ClinicalTrials.gg
RecruitingNCT05795101TRUDIUpdated Oct 9, 2026

TRUDI: TDXD+Durva in HER2+/Low IBC

A Phase 2 interventional study of Trastuzumab deruxtecan and Durvalumab in Invasive Breast Cancer, Inflammatory Breast Cancer Stage III and HER2-positive Breast Cancer, sponsored by Filipa Lynce, MD. Recruiting at 3 sites in United States. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-09.

Sponsored by Filipa Lynce, MD · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Started May 2023; still recruiting 3 years 6 months later.
Phase
Phase 2
Study type
Interventional
Enrollment
63
Allocation
Non-randomized
Ages
18 Years and older
Sex
Female
01

Study summary

The purpose of this study is to test the safety and effectiveness of an investigational drug combination (trastuzumab deruxtecan and durvalumab) to learn whether the intervention works in treating Human Epidermal growth factor Receptor-2 (HER2)-expressing inflammatory breast cancer.

The names of the study drugs involved in this study are:

  • Trastuzumab deruxtecan
  • Durvalumab
Read the detailed description

This is a phase 2 open label study of neoadjuvant trastuzumab deruxtecan plus durvalumab for patients with stage III, HER2-positive or HER2-low inflammatory breast cancer (IBC), who have not received prior therapy for ipsilateral breast cancer.

Participants will be enrolled into one of two study treatment groups: HER2 positive IBC (Cohort 1) or HER2 low IBC (Cohort 2).

Research procedures including screening for eligibility, clinic visits for treatment, tumor biopsies, and blood tests.

The U.S. Food and Drug Administration (FDA) has not approved Durvalamab or Trastuzumab deruxtecan for inflammatory breast cancer, but both have been approved for other uses.

Participation in this study is expected to last about 22 months.

It is expected that about 63 people will take part in this research study.

The pharmaceutical company, AstraZeneca, is supporting this research study by providing the study drugs and funding.

02

Conditions studied

  • Invasive Breast Cancer
  • Inflammatory Breast Cancer Stage III
  • HER2-positive Breast Cancer
  • HER2 Low Breast Adenocarcinoma
  • Breast Cancer

Keywords

  • Invasive Breast Cancer
  • Inflammatory Breast Cancer Stage III
  • HER2-positive Breast Cancer
  • HER2 Low Breast Adenocarcinoma
  • Breast Cancer
03

In context

Inflammatory Breast Neoplasms

112 studies on the registry are indexed under Inflammatory Breast Neoplasms; 7 are open to participants now.

This study's planned enrollment of 63 is close to the median of 58 across 96 interventional studies indexed under Inflammatory Breast Neoplasms.

Browse Inflammatory Breast Neoplasms studies →

Lead sponsor

Filipa Lynce, MD is the lead sponsor of 2 studies on the registry; 1 is open to participants now.

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

04

Who can participate

Ages eligible
18 Years and older
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

  • Participants must have a histological or cytological diagnosis of invasive breast cancer.
  • All histologic subtypes are eligible.
  • Participants must have a clinical diagnosis of stage III inflammatory breast cancer within the past 6 months
  • -positive status as determined locally by the current ASCO/CAP guidelines or HER2-low tumor expression (IHC 2+/ISH-, IHC 1+/ISH-, or IHC 1+/ISH untested) (note: ISH may be determined by either fluorescence in situ hybridization [FISH] or dual in situ hybridization [DISH])
  • Any ER and PR expressions are permitted but must be known
  • Participants must be treatment-naïve
  • Participants must agree to undergo two research of the tumor (if safely accessible, as determined by the treating investigator): at baseline (prior to the first treatment) and after the first week of treatment on C1D8. Previously collected archival tissue will also be obtained on all participants. For participants for whom the tumor is not safely accessible, this archival tissue needs to be located and availability confirmed at time of registration.
  • Pre- and women or male patients ≥ 18 years of age
  • performance status 0-1 ( > 60%, see Appendix A).
  • ≥ 50% within 28 days prior to enrollment
  • Participants must have normal organ and marrow function prior to enrollment as defined below:

    • ≥2,000/mcL
    • ≥100,000/mcL
    • ≥ 9.0 g/dl
    • /PT/aPTT ≤1.5 × unless participant is receiving anticoagulant therapy as long as PT or aPTT is in therapeutic range of anticoagulant
    • Total ≤1.5 × institutional upper limit of normal (ULN)(or ≤2.0 x ULN in patients with documented Gilbert's Syndrome)
    • (SGOT)/ALT(SGPT) ≤2.5 × institutional ULN
    • Serum creatinine ≤1.5 × institutional ULN OR ≥ 30 mL/min/ 1.73m2 for participants with creatinine levels above institutional ULN.
    • Serum albumin ≥2.5 g/dL
    • International normalized ratio (INR)/prothrombin time (PT) and either partial thromboplastin or activated partial thromboplastin time (aPTT) ≤1.5 × ULN
  • Women of (WOCBP) and WOCBP who are partners of male participants must agree to use one highly effective non-hormonal form of or two effective forms of non-hormonal contraception for the duration of study treatment with durvalumab and 7 months after the last dose of study treatment
  • Males who are sexually active with WOCBP must agree to follow instructions for method(s) of contraception for the duration of study treatment with durvalumab and 4 months after the last dose of study treatment
  • Must have a of at least 12 weeks
  • Body weight >30 kg
  • The participant must be capable of understanding and complying with the protocol and willing to sign a written document

Exclusion criteria

Exclusion Criteria:

  • Has received prior systemic anti-cancer therapy for the current diagnosis of inflammatory breast cancer, including chemotherapy, immunotherapy, or targeted therapy
  • Has received any radiotherapy or surgery for the current diagnosis of inflammatory breast cancer. Tumor are not considered surgery for the purpose of enrollment.
  • Prior to durvalumab or the of durvalumab or trastuzumab deruxtecan or history of severe hypersensitivity reactions to other monoclonal antibodies.
  • Major surgery within 4 weeks prior to study treatment initiation. Patients must have recovered from any effects of any major surgery.
  • Uncontrolled intercurrent illness, including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, uncontrolled hypertension, unstable angina pectoris, uncontrolled cardiac arrhythmia, serious chronic gastrointestinal conditions associated with diarrhea, or psychiatric illness/social situations that would limit compliance with study requirements, substantially increase risk of incurring AEs, or compromise the ability of the patient to give written .
  • Participant has a medical condition that requires chronic systemic therapy (> 10 mg of prednisone daily or equivalent) or any other form of medication (including disease modifying agents) and has required such therapy in the last 2 years. Replacement therapy (e.g. thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic therapy.
  • Active or prior documented or inflammatory disorders (including inflammatory bowel disease [eg, colitis or Crohn's disease], diverticulitis [with the exception of diverticulosis], systemic lupus erythematosus, sarcoidosis syndrome, Wegener syndrome [granulomatosis with polyangiitis], Graves' disease, and rheumatoid arthritis, hypophysitis, uveitis, etc). The following are exceptions to this criterion:

    -- Patients with vitiligo or alopecia, Patients with hypothyroidism (eg, following Hashimoto syndrome) stable on hormone replacement, Patients with any chronic skin condition that does not require systemic therapy, Patients with celiac disease controlled by diet alone, who may also be included, but only after consultation with the Principal Investigator, Patients without active disease in the last 5 years, who may also be included but only after consultation with the Principal Investigator

  • History of (non-infectious) ILD/pneumonitis that required steroids, has current ILD/pneumonitis, or where suspected ILD/pneumonitis cannot be ruled out by imaging at screening.
  • Lung-specific intercurrent illnesses including, but not limited to, any underlying pulmonary disorder (ie, pulmonary emboli within 3 months of the study enrollment, severe asthma, severe (COPD), restrictive lung disease, pleural effusion etc.), and any autoimmune, connective tissue or inflammatory disorders with pulmonary involvement (ie, rheumatoid arthritis, Sjogren's syndrome, sarcoidosis etc.), and prior pneumonectomy
  • interval (QTcF) prolongation to > 470 msec on screening
  • Any factors that increase the risk of QTc prolongation or risk of arrhythmic events, such as heart failure, hypokalemia, potential for torsades de pointes, congenital long QT syndrome, family history of long QT syndrome or unexplained sudden death under 40 years of age, or any concomitant medication known to prolong the QT interval
  • Any of the following procedures or conditions in the 6 months prior to enrollment: coronary artery bypass graft, angioplasty, vascular stent, myocardial infarction, angina pectoris, congestive heart failure ( Functional Classification Grade ≥2), and stroke. Subjects with troponin levels above at screening (as defined by the manufacturer), and without any myocardial infarction related symptoms, should have a cardiology consultation before enrollment to rule out myocardial infarction.
  • Cardiac outside institutional range of normal or \<50% (whichever is higher) as measured by echocardiogram (or multiple-gated acquisition [MUGA] scan if an echocardiogram cannot be performed or is inconclusive).
  • History of another primary , except for Malignancy treated with curative intent and with no known active disease ≥5 years before the first dose of study treatment and of low potential risk for recurrence. Adequately treated non-melanoma skin cancer or lentigo maligna without evidence of disease, Adequately treated carcinoma in situ without evidence of disease
  • History of venous thromboembolism in the past 3 months.
  • History of active primary immunodeficiency.
  • Active infection including tuberculosis (clinical evaluation that includes clinical history, physical examination and radiographic findings, and tuberculosis testing in line with local practice), (known positive hepatitis B virus [HBV] surface antigen [HBsAg] result) or virus (HCV). Patients with a past or resolved HBV infection (defined as the presence of hepatitis B core antibody [anti-HBc] and absence of HBsAg) are eligible. Patients positive for hepatitis C antibody are eligible only if the polymerase chain reaction is negative for HCV RNA. Some medications used for these conditions have drug-drug interactions with the study treatment.
  • Known to have previously tested positive for (HIV) (positive HIV 1/2 antibodies)(HIV testing is not required for participation on this study)
  • Receipt of a within 30 days prior to study treatment initiation. Examples of live vaccines include, but are not limited to, the following: measles, mumps, rubella, varicella/zoster, yellow fever, rabies, BCG, and typhoid vaccine. The use of the inactivated seasonal influenza vaccine is allowed.
  • Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the study, interfere with the subject's participation for the full duration of the study, or is not in the best interest of the subject to participate, in the opinion of the treating investigator.
  • Use of potent inhibitors or inducers or substrates of or substrates of CYP2C9 or CYP2D6 within 2 weeks before the first dose of study treatment (3 weeks for St John's Wort)
  • Use of hydroxychloroquine in \<14 days prior to Day 1 of trastuzumab deruxtecan treatment
  • History of
  • Female patients who are pregnant, breastfeeding or of who are not willing to employ effective from screening to 6 months after the last dose of durvalumab and at least 7 months after the final administration of trastuzumab deruxtecan due to the potential for teratogenic effects. And unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother
Terms in these criteria, in plain language(36)

