Testing HER3-DXd for advanced solid tumor
Official title: A Study of HER3-DXd in Subjects With Locally Advanced or Metastatic Solid Tumors
HERTHENA-PanTumor01 (U31402-277): A Phase 2, Multicenter, Multicohort, Open-Label, Proof of Concept Study of Patritumab Deruxtecan (HER3-DXd; U3-1402) in Subjects With Locally Advanced or Metastatic Solid Tumors
- Phase 2
- 1 group
- Sites in Toronto, Vancouver and 1 more city
- Recruiting
Interventions
- Medication
HER3-DXd
Intravenous infusion 5.6 mg/kg administered Q3W on Day 1 of each 21-day cycle
Canadian Sites (4)
3 of 4 recruiting
- Recruiting
Cross Cancer Institute
Edmonton, Alberta
- Recruiting
Sunnybrook Research Institute
Toronto
- Recruiting
BC Cancer - Vancouver
Vancouver
- Completed
Princess Margaret Cancer Centre
Toronto
Eligibility Criteria
See who this study is looking for86 criteria
The trial’s own eligibility text, word for word from the registry. Only the trial site can say who takes part.
Inclusion
- +Disease progression while on or after having received treatment with ≥1 prior line of anti-programmed cell death protein (PD-1) or anti-programmed death-ligand 1 (PD-L1) based therapy (previous use of other immune checkpoint inhibitors \[ICIs\] \[ie, anti-CTLA4, anti- LAG-3\] is acceptable). Prior anti-PD-(L)1 therapy in the adjuvant setting is allowed if there is recurrence within 12 weeks of the last dose. If the participant had BRAFm melanoma, they must have had disease progression on BRAF/MEK inhibitor therapy as well.
- +Must have documented disease progression after having received 2 prior lines of therapy including previous PBC with or without an anti-PD-1 therapy-containing regimen (combined or sequential) in the advanced/metastatic setting.
- +Has HER2-positive gastric cancer as classified by ASCO-CAP guidelines and determined prior to enrollmentEnrolmentThe number of participants a study plans to include, or has included.Read more → by assessment in a local laboratory that is Clinical Laboratory Improvement Amendments certified (US sites) or accredited based on specific country regulations.
- +Participants must meet all of the following criteria to be eligible for enrollment into the study:
- +Sign and date the informed consent formInformed consentThe process of being told what taking part involves, then choosing freely.Read more → prior to the start of any study-specific qualification procedures. A separate tissue screeningScreeningThe checks done before joining, to see whether a study fits.Read more → consent will be obtained from all subjects to meet the baselineBaselineYour starting measurements, taken before treatment begins.Read more → tumor tissue requirement.
- +Participants aged ≥18 years (follow local regulatory requirements if the legal age of consent for study participation is \>18 years old).
- +Cutaneous (acral and non-acral) melanoma
- +Histologically or cytologically confirmed cutaneous (acral or non-acral) melanoma
- +Squamous cell carcinomas of the head and neck
- +Squamous cell carcinoma of the head and neck (with a primary location of oral cavity,oropharynx, larynx, hypopharynx) that is human papillomavirus (HPV) positive or negative (as determined by local standard). Excludes tumor location in the nasopharynx, nasal cavity, paranasal sinuses, and unknown primary locations.
- +Disease progression after having received treatment with ≥1 and \<3 prior lines of systemic therapy in the unresectable recurrent or metastatic setting.
- +Gastric or GEJ adenocarcinoma
- +Tumor tissue must be confirmed as negative for HER2 expression (immunohistochemistry \[IHC\] 0/1+ or IHC 2+/in situ hybridization negative) as classified by American Society of Clinical Oncology/College of American Pathologists (ASCO-CAP) guidelines and determined prior to enrollment by assessment in a local laboratory that is Clinical Laboratory Improvement Amendments certified (US sites) or accredited based on specific country regulations.
- +Disease progression after having received treatment with ≥2 prior lines of therapy that include PBC with or without anti-PD-1 therapy.
- +Ovarian Carcinoma
- +Pathologically documented high-grade serous epithelial ovarian cancer, primary peritoneal cancer, or fallopian tube cancer.
- +Documented disease progression ≥4 weeks after the last dose of PBC and \<6 months of last dose of PBC in the advanced or metastatic setting. Prior use of folate reductase alpha targeting antibody-drug conjugate (ADC) (ie, mirvetuximab soravtansine) is allowed.
- +Cervical Cancer
- +Pathologically or cytologically documented recurrent or persistent squamous, adenosquamous, or adenocarcinoma of the uterine cervix.
