I-SPY TRIAL: Neoadjuvant and Personalized Adaptive Novel Agents to Treat Breast Cancer

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Standard Therapy

Paclitaxel: 80 mg/m2 IV during the 12 weekly treatment cycles post randomization; Doxorubicin: 60 mg/m2 IV after completion of the 12 weekly treatment cycles and prior to surgery for weeks 13-16; Cyclophosphamide: 600 mg/m2 IV after completion of the 12 weekly treatment cycles and prior to surgery for weeks 13-16

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AMG 386 with or without Trastuzumab

Arm is closed.

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AMG 479 (Ganitumab) plus Metformin

Arm is closed.

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MK-2206 with or without Trastuzumab

Arm is closed.

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AMG 386 and Trastuzumab

Arm is closed.

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T-DM1 and Pertuzumab

Arm is closed.

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Pertuzumab and Trastuzumab

Arm is closed for Accrual. Pertuzumab: 840 mg IV (loading dose) week 1 and 420 mg every 3 weeks (weeks 4, 7, 10) post-randomization; Trastuzumab: 4 mg/kg (loading dose) week 1 and 2 mg/kg weekly (weeks 2-12) post-randomization

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Ganetespib

Arm is closed.

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ABT-888

Arm is closed.

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Neratinib

Arm is closed.

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PLX3397

Arm is closed.

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Pembrolizumab - 4 cycle

Arm is closed.

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Talazoparib plus Irinotecan

Arm is closed.

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Patritumab and Trastuzumab

Arm is closed.

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Pembrolizumab - 8 cycle

Arm is closed.

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SGN-LIV1A

Arm is closed. SGN-LIV1A: 2.5 mg/kg IV cycles 1,4,7,10 Doxorubicin + Cyclophosphamide: Cycles 13-16

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Durvalumab plus Olaparib

Arm is closed.

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SD-101 + Pembrolizumab

Arm is closed. SD-101: IT injection 2 mg/ml (1 ml for T2 tumors, 2 ml for \>T3 tumors) weekly x 4, then every 3 weeks x 2 cycles 1,2,3,4,7,10 Pembrolizumab: 200mg IV cycles 1,4,7,10 Paclitaxel: 80 mg/m2 IV cycles 1-12 Doxorubicin + Cyclophosphamide: Cycles 13-16; Doxorubicin: 60 mg/m2 IV Every 2 or 3 weeks for 4 cycles; Cyclophosphamide: 600 mg/m2 IV Every 2 or 3 weeks for 4 cycles

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Tucatinib plus trastuzumab and pertuzumab

Arm is closed. Tucatinib: 300 mg PO BID 12 weeks CLOSED Tucatinib: 250 mg PO BID 12 weeks CLOSED Tucatinib adaptive: 150mg BID days 1-28, 250mg BID days 29-84 Trastuzumab: 4 mg/kg IV (loading dose) cycle 1; 2 mg/kg (thereafter) cycles 2-12 Pertuzumab: 840 mg IV (loading dose) cycle 1; 420 mg (thereafter) cycles 4, 7 and 10 Paclitaxel: 80 mg/m2 IV cycles 1-12 Doxorubicin + Cyclophosphamide: Cycles 13-16; Doxorubicin: 60 mg/m2 IV Every 2 or 3 weeks for 4 cycles; Cyclophosphamide: 600 mg/m2 IV Every 2 or 3 weeks for 4 cycles

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Cemiplimab

Cemiplimab: 350 mg q3w X 12 weeks IV cycles 1,4,7,10 Paclitaxel: 80 mg/m2 IV cycles 1-12 Doxorubicin + Cyclophosphamide: Cycles 13-16; Doxorubicin: 60 mg/m2 IV Every 2 or 3 weeks for 4 cycles; Cyclophosphamide: 600 mg/m2 IV Every 2 or 3 weeks for 4 cycles

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Cemiplimab plus REGN3767

Arm is closed. Cemiplimab: 350 mg q3w X 12 weeks IV cycles 1,4,7,10 REGN 3767: 1600 mg q3W X 12 weeks IV cycles 1,4,7,10 Paclitaxel: 80 mg/m2 IV cycles 1-12 Doxorubicin + Cyclophosphamide: Cycles 13-16; Doxorubicin: 60 mg/m2 IV Every 2 or 3 weeks for 4 cycles; Cyclophosphamide: 600 mg/m2 IV Every 2 or 3 weeks for 4 cycles

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Trilaciclib with or without trastuzumab + pertuzumab

