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C4971006: A PHASE 1b/2, OPEN-LABEL STUDY OF PF-07901801 IN COMBINATION WITH GLOFITAMAB AFTER A FIXED, SINGLE DOSE OF OBINUTUZUMAB IN PARTICIPANTS WITH RELAPSED/REFRACTORY DIFFUSE LARGE B CELL LYMPHOMA NOT ELIGIBLE FOR STEM CELL TRANSPLANTATION

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2022-502822-41-00
Acronym
C4971006
Enrollment
34
Registered
2025-04-30
Start date
Unknown
Completion date
2025-08-01
Last updated
2025-04-30

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

Conditions

Relapsed/Refractory Diffuse Large B Cell Lymphoma

Brief summary

Phase 1b: DLTs during the DLT observation period (21 days following Cycle 1 Day 1), Phase 2: OR per Lugano Response Classification Criteria 2014 as assessed by the investigator.

Detailed description

Phase 1b: AEs as characterized by type, frequency, severity (as graded by NCI CTCAE v5.0), timing, seriousness, and relationship to study treatment. Laboratory abnormalities as characterized by type, frequency, severity (as graded by NCI CTCAE v5.0), and timing. The severity of CRS and ICANS as assessed according to ASTCT criteria., Phase 1b: OR, DoR, CR, DoCR, and PFS per Lugano Response Classification Criteria 2014 as assessed by the investigator., Phase 1b: Pre- and post-dose concentrations of PF-07901801., Phase 1b: ADAs and NAbs against PF-07901801., Phase 2: DoR, CR, DoCR, and PFS by investigator in participants with measurable disease by investigator per Lugano Response Classification Criteria 2014., Phase 2: AEs as characterized by type, frequency, severity (as graded by NCI CTCAE V5.0), timing, seriousness, and relationship to study treatment. Laboratory abnormalities as characterized by type, frequency, severity (as graded by NCI CTCAE v5.0), and timing. The Severity of CRS and ICANS will be assessed according to ASTCT criteria., Phase 2: Pre- and post-dose concentrations of PF-07901801., Phase 2: ADAs and NAbs against PF-07901801.

Interventions

DRUGGazyvaro 1
DRUG000 mg concentrate for solution for infusion.

Sponsors

Pfizer Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Phase 1b: DLTs during the DLT observation period (21 days following Cycle 1 Day 1), Phase 2: OR per Lugano Response Classification Criteria 2014 as assessed by the investigator.

Secondary

MeasureTime frame
Phase 1b: AEs as characterized by type, frequency, severity (as graded by NCI CTCAE v5.0), timing, seriousness, and relationship to study treatment. Laboratory abnormalities as characterized by type, frequency, severity (as graded by NCI CTCAE v5.0), and timing. The severity of CRS and ICANS as assessed according to ASTCT criteria., Phase 1b: OR, DoR, CR, DoCR, and PFS per Lugano Response Classification Criteria 2014 as assessed by the investigator., Phase 1b: Pre- and post-dose concentrations of PF-07901801., Phase 1b: ADAs and NAbs against PF-07901801., Phase 2: DoR, CR, DoCR, and PFS by investigator in participants with measurable disease by investigator per Lugano Response Classification Criteria 2014., Phase 2: AEs as characterized by type, frequency, severity (as graded by NCI CTCAE V5.0), timing, seriousness, and relationship to study treatment. Laboratory abnormalities as characterized by type, frequency, severity (as graded by NCI CTCAE v5.0), and timing. The Severity of CRS a

Countries

France, Germany, Spain

Outcome results

None listed

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