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An Open-Label, Dose Escalation and Dose Expansion Trial Evaluating the Safety, Pharmacokinetics, Pharmacodynamics, and Clinical Activity of Orally Administered CA-4948 in Patients With Relapsed or Refractory Primary Central Nervous System Lymphoma

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2024-513312-95-00
Acronym
CA-4948-101
Enrollment
69
Registered
2024-07-01
Start date
2023-05-30
Completion date
Unknown
Last updated
2025-09-25

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

Conditions

Part A2. Relapsed or Refractory Hematologic Malignancy. (Enrolment is closed), Part B+C. Primary central nervous system lymphoma (PCNSL)

Brief summary

Part A1 and Part A2: •Incidence of DLTs •Incidence of adverse events (AEs) •Clinically significant changes in vital signs and laboratory parameters • Clinically significant changes from baseline in electrocardiograms (ECGs), Part B: ORR: the percentage of patients achieving CR, unconfirmed complete response (CRu), or PR (as determined by an independent review committee [IRC] assessment for Cohort 2 only) using the International Primary CNS Lymphoma Collaborative Group (IPCG) Response Criteria guidelines for PCNSL (Abrey et al, 2005), Part C: ORR: the percentage of patients achieving CR, CRu, or PR using the IPCG Response Criteria guidelines for PCNSL (Abrey et al, 2005)

Detailed description

Part A1 and Part A2: • Maximum observed plasma concentration (Cmax) • Minimum observed plasma concentration (Cmin) • Time after dosing that a drug is present at the maximum concentration in serum (Tmax) • Area under the concentration-time curve (AUC) • Terminal elimination half-life (T1/2), Part A1 and Part A2: • ORR: complete response (CR) + partial response (PR) • Waldenström macroglobulinemia/ lymphoplasmacytic lymphoma (WM/LPL) ORR: CR + PR + very good partial response (VGPR), Part A1 and Part A2: • DOR: time from CR or PR to first documentation of relapse, disease progression, or death from any cause • WM/LPL DOR: time from CR, PR, or VGPR to first documentation of relapse, disease progression, or death from any cause, Part A1 and Part A2: • DCR: PR + CR + stable disease • WM/LPL DCR: CR + PR + VGPR + stable disease, Part A1 and Part A2: • PFS: time from date of first dose of study treatment until first documentation of relapse, disease progression, or death from any cause, Part A1 and Part A2: OS: time from date of first dose of study treatment until death from any cause, Part B+C: DOR:the time from the date CR, CRu, or PR is achieved to the date of first documented disease progression (as determined by an IRC assessment for Cohort 2 only) or death due to any cause, whichever occurs first/PFS:the time from the date of the first dose of study treatment to the date of the first documented disease progression (as determined by an IRC assessment for Cohort 2 only) or death due to any cause, whichever occurs first/OS:the time from date of 1st dose until death, Part B+C: Incidence of treatment-emergent adverse events (TEAEs) and treatment-related AEs, physical examinations, vital signs, ECGs, and laboratory values, Part B+C: PK parameters including but not limited to AUC, Cmax, Tmax, and T1/2 for emavusertib and ibrutinib

Interventions

DRUGIBRUTINIB

Sponsors

Curis Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Part A1 and Part A2: •Incidence of DLTs •Incidence of adverse events (AEs) •Clinically significant changes in vital signs and laboratory parameters • Clinically significant changes from baseline in electrocardiograms (ECGs), Part B: ORR: the percentage of patients achieving CR, unconfirmed complete response (CRu), or PR (as determined by an independent review committee [IRC] assessment for Cohort 2 only) using the International Primary CNS Lymphoma Collaborative Group (IPCG) Response Criteria guidelines for PCNSL (Abrey et al, 2005), Part C: ORR: the percentage of patients achieving CR, CRu, or PR using the IPCG Response Criteria guidelines for PCNSL (Abrey et al, 2005)—

Secondary

MeasureTime frame
Part A1 and Part A2: • Maximum observed plasma concentration (Cmax) • Minimum observed plasma concentration (Cmin) • Time after dosing that a drug is present at the maximum concentration in serum (Tmax) • Area under the concentration-time curve (AUC) • Terminal elimination half-life (T1/2), Part A1 and Part A2: • ORR: complete response (CR) + partial response (PR) • Waldenström macroglobulinemia/ lymphoplasmacytic lymphoma (WM/LPL) ORR: CR + PR + very good partial response (VGPR), Part A1 and Part A2: • DOR: time from CR or PR to first documentation of relapse, disease progression, or death from any cause • WM/LPL DOR: time from CR, PR, or VGPR to first documentation of relapse, disease progression, or death from any cause, Part A1 and Part A2: • DCR: PR + CR + stable disease • WM/LPL DCR: CR + PR + VGPR + stable disease, Part A1 and Part A2: • PFS: time from date of first dose of study treatment until first documentation of relapse, disease progression, or death from any cause, Part —

Countries

Czechia, France, Italy, Poland, Spain

Outcome results

None listed

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