| E.1 Medical condition or disease under investigation |
| E.1.1 | Medical condition(s) being investigated |
| HER2-positive advanced breast cancer |
|
| E.1.1.1 | Medical condition in easily understood language |
| Advanced breast cancer that is distinguished from other breast cancer types by stage and the presence of molecules that respond to certain treatments |
|
| E.1.1.2 | Therapeutic area | Diseases [C] - Cancer [C04] |
| MedDRA Classification |
| E.1.2 Medical condition or disease under investigation |
| E.1.2 | Version | 21.1 |
| E.1.2 | Level | LLT |
| E.1.2 | Classification code | 10072737 |
| E.1.2 | Term | Advanced breast cancer |
| E.1.2 | System Organ Class | 100000004864 |
|
| E.1.3 | Condition being studied is a rare disease | No |
| E.2 Objective of the trial |
| E.2.1 | Main objective of the trial |
Safety run-in Part 1: To confirm the recommended phase 3 dose of alpelisib in combination with trastuzumab and pertuzumab Double-blind, randomized, placebo-controlled Part 2: To determine whether treatment with alpelisib in combination with trastuzumab and pertuzumab prolongs PFS compared to placebo in combination with trastuzumab and pertuzumab in adult patients with HER2-positive advanced breast cancer with a PIK3CA mutation |
|
| E.2.2 | Secondary objectives of the trial |
Safety run-in Part 1: - To determine the safety and tolerability of alpelisib in combination with trastuzumab and pertuzumab - To characterize exposure of alpelisib when administered in combination with trastuzumab and pertuzumab
Double-blind, randomized, placebo-controlled Part 2: - To determine whether treatment with alpelisib in combination with trastuzumab and pertuzumab prolongs OS in adult patients with HER2-positive advanced breast cancer with a PIK3CA mutation - To assess safety and tolerability - To assess additional efficacy parameters - To characterize exposure of alpelisib in combination with trastuzumab and pertuzumab - To evaluate PROs of alpelisib in combination with trastuzumab and pertuzumab - To evaluate the association between PIK3CA mutation status as measured in ctDNA at baseline with PFS upon treatment with alpelisib - To evaluate alpelisib in combination with trastuzumab and pertuzumab with respect to time to deterioration of ECOG performance status |
|
| E.2.3 | Trial contains a sub-study | No |
| E.3 | Principal inclusion criteria |
- Subject has histologically-confirmed HER2-positive breast cancer that is advanced (loco-regionally not amenable to surgery t or metastatic). - Subject has received pre-study induction therapy with up to and including 8 cycles of a taxane (docetaxel, paclitaxel, or nab-paclitaxel), plus trastuzumab and pertuzumab. A minimum of 4 cycles of taxane is permitted if discontinuation was due to toxicity - Subject has an Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1 - Subject has adequate bone marrow and organ function - Applies only to Part 2: Subject has a PIK3CA mutation(s) present in tumor tissue prior to enrollment, as determined by a Novartis designated central laboratory. |
|
| E.4 | Principal exclusion criteria |
- Subject with inflammatory breast cancer at screening. - Subject with evidence of disease progression during or following the pre-study induction therapy and prior to first dose of alpelisib (or alpelisib/alpelisib matching-placebo for Part 2) - Subject with an established diagnosis of diabetes mellitus type I or not controlled type II based on FPG and HbA1c - Subject has a known history of acute pancreatitis within 1 year of screening or past medical history of chronic pancreatitis - Subject has clinically significant, uncontrolled heart disease and/or recent cardiac events - Subject has a history of Steven-Johnson Syndrome (SJS), erythema multiforme (EM) or Toxic Epidermal Necrolysis (TEN). - Subject has currently documented pneumonitis/interstitial lung disease For Part 2 only: subject has known rare hereditary problems of galactose intolerance, the Lapp lactase deficiency, or glucose-galactose malabsorption, due to the excipient in the placebo tablet |
|
| E.5 End points |
| E.5.1 | Primary end point(s) |
