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CLINICAL STUDY · NCT05710328

Testing the Role of FDG-PET/CT to Predict Response to Therapy Prior to Surgery for HER2-positive Breast Cancer, The DIRECT Trial

Active, not recruitingPhase 2Interventional

Sponsored by ECOG-ACRIN Cancer Research Group

Condition
Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, HER2-Positive Breast Carcinoma, Invasive Breast Carcinoma
Study locations
102 reported sites
Study updated
19 Oct 2026
Source
ClinicalTrials.gov

Overall study status is shown above. Individual hospitals may have a different recruitment status.

THE STUDY

About this study

This phase II trial tests how well an imaging procedure called fludeoxyglucose F-18 (FDG) positron emission tomography/computed tomography (PET/CT) works in predicting response to standard of care chemotherapy prior to surgery in patients with HER2-positive stage IIa-IIIc breast cancer. FDG is a radioactive tracer that is given in a vein before PET/CT imaging and helps to identify areas of active cancer. PET and CT are imaging techniques that make detailed, computerized pictures of areas inside the body. The use of FDG-PET/CT may help doctors better decide if a patient needs more or less treatment before surgery in order to get the best response. This study evaluates whether FDG-PET/CT is useful in predicting a patient's response to standard of care chemotherapy.
Full official title
Interim FDG-PET/CT for PreDIcting REsponse of HER2+ Breast Cancer to Neoadjuvant Therapy: DIRECT Trial
Detailed description
PRIMARY OBJECTIVE:

I. To estimate the negative predictive value (NPV) of neoadjuvant interim (ni)FDG-PET/CT for pathologic complete response (pCR), using delta maximum standardized uptake value corrected for lean body mass day 15 (deltaSULmaxD15), completed through central review, of the primary breast cancer at a threshold of 40%, in patients treated with neoadjuvant HER2-directed therapy.

SECONDARY OBJECTIVES:

I. To estimate the sensitivity, specificity, and positive predictive value (PPV) of niFDG-PET/CT for pCR, using deltaSULmaxD15 of the primary breast cancer at a threshold of 40%, in patients treated with neoadjuvant HER2-directed therapy.

II. To evaluate the performance of niFDG-PET/CT, using deltaSULmaxD15 of the primary breast cancer at a threshold of 40%, as a predictor of 3-year event-free survival (EFS) from time of study registration.

EXPLORATORY OBJECTIVES:

I. To estimate the NPV of niFDG-PET/CT for pCR, using deltaSULmaxD15 of the primary breast cancer at a grid of alternative thresholds ranging from 30% to 60%, in patients treated with neoadjuvant HER2-directed therapy.

II. To compare deltaSULmaxD15 using automated image analysis of FDG-PET/CT by AutoPERCIST (trademark) to standard PET analysis software.

OUTLINE:

Patients receive FDG intravenously (IV), undergo PET/CT, receive standard of care chemotherapy, and undergo standard of care surgery on study.

PARTICIPATION

Who may participate

Minimum age
18 Years
Maximum age
Not reported
Sex eligibility
All sexes
Healthy volunteers
Not accepted

Only the study team can confirm eligibility. The registry criteria below are not a medical recommendation.

Full inclusion and exclusion criteria
Inclusion Criteria:

* Patients (all genders) must be \>= 18 years of age.
* Patient must have the ability to understand and the willingness to sign a written informed consent document. Patients with impaired decision-making capacity (IDMC) who have a legally authorized representative (LAR) or caregiver and/or family member available will also be considered eligible.
* Patient must have an Eastern Cooperative Oncology Group (ECOG) performance status of 0-2.
* Patient must have histologically confirmed HER2-positive primary invasive breast carcinoma by American Society of Clinical Oncology (ASCO)/College of American Pathologists (CAP) guidelines that has been determined by local testing.
* Patient must have known (either positive or negative) hormone receptor (estrogen receptor \[ER\] or progesterone receptor \[PR\]) status by local testing, per ASCO/CAP guidelines. Patients with either hormone receptor-positive or hormone receptor- negative HER2-positive breast cancer are eligible.
* Patient must have American Joint Committee on Cancer (AJCC) 8th Edition stage IIa-IIIc according to anatomic staging table at diagnosis and below criteria.

