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Clinical Trials in the USA / NCT05761223
Recruiting Phase 1/2

A Phase I/II, Open-label Study to Investigate the Safety, Tolerability, PK, and Preliminary Efficacy of FB849

NCT05761223 · tracked via the Priya Life Science USA tracker
Sponsor
1ST Biotherapeutics, Inc.
Phase
Phase 1/2
Started
2023-12-13
Last updated
2025-08-17

Condition(s) studied

Advanced Solid Tumor

Investigational drug(s) / intervention(s)

Phase Ia dose-escalation part of FB849 MonotherapyPhase Ib dose-expansion of FB849 monotherapyPhase IIb dose-escalation part of FB849 in Combination with PembrolizumabPhase IIb dose-expansion part of FB849 in Combination with Pembrolizumab (Type A cancer)Phase IIb dose-expansion part of FB849 in Combination with Pembrolizumab (Type B cancer)Phase IIb dose-expansion part of FB849 in Combination with Pembrolizumab (Type C cancer)

Phase Ia dose-escalation part of FB849 Monotherapy: At a given level dose once daily

Phase Ib dose-expansion of FB849 monotherapy: At recommended dose for expansion cohort once daily

Phase IIb dose-escalation part of FB849 in Combination with Pembrolizumab: At recommended dose for expansion cohort once daily in combination with pembrolizumab

Phase IIb dose-expansion part of FB849 in Combination with Pembrolizumab (Type A cancer): At recommended dose for expansion cohort once daily in combination with pembrolizumab

Phase IIb dose-expansion part of FB849 in Combination with Pembrolizumab (Type B cancer): At recommended dose for expansion cohort once daily in combination with pembrolizumab

Phase IIb dose-expansion part of FB849 in Combination with Pembrolizumab (Type C cancer): At recommended dose for expansion cohort once daily in combination with pembrolizumab

Study summary

This is the first-in-human, multicenter, open-label Phase I/II study to investigate the safety, tolerability, pharmacokinetics (PK), pharmacodynamics, and preliminary efficacy of FB849 alone and in combination with pembrolizumab in subjects with advanced solid tumors for whom no standard therapy is available.

Eligibility

Sex
ALL
Min age
18 Years
Max age
Healthy volunteers
No
Inclusion Criteria: * Subject should understand, sign, and date the written ICF prior to screening. * Male or female aged 18 years or older. * Subjects must have at least 1 measurable target lesion according to RECIST version 1.1. * Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1 * Life expectancy ≥ 3 months in the opinion of the investigator. * Adequate organ function and bone marrow function as indicated by the following screening assessments performed within 14 days prior to the first dose of study treatment Exclusion Criteria: * Known allergy or hypersensitivity to any component of the study treatment. * Has a known additional malignancy that is progressing or has required active treatment. * Has abnormal or inadequately controlled endocrine function. * Inability to take oral medication or significant nausea and vomiting, malabsorption, external biliary shunt, or significant bowel resection that would preclude adequate absorption of oral medication. * Previous anti-cancer therapy, including chemotherapy (chemotherapy with nitrosourea or mitomycin should be at least 6 weeks prior to initiation of study treatment), radiotherapy, molecular targeted therapy, or other investigational drugs received ≤ 4 weeks; endocrine therapy ≤ 2 weeks or ≤ 5-half-lives (whichever is shorter) prior to initiation of study treatment.

Primary outcome measure(s)

Trial sites (5)

FacilityCityRegionStatus
Cleveland Clinic Cleveland Ohio Recruiting
Mary Crowley Cancer Research Center Dallas Texas Recruiting
NEXT Oncology San Antonio San Antonio Texas Recruiting
Next Oncology Virginia Fairfax Virginia Recruiting
Summit Cancer Centers - Spokane Valley Spokane Washington Recruiting

Other trials for the same condition

Official registry record

This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.

View NCT05761223 on ClinicalTrials.gov ↗ ← All trials in the USA