Study of Ipatasertib or Apitolisib With Abiraterone Acetate Versus Abiraterone Acetate in Participants With Castration-Resistant Prostate Cancer Previously Treated With Docetaxel Chemotherapy

Sponsor
Genentech, Inc. (Industry)
Overall Status
Active, not recruiting
CT.gov ID
NCT01485861
Collaborator
(none)
273
59
6
127.6
4.6
0

Study Details

Study Description

Brief Summary

This multicenter, international, Phase Ib/II trial consists of three stages: a Phase Ib, open-label stage in which the recommended Phase II dose was determined for ipataseritib administrated in combination with abiraterone and of apitolisib administrated in combination with abiraterone (this phase is no longer active), a Phase II, 3-arm, double-blind, randomized comparison of ipatasertib with abiraterone and prednisone/prednisolone versus placebo with abiraterone and prednisone/prednisolone and a safety single-arm, open-label cohort of ipatasertib 400 mg daily alone or in combination with prednisone/prednisolone or prednisone/prednisolone plus abiraterone.

Condition or Disease Intervention/Treatment Phase
Phase 1/Phase 2

Study Design

Study Type:
Interventional
Actual Enrollment :
273 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Double (Participant, Investigator)
Masking Description:
In Phase II participants and investigators were blinded with regard to treatment status (i.e., ipatasertib vs. placebo). Phase Ib and the safety cohort were open-label.
Primary Purpose:
Treatment
Official Title:
A Phase Ib/II Study of Ipatasertib (GDC-0068) or Apitolisib (GDC-0980) With Abiraterone Acetate Versus Abiraterone Acetate in Patients With Castration-Resistant Prostate Cancer Previously Treated With Docetaxel-Based Chemotherapy
Actual Study Start Date :
Jan 11, 2012
Actual Primary Completion Date :
Sep 1, 2015
Anticipated Study Completion Date :
Aug 31, 2022

Arms and Interventions

Arm Intervention/Treatment
Experimental: Phase Ib: Ipatasertib 400 mg + abiraterone

Participants will receive ipatasertib 400 mg once daily, abiraterone 1000 mg once daily, and prednisone/prednisolone 5 mg twice daily (bid) continuously in 28-day treatment cycles until disease progression or intolerable toxicity.

Drug: Abiraterone
Orally once daily

Drug: Ipatasertib
Orally once daily

Drug: Prednisone
Orally bid

Drug: Prednisolone
Orally bid

Experimental: Phase Ib: Apitolisib 30 mg + abiraterone

Participants will receive apitolisib 30 mg once daily, abiraterone 1000 mg once daily, and prednisone/prednisolone 5 mg twice daily (bid) continuously in 28-day treatment cycles until disease progression or intolerable toxicity.

Drug: Abiraterone
Orally once daily

Drug: Apitolisib
Orally once daily

Drug: Prednisone
Orally bid

Drug: Prednisolone
Orally bid

Experimental: Phase II: Ipatasertib 400 mg + abiraterone

Participants will receive Ipatasertib 400 mg once daily, abiraterone 1000 mg once daily, and prednisone/prednisolone 5 mg bid continuously in 28-day treatment cycles until disease progression or intolerable toxicity.

Drug: Abiraterone
Orally once daily

Drug: Ipatasertib
Orally once daily

Drug: Prednisone
Orally bid

Drug: Prednisolone
Orally bid

Experimental: Phase II: Ipatasertib 200 mg + abiraterone

Participants will receive Ipatasertib 200 mg once daily, abiraterone 1000 mg once daily, and prednisone/prednisolone 5 mg bid continuously in 28-day treatment cycles until disease progression or intolerable toxicity.

Drug: Abiraterone
Orally once daily

Drug: Ipatasertib
Orally once daily

Drug: Prednisone
Orally bid

Drug: Prednisolone
Orally bid

Placebo Comparator: Phase II: Placebo + abiraterone

Participants will receive placebo (for Ipatasertib) once daily, abiraterone 1000 mg once daily, and prednisone/prednisolone 5 mg bid continuously in 28-day treatment cycles until disease progression or intolerable toxicity.