* Patients without nodal involvement (cN0) are eligible if T size \> 2.0 cm (T2-4)
* Patients with nodal involvement (cN1-3) are eligible if T2-4
* Patients with clinical T4d are not eligible
* Patients with bilateral invasive breast cancers are eligible if both cancers are HER2-positive and at least one meets all protocol eligibility criteria and neither cancer renders the patient ineligible.
* Patients with multiple ipsilateral invasive tumors are eligible as long as all tumors are HER2-positive and at least one tumor focus meets all eligibility criteria. Multiple lesions that appear part of the same index tumor do not require additional biopsy/HER2 testing.
* Patient must plan to start a standard neoadjuvant pertuzumab (or other biosimilars) based regimen.
* Patients with a prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of this imaging intervention are eligible for this trial.
* Patients with human immunodeficiency virus (HIV) on effective anti-retroviral therapy with undetectable viral load within 6 months of registration are eligible for this trial.
* Patient must be participating in the trial at an institution which has agreed to perform the imaging research studies, completed the Eastern Cooperative Oncology Group-American College of Radiology Imaging Network Cancer Center Group (ECOG-ACRIN) defined PET/CT scanner qualification procedures and received ECOG-ACRIN PET/CT scanner approval.

* For patients who completed the baseline (T0) FDG-PET/CT PRIOR to registration, neoadjuvant pertuzumab-based regimen must start after study registration and within 21 days after the T0 scan.

* Patients must not have used colony stimulating growth factors within 14 days prior to completing a T0 scan done prior to registration.

Exclusion Criteria:

* Patient must not have any prior treatment for the current breast cancer, including surgery, chemotherapy, hormonal therapy, radiation or experimental therapy.
* Patient must not be pregnant or breast-feeding due to the potential harm to an unborn fetus and possible risk for adverse events in nursing infants with the teratogenic effects of FDG in addition to the radiation exposure during PET/CT. All patients of childbearing potential must have a blood test or urine study within 7 days prior to registration to rule out pregnancy.

* NOTE: A pregnancy test within 7 days prior to the T0 scan is also required but will only need to be done if a) the T0 scan is completed after study registration and b) if the pregnancy test done prior to registration is completed outside of the 7-day window.

A patient of childbearing potential is defined as anyone, regardless of sexual orientation or whether they have undergone tubal ligation, who meets the following criteria: 1) has achieved menarche at some point, 2) has not undergone a hysterectomy or bilateral oophorectomy; or 3) has not been naturally postmenopausal (amenorrhea following cancer therapy does not rule out childbearing potential) for at least 24 consecutive months (i.e., has had menses at any time in the preceding 24 consecutive months).

* Patient must not have any contraindication to FDG-PET/CT imaging which includes routine glucose values \> 200 mg/dL and severe claustrophobia.

NEAR YOU

Study locations worldwide

102 sites

Check the individual site’s status and contact the listed study team for current availability.

