ClinicalTrials.gg
RecruitingNCT06797999ADCElerate1Updated Sep 11, 2026

First-in-Human Study of ADCE-D01 in Soft Tissue Sarcoma

A Phase 1/2 interventional study of Antibody-drug conjugate (ADC) in Metastatic Soft Tissue Sarcoma and Unresectable Soft Tissue Sarcoma, sponsored by Adcendo ApS. Recruiting at 9 sites in 5 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-11.

Sponsored by Adcendo ApS · Phase 1/2, Interventional, and Treatment

From the registry’s dates

  • Started Jun 2025; still recruiting 1 year 5 months later.
Phase
Phase 1/2
Study type
Interventional
Enrollment
270
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

The goal of this clinical trial is to learn about the safety, tolerability and efficacy of ADCE-D01.

Read the detailed description

Safety and Tolerability evaluated by incidence of DLTs. Efficacy evaluated by antitumor activity; ORR, DOR, PFS, CBR and TTR per RECIST v i.1.

02

Conditions studied

  • Metastatic Soft Tissue Sarcoma
  • Unresectable Soft Tissue Sarcoma

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Keywords

  • Phase 1/Phase 2
  • Sequential
  • Treatment
03

In context

Sarcoma

1,607 studies on the registry are indexed under Sarcoma; 366 are open to participants now.

This study's planned enrollment of 270 is above the median of 40 across 1,255 interventional studies indexed under Sarcoma.

Browse Sarcoma studies →

Lead sponsor

Adcendo ApS is the lead sponsor of 3 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. ≥ 18 years of age
  2. confirmed STS with and/or unresectable disease (not amenable to treatment with curative intent).
  3. Prior treatment with at least one but no more than two lines of cytotoxic systemic therapy for metastatic/unresectable disease.
  4. as per v 1.1.
  5. (ECOG) performance status of 0 or 1.
  6. of at least 3 months.
  7. A male patient must agree to use barrier 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.
  8. A female patient is eligible if not pregnant, not breast feeding, and not a woman of (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

Exclusion Criteria:

  1. Patients who have had systemic anticancer therapy, including any agent within 4 weeks or 5 half-lives (whichever is shorter) prior to study treatment administration.
  2. Primary brain or known, untreated central nervous system (CNS) or , or symptoms suggesting CNS involvement.
  3. cardiovascular disease
  4. Patients with acute infection with (HIV) 1 or HIV 2.
  5. Current active liver disease due to
  6. History of idiopathic pulmonary fibrosis, organizing pneumonia, drug-induced pneumonitis, idiopathic pneumonitis, or evidence of active pneumonitis on a chest computed tomography (CT) scan at screening.
Terms in these criteria, in plain language(14)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Leptomeningeal disease

Cancer that has spread to the leptomeninges, the thin layers covering the brain and spinal cord, and the fluid between them. It is not the same as brain metastases.

Criteria often treat it separately, and many studies leave it out even where treated brain metastases are allowed.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
270 participants (estimated)

Study arms

  • Other
    ADCE-D01

    ADCE-D01

    Biological: Antibody-drug conjugate (ADC)

Interventions

  • ADCE-D01 is an antibody-drug conjugate (ADC) composed of an anti-urokinase plasminogen activator receptor-associated protein (uPARAP) antibody, AB-004, conjugated to a topoisomerase I inhibitor, P1021, via a protease cleavage tetra-peptide linker.

    Also known as: ADCE-D01

06

What researchers measure

Primary outcomes

  1. Determine the MTD/maximum administered dose and RP2DS of ADCE-D01.

    Measuring incidence of dose-limiting toxicities (DLTs)

    Time frame: From enrollment to the end of Phase 1b (Approximately 18 months after enrollment)

  2. Assess the safety and tolerability of ADCE-D01

    Nature, 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.

