A Phase 2 interventional study of Neratinib and Trastuzumab Deruxtecan in Breast Cancer With Brain Metastasis and HER2-positive Breast Cancer, sponsored by Fudan University. Recruiting at 1 site in China. Open to female participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2026-09-28.
Sponsored by Fudan University · Phase 2, Interventional, and Treatment
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Among 39 studies testing neratinib in Breast Neoplasms — 7 open to participants now, 9 under way, 1 of them phase 3. neratinib · Breast Neoplasms.
Among the 39 studies testing neratinib in Breast Neoplasms, this one is the 9th largest by planned enrollment, is the only one that started in 2025, is one of 23 in phase 2, and was the 38th registered.
14,832 studies on the registry are indexed under Breast Neoplasms; 3,320 are open to participants now.
Browse Breast Neoplasms studies →7 of the 39 studies testing neratinib in Breast Neoplasms are open now, in 3 countries. Recruiting first, the newest first:
Baylor Research Institute · Sites in United States
Ages 18+ · Women only
Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University · Sites in China
Ages 18–70 · Women only
University Health Network, Toronto · Sites in Canada
Ages 18+
Ruth O'Regan · Sites in United States
Ages 18+
QuantumLeap Healthcare Collaborative · Sites in United States
Ages 18+
By country, each count listing its studies:
neratinib: first FDA approval 2017 (NERLYNX), first EMA approval 2018. What it is approved for, and how studies give it, is on its page →
Of the 2,399 Breast Neoplasms studies recruiting now, 1,570 (65%) set no upper age limit and 592 (25%) stop at 75 or younger; 103 take children under 18; 215 take healthy volunteers.
This study: 18 Years to 70 Years · female · no healthy volunteers.
The full table on the hub →This tab as a report to print or save as PDF → With an account.
39 studies; the count open now beside each. This study's row is marked.
A study in two phases is counted once above. Listed by phase, each with its combined phases: Phase 1 13 · Phase 2 31 · Phase 3 3
First in 2003; this study’s year is marked. 1 started in 2025.
By drug class, each counting the studies that test any of its medicines:
This study's planned enrollment of 202 is above the median of 72 across 10,903 interventional studies indexed under Breast Neoplasms.
Median enrollment 60 across the 39 interventional studies. Of the 26 that completed or were terminated, 21 (81%) have results posted.
This tab as a report to print or save as PDF → With an account.
15 of 39 have an industry lead sponsor. The 10 most frequent:
Fudan University is the lead sponsor of 1,317 studies on the registry; 645 are open to participants now.
260 studies in Breast Neoplasms by Fudan University: 122 open now, 142 under way, 31 of them phase 3. Of 64 finished, 0 (0%) have results posted.
Among the 260 studies in Breast Neoplasms by Fudan University, this one is the 86th largest by planned enrollment of the 199 interventional ones that give a count, is one of 36 that started in 2025, is one of 97 in phase 2, reaches primary completion later than 119 of the 141 other live ones, and was the 212th registered.
Fudan University’s Breast Neoplasms studies by the year they started, since 2003.
3 of the studies testing neratinib in Breast Neoplasms that are under way reach primary completion within a year, 0 of them phase 3. Phase 3 first, then by date:
| Study | Primary completion |
|---|---|
| NCT04886531Ruth O'ReganTrial of Pre-operative Neratinib and Endocrine Therapy With Trastuzumab in ER-Positive, HER-2 Positive Breast Cancers | 2026-12-22 |
| NCT06008275Baylor Research InstituteNeratinib in Combination With Ruxolitinib in Patients With mTNBC | 2027-06 |
| NCT05388149University Health Network, TorontoKadcyla And Neratinib for Interception of HER2+ Breast Cancer With Molecular Residual Disease | 2027-07 |
Add all 3 to your calendar (.ics) → With an account.
Among the 39 studies testing neratinib in Breast Neoplasms, from their registry updates:
Among Fudan University’s 260 in Breast Neoplasms:
This tab as a report to print or save as PDF → With an account.
A phase II, open-label, multicenter, randomized controlled trial exploring the efficacy and safety of Trastuzumab Deruxtecan combined with or without Neratinib in HER2-positive breast cancer with brain metastasis
This study is a prospective, multicenter, open-label, Phase II, randomized controlled clinical trial aimed at evaluating the efficacy and safety of T-DXd with or without neratinib in patients with HER2-positive breast cancer with brain metastases. All eligible subjects will be randomly assigned in a 1:1 ratio across multiple centers in China to receive either T-DXd combined with neratinib or T-DXd monotherapy until extracranial progression as defined by RECIST 1.1, unless unacceptable toxicity occurs, consent is withdrawn, or other criteria for discontinuation are met.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
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Participants must meet all of the following inclusion criteria in order to be enrolled in this study:
MRI or CT shows and meets one of the following conditions:
i) Untreated brain parenchymal metastases detected through imaging screening;
Ii) Stable or progressive brain parenchymal metastases that have undergone previous local treatment and meet one of the following conditions:
The main organ functions are basically normal, meeting the following conditions:
Exclusion Criteria:
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Subjects with any of the following conditions are not eligible for inclusion in this study:
Lung standard:
Researchers believe that substance abuse or medical conditions may interfere with participants' participation in clinical studies or the evaluation of clinical study results.
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).
Your pathology report is the document that shows this.