University of Alabama at Birmingham Cancer Center

Not reported

Birmingham, Alabama, 35233, United States

Contact details are not published in this record. Check official study record ↗

Cancer Center at Saint Joseph's

Not reported

Phoenix, Arizona, 85004, United States

Contact details are not published in this record. Check official study record ↗

Los Angeles General Medical Center

Not reported

Los Angeles, California, 90033, United States

Contact details are not published in this record. Check official study record ↗

USC / Norris Comprehensive Cancer Center

Not reported

Los Angeles, California, 90033, United States

Contact details are not published in this record. Check official study record ↗

Saint John's Cancer Institute

Not reported

Santa Monica, California, 90404, United States

Contact details are not published in this record. Check official study record ↗

Sibley Memorial Hospital

Not reported

Washington D.C., District of Columbia, 20016, United States

Contact details are not published in this record. Check official study record ↗

Mayo Clinic in Florida

Not reported

Jacksonville, Florida, 32224-9980, United States

Contact details are not published in this record. Check official study record ↗

Hawaii Cancer Care Inc - Waterfront Plaza

Not reported

Honolulu, Hawaii, 96813, United States

Contact details are not published in this record. Check official study record ↗

Queen's Cancer Cenrer - POB I

Not reported

Honolulu, Hawaii, 96813, United States

Contact details are not published in this record. Check official study record ↗

University of Hawaii Cancer Center

Not reported

Honolulu, Hawaii, 96813, United States

Contact details are not published in this record. Check official study record ↗

Queen's Cancer Center - Kuakini

Not reported

Honolulu, Hawaii, 96817, United States

Contact details are not published in this record. Check official study record ↗

Kapiolani Medical Center for Women and Children

Not reported

Honolulu, Hawaii, 96826, United States

Contact details are not published in this record. Check official study record ↗

Wilcox Memorial Hospital and Kauai Medical Clinic

Not reported

Lihue, Hawaii, 96766, United States

Contact details are not published in this record. Check official study record ↗

Hawaii Cancer Care - Westridge

Not reported

‘Aiea, Hawaii, 96701, United States

Contact details are not published in this record. Check official study record ↗

Saint Luke's Cancer Institute - Twin Falls

Not reported

Twin Falls, Idaho, 83301, United States

Contact details are not published in this record. Check official study record ↗

Northwestern University

Not reported

Chicago, Illinois, 60611, United States

Contact details are not published in this record. Check official study record ↗

Carle at The Riverfront

Not reported

Danville, Illinois, 61832, United States

Contact details are not published in this record. Check official study record ↗

Northwestern Medicine Cancer Center Kishwaukee

Not reported

DeKalb, Illinois, 60115, United States

Contact details are not published in this record. Check official study record ↗

Carle Physician Group-Effingham

Not reported

Effingham, Illinois, 62401, United States

Contact details are not published in this record. Check official study record ↗

Northwestern Medicine Cancer Center Delnor

Not reported

Geneva, Illinois, 60134, United States

Contact details are not published in this record. Check official study record ↗

Northwestern Medicine Lake Forest Hospital

Not reported

Lake Forest, Illinois, 60045, United States

Contact details are not published in this record. Check official study record ↗

Carle Physician Group-Mattoon/Charleston

Not reported

Mattoon, Illinois, 61938, United States

Contact details are not published in this record. Check official study record ↗

Northwestern Medicine Cancer Center Warrenville

Not reported

Warrenville, Illinois, 60555, United States

Contact details are not published in this record. Check official study record ↗

The James Graham Brown Cancer Center at University of Louisville

Not reported

Louisville, Kentucky, 40202, United States

Contact details are not published in this record. Check official study record ↗

Louisiana State University Health Science Center

Not reported

New Orleans, Louisiana, 70112, United States

Contact details are not published in this record. Check official study record ↗

University Medical Center New Orleans

Not reported

New Orleans, Louisiana, 70112, United States

Contact details are not published in this record. Check official study record ↗

Johns Hopkins University/Sidney Kimmel Cancer Center

Not reported

Baltimore, Maryland, 21287, United States

