Safety and Efficacy Study of CFI-402411 in Subjects With Advanced Solid Malignancies
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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: NCT04521413 |
Recruitment Status :
Recruiting
First Posted : August 20, 2020
Last Update Posted : February 6, 2023
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Condition or disease | Intervention/treatment | Phase |
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Advanced Solid Malignancies | Drug: CFI-402411 Drug: Pembrolizumab | Phase 1 Phase 2 |
This study will be a first-in-human study evaluating the safety and tolerability of CFI-402411 in subjects with advanced solid malignancies, when CFI-402411 is administered as a single agent or in combination with pembrolizumab. CFI-402411 is an oral pill that blocks the function of HPK1. Blocking HPK1 could stimulate an immune response against the tumor in patients. This immune response could be further enhanced when combined with pembrolizumab. The data obtained from this study will determine the dose and schedule and subject selection for further clinical studies.
Pre-clinical findings support further development of CFI-402411 as a novel anti-cancer agent, and the combination of CFI-402411 with pembrolizumab as a potential strategy to improve outcomes of subjects with advanced malignancies.
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 170 participants |
Allocation: | Non-Randomized |
Intervention Model: | Sequential Assignment |
Intervention Model Description: | Dose escalation and expansion for monotherapy and combination arms with pembrolizumab |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A First-In-Human, Phase 1/2 Study Of CFI-402411, a Hematopoietic Progenitor Kinase-1 (HPK1) Inhibitor, as a Single Agent and in Combination With Pembrolizumab in Subjects With Advanced Solid Malignancies |
Actual Study Start Date : | August 31, 2020 |
Estimated Primary Completion Date : | December 2023 |
Estimated Study Completion Date : | June 2024 |

Arm | Intervention/treatment |
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Experimental: A1: Monotherapy Escalation
Dose escalation arm with CFI-402411. CFI-402411 is administered orally once daily.
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Drug: CFI-402411
CFI-402411 is administered orally once daily. The starting dose is 80 mg/day for escalation arms and the recommended dose for the expansion arms.
Other Names:
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Experimental: A2: Monotherapy Biomarker
Dose escalation biomarker arm with CFI-402411. CFI-402411 is administered orally once daily.
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Drug: CFI-402411
CFI-402411 is administered orally once daily. The starting dose is 80 mg/day for escalation arms and the recommended dose for the expansion arms.
Other Names:
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Experimental: A3: Monotherapy Expansion
Dose expansion arm with CFI-402411 at its recommended phase 2 dose.
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Drug: CFI-402411
CFI-402411 is administered orally once daily. The starting dose is 80 mg/day for escalation arms and the recommended dose for the expansion arms.
Other Names:
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Experimental: B1: Combination Escalation
Dose escalation arm with CFI-402411 in combination with pembrolizumab (at its labeled dose and schedule).
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Drug: CFI-402411
CFI-402411 is administered orally once daily. The starting dose is 80 mg/day for escalation arms and the recommended dose for the expansion arms.
Other Names:
Drug: Pembrolizumab Pembrolizumab will be given at its labeled dose and schedule, 200 mg administered as an intravenous infusion over 30 minutes every 3 weeks.
Other Names:
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Experimental: B2: Combination Expansion
Dose expansion arm with the recommended phase 2 dose of CFI-402411 in combination with pembrolizumab (at its labeled dose and schedule).
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Drug: CFI-402411
CFI-402411 is administered orally once daily. The starting dose is 80 mg/day for escalation arms and the recommended dose for the expansion arms.
Other Names:
Drug: Pembrolizumab Pembrolizumab will be given at its labeled dose and schedule, 200 mg administered as an intravenous infusion over 30 minutes every 3 weeks.
Other Names:
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- To assess the incidence of adverse events of CFI-402411 as a single agent and at the recommended phase 2 dose (RP2D). [ Time Frame: 48 months ]The number of subjects who experience an adverse event that was possibly related to study drug.
