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Breast CancerPhase 1NCT00960960

A Study of PI3-Kinase Inhibitor GDC-0941 in Combination With Paclitaxel, With and Without Bevacizumab or Trastuzumab, and With Letrozole, in Participants With Locally Recurrent or Metastatic Breast Cancer

A Phase 1 study testing Bevacizumab, Pictilisib and Letrozole in people with Breast Cancer, run by Genentech, Inc. at 5 sites in 3 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is an open-label, multicenter, Phase Ib dose-escalation study to assess the safety, tolerability, and pharmacokinetics of oral (PO) pictilisib administered with letrozole or intravenous (IV) paclitaxel with and without IV bevacizumab or IV trastuzumab in participants with locally recurrent or metastatic breast… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Breast Cancer
What is being tested?
Bevacizumab, Pictilisib and Letrozole
Could I receive a placebo?
No, everyone receives an active treatment
How many people
71 participants
Where
5 sitesin 3 countries
Study dates
Aug 2009to Dec 2015
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Confirmed adenocarcinoma of the breast with locally recurrent or metastatic disease
  • Adequate organ and bone marrow function as assessed by laboratory tests
  • Evaluable disease or disease measurable per RECIST
  • Agreement to use an effective form of contraception for the duration of the study

Who cannot join

  • History of malabsorption syndrome or other condition that would interfere with enteral absorption
  • Any condition requiring full-dose anticoagulants, such as warfarin, heparin, or thrombolytic agents
  • Prior anti-cancer therapy (e.g., chemotherapy, biologic therapy, radiotherapy, or hormonal therapy) within 4 weeks or 5 half-lives (whichever is shorter) of the first dose of study treatment
  • Uncontrolled current illness
  • Active small or large intestine inflammation (such as Crohn's disease or ulcerative colitis)
  • Clinically significant history of liver disease, including cirrhosis, current alcohol abuse, or current known active infection with human immunodeficiency virus (HIV), hepatitis B virus, or hepatitis C virus
Show all 13Show fewer
  • Known HIV infection
  • New York Heart Association (NYHA) Class II or greater congestive heart failure
  • Active ventricular arrhythmia requiring medication
  • Pregnancy, lactation, or breastfeeding
  • Known significant hypersensitivity to study drugs or excipients
  • History of arterial thromboembolic disease within 6 months of first study treatment
  • No more than two prior chemotherapy regimens for metastatic disease

Trial locations and contacts

5 sites in 3 countries.

5 sites in 3 countries

United States3 sites
  • Study site

    Boston, Massachusetts, 02115

  • Study site

    Nashville, Tennessee, 37232

  • Study site

    Peoria, Illinois, 61615

Other trials in United States

Belgium1 site
  • Study site

    Leuven, 3000

Other trials in Belgium

Italy1 site
  • Study site

    Milan, Lombardy, 20133

Other trials in Italy

About this study

Official title: A Phase Ib, Open-Label, Dose-Escalation Study of the Safety and Pharmacology of PI3-Kinase Inhibitor GDC-0941 (Pictilisib) in Combination With Paclitaxel, With and Without Bevacizumab or Trastuzumab, and With Letrozole in Patients With Locally Recurrent Or Metastatic Breast Cancer

This is an open-label, multicenter, Phase Ib dose-escalation study to assess the safety, tolerability, and pharmacokinetics of oral (PO) pictilisib administered with letrozole or intravenous (IV) paclitaxel with and without IV bevacizumab or IV trastuzumab in participants with locally recurrent or metastatic breast cancer. The study consists of three parts. Part 1 (pictilisib will be administered in 21+7 schedule along with paclitaxel and/or bevacizumab), Part 2 (pictilisib will be administered in 5+2 schedule along with paclitaxel and/or bevacizumab or trastuzumab) and Part 3 (pictilisib will be administered in combination with letrozole). Part 1 and Part 2 consists of two stages; a dose escalation stage and a cohort-expansion stage.

Conditions
Breast Cancer
Being tested
Bevacizumab, Pictilisib, Letrozole, Paclitaxel, Trastuzumab
Keywords
MBC, PI3K, Avastin, Herceptin
Medical subject headings
Breast Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • BevacizumabDrug

    Also called Avastin

    Bevacizumab will be administered IV at a dose of 10 mg/kg on Days 1 and 15 of each 28-day cycle.

