Neoplasms

Skin and Connective Tissue Diseases

All Conditions

Breast Neoplasms

Breast Diseases

Skin Diseases

Antineoplastic Agents

All Drugs and Chemicals

Antirheumatic Agents

Anti-Infective Agents

Pembrolizumab

Paclitaxel

Albumin-Bound Paclitaxel

Cyclophosphamide

Doxorubicin

Liposomal doxorubicin

Estrogens

Epirubicin

Mitogens

Tubulin Modulators

Antimitotic Agents

Immunosuppressive Agents

Immunologic Factors

Antineoplastic Agents, Alkylating

Alkylating Agents

Antineoplastic Agents, Immunological

Immune Checkpoint Inhibitors

Anti-Bacterial Agents

Antibiotics, Antitubercular

Enzyme Inhibitors

In the neoadjuvant setting, participants receive pembrolizumab (K) 200 mg via intravenous (IV) infusion once every 3 weeks (Q3W) + paclitaxel (X) 80 mg/m\^2 via IV infusion once weekly (QW) for 4 cycles (Treatment 1), followed by pembrolizumab 200 mg via IV infusion + doxorubicin or epirubicin (A or E; 60 mg/m\^2 or 100 mg/m\^2) via IV infusion either in Q2W or Q3W + cyclophosphamide (C) 600 mg/m\^2 via IV infusion either in Q2W or Q3W for 4 cycles (Treatment 2). At no more than 6 weeks after last cycle of neoadjuvant treatment, participants will undergo surgery for their breast cancer. After surgery, participants will begin adjuvant study treatment. In the adjuvant setting, participants receive pembrolizumab 200 mg via IV infusion Q3W for 9 cycles + variable endocrine therapy for up to 10 years. Each cycle is 21 days long.

In the neoadjuvant setting, participants receive placebo (P; normal saline or dextrose) via IV infusion Q3W + paclitaxel (X) 80 mg/m\^2 via IV infusion once weekly (QW) for 4 cycles (Treatment 1), followed by placebo via IV infusion + doxorubicin or epirubicin (A or E; 60 mg/m\^2 or 100 mg/m\^2) via IV infusion either in Q2W or Q3W + cyclophosphamide (C) 600 mg/m\^2 via IV infusion either in Q2W or Q3W for 4 cycles (Treatment 2). At no more than 6 weeks after last cycle of neoadjuvant treatment, participants will undergo surgery for their breast cancer. After surgery, participants will begin adjuvant study treatment. In the adjuvant setting, participants receive placebo via IV infusion Q3W for 9 cycles + variable endocrine therapy for up to 10 years. Each cycle is 21 days long.

Pembrolizumab (K)

Normal saline or dextrose IV infusion Q3W

Placebo (P)

Paclitaxel (X)

Doxorubicin (A)

Epirubicin (E)

Cyclophosphamide (C)

Variable endocrine therapy for up 10 years

Endocrine therapy

Variable radiation therapy per local standard of care

Radiation therapy

Surgery

Medical Director

The purpose of this study is to assess the efficacy and safety of pembrolizumab (MK-3475) versus placebo in combination with neoadjuvant (pre-surgery) chemotherapy and adjuvant (post-surgery) endocrine therapy in the treatment of adults who have high-risk early-stage estrogen receptor-positive, human epidermal growth factor receptor 2-negative (ER+/HER2-) breast cancer.

The primary study hypotheses are: 1) pembrolizumab is superior to placebo, both in combination with the protocol-specified neoadjuvant anticancer therapy, as assessed by pathological Complete Response (pCR) rate defined by the local pathologist, and 2) pembrolizumab is superior to placebo (both in combination with the protocol-specified neoadjuvant and adjuvant anticancer therapies) as assessed by Event-Free Survival (EFS) as determined by the investigator. The study is considered to have met its primary objective if pembrolizumab is superior to placebo with respect to either pCR (ypT0/Tis ypN0) or EFS.

Study participants will receive 8 cycles of neoadjuvant study treatment and then will undergo surgery for their breast cancer. After surgery, participants will receive 9 cycles of study treatment and up to 10 years of variable endocrine therapy. Each cycle is 21 days long.

