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A Study of ADRX-0706 in Select Advanced Solid Tumors

A Phase 1a/b Study of ADRX-0706 in Subjects With Select Advanced Solid Tumors

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06036121
Enrollment
144
Registered
2023-09-13
Start date
2023-09-26
Completion date
2026-12-31
Last updated
2025-08-17

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

Conditions

Cervical Cancer, Solid Tumors, Triple Negative Breast Cancer (TNBC), Urothelial Cancer

Keywords

urothelial cancer, triple negative breast cancer, cervical cancer, ADC

Brief summary

The primary purpose of this study is to assess the safety, tolerability, and pharmacokinetics, and to identify the optimal dose of ADRX-0706 in patients with select advanced solid tumors.

Detailed description

This is a 2 part study. The Phase 1a will consist of a dose escalation of ADRX-0706 to evaluate initial safety and tolerability in patients with select advanced solid tumors, and to identify the recommended dose to be used in the Phase 1b. The Phase 1b will further evaluate the safety and tolerability, as well as preliminary efficacy, and identify the optimal dose of ADRX-0706 in patients with urothelial cancer, triple negative breast cancer, and cervical cancer.

Interventions

DRUGADRX-0706

Antibody drug conjugate targeting Nectin-4

Sponsors

Adcentrx Therapeutics
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

* Phase 1a Dose Escalation: Subjects with histologically confirmed select advanced solid tumors, including urothelial carcinoma (UC), head and neck squamous cell carcinoma (HNSCC), breast cancer, cervical cancer, ovarian cancer, non-small cell lung cancer (NSCLC), and pancreatic cancer. Subjects must have received at least one prior systemic regimen and have no other therapy available known to provide meaningful clinical benefit in the opinion of the investigator. * Phase 1b Dose Expansion: Subjects with urothelial cancer, triple negative breast cancer or cervical cancer with disease progression after at least one prior systemic regimen and no standard treatment options available and considered appropriate in the opinion of the investigator, unless subject refuses standard therapy. * Measurable disease according to RECIST version 1.1 * Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 * Adequate hematologic, liver, and renal function

Exclusion criteria

* Active and uncontrolled central nervous system metastases * Significant cardiovascular disease * History of another malignancy other than the one for which the subject is being treated on this study within 3 years * Receipt of any anticancer or investigational therapy within 5 elimination half-lives or 14 days (whichever is less) * Any P-gp inducers/inhibitors or strong CYP3A inhibitors received within 14 days prior to the first dose of study drug * Receiving systemic antimicrobial treatment for active infection; routine antimicrobial prophylaxis is permitted

Design outcomes

Primary

MeasureTime frame
Incidence of adverse eventsUntil study completion (estimated 3 years)

Secondary

MeasureTime frameDescription
Measurement of disease control rate (DCR)Until study completion (estimated 3 years)Percentage of subjects achieving CR, PR or stable disease (SD)
Measurement of maximum plasma concentration (Cmax) of ADRX-0706Until study completion (estimated 3 years)Measured from pharmacokinetic (PK) blood samples
Measurement of trough concentration (Ctrough) of ADRX-0706Until study completion (estimated 3 years)Measured from PK blood samples
Measurement of area under the serum concentration-time curve (AUC) of ADRX-0706Until study completion (estimated 3 years)Measured from PK blood samples
Measurement of terminal half-life (t1/2) of ADRX-0706Until study completion (estimated 3 years)Measured from PK blood samples
Measurement of duration of response (DOR)Until study completion (estimated 3 years)Time from first response until first evidence of disease progression (PD) or death from any cause
Measurement of volume of distribution at steady state (Vss) of ADRX-0706Until study completion (estimated 3 years)Measured from PK blood samples
Incidence of anti-drug antibodies (ADA)Until study completion (estimated 3 years)Measured from ADA blood samples
Measurement of objective response rate (ORR) per RECIST 1.1Until study completion (estimated 3 years)Percentage of subjects achieving complete response (CR) or partial response (PR)
Measurement of progression free survival (PFS)Until study completion (estimated 3 years)Time from the start of study drug until first evidence of PD or death from any cause
Measurement of overall survival (OS)Until study completion (estimated 3 years)Time from the start of study drug until death from any cause
Measurement of systemic clearance (CL) of ADRX-0706Until study completion (estimated 3 years)Measured from PK blood samples

Countries

China, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 6, 2026