Contact details are not published in this record. Check official study record ↗

Dana-Farber Cancer Institute

Not reported

Boston, Massachusetts, 02215, United States

Contact details are not published in this record. Check official study record ↗

Wayne State University/Karmanos Cancer Institute

Not reported

Detroit, Michigan, 48201, United States

Contact details are not published in this record. Check official study record ↗

Minnesota Oncology - Burnsville

Not reported

Burnsville, Minnesota, 55337, United States

Contact details are not published in this record. Check official study record ↗

Minnesota Oncology Hematology PA-Maplewood

Not reported

Maplewood, Minnesota, 55109, United States

Contact details are not published in this record. Check official study record ↗

Abbott-Northwestern Hospital

Not reported

Minneapolis, Minnesota, 55407, United States

Contact details are not published in this record. Check official study record ↗

Mayo Clinic in Rochester

Not reported

Rochester, Minnesota, 55905, United States

Contact details are not published in this record. Check official study record ↗

Park Nicollet Clinic - Saint Louis Park

Not reported

Saint Louis Park, Minnesota, 55416, United States

Contact details are not published in this record. Check official study record ↗

Minnesota Oncology Hematology PA-Woodbury

Not reported

Woodbury, Minnesota, 55125, United States

Contact details are not published in this record. Check official study record ↗

Baptist Memorial Hospital and Cancer Center-Oxford

Not reported

Oxford, Mississippi, 38655, United States

Contact details are not published in this record. Check official study record ↗

Baptist Memorial Hospital and Cancer Center-Desoto

Not reported

Southhaven, Mississippi, 38671, United States

Contact details are not published in this record. Check official study record ↗

CoxHealth South Hospital

Not reported

Springfield, Missouri, 65807, United States

Contact details are not published in this record. Check official study record ↗

Nebraska Medicine-Bellevue

Not reported

Bellevue, Nebraska, 68123, United States

Contact details are not published in this record. Check official study record ↗

Nebraska Medicine-Village Pointe

Not reported

Omaha, Nebraska, 68118, United States

Contact details are not published in this record. Check official study record ↗

University of Nebraska Medical Center

Not reported

Omaha, Nebraska, 68198, United States

Contact details are not published in this record. Check official study record ↗

Cooper Hospital University Medical Center

Not reported

Camden, New Jersey, 08103, United States

Contact details are not published in this record. Check official study record ↗

Morristown Medical Center

Not reported

Morristown, New Jersey, 07960, United States

Contact details are not published in this record. Check official study record ↗

Inspira Medical Center Mullica Hill

Not reported

Mullica Hill, New Jersey, 08062, United States

Contact details are not published in this record. Check official study record ↗

Saint Joseph's Regional Medical Center

Not reported

Paterson, New Jersey, 07503, United States

Contact details are not published in this record. Check official study record ↗

Inspira Medical Center Vineland

Not reported

Vineland, New Jersey, 08360, United States

Contact details are not published in this record. Check official study record ↗

MD Anderson Cancer Center at Cooper-Voorhees

Not reported

Voorhees Township, New Jersey, 08043, United States

Contact details are not published in this record. Check official study record ↗

Roswell Park Cancer Institute

Not reported

Buffalo, New York, 14263, United States

Contact details are not published in this record. Check official study record ↗

Montefiore Medical Center-Einstein Campus

Not reported

The Bronx, New York, 10461, United States

Contact details are not published in this record. Check official study record ↗

UNC Lineberger Comprehensive Cancer Center

Not reported

Chapel Hill, North Carolina, 27599, United States

Contact details are not published in this record. Check official study record ↗

Indu and Raj Soin Medical Center

Not reported

Beavercreek, Ohio, 45431, United States

Contact details are not published in this record. Check official study record ↗

MetroHealth Medical Center

Not reported

Cleveland, Ohio, 44109, United States

Contact details are not published in this record. Check official study record ↗

Ohio State University Comprehensive Cancer Center

Not reported

Columbus, Ohio, 43210, United States

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University of Oklahoma Health Sciences Center