Drug: Abiraterone
Orally once daily

Drug: Placebo
Orally once daily

Drug: Prednisone
Orally bid

Drug: Prednisolone
Orally bid

Experimental: Safety Cohort: Ipataseritib 400 mg + Abiraterone + Prednisone

Participants will receive Ipataseritib 400 mg once daily in the AM for Cycle 1 day 1-18. On Day 19, Ipataseritib 400 mg will be switched to PM dosing for the remainder of the Cycle 1. Prednisone 5 mg starts in the PM of Cycle 1 day 8 and taken BID thereafter for the remainder of the study treatment Abiraterone 1000mg once a day starts on Cycle1 day 12 in the AM and should be taken at the same time as Ipataseritib. Starting from cycle 1 day 19, Ipataseritib and Abiraterone are dosed in PM at should be taken together at the same time each day until cycle 2 day 1. Starting from Cycle 2 Day 1, Participants may choose to take Ipatasertib and Abiraterone in either the AM or PM; however, they should be taken together at approximately the same time each day. Participants will receive the study treatment until disease progression or intolerable toxicity.

Drug: Abiraterone
Orally once daily

Drug: Ipatasertib
Orally once daily

Drug: Prednisone
Orally bid

Drug: Prednisolone
Orally bid

Outcome Measures

Primary Outcome Measures

  1. Phase Ib: Percentage of Participants With Dose Limiting Toxicity (DLTs) [Days 1 to 28 of Cycle 1 (Cycle length = 28 days)]

  2. Phase Ib: Percentage of Participants with Adverse Events (AEs) [Baseline up until 30 days following the last administration of study treatment or until initiation of another anti-cancer therapy, whichever occurs first (up to 3.6 years overall)]

  3. Phase Ib: Recommended Phase II Dose (RP2D) of Ipatasertib [Days 1 to 28 of Cycle 1 (Cycle length = 28 days)]

  4. Phase II: Radiographic Progression Free Survival (rPFS) - Intent-To-Treat (ITT) Population [Screening up to radiographic progression or death, whichever occurs first (assessed at screening, after Cycles 3, 5, 7, 9, every three cycles [12 weeks] thereafter, and at treatment completion [up to 3.6 years overall]) (cycle length = 28 days)]

  5. Phase II: rPFS in Participants With Institute of Cancer Research (ICR) Phosphatase and Tensin Homolog (PTEN) Loss [Screening up to radiographic progression or death, whichever occurs first (assessed at screening, after Cycles 3, 5, 7, 9, every three cycles [12 weeks] thereafter, and at treatment completion [up to 3.6 years overall]) (cycle length = 28 days)]

Secondary Outcome Measures

  1. Phase Ib: Maximum Plasma Concentration (Cmax) of Ipatasertib When Co-Administered With Abiraterone [Predose (0 hour), 1, 2, 4, 6, 24 hours post dose on Days 1, 15 of Cycle 1 (cycle length=28 days)]

  2. Phase Ib: Time to Cmax (tmax) of Ipatasertib When Co-Administered With Abiraterone [Predose (0 hour), 1, 2, 4, 6, 24 hours post dose on Days 1, 15 of Cycle 1 (cycle length=28 days)]

  3. Phase Ib: Area Under The Concentration-Time Curve From Time 0 to 24 Hours (AUC0-24) of Ipatasertib When Co-Administered With Abiraterone [Predose (0 hour), 1, 2, 4, 6, 24 hours post dose on Days 1, 15 of Cycle 1 (cycle length=28 days)]

  4. Phase Ib: Total Body Clearance (CL/F) of Ipatasertib When Co-Administered With Abiraterone [Predose (0 hour), 1, 2, 4, 6, 24 hours post dose on Days 1, 15 of Cycle 1 (cycle length=28 days)]

  5. Phase Ib: Accumulation Ratio of Ipatasertib When Co-Administered With Abiraterone [Predose (0 hour), 1, 2, 4, 6, 24 hours post dose on Days 1, 15 of Cycle 1 (cycle length=28 days)]

  6. Phase Ib: Cmax of G-037720 (Metabolite of Ipatasertib) [Predose (0 hour), 1, 2, 4, 6, 24 hours post dose on Days 1, 15 of Cycle 1 (cycle length=28 days)]