Study of Pembrolizumab (MK-3475) Versus Placebo in Combination With Neoadjuvant Chemotherapy & Adjuvant Endocrine Therapy in the Treatment of Early-Stage Estrogen Receptor-Positive, Human Epidermal Growth Factor Receptor 2-Negative (ER+/HER2-) Breast Cancer (MK-3475-756/KEYNOTE-756)

A Randomized, Double-Blind, Phase III Study of Pembrolizumab Versus Placebo in Combination With Neoadjuvant Chemotherapy and Adjuvant Endocrine Therapy for the Treatment of High-Risk Early-Stage Estrogen Receptor-Positive, Human Epidermal Growth Factor Receptor 2-Negative (ER+/HER2-) Breast Cancer (KEYNOTE-756)

http://engagezone.msd.com/doc/ProcedureAccessClinicalTrialData.pdf

The pCR rate (ypT0/Tis ypN0) is defined as the percentage of participants without residual invasive cancer on hematoxylin and eosin evaluation of the complete resected breast specimen and all sampled regional lymph nodes following completion of neoadjuvant systemic therapy by American Joint Committee on Cancer (AJCC) staging criteria (8th edition) assessed by the local pathologist at the time of surgery. The percentage of participants with a pathological Complete Response (pCR) using the definition of (ypT0/Tis ypN0) will be presented for pembrolizumab versus placebo, both in combination with the protocol-specified neoadjuvant anticancer therapies.

EFS is defined as the time from randomization to disease progression that: precludes surgery, results in a local or distant recurrence, results in a second primary malignancy, or death due to any cause whichever occurs first. The EFS following administration of pembrolizumab and placebo, both in combination with the protocol-specified neoadjuvant and adjuvant anticancer therapies, as determined by the investigator will be presented.

OS is defined as the time from date of randomization to date of death due to any cause. The OS following administration of pembrolizumab and placebo, both in combination with the protocol-specified neoadjuvant and adjuvant anticancer therapies will be presented.

pCR rate (ypT0ypN0) is defined as the percentage of participants without residual invasive or in situ cancer on hematoxylin and eosin evaluation of the complete resected breast specimen and all sampled regional lymph nodes after completion of neoadjuvant systemic therapy by AJCC staging criteria (8th edition) assessed by the local pathologist at the time of surgery. The percentage of participants with a pCR using the definition of (ypT0ypN0) will be presented for pembrolizumab versus placebo, both in combination with the protocol-specified neoadjuvant anticancer therapies.

pCR rate (ypT0/Tis) is defined as the percentage of participants without residual invasive cancer on hematoxylin and eosin evaluation of the complete resected breast specimen (independent of lymph node involvement) after completion of neoadjuvant systemic therapy by AJCC staging criteria (8th edition) assessed by the local pathologist at the time of surgery. The percentage of participants with a pCR using the definition of ypT0/Tis will be presented for pembrolizumab versus placebo, both in combination with the protocol-specified neoadjuvant anticancer therapies.

pCR rates were calculated using the definitions of ypT0/Tis ypN0, ypT0/Tis, and ypT0 ypN0 after completion of neoadjuvant systemic therapy by AJCC staging criteria (8th edition) assessed by the local pathologist at the time of surgery. The percentage of participants with a pCR using the three definitions of ypT0/Tis ypN0, ypT0/Tis, and ypT0 ypN0 in participants with a CPS ≥1 (with a positive Programmed Cell Death-Ligand 1 \[PD-L1\] tumor status) will be presented for pembrolizumab versus placebo, both in combination with the protocol-specified neoadjuvant anticancer therapies.

EFS is defined as the time from randomization to disease progression that: precludes surgery, results in a local or distant recurrence, results in a second primary malignancy, or death due to any cause whichever occurs first. The EFS following administration of pembrolizumab and placebo, both in combination with the protocol-specified neoadjuvant and adjuvant anticancer therapies, as determined by the investigator for participants with a CPS ≥1 will be presented.

OS is defined as the time from date of randomization to date of death due to any cause. The OS following administration of pembrolizumab and placebo, both in combination with the protocol-specified neoadjuvant and adjuvant anticancer therapies for participants with a CPS ≥1 will be presented.