Not reported

Oklahoma City, Oklahoma, 73104, United States

Contact details are not published in this record. Check official study record ↗

Bryn Mawr Hospital

Not reported

Bryn Mawr, Pennsylvania, 19010, United States

Contact details are not published in this record. Check official study record ↗

Geisinger Medical Center

Not reported

Danville, Pennsylvania, 17822, United States

Contact details are not published in this record. Check official study record ↗

Riddle Memorial Hospital

Not reported

Media, Pennsylvania, 19063, United States

Contact details are not published in this record. Check official study record ↗

Bryn Mawr Health Center

Not reported

Newtown Square, Pennsylvania, 19073, United States

Contact details are not published in this record. Check official study record ↗

Paoli Memorial Hospital

Not reported

Paoli, Pennsylvania, 19301, United States

Contact details are not published in this record. Check official study record ↗

Guthrie Medical Group PC-Robert Packer Hospital

Not reported

Sayre, Pennsylvania, 18840, United States

Contact details are not published in this record. Check official study record ↗

Community Medical Center

Not reported

Scranton, Pennsylvania, 18510, United States

Contact details are not published in this record. Check official study record ↗

Chester County Hospital

Not reported

West Chester, Pennsylvania, 19380, United States

Contact details are not published in this record. Check official study record ↗

Geisinger Wyoming Valley/Henry Cancer Center

Not reported

Wilkes-Barre, Pennsylvania, 18711, United States

Contact details are not published in this record. Check official study record ↗

Lankenau Medical Center

Not reported

Wynnewood, Pennsylvania, 19096, United States

Contact details are not published in this record. Check official study record ↗

Baptist Memorial Hospital and Cancer Center-Collierville

Not reported

Collierville, Tennessee, 38017, United States

Contact details are not published in this record. Check official study record ↗

Baptist Memorial Hospital and Cancer Center-Memphis

Not reported

Memphis, Tennessee, 38120, United States

Contact details are not published in this record. Check official study record ↗

Dell Seton Medical Center at The University of Texas

Not reported

Austin, Texas, 78701, United States

Contact details are not published in this record. Check official study record ↗

University of Texas at Austin

Not reported

Austin, Texas, 78712, United States

Contact details are not published in this record. Check official study record ↗

Huntsman Cancer Institute/University of Utah

Not reported

Salt Lake City, Utah, 84112, United States

Contact details are not published in this record. Check official study record ↗

Virginia Commonwealth University/Massey Cancer Center

Not reported

Richmond, Virginia, 23298, United States

Contact details are not published in this record. Check official study record ↗

FHCC South Lake Union

Not reported

Seattle, Washington, 98109, United States

Contact details are not published in this record. Check official study record ↗

Fred Hutchinson Cancer Center

Not reported

Seattle, Washington, 98109, United States

Contact details are not published in this record. Check official study record ↗

University of Washington Medical Center - Montlake

Not reported

Seattle, Washington, 98195, United States

Contact details are not published in this record. Check official study record ↗

Aurora Cancer Care-Southern Lakes VLCC

Not reported

Burlington, Wisconsin, 53105, United States

Contact details are not published in this record. Check official study record ↗

Marshfield Medical Center-EC Cancer Center

Not reported

Eau Claire, Wisconsin, 54701, United States

Contact details are not published in this record. Check official study record ↗

Aurora Health Care Germantown Health Center

Not reported

Germantown, Wisconsin, 53022, United States

Contact details are not published in this record. Check official study record ↗

Saint Vincent Hospital Cancer Center Green Bay

Not reported

Green Bay, Wisconsin, 54301, United States