- To assess the incidence of adverse events with CFI-402411 in combination with pembrolizumab and at the RP2D. [ Time Frame: 48 months ]The number of subjects who experience an adverse event that was possibly related to study drug.
- To examine best overall response rate in subjects treated at multiple dose levels of CFI-402411. [ Time Frame: 48 months ]Best overall response rate will be summarized by dose cohort and overall using the percent of patients in each tumor response category.
- To examine progression free survival in subjects treated at multiple dose levels of CFI-402411. [ Time Frame: 48 months ]Time from first dose to disease progression or death whichever occurs first will be calculated and summarized for all patients by dose cohort and overall.
- To identify the maximum tolerated dose of single agent CFI-402411 alone and in combination with pembrolizumab. [ Time Frame: 48 months ]Safety tables and pharmacokinetic tables will be assessed.
- To further assess the incidence of adverse events of CFI-402411. [ Time Frame: 48 months ]The number of subjects who experience an adverse event that was possibly related to study drug.
- To assess best overall response of CFI-402411 monotherapy and in combination with pembrolizumab. [ Time Frame: 48 months ]Best overall response rate will be summarized by dose cohort and overall using the percent of patients in each tumor response category.
- To assess overall response rates of CFI-402411 monotherapy and in combination with pembrolizumab. [ Time Frame: 48 months ]For all subjects the overall response rates of complete response and partial response will be calculated and summarized by dose cohort and overall.
- To assess overall survival of CFI-402411 monotherapy and in combination with pembrolizumab. [ Time Frame: 48 months ]The time from first dose until the date of death from any cause will be calculated and summarized for all patients by dose cohort and overall.
- To assess progression free survival of CFI-402411 monotherapy and in combination with pembrolizumab. [ Time Frame: 48 months ]Time from first dose to disease progression or death whichever occurs first will be calculated and summarized for all patients by dose cohort and overall.
- To assess duration of response of CFI-402411 monotherapy and in combination with pembrolizumab. [ Time Frame: 48 months ]The time from the first objective response to the time of documented disease progression or death due to any cause, whichever occurs first, will be calculated and summarized for all patients by dose cohort and overall.
- To assess the pharmacokinetic profile of CFI-402411 alone when it is administered in combination with pembrolizumab through AUC. [ Time Frame: 48 months ]Area under the plasma concentration (AUC) versus time curve from time 0 to time of least measurable concentration tabulated by dose group.
- To assess the pharmacokinetic profile of CFI-402411 alone when it is administered in combination with pembrolizumab through Cmax. [ Time Frame: 48 months ]Cmax will be assessed through the maximum measured plasma concentration occurring at Tmax tabulated by dose group.
- To assess the pharmacokinetic profile of CFI-402411 alone when it is administered in combination with pembrolizumab through Tmax. [ Time Frame: 48 months ]Tmax will be assessed by the time to achieve maximum plasma concentration and will be tabulated by dose group.
- To assess the pharmacokinetic profile of CFI-402411 alone when it is administered in combination with pembrolizumab though Cmin. [ Time Frame: 48 months ]Cmin will be calculated through the measured pre-dose plasma concentration and tabulated by dose group.
- To assess the pharmacokinetic profile of CFI-402411 alone when it is administered in combination with pembrolizumab through T1/2. [ Time Frame: 48 months ]Elimination half life will be calculated and tabulated by dose group.
- To evaluate the effect of CFI-402411 treatment on immune- or disease related biomarkers. [ Time Frame: 48 months ]The effects of CFI-402411 on pharmacodynamic biomarkers (cytokine levels) will be assessed by percent changes from baseline.

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 |
Key Inclusion Criteria: Study-Wide Eligibility (Across All Study Parts):
- Age > 18 years old
- Have progressed after ≥ 1, but no more than 3 regimens of systemic therapies for recurrent / metastatic disease.
- Subjects must have measurable disease.
- Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
Part A1: Monotherapy Dose Escalation Inclusion Criteria
1. Histological or cytological confirmation of advanced solid malignancy that is refractory to or not a candidate for current standard treatment(s) and for whom no standard therapy is available.
Part A2: Biomarker-Focused Monotherapy Backfills Inclusion Criteria
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Histological or cytological confirmation of one of the advanced cancers listed below;
- NSCLC
- SCLC
- cutaneous melanoma
- Merkel cell carcinoma
- squamous cell carcinoma of head and neck, anal canal, or skin
- urothelial cancer
- clear cell or non-clear cell renal cell carcinoma
- triple negative breast cancer
- endometrial cancer (regardless of MSI status)
- cervical cancer
- gastroesophageal cancer
- hepatocellular cancer
- any histology if known to be microsatellite-instability high (MSI-H)
- Tumors must be refractory to or not a candidate for current standard treatment(s) and for whom no standard therapy exists.
Part A3: Monotherapy Expansion Inclusion Criteria
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Histological or cytological confirmation of one of the advanced cancers listed below;
- NSCLC cancer any histology
- SCLC
- cutaneous melanoma
- Merkel cell carcinoma
- squamous cell carcinoma of head and neck, anal canal, or skin
- urothelial cancer
- clear cell or non-clear cell renal cell carcinoma
- triple negative breast cancer
- endometrial cancer (regardless of MSI status)
- cervical cancer
- gastroesophageal cancer
- hepatocellular
- any histology if known to be microsatellite-instability high (MSI-H)
- Tumors must be refractory to or subjects intolerant of current standard treatment(s) and for whom no standard therapies are available.
- Optional biopsies: Subjects that consent to optional fresh tumor biopsies must have at least one non-target soft tissue tumor lesion that can be biopsied.
Part B1: CFI-402411 in Combination with Pembrolizumab Dose Escalation Inclusion Criteria
- Subjects must be deemed eligible by the Investigator to receive pembrolizumab.
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Histological or cytological confirmation of one of the advanced cancers listed below (list may vary in each country, USA shown here);
- NSCLC cancer any histology
- SCLC
- cutaneous melanoma
- Merkel cell carcinoma
- squamous cell carcinoma of head and neck, anal canal, or skin
- urothelial cancer
- clear cell or non-clear cell renal cell carcinoma
- triple negative breast cancer
- endometrial cancer (regardless of MSI status)
- cervical cancer
- gastroesophageal cancer
- hepatocellular cancer
- any histology if known to be microsatellite-instability high (MSI-H)
Tumors must be refractory to or subjects intolerant of current standard treatment(s) or for whom no standard therapy is available.
Part B2: CFI-402411 in Combination with Pembrolizumab Expansion Inclusion Criteria
- Subjects must be deemed eligible by the Investigator to receive pembrolizumab
-
Histological or cytological confirmation of one of the advanced cancers listed below (list may vary in each country, USA shown here);
- non-small cell lung cancer any histology
- SCLC
- cutaneous melanoma
- Merkel Cell carcinoma
- squamous cell carcinoma of head and neck, anal canal, or skin
- urothelial cancer
- clear cell or non-clear cell renal cell carcinoma
- triple negative breast cancer
- endometrial cancer (regardless of MSI status)
- gastroesophageal cancer
- hepatocellular cancer
- any histology if known to be microsatellite-instability high (MSI-H)
- Tumors must be refractory to or subjects intolerant of current standard non-IO treatment(s) or for whom no standard therapy is available.
Key Exclusion Criteria: Study-Wide Eligibility (Across All Study Parts)
Subjects will be excluded from the study if any of the following criteria is met;
- Previous treatment with an HPK1 inhibitor in other clinical trials.
- Diagnosis of autoimmune-based disease or clinically significant auto-immune disorders.
- Have symptomatic congestive heart failure, active angina pectoris or recent myocardial infarction (within 6 mos).
- Have chronic atrial fibrillation.