  • PictilisibDrug

    Also called GDC-0941

    Pictilisib will be administered PO QD on escalating doses.

  • LetrozoleDrug

    Letrozole will be administered PO at a dose of 2.5 mg QD for for each 28-day cycle.

  • PaclitaxelDrug

    Paclitaxel will be administered IV at a dose of 90 mg/m^2 on Days 1, 8, and 15 of each 28-day cycle.

  • TrastuzumabDrug

    Also called Herceptin

    Trastuzumab will be administered IV at a dose of 2-4 mg/kg on on Days 1, 8, 15, and 22 of each 28-day cycle.

Study groups in NCT00960960
Study groupRoleWhat they receive
Part 1 (Cohort 1-2): Pictilisib 60 mg +Paclitaxel +BevacizumabExperimentalPictilisib 60 mg will be administered orally (PO) once daily (QD) for 21 consecutive days of each 28-day cycle (21+7 schedule) with paclitaxel 90 milligrams per meter square (mg/m^2) intravenously (IV) on Days 1, 8, and 15 and bevacizumab 10 milligrams per kilogram (mg/kg) IV on Days 1 and 15 of each 28-day cycle. In Cohort 1 (Part 1), pictilisib will be evaluated with paclitaxel only; participants in Cohort 1 (Part 1) will be eligible to receive bevacizumab starting at Cycle 2. Cycle 1 will be 29 days and subsequent cycles will be 28 days. Study treatment will continue until disease progression or unacceptable toxicity.
Receives: Drug: Bevacizumab; Drug: Pictilisib; Drug: Paclitaxel
Part 1 (Cohort 3): Pictilisib 100 mg+ Paclitaxel + BevacizumabExperimentalPictilisib 100 mg will be administered PO QD for 21 consecutive days of each 28-day cycle (21+7 schedule) with paclitaxel 90 mg/m^2 IV on Days 1, 8, and 15 and bevacizumab 10 mg/kg IV on Days 1 and 15 of each 28-day cycle. Cycle 1 will be 29 days and subsequent cycles will be 28 days. Study treatment will continue until disease progression or unacceptable toxicity.
Receives: Drug: Bevacizumab; Drug: Pictilisib; Drug: Paclitaxel
Part 2 (Arm A: Cohort 1a): Pictilisib 165 mg + PaclitaxelExperimentalPictilisib 165 mg will be administered PO QD for repeated rounds of 5 consecutive days followed by 2 consecutive drug-free days in each 28-day cycle (5+2 schedule) with paclitaxel 90 mg/m^2 IV on Days 1, 8, and 15 of each 28-day cycle. Cycle 1 will be 29 days and subsequent cycles will be 28 days. Study treatment will continue until disease progression or unacceptable toxicity
Receives: Drug: Pictilisib; Drug: Paclitaxel
Part 2 (Arm A: Cohort 2a): Pictilisib 250 mg + PaclitaxelExperimentalPictilisib 250 mg will be administered PO QD for repeated rounds of 5 consecutive days followed by 2 consecutive drug-free days in each 28-day cycle (5+2 schedule) with paclitaxel 90 mg/m^2 IV on Days 1, 8, and 15 of each 28-day cycle. Cycle 1 will be 29 days and subsequent cycles will be 28 days. Study treatment will continue until disease progression or unacceptable toxicity.
Receives: Drug: Pictilisib; Drug: Paclitaxel
Part 2 (Arm A: Cohort 3a): Pictilisib 330 mg + PaclitaxelExperimentalPictilisib 330 mg will be administered PO QD for repeated rounds of 5 consecutive days followed by 2 consecutive drug-free days in each 28-day cycle (5+2 schedule) with paclitaxel 90 mg/m^2 IV on Days 1, 8, and 15 of each 28-day cycle. Cycle 1 will be 29 days and subsequent cycles will be 28 days. Study treatment will continue until disease progression or unacceptable toxicity.
