A Study of HFB301001 in Adult Patients With Advanced Solid Tumors
![]() |
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT05229601 |
Recruitment Status :
Recruiting
First Posted : February 8, 2022
Last Update Posted : May 1, 2023
|
- Study Details
- Tabular View
- No Results Posted
- Disclaimer
- How to Read a Study Record
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Soft Tissue Sarcoma Renal Cell Carcinoma Uterine Carcinosarcoma Hepatocellular Carcinoma Head and Neck Squamous Cell Carcinoma Melanoma | Drug: HFB301001 | Phase 1 |
This is a Phase I, first-in-human, open-label, dose escalation and expansion study in adult patients with advanced cancers. The study will comprise of:
- A Screening Period of up to 28 days
- A Treatment Period during which participants will receive the study drug on the first day of each cycle where each cycle is 28 days. Number of cycles depends on how the disease responds to the study drug
- A Follow-Up Period which involves 1 visit
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 84 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Dose Escalation Study of HFB301001 (OX40 Agonist Antibody) in Adult Patients With Advanced Solid Tumors |
Actual Study Start Date : | April 20, 2022 |
Estimated Primary Completion Date : | January 2024 |
Estimated Study Completion Date : | January 2024 |

Arm | Intervention/treatment |
---|---|
Experimental: HFB301001
Participants will receive HFB301001 via intravenous infusions
|
Drug: HFB301001
Dose Escalation: Participants will be administered dose level 1 in Cohort 1. Participants in Cohorts 2-4 will receive dose levels 2-4, respectively. Dose Expansion: Participants with certain cancer types will be administered the dose determined at dose escalation. |
- Number of participants with adverse events (AEs), serious AEs (SAEs), dose-limiting toxicities (DLTs), changes in laboratory values, vital signs and ECG parameters, and tolerability (dose interruptions, reductions, and dose intensity) [ Time Frame: Cycle 1 Day 1 to 30 days after the last dose of HFB301001 (each cycle is 28 days) ]
- To determine a Recommended Phase 2 Dose (RP2D) during Dose Expansion [ Time Frame: Cycle 1 Day 1 to 30 days after the last dose of HFB301001 (each cycle is 28 days) ]
- Objective Response Rate (ORR) as determined by Response Evaluation Criteria in Solid Tumors (RECIST)1.1 and immune-RECIST (iRECIST) [ Time Frame: Baseline to 30 days after the last dose of HFB301001 (each cycle is 28 days), assessed up to 3 years ]
- Disease Control Rate (DCR) as determined by RECIST1.1 and iRECIST [ Time Frame: Baseline to 30 days after the last dose of HFB301001 (each cycle is 28 days), assessed up to 3 years ]
- Duration of Response (DOR) as determined by RECIST1.1 and iRECIST [ Time Frame: Start of first response to first date of disease progression, clinical progression or death, whichever occurs first, assessed up to 3 years ]
- Progression Free Survival (PFS) as determined by RECIST1.1 and iRECIST [ Time Frame: Baseline to disease progression or death, whichever occurs first, assessed up to 3 years ]
- Minimum serum concentration (Cmin) [ Time Frame: Cycle 1 Day 1 to day of the last dose of HFB301001 (each cycle is 28 days) ]
- Maximum serum concentration (Cmax) [ Time Frame: Cycle 1 Day 1 to day of the last dose of HFB301001 (each cycle is 28 days) ]
- Area under the concentration versus time curve (AUC) [ Time Frame: Cycle 1 Day 1 to day of the last dose of HFB301001 (each cycle is 28 days) ]
- Terminal half-life (T1/2) [ Time Frame: Cycle 1 Day 1 to day of the last dose of HFB301001 (each cycle is 28 days) ]
- Serum concentration for measurement of anti-HFB301001 antibodies [ Time Frame: Cycle 1 Day 1 to day of the last dose of HFB301001 (each cycle is 28 days) ]
- To assess the pharmacodynamic (PD) effects of HFB301001 in the blood and in the tumor [ Time Frame: Cycle 1 Day 1 to Cycle 3 Day 2 (each cycle is 28 days) ]Percent change in immunologic changes to immune cells in the blood and tumor

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
-
Previously received the following lines of systemic therapy for the advanced/metastatic disease:
- Soft tissue sarcoma: at least 1 line of therapy
- Renal cell carcinoma: at least 2 lines of therapy;
- Uterine carcinosarcoma: at least 1 line of therapy;
- Hepatocellular carcinoma: at least 1 line of therapy
- Head and neck squamous cell carcinoma: at least 2 lines of therapy
-
Melanoma:
- BRAF V600E mutant: must have received at least 2 lines of therapy
- BRAF V600E wild type: must have received at least 1 line of therapy
- Suitable site to biopsy at pre-treatment and on-treatment
- Measurable disease as determined by Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 and immune-RECIST (iRECIST)
- Eastern Cooperative Oncology Group performance status of 0 or 1.
