Luminal BPhase 2Neo-CheckRayNCT03875573
Neo-adjuvant Chemotherapy Combined With Stereotactic Body Radiotherapy to the Primary Tumour +/- Durvalumab, +/- Oleclumab in Luminal B Breast Cancer:
A Phase 2 study testing Durvalumab, Stereotactic Body Radiotherapy and Oleclumab in people with Luminal B, run by Jules Bordet Institute at 7 sites in 2 countries.
Trial summary
Neo-CheckRay is a multicenter, open-label phase II study that randomizes luminal B breast cancer subjects candidate for neo-adjuvant chemotherapy in a 1:1:1 ratio in 3 arms: 1. the combination of weekly paclitaxel followed by dose-dense doxorubicin-cyclophosphamide (ddAC) and pre-operative radiation therapy (boost… Read more about this study
- Who is it for?
- Ages 18 years and older, women only
- Conditions the study is for
- Luminal B
- What is being tested?
- Durvalumab, Stereotactic Body Radiotherapy and Oleclumab
- Type of treatment
- Injection or infusion, Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 147 participants
- Where
- 7 sitesin 2 countries
- Study dates
- 6 Nov 2019to 30 Sep 2029
- Phase
- Phase 2
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- Women only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Age ≥ 18 years old
- Female
- ECOG performance status ≤ 1
- Weight ≥ 35 kg
- Histological diagnosis of invasive breast adenocarcinoma that is estrogen receptor-positive (ER-positive) and HER2- negative, as per the updated American Society of Clinical Oncology (ASCO) - College of American Pathologists (CAP) guidelines and performed according to local testing. In addition, only tumours with Proliferation Index Ki67 ≥ 15% or histology grade III are accepted.
- Agreement to perform new study related biopsies to provide tissue samples
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- MammaPrint genomic high risk score according to centralised testing, except for specific conditions as mentioned below. Mammaprint will only be tested for luminal B breast tumours with either Proliferation Index Ki67 ≥ 15% or histology grade III tumours. (Testing to be done during screening period).
- MammaPrint result status at time of termination of all other screening procedures
- MammaPrint is high risk: subject may be randomized.
- MammaPrint is low risk: subjet can not be randomized.
- MammaPrint result is not yet known:
- If the MammaPrint result is not known at time of termination of all other screening procedures, the investigator is allowed to randomize the subject and start study treatment without waiting for the result of the MammaPrint in the following situations: (Ki67 > 20 % or grade III) and Age<50 years+ cN0 OR Age ≥ 50 years + cN+ • Tumour size:
- If subject is cN0: tumour size ≥ 2 cm, as determined by MRI imaging.
- If subject is cN1, cN2 or cN3: tumour size ≥ 1.5 cm, as determined by MRI imaging.
- The requirement for an MRI is not applicable in the case of medical contraindications to perform MRI (e.g., obesity or claustrophobia). In this situation, tumour evaluations should be performed by ultrasound.
- Multifocal, multicentric unilateral or bilateral breast adenocarcinoma tumours are allowed provided that all biopsiable foci are ER+/HER2- according to local testing and all foci are able to receive SBRT treatment within the defined dosimetric constraints. In some cases a separate biopsy of every focus is not mandatory, but only if every of the following conditions are present:
- -small focal lesion
- -lesion in close proximity to the main primary cancer from which a biopsy was taken
- the investigator and the radiologist consider the lesion to be clearly related to the main primary breast cancer from which a biopsy was taken
- the lesion will be removed during the same lumpectomy than the main primary breast cancer For bilateral, multifocal or multicentric disease, the site selected for pre-treatment biopsy should correspond to the site of largest measurable disease meeting eligibility criteria. The location of tumour biopsy site (laterality, quadrant, position from the nipple and type of imaging modality to guide biopsy) should be collected.
- Serum pregnancy test (for subjects of childbearing potential) negative within 2 weeks prior to first dose of study administration.
- Women of childbearing potential must agree to use 1 highly effective method of contraception during the screening period, during the course of the study and at least 12 months after the last administration of study treatment. it is strongly recommended for the male partner of a female subject to also use male condom plus spermicide throughout this period.
