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A Study to Assess the Safety, Pharmacokinetics, and Efficacy of Intravenous (IV) ABBV-303, as Monotherapy and in Combination With IV Infused Budigalimab (ABBV-181), in Adults With Advanced Solid Tumors

A Phase 1 First-in-Human, Open-Label Study Evaluating the Safety, Pharmacokinetics, and Efficacy of ABBV-303, as Monotherapy and in Combination With Budigalimab (ABBV-181), in Adult Subjects With Advanced Solid Tumors

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06158958
Enrollment
27
Registered
2023-12-06
Start date
2024-02-06
Completion date
2025-10-22
Last updated
2025-10-27

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

Conditions

Solid Tumors

Keywords

Solid Tumors, Non-Small Cell Lung Cancer, NSCLC, Renal Cell Carcinoma, RCC, Head and Neck Squamous Cell Carcinoma, HNSCC, ABBV-303, ABBV-181, Budigalimab

Brief summary

Cancer is a condition where cells in a specific part of body grow and reproduce uncontrollably. The purpose of this study is to assess safety, tolerability, pharmacokinetics and preliminary efficacy of ABBV-303 as a monotherapy and in combination with budigalimab, (ABBV-181). ABBV-303 is an investigational drug being developed for the treatment of solid tumors. There are multiple treatment arms in this study. Participants will either receive ABBV-303 as a single agent or in combination with budigalimab (another investigational drug) at different doses. Approximately 181 adult participants will be enrolled in the study across sites worldwide. In Part A, ABBV-303 will be intravenously (IV) infused in escalating doses as a monotherapy in participants with relapsed (R)/refractory (R) solid tumors, R/R non-small cell lung cancer (NSCLC), R/R renal cell carcinoma (RCC), R/R head and neck squamous cell carcinoma (HNSCC), or R/R tissue agnostic participants with mesenchymal epithelial transition. In Part B, ABBV-303 in combination with budigalimab will be IV infused in participants with R/R solid tumors or NSCLC. The estimated duration of the study is up to 3 years. There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at a hospital or clinic and may require frequent medical assessments, blood tests, and scans.

Interventions

DRUGABBV-303

Intravenous (IV) Infusion

DRUGBudigalimab

IV Infusion

Sponsors

AbbVie
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Participants with Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1. * Laboratory values meeting the protocol's criteria within the screening period (-28 days) prior to the first dose of study drug. * Participants with a diagnosis of a malignant solid tumor by histology (World Health Organization \[WHO\] criteria). * Participants with measurable disease per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1).

Exclusion criteria

* Unresolved Grade \> 1 adverse events (AEs) from prior anti-cancer therapy except for alopecia. * Active systemic or uncontrolled local bacterial, fungal, or viral infection requiring antimicrobial therapy. * History of hypersensitivity to the active ingredients or any excipients of ABBV-303 and budigalimab (ABBV-181). * Body weight \< 35 kg.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With Adverse Events (AE)Up to 3 YearsAn AE is any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have a causal relationship with this treatment.

Secondary

MeasureTime frameDescription
Objective Response Rate (ORR) per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1Up to 3 YearsORR defined as percentage of participants with confirmed best overall response of Confirmed complete response (CR) and partial response (PR) per investigator review according to RECIST version 1.1.
Duration of Response (DOR) for Participants with Confirmed CR/PR per RECIST v1.1Up to 3 YearsDOR is defined for participants achieving a confirmed CR+PR as the time from the initial response of CR+PR per investigator review according to RECIST 1.1 criteria to disease progression or death of any cause, whichever occurs earlier.
Progression-free survival (PFS)Up to 3 YearsPFS is defined as time from first study treatment to a documented disease progression according to RECIST version 1.1, as determined by the investigator, or death due to any cause, whichever occurs earlier.
Overall survival (OS)Up to 3 YearsOS is defined as time from first study treatment to death due to any cause.
ORR per Immune-Mediated Response Evaluation Criteria in Solid Tumors (iRECIST)Up to 3 YearsORR defined as percentage of participants with confirmed best overall response of Confirmed complete response (CR) and partial response (PR) per investigator review according to iRECIST version 1.1.

Countries

Israel, Japan, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026