  7. Phase Ib: tmax of G-037720 (Metabolite of Ipatasertib) [Predose (0 hour), 1, 2, 4, 6, 24 hours post dose on Days 1, 15 of Cycle 1 (cycle length=28 days)]

  8. Phase Ib: AUC0-24 of G-037720 (Metabolite of Ipatasertib) [Predose (0 hour), 1, 2, 4, 6, 24 hours post dose on Day 15 of Cycle 1 (cycle length=28 days)]

  9. Phase Ib: Accumulation Ratio of G-037720 (Metabolite of Ipatasertib) [Predose (0 hour), 1, 2, 4, 6, 24 hours post dose on Days 1, 15 of Cycle 1 (cycle length=28 days)]

  10. Phase Ib: Cmax of Apitolisib When Co-Administered With Abiraterone [Pre-dose (0 hour), 1, 2, 4, 6, 24 hours post dose on Days 1, 15 of Cycle 1 (cycle length = 28 days)]

  11. Phase Ib: tmax of Apitolisib When Co-Administered With Abiraterone [Pre-dose (0 hour), 1, 2, 4, 6, 24 hours post dose on Days 1, 15 of Cycle 1 (cycle length = 28 days)]

  12. Phase Ib: AUC0-24 of Apitolisib When Co-Administered With Abiraterone [Pre-dose (0 hour), 1, 2, 4, 6, 24 hours post dose on Days 1, 15 of Cycle 1 (cycle length = 28 days)]

  13. Phase Ib: Cmax of Abiraterone When Co-Administered With Ipatasertib or Apitolisib [Predose (0 hour), 1, 2, 4, 6, 24 hours post dose on Days 1, 15 of Cycle 1 (cycle length=28 days)]

  14. Phase Ib: tmax of Abiraterone When Co-Administered With Ipatasertib or Apitolisib [Predose (0 hour), 1, 2, 4, 6, 24 hours post dose on Days 1, 15 of Cycle 1 (cycle length=28 days)]

  15. Phase Ib: AUC0-24 of Abiraterone When Co-Administered With Ipatasertib or Apitolisib [Predose (0 hour), 1, 2, 4, 6, 24 hours post dose on Days 1, 15 of Cycle 1 (cycle length=28 days)]

  16. Phase Ib: Plasma Half-Life of Abiraterone When Co-Administered With Ipatasertib or Apitolisib [Predose (0 hour), 1, 2, 4, 6, 24 hours post dose on Days 1, 15 of Cycle 1 (cycle length=28 days)]

  17. Phase Ib: Accumulation Ratio of Abiraterone When Co-Administered With Ipatasertib or Apitolisib [Predose (0 hour), 1, 2, 4, 6, 24 hours post dose on Days 1, 15 of Cycle 1 (cycle length=28 days)]

  18. Phase II: Overall Survival in the ITT Population [Screening up to death (assessed at screening, after Cycles 3, 5, 7, 9, every three cycles [12 weeks] thereafter up to end of treatment [up to 8.9 years overall]) (cycle length = 28 days)]

  19. Phase II: Overall Survival in Participants With ICR PTEN Loss [Screening up to death (assessed at screening, after Cycles 3, 5, 7, 9, every three cycles [12 weeks] thereafter up to end of treatment [up to 8.9 years overall]) (cycle length = 28 days)]

  20. Phase II: Percentage of Participants With PSA Progression in the ITT Population [Baseline up to 30 days after last dose (assessed at baseline, Day 1 of every cycle [starting from Cycle 2] till 30 days after last dose [up to overall 3.6 years]) (cycle length = 28 days)]

  21. Phase II: Percentage of Participants With PSA Progression in Participants With ICR PTEN Loss [Baseline up to 30 days after last dose (assessed at baseline, Day 1 of every cycle [starting from Cycle 2] till 30 days after last dose [up to overall 3.6 years]) (cycle length = 28 days)]

  22. Phase II: Time to PSA Progression in the ITT Population [Screening up to PSA progression (assessed at screening, after Cycles 3, 5, 7, 9, every three cycles [12 weeks] thereafter up to end of treatment [up to 3.6 years overall]) (cycle length = 28 days)]

  23. Phase II: Time to PSA Progression in Participants With ICR PTEN Loss [Screening up to PSA progression (assessed at screening, after Cycles 3, 5, 7, 9, every three cycles [12 weeks] thereafter up to end of treatment [up to 3.6 years overall]) (cycle length = 28 days)]