- Adequate bone marrow function as defined below:
- Absolute neutrophil count ≥1500/µL, i.e. 1.5x10^9/L
- Hemoglobin ≥ 9.0 g/dL
- Platelets ≥100000/µL, i.e. 100x10^9/L
- Adequate liver function as defined below:
- Serum total bilirubin ≤ 1.5 x ULN. In case of known Gilbert's syndrome ≤ 3 x UNL is allowed
- AST (SGOT) ≤ 3.0 x ULN
- ALT (SGPT) ≤ 3.0 x ULN
- Adequate renal function as defined below:
- Creatinine ≤ 1.5 x UNL or eGFR ≥ 40ml/min/1.73m²
- Adequate coagulant function as defined below:
- International Normalized Ratio (INR) ≤ 1.5 x ULN
- Completion of all necessary screening procedures within 28 days prior to randomisation (except if written differently).
- Willingness to provide tissue and blood samples for immuno-monitoring and translational research activities
- Left ventricular ejection fraction (LVEF) ≥ 50%. LVEF performed in routine is accepted if done within 6 months prior to beginning of screening.
- Signed Informed Consent form (ICF) obtained prior to any study related procedure.
- Inclusion criterion for phase II only (all phase II subjects):
- Tumour sample provided for central PD-L1 IHC assessment. (Testing done during screening period).
- Inclusion criterion applicable to FRANCE only (all safety run-in and phase II subject):
- Affiliated to the French Social Security System (applicable only to subjects treated in France)
Who cannot join
- Pregnant and/or lactating women.
- Subject with a significant medical, neuro-psychiatric, substance abuse or surgical condition, currently uncontrolled by treatment, which, in the principal investigator's opinion, may interfere with completion of the study.
- TNM stage cT4 breast cancer including inflammatory breast cancer
- Presence of any distant metastasis
- Contra-indication for treatment by paclitaxel, doxorubicin or cyclophosphamide, or known allergy to any tested substances or any excipients (e.g; chemotherapy or immunotherapy formulations). Contra-indication for subjects with known sensitivity to acetaminophen/paracetamol, diphenhydramine or equivalent antihistamine (this is a contra-indication for treatment with oleclumab).
- Previously known contra-indication for treatment by radiation therapy such as rare genetic disorders associated with DNA repair disorders such as ataxia-telangiectasia (A-T), Nijmegen Breakage Syndrome (NBS) and Fanconi anemia.
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- Active or prior documented autoimmune disease (including inflammatory bowel disease, celiac disease, Wegner's granulomatosis) within the past 3 years. NOTE: Subjects with childhood atopy or asthma, vitiligo, alopecia, Grave's disease, Hashimoto's thyroiditis, or psoriasis not requiring systemic treatment (within the past 2 years) are not excluded
- Prior malignancy active within the previous 5 years, except for localised cancers that are considered to have been cured and in the opinion of the investigator present a low risk for recurrence. Examples include basal or squamous cell skin cancer, superficial bladder cancer, or carcinoma in situ of the cervix or breast
- Known history of, or any evidence of active, non-infectious pneumonitis.
- Active infection including:
- Tuberculosis (TB) (clinical evaluation that includes clinical history, physical examination and radiographic findings, and TB testing in line with local practice)
- Hepatitis B (known positive HBV surface antigen (HBsAg) result). Subjects with a past or resolved HBV infection (defined as the presence of hepatitis B core antibody [anti-HBc] and absence of HBsAg) are eligible.
- Hepatitis C. Subjects positive for hepatitis C (HCV) antibody are eligible only if polymerase chain reaction is negative for HCV RNA.
- Significant cardiovascular disease, such as New York Heart Association cardiac disease (Class II or greater), myocardial infarction, transient ischemic attack, or stroke within the previous 3 months, unstable arrhythmias, and/or unstable angina
- Medical condition requiring current systemic anticoagulation, or a history of congenital hypercoagulable condition. Subjects taking aspirin at doses < 325 mg per day are eligible provided that prothrombin time is within the institutional range of normal. Use of local anticoagulation for port maintenance is permitted.