An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The number of participants who experience an AE while receiving pembrolizumab or placebo (including 1 month of safety follow up) will be presented.

An SAE is defined as any untoward medical occurrence that, at any dose: Results in death, Is life-threatening, Requires inpatient hospitalization or prolongation of existing hospitalization, Results in persistent or significant disability/incapacity or Is a congenital anomaly/birth defect. The number of participants who experience an SAE while receiving pembrolizumab or placebo (including 3 months of safety follow up) will be presented.

Some AEs that may occur in this study that are known to be related to pembrolizumab immunotherapy treatment and may include: pneumonitis, diarrhea/colitis, aspartate aminotransferase/alanine aminotransferase (AST/ALT) elevation or increased bilirubin, Type 1 diabetes mellitus or hyperglycemia, hypophysitis, hyperthyroidism, hypothyroidism, nephritis and renal dysfunction, and myocarditis. The number of participants who experience an irAE while receiving pembrolizumab or placebo (including 1 month of safety follow up) will be presented.

An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The number of participants who discontinue study treatment (pembrolizumab or placebo) due to an AE will be presented.

The EORTC QLQ-C30 is a 30-item questionnaire developed to assess the quality of life of cancer patients. Individual responses for each of 28 items are given on a 4-point scale (1=Not at All to 4=Very Much), with a lower score indicating a better outcome, and responses for each of 2 items (overall health and overall quality of life) are given on a 7-point scale (1=Very poor to 7=Excellent), with a higher score indicating a better outcome. The change from Baseline to end of treatment (up to Cycle 4 Day 1) in EORTC-QLQ-C30 scores for participants will be presented.

The EORTC QLQ-BR23 is a 23-item questionnaire developed to assess the quality of life in women with breast cancer. Responses for each item are given on a 4-point scale (1=Not at All to 4=Very Much), with a lower score indicating a better outcome. The change from Baseline to end of treatment (up to Cycle 4 Day 1) in EORTC QLQ-BR23 score for participants will be presented.

Merck Sharp & Dohme LLC

Docetaxel

Trastuzumab

Pertuzumab

Carboplatin

pegylated liposomal doxorubicin (PLD) 30 mg/m\^2, i.v., d1 + cyclophosphamide (C) 600 mg/m\^2, i.v., d1 + trastuzumab (H) 8 mg/kg loading dose, 6 mg/kg maintenance doses, i.v., d1 + pertuzumab (P) 840 mg loading dose, 420 mg maintenance doses, i.v., d1 followed by docetaxel (T) 90\~100 mg/m\^2, i.v., d1 + trastuzumab (H) 6 mg/kg, i.v., d1 + pertuzumab (P) 420 mg, i.v., d1 q3w, for 4 cycles. After neoadjuvant therapy, patients are required to receive a total of 1 year of treatment with trastuzumab (6mg/kg) combined with pertuzumab (420mg), i.v., d1, q3w, regardless of surgery.

docetaxel (T) 75 mg/m\^2, i.v., d1 + carboplatin (Cb) AUC 6, i.v., d1 + trastuzumab (H) 8 mg/kg loading dose, 6 mg/kg maintenance doses, i.v., d1 + pertuzumab (P) 840 mg loading dose, 420 mg maintenance doses, i.v., d1 q3w, for 6 cycles. After neoadjuvant therapy, patients are required to receive a total of 1 year of treatment with trastuzumab (6mg/kg) combined with pertuzumab (420mg), i.v., d1, q3w, regardless of surgery.

pegylated liposomal doxorubicin (PLD) 30 mg/m\^2, i.v., d1, q3w

pegylated liposomal doxorubicin (PLD)

cyclophosphamide (C) 600 mg/m\^2, i.v., d1, q3w

cyclophosphamide (C)

trastuzumab (H) 8 mg/kg loading dose, 6 mg/kg maintenance doses, i.v., d1, q3w

trastuzumab (H)

pertuzumab (P) 840 mg loading dose, 420 mg maintenance doses, i.v., d1, q3w

pertuzumab (P)

docetaxel (T) 90\~100 mg/m\^2, i.v., d1, q3w

docetaxel (T)

carboplatin (Cb)

Qiang Liu, PhD

This is a multicenter, open label, non-inferiority, randomized controlled clinical study.