- Known central nervous system metastasis.
- Stroke or transient ischemic attack, or other ischemic events or thromboembolic events within 3 months of study enrollment.
- A history of QTc prolongation or a marked baseline prolongation of QT/QTc interval or a history of additional risk factors for TdP (e.g., heart failure, hypokalemia, family history of Long QT Syndrome).

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): NCT04521413
Contact: Treadwell Therapeutics Clinical Trials | +1-416-455-7510 | clinicaltrials@treadwelltx.com |
United States, California | |
University of California San Diego | Recruiting |
La Jolla, California, United States, 92093 | |
Contact: Ceonne Kim cek008@health.ucsd.edu | |
The Angeles Clinic | Recruiting |
Los Angeles, California, United States, 90025 | |
Contact: Michele Azada mazada@theangelesclinic.org | |
United States, Connecticut | |
Yale Cancer Center | Not yet recruiting |
New Haven, Connecticut, United States, 06519 | |
Contact: Ingrid Palmer ingrid.palma@yale.edu | |
United States, Florida | |
Florida Cancer Specialists | Recruiting |
Sarasota, Florida, United States, 34232 | |
Contact: Donna Jones djones@flcancer.com | |
United States, Michigan | |
START - Mid-West | Recruiting |
Grand Rapids, Michigan, United States, 49546 | |
Contact: Robinson Katie katie.robinson@startmidwest.com | |
United States, Tennessee | |
SCRI - Nashville | Recruiting |
Nashville, Tennessee, United States, 37023 | |
Contact: Miller Elizabeth asksarah@sarahcannon.com | |
United States, Texas | |
MD Anderson | Recruiting |
Houston, Texas, United States, 77030 | |
Contact: Munir Chowdhury MChowdhury@mdanderson.org | |
START - San Antonio | Recruiting |
San Antonio, Texas, United States, 78229 | |
Contact: Isabel Jimenez isabel.jimenez@startsa.com | |
United States, Virginia | |
Virginia Cancer Specialist | Recruiting |
Fairfax, Virginia, United States, 22031 | |
Contact: Melissa Hackmaster melissa.hackmaster@usoncology.com | |
Canada, Alberta | |
Cross Cancer Institute | Recruiting |
Edmonton, Alberta, Canada, T6G1Z2 | |
Contact: Carly Mack Carly.Mack@albertahealthservices.ca | |
Canada, Ontario | |
The Ottawa Hospital | Recruiting |
Ottawa, Ontario, Canada, K1H8L6 | |
Contact: Scott Laurie | |
Princess Margaret Cancer Centre | Recruiting |
Toronto, Ontario, Canada, M5G2M9 | |
Contact: Ashley Adile ashley.adile@uhn.ca | |
Hong Kong | |
Prince of Wales Hospital | Recruiting |
Sha Tin, Hong Kong | |
Contact: Jane Koh Jane@clo.cuhk.edu.hk |
Principal Investigator: | Omid Hamid, Dr | The Angeles Clinic, Los Angeles |
Responsible Party: | Treadwell Therapeutics, Inc |
ClinicalTrials.gov Identifier: | NCT04521413 |
Other Study ID Numbers: |
TWT-101 |
First Posted: | August 20, 2020 Key Record Dates |
Last Update Posted: | February 6, 2023 |
Last Verified: | July 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Plan Description: | It is too early to determine whether we will make IPD available - we do not yet have a process written on this. Field will be updated once our policy / process is written. |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
advanced tumors pembro keytruda pembrolizumab 2411 CFI-402411 first in human first-in-human hematopoietic progenitor kinase-1 inhibitor |
HPK1 advanced solid malignancies solid malignancies TWT-101 TWT101 UHN University Health Network Treadwell Therapeutics |
Neoplasms Pembrolizumab Antineoplastic Agents, Immunological |
Antineoplastic Agents Immune Checkpoint Inhibitors Molecular Mechanisms of Pharmacological Action |