ClinicalTrials.gg
Not yet recruitingNCT07300215Updated Dec 23, 2025

An Exploratory Study on Individualized Neoadjuvant Treatment Regimens for Early HR+/HER2+ Breast Cancer

A Phase 2 interventional study of individualized neoadjuvant treatment in Breast Cancer, sponsored by The First Affiliated Hospital of Bengbu Medical University. Not yet recruiting. Open to female participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2025-12-23.

Sponsored by The First Affiliated Hospital of Bengbu Medical University · Phase 2, Interventional, and Treatment

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Phase
Phase 2
Study type
Interventional
Enrollment
60
Allocation
Not applicable
Ages
18 Years to 75 Years
Sex
Female
01

Study summary

HR+/HER2+ breast cancer belongs to a special type of tumor with dual-channel signal activation. However, in clinical treatment, the preferred approach is usually the inhibition of the HER2 signaling pathway. Therefore, the non-pCR rate after neoadjuvant therapy is relatively high (about 60%). To optimize the neoadjuvant treatment strategy for HR+/HER2+ breast cancer, increase the pCR rate of neoadjuvant treatment, and improve the prognosis of patients, our research group intends to conduct a prospective clinical and translational study. By observing the clinical efficacy and changes in biomarkers, individualized treatment for HR+/HER2+ breast cancer will be carried out. Patients who respond well to HER2-targeted therapy will be identified early, and for those without early relief, targeted combined dual-channel inhibition therapy with endocrine treatment will be adopted. The effectiveness and safety of the individualized neoadjuvant treatment strategy for HR+/HER2+ breast cancer patients will be evaluated. In addition, this study aims to focus on the neoadjuvant chemotherapy mechanism of HR+/HER2+ breast cancer, and combine the establishment and validation of effective disease models to provide theoretical basis and experimental support for achieving precise treatment and clinical transformation.

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Conditions studied

  • Breast Cancer

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03

In context

Breast Neoplasms

14,832 studies on the registry are indexed under Breast Neoplasms; 3,320 are open to participants now.

This study's planned enrollment of 60 is below the median of 72 across 10,903 interventional studies indexed under Breast Neoplasms.

Browse Breast Neoplasms studies →

Lead sponsor

The First Affiliated Hospital of Bengbu Medical University is the lead sponsor of 18 studies on the registry; 13 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
Female
Accepts healthy volunteers
No

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.

Inclusion criteria

  • The patient must meet all of the following criteria to be included in the study:

    1. The tumor stage must be in accordance with the 8th edition of the AJCC standard, being stage II-III for the initial diagnosis;
    2. The age must be between 18 and 75 years (inclusive of 18 and 75), and the patient must be female;
    3. All patients must have been confirmed as HR+/+. The estrogen receptor (ER) must be positive (>10%) or the progesterone receptor (PR) must be positive (>10%), and the HER2 must be positive. HER2 positivity is defined as an immunohistochemistry (IHC) score of 3+, or a score of 2+ and positive in in situ hybridization (ISH) (ISH amplification rate ≥ 2.0);
    4. The score must be 0-1;
    5. According to the 1.1 standard, there must be at least one ;
    6. The functional levels of the organs must meet the following requirements: (a) Blood routine: ≥ 1.5×109/L; ≥ 90×109/L; ≥ 90g/L; (b) Blood biochemistry: ≤ 1.5×; and AST ≤ 3×ULN; BUN and Cr ≤ 1.5×ULN and rate ≥ 50 mL/min; (c) Cardiac echocardiography: ≥ 50%:
    7. The subject voluntarily joins this study, signs the , has good compliance and is willing to cooperate with follow-up.

Exclusion criteria

Exclusion Criteria:

  • (1) Has received any form of anti-tumor treatment (chemotherapy, radiotherapy, molecular targeted therapy, endocrine therapy, etc.) in the past; (2) Is currently receiving other anti-tumor drug treatment; (3) Has had any other malignant tumor within the past 5 years, except for cured cervical carcinoma in situ, basal cell carcinoma or squamous cell carcinoma of the skin, or minimally invasive papillary thyroid cancer after radical surgery; (4) Has severe dysfunction of important organs such as the heart, liver, and kidneys; (5) Has difficulty swallowing, chronic diarrhea, and intestinal obstruction, and has multiple factors that affect the administration and absorption of the drugs; (6) Has participated in other drug clinical trials within 4 weeks before enrollment and has received the drugs; (7) Has a history of immunodeficiency diseases, including positive test, , active viral hepatitis, or having other acquired or congenital immune deficiency diseases, or having a history of organ transplantation; (8) Has a known history of allergic reaction to the components of this study drug; (9) Has had any heart disease, including: requiring drug treatment or arrhythmia; myocardial infarction; heart failure; any other heart disease judged by the investigator as unsuitable for participation in this trial; (10) Pregnant or lactating female patients, female patients with reproductive capacity and positive baseline pregnancy test results; (11) According to the investigator's judgment, has serious accompanying diseases that endanger the patient's safety or affect the patient's completion of the study (including but not limited to severe hypertension that cannot be controlled by drugs, severe diabetes, active infection, etc.); (12) Has a clear history of neurological or mental disorders, including epilepsy or dementia; (13) The investigator deems that the patient is not suitable for participating in this study in any other circumstances.
Terms in these criteria, in plain language(18)