Receives: Drug: Pictilisib; Drug: Paclitaxel
Part2(Arm B:Cohort 1b):Pictilisib 200mg+Paclitaxel+BevacizumabExperimentalPictilisib 200 mg will be administered PO QD for repeated rounds of 5 consecutive days followed by 2 consecutive drug-free days in each 28-day cycle (5+2 schedule) with paclitaxel 90 mg/m^2 IV on Days 1, 8, and 15 and bevacizumab 10 mg/kg IV on Days 1 and 15 of each 28-day cycle. Cycle 1 will be 29 days and subsequent cycles will be 28 days. Study treatment will continue until disease progression or unacceptable toxicity.
Receives: Drug: Bevacizumab; Drug: Pictilisib; Drug: Paclitaxel
Part2(Arm B:Cohort 2b):Pictilisib 250mg+Paclitaxel+BevacizumabExperimentalPictilisib 250 mg will be administered PO QD for repeated rounds of 5 consecutive days followed by 2 consecutive drug-free days in each 28-day cycle (5+2 schedule) with paclitaxel 90 mg/m^2 IV on Days 1, 8, and 15 and bevacizumab 10 mg/kg IV on Days 1 and 15 of each 28-day cycle. Cycle 1 will be 29 days and subsequent cycles will be 28 days. Study treatment will continue until disease progression or unacceptable toxicity.
Receives: Drug: Bevacizumab; Drug: Pictilisib; Drug: Paclitaxel
Part2(Arm B:Cohort 3b):Pictilisib 260mg+Paclitaxel+BevacizumabExperimentalPictilisib 260 mg will be administered PO QD for repeated rounds of 5 consecutive days followed by 2 consecutive drug-free days in each 28-day cycle (5+2 schedule) with paclitaxel 90 mg/m^2 IV on Days 1, 8, and 15 and bevacizumab 10 mg/kg IV on Days 1 and 15 of each 28-day cycle. Cycle 1 will be 29 days and subsequent cycles will be 28 days. Study treatment will continue until disease progression or unacceptable toxicity.
Receives: Drug: Bevacizumab; Drug: Pictilisib; Drug: Paclitaxel
Part2(Arm C:Cohort 1c):Pictilisib 180mg+Paclitaxel+TrastuzumabExperimentalPictilisib 180 mg will be administered PO QD for repeated rounds of 5 consecutive days followed by 2 consecutive drug-free days in each 28-day cycle (5+2 schedule) with paclitaxel 90 mg/m^2 IV on Days 1, 8, and 15 and trastuzumab 2-4 mg/kg IV on Days 1, 8, 15, and 22 of each 28-day cycle. Cycle 1 will be 29 days and subsequent cycles will be 28 days. Study treatment will continue until disease progression or unacceptable toxicity.
Receives: Drug: Pictilisib; Drug: Paclitaxel; Drug: Trastuzumab
Part2(Arm C:Cohort 2c):Pictilisib 260mg+Paclitaxel+TrastuzumabExperimentalPictilisib 260 mg will be administered PO QD for repeated rounds of 5 consecutive days followed by 2 consecutive drug-free days in each 28-day cycle (5+2 schedule) with paclitaxel 90 mg/m^2 IV on Days 1, 8, and 15 and trastuzumab 2-4 mg/kg IV on Days 1, 8, 15, and 22 of each 28-day cycle. Cycle 1 will be 29 days and subsequent cycles will be 28 days. Study treatment will continue until disease progression or unacceptable toxicity.
Receives: Drug: Pictilisib; Drug: Paclitaxel; Drug: Trastuzumab
Part 3: Pictilisib 260 mg + LetrozoleExperimentalPictilisib 260 mg will be administered PO QD continuously with letrozole 2.5 mg PO QD for each 28-day cycle. Study treatment will continue until disease progression or unacceptable toxicity.
Receives: Drug: Pictilisib; Drug: Letrozole

