ClinicalTrials.gg
Not yet recruitingNCT07636772Updated Jun 9, 2026

A Phase II Study of AK146D1 Mono or Combined With AK112 in Advanced Urothelial Carcinoma

A Phase 2 interventional study of AK146D1 for injection and AK112 Injection in Urothelial Carcinoma (UC), sponsored by Akeso. Not yet recruiting at 1 site in China. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-06-09.

Sponsored by Akeso · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
132
Allocation
Non-randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This is a Phase II clinical study aimed at evaluating the safety, tolerability, antitumor efficacy, PK and immunogenicity of AK146D1 monotherapy or combined with AK112 in advanced Urothelial carcinoma.

02

Conditions studied

  • Urothelial Carcinoma (UC)
03

In context

Carcinoma, Transitional Cell

633 studies on the registry are indexed under Carcinoma, Transitional Cell; 181 are open to participants now.

This study's planned enrollment of 132 is above the median of 50 across 500 interventional studies indexed under Carcinoma, Transitional Cell.

Browse Carcinoma, Transitional Cell studies →

Lead sponsor

Akeso is the lead sponsor of 156 studies on the registry; 66 are open to participants now.

Of its 8 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 75 Years
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

  • Be able to understand and voluntarily sign the written form.
  • Age 18-75.
  • PS 0 or 1.
  • Expected lifespan ≥3 months.
  • or cytologically documented Urothelial carcinoma.
  • At least one according to v1.1.
  • Sufficient organ function.

Exclusion criteria

Exclusion Criteria:

  • Having other active within 3 years.
  • Currently participating in another interventional clinical study.
  • Presence of active to the central nervous system.
  • Prior chemotherapy agent targeting topoisomerase I .
  • Receipt of systemic anti-tumor therapy within 4 weeks prior to the first dose.
  • Patients with cardiovascular or cerebrovascular diseases or risks.
  • Patients with active diseases requiring systemic treatment within 2 years.
  • Receipt of systemic anti-infective therapy within 2 weeks prior to the first dose.
  • Previous history of severe reactions.
  • Patients with a history of mental illness and incapacitated or limited capacity.
  • Any disease or condition that, in the opinion of the investigator, would compromise patient safety or interfere with study assessments.
Terms in these criteria, in plain language(10)

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.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

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.

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.

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.

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.

Metastases

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

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.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
132 participants (estimated)

Study arms

  • Experimental
    Arm A

    AK146D1 combined with AK112

    Drug: AK146D1 for injection · Drug: AK112 Injection

  • Experimental
    Arm B

    AK146D1 mono

    Drug: AK146D1 for injection

Interventions

06

What researchers measure

Primary outcomes

  1. Number of participants with dose limiting toxicities(DLTs)

    DLTs are defined as toxicities that meet predefined severity criteria, and assessed as having a suspected relationship to study drug

    Time frame: During the first 3 weeks of treatment

  2. Objective Response Rate(ORR)

    ORR is the proportion of participants with complete response(CR) or partial response(PR)

    Time frame: Up to 2 years

  3. Number of participants with adverse events (AEs)

    AEs refer to any untoward medical occurrence or deterioration of existing medical events after the participants sign the ICFs, whether or not considered related to the study treatment.

    Time frame: From the time of informed consent signed through 90 days after the last dose

Secondary outcomes

  1. Progression Free Survival(PFS)

    PFS is defined as the time from the start of treatment until the first documentation of disease progression or death due to any cause,whichever occurs first.

    Time frame: Up to 2 years

  2. Disease Control Rate(DCR)

    DCR is defined as the proportion of participants with CR, PR, or SD

    Time frame: Up to 2 years

  3. Duration of response(DoR)

    DoR is defined as the duration from the first documentation of objective response to the first documented disease progression or death due to any cause, whichever occurs first.

    Time frame: Up to 2 years

  4. Time to response(TTR)

    TTR is defined as the time to objective response

    Time frame: Up to 2 years

  5. Overall survival(OS)

    OS is defined as the time from the first dose to death from any cause.

    Time frame: Up to 2 years

07

Study locations

1 site
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

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

Start is estimated for Jun 2026; primary completion for Aug 2028, 26 months later.

Of 119 phase 2 interventional studies under Carcinoma, Transitional Cell, half reached primary completion within 57 months of starting (the median), counting those still running; a quarter within 35 and three quarters within 102. This study's planned 26 months is below that.

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

Registered
Jun 4, 2026
First posted
Jun 9, 2026
StartEst.
Jun 22, 2026
Primary completionEst.
Aug 24, 2028
CompletionEst.
Aug 24, 2028
Last update
Jun 9, 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 Jun 9, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07636772
Lead sponsor
Akeso
Responsible party
Sponsor
First posted
Jun 9, 2026
Start date
Jun 22, 2026 (estimated)
Primary completion
Aug 24, 2028 (estimated)
Completion
Aug 24, 2028 (estimated)
Last update
Jun 9, 2026

Study contacts

Ting Liu
Contact
clinicaltrials@akesobio.com
+86 (0760) 8987 3999

Oversight

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

Not currently enrolling

This study is not yet recruiting, as verified in May 2026. You cannot join it, but the record below documents what was studied.

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Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

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Studies of the drug tested here: AK146D1

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