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1

Inavolisib and Phesgo for Advanced HER2 Positive Breast Cancer with a PIK3CA Mutation

A Phase III, Multicenter, Randomized, Double-Blind, Placebo-Controlled Study Evaluating the Efficacy and Safety of Inavolisib in Combination With Phesgo Versus Placebo in Combination With Phesgo As Maintenance Therapy After First Line Induction Therapy in Participants With PIK3CA-Mutated HER2-Positive Locally Advanced or Metastatic Breast Cancer...

Purpose: To study the safety, effects (good and bad), and anti-cancer activity of inavolisib, an experimental PI3K inhibitor, with Phesgo anti-HER2 targeted therapy.

Who is this for?: People with advanced (some stage III) or metastatic (stage IV) HER2 positive (HER2+) breast cancer with a PIK3CA mutation who have not received treatment for advanced disease (except for hormone therapy if HR+). View full eligibility criteria

What's involved?

<p class="seamTextPara"> You will be randomly assigned to 1 of 2 groups: </p> <p class="seamTextPara"> <i class="seamTextEmphasis">Group 1: Experimental</i> </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Phesgo, by injection, every 3 weeks</li> <li class="seamTextUnorderedListItem">Chemotherapy</li> </ul> <p class="seamTextPara"> followed by: </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Inavolisib, by mouth, daily</li> <li class="seamTextUnorderedListItem">Phesgo, by injection, every 3 weeks</li> <li class="seamTextUnorderedListItem">Standard of care hormone therapy (optional, if relevant)</li> </ul> <p class="seamTextPara"> <i class="seamTextEmphasis">Group 2: Control</i> </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Phesgo, by injection, every 3 weeks</li> <li class="seamTextUnorderedListItem">Chemotherapy</li> </ul> <p class="seamTextPara"> followed by: </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Placebo for inavolisib, by mouth, daily</li> <li class="seamTextUnorderedListItem">Phesgo, by injection, every 3 weeks</li> <li class="seamTextUnorderedListItem">Standard of care hormone therapy (optional, if relevant)</li></ul>

What's being studied?

<ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">You will first receive induction therapy (initial therapy used when treating a disease) with Phesgo and chemotherapy.</li> <li class="seamTextUnorderedListItem">Inavolisib is an experimental targeted therapy called a PI3K inhibitor. Blocking the PI3K pathway may slow or stop cancer cells from growing.</li> <li class="seamTextUnorderedListItem">Phesgo is a combination of two anti-HER2 targeted therapies: Perjeta® (pertuzumab) and Herceptin® (trastuzumab). It also includes a protein called hyaluronidase which helps your body absorb the targeted therapies.</li> <li class="seamTextUnorderedListItem">Pertuzumab and trastuzumab are typically given by IV. With Phesgo, you can receive these therapies by injection, which shortens the length of time it takes to receive treatment.</li></ul>

How can I learn more?

<ul class='seamTextUnorderedList'><li class='seamTextUnorderedListItem'>View eligibility criteria and additional trial information: <a href='https://clinicaltrials.gov/ct2/show/NCT05894239' target='_blank'>ClinicalTrials.gov</a> </li><li class='seamTextUnorderedListItem'><a href='https://www.gene.com/medical-professionals/pipeline/inavolisib-gdc-0077' target='_blank'>Genentech: Inavolisib Drug Information Page</a> </li><li class='seamTextUnorderedListItem'><a href='https://www.breastcancer.org/treatment/targeted_therapies/phesgo' target='_blank'>Breastcancer.org: Phesgo</a> </li></ul>
1

Inavolisib and Phesgo for Advanced HER2 Positive Breast Cancer with a PIK3CA Mutation

A Phase III, Multicenter, Randomized, Double-Blind, Placebo-Controlled Study Evaluating the Efficacy and Safety of Inavolisib in Combination With Phesgo Versus Placebo in Combination With Phesgo As Maintenance Therapy After First Line Induction Therapy in Participants With PIK3CA-Mutated HER2-Positive Locally Advanced or Metastatic Breast Cancer...
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Nearest Location:
341 miles
Lawrence J. Ellison Institute for Transformative Medicine
Los Angeles, CA

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Visits:
1 visit every 3 weeks

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ClinicalTrials.gov: NCT05894239

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Phase III

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