will be conducted in an open-label, randomized crossover 3-period, 3-treatment, 2-sequence design, separated by ≥1 week of washout.
Masking
None (open label)
Enrolment
16 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04996030
Sponsor's protocol ID
SY-2101-101
Status last verified
Jan 2024
First submitted
3 Aug 2021
Last updated
23 Jan 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Ravandi F, Rangaraju S, Kantarjian H, Garcia-Manero G, Yilmaz M, Baker K, Hall T, Grabenstein J, Roy P, Zamboni BA, Zamboni WC, Warlick E, Kelly M, Roth DA, Ghiaur G. A pharmacokinetic and safety study of oral arsenic trioxide in patients with acute promyelocytic leukemia. Blood Adv. 2025 May 13;9(9):2136-2143. doi: 10.1182/bloodadvances.2024015453.

    PubMed 40020161

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing SY-2101 and Arsenic Trioxide in people with Acute Promyelocytic Leukemia, run by Syros Pharmaceuticals at 8 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: paused, as of the sponsor's last update on 23 Jan 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 8 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Single-Dose Module: Maximum Observed Plasma Concentration (Cmax) of SY-2101 (time frame: Predose and up to 168 hours postdose). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04996030, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Jan 2024.

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