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.

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.

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.

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.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

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.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

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.

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.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

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.

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.

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.

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.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

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.

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.

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.

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.

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.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    treatment group

    Drug: individualized neoadjuvant treatment

Interventions

  • Drugindividualized neoadjuvant treatment

    For HR+/HER2+ breast cancer patients treated with TCbHP, after 2 cycles of treatment, they were classified according to the therapeutic effect into the effective group and the group without early response. The effective group continued to receive TCbHP treatment for another 4 cycles, while the group without early response changed to the neoadjuvant treatment regimen of trastuzumab dual-target combined with exemestane and palbociclib for 4 cycles. Evaluation methods: Early non-response is defined as the results of the examination after the end of the 2nd cycle of treatment meeting any of the following criteria: 1. MRI, ultrasound: PD/SD of lymph nodes or primary lesion, PR but tumor regression \< 50%; 2. Histological pathological examination:Changes in immunohistochemical molecular typing;The decrease in Ki-67 compared to the baseline is less than 20%;PIK3CA mutation.

This study also gives Trastuzumab, Palbociclib, Exemestane. No intervention listed here names it: that was found by reading the record.

06

What researchers measure

Primary outcomes

  1. tpCR rate,total physiological complex response

    After the resection of the primary tumor, microscopic examination of the breast and the ipsilateral axillary lymph nodes revealed no invasive tumor cells (ypT0/is ypN0)

    Time frame: From the time of enrollment to one month after the surgery

Secondary outcomes

  1. bpCR,breast physiological complex response

    After the primary tumor was removed, microscopic examination of the breast revealed no invasive tumor cells (ypT0/is)

    Time frame: From the time of enrollment to one month after the surgery

  2. EFS,Event-free survival

    The time from the start of medication to the occurrence of any of the following events for the first time: disease progression making surgical treatment impossible, local or distant recurrence, death due to any cause, etc.

    Time frame: baseline,1year,up to 2year

  3. ORR,Objective Response Rate

    The proportion of patients whose tumor volume has decreased by 30% and has remained stable for more than four weeks is referred to as the sum of complete response (CR) and partial response (PR).

    Time frame: 6-12 months

  4. OS,Overall Survival

    Refers to the period from the start of medication use until death occurs due to any cause.

    Time frame: baseline,1year,up to 2year

  5. adverse event

    Collect all adverse events that occurred in all subjects from the signing of the informed consent to 28 days after the cessation of medication, including clinical symptoms and abnormal vital signs, as well as abnormalities in laboratory tests. Record the clinical manifestations, severity, occurrence time, duration, treatment methods, prognosis, and determine the correlation between these events and the test drug.

    Time frame: up to 2year

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Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: Yes

Supporting information: Study protocol

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Dec 2025; primary completion for Nov 2027, 22 months later.

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 22 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.

How these figures are worked out, and which studies are left out of them.

Registered
Dec 10, 2025
First posted
Dec 23, 2025
StartEst.
Dec 20, 2025
Primary completionEst.
Nov 1, 2027
CompletionEst.
Nov 1, 2027
Last update
Dec 23, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 23, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT07300215
Lead sponsor
The First Affiliated Hospital of Bengbu Medical University
Responsible party
Gongsheng, Jin (chief physicians, The First Affiliated Hospital of Bengbu Medical University) — Principal investigator
First posted
Dec 23, 2025
Start date
Dec 20, 2025 (estimated)
Primary completion
Nov 1, 2027 (estimated)
Completion
Nov 1, 2027 (estimated)
Last update
Dec 23, 2025

Study contacts

Gongsheng Jin
Contact
jgs2007@qq.com
13095520028

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Dec 2025. You cannot join it, but the record below documents what was studied.

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Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

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Studies of the drugs tested here: Trastuzumab · Palbociclib

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