- Subjects with history of venous thrombosis in the past 12 months prior to the scheduled first dose of study treatment (oleclumab).
- Diabetes mellitus Type 1 or poorly controlled Type 2 diabetes mellitus defined as a screening hemoglobin A1C ≥ 8 % or a fasting plasma glucose ≥ 160 mg/dL (or 8.8 mmol/L)
- Any live (attenuated) vaccine within 30 days of planned start of study therapy.
- Prior systemic immunosuppressive medication (excluding corticosteroids) within 30 days of planned start of study therapy.
- Prior radiation therapy to the ipsilateral breast.
- Prior immunotherapy, including tumour vaccine, cytokine, anti-CTLA4, PD-1/PD-L1, including durvalumab, blockage or similar agents.
- Concomitant use of other investigational drugs
- Any unresolved toxicity NCI CTCAE Grade ≥2 from previous anticancer therapy with the exception of alopecia, vitiligo, and the laboratory values defined in the inclusion criteria. Subjets with Grade ≥2 neuropathy will be evaluated on a case-by-case basis after consultation with the Study Physician. Subjects with irreversible toxicity not reasonably expected to be exacerbated by treatment with durvalumab or oleclumab may be included only after consultation with the Study Physician.
- Uncontrolled intercurrent illness, including but not limited to, ongoing or active infection, symptomatic congestive heart failure, uncontrolled hypertension, unstable angina pectoris, cardiac arrhythmia, interstitial lung disease, serious chronic gastrointestinal conditions associated with diarrhea, or psychiatric illness/social situations that would limit compliance with study requirement, substantially increase risk of incurring AEs or compromise the ability of the subject to give written informed consent.
- History or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with the subject's participation for the full duration of the trial, or is not in the best interest of the subject to participate, in the opinion of the treating investigator.
- Prior organ transplantation
- Subjects with urinary outflow obstruction
- Vulnerable persons according to the article L.1121-6 of the CSP, adults who are the subject of a measure of legal protection or unable to express their consent according to article L.1121-8 of the CSP.
Trial locations and contacts
7 sites in 2 countries.
7 sites in 2 countries
Belgium5 sites
Institut Jules Bordet
Brussels, 1000
Cliniques Universitaires Saint-Luc
Brussels, 1200
Universitaire Ziekenhuizen
Leuven, 3000
CHU UCL Namur Sainte-Elisabeth
Namur, 5000
GZA - Ziekenhuizen (Campus St. Augustinus)
Wilrijk, 2610
France2 sites
Centre Georges François Leclerc
Dijon, 21079
Institut Curie
Paris, 75248
About this study
Official title: Neo-adjuvant Chemotherapy Combined With Stereotactic Body Radiotherapy to the Primary Tumour +/- Durvalumab, +/- Oleclumab in Luminal B Breast Cancer: a Phase ll Randomised Trial
Neo-CheckRay is a multicenter, open-label phase II study that randomizes luminal B breast cancer subjects candidate for neo-adjuvant chemotherapy in a 1:1:1 ratio in 3 arms:
- the combination of weekly paclitaxel followed by dose-dense doxorubicin-cyclophosphamide (ddAC) and pre-operative radiation therapy (boost dose) on the primary tumour
- arm 1 with the addition of the anti-PD-L1 antibody durvalumab
- arm 2 with the addition of the anti-CD73 antibody oleclumab The primary tumour will be excised 2-6 weeks after completion of ddAC. A safety run-in is planned for the 6 first subjects before starting the randomized phase II trial. Those 6 subjects will receive the treatment given in Arm 3.
Read the detailed description
This trial consists of a safety run-in followed by a phase II randomised trial. The goal of the safety run-in is to assess the safety of adding SBRT to the neo-adjuvant systemic treatment. The doses of the IMPs will be identical in the safety run-in and the phase II randomised trial. Individual subject timelines are also identical in the safety run-in and the phase II randomised trial.
