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First-in-Human Study of ADCE-B05 in Patients With Advanced Solid Tumors

A First-in-Human, Phase 1a/1b, Open-Label Multicenter Study to Assess the Safety, Tolerability, Pharmacokinetics, Immunogenicity, and Antitumor Activity of the Antibody Drug Conjugate ADCE-B05 in Patients With Advanced Solid Tumors

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07362888
Enrollment
180
Registered
2026-01-23
Start date
2026-03-17
Completion date
2029-03-14
Last updated
2026-07-24

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

Conditions

Solid Tumors (Phase 1)

Brief summary

The main purpose of the study is to determine the Maximum Tolerated Dose (MTD), the Recommended Expansion Dose and the safety and tolerability of ADCE-B05 when given as a single therapy over a range of different dose levels.

Detailed description

Safety and tolerability will be evaluated by incidence of DLTs. Efficacy will be evaluated by antitumor activity: ORR, DOR, PFR, and TTR per RECIST v 1.1

Interventions

DRUGADCE-B05

Biological: Antibody-drug conjugate (ADC)

Sponsors

Adcendo ApS
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Histologically or cytologically confirmed diagnosis of solid tumor * Advanced disease (i.e., unresectable locally advanced or metastatic) and refractory to, intolerant of, or ineligible for approved therapies * Radiologically or clinically determined progressive disease during or after most recent line of therapy * Measurable disease per RECIST 1.1 * ECOG performance status of 0 or 1 * Adequate hematological and biochemical parameters * A male patient must agree to use barrier contraception during the treatment period and for at least 4 months after the last infusion of study treatment, and refrain from donating sperm during this period. Male patients with a pregnant partner must practice sexual abstinence or use a barrier method of contraception (e.g., condom) to prevent exposure of the fetus or neonate * A female patient who is not pregnant, not breast feeding, and either not a woman of childbearing potential (WOCBP) or agrees to follow the contraceptive guidance during the treatment period and for at least 7 months after last infusion of study treatment

Exclusion criteria

* Treatment with systemic anticancer therapy, including any investigational agent within 3 weeks or 5 half-lives (whichever is shorter) prior to study treatment administration * Prior treatment with an ADC containing a topoisomerase I inhibitor payload * Primary brain malignancy or known, untreated central nervous system (CNS) or leptomeningeal metastases, or symptoms suggesting CNS involvement for which treatment is required * Other malignancy * Major surgical procedure or significant traumatic injury within 28 days prior to study drug administration * Ongoing systemic infection requiring treatment with antibiotics, antivirals, or antimycotics, other than prophylactic treatment * Persistent toxicities from previous systemic anti-neoplastic treatments of Grade \>1 * Clinically significant cardiovascular disease * Acute infection with human immunodeficiency virus (HIV)-1 or HIV-2 * Current active liver disease due to hepatitis B or hepatitis C * History of idiopathic pulmonary fibrosis, organizing pneumonia, drug-induced pneumonitis, idiopathic pneumonitis, or evidence of active pneumonitis or pulmonary lymphangitic carcinomatosis

Design outcomes

Primary

MeasureTime frameDescription
Determine the MTD/maximum administered dose of ADCE-B05From enrollment to the end of Phase 1a (Approximately 11 months after enrollment)Incidence of dose-limiting toxicities (DLTs)
Assess the safety and tolerability of ADCE-B05Throughout the trial duration, completion expected approximately 18 months from completed enrollmentNature, incidence, severity, and causality of treatment-emergent adverse events (TEAEs) and changes from baseline in laboratory parameters using the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 5.0 (v5.0). Tolerability as assessed by TEAEs leading to dose interruption, reduction and/or discontinuation

Secondary

MeasureTime frameDescription
Maximum concentration (Cmax)Throughout the trial duration, completion expected approximately 18 months from completed enrollmentThe maximum concentration (Cmax) will be assessed to characterize the Pharmacokinetic profile of ADCE-B05
Time to maximum concentration (Tmax)Throughout the trial duration, completion expected approximately 18 months from completed enrollmentThe time to maximum concentration (Tmax) will be assessed to characterize the Pharmacokinetic profile of ADCE-B05
Terminal half-life (T[1/2])Throughout the trial duration, completion expected approximately 18 months from completed enrollmentThe terminal half-life (T\[1/2\]) will be assessed to characterize the Pharmacokinetic profile of ADCE-B05
Area under the concentration-time curve (AUC)Throughout the trial duration, completion expected approximately 18 months from completed enrollmentThe area under the concentration-time curve (AUC) will be assessed to characterize PK profile of ADCE-B05
Total antibody (TAb)Throughout the trial duration, completion expected approximately 18 months from completed enrollmentThe total antibody will be assessed to characterize the Pharmacokinetic profile of ADCE-B05
Free (de-conjugated) payloadThroughout the trial duration, completion expected approximately 18 months from completed enrollmentThe free (de-conjugated) payload will be assessed to characterize PK profile of ADCE-B05
Objective response rate (ORR)Throughout the trial duration, completion expected approximately 18 months from completed enrollmentObjective response rate (ORR) will be assessed by Investigator per RECIST v1.1 to evaluate preliminary antitumor activity
Duration of response (DOR)Throughout the trial duration, completion expected approximately 18 months from completed enrollmentDuration of response DOR will be assessed by Investigator per RECIST v1.1 to evaluate preliminary antitumor activity
Progression-free survival (PFS)Throughout the trial duration, completion expected approximately 18 months from completed enrollmentProgression-free survival (PFS) will be assessed by Investigator per RECIST v1.1 to evaluate preliminary antitumor activity
Disease Control Rate (DCR)Throughout the trial duration, completion expected approximately 18 months from completed enrollmentDCR will be assessed by investigator per RECIST v1.1 to evaluate preliminary antitumor activity
Time to Response (TTR)Throughout the trial duration, completion expected approximately 18 months from completed enrollmentTTR will be assessed by Investigator per RECIST v1.1 to evaluate preliminary antitumor activity

Countries

Australia, United States

Contacts

CONTACTCharlotte Lybek Lind
charlotte.lind@adcendo.com+45 26461897
CONTACTMargaret McNaull
margaret.mcnaull@adcendo.com+44 7818457619

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 25, 2026