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percentage of Participants With Dose-Limiting Toxicities (DLTs)

    Measured: First treatment cycle (Day 1 up to Day 29)

  2. Maximum Tolerated Dose (MTD) of Pictilisib

    Measured: First treatment cycle (Day 1 up to Day 29)

  3. Recommended Phase II Dose (RP2D) of Pictilisib

    Measured: Baseline up to 54.2 months

  4. Number of Cycles of Each Component of the Treatment Regimen

    Measured: Baseline up to 54.2 months

  5. Dose Intensity of Each Component of the Treatment Regimen

    Measured: Baseline up to 54.2 months

Secondary outcomes (13)
  1. Minimum Observed Plasma Concentration (Cmin) of Pictilisib

    Measured: Parts 1 and 2 (dose escalation): predose (0 hours [h]) on Day (D) 1,3,16, and 17 of Cycle (C) 1. Part 2 (dose expansion): predose (0h) on D3,16,17 of C1; Part 3: Predose (0h) on D1 of C1, C2-6, C≥7, D15 of C1 (cycle length=28 days; up to 54.5 months)

  2. Cmin of Paclitaxel

    Measured: Parts 1 and 2 (dose escalation): pre-paclitaxel infusion (0 h) on D2 and D16 of C1. Part 2 (dose expansion): pre-paclitaxel infusion (0 h) on D1 and D16 of C1 (cycle length=28 days)

  3. Cmin of Letrozole

    Measured: Part 3: Predose (0h) on D1 of C1, C2-6, C≥7, D15 of C1 (cycle length=28 days; up to 54.5 months)

  4. Area Under the Curve From Time Zero to Last Measurable Concentrations (AUClast) of Pictilisib

    Parts 1 and 2 (dose escalation): predose (0 h) and 1,2,3,6 h postdose on D1 and D16 of C1, 24h postdose on D1 of C1; predose (0h) on D3,17 of C1; study completion (up to 55.5 months). Part 2 (dose expansion): predose (0h) and 1,2,3,6h postdose on D16 of C1; predose (0h) on D3, D17 of C1; study completion (up to 55.5 months). Part 3: 3h postdose on D1 of C1; 1,2,3,4,8h postdose on D15 of C1; Predose (0h) on D1 of C1, C2-6, C≥7, D15 of C1 (cycle length=28 days; up to 54.5 months)

    Measured: Parts 1 and 2: D1,D3,D16,D17 of C1; study completion. Part 2: D3,D16, D17 of C1; study completion. Part 3: D15 of C1; D1 of C1 to C6, C≥7 (cycle length=28 days; up to 54.5 months) [detailed timeframe is provided in endpoint description]

  5. AUClast of Paclitaxel

    Parts 1 and 2 (dose escalation): pre-paclitaxel infusion (0 h), end of paclitaxel infusion (infusion length = 60 minutes), end of bevacizumab infusion (infusion length = 30 to 90 minutes), 2,4,6,24 h post-paclitaxel infusion on D2 and D16 of C1; study completion (up to 55.5 months). Part 2 (dose expansion): pre-paclitaxel infusion (0 h), end of paclitaxel infusion (infusion length = 60 minutes), end of bevacizumab infusion (infusion length = 30 to 90 minutes), 1,2,3,6,24 h post-paclitaxel infusion on D1 of C1; pre-paclitaxel infusion (0 h), end of paclitaxel infusion (infusion length = 60 minutes), end of bevacizumab infusion (infusion length = 30 to 90 minutes), 2, 4, 6, 24 h post-paclitaxel infusion on D16 of C1; study completion (cycle length=28 days; up to 55.5 months)

    Measured: Parts 1 and 2 (dose escalation): D2 and D16 of C1; study completion. Part 2 (dose expansion): D1 and D16 of C1; study completion (cycle length=28 days; up to 55.5 months) [detailed timeframe is provided in endpoint description]

  6. AUClast of Letrozole

    Measured: Part 3: 1,2,3,4,8h postdose on D15 of C1; Predose (0h) on D1 of C1, C2-6, C≥7, D15 of C1 (cycle length=28 days; up to 54.5 months)

  7. Maximum Observed Plasma Concentration (Cmax) of Pictilisib

    Parts 1 and 2 (dose escalation): predose (0 h) and 1,2,3,6 h postdose on D1 and D16 of C1, 24h postdose on D1 of C1; predose (0h) on D3,17 of C1; study completion (up to 55.5 months). Part 2 (dose expansion): predose (0h) and 1,2,3,6h postdose on D16 of C1; predose (0h) on D3, D17 of C1; study completion (up to 55.5 months). Part 3: 3h postdose on D1 of C1; 1,2,3,4,8h postdose on D15 of C1; Predose (0h) on D1 of C1, C2-6, C≥7, D15 of C1 (cycle length=28 days; up to 54.5 months)