The safety run-in is done as a precursor to the phase II randomised part of the Neo-CheckRay trial. Six subjects will be included in the safety run-in. These subjects are not part of the phase II total recruitment.
Subjects in the safety run-in will receive the following treatments corresponding to arm 3 of the phase II randomised trial. This consists of:
- q1w paclitaxel 80 mg/m² IV for 12 administration (12 weeks) followed by q2w dose-dense doxorubicin-cyclophosphamide IV (60 mg/m² and 600 mg/m² respectively) for 4 administrations (8 weeks)
- Anti-PD-L1 antibody durvalumab 1500 mg IV q4w for 5 administration (20 weeks)
- Anti-CD73 antibody oleclumab 3000 mg IV q2w for 4 administrations (8 weeks), followed by q4w for 3 administrations (12 weeks)
- Pre-operative radiation therapy (boost dose) 3x8 Gy on the primary tumour at week 5
If all requirements are meet during the safety run-in, then the phase II part of the study will be opened. The phase II will consist of luminal B breast cancer subjects candidate for neo-adjuvant chemotherapy will be randomised in a 1:1:1 ratio between 3 arms:
- Arm 1: the combination of weekly paclitaxel 80 mg/m² IV followed by q2w dose- dense doxorubicin-cyclophosphamide (ddAC) (60 mg/m² doxorubicin IV and 600 mg/m² cyclophosphamide IV) and pre-operative radiation therapy on the primary tumour (3x8 Gy).
- Arm 2: drugs regimen of Arm 1 with the addition of the anti-PD-L1 antibody durvalumab IV 1500 mg q4w.
- Arm 3: drugs regimen of Arm 2 with the addition of the anti-CD73 antibody oleclumab IV 3000 mg q2w for 4 administrations, followed by q4w for 3 administrations.
The primary tumour will be excised 2-6 weeks after completion of ddAC. The study treatments end at surgery. All treatment after surgery, such as post-operative radiotherapy and hormonal therapy, will be performed according to standard of care and local site guidelines. The patient will then be followed for the next 5 years.
- Conditions
- Luminal B
- Being tested
- Durvalumab, Stereotactic Body Radiotherapy, Oleclumab
- Keywords
- Breast Cancer
- Medical subject headings
- Breast Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
DurvalumabDrug
Also called MEDI4736
an anti PD-L1 intravenous administration at 1500 mg every 4 weeks for 19 weeks.
Stereotactic Body RadiotherapyRadiation
Also called SBRT
Pre-operative radiation therapy (boost dose) 3x8 Gy on the primary tumour at week 5 given in 3 fractions. The 3 fractions will be spread at the minimum over 3 days and at the maximum over 6 days.
OleclumabDrug
Also called MEDI9447
an anti-CD73 intravenous administration at 3000 mg every 2 weeks for the first 4 administrations then every 4 weeks for the last 3 administrations.
| Study group | Role | What they receive |
|---|---|---|
| Chemotherapy and radiotherapy | Experimental | The combination of weekly paclitaxel 80 mg/m² IV followed by q2w dose-dense doxorubicin-cyclophosphamide (ddAC) (60 mg/m² doxorubicin IV and 600 mg/m² cyclophosphamide IV) and pre-operative radiation therapy on the primary tumour (3x8 Gy). Receives: Radiation: Stereotactic Body Radiotherapy |
| Chemotherapy and pre-operative radiotherapy plus durvalumab | Experimental | The combination of weekly paclitaxel 80 mg/m² IV followed by q2w dose-dense doxorubicin-cyclophosphamide (ddAC) (60 mg/m² doxorubicin IV and 600 mg/m² cyclophosphamide IV) and pre-operative radiation therapy on the primary tumour (3x8 Gy) with the addition of the anti-PD-L1 antibody durvalumab IV 1500 mg q4w. Receives: Drug: Durvalumab; Radiation: Stereotactic Body Radiotherapy |
| Chemotherapy & pre-op radiotherapy + durvalumab + oleclumab | Experimental | The combination of weekly paclitaxel 80 mg/m² IV followed by q2w dose-dense doxorubicin-cyclophosphamide (ddAC) (60 mg/m² doxorubicin IV and 600 mg/m² cyclophosphamide IV) and pre-operative radiation therapy on the primary tumour (3x8 Gy) with the addition of the anti-PD-L1 antibody durvalumab IV 1500 mg q4w and the addition of the anti-CD73 antibody oleclumab IV 3000 mg q2w for 4 administrations, followed by q4w for 3 administrations. Receives: Drug: Durvalumab; Radiation: Stereotactic Body Radiotherapy; Drug: Oleclumab |
What is being measured
The primary outcome is the main question the study is designed to answer.