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.

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.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

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.

Karnofsky performance status (KPS)

A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.

Studies often ask for 60 or 70 and above. Your doctor gives the score.

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.

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).

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

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.

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.

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.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

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.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

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.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

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.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

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.

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.

COPD

Chronic obstructive pulmonary disease: long-term lung disease that makes it hard to breathe out, including emphysema and chronic bronchitis.

QT and QTc

On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.

The study may name a correction formula and a limit in milliseconds, often around 450–480.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

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.

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.

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.

Live vaccines

Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.

CYP3A (CYP3A4) inhibitors and inducers

CYP3A is a group of enzymes, mainly CYP3A4, in the liver and gut that break down many medicines. Some medicines, supplements and foods (grapefruit, St John’s wort) slow them down or speed them up, which changes how much of a study drug stays in the body.

Studies list them so they can be avoided or switched; bring a list of everything you take, including supplements.

Leptomeningeal disease

Cancer that has spread to the leptomeninges, the thin layers covering the brain and spinal cord, and the fluid between them. It is not the same as brain metastases.

Criteria often treat it separately, and many studies leave it out even where treated brain metastases are allowed.

Reproductive potential

Able to have children. For women this usually means from the first period until menopause, unless permanently unable to through surgery; for men, unless permanently sterile. Read who the line is about — participants, women, men, or their partners.

Criteria about it usually ask for contraception during the study and for a time after it.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
63 participants (estimated)

Study arms

  • Experimental
    HER2 Positive

    Participants will be enrolled into one of two cohorts: HER2 positive IBC (cohort 1) and HER2 low IBC (cohort 2). * HER2-positive determined locally by the current ASCO/CAP guidelines * Participants will receive trastuzumab deruxtecan plus durvalumab for eight cycles prior to surgery. (Cycle Length is 21 days) * After surgery, Participants will receive therapy per physician's choice and to reflect current standard of care.

    Drug: Trastuzumab deruxtecan · Drug: Durvalumab

  • Experimental
    HER2-Low

    Participants will be enrolled into one of two cohorts: HER2 positive IBC (cohort 1) and HER2 low IBC (cohort 2) * HER2-low tumor expression (IHC 2+/ISH-, IHC 1+/ISH-, or IHC 1+/ISH untested) * Participants will receive trastuzumab deruxtecan plus durvalumab for eight cycles prior to surgery (Cycle Length is 21 days) * After surgery, Participants will receive therapy per physician's choice and to reflect current standard of care.

    Drug: Trastuzumab deruxtecan · Drug: Durvalumab

Interventions

  • via IV, protocol determined dosage once per cycle up to eight cycles. Each cycle will last for 21 days (three weeks).

    Also known as: Enhertu

  • via IV, protocol determined dosage once per cycle up to eight cycles. Each cycle will last for 21 days (three weeks).

06

What researchers measure

Primary outcomes

  1. Pathological complete response (pCR) Rate

    pCR rate is the proportion of participants with absent invasive carcinoma in the breast and lymph nodes at time of surgery; in situ disease only is considered pCR; if off-treatment prior to surgery than considered not pCR.

    Time frame: Assessed on surgical tissue: surgery occurs no later than 6 weeks post 8 cycles of neo-adjuvant therapy (one cycle=21 days)

Secondary outcomes

  1. Residual Cancer Burden (RCB) Response

    RCB response is the number of participants by RCB category; the RCB calculator used is from M.D Anderson with parameters (see References for link).

    Time frame: Assessed on surgical tissue; surgery occurs +day 14 and no later than 6 weeks post 8 cycles of neo-adjuvant therapy (one cycle=21 days)

  2. Event Free Survival (EFS)

    EFS defined from the time of registration until the occurrence of the first of the following events: * Progression of disease that precludes surgery; * Local/regional recurrence: a recurrent or new invasive ipsilateral breast cancer, invasive breast cancer in the axilla, regional lymph nodes, chest wall, or skin of the ipsilateral breast; * Contralateral invasive breast cancer; * Distant recurrence: metastatic disease that has either been biopsy confirmed or clinically diagnosed as recurrent invasive breast cancer; or * Death from any cause. In the absence of an event, EFS is censored at date last disease assessment. t-year EFS to be estimated by Kaplan-Meier method, with time "t" specified according to median follow-up at time of reporting.

    Time frame: Disease assessed every 6 weeks by chest xray (+/- 1 week) until completion of 8 cycles of neo-adjuvant therapy (one cycle=21 days); Follow-up assessments post-surgery every 6 months (+/- 8 weeks) until participant withdrawal or death up to 4 years

  3. Distant progression or distant disease-free survival (DP/DDFS)

    DP/DDFS defined from the time of registration until the occurrence of the first of the following events: * Distant progression of disease prior to surgery; * Distant recurrence: metastatic disease that has either been biopsy confirmed or clinically diagnosed as recurrent invasive breast cancer; or * Death from any cause. In the absence of an event, DP/DDFS is censored at date last disease assessment. t-year DP/DDFS to be estimated by Kaplan-Meier method, with time "t" specified according to median follow-up at time of reporting.

    Time frame: Disease assessed every 6 weeks by chest xray (+/- 1 week) until 8 cycles of neo-adjuvant therapy (one cycle=21 days); Follow-up assessments post-surgery every 6 months (+/- 8 weeks) until participant withdrawal or death up to 4 years

07

Study locations

3 of 3 sites recruiting
08

References and documents

Individual participant data

Plan to share: Yes — The Dana-Farber / Harvard Cancer Center encourages and supports the responsible and ethical sharing of data from clinical trials. De-identified participant data from the final research dataset used in the published manuscript may only be shared under the terms of a Data Use Agreement. Requests may be directed to Sponsor Investigator or designee. The protocol and statistical analysis plan will be made available on Clinicaltrials.gov only as required by federal regulation or as a condition of awards and agreements supporting the research.

Supporting information: Study protocol, Statistical analysis plan

Time frame: Data can be shared no earlier than 1 year following the date of publication

Access criteria: Contact the Belfer Office for Dana-Farber Innovations (BODFI) at innovation@dfci.harvard.edu

Data sharing details ↗ · www.dfhcc.harvard.edu

09

Timeline

1 registry update 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

Started May 2023 (actual). Primary completion is estimated for Dec 2027, 54 months after the start.

Of 21 phase 2 interventional studies under Inflammatory Breast Neoplasms, half reached primary completion within 94 months of starting (the median), counting those still running; a quarter within 63 and three quarters within 109. This study's planned 54 months is below that.

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

Registered
Feb 8, 2023
First posted
Apr 3, 2023
StartActual
May 4, 2023
Primary completionEst.
Dec 1, 2027
CompletionEst.
Dec 1, 2032
Last update
Oct 9, 2026
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.
Minor edits
Nothing that changes what the study is or who can join. Edited: verification date and oversight details
1 update, last Oct 9, 2026
Show all 1 update
  1. Oct 9, 2026
    Minor edits only
    + 2 other changes: verification date and oversight details

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 ↗

10

Registry details

Key details

Study ID
NCT05795101
Lead sponsor
Filipa Lynce, MD
Responsible party
Filipa Lynce, MD (Sponsor Investigator, Dana-Farber Cancer Institute) — Sponsor-investigator
First posted
Apr 3, 2023
Start date
May 4, 2023
Primary completion
Dec 1, 2027 (estimated)
Completion
Dec 1, 2032 (estimated)
Last update
Oct 9, 2026

Study contacts

Filipa Lynce, MD
Contact
filipa_lynce@dfci.harvard.edu
(617) 632-3800
Filipa Lynce, MD
principal investigator · Dana-Farber Cancer Institute

Oversight

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

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Studies of the drugs tested here: Trastuzumab deruxtecan · Durvalumab

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