Praha 10 - Strasnice, Czech Republic

A Clinical Study of Pembrolizumab (+) Berahyaluronidase Alfa (MK-3475A) to Treat Newly-diagnosed Metastatic Non-small Cell Lung Cancer (MK-3475A-F84)

Study of Opevesostat (MK-5684) Versus Alternative NHA in mCRPC (MK-5684-003)

Bomedemstat vs Hydroxyurea for Essential Thrombocythemia (MK-3543-007)

A Study to Compare Sacituzumab Tirumotecan (MK-2870) Monotherapy Versus Treatment of Physician's Choice as Second-line Treatment for Participants With Recurrent or Metastatic Cervical Cancer (MK-2870-020/TroFuse-020/Gog-3101/ENGOT-cx20)

Pembrolizumab With or Without Maintenance Sacituzumab Tirumotecan (Sac-TMT; MK-2870) in Metastatic Squamous Non-small Cell Lung Cancer (NSCLC) [MK-2870-023]

All participants undergo an initial induction phase of four cycles, each cycle consisting of pembrolizumab q3w + carboplatin q3w + paclitaxel q3w or nabpaclitaxel weekly. Participants are then randomly assigned to pembrolizumab maintenance vs. pembrolizumab + sac-TMT maintenance.

Sacituzumab Tirumotecan (MK-2870) Versus Pemetrexed and Carboplatin Combination Therapy in Participants With Epidermal Growth Factor (EGFR)-Mutated, Advanced Nonsquamous Non-small Cell Lung Cancer (NSCLC) Who Have Progressed on Prior EGFR Tyrosine Kinase Inhibitors (MK-2870-009)

Participants will be randomized 1:1 into two arms: - Sacituzumab tirumotecan - Pemetrexed plus Carboplatin Participants will receive treatment until any of the criteria for discontinuation of study intervention are met.

A Study of Bomedemstat (IMG-7289/MK-3543) Compared to Best Available Therapy (BAT) in Participants With Essential Thrombocythemia and an Inadequate Response or Intolerance of Hydroxyurea (MK-3543-006)

Trial of Two Adagrasib Dosing Regimens in NSCLC With KRAS G12C Mutation (KRYSTAL 21)

CA239-0012 is a phase 2 study of adagrasib monotherapy in which patients are randomized between two dosing regimens. The study will evaluate the efficacy of two dosing regimens of adagrasib (600 mg BID without regard to food versus 400 mg BID with food) in patients with NSCLC with KRAS G12C mutation and who have received prior treatment with a platinum-based regimen and immune checkpoint inhibitor therapy.

Study to Evaluate the Efficacy and Safety of K-877-ER and CSG452 in Participants With NASH With Liver Fibrosis

De-Escalation of Breast Radiation Trial for Hormone Sensitive, HER-2 Negative, Oncotype Recurrence Score Less Than or Equal to 18 Breast Cancer (DEBRA)

Breast conservation therapy for early stage breast cancer has been an important achievement of oncology practice in the last half century and breast radiotherapy (RT) has been essential in its development. Several seminal randomized clinical trials conducted in the 1980's era demonstrated that breast radiotherapy following lumpectomy yielded overall survival outcomes equivalent to mastectomy for treatment of early stage invasive breast cancer leading to the National Institute of Health (NIH) Consensus Conference statement in 1991 supporting breast conservation treatment.This established lumpectomy with RT as an alternative to mastectomy and subsequently the rate of breast conservation for eligible breast cancer patients rose steadily. Shortly thereafter, investigators recognized that the toxicity, patient burden, and geographic barriers associated with the protracted treatment course for breast RT was a potential barrier to breast conservation utilization. Numerous phase III clinical trials were conducted randomizing women post lumpectomy to RT vs. observation aimed at identifying which cases did not derive a significant RT benefit. No such subsets of breast cancer patients were consistently identified, thereby solidifying the standard that breast conservation required both lumpectomy and RT. Two meta-analyses by the Early Breast Cancer Trialists Collaborative Group (EBCTCG) in 2005 and 2011 further reinforced the value of breast RT post lumpectomy by examining the relationship of local recurrence and breast cancer mortality relative to the use of breast RT post lumpectomy. In each analysis, it found for axillary node negative breast cancer patients undergoing breast conservation a small but consistent increase in breast cancer mortality when breast radiotherapy was omitted. As a result, breast RT after lumpectomy has become an established paradigm for breast conservation for early stage breast cancer and is recommended by the NCCN 2018 guidelines (as it has for nearly two decades) that are commonly used today by clinicians and health systems alike. The landscape of early stage breast cancer has changed dramatically over the past three decades since the establishment of breast conservation. Widespread screening with mammography has led to the diagnosis of smaller and earlier stage disease. All breast cancers are now routinely characterized by their hormone sensitivity based on the presence of estrogen and progesterone receptors on tumor cells within the biopsy or surgical specimen and presence of HER2 (human epidermal growth factor receptor 2) which has provided an additional means of stratifying breast cancer into distinct prognostic groups. Small, node negative invasive breast cancer that is hormone sensitive (HS) and HER2-negative has a lower overall recurrence rate (local, regional, and distant) than breast cancers characterized by more adverse clinical pathologic features. However, other than in a smaller subset of women greater than 70 years old, clinical trials in this HS population still demonstrated unacceptable local recurrence risks long term after lumpectomy alone emphasizing that clinical and pathologic features are insufficient for consistently identifying when RT can safely be omitted.