- +Disease progression after having received ≥1 line of systemic therapy in the recurrent or metastatic setting. This may include prior anti-PD-(L)1 treatment and/or tissue factor directed ADC (tisotumab vedotin \[TV\]) per regional standard of careStandard of careThe treatment normally given for a condition outside a study.Read more →.
- +Endometrial Cancer
- +Pathologically or cytologically documented endometrial cancer (carcinoma of any histological sub-type or endometrial carcinosarcoma), irrespective of microsatellite instability (MSI) or mismatch repair (MMR) status.
- +Documented disease progression after having received ≥1 prior line of therapy (maximum of 3) PBC containing systemic treatment and an anti-PD(L)-1 therapy-containing regimen (combined or sequential) in the advanced/metastatic setting.
- +Bladder Cancer
- +Pathologically or cytologically documented locally advanced/unresectable or metastatic urothelial carcinoma of the bladder, renal pelvis, ureter, or urethra. Histological variants are allowed if urothelial histology is predominant. Small cell/neuroendocrine tumors are not allowed even if mixed histology.
- +Required treatments can be given in combination or sequentially
- +Prior cisplatin-based therapy or PD-(L)1 inhibitor therapy given for the treatment of muscle invasive urothelial carcinoma is counted as 1 line of therapy
- +The same regimen administered twice in different disease settings will be counted as 1 line of prior therapy
- +Participants in the second-line setting who have previously received enfortumab vedotin and pembrolizumab in combination can be enrolled.
- +Esophageal Carcinoma
- +Pathologically or cytologically documented esophageal squamous cell carcinoma.
- +Pancreatic Carcinoma
- +Pathologically or cytologically documented unresectable or metastatic pancreatic adenocarcinoma.
- +Relapsed or disease progression after having received 1 prior line of systemic therapy in the locally advanced/metastatic setting.
- +Prostate Cancer
- +Pathologically or cytologically documented unresectable locally advanced or metastatic castration-resistant prostate cancer (CRPC).
- +Adenocarcinoma of the prostate without neuroendocrine differentiation or small cell histology.
- +Surgically or medically castrated, with testosterone levels of \<50 ng/dL.
- +Documented objective progression as determined by radiographic progression for subjects with measurable disease after androgen deprivation.
- +Relapsed or disease progression after having received treatment with ≥1 of the following novel hormonal agents: abiraterone, enzalutamide, apalutamide, or darolutamide.
- +Gastric Cancer 2L
- +Must have had gastric or GEJ adenocarcinoma confirmed as negative for HER2 expression (IHC 0/1+ or IHC 2+/in situ hybridization negative) as classified by American Society of Clinical Oncology/College of American Pathologists (ASCO-CAP) guidelines and determined prior to enrollment by assessment in a local laboratory that is Clinical Laboratory Improvement Amendments certified (US sites) or accredited based on specific country regulations.
- +cc. Relapsed or disease progression after receiving only anti-PD-(L)1 and PBC (ie, platinum doublet) administered in combination or sequentially for metastatic disease.
- +Breast Cancer dd. Pathologically documented breast cancer that is assessed as HER2 negative (IHC2+/ISH-, IHC1+, or IHC0 per ASCO/CAP guidelines), and HR positive (either ER and/or PgR positive \[ER or PgR ≥1%\] per ASCO/CAP guidelines). The HER2 and HR results must be from a tumor sample obtained in the metastatic setting.
- +Has ≥1 measurable lesion on CT or MRI as per RECIST v1.1 by investigatorPrincipal investigatorThe doctor or researcher responsible for running the study at a site.Read more → assessment. Prostate cancer participants with bone only disease may be eligible.
- +Provides a pretreatment tumor tissue sample that meets 1 of the following collection requirements:
- +Tumor biopsy from ≥1 lesion not previously irradiated and performed since progression with the most recent systemic cancer therapy regimen and prior to signature of the tissue ICF (ARCHIVAL PRETREATMENT sample).
- +Newly obtained pretreatment tumor biopsy from ≥1 lesion not previously irradiated and amenable to sampling, after signature of tissue ICF (FRESH PRETREATMENT sample)
- +Has Eastern Cooperative Oncology Group performance status (ECOG PS) of 0 or 1 at screening.
- +Exclusion CriteriaExclusion criteriaThe things that would prevent someone from taking part.Read more →
- +Participants who meet any of the following criteria will be disqualified from entering the study:
- +Has nasopharyngeal cancer.
- +Has mucosal or uveal melanoma.