  24. Phase II: Percentage of Participants With PSA Response in the ITT Population [Baseline up to 30 days after last dose (assessed at baseline, Day 1 of every cycle [starting from Cycle 2] till 30 days after last dose [up to overall 3.6 years]) (cycle length = 28 days)]

  25. Phase II: Percentage of Participants With PSA Response in Participants With ICR PTEN Loss [Baseline up to 30 days after last dose (assessed at baseline, Day 1 of every cycle [starting from Cycle 2] till 30 days after last dose [up to overall 3.6 years]) (cycle length = 28 days)]

  26. Phase II: Percentage of Participants With Objective Response in the ITT Population [Screening up to radiographic progression or death, whichever occurred first (assessed at screening, after Cycles 3, 5, 7, 9, every three cycles [12 weeks] thereafter up to end of treatment [up to 3.6 years overall]) (cycle length = 28 days)]

  27. Phase II: Percentage of Participants With Objective Response in Participants With ICR PTEN Loss [Screening up to radiographic progression or death, whichever occurred first (assessed at screening, after Cycles 3, 5, 7, 9, every three cycles [12 weeks] thereafter up to end of treatment [up to 3.6 years overall]) (cycle length = 28 days)]

  28. Phase II: Duration of Tumor Response in the ITT Population [Screening up to radiographic progression or death, whichever occurred first (assessed at screening, after Cycles 3, 5, 7, 9, every three cycles [12 weeks] thereafter up to end of treatment [up to 3.6 years overall]) (cycle length = 28 days)]

  29. Phase II: Duration of Tumor Response in Participants with ICR PTEN Loss [Screening up to radiographic progression or death, whichever occurred first (assessed at screening, after Cycles 3, 5, 7, 9, every three cycles [12 weeks] thereafter up to end of treatment [up to 3.6 years overall]) (cycle length = 28 days)]

  30. Phase II: Percentage of Participants With Circulating Tumor Cells (CTC) Reduction Response in the ITT Population [Baseline, on Day 1 of Cycle 2, on Day 1 of Cycle 3, and at the treatment completion visit (up to overall 3.6 years) (cycle length=28 days)]

  31. Phase II: Percentage of Participants With CTC Reduction Response in Participants With ICR PTEN Loss [Baseline, on Day 1 of Cycle 2, on Day 1 of Cycle 3, and at the treatment completion visit (up to overall 3.6 years) (cycle length=28 days)]

  32. Phase II: Percentage of Participants With CTC Conversion in the ITT Population [Baseline, on Day 1 of Cycle 2, on Day 1 of Cycle 3, and at the treatment completion visit (up to overall 3.6 years) (cycle length=28 days)]

  33. Phase II: Percentage of Participants With CTC Conversion in Participants With ICR PTEN Loss [Baseline, on Day 1 of Cycle 2, on Day 1 of Cycle 3, and at the treatment completion visit (up to overall 3.6 years) (cycle length=28 days)]

  34. Phase II: Percentage of Participants With Pain Progression in the ITT Population [Screening, Day 1 of each cycle (cycle length=28 days) up to treatment completion (up to 3.6 years)]

  35. Phase II: Percentage of Participants With Pain Progression in Participants With ICR PTEN Loss [Screening, Day 1 of each cycle (cycle length=28 days) up to treatment completion (up to 3.6 years)]

  36. Phase II: Time to Pain Progression in the ITT Population [Screening, Day 1 of each cycle (cycle length=28 days) up to treatment completion (up to 3.6 years)]

  37. Phase II: Time to Pain Progression in Participants With ICR PTEN Loss [Screening, Day 1 of each cycle (cycle length=28 days) up to treatment completion (up to 3.6 years)]

  38. Phase II: Percentage of Participants With Adverse Events (AEs) [Baseline up until 30 days following the last administration of study treatment or until initiation of another anti-cancer therapy, whichever occurs first (up to 8.9 years)]

  39. Phase II: Ipatasertib Plasma Concentrations When Co-Administered With Abiraterone [Phase II: Cycle 1, Day 1: 1, 4 hours postdose; Cycle 1, Day 15: predose, 2, 4 hours postdose; Cycle 2, Day 1: predose, 1-4 hours postdose (cycle length = 28 days)]

