Biotech Stock Roundup: NTLA Surges on Study Data, EXEL & ALT Down on Updates & More

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It was a busy week for the volatile biotech sector with quite a few pipeline and regulatory updates. New drug approvals also continue to be in focus along with news related to vaccines for COVID-19.

Recap of the Week’s Most Important Stories:

Exelixis Down on Study Update: Shares of Exelixis, Inc. EXEL declined after it announced mixed data from the ongoing phase III study, COSMIC-312. The study is evaluating Cabometyx in combination with Tecentriq (atezolizumab) as compared to Nexavar (sorafenib) in patients with previously untreated advanced hepatocellular carcinoma (HCC), a type of liver cancer. Data from the study showed that it met only one of the primary endpoints, demonstrating significant improvement in progression-free survival (PFS) at the planned primary analysis.

However, a prespecified interim analysis for the second primary endpoint of overall survival (OS) did not reach statistical significance. Hence, based on these preliminary OS data, Exelixis anticipates the probability of reaching statistical significance at the time of the final analysis to be low. Nevertheless, the study will continue as planned to the final analysis of OS and results are expected in early 2022.

Moderna’s Vaccine Updates: Moderna, Inc. MRNA announced encouraging new results from in vitro neutralization studies of sera from individuals vaccinated with its COVID-19 vaccine. Data showed that vaccination with mRNA-1273 can produce neutralizing titers against all variants tested. These included additional versions of the beta variant (B.1.351, first identified in South Africa), three lineage variants of B.1.617 (first identified in India), including the kappa (B.1.617.1) and the delta variants (B.1.617.2); the eta variant; and the A.23.1 and A.VOI.V2 variants. Data from neutralization studies demonstrated that a modest reduction of 2.1-fold in neutralizing titers against the delta variant compared to the ancestral strain (D614G).

Concurrently, Moderna announced that the government of India has issued a registration certificate and permission to import its COVID-19 vaccine for restricted use in an emergency situation.

Regeneron/Sanofi’s Drug Approved in Europe: Regeneron REGN and partner Sanofi SNY announced that the European Commission (EC) has approved their PD-1 inhibitor, Libtayo (cemiplimab), for two additional indications. The EC approved Libtayo for the first-line treatment of adults with non-small cell lung cancer (NSCLC) whose tumor cells have ≥50% PD-L1 expression and no EGFR, ALK or ROS1 aberrations.

The patients targeted for this indication must have metastatic NSCLC or locally advanced NSCLC and not be a candidate for definitive chemoradiation. The EC also approved the drug for the treatment of adults with locally advanced or metastatic basal cell carcinoma (BCC) who have progressed on or are intolerant to a hedgehog pathway inhibitor (HHI). BCC is a common type of skin cancer.