• SKYSCRAPER-06 evaluating tiragolumab plus Tecentriq and chemotherapy did not meet the primary endpoints of progression-free survival at primary analysis and overall survival at first interim analysis
• The combination of tiragolumab plus Tecentriq and chemotherapy showed reduced efficacy compared to the comparator arm
• Safety was consistent with previous studies, however we intend to halt the trial due to reduced efficacy compared to the comparator arm

SOUTH SAN FRANCISCO, Calif. / Jul 04, 2024 / Business Wire / Genentech, a member of the Roche Group (SIX: RO, ROG; OTCQX: RHHBY), announced today that the Phase II/III SKYSCRAPER-06 study, evaluating tiragolumab plus Tecentriq^® (atezolizumab) and chemotherapy versus pembrolizumab and chemotherapy as an initial (first-line) treatment for people with previously untreated, locally advanced unresectable or metastatic non-squamous non-small cell lung cancer (nSq NSCLC), did not meet its primary endpoints of progression-free survival (PFS) at its primary analysis with a hazard ratio (HR) of 1.27 [95% CI: 1.02,1.57] and overall survival (OS) at its first interim analysis with a HR of 1.33 [95% CI: 1.02, 1.73], which was immature. The combination of tiragolumab plus Tecentriq and chemotherapy showed reduced efficacy in both PFS and OS compared to the comparator arm in the intent-to-treat population, which includes Phase II and Phase III cohorts. The overall safety profile remains consistent with the safety profile previously observed for the combination of tiragolumab plus Tecentriq and chemotherapy, and no new or unexpected findings were identified. Based on these results, patients and investigators will be unblinded and we intend to halt the study. A communication will be sent to the investigators and results will be shared with health authorities and subsequently presented at an upcoming medical meeting.

“These results are disappointing as it was our hope that this combination might yield improved outcomes for people living with metastatic non-squamous lung cancer,” said Levi Garraway, M.D., Ph.D., chief medical officer and head of Global Product Development. “We are thankful to all of the patients and healthcare professionals involved in the study, and we will leverage the learnings to inform our scientific understanding of the anti-TIGIT pathway and new avenues in cancer research.”

Ongoing Phase III studies are investigating treatment settings and indications distinct from SKYSCRAPER-06. Based on today’s results, we will evaluate any relevant changes needed to the ongoing tiragolumab program.

About SKYSCRAPER-06 study

SKYSCRAPER-06 is a global Phase II/III, randomized, placebo-controlled and double-blinded study evaluating tiragolumab plus Tecentriq^® (atezolizumab) and chemotherapy as an initial (first-line) treatment versus pembrolizumab and chemotherapy in 542 people with non-squamous non-small cell lung cancer. Primary endpoints are overall survival (OS) and progression-free survival (PFS).

About tiragolumab

Tiragolumab is an investigational novel immune checkpoint inhibitor with an intact Fc region. Tiragolumab selectively binds to TIGIT, a novel inhibitory immune checkpoint which suppresses the immune response to cancer. Based on preclinical research, tiragolumab is thought to work as an immune amplifier with other cancer immunotherapies such as Tecentriq^® (atezolizumab). The TIGIT pathway is distinct but complementary to the PD-L1/PD-1 pathway. Dual blockade with tiragolumab and Tecentriq may help overcome immune suppression and restore the immune response.

About Tecentriq^® (atezolizumab)

Tecentriq is a monoclonal antibody designed to bind with a protein called PD-L1. Tecentriq is designed to bind to PD-L1 expressed on tumor cells and tumor-infiltrating immune cells, blocking its interactions with both PD-1 and B7.1 receptors. By inhibiting PD-L1, Tecentriq may enable the re-activation of T cells. Tecentriq may also affect normal cells.

Tecentriq U.S. Indications

Tecentriq is a prescription medicine used to treat adults with:

Adults with a type of lung cancer called non-small cell lung cancer (NSCLC).

• Tecentriq may be used alone as a treatment for their lung cancer:
  • to help prevent their lung cancer from coming back after their tumor(s) has been removed by surgery and they have received platinum-based chemotherapy, and
  • they have stage 2 to 3A NSCLC (patients should talk to their healthcare provider about what these stages mean), and
  • their cancer tests positive for “PD-L1.”
• Tecentriq may be used alone as their first treatment when their lung cancer:
  • has spread or grown, and
  • their cancer tests positive for “high PD-L1,” and
  • their tumor does not have an abnormal “EGFR” or “ALK” gene.
• Tecentriq may be used with the medicines bevacizumab, paclitaxel, and carboplatin as their first treatment when their lung cancer:
  • has spread or grown, and
  • is a type called “non-squamous NSCLC,” and
  • their tumor does not have an abnormal “EGFR” or “ALK” gene.
• Tecentriq may be used with the medicines paclitaxel protein-bound and carboplatin as their first treatment when their lung cancer:
  • has spread or grown, and
  • is a type called “non-squamous NSCLC,” and
  • their tumor does not have an abnormal “EGFR” or “ALK” gene.
• Tecentriq may be used alone when their lung cancer:
  • has spread or grown, and
  • if they have tried chemotherapy that contains platinum, and it did not work or is no longer working.
  • if their tumor has an abnormal “EGFR” or “ALK” gene, they should have also tried an FDA-approved therapy for tumors with these abnormal genes, and it did not work or is no longer working.