Exclusion Criteria:
- Systemic anti-cancer therapy within 2 weeks prior to start of study drug.
- For soft tissue sarcoma only: prior immune therapy or immune agonist antibodies
- For uterine carcinosarcoma patients only: prior immune therapy
- Therapeutic radiation therapy within the past 2 weeks
- Prior exposure to agents targeting the OX40 receptor;
- Active autoimmune disease requiring systemic treatment in the previous 2 years;
- Systemic steroid therapy (>10 mg/day of prednisone or equivalent) or any immune suppressive therapy.
-
Persisting toxicity of >Grade 1 relating to prior anti cancer therapy with the following exceptions:
- All grades of alopecia are acceptable;
- Endocrine dysfunction on replacement therapy is acceptable.
- Severe or unstable medical condition, including uncontrolled diabetes, coagulopathy, or unstable psychiatric condition;
- Major surgery within 2 weeks of the first dose of study drug;
- History or presence of drug or non-drug induced interstitial lung disease or pneumonitis ≥Grade 2;
- History of allergic reactions attributed to compounds of similar chemical or biologic composition to monoclonal antibodies or any excipient of HFB301001;
- Known active malignancy, with the exception of the specific cancer under investigation in this trial, that required treatment within the previous 2 years.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05229601
Contact: Jesse Cotugno, Clinical Trial Manager | +1(513)579-9911 | j.cotugno@medpace.com |
United States, Arizona | |
Mayo Clinic | Recruiting |
Scottsdale, Arizona, United States, 85259 | |
United States, California | |
USC/Norris Comprehensive Cancer Center | Recruiting |
Los Angeles, California, United States, 90033 | |
United States, Florida | |
Mayo Clinic | Recruiting |
Jacksonville, Florida, United States, 32224 | |
United States, Maryland | |
University of Maryland | Recruiting |
Baltimore, Maryland, United States, 21201 | |
United States, Massachusetts | |
Dana Farber Cancer Institute | Recruiting |
Boston, Massachusetts, United States, 02215 | |
United States, Minnesota | |
Mayo Clinic | Recruiting |
Rochester, Minnesota, United States, 55905 | |
United States, Virginia | |
NEXT Virginia Cancer Specialists | Recruiting |
Fairfax, Virginia, United States, 22031 | |
Spain | |
Hospital Universitario Vall d'Hebron | Recruiting |
Barcelona, Spain, 08035 | |
Hospital Universitario 12 de Octubre | Recruiting |
Madrid, Spain, 28041 | |
Hospital Clinico Universitario de Valencia | Recruiting |
Valencia, Spain, 46010 |
Responsible Party: | HiFiBiO Therapeutics |
ClinicalTrials.gov Identifier: | NCT05229601 |
Other Study ID Numbers: |
HFB-301001-01 2021-004854-46 ( EudraCT Number ) |
First Posted: | February 8, 2022 Key Record Dates |
Last Update Posted: | May 1, 2023 |
Last Verified: | April 2023 |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Carcinoma Sarcoma Squamous Cell Carcinoma of Head and Neck Carcinosarcoma Neoplasms, Glandular and Epithelial Neoplasms by Histologic Type |
Neoplasms Carcinoma, Squamous Cell Neoplasms by Site Neoplasms, Connective and Soft Tissue Head and Neck Neoplasms Neoplasms, Complex and Mixed |