Arm closed for accrual. Trilaciclib: 240 mg/m2 IV weekly cycle 1-16 Paclitaxel: 80 mg/m2 IV cycles 1-12 Doxorubicin + Cyclophosphamide: Cycles 13-16; Doxorubicin: 60 mg/m2 IV Every 2 or 3 weeks for 4 cycles; Cyclophosphamide: 600 mg/m2 IV Every 2 or 3 weeks for 4 cycles For HER2+: Pertuzumab: 840 mg IV (loading dose) week 1 and 420 mg every 3 weeks (weeks 4, 7, 10) post-randomization Trastuzumab: 4 mg/kg (loading dose) week 1 and 2 mg/kg weekly (weeks 2-12) post-randomization

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SYD985 ([vic-]trastuzumab duocarmazine)

Arm is closed. SYD985: 1.2 mg/kg IV (q3w x 12 weeks) cycles 1,4,7,10 Doxorubicin + Cyclophosphamide: Cycles 13-16; Doxorubicin: 60 mg/m2 IV Every 2 or 3 weeks for 4 cycles; Cyclophosphamide: 600 mg/m2 IV Every 2 or 3 weeks for 4 cycles

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Oral Paclitaxel + Encequidar + Dostarlimab (TSR-042) + Carboplatin with or without trastuzumab

Arm is closed. For HER2+ Dostarlimab (TSR-042), 500 mg, IV, q3wks for wk 1, 4, 7, 10 Trastuzumab, 4 mg/kg cycle 1, then 2 mg/kg cycles 2-12 q1wk, IV, for wk1-12 Oral paclitaxel, 205 mg/m2, oral, daily for Three (3) days in a row each week for weeks 1-12 Oral encequidar, 15 mg, oral, daily for Three (3) days in a row each week for weeks 1-12 Carboplatin, AUC 1.5, IV, q1wk from wk1-12 Followed by Doxorubicin: 60 mg/m2, IV, every 2 or 3 weeks for 4 cycles Cyclophosphamide: 600 mg/m2, IV, every 2 or 3 weeks for 4 cycle For HER2- Dostarlimab (TSR-042), 500 mg, IV, q3wks for wk 1, 4, 7, 10 Oral paclitaxel, 205 mg/m2, oral, daily for Three (3) days in a row each week for weeks 1-12 Oral encequidar, 15 mg, oral, daily for Three (3) days in a row each week for weeks 1-12 Carboplatin, AUC 1.5, IV, q1wk from wk1-12 Followed by Doxorubicin: 60 mg/m2, IV, every 2 or 3 weeks for 4 cycles Cyclophosphamide: 600 mg/m2, IV, every 2 or 3 weeks for 4 cycle

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Oral Paclitaxel + Encequidar + Dostarlimab (TSR-042) with or without trastuzumab

Arm is closed. For HER2+ Dostarlimab (TSR-042), 500 mg, IV, q3wks for wk 1, 4, 7, 10 Trastuzumab, 4 mg/kg cycle 1, then 2 mg/kg cycles 2-12 q1wk, IV, for wk1-12 Oral paclitaxel, 205 mg/m2, oral, daily for Three (3) days in a row each week for weeks 1-12 Oral encequidar, 15 mg, oral, daily for Three (3) days in a row each week for weeks 1-12 Followed by Doxorubicin: 60 mg/m2, IV, every 2 or 3 weeks for 4 cycles Cyclophosphamide: 600 mg/m2, IV, every 2 or 3 weeks for 4 cycle For HER2- Dostarlimab (TSR-042), 500 mg, IV, q3wks for wk 1, 4, 7, 10 Oral paclitaxel, 205 mg/m2, oral, daily for Three (3) days in a row each week for weeks 1-12 Oral encequidar, 15 mg, oral, daily for Three (3) days in a row each week for weeks 1-12 Followed by Doxorubicin: 60 mg/m2, IV, every 2 or 3 weeks for 4 cycles Cyclophosphamide: 600 mg/m2, IV, every 2 or 3 weeks for 4 cycle

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Amcenestrant

Arm is closed. Amcenestrant (SAR439859), 200mg QD, p.o., for 24 weeks.

