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A phase 1/2 multicenter open-label study to investigate treatment of hydroxyurea (HU) in combination with valproic acid (VPA) or 6- mercaptopurine (6-MP) in combination with VPA in patients with acute myeloid leukemia (AML) or high-risk myelodysplastic syndrome (HR-MDS) considered unfit for standard chemotherapy

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2022-501992-15-00
Enrollment
48
Registered
2023-05-08
Start date
2024-05-21
Completion date
Unknown
Last updated
2025-09-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute Myeloid Leukemia (AML)

Brief summary

Safety and tolerability assessed by monitoring the incidence, frequency and severity of AEs, including evaluation of the following: i. DLTs ii. Physical examinations iii. Clinical laboratory blood and urine samples, Determine clinical benefit (as defined by this protocol) in patients receiving hydroxyurea in combination with valproic acid, Determine clinical benefit* in patients receiving 6-mercaptopurine in combination with valproic acid, Baseline and longitudinal ECOG status of the patient (Eastern Cooperative Oncology Group)

Detailed description

(a) The percentage of patients with clinical benefit after 3 and 6 cycles in each arm ( A1, A2, B1, B2) (b) Overall response rate (ORR; defined as the percentage of patients with a response of CR, CRh, CRi, MLFS, PR or no response as assessed by ELN response criteria 2022) (c) Duration of clinical benefit (d) Time to progression (e) Overall Survival (OS), Usage of health-related quality of life questionnaires: i. EQ -5D-5L ii. SF-36, QLQ-C30 iii. NCI- PRO-CTCAE (b) Lower number of hospital admissions and blood-/platelet transfusions during and after study investigation compared to baseline.

Interventions

DRUGVALPROIC ACID
DRUGMERCAPTOPURINE

Sponsors

Helse Bergen HF
Lead SponsorOTHER

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Safety and tolerability assessed by monitoring the incidence, frequency and severity of AEs, including evaluation of the following: i. DLTs ii. Physical examinations iii. Clinical laboratory blood and urine samples, Determine clinical benefit (as defined by this protocol) in patients receiving hydroxyurea in combination with valproic acid, Determine clinical benefit* in patients receiving 6-mercaptopurine in combination with valproic acid, Baseline and longitudinal ECOG status of the patient (Eastern Cooperative Oncology Group)

Secondary

MeasureTime frame
(a) The percentage of patients with clinical benefit after 3 and 6 cycles in each arm ( A1, A2, B1, B2) (b) Overall response rate (ORR; defined as the percentage of patients with a response of CR, CRh, CRi, MLFS, PR or no response as assessed by ELN response criteria 2022) (c) Duration of clinical benefit (d) Time to progression (e) Overall Survival (OS), Usage of health-related quality of life questionnaires: i. EQ -5D-5L ii. SF-36, QLQ-C30 iii. NCI- PRO-CTCAE (b) Lower number of hospital admissions and blood-/platelet transfusions during and after study investigation compared to baseline.

Countries

Norway

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026