HER2 is a protein, made from the ERBB2 gene, that drives the growth of some cancers. A study may look for a level of the protein, extra copies of the gene, or a particular change in it.
In breast cancer, protein tests are read as HER2-positive, HER2-low or HER2-negative; other cancers use their own rules. Check which test result the study requires.
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).
Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.
The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.
It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.
After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Chronic obstructive pulmonary disease: long-term lung disease that makes it hard to breathe out, including emphysema and chronic bronchitis.
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
ECOG performance status
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Histologically or cytologically confirmed
The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).
Your pathology report is the document that shows this.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HER2
HER2 is a protein, made from the ERBB2 gene, that drives the growth of some cancers. A study may look for a level of the protein, extra copies of the gene, or a particular change in it.
In breast cancer, protein tests are read as HER2-positive, HER2-low or HER2-negative; other cancers use their own rules. Check which test result the study requires.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Metastases
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Brain metastases
Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).
Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Absolute neutrophil count (ANC)
The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.
It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Platelets
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Bilirubin
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ULN (upper limit of normal)
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ALT and AST (liver enzymes)
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Creatinine clearance (CrCl)
How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis B tests
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis C tests
Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.
After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HIV
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
COPD
Chronic obstructive pulmonary disease: long-term lung disease that makes it hard to breathe out, including emphysema and chronic bronchitis.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Autoimmune disease
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
T-DXd: 5.4mg/kg intravenously (IV) every 3 weeks (Q3W).
Drug: Trastuzumab Deruxtecan
T-DXd: 5.4mg/kg intravenously (IV) every 3 weeks (Q3W). Neratinib: 200mg po, D1-21, every 3 weeks (Q3W).
Drug: Neratinib · Drug: Trastuzumab Deruxtecan
Neratinib, as an irreversible pan-HER tyrosine kinase inhibitor (TKI), holds a unique position in the treatment of HER2-positive breast cancer. From a molecular perspective, Neratinib irreversibly binds to the intracellular kinase domains of HER1 (EGFR), HER2, and HER4 through covalent bonds, comprehensively blocking signal transduction of the HER family. This mechanism of action is markedly different from reversible TKIs such as lapatinib. Neratinib's irreversible binding characteristic allows for a more sustained inhibition of target activity, maintaining anti-tumor effects even after drug plasma concentrations have decreased. This feature is particularly important for HER2-positive breast cancer, which requires continuous suppression of proliferative signals.
Trastuzumab deruxtecan (T-DXd) is an antibody-drug conjugate (ADC) composed of an anti-HER2 monoclonal antibody (trastuzumab), a cleavable linker, and a topoisomerase I inhibitor (an exatecan derivative). It targets and binds to HER2-positive tumor cells, internalizes, and releases cytotoxic drugs to induce DNA damage and apoptosis. It also has a "bystander effect" that can kill neighboring tumor cells with low HER2 expression, enhancing anti-tumor activity. T-DXd has shown significant efficacy in HER2-positive advanced breast cancer, with key clinical trials (such as DESTINY-Breast03) confirming that its progression-free survival (PFS) and overall survival (OS) are superior to traditional second-line treatments, with a median PFS reaching 28.8 months. Additionally, for HER2-low-expressing (IHC 1+ or 2+/ISH-) metastatic breast cancer (in the DESTINY-Breast04 study), T-DXd can extend PFS and OS, becoming the first targeted therapy to alter the survival outcomes of such patients
Also known as: DS8201
Progression Free Survival(PFS)
Time to progressive disease (according to RECIST1.1)
Time frame: 24 months
CNS Progression-free survival (CNS-PFS)
Time from enrollment to the first radiographic documented disease progression (PD) of all CNS target lesions (RANO-BM criteria) or death from any cause without progression was recorded.
Time frame: 24 months
Objective response rate (ORR)
Partial response is defined as a decrease by 30% or more in sums of longest diameter of measurable target lesions
Time frame: 24 months
CNS Objective response rate (CNS-ORR)
The proportion of patients with complete response (CR) and partial response (PR) evaluated as the best response observed from enrollment to progression of all CNS target lesions assessed according to RANO-BM criteria among the total number of patients who could be evaluated.
Time frame: 24 months
Overall survival (OS)
Time from the enrollment to death of any cause
Time frame: 48 months
Safety and Tolerability
Safety and Tolerability Will be Assessed According to Standard (CTCAE Version 5.0) Toxicity Reporting Criteria.
Time frame: 24 months
Plan to share: No
No publications or documents are linked to this record.
Started Sep 2025 (actual). Primary completion is estimated for Aug 2029, 47 months after the start.
Of 1,070 non-industry phase 2 interventional studies under Breast Neoplasms, half reached primary completion within 56 months of starting (the median), counting those still running; a quarter within 34 and three quarters within 89. This study's planned 47 months is below that.
Counting every sponsor, half of 1,302 studies reached it within 51 months; a quarter within 30 and three quarters within 82.
Since we started tracking on Sep 25, 2026, the dates moved once, on Sep 28, 2026: start Nov 2025 → Sep 2025, primary completion Nov 2027 → Aug 2029 and completion Nov 2029 → Nov 2031.
Earlier changes are on the record history on ClinicalTrials.gov ↗
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
Contact study teamGet an email when the registry record changes — status, dates, results — or when someone posts here.
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Studies of the drug tested here: Neratinib