    Measured: Parts 1 and 2: D1,D3,D16,D17 of C1; study completion. Part 2: D3,D16, D17 of C1; study completion. Part 3: D15 of C1; D1 of C1 to C6, C≥7 (cycle length=28 days; up to 54.5 months) [detailed timeframe is provided in endpoint description]

  8. Cmax of Paclitaxel

    Parts 1 and 2 (dose escalation): pre-paclitaxel infusion (0 h), end of paclitaxel infusion (infusion length = 60 minutes), end of bevacizumab infusion (infusion length = 30 to 90 minutes), 2,4,6,24 h post-paclitaxel infusion on D2 and D16 of C1; study completion (up to 55.5 months). Part 2 (dose expansion): pre-paclitaxel infusion (0 h), end of paclitaxel infusion (infusion length = 60 minutes), end of bevacizumab infusion (infusion length = 30 to 90 minutes), 1,2,3,6,24 h post-paclitaxel infusion on D1 of C1; pre-paclitaxel infusion (0 h), end of paclitaxel infusion (infusion length = 60 minutes), end of bevacizumab infusion (infusion length = 30 to 90 minutes), 2, 4, 6, 24 h post-paclitaxel infusion on D16 of C1; study completion (cycle length=28 days; up to 55.5 months)

    Measured: Parts 1 and 2 (dose escalation): D2 and D16 of C1; study completion. Part 2 (dose expansion): D1 and D16 of C1; study completion (cycle length=28 days; up to 55.5 months) [detailed timeframe is provided in endpoint description]

  9. Cmax of Letrozole

    Measured: Part 3: 1,2,3,4,8h postdose on D15 of C1; Predose (0h) on D1 of C1, C2-6, C≥7, D15 of C1 (cycle length=28 days; up to 54.5 months)

  10. Percentage of Participants With Objective Response According to Modified Response Evaluation Criteria in Solid Tumors (RECIST)

    Measured: Screening up to disease progression or death up to approximately 55.5 months (assessed at Screening and at the end [Days 22-28] of Cycles 2, 5, 8, and 11 and every 3 cycles thereafter [cycle length=28 days; up to approximately 55.5 months])

  11. Duration of Response According to Modified RECIST

    Measured: Screening up to disease progression or death up to approximately 55.5 months (assessed at Screening and at the end [Days 22-28] of Cycles 2, 5, 8, and 11 and every 3 cycles thereafter [cycle length=28 days; up to approximately 55.5 months])

  12. Percentage of Participants With Death or Disease Progression According to Modified RECIST

    Measured: Screening up to disease progression or death up to approximately 55.5 months (assessed at Screening and at the end [Days 22-28] of Cycles 2, 5, 8, and 11 and every 3 cycles thereafter [cycle length=28 days; up to approximately 55.5 months])

  13. Progression-free Survival According to Modified RECIST

    Measured: Screening up to disease progression or death up to approximately 55.5 months (assessed at Screening and at the end [Days 22-28] of Cycles 2, 5, 8, and 11 and every 3 cycles thereafter [cycle length=28 days; up to approximately 55.5 months])

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 Aug 2009 (estimated)
  2. Study startAug 2009
  3. Primary completionDec 2015
  4. Study completionDec 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
71 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00960960
Sponsor's protocol ID
GDC4629g
Other IDs
GO01304, 2009-010781-38, 2009
Status last verified
Dec 2016
First submitted
13 Aug 2009
Last updated
15 Dec 2016
Results posted
No

Publications

  • Schoffski P, Cresta S, Mayer IA, Wildiers H, Damian S, Gendreau S, Rooney I, Morrissey KM, Spoerke JM, Ng VW, Singel SM, Winer E. A phase Ib study of pictilisib (GDC-0941) in combination with paclitaxel, with and without bevacizumab or trastuzumab, and with letrozole in advanced breast cancer. Breast Cancer Res. 2018 Sep 5;20(1):109. doi: 10.1186/s13058-018-1015-x.

    PubMed 30185228

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Bevacizumab, Pictilisib and Letrozole in people with Breast Cancer, run by Genentech, Inc. at 5 sites in 3 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 15 Dec 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 5 sites in United States, Belgium, Italy. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Percentage of Participants With Dose-Limiting Toxicities (DLTs) (time frame: First treatment cycle (Day 1 up to Day 29)). The study lists 5 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00960960, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Dec 2016.

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