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Advanced Relapsed or Refractory Germ Cell TumoursPhase 1NCT07306559

A Study to Test How Well Different Doses of BI 3820768 Are Tolerated by People With Advanced Cancer (Solid Tumours)

A Phase 1 study testing BI 3820768 in people with Advanced Relapsed or Refractory Germ Cell Tumours and Advanced Relapsed or Refractory Endometrial Cancer, run by Boehringer Ingelheim at 13 sites in 6 countries.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

This study is open to adults with advanced germ cell tumours, endometrial cancer, or ovarian cancer whose previous treatments were not successful. People can join the study if they have no remaining treatment options or if standard therapy is not suitable. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
BI 3820768
Could I receive a placebo?
No, everyone receives an active treatment
How many people
187 participants
Where
13 sitesin 6 countries
Study dates
27 Feb 2026to 28 Jan 2030
Phase
Phase 1
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patient must be ≥18 years of age and at least at the legal age of consent in countries where it is older than 18 years at the time of signature on the informed consent forms (ICFs).
  • For patients with endometrial cancer (EC) and ovarian cancer (OVC), signed and dated written ICF1 for target testing.
  • Signed and dated ICF2 for all patients describing the study in accordance with International Council on Harmonisation Good Clinical Practice (ICH-GCP) and local legislation prior to any trial-specific procedures, sampling, or analyses.
  • Prior to Screening Visit 02, confirmed target-positivity for EC and OVC based on central laboratory testing of tumour tissue sample.
  • Patients with a histologically or cytologically confirmed diagnosis of germ cell tumour (GCT), EC, or OVC.
  • Patients with advanced, relapsed/refractory (r/r) GCT, EC, or OVC.
Show all 9Show fewer
  • Patients with disease progression despite conventional treatment, intolerant to or not a candidate for conventional treatment, who have exhausted all established treatment options.
  • Patients with an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
  • Further inclusion criteria apply.

Who cannot join

  • Patient with a history of a major surgery within 28 days prior to the first dose of BI 3820768 (major according to the Investigator's and/or Sponsor's assessment).
  • Previous or concomitant malignancies other than the one treated in this trial within the past 3 years except:
  • Effectively treated non-melanoma skin cancers
  • Effectively treated carcinoma in situ of the cervix
  • Effectively treated ductal carcinoma in situ
  • Other effectively treated malignancy that is considered cured by local treatment
Show all 14Show fewer
  • Patient with known leptomeningeal disease or spinal cord compression due to disease.
  • Presence of any infection requiring systemic antimicrobial treatment within 7 days prior to the first dose of trial medication. Patients who have any clinical signs of infection (e.g. fever or leukocytosis) within 48 h prior to the first dose of trial medication are not eligible.
  • Patients with Hepatitis-C-Virus (HCV) infection, defined as:
  • Currently receiving curative antiviral treatment for HCV infection, and/or
  • HCV viral load is above the limit of quantification (HCV RNA positive).
  • Patients with active hepatitis B virus (HBV) infection (chronic or acute); defined as having a positive hepatitis B surface antigen (HBsAg), and HBsAg test at screening.
  • Patient with past HBV infection or resolved HBV infection (defined as the presence of hepatitis B core antibody (HBcAb) and absence of HbsAg) are eligible. HBV DNA must be obtained in these patients prior study start.
  • Further exclusion criteria apply.

Trial locations and contacts

13 sites in 6 countries. Contact the study team or a site near you to ask about taking part.

13 sites in 6 countries

United States3 sites, 3 recruiting
  • The University of Texas MD Anderson Cancer Center