The aim of this study is to evaluate the efficacy and safety of a pegylated liposomal doxorubicin + cyclophosphamide followed by docetaxel plus trastuzumab and pertuzumab (PLD + C + HP followed by THP) regimen compared with a docetaxel + carboplatin plus trastuzumab and pertuzumab (TCbHP) regimen in the neoadjuvant treatment of HER-2-positive breast cancer.

Neoadjuvant Treatment Pegylated Liposomal Doxorubicin Plus Cyclophosphamide Sequential Docetaxel Plus Trastuzumab and Pertuzumab Versus Docetaxel Plus Carboplatin Combined With Trastuzumab and Pertuzumab in HER-2 Positive Breast Cancer

A Multicentre, Open-label, Randomised Trial of Neoadjuvant Pegylated Liposomal Doxorubicin Plus Cyclophosphamide Sequential Docetaxel Plus Trastuzumab and Pertuzumab Versus Docetaxel Plus Carboplatin Combined With Trastuzumab and Pertuzumab in HER-2 Positive Breast Cancer

Subgroup analysis of pathological complete response (pCR) rates based on clinically relevant baseline characteristics

To explore the biomarkers and mechanisms related to neoadjuvant therapy using high-throughput sequencing technology (NGS), and to screen the patients who are suitable for anthracycline-containing neoadjuvant therapy

The percentage of participants without residual invasive cancer (ypT0/Tis ypN0 in the current AJCC staging system) when the complete resected breast specimen and all sampled regional lymph nodes were evaluated with hematoxylin and eosin staining after completion of systemic neoadjuvant therapy.

The number of participants who achieved complete response and partial response at the end of neoadjuvant chemotherapy as a percentage of the overall evaluable participants.

DFS is defined as the time from randomization to tumor recurrence or death from any cause. 5-year DFS rate is the percentage of participants with DFS from enrollment through 5 years.

Percentage of participants receiving breast-conserving surgery after neoadjuvant therapy.

Number of participants with treatment-related adverse events as assessed by NCI-CTCAE V5.0, including overall and Grade 3/4 adverse events.

Percentage of Participants with dose reductions of chemotherapy due to Grade 3/4 adverse events as assessed by NCI-CTCAE V5.0

Percentage of Participants with chemotherapy delay due to Grade 3/4 adverse events as assessed by NCI-CTCAE V5.0

RDI=actual dose intensity\* / standard dose intensity# actual dose intensity\* = drug standard dose (mg/m\^2) / weeks of administration per cycle (week) standard dose intensity# = actual standard dose (mg/m\^2) / actual dosing weeks (week)

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
Study of Pembrolizumab (MK-3475) Versus Placebo in Combination With Neoadjuvant Chemotherapy & Adjuvant Endocrine Therapy in the Treatment of Early-Stage Estrogen Receptor-Positive, Human Epidermal Growth Factor Receptor 2-Negative (ER+/HER2-) Breast Cancer (MK-3475-756/KEYNOTE-756)	NCT03725059	Breast Cancer	Pembrolizumab (... Placebo (P) Paclitaxel (X) Doxorubicin (A) Epirubicin (E) Cyclophosphamid... Endocrine thera... Radiation thera... Surgery	18 Years -	Merck Sharp & Dohme LLC
Neoadjuvant Treatment Pegylated Liposomal Doxorubicin Plus Cyclophosphamide Sequential Docetaxel Plus Trastuzumab and Pertuzumab Versus Docetaxel Plus Carboplatin Combined With Trastuzumab and Pertuzumab in HER-2 Positive Breast Cancer	NCT05159193	Breast Cancer	pegylated lipos... cyclophosphamid... trastuzumab (H) pertuzumab (P) docetaxel (T) docetaxel (T) carboplatin (Cb... trastuzumab (H) pertuzumab (P)	18 Years - 70 Years	Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University

Spots Global Cancer Trial Database for cyclophosphamide (c)