  40. Phase II: G-037720 (Metabolite of Ipatasertib) Plasma Concentrations [Phase II: Cycle 1, Day 1: 1, 4 hours postdose; Cycle 1, Day 15: predose, 2, 4 hours postdose; Cycle 2, Day 1: predose, 1-4 hours postdose (cycle length=28 days)]

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years and Older
Sexes Eligible for Study:
Male
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • Histologically confirmed metastatic or advanced prostate adenocarcinoma that has been previously treated with docetaxel-based therapy and has progressed during treatment of at least one hormonal therapy(prior docetaxel is not required for the safety cohort)

  • Two rising PSA levels greater than or equal to (>/=) 2 ng/mL measured >/= 1 week apart or radiographic evidence of disease progression in soft tissue or bone

  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 at screening

  • Adequate hematologic and organ function

  • Documented willingness to use an effective means of contraception

  • Safety cohort only: agreement to use CGM for first cycle of treatment

Exclusion Criteria:
  • History of Type I or Type II diabetes mellitus requiring insulin; safety cohort: patients who are receiving any pharmacologic treatment for diabetes are not eligible

  • New York Heart Association Class III or IV heart failure or Left ventricular ejection fraction < 50% or ventricular arrhythmia requiring medication

  • Significant atherosclerotic disease, as evidenced by: unstable angina, history of myocardial infarction within 6 months prior to Day 1, or cerebrovascular accident within 6 months prior to Day 1

  • Active autoimmune disease that is not controlled by nonsteroidal anti-inflammatory drugs or active inflammatory disease which requires immunosuppressive therapy

  • Clinically significant history of liver disease

  • History of adrenal insufficiency or hyperaldosteronism

  • Phase II only: Previous therapy for prostate cancer with 17 alpha-hydroxylase/C17,20-lyase inhibitors, including abiraterone

  • Phase II only: Previous treatment for prostate cancer with Protein kinase B phosphatidylinositol 3 kinase and/or mammalian target of rapamycin inhibitors

  • Need for chronic corticosteroid therapy of >/= 20 mg of prednisone per day or an equivalent dose of other anti inflammatory corticosteroids or immunosuppressant