- +Has a history of (non-infectious) interstitial lung disease (ILD), that required corticosteroids, has current ILD/pneumonitis, or suspected ILD/pneumonitis cannot be ruled out by imaging at screening.
- +Has clinically severe respiratory compromise (based on the investigator's assessment) resulting from intercurrent pulmonary illnesses
- +Is receiving chronic systemic corticosteroids dosed at \>10 mg prednisone daily or equivalent anti-inflammatory activity or any form of immunosuppressive therapy prior to Cycle 1 Day 1.
- +Participants who require use of bronchodilators, inhaled or topical steroids, or local steroid injections may be included in the study.
- +Had prior treatment with an anti-HER3 antibody and/or antibody-drug conjugate (ADC) that consists of an exatecan derivative that is a topoisomerase I inhibitor (eg, trastuzumab deruxtecan).
- +Has history of other active malignancy within 3 years prior to Cycle 1 Day 1, except the following:
- +Adequately treated nonmelanoma skin cancer
- +Adequately treated intraepithelial carcinoma of the cervix
- +Any other curatively treated in situ disease
- +Has any evidence of severe or uncontrolled diseases (eg, active bleeding diatheses, active serious infection) psychiatric illness/social situations, geographical factors, substance abuse, or other factors that, in the investigator's opinion, make it high risk for the subject to participate in the study or that would jeopardize compliance with the protocolProtocolThe detailed plan a study must follow.Read more →
- +Has previously received topoisomerase-1 inhibitors (e.g., irinotecan) treatment in the advanced or metastatic disease setting.
- +Has locally advanced unresectable or metastatic disease (not curable by surgery or radiation) as follows:
- +Must have had disease progression on anti-PD-(L)1 (either as monotherapy or in combination with chemotherapy or other therapies). Must also have had disease progression on a platinum-based chemotherapy (PBC) regimen either in the recurrent or metastatic setting or in the locally advanced setting with curative intent.
- +Relapsed or progressed after treatment with ≥1 prior line of therapy (maximum of 3) that contains anti-PD-(L)1 therapy in the perioperative or metastatic setting. At least 1 line of therapy must also contain one of the following treatment modalities: chemotherapy or enfortumab vedotin. Prior fibroblast growth factor receptor (FGFR)-inhibitor treatment for those who are eligible are allowed.
- +Relapsed or disease progression after having received ≥1 cytotoxic chemotherapy regimen that included a taxane.
- +Disease progression after having received treatment with only 1 prior line of systemic anti-cancer therapy that includes 5-FU-based chemotherapy with or without an anti-PD-1 therapy. For subjects whose tumors are claudin (CLDN) 18.2 positive, treatment with 5-FU based chemotherapy with CLDN18.2 directed therapy in the first-line setting is allowed.
- +Non-small Cell Lung Cancer aa. Histologically or cytologically documented metastatic or locally advanced nonsquamous NSCLC not amenable to curative surgery or radiation bb. Documentation of absence of actionable driver mutation (ie, ALK rearrangement, BRAF V600E mutation, EGFR-activating mutations \[exon 19 deletion or L858R mutation\], EGFR exon 20 insertion mutation, HER2 mutation, KRAS G12C mutation, MET exon 14 skipping mutation, NTRK 1/2/3 gene fusion, RET rearrangement, or ROS1 rearrangement). New testing for these genomic alterations is not required for Screening.
- +ee. Participant must have received one line of chemotherapy for mBC, but not more than one line and must have a clinically or radiologically documented evidence of tumor progression on or after CDK 4/6 inhibitor combined with endocrine therapy; previous treatments with phosphoinositide 3-kinase (PI3K) inhibitors, mammalian target of rapamycin (mTOR) inhibitors, protein kinase B (PKB) inhibitors also known as AKT-inhibitors and poly ADP ribose polymerase (PARP)-inhibitors are allowed.
Exclusion
- −Has HER2-positive gastric cancer as classified by ASCO-CAP guidelines and determined prior to enrollmentEnrolmentThe number of participants a study plans to include, or has included.Read more → by assessment in a local laboratory that is Clinical Laboratory Improvement Amendments certified (US sites) or accredited based on specific country regulations.
- −Participants who meet any of the following criteria will be disqualified from entering the study:
- −Has nasopharyngeal cancer.
- −Has mucosal or uveal melanoma.
- −Has a history of (non-infectious) interstitial lung disease (ILD), that required corticosteroids, has current ILD/pneumonitis, or suspected ILD/pneumonitis cannot be ruled out by imaging at screeningScreeningThe checks done before joining, to see whether a study fits.Read more →.