    Time frame: Throughout the trial duration, completion expected approximately 18 months from completed enrollment

Secondary outcomes

  1. Maximum concentration (Cmax)

    Time to maximum plasma concentration will be assessed to inform ADCE-D01 PK profile

    Time frame: Throughout the trial duration, completion expected approximately 18 months from completed enrollment

  2. ADCE-D01 time to Cmax (Tmax)

    Time to Cmax (Tmax) will be assessed to characterize the ADCE-D01 PK profile

    Time frame: Throughout the trial duration, completion expected approximately 18 months from completed enrollment

  3. ADCE-D01 area under the concentration-time curve (AUC)

    ADCE-D01 area under the concentration-time curve (AUC) will be assessed to characterize PK profile

    Time frame: Throughout the trial duration, completion expected approximately 18 months from completed enrollment

  4. Evaluate ADCE-D01 objective response rate (ORR)

    Objective response rate (ORR) per RECIST v1.1 by Investigator assessment

    Time frame: Throughout the trial duration, completion expected approximately 18 months from completed enrollment

  5. Evaluate ADCE-D01 duration of response (DOR)

    Duration of response DOR, measured per RECIST v1.1 by Investigator assessment will be used to further characterize the durability of tumor response of ADCE-D01

    Time frame: Throughout the trial duration, completion expected approximately 18 months from completed enrollment

  6. ADCE-D01 progression-free survival (PFS)

    Progression-free survival (PFS) assessed by Investigator per RECIST v1.1 to evaluate preliminary antitumor activity.

    Time frame: Throughout the trial duration, completion expected approximately 18 months from completed enrollmen

  7. ADCE-D01 clinical benefit rate (CBR)

    clinical benefit rate (CBR) assessed by Investigator per RECIST version 1.1 to evaluate preliminary antitumor activity of ADCE-D01

    Time frame: Throughout the trial duration, completion expected approximately 18 months from completed enrollment

  8. ADCE-D01 time to response (TTR)

    time to response (TTR) assessed by Investigator per RECIST version 1.1 to evaluate preliminary antitumor activity of ADCE-D01

    Time frame: Throughout the trial duration, completion expected approximately 18 months from completed enrollment

07

Study locations

7 of 9 sites recruiting
  • University of Colorado Denver
    Aurora, Colorado 80208, United States
    Recruiting
    • Breelyn Wilky, Dr. · Contact
  • University of Miami - Sylvester Comprehensive Cancer Center
    Miami, Florida 33136, United States
    Recruiting
    • Jonathan Trent, Dr. · Contact
  • Memorial Sloan Kettering Cancer Center
    New York, New York 10065, United States
    Recruiting
    • Robert Maki, Dr. · Contact
  • University Of Texas MD Anderson Cancer Center
    Houston, Texas 77030, United States
    Recruiting
    • Shreyaskumar Patel, Dr. · Contact
  • Universitair Ziekenhuis Leuven (UZ Leuven) - Campus Gasthuisberg
    Leuven, 3000, Belgium
    Recruiting
    • Patrick Schöffski, Dr. · Contact
  • Institut Gustave Roussy
    Paris, Ville Juif Cedex 94805, France
    Not yet recruiting
    • Antoine Italiano, Prof. · Contact
  • Centre Léon Bérard
    Lyon, 69373, France
    Recruiting
    • Jean-Yves Blay, Prof. · Contact
  • Universitätsklinikum Essen West German Tumor Center
    Essen, D-45147, Germany
    Recruiting
    • Sebastian Bauer, Dr. · Contact
  • Royal Marsden
    London, United Kingdom
    Not yet recruiting
    • Robin Jones, Dr. · Contact
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Jun 2025 (actual). Primary completion is estimated for Feb 2029, 44 months after the start.

Of 44 industry-sponsored phase 1/2 interventional studies under Sarcoma, half reached primary completion within 59 months of starting (the median), counting those still running; a quarter within 43 and three quarters within 89. This study's planned 44 months is below that.

Counting every sponsor, half of 101 studies reached it within 62 months; a quarter within 45 and three quarters within 106.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 16, 2025
First posted
Jan 29, 2025
StartActual
Jun 5, 2025
Primary completionEst.
Feb 27, 2029
CompletionEst.
Feb 27, 2029
Last update
Sep 11, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 11, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06797999
Lead sponsor
Adcendo ApS
Responsible party
Sponsor
First posted
Jan 29, 2025
Start date
Jun 5, 2025
Primary completion
Feb 27, 2029 (estimated)
Completion
Feb 27, 2029 (estimated)
Last update
Sep 11, 2026

Study contacts

René Smrčka
Contact
rene.smrcka@adcendo.com
+45 3144 0653
Margaret McNaull
Contact
margaret.mcnaull@adcendo.com
+44 7818 457619.

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Antibody-drug conjugates (ADCs)

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