Contacts and Locations

Locations

Site City State Country Postal Code
1 HonorHealth Research Institute - Bisgrove Scottsdale Arizona United States 85258
2 Pacific Hematology Oncology Associates San Francisco California United States 94115
3 Florida Cancer Specialists - Fort Myers (New Hampshire Ct) Fort Myers Florida United States 33901-8101
4 Florida Cancer Specialists; Sarasota Sarasota Florida United States 34232
5 Kaiser Permanente Medical Ctr Honolulu Hawaii United States 96819
6 Johns Hopkins Univ; Bunting Blaustein Cancer Center Baltimore Maryland United States 21231
7 Karmanos Cancer Institute Detroit Michigan United States 48201
8 Urology Cancer Center & GU Research Network Omaha Nebraska United States 68130
9 New York Cancer and Blood Specialists - Setauket Medical Oncology East Setauket New York United States 11733
10 Weill Cornell Medical College New York New York United States 10065
11 Carolina Urologic Research Center Myrtle Beach South Carolina United States 29572
12 Sarah Cannon Cancer Center - Tennessee Oncology, Pllc Nashville Tennessee United States 37203
13 Masarykuv onkologicky ustav Brno Czechia 656 53
14 Fakultni nemocnice Hradec Kralove; I. interni klinika,Oddeleni invazivni kardiologie Hradec Kralove Czechia 50012
15 Urocentrum Praha s.r.o. Praha 2 Czechia 120 00
16 Vseobecna fakultni nemocnice v Praze Praha 2 Czechia 128 08
17 Fakultni Thomayerova Nemocnice; Revmatologicke Oddeleni Praha Czechia 140 59
18 ICO Paul Papin; Oncologie Medicale. Angers France 49055
19 Centre Léon Bérard - Centre régional de lutte contre le cancer Rhône-Alpes Lyon France 69008
20 Hia Du Val De Grace Paris France 75230
21 Institut Curie; Oncologie Medicale Paris France 75231
22 GH Paris Saint Joseph; Hopital De Jour Oncologie Paris France 75674
23 Hopital d'Instruction des Armees de Begin Saint-Mande France 94160
24 Institut Gustave Roussy; Departement Oncologie Medicale Villejuif France 94805
25 Alexandras Hospital; Dept. of Clin. Therapeutics, Athens Uni School of Medicine Athens Greece 115 28
26 Univ General Hosp Heraklion; Medical Oncology Heraklion Greece 711 10
27 University Hospital of Patras Medical Oncology Patras Greece 265 04
28 Metropolitan Hospital; 2Nd Oncology Clinic Piraeus Greece 185 47
29 University Hospital of Larissa; Oncology Λαρισα Greece 413 35
30 IRST Istituto Scientifico Romagnolo Per Lo Studio E Cura Dei Tumori, Sede Meldola; Oncologia Medica Meldola Emilia-Romagna Italy 47014
31 Azienda Ospedaliera Istituti Ospitalieri Cremona Lombardia Italy 26100
32 Irccs Ospedale San Raffaele;Oncologia Medica Milano Lombardia Italy 20132
33 Irccs Istituto Nazionale Dei Tumori (Int);S.C. Medicina Oncologica 2 Milano Lombardia Italy 20133
34 Ospedale S. Donato; Divisione Di Reumatologia Arezzo Toscana Italy 52100
35 Het Nederlands Kanker Inst Amsterdam Netherlands 1066 EC
36 Vu Medisch Centrum; Afdeling Longziekten Amsterdam Netherlands 1081 HV
37 MC Haaglanden; Oncologie Den Haag Netherlands 2512 VA
38 UMC St Radboud Nijmegen Netherlands 6525 GA
39 Sint Franciscus Gasthuis; Inwendige Geneeskunde Rotterdam Netherlands 3045 PM
40 Sf. Constantin Hospital; Oncology Brasov Romania 500019
41 Prof. Dr. Th. Burghele Clin Urology Hosp Bucharest Romania 050659
42 Prof. Dr. I. Chiricuta Institute of Oncology Cluj Napoca Romania 400015
43 ONCOMED - Medical Centre Timisoara Romania 300239
44 Municipal Hosp Turdal; Oncology Turda Romania 401103
45 Hospital General Universitario de Elche; Servicio de Oncologia Elche Alicante Spain 03203
46 Hospital Universitari Germans Trias i Pujol; Servicio de Oncologia Badalona Barcelona Spain 08916
47 Corporacio Sanitaria Parc Tauli; Servicio de Oncologia Sabadell Barcelona Spain 8208
48 Clinica Universitaria de Navarra Pamplona Navarra Spain 31008
49 Hospital Univ Vall d'Hebron; Servicio de Oncologia Barcelona Spain 08035
50 Hospital General Universitario Gregorio Marañon Madrid Spain 28007
51 Hospital Universitario 12 de Octubre; Servicio de Oncologia Madrid Spain 28041
52 Hospital Madrid Norte Sanchinarro Madrid Spain 28050
53 Hospital Clinico Universitario Virgen de la Victoria Malaga Spain 29010
54 Queen Elizabeth Hospital; Centre for Clinical Haematology Birmingham United Kingdom B15 2TH
55 Gartnavel General Hospital Glasgow United Kingdom G12 0XH
56 St. James University Hospital; Pharmacy Department Leeds United Kingdom LS9 7TF
57 The Clatterbridge Cancer Centre NHS Foundation Trust Liverpool United Kingdom L7 8YA
58 Sarah Cannon Research Institute London United Kingdom W1G 6AD
59 The Royal Marsden Hospital Sutton United Kingdom SM2 5PT

Sponsors and Collaborators

  • Genentech, Inc.

Investigators

  • Study Director: Clinical Trials, Genentech, Inc.

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.
Responsible Party:
Genentech, Inc.
ClinicalTrials.gov Identifier:
NCT01485861
Other Study ID Numbers:
  • GO27983
  • 2011-004126-10
First Posted:
Dec 6, 2011
Last Update Posted:
Jul 27, 2022
Last Verified:
Jul 1, 2022
Additional relevant MeSH terms:

Study Results

No Results Posted as of Jul 27, 2022