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Amcenestrant + Abemaciclib

Arm is closed. Amcenestrant (SAR439859), 200mg QD, p.o., for 24 weeks Abemaciclib (Verzenio), 150mg BID, p.o., for 24 weeks

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Amcenestrant + Letrozole

Arm is closed. Amcenestrant (SAR439859), 200mg QD, p.o., for 24 weeks Letrozole (Femara), 2.5mg QD, p.o., for 24 weeks

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ARX788

Arm is closed. ARX788, 1.5 mg/kg Q3W, IV for 12 weeks

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ARX788 + Cemiplimab

Arm is closed. ARX788, 1.5 mg/kg Q3W, IV for 12 weeks Cemiplimab, 350 mg Q3W, IV for 12 weeks

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VV1 + Cemiplimab

Arm is closed. VV1, 3x10\^9 TCID50 once (day-8), Intra-tumoral injection Cemiplimab, 350 mg Q3W, IV for 12 weeks

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Datopotamab deruxtecan

Arm is closed. Dato-DXd, 6 mg/kg Q3W, IV for 12 weeks

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Datopotamab deruxtecan + Durvalumab

Arm is closed. Dato-DXd, 6 mg/kg Q3W, IV for 12 weeks Durvalumab, 1120 mg Q3W, IV for 12 weeks

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Zanidatamab

Zanidatamab: IV Infusion at a 2-tiered flat dose. 1,800mg (\<70 kg) and 2400mg (≥70 kg). Neoadjuvant doing of zanidatamab: The initial dose will be administered on Cycle 1 Day 1, with Cycle 2 Day 1 occurring 14 days thereafter, followed by subsequent dosing every 3 weeks (Q3W) for a total of up to 5 doses in block A, up to 4 doses Block B, up to 5 doses Block C. Adjuvant dosing of zanidatamab: Administered every 3 weeks (Q3W) for a total of 1 year of HER2 based therapy. The total number of adjuvant weeks will be dependent on the number of weeks of exposure of zanidatamab in Blocks A, B, and C.

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Lasofoxifene

Arm is closed. Lasofoxifene: 5.0 mg QD, p.o., for 24 weeks

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Z-endoxifen

Arm is closed. Z-endoxifen: 10 mg QD, p.o., for 24 weeks

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ARV-471

Arm is closed. ARV-471: 200 mg QD, p.o, for 24 weeks.

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ARV-471 + Letrozole

Arm is closed. ARV-471: 200 mg QD, p.o, for 24 weeks Letrozole: 2.5 mg QD, p.o, for 24 weeks

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ARV-471 + Abemaciclib

Arm is closed. ARV-471: 200 mg QD, p.o, for 24 weeks Abemaciclib: 150 mg BID, p.o, for 24 weeks

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Endoxifen + Abemaciclib

Z-endoxifen: 80 mg QD, p.o., for 24 weeks Abemaciclib: 150 mg BID, p.o, for 20 weeks

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Rilvegostomig + TDXd

Arm closed to accrual Rilvegostomig: 750mg IV Q3W for 12 weeks TDXd: 5.4 mg/kg IV Q3W for 12 weeks

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Dan222 + Niraparib

Arm is closed. DAN222: 8mg/m2 IV QW for 12 weeks Niraparib: 200mg QD p.p., 12 weeks

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Sarilumab + Cemiplimab + Paclitaxel

Arm is closed to accrual. Sarilumab: 200mg Subcutaneous injection Q2W for 12 weeks Cemiplimab: 350mg IV Q3W for 12 weeks Paclitaxel: 80 mg/m2 IV QW for 12 weeks

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GSK 5733584

Arm is open for accrual. Route: Intravenous infusion Dosage Form: 4.8 mg/kg intravenous Q3W for injection. Will receive a max of 12 weeks.

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GSK 5733584 + Dostarlimab

Arm is open for accrual. GSK 5733584 Route: Intravenous Infusion Dosage Form: 4.8 mg/kg intravenous Q3W for injection x 12 weeks max. Dostarlimab Route: Intravenous Infusion Dosage Form: 500 mg fixed dose intravenous Q3W for infusion x 12 weeks max.

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Ivonescimab (20mg/kg Q3W)

Strengths to be used in trial: 1. 20 mg/kg IV Q3W monotherapy 2. 20 mg/kg IV Q3W with paclitaxel 3. 20 mg/kg IV Q3W with carboplatin and paclitaxel. Standard Regimen: 20 mg/kg IV Q3W. Patients in Block A will receive a minimum of 6 weeks a maximum of 12 weeks of Ivonescimab monotherapy in Block A. Patients that have completed Block A, may receive ivonescimab plus paclitaxel or ivonescimab plus paclitaxel plus carboplatin in Block B (depending on subtype).

Determine whether adding experimental agents to standard neoadjuvant medications increases the probability of pathologic complete response (pCR) over standard neoadjuvant chemotherapy for each biomarker signature established at trial entry.

Time frame: Post surgery based on upto 36-week treatment

What is a clinical trial?

A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.

Is it safe to participate?

Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.

Will I be compensated?

Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.

Will I receive a placebo instead of treatment?

When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.

Can I leave a trial if I change my mind?

Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.

How long does a clinical trial last?

Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.