Merck & Co Stock Price, News & Analysis

The HERTHENA-Lung02 phase 3 trial evaluating patritumab deruxtecan in patients with locally advanced or metastatic EGFR-mutated non-small cell lung cancer (NSCLC) who received prior EGFR tyrosine kinase inhibitor (TKI) treatment has met its primary endpoint. The trial demonstrated a statistically significant improvement in progression-free survival (PFS) compared to standard chemotherapy. This potential first-in-class HER3 directed antibody drug conjugate (ADC) is being jointly developed by Daiichi Sankyo and Merck (NYSE: MRK). The results highlight the potential of patritumab deruxtecan to become an important treatment option for this patient population with high unmet need. Data will be presented at an upcoming medical meeting and shared with global regulatory authorities.

Nuvectis Pharma's NXP900 is emerging as a promising candidate in the fight against Non-Small Cell Lung Cancer (NSCLC), particularly for patients resistant to EGFR and ALK targeted therapies. Like Summit Therapeutics' Ivonescimab, which recently outperformed Merck's Keytruda in a Phase 3 trial, NXP900 targets treatment resistance but through a different mechanism.

NXP900 inhibits SRC/YES1 kinases, key drivers of cancer survival. Preclinical studies show its potential to reverse resistance to existing therapies and enhance their effectiveness when used in combination. While still in early clinical development, NXP900's targeted approach and potential applications beyond NSCLC make it a noteworthy contender in the evolving landscape of cancer treatment.

Merck's KEYTRUDA (pembrolizumab) plus chemotherapy has shown significant promise in treating high-risk early-stage triple-negative breast cancer (TNBC). In the Phase 3 KEYNOTE-522 trial, this regimen reduced the risk of death by 34% compared to chemotherapy alone. After a median follow-up of 75.1 months, the five-year overall survival rate was 86.6% for the KEYTRUDA regimen versus 81.7% for the chemotherapy-placebo regimen.

Key points:

• First immunotherapy-based regimen to show significant improvement in overall survival for high-risk early-stage TNBC
• Consistent benefit across subgroups, including PD-L1 expression, tumor size, and nodal status
• Safety profile consistent with previous studies
• KEYTRUDA is approved in the U.S. for this indication based on earlier trial results

Merck's KEYTRUDA demonstrates sustained overall survival benefit in advanced melanoma patients after 10 years. Key findings from the KEYNOTE-006 trial include:

- 34.0% of KEYTRUDA-treated patients were alive at 10 years vs. 23.6% for ipilimumab

- KEYTRUDA reduced death risk by 29% (HR=0.71)

- Median overall survival: 32.7 months for KEYTRUDA vs. 15.9 months for ipilimumab

- Median modified progression-free survival: 9.4 months for KEYTRUDA vs. 3.8 months for ipilimumab

These results highlight KEYTRUDA's long-term efficacy in advanced melanoma treatment, showcasing its potential to improve patient outcomes significantly.

Merck (NYSE: MRK) and Eisai announced positive results from the Phase 3 LEAP-012 trial evaluating KEYTRUDA® (pembrolizumab) plus LENVIMA® (lenvatinib) in combination with transarterial chemoembolization (TACE) for treating unresectable, non-metastatic hepatocellular carcinoma (HCC). The study showed:

1. 34% reduction in the risk of disease progression or death compared to TACE alone
2. Median progression-free survival (PFS) of 14.6 months vs 10.0 months for TACE alone
3. Trend toward improved overall survival, though data not yet mature
4. Safety profile consistent with previous studies

The results, presented at ESMO Congress 2024, highlight the potential of this combination therapy to extend PFS in patients with unresectable, non-metastatic HCC.

Merck's KEYTRUDA (pembrolizumab) plus chemoradiotherapy (CRT) showed significant benefits in treating high-risk locally advanced cervical cancer. The Phase 3 KEYNOTE-A18 trial demonstrated:

- 33% reduction in death risk compared to CRT alone
- 36-month overall survival rate of 82.6% vs 74.8% for CRT alone
- First positive overall survival results for an immunotherapy-based regimen in this patient group

The study, presented at the ESMO Congress 2024, could potentially change the treatment paradigm for these patients. KEYTRUDA's safety profile was consistent with previous studies, with no new safety signals identified.

Merck (NYSE: MRK) announced significant overall survival (OS) results from the Phase 3 KEYNOTE-811 trial evaluating KEYTRUDA® (pembrolizumab) in combination with trastuzumab and chemotherapy for first-line treatment of HER2-positive advanced gastric or gastroesophageal junction (GEJ) adenocarcinoma. The KEYTRUDA regimen demonstrated:

- 20% reduction in risk of death (HR=0.80) compared to trastuzumab and chemotherapy alone
- Median OS of 20.0 months vs 16.8 months
- 21% reduction in risk of disease progression or death in patients with PD-L1 expressing tumors (CPS ≥1)
- Consistent safety profile with previous studies

These results support the existing accelerated approval in the U.S. and recent approval in the EU for this indication.

Merck (NYSE: MRK) announced that Joseph Romanelli, president of Human Health International, will participate in a fireside chat at the Bank of America 2024 Global Healthcare Conference. The event is scheduled for Wednesday, Sept. 18, 2024, at 6:40 a.m. EDT / 11:40 a.m. BST.

Investors, analysts, media members, and the general public are invited to listen to a live audio webcast of the presentation. Merck, known as MSD outside of the United States and Canada, has provided a weblink for interested parties to access the live stream.

This participation in a major healthcare conference highlights Merck's ongoing engagement with the investment community and its commitment to sharing insights about its international human health operations.

Merck (NYSE: MRK) has announced positive top-line results from its Phase 3 trial evaluating GARDASIL®9, its 9-valent Human Papillomavirus (HPV) vaccine, in Japanese males aged 16 to 26. The trial met its primary and secondary endpoints, demonstrating that a 3-dose regimen of GARDASIL 9 reduced the combined incidence of anogenital persistent infection caused by 9 types of HPV compared to placebo.

Dr. Eliav Barr, senior vice president at Merck Research Laboratories, emphasized the company's commitment to preventing HPV-related cancers through broad and equitable access globally. Merck plans to share these data with regulatory authorities in Japan and other countries to support licensure for use in males. Additionally, an ongoing confirmatory Phase 3 trial is evaluating the vaccine's efficacy in preventing HPV oral persistent infection to support effectiveness against HPV-related oropharyngeal and other head and neck cancers.