Contact details are not published in this record. Check official study record ↗

Saint Vincent Hospital Cancer Center at Saint Mary's

Not reported

Green Bay, Wisconsin, 54303, United States

Contact details are not published in this record. Check official study record ↗

Marshfield Medical Center - Ladysmith

Not reported

Ladysmith, Wisconsin, 54848, United States

Contact details are not published in this record. Check official study record ↗

University of Wisconsin Carbone Cancer Center - University Hospital

Not reported

Madison, Wisconsin, 53792, United States

Contact details are not published in this record. Check official study record ↗

Marshfield Medical Center-Marshfield

Not reported

Marshfield, Wisconsin, 54449, United States

Contact details are not published in this record. Check official study record ↗

Aurora Saint Luke's Medical Center

Not reported

Milwaukee, Wisconsin, 53215, United States

Contact details are not published in this record. Check official study record ↗

Aurora Sinai Medical Center

Not reported

Milwaukee, Wisconsin, 53233, United States

Contact details are not published in this record. Check official study record ↗

Marshfield Clinic-Minocqua Center

Not reported

Minocqua, Wisconsin, 54548, United States

Contact details are not published in this record. Check official study record ↗

Marshfield Medical Center - Neillsville

Not reported

Neillsville, Wisconsin, 54456, United States

Contact details are not published in this record. Check official study record ↗

Marshfield Medical Center-Rice Lake

Not reported

Rice Lake, Wisconsin, 54868, United States

Contact details are not published in this record. Check official study record ↗

Marshfield Medical Center-River Region at Stevens Point

Not reported

Stevens Point, Wisconsin, 54482, United States

Contact details are not published in this record. Check official study record ↗

Aurora West Allis Medical Center

Not reported

West Allis, Wisconsin, 53227, United States

Contact details are not published in this record. Check official study record ↗

Marshfield Medical Center - Weston

Not reported

Weston, Wisconsin, 54476, United States

Contact details are not published in this record. Check official study record ↗

Marshfield Clinic - Wisconsin Rapids Center

Not reported

Wisconsin Rapids, Wisconsin, 54494, United States

Contact details are not published in this record. Check official study record ↗

Cancer Center-Metro Medical Center Bayamon

Not reported

Bayamón, 00959-5060, Puerto Rico

Contact details are not published in this record. Check official study record ↗

Centro Comprensivo de Cancer de UPR

Not reported

San Juan, 00927, Puerto Rico

Contact details are not published in this record. Check official study record ↗

WHAT IS BEING STUDIED

Treatments and study groups

Interventions

ChemotherapyDrug
Receive standard of care chemotherapy

Study groups: Diagnostic (FDG-PET/CT scan)

Other names: Chemo, Chemotherapy (NOS), Chemotherapy, Cancer, General

Computed TomographyProcedure
Undergo PET/CT

Study groups: Diagnostic (FDG-PET/CT scan)

Other names: CAT, CAT Scan, Computed Axial Tomography, Computerized Axial Tomography, Computerized Tomography, CT, CT Scan, tomography

Fludeoxyglucose F-18Other
Given IV

Study groups: Diagnostic (FDG-PET/CT scan)

Other names: 18FDG, FDG, Fludeoxyglucose (18F), fludeoxyglucose F 18, Fludeoxyglucose F18, Fluorine-18 2-Fluoro-2-deoxy-D-Glucose, Fluorodeoxyglucose F18

Positron Emission TomographyProcedure
Undergo PET/CT

Study groups: Diagnostic (FDG-PET/CT scan)

Other names: Medical Imaging, Positron Emission Tomography, PET, PET Scan, Positron Emission Tomography Scan, Positron-Emission Tomography, proton magnetic resonance spectroscopic imaging, PT

Surgical ProcedureProcedure
Undergo standard of care surgery

Study groups: Diagnostic (FDG-PET/CT scan)

Other names: Operation, Surgery, Surgery Type, Surgical, Surgical Intervention, Surgical Interventions, Surgical Procedures, Type of Surgery

Study groups

Diagnostic (FDG-PET/CT scan)Experimental
Patients receive FDG IV, undergo PET/CT, receive standard of care chemotherapy, and undergo standard of care surgery on study.

