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Multicentre, open-label, phase 1/2 study of LB-208, selective antagonist of the serotonin 5-hydroxytryptamine receptor 1B (HTR1B), in adults with relapse or refractory (r/r) acute myeloid leukaemia (AML) and r/r higher-risk (HR) myelodysplastic syndrome (MDS)

Status
Not yet recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2025-523396-38-00
Enrollment
60
Registered
2026-04-15
Start date
Unknown
Completion date
Unknown
Last updated
2026-04-15

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

Conditions

Relapse or refractory (r/r) acute myeloid leukaemia (AML) and r/r higher-risk (HR) myelodysplastic syndrome (MDS)

Brief summary

Safety, and toxicity will be described by observed frequency and severity graded using the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE), version 5.0., including dose limiting toxicity (DLT) rate, adverse events (AEs), serious adverse events (SAEs), and AEs leading to discontinuation.

Detailed description

Plasma concentration-time profiles, and PK parameters of LB-208., Response according to the revised European LeukemiaNet (ELN) Response Criteria in AML (Döhner et al., 2022) and revised International Working Group 2023 (IWG 2023) in HR-MDS (Zeidan, Platzbecker, et al., 2023). Response for all patients will be assessed by the site Investigators.

Interventions

DRUGLB-208

Sponsors

Aop Orphan Pharmaceuticals GmbH
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Safety, and toxicity will be described by observed frequency and severity graded using the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE), version 5.0., including dose limiting toxicity (DLT) rate, adverse events (AEs), serious adverse events (SAEs), and AEs leading to discontinuation.

Secondary

MeasureTime frame
Plasma concentration-time profiles, and PK parameters of LB-208., Response according to the revised European LeukemiaNet (ELN) Response Criteria in AML (Döhner et al., 2022) and revised International Working Group 2023 (IWG 2023) in HR-MDS (Zeidan, Platzbecker, et al., 2023). Response for all patients will be assessed by the site Investigators.

Outcome results

None listed

Source: EU CTIS · Data processed: Apr 16, 2026