- −Has clinically severe respiratory compromise (based on the investigatorPrincipal investigatorThe doctor or researcher responsible for running the study at a site.Read more →'s assessment) resulting from intercurrent pulmonary illnesses
- −Is receiving chronic systemic corticosteroids dosed at \>10 mg prednisone daily or equivalent anti-inflammatory activity or any form of immunosuppressive therapy prior to Cycle 1 Day 1.
- −Participants who require use of bronchodilators, inhaled or topical steroids, or local steroid injections may be included in the study.
- −Had prior treatment with an anti-HER3 antibody and/or antibody-drug conjugate (ADC) that consists of an exatecan derivative that is a topoisomerase I inhibitor (eg, trastuzumab deruxtecan).
- −Has history of other active malignancy within 3 years prior to Cycle 1 Day 1, except the following:
- −Adequately treated nonmelanoma skin cancer
- −Adequately treated intraepithelial carcinoma of the cervix
- −Any other curatively treated in situ disease
- −Has any evidence of severe or uncontrolled diseases (eg, active bleeding diatheses, active serious infection) psychiatric illness/social situations, geographical factors, substance abuse, or other factors that, in the investigator's opinion, make it high risk for the subject to participate in the study or that would jeopardize compliance with the protocolProtocolThe detailed plan a study must follow.Read more →
- −Has previously received topoisomerase-1 inhibitors (e.g., irinotecan) treatment in the advanced or metastatic disease setting.
In plain language
Assembled directly from this trial’s registry record. Every sentence traces to a field below — nothing here is generated or interpreted.
What this study is
This study is testing a treatment for a condition.
Phase 2Phase 2A middle-stage study looking at what a treatment does and watching for side effects.Read more → — a middle-stage study in a few hundred people at most, looking at what the treatment does and watching for side effectsSide effectAn unwanted effect thought to be caused by the treatment itself.Read more →.
From the trial registry
Built from these fields:
- designModule.designInfo.primaryPurpose
- designModule.phases
Who receives what
Everyone in this study is in one group and receives HER3-DXd.
From the trial registry
Built from these fields:
- armsInterventionsModule.armGroups[].label
- armsInterventionsModule.armGroups[].type
- armsInterventionsModule.armGroups[].interventionNames
How the study is run
There is only one group in this study, so there is no assignment to different treatments.
This study is open-labelOpen-labelEveryone knows which treatment is being given — nothing is hidden.Read more →: everyone knows which treatment is being given, including you and the study team.
From the trial registry
Built from these fields:
- designModule.designInfo.allocation
- designModule.designInfo.maskingInfo.masking
Is there a placebo?
This study does not list a placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → group.
From the trial registry
Built from these fields:
- armsInterventionsModule.armGroups[].type
- armsInterventionsModule.armGroups[].interventionNames
Who the study is looking for
The study lists a minimum age of 18 years, with no upper limit given.
The study is open to people of any sex.
The study does not accept healthy volunteersHealthy volunteerSomeone without the condition being studied who takes part anyway.Read more →.
These are the criteria the study lists. Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can decide whether someone can take part.
From the trial registry
Built from these fields:
- eligibilityModule.minimumAge
- eligibilityModule.sex
- eligibilityModule.healthyVolunteers
How big and how long
The study aims to enrol about 740 people.
The study is currently expected to finish around October 2028.
The main measurement is taken over: BaselineBaselineYour starting measurements, taken before treatment begins.Read more → up until documented progressive disease, death, lost to follow-upFollow-upContinued check-ins after the treatment part is finished.Read more →, or withdrawal by the participant, up to approximately 27 months.
From the trial registry
Built from these fields:
- designModule.enrollmentInfo.count
- statusModule.completionDateStruct.date
- outcomesModule.primaryOutcomes[].timeFrame
What the study measures
Number of Participants With Objective Response Rate Assessed by InvestigatorPrincipal investigatorThe doctor or researcher responsible for running the study at a site.Read more → Following HER3-DXd Monotherapy (All CohortsCohortA group of participants sharing a characteristic, followed together.Read more → Except Prostate Cancer Cohort) — measured over BaselineBaselineYour starting measurements, taken before treatment begins.Read more → up until documented progressive disease, death, lost to follow-upFollow-upContinued check-ins after the treatment part is finished.Read more →, or withdrawal by the participant, up to approximately 27 months.
Proportion of Participants Achieving a ≥50% Decrease in PSA (Prostate Cancer Cohort Only) — measured over Baseline, each cycle before infusion (each cycle is 21 days), and end of treatment, up to approximately 27 months.