Interventions: Drug: Chemotherapy, Procedure: Computed Tomography, Other: Fludeoxyglucose F-18, Procedure: Positron Emission Tomography, Procedure: Surgical Procedure

RESEARCH DETAILS

Study design

Study type
Interventional
Phase
Phase 2
Primary purpose
Diagnostic
Allocation
Not applicable
Study model
Single group
Masking
None (open label)
Enrolment
235 participants · Estimated

TIMELINE & MEASURES

Dates and outcomes

Study started
10 May 2023 · Actual
Primary completion
31 May 2027 · Estimated
Study completion
31 Dec 2029 · Estimated
First registered
2 Feb 2023 · Actual
Last registry update
19 Oct 2026 · Actual
Status last verified
Oct 2026
Primary outcomes (1)

Negative predictive value of neoadjuvant interim (ni) fludeoxyglucose F-18 (FDG) positron emission tomography/computed tomography (PET/CT) for pathologic complete response (pCR)

The analysis set for this objective will comprise all patients who enrolled in the study and had a FDG-PET/CT scan at T0 and T1 timepoint. The negative predictive value is defined as the probability that pCR will not be achieved by study participants who experience a using delta maximum standardized uptake value corrected for lean body mass day 15 (deltaSULmaxD15) below 40% and will be estimated via an exact, two-sided 95% confidence interval.

Time frame: Up to 5 years

Secondary outcomes (4)

Sensitivity of niFDG-PET/CT for pCR

The analysis set for this objective will be the same as for the primary objective. The estimation approach will also be similar.

Time frame: Up to 5 years

Specificity of niFDG-PET/CT for pCR

The analysis set for this objective will be the same as for the primary objective. The estimation approach will also be similar.

Time frame: Up to 5 years

Positive predictive value of niFDG-PET/CT for pCR

The analysis set for this objective will be the same as for the primary objective. The estimation approach will also be similar.

Time frame: Up to 5 years

Performance of niFDG-PET/CT as predictor of 3-year event-free survival

Using deltaSULmaxD15 of the primary breast cancer at a threshold of 40%. The analysis set for this objective will be the same as for the primary objective. The analysis will compare estimates of 3-year event-free survival between participants with deltaSULmaxD15 above and below the 40% threshold using a log-rank test.

Time frame: Up to 5 years

Other outcomes (2)

Negative predictive value of niFDG-PET/CT for pCR

The analytic approach for this objective will parallel the approach for the primary aim for each of selected thresholds in the range from 30% to 60%.

Time frame: Up to 5 years

Compare deltaSULmaxD15 using automated image analysis of FDG-PET/CT by AutoPERCIST (trademark) to standard PET analysis software

The analytic approach for this aim will include an assessment of agreement between measures of deltaSULmaxD15 obtained from two methods and an assessment of the negative and positive predictive value of the deltaSULmaxD15 measurement by AutoPERCIST (trademark).

Time frame: Up to 5 years

STUDY TEAM

Sponsor and contacts

Lead sponsor
ECOG-ACRIN Cancer Research Group
Sponsor type
Network
Collaborators
Not reported
Organisation study ID
EA1211

Central study contacts

No central contact is currently reported. Check the site contacts or the official record.

Study officials
Heather JacenePrincipal investigator · ECOG-ACRIN Cancer Research Group

Contacts are provided by the registry for study enquiries. Do not use these details for marketing or promotions.

FURTHER READING

Results, documents and references

No results are posted in this registry record

This does not mean the study has no findings. Results may not yet have been submitted or published here.

No study documents are listed in this record.

Publications (1)
  1. Hennessy MA, Gatsonis C, Jacene H, Connolly RM, Burnette BL, Stringer-Reasor EM, Romanoff J, Taurone A, O'Sullivan CC, Le-Petross HT, Stearns V, Fowler AM, Tang SC, Sepulveda KA, DeMichele AM, Mankoff DA, Wolff AC. EA1211: interim FDG-PET/CT for predicting response of HER2-positive breast cancer to neoadjuvant therapy (DIRECT trial). Future Oncol. 2025 Nov;21(26):3377-3384. doi: 10.1080/14796694.2025.2567840. Epub 2025 Oct 5. PubMed ↗

Source: ClinicalTrials.gov · Data fetched 20 Oct 2026, 16:40 GMT+0530

Registry data timestamp: 2026-10-19T09:00:04

Registry content is reformatted for readability; original study text is not rewritten. Missing information is labelled “Not reported”. Records are supplied by study sponsors or investigators and can change.

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