Clinical trial Recruiting at 18 sites Phase1; Phase2 Interventional Ages 18 and up

Testing BI-1808 alone and with pembrolizumab for advanced cancers

Official title: Phase 1/2a Open-Label, Dose-Escalation, Multicenter, FIH, Consecutive-Cohort, Clinical Trial of BI-1808, a Monoclonal Antibody to TNFR 2 as a Single Agent and in Combination With Pembrolizumab (MK-3475-D20) in Subjects With Advanced Malignancies

Run by BioInvent International AB · NCT04752826 · Data updated 2026-11-12

This study is testing a new cancer treatment called BI-1808, both alone and with another drug called pembrolizumab, to see if it is safe and effective for people with advanced cancers that haven't responded to other treatments.

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment250 (estimated)
SponsorBioInvent International AB
Industry-sponsored
Drugs / interventionsimmunotherapy, pembrolizumab
Locations25 sites (Duarte, California and 24 other locations)
StatusRecruiting
StartedJanuary 25, 2021
Main results expectedJanuary 31, 2028
Study endsDecember 31, 2028
Registry record updatedSeptember 18, 2026
Trial IDNCT04752826 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults aged 18 and older with histologically confirmed advanced malignancies who are intolerant of or ineligible for standard therapies.

Probably not a fit

Patients with early-stage cancers or those who have not progressed after standard treatment may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial aims to evaluate the safety and tolerability of BI-1808, both as a single agent and in combination with pembrolizumab, in patients with advanced malignancies that have progressed after standard therapies. The study is structured in two phases: Phase 1 focuses on dose escalation to determine the maximum tolerated dose and safety profile, while Phase 2a will assess the drug's effectiveness and safety at the recommended doses. Participants will receive infusions every three weeks, and the study will include various cohorts based on specific cancer types.

Why it matters

Potential benefit: If successful, this treatment could offer a new therapeutic option for patients with advanced malignancies who have limited treatment choices.

How similar studies have gone: Other studies have shown promise with similar immunotherapy approaches, suggesting potential for success in this novel combination.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Able and willing to provide written informed consent.
* Aged 18 years or older.
* Histologically confirmed advanced or metastatic malignancy eligible for an enrolling study cohort.
* Disease progression following, intolerance of, ineligibility for, or refusal of applicable standard therapy.
* At least one measurable lesion according to the response criteria specified in the protocol.
* Eastern Cooperative Oncology Group performance status of 0 or 1.
* Life expectancy of at least 12 weeks.
* Adequate organ function.
* Willing and medically suitable to provide required tumor or skin biopsies.
* Meets the disease-specific and treatment-history requirements of the applicable Phase 2a cohort.
* For Phase 2a Part C: Histologically confirmed platinum-resistant high-grade serous or clear-cell ovarian carcinoma, prior platinum-based treatment as specified in the protocol, and suitability for paclitaxel treatment.

Exclusion Criteria:

1\. Active central nervous system metastases or carcinomatous meningitis.

* Active or clinically significant autoimmune disease, immunodeficiency, or use of prohibited immunosuppressive treatment.
* Prior treatment-related toxicity not recovered to the level specified in the protocol.
* Prior anticancer therapy, radiotherapy, immunotherapy, investigational treatment, or live vaccine within the protocol-defined washout period.
* History of clinically significant immune-mediated toxicity, including pneumonitis, associated with previous immune-checkpoint inhibitor treatment.
* Uncontrolled or clinically significant cardiovascular disease, serious infection, or another condition that could compromise safety or study participation.
* Major surgery without adequate recovery.
* Prior allogeneic tissue or solid-organ transplantation or active graft-versus-host disease.
* Pregnancy or breastfeeding, or unwillingness to comply with protocol-defined contraceptive requirements.
* Known hypersensitivity to a study treatment or its components.
* Another active malignancy, except for protocol-defined permitted malignancies.
* Participation in another interventional clinical trial that conflicts with this study.
* Unable or unlikely to comply with study procedures and requirements.
* For Phase 2a Part C: Receipt of prohibited colony-stimulating factors within the protocol-defined period before treatment.

Where it's running

  • City of Hope National Medical Center
    Duarte, California, United States
    Recruiting
  • Memorial Sloan Kettering Cancer Center
    New York, New York, United States
    Recruiting
  • University of Pennsylvania
    Philadelphia, Pennsylvania, United States
    Recruiting
  • Rigshospitalet
    Copenhagen, Denmark
    Recruiting
  • Herlev Hospital
    Herlev, Denmark
    Recruiting
  • Magyar Honvédség-Egészségügyi Központ
    Budapest, Hungary
    Recruiting
Show 19 more locations
  • START Madrid - Hospital Universitario Fundación Jiménez Díaz
    Madrid, Spain
    Recruiting
  • Hospital Universitario 12 de Octubre
    Madrid, Spain
    Recruiting
  • Sahlgrenska University Hospital
    Gothenburg, Sweden
    Recruiting
  • Skanes University Hospital
    Lund, Sweden
    Recruiting
  • Karolinska University Hospital, Solna
    Stockholm, Sweden
    Recruiting
  • University Hospital Birmingham
    Birmingham, United Kingdom
    Recruiting
  • University Hospitals of Leicester NHS Trust
    Leicester, United Kingdom
    Recruiting
  • Guy's and Saint Thomas' NHS Foundation Trust
    London, United Kingdom
    Recruiting
  • Sarah Cannon Research Institute UK
    London, United Kingdom
    Recruiting
  • The Royal Marsden Hospital NHS Foundation Trust
    London, United Kingdom
    Recruiting
  • The Christie NHS Foundation Trust
    Manchester, United Kingdom
    Recruiting
  • Southampton General Hospital
    Southampton, United Kingdom
    Recruiting
  • PRA Health Sciences - Hungary
    Budapest, Hungary
    Active not recruiting
  • Debreceni Egyetem Klinikai Központ
    Debrecen, Hungary
    Withdrawn
  • Byudzhetnoye Uchrezhdeniye Zdravookhraneniya Omskoy Oblasti - Klinicheskiy Onkologicheskiy Dispanser
    Omsk, Russia
    Terminated
  • National Medical Research Center VA Almazov
    Saint Petersburg, Russia
    Withdrawn
  • N.N. Petrov National Medical Research Center of Oncology
    Saint Petersburg, Russia
    Withdrawn
  • Institut Catala d'oncologia. Hospital Duran I Reynals
    Barcelona, Spain
    Not yet recruiting
  • Hospital Universitario Puerta de Hierro-Majadahonda, Madrid,
    Madrid, Spain
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.