From the trial registry
Built from these fields:
- outcomesModule.primaryOutcomes[].measure
- outcomesModule.primaryOutcomes[].timeFrame
Source: NCT06172478 on ClinicalTrials.gov. The full registry text is further down this page — this summary never replaces it.
Not medical advice. What do these terms mean?
What is being tested — in plain terms
About HER3-DXdDrug
Intravenous infusion 5.6 mg/kg administered Q3W on Day 1 of each 21-day cycle
From the trial registry — its own words, unedited.
What a drug is here: A medicine — a chemical or small-molecule treatment — given as the thing being studied.
Read the full explanation → · in clinical review
Common questions
Answered from this trial’s registry record. Where the record doesn’t say, these answers say so rather than filling the gap.
Am I eligible for this trial?
Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can decide whether someone can take part. Concord cannot make that determination, and neither can any tool that has not examined you.
What the study lists: a minimum age of 18 years.
The full inclusionInclusion criteriaThe things you must have or be for a study to consider you.Read more → and exclusion criteriaExclusion criteriaThe things that would prevent someone from taking part.Read more → are published on this page, exactly as the study team wrote them.
The useful next step is to bring this trial to your doctor. Answering a few questions first gives them something concrete to review.
From the trial registry
- eligibilityModule.minimumAge
- eligibilityModule.eligibilityCriteria
Is there a placebo?
This study does not list a placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → group.
From the trial registry
- armsInterventionsModule.armGroups[].type
Would I know which treatment I am getting?
This study is open-labelOpen-labelEveryone knows which treatment is being given — nothing is hidden.Read more →: everyone knows which treatment is being given, including you and the study team.
There is only one group in this study, so there is no assignment to different treatments.
From the trial registry
- designModule.designInfo.maskingInfo.masking
- designModule.designInfo.allocation
Who can join?
The study lists a minimum age of 18 years, with no upper limit given.
It is open to people of any sex.
It does not accept healthy volunteersHealthy volunteerSomeone without the condition being studied who takes part anyway.Read more →.
Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can confirm whether a particular person can take part.
From the trial registry
- eligibilityModule.minimumAge
- eligibilityModule.sex
- eligibilityModule.healthyVolunteers
How long would this take?
The study's main measurement is taken over: BaselineBaselineYour starting measurements, taken before treatment begins.Read more → up until documented progressive disease, death, lost to follow-upFollow-upContinued check-ins after the treatment part is finished.Read more →, or withdrawal by the participant, up to approximately 27 months.
The study as a whole is currently expected to finish around 2028-10-10.
How long any one person takes part can differ from the study length. The study team can tell you what the schedule looks like in practice.
From the trial registry
- outcomesModule.primaryOutcomes[].timeFrame
- statusModule.completionDateStruct.date
How many people are taking part?
The study aims to enrol about 740 people.
From the trial registry
- designModule.enrollmentInfo.count
Where is this happening?
This study lists 8 locations, including: Toronto, Canada; Vancouver, Canada; Edmonton, Alberta, Canada; Saint Louis Park, Minnesota, United States; Saint Paul, Minnesota, United States; Buffalo, New York, United States, and 2 more.
Sites can open and close during a study, so confirm with the team before travelling.
From the trial registry
- trial_locations
About This Trial
This is a proof-of-concept study designed to investigate HER3-DXd monotherapy in locally advanced unresectable or metastatic solid tumors. The study is enrolling cohorts of participants with melanoma \[cutaneous/acral\], squamous cell carcinomas of the head and neck (SCCHN), HER2-negative gastric cancer ovarian carcinoma, cervical cancer, endometrial cancer, bladder cancer, esophageal carcinoma, pancreatic carcinoma, prostate cancer, second-line gastric cancer, lung cancer, and breast cancer.
Other Sites (5)
Health Partners Frauenshuh Cancer Center
Saint Louis Park, Minnesota, United States
Health Partners Cancer Center at Regions Hospital
Saint Paul, Minnesota, United States
Roswell Park Cancer Institute IDS
Buffalo, New York, United States
Memorial Sloan Kettering Hospital
New York, New York, United States
Fred Hutchinson Cancer Center
Seattle, Washington, United States
Think this trial might be right for you?
Complete a quick intake form and we will match you with this and other relevant trials based on your medical profile.
See if this trial could fit youThis page is for informational purposes only and does not constitute medical advice. Clinical trial eligibility can only be determined by the trial site after proper screening. Trial information is sourced from ClinicalTrials.gov and may not reflect the most current status. Always consult your healthcare provider before making decisions about clinical trial participation.