Safety Run-in: Evaluation of the immune related or radiation therapy related toxicity of special interest
Immune related or radiation therapy related toxicity of special interest are identifitied as:
- Any Grade 4 immune-related AE
- Any ≥ Grade 3 colitis
- Any ≥ Grade 3 renal failure/nephritis
- Any ≥ Grade 3 non-infectious pneumonitis irrespective of duration
- Any Grade 3 immune-related AE, excluding colitis, renal failure/nephritis and pneumonitis, that does not downgrade to ≤ Grade 2 within 3 days after onset of the event despite maximal medical supportive care including systemic corticosteroids or does not downgrade to ≤ Grade 1 or baseline within 14 days
- Liver transaminase elevation ≥ 5 ULN or total bilirubin > 3 × ULN will be considered a DLT regardless of duration or reversibility
- Any increase in AST or ALT > 3 × ULN and concurrent increase in total bilirubin > 2 × ULN
Measured: 7 months
Safety Run-in: Evaluation of the feasibility of the primary surgery
Feasibility of performing surgery within 6 weeks after the last neo-adjuvant treatment. This would indicate that there were no significant delays or toxicities that would results in surgery being delayed.
Measured: 7 months
Phase II: Demonstration of the tumour response in arms 2 or 3 versus arm 1
To demonstrate improved tumour response of the primary tumour and nodal metastases in arms 2 or 3 versus arm 1 using residual cancer burden (RCB 0-1 vs. RCB 2-3) at time of surgery.
Measured: 24 months
Secondary outcomes (9)
Phase II: Evaluation of the rthe complete pathological response rate defined as ypT0/Tis ypN0
Absence of residual invasive disease, residual in situ carcinoma is accepted.
Measured: 24 months
Phase II: Evaluation of the complete pathological response rate defined as ypT0 ypN0
absence of residual invasive disease and in situ carcinoma.
Measured: 24 months
Phase II: Evaluation of the response to the primary tumour irrespective of the response to the pathological lymph nodes
Complete pathologic response rate (pCR) of the primary tumour (ypT0/ Tis), irrespective of the response rate of the resected nodal metastases
Measured: 24 months
Phase II: Evaluation of the response to the pathological lymph nodes irrespective of the response to the primary tumour
Complete pathologic response rate (pCR) of the resected nodal metastases (ypN0), irrespective of the response rate of the primary tumour.
Measured: 24 months
Phase II: Evaluation of the the feasibility to perform breast-sparing surgery of the arms 2 and 3 versus arm 1
% of breast conservation surgery in arms 2 and 3 versus arm 1
Measured: 24 months
Phase II: Demonstration of the an increase in TIL levels of the primary breast cancer between baseline and the week 6 biopsy
Change in TIL levels between baseline and the week 6 biopsy.
Measured: 24 months
Phase II: Evaluation of the ability to control invasive disease and survival in arms 2 and 3 versus arm 1 at year 3 and 5 years after surgery
Efficacy endpoints at 3 years and 5 years after surgery will be measured, as defined by the Standardized Definitions for Efficacy End Points in Neoadjuvant Breast Cancer Clinical Trials (NeoSTEEP) (88). The following endpoints will be assessed: event-free survival (EFS), breast cancer event-free survival (BC-EFS), overall survival (OS) and distant recurrence-free survival (DRFS). Furthermore, the occurrence of ipsilateral locoregional recurrence (breast, chestwall or locoregional nodal recurrence), ipsilateral local recurrence (breast or chest wall) (laterality of the index lesion), and ipsilateral locoregional nodal recurrence (laterality of the index lesion) will be assessed. The endpoints will be measured using regular follow-up investigations: lab work, clinical examination and annual breast ultrasound and mammography. Radiologic imaging will not be routinely performed, unless directed by abnormal blood results or clinical examination.