    Houston, Texas, 77030

    Boehringer Ingelheim, 833-602-2368, unitedstates@bitrialsupport.com

    Recruiting
  • Indiana University

    Indianapolis, Indiana, 46202

    Boehringer Ingelheim, 833-602-2368, unitedstates@bitrialsupport.com

    Not yet recruiting
  • Valkyrie Clinical Trials

    Los Angeles, California, 90067

    Boehringer Ingelheim, 833-602-2368, unitedstates@bitrialsupport.com

    Recruiting

Other trials in United States

Belgium2 sites, 1 recruiting
  • Cliniques Universitaires Saint-Luc

    Brussels, 1200

    Boehringer Ingelheim, 080049616, belgique@bitrialsupport.com

    Recruiting
  • UZ Leuven

    Leuven, 3000

    Suspended

Other trials in Belgium

France2 sites, 2 recruiting
  • INS Paoli-Calmettes

    Marseille, 13009

    Boehringer Ingelheim, 0805102354, france@bitrialsupport.com

    Recruiting
  • Institut Gustave Roussy

    Villejuif, 94800

    Boehringer Ingelheim, 0805102354, france@bitrialsupport.com

    Recruiting

Other trials in France

Germany2 sites, 2 recruiting
  • Klinikum der Universität München AÖR

    München, 81377

    Boehringer Ingelheim, 08007234742, deutschland@bitrialsupport.com

    Recruiting
  • Universitätsklinikum Würzburg AÖR

    Würzburg, 97078

    Boehringer Ingelheim, 08007234742, deutschland@bitrialsupport.com

    Recruiting

Other trials in Germany

Japan2 sites, 2 recruiting
  • National Cancer Center Hospital East

    Chiba, Kashiwa, 277-8577

    Boehringer Ingelheim, 05050508862, nippon@bitrialsupport.com

    Recruiting
  • Japanese Foundation for Cancer Research

    Tokyo, Koto-ku, 135-8550

    Boehringer Ingelheim, 05050508862, nippon@bitrialsupport.com

    Recruiting

Other trials in Japan

Spain2 sites, 2 recruiting
  • Hospital Universitari Vall d'Hebron

    Barcelona, 08035

    Boehringer Ingelheim, 900876092, espana@bitrialsupport.com

    Recruiting
  • Clínica Universidad de Navarra - Madrid

    Madrid, 28027

    Boehringer Ingelheim, 900876092, espana@bitrialsupport.com

    Recruiting

Other trials in Spain

About this study

Official title: A Phase I Study to Determine the Safety and Tolerability of BI 3820768 in Patients With Advanced Relapsed or Refractory Germ Cell Tumours, Endometrial Cancer, or Ovarian Cancer

This study is open to adults with advanced germ cell tumours, endometrial cancer, or ovarian cancer whose previous treatments were not successful. People can join the study if they have no remaining treatment options or if standard therapy is not suitable. The purpose of this study is to test increasing doses of BI 3820768 to find a dose that people with these types of cancer can tolerate and that may make tumours shrink. BI 3820768 is a type of treatment that may help the immune system fight cancer. This is the first time BI 3820768 is being tested in humans.

The study has 2 parts based on the way BI 3820768 is given. Depending on when participants join the study, they will receive BI 3820768 through one of two ways to inject the study medicine. All participants receive the study medicine. The medicine is given as an injection once a week for 2 cycles of 3 weeks each, followed by doses every 3 weeks.

Participants are in the study for up to 3 years if they are benefiting from the treatment. During this time, they visit the study site regularly, and some visits will require overnight stays. Doctors will regularly check the size of the tumour and whether it has spread. Researchers want to find the highest dose of BI 3820768 that participants can tolerate by looking at the number of participants with certain severe health problems. The doctors also regularly check participants' health, take blood samples, and note any unwanted effects.

Being tested
BI 3820768
Medical subject headings
Endometrial Neoplasms, Ovarian Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • BI 3820768Drug

    BI 3820768

Study groups in NCT07306559
Study groupRoleWhat they receive
Part 1: BI 3820768ExperimentalNot described
Receives: Drug: BI 3820768
Part 2: BI 3820768ExperimentalNot described
Receives: Drug: BI 3820768

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Occurrence of treatment-emergent AEs

    AEs=Adverse Events

    Measured: up to 3 years.

  2. Occurrence of DLT(s)

    DLT(s)=Dose Limiting Toxicities

    Measured: up to 3 years.

Secondary outcomes (5)
  1. Objective response (OR)

    Defined as the best overall response (BOR) of confirmed complete response (CR) or confirmed partial response (PR), where Best overall response (BOR) is determined according to Response Evaluation Criteria In Solid Tumors (RECIST) version 1.1.

    Measured: up to 3 years.

  2. Maximum measured plasma concentration of BI 3820768 after the first administration

    Measured: up to 24 hours.

  3. Maximum measured plasma concentration of BI 3820768 after multiple administrations

    Measured: up to 3 years.

  4. Area under the concentration-time curve of BI 3820768 after the first administration

    Measured: up to 24 hours.

  5. Area under the concentration-time curve of BI 3820768 after multiple administrations

    Measured: up to 3 years.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Dec 2025
  2. Study start27 Feb 2026
  3. Primary completion7 Sep 2029 (estimated)
  4. Study completion28 Jan 2030 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Masking
None (open label)
Enrolment
187 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07306559
Sponsor's protocol ID
2001-0001
Other IDs
2025-522913-45-00, U1111-1324-5961, 2025
Status last verified
Aug 2026
First submitted
15 Dec 2025
Last updated
21 Aug 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No: Clinical studies sponsored by Boehringer Ingelheim, phases I to IV, interventional and non-interventional, are in scope for sharing of the raw clinical study data and clinical study documents. Exceptions might apply, e.g. studies in products where Boehringer Ingelheim is not the license holder; studies regarding pharmaceutical formulations and associated analytical methods, and studies pertinent to pharmacokinetics using human biomaterials; studies conducted in a single center or targeting rare diseases (in case of low number of patients and therefore limitations with anonymization). For more details refer to: https://www.clinicalstudies.boehringer-ingelheim.com/msw/datasharing

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing BI 3820768 in people with Advanced Relapsed or Refractory Germ Cell Tumours and Advanced Relapsed or Refractory Endometrial Cancer, run by Boehringer Ingelheim at 13 sites in 6 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 14 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 21 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 13 sites in United States, Belgium, France, Germany, Japan and 1 more country. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Boehringer Ingelheim (1-800-243-0127, clintriage.rdg@boehringer-ingelheim.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Occurrence of treatment-emergent AEs (time frame: up to 3 years.). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Aug 2026.

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