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Castration-Resistant Prostatic CancerPhase 1NCT04404140

A Study Evaluating The Safety, Efficacy and Pharmacokinetics Of Ipatasertib In Combination With Atezolizumab And Docetaxel In Metastatic Castration-Resistant Prostate Cancer (mCRPC).

A Phase 1 study testing Ipatasertib, Atezolizumab and Docetaxel in people with Castration-Resistant Prostatic Cancer, run by Hoffmann-La Roche at 9 sites in 4 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

A study evaluating the safety, preliminary efficacy and pharmacokinetics of ipatasertib in combination with atezolizumab and docetaxel in participants with mCRPC previously treated with second-generation AR (Androgen Receptor)-targeted therapy. Read more about this study

Who is it for?
Ages 18 years and older, men only
Conditions the study is for
Castration-Resistant Prostatic Cancer
What is being tested?
Ipatasertib, Atezolizumab and Docetaxel
Could I receive a placebo?
No, everyone receives an active treatment
How many people
6 participants
Where
9 sitesin 4 countries
Study dates
9 Jul 2020to 14 Oct 2022
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
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Ability to comply with the study protocol.
  • Adenocarcinoma of the prostate without small-cell or neuroendocrine features.
  • Metastatic disease that cannot be treated with curative intent.
  • Surgical or medical castration with testosterone serum level < 50 ng/dL (1.7 nM).
  • For participants treated with luteinizing hormone-releasing hormone analogs, initiation therapy >= 4 weeks prior to the first dose of study treatment and continued therapy throughout study treatment.
  • Progression of Prostate Cancer.
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  • Receipt of at least one prior line of second generation AR-targeted therapy.
  • For participants in Part A of study: measurable visceral disease or measurable extrapelvic adenopathy per RECIST v1.1.
  • For participants in Part B of study: either measurable visceral disease or measurable extrapelvic adenopathy by RECIST v1.1 or bone lesions by bone scan, or both.
  • Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1.
  • Life expectancy of >= 3 months.
  • Ability to swallow oral study drug.
  • Adequate organ and bone marrow function.
  • Resolved or stabilized toxicities resulting from previous therapy to Grade 1 (except for alopecia and neuropathy).
  • For men: agreement to remain abstinent (refrain from heterosexual intercourse) or use contraceptive measures and agreement to refrain from donating sperm.

Who cannot join

  • Prior treatment with an AKT, PI3K, or mTOR inhibitor.
  • Prior treatment with radium or other therapeutic radiopharmaceuticals for prostate cancer.
  • Prior therapy with an anti-PD-1, anti-PD-L1, anti-PD-L2 agent or with an agent directed to another stimulatory or co-inhibitory T-cell receptor (e.g., CTLA-4, OX-40, CD137).
  • Prior treatment with docetaxel or another chemotherapy agent for mCRPC.
  • Treatment with investigational therapy within 14 days prior to initiation of study drug.
  • History or known presence of central nervous system metastases including leptomeningeal carcinomatosis.
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  • Uncontrolled tumor-related pain.
  • Symptomatic lesions (e.g., bone metastases or metastases causing nerve impingement) amenable to palliative radiotherapy should be treated prior to enrollment.
  • Asymptomatic metastatic lesions whose further growth would likely cause functional deficits or intractable pain (e.g., epidural metastasis that is not presently associated with spinal cord compression) should be considered for loco- regional therapy if appropriate prior to enrollment.
  • Non-study-related minor surgical procedures =< 5 days or major (invasive) surgical procedure =< 28 days prior to the first dose of study treatment.
  • Active Hepatitis B and C infection (HBV/HCV).
  • Known HIV infection.
  • Uncontrolled pleural effusion, pericardial effusion, or ascites.
  • Illicit drug or alcohol abuse within 12 months prior to screening, in the investigator's judgment.
  • Malabsorption syndrome or other condition that would interfere with enteral absorption.
  • Serious infection requiring antibiotics within 14 days prior to the first dose of study treatment.
  • Any serious medical condition or abnormality in clinical laboratory tests that, in the investigator's judgment, precludes the participant's safe participation in and completion of the study.
  • History of another malignancy within 5 years prior to enrollment.
  • History of clinically significant cardiovascular dysfunction.
  • Presence of any other condition, metabolic dysfunction, physical examination finding, or laboratory finding that may increase the risk associated with study participation or may interfere with the interpretation of study results and in the opinion of the investigator, would make the participant inappropriate for study entry.
  • Ipatasertib-Specific Exclusion Criteria:
  • Type 1 or Type 2 diabetes mellitus requiring insulin at study entry.
  • History of inflammatory bowel disease (e.g., Crohn disease and ulcerative colitis) or active bowel inflammation (e.g., diverticulitis).
  • Grade >= 2 uncontrolled or untreated hypercholesterolemia or hypertriglyceridemia.
  • Treatment with strong CYP3A inhibitor or strong CYP3A inducer within 2 weeks or 5 drug-elimination half-lives of this treatment (whichever is longer) prior to initiation of study drug.
  • Atezolizumab-Specific Exclusion Criteria:
  • Active or history of autoimmune disease or immune deficiency.
  • History of idiopathic pulmonary fibrosis, organizing pneumonia (e.g., bronchiolitis obliterans), drug-induced pneumonitis, idiopathic pneumonitis, or evidence of active pneumonitis on screening chest computed tomography (CT