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CompletedNCT03478488KN035-BTCUpdated Sep 23, 2026

Programmed Death Ligand (PD-L1) Combined With Chemotherapy for Patients With BTC

A Phase 3 interventional study of KN035 plus Gemcitabine & oxaliplatin and Gemcitabine & oxaliplatin in Biliary Tract Neoplasms, sponsored by 3D Medicines (Sichuan) Co., Ltd.. Completed at 1 site in China. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-23.

Sponsored by 3D Medicines (Sichuan) Co., Ltd. · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
472
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 49 studies testing gemcitabine in Biliary Tract Neoplasms — 9 open to participants now, 13 under way, 2 of them phase 3. Gemcitabine · Biliary Tract Neoplasms.

Enrollment
2nd of 49
472 · median 44
Started
2018
with 1 other
Phase 3
3 of 49
none open now
Registered
33rd of 49
by date

Among the 49 studies testing gemcitabine in Biliary Tract Neoplasms, this one is the 2nd largest by enrollment, is one of 2 that started in 2018, is one of 3 in phase 3, and was the 33rd registered.

Biliary Tract Neoplasms

519 studies on the registry are indexed under Biliary Tract Neoplasms; 199 are open to participants now.

Browse Biliary Tract Neoplasms studies →

Open to participants now

9 of the 49 studies testing gemcitabine in Biliary Tract Neoplasms are open now, in 5 countries. Recruiting first, the newest first:

4 more — sign in →

By country, each count listing its studies:

All 9 open studies →

About gemcitabine

Gemcitabine: first FDA approval 1996 (GEMZAR). What it is approved for, and how studies give it, is on its page →

Who these studies take

Of the 140 Biliary Tract Neoplasms studies recruiting now, 80 (57%) set no upper age limit and 37 (26%) stop at 75 or younger; 6 take children under 18; 4 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

The full table on the hub →

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 49 studies testing gemcitabine in Biliary Tract Neoplasms, or all of them as a file.
02

Study summary

This is a randomized, open-label, parallel-group multi-center study of Phase 3 study to assess the efficacy and safety of KN035 compared to standard of care (SOC) Gemcitabine-based chemotherapies in the treatment of participants with previously untreated locally advanced or metastatic biliary tract cancer.

The primary hypothesis of this study is that participants will have a longer overall Survival (OS) when treated with combined therapy than SOC.

03

Conditions studied

  • Biliary Tract Neoplasms
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

  • Eighteen years and older;
  • Histological or cytological diagnosis of unresectable or gallbladder cancer or cholangiocarcinoma;
  • Previously untreated with systemic therapy; Subjects who developed recurrent disease >6 months after a sort of adjuvant, chemotherapy could also be eligible.
  • Liver function A or B;
  • Performance status of 0 or 1 on the (ECOG) Performance Status;
  • of at least 12 weeks;
  • At least one per 1.1;
  • Adequate organ function

Exclusion criteria

Exclusion Criteria:

  • Specific anti-tumor treatment prior to 4 weeks;
  • more than 50% liver ;
  • Patient with other serious diseases or clinical conditions, including but not limited to uncontrolled active infection etc;
  • History of severe reaction to any monoclonal antibody or chemistry;
  • Women who are pregnant or in the period of lactation;
  • Patients with an active, known or suspected disease. Patients are permitted to enrol if they have vitiligo, type I diabetes mellitus, residual hypothyroidism due to autoimmune condition only requiring hormone replacement;
Terms in these criteria, in plain language(9)

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.

Metastases

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

Adjuvant and neoadjuvant

Neoadjuvant treatment is given before the main treatment (usually surgery), often to shrink a tumour. Adjuvant treatment is given after it, to lower the chance of the cancer coming back.

Child-Pugh class

A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.

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.

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.

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.

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.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
472 participants (actual)

Study arms

  • Experimental
    KN035

    KN035 plus Gemcitabine \& oxaliplatin KN035 2.5 mg/Kg, administered as subcutaneous injection, weekly of each 21-day cycle. Gemcitabine 1000 mg/m\^2, IV infusion on Day 1 and Day 8, and oxaliplatin 85 mg/m\^2, IV infusion on Day 1 of each 21-day cycle for no more than 6 cycles.

    Drug: KN035 plus Gemcitabine & oxaliplatin

  • Active comparator
    Gemcitabine & oxaliplatin

    Gemcitabine 1000 mg/m\^2, IV infusion on Day 1 and Day 8, and oxaliplatin 85 mg/m\^2, IV infusion on Day 1 of each 21-day cycle for no more than 6 cycles.

    Drug: Gemcitabine & oxaliplatin

Interventions

  • DrugKN035 plus Gemcitabine & oxaliplatin

    Drug pages: Envafolimab · Gemcitabine · Oxaliplatin

    KN035 a programmed death ligand immune check inhibitor Per Investigator decision

    Also known as: Experimental

  • DrugGemcitabine & oxaliplatin

    Drug pages: Gemcitabine · Oxaliplatin

    The standard of care for the patients with unresectable/metastatic biliary tract cancer

    Also known as: Active Comparator

06

What researchers measure

Primary outcomes

  1. Overall Survival (OS)

    was defined as the time from randomization to death due to any cause.

    Time frame: Observed by 12 weeks after progressive disease or end of treatment

Secondary outcomes

  1. Progression Free Survival (PFS)

    was defined as the time from randomization to documented disease progression per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1) or death due to any cause, whichever occurred first and was based on blinded independent Review Committee (BIRC) review.

    Time frame: Observed by 6 weeks

  2. Objective response rate (ORR)

    was defined as the percentage of participants in the analysis population who experienced a Complete Response or a Partial Response and was assessed using RECIST 1.1 based on BIRC evaluation.

    Time frame: Observed by 6 weeks

  3. Disease control rate (DCR)

    was defined as the percentage of participants in the analysis population who experienced a Complete Response or a Partial Response or stable disease and was assessed using RECIST 1.1 based on BIRC evaluation

    Time frame: Observed by 6 weeks

  4. Duration of Response (DOR)

    was defined as the time from the first met for complete response/partial response (whichever was first recorded) until the first date that recurrent or progressive disease was objectively documented (taking as reference for progressive disease the smallest measurements recorded on study)

    Time frame: Observed by 6 weeks

  5. Time to progression (TTP)

    was defined as the time from randomization to the first date that progressive disease was objectively documented

    Time frame: Observed by 6 weeks

07

Study locations

1 site
  • The Chinese people's liberation army (PLA) 81hospital
    Nanjing, Jiangsu 210002, China
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Apr 2018 to primary completion in Sep 2024, 76 months.

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

Registered
Mar 21, 2018
First posted
Mar 27, 2018
StartActual
Apr 16, 2018
Primary completionActual
Sep 10, 2024
CompletionActual
Sep 10, 2024
Last update
Sep 23, 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 23, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03478488
Lead sponsor
3D Medicines (Sichuan) Co., Ltd.
Responsible party
Sponsor
First posted
Mar 27, 2018
Start date
Apr 16, 2018
Primary completion
Sep 10, 2024
Completion
Sep 10, 2024
Last update
Sep 23, 2026

Study contacts

Shukui Qin
principal investigator · The Chinese people's liberation army (PLA) 81 hospital

Oversight

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

Not currently enrolling

This study is completed, as verified in Sep 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 drugs tested here: Envafolimab · Gemcitabine · Oxaliplatin

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