Part 1: Incidence of DLTs during the first 6 weeks of treatment for each dose level associated with administration of alpelisib in combination with trastuzumab and pertuzumab Part 2: PFS based on Investigator assessment using RECIST 1.1 criteria |
|
| E.5.1.1 | Timepoint(s) of evaluation of this end point |
Part 1: 6 weeks Part 2: up to approximately 38 months |
|
| E.5.2 | Secondary end point(s) |
Part 1: - Safety: Incidence, type, and severity of adverse events per Common Terminology Criteria for Adverse Events (CTCAE) version 4.03 criteria including changes in laboratory values, vital signs, liver assessments and cardiac assessments - Tolerability: dose interruptions, reductions, dose intensity, and duration of exposure for all drug components - Summary statistics of alpelisib concentrations by timepoint and dose level
Part 2: - OS, as defined as the time from date of randomization to date of death due to any cause |
|
| E.5.2.1 | Timepoint(s) of evaluation of this end point |
Part 1: up to approximately 38 months Part 2: up to approximately 70 months |
|
| E.6 and E.7 Scope of the trial |
| E.6 | Scope of the trial |
| E.6.1 | Diagnosis | No |
| E.6.2 | Prophylaxis | No |
| E.6.3 | Therapy | Yes |
| E.6.4 | Safety | Yes |
| E.6.5 | Efficacy | Yes |
| E.6.6 | Pharmacokinetic | Yes |
| E.6.7 | Pharmacodynamic | No |
| E.6.8 | Bioequivalence | No |
| E.6.9 | Dose response | Yes |
| E.6.10 | Pharmacogenetic | No |
| E.6.11 | Pharmacogenomic | No |
| E.6.12 | Pharmacoeconomic | No |
| E.6.13 | Others | Yes |
| E.6.13.1 | Other scope of the trial description |
|
| E.7 | Trial type and phase |
| E.7.1 | Human pharmacology (Phase I) | No |
| E.7.1.1 | First administration to humans | No |
| E.7.1.2 | Bioequivalence study | No |
| E.7.1.3 | Other | No |
| E.7.1.3.1 | Other trial type description | |
| E.7.2 | Therapeutic exploratory (Phase II) | No |
| E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
| E.7.4 | Therapeutic use (Phase IV) | No |
| E.8 Design of the trial |
| E.8.1 | Controlled | Yes |
| E.8.1.1 | Randomised | Yes |
| E.8.1.2 | Open | No |
| E.8.1.3 | Single blind | No |
| E.8.1.4 | Double blind | Yes |
| E.8.1.5 | Parallel group | Yes |
| E.8.1.6 | Cross over | No |
| E.8.1.7 | Other | No |
| E.8.2 | Comparator of controlled trial |
| E.8.2.1 | Other medicinal product(s) | No |
| E.8.2.2 | Placebo | Yes |
| E.8.2.3 | Other | No |
| E.8.2.4 | Number of treatment arms in the trial | 2 |
| E.8.3 |
The trial involves single site in the Member State concerned
| No |
| E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
| E.8.4.1 | Number of sites anticipated in Member State concerned | 4 |
| E.8.5 | The trial involves multiple Member States | Yes |
| E.8.5.1 | Number of sites anticipated in the EEA | 146 |
| E.8.6 Trial involving sites outside the EEA |
| E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
| E.8.6.2 | Trial being conducted completely outside of the EEA | No |
| E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
| Argentina |
| Brazil |
| Canada |
| China |
| Colombia |
| Israel |
| Lebanon |
| Malaysia |
| Singapore |
| Taiwan |
| Thailand |
| United States |
| Austria |
| Finland |
| France |
| Poland |
| Sweden |
| Bulgaria |
| Netherlands |
| Romania |
| Spain |
| Czechia |
| Germany |
| Greece |
| Italy |
| Belgium |
| Hungary |
| Russian Federation |
| Slovakia |
| Turkey |
| United Kingdom |
|
| E.8.7 | Trial has a data monitoring committee | Yes |
| E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
|
| Study completion is defined as when the last subject finishes their safety and efficacy follow-up periods (as applicable) and any repeat assessments associated with these visits have been documented and followed-up appropriately by the Investigator or, in the event of an early study termination decision, the date of that decision. |
|
| E.8.9 Initial estimate of the duration of the trial |
| E.8.9.1 | In the Member State concerned years | 9 |
| E.8.9.1 | In the Member State concerned months | 8 |
| E.8.9.1 | In the Member State concerned days | 23 |
| E.8.9.2 | In all countries concerned by the trial years | 9 |
| E.8.9.2 | In all countries concerned by the trial months | 10 |
| E.8.9.2 | In all countries concerned by the trial days | 0 |