It is not known if Tecentriq is safe and effective when used in children for the treatment of NSCLC.

Important Safety Information

What is the most important information about Tecentriq?

Tecentriq can cause the immune system to attack normal organs and tissues in any area of the body and can affect the way they work. These problems can sometimes become severe or life-threatening and can lead to death. Patients can have more than one of these problems at the same time. These problems may happen anytime during their treatment or even after their treatment has ended.

Patients should call or see their healthcare provider right away if they develop any new or worse signs or symptoms, including:

Lung problems

• cough
• shortness of breath
• chest pain

Intestinal problems

• diarrhea (loose stools) or more frequent bowel movements than usual
• stools that are black, tarry, sticky, or have blood or mucus
• severe stomach-area (abdomen) pain or tenderness

Liver problems

• yellowing of the skin or the whites of the eyes
• severe nausea or vomiting
• pain on the right side of their stomach area (abdomen)
• dark urine (tea colored)
• bleeding or bruising more easily than normal

Hormone gland problems

• headaches that will not go away or unusual headaches
• eye sensitivity to light
• eye problems
• rapid heartbeat
• increased sweating
• extreme tiredness
• weight gain or weight loss
• feeling more hungry or thirsty than usual
• urinating more often than usual
• hair loss
• feeling cold
• constipation
• their voice gets deeper
• dizziness or fainting
• changes in mood or behavior, such as decreased sex drive, irritability, or forgetfulness

Kidney problems

• decrease in their amount of urine
• blood in their urine
• swelling of their ankles
• loss of appetite

Skin problems

• rash
• itching
• skin blistering or peeling
• painful sores or ulcers in mouth or nose, throat, or genital area
• fever or flu-like symptoms
• swollen lymph nodes

Problems can also happen in other organs.

These are not all of the signs and symptoms of immune system problems that can happen with Tecentriq. Patients should call or see their healthcare provider right away for any new or worse signs or symptoms, including:

• Chest pain, irregular heartbeat, shortness of breath, or swelling of ankles
• Confusion, sleepiness, memory problems, changes in mood or behavior, stiff neck, balance problems, tingling or numbness of the arms or legs
• Double vision, blurry vision, sensitivity to light, eye pain, changes in eyesight
• Persistent or severe muscle pain or weakness, muscle cramps
• Low red blood cells, bruising

Infusion reactions that can sometimes be severe or life-threatening. Signs and symptoms of infusion reactions may include:

• chills or shaking
• itching or rash
• flushing
• shortness of breath or wheezing
• dizziness
• feeling like passing out
• fever
• back or neck pain

Complications, including graft-versus-host disease (GVHD), in people who have received a bone marrow (stem cell) transplant that uses donor stem cells (allogeneic). These complications can be serious and can lead to death. These complications may happen if patients undergo transplantation either before or after being treated with Tecentriq. A healthcare provider will monitor for these complications.

Getting medical treatment right away may help keep these problems from becoming more serious. A healthcare provider will check patients for these problems during their treatment with Tecentriq. A healthcare provider may treat patients with corticosteroid or hormone replacement medicines. A healthcare provider may also need to delay or completely stop treatment with Tecentriq if patients have severe side effects.

Before receiving Tecentriq, patients should tell their healthcare provider about all of their medical conditions, including if they:

• have immune system problems such as Crohn’s disease, ulcerative colitis, or lupus
• have received an organ transplant
• have received or plan to receive a stem cell transplant that uses donor stem cells (allogeneic)
• have received radiation treatment to their chest area
• have a condition that affects their nervous system, such as myasthenia gravis or Guillain-Barré syndrome
• are pregnant or plan to become pregnant. Tecentriq can harm an unborn baby. Patients should tell their healthcare provider right away if they become pregnant or think they may be pregnant during treatment with Tecentriq. Females who are able to become pregnant:
  • A healthcare provider should do a pregnancy test before they start treatment with Tecentriq
  • They should use an effective method of birth control during their treatment and for at least 5 months after the last dose of Tecentriq
• are breastfeeding or plan to breastfeed. It is not known if Tecentriq passes into the breast milk. Patients should not breastfeed during treatment and for at least 5 months after the last dose of Tecentriq.

Patients should tell their healthcare provider about all the medicines they take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

The most common side effects of Tecentriq when used alone include:

• feeling tired or weak
• decreased appetite
• nausea
• cough
• shortness of breath

The most common side effects of Tecentriq when used in lung cancer with other anti-cancer medicines include:

• feeling tired or weak
• nausea
• hair loss
• constipation
• diarrhea
• decreased appetite

Tecentriq may cause fertility problems in females, which may affect the ability to have children. Patients should talk to their healthcare provider if they have concerns about fertility.

These are not all the possible side effects of Tecentriq. Patients should ask their healthcare provider or pharmacist for more information about the benefits and side effects of Tecentriq.

Report side effects to the FDA at 1-800-FDA-1088 or http://www.fda.gov/medwatch. Report side effects to Genentech at 1-888-835-2555.

Please see http://www.Tecentriq.com for full Prescribing Information and additional Important Safety Information.

About Genentech

Founded more than 40 years ago, Genentech is a leading biotechnology company that discovers, develops, manufactures and commercializes medicines to treat patients with serious and life-threatening medical conditions. The company, a member of the Roche Group, has headquarters in South San Francisco, California. For additional information about the company, please visit http://www.gene.com.