Measured: 5 years
Phase II: Evaluation of the severity and duration of AEs of the arms 2 and 3 versus arm 1
Duration and severity of AEs based on CTCAE 5.0
Measured: 5 years
Phase II: Evaluation of the the cosmetic changes to the breast of the arms 2 and 3 versus arm 1
Changes in breast appearance: breast fibrosis in whole breast, breast fibrosis in boost area, breast size, breast shape, nipple position, shape of the areola and nipple, skin color, appearance of surgical scar, evaluation of teleangiectasia and global cosmetic result. Information on cosmetic and plastic surgical procedures will be collected (for example: oncoloplastic surgery, breast implants, and other procedures).
Measured: 5 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted14 Mar 2019
- Study start6 Nov 2019
- Primary completion30 Nov 2024
- Study completion30 Sep 2029 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for Luminal BStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Neo-CheckRay is a multicenter, open-label phase II study that randomizes luminal B breast cancer subjects candidate for neo-adjuvant chemotherapy in a 1:1:1 ratio in 3 arms.
- Masking
- None (open label)
- Enrolment
- 147 participants (actual)
Sponsor and investigators
- Lead sponsor
- Jules Bordet Institute
- Sponsor type
- University, hospital or other
- Collaborators
- Institut Curie, AstraZeneca
- Responsible party
- Sponsor
- Investigators
- Alex De Caluwe, MD, Study chair, Jules Bordet Institute
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03875573
- Sponsor's protocol ID
- IJB-LBC-NEOCHECKRAY-2018
- Acronym
- Neo-CheckRay
- Status last verified
- Sep 2026
- First submitted
- 8 Feb 2019
- Last updated
- 7 Oct 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Publications
De Caluwe A, Desmoulins I, Cao K, Remouchamps V, Baten A, Longton E, Peignaux K, Joaquin Garcia A, Venet D, Arecco L, Agostinetto E, Nader-Marta G, Denis Z, Dhont J, Kristanto P, Catteau X, Larsimont D, Salgado R, Poortmans P, Stagg J, Sotiriou C, Piccart M, Ignatiadis M, Romano E, Buisseret L. Neoadjuvant stereotactic body radiation therapy with durvalumab and oleclumab in ER+HER2- breast cancer: a randomized phase 2 trial. Nat Med. 2026 Jul;32(7):2461-2472. doi: 10.1038/s41591-026-04453-z. Epub 2026 Jun 25.
PubMed 42350643De Caluwe A, Romano E, Poortmans P, Gombos A, Agostinetto E, Marta GN, Denis Z, Drisis S, Vandekerkhove C, Desmet A, Philippson C, Craciun L, Veys I, Larsimont D, Paesmans M, Van Gestel D, Salgado R, Sotiriou C, Piccart-Gebhart M, Ignatiadis M, Buisseret L. First-in-human study of SBRT and adenosine pathway blockade to potentiate the benefit of immunochemotherapy in early-stage luminal B breast cancer: results of the safety run-in phase of the Neo-CheckRay trial. J Immunother Cancer. 2023 Dec 6;11(12):e007279. doi: 10.1136/jitc-2023-007279.
PubMed 38056900De Caluwe A, Buisseret L, Poortmans P, Van Gestel D, Salgado R, Sotiriou C, Larsimont D, Paesmans M, Craciun L, Stylianos D, Vandekerckhove C, Reyal F, Isabelle V, Eiger D, Piccart M, Romano E, Ignatiadis M. Neo-CheckRay: radiation therapy and adenosine pathway blockade to increase benefit of immuno-chemotherapy in early stage luminal B breast cancer, a randomized phase II trial. BMC Cancer. 2021 Aug 6;21(1):899. doi: 10.1186/s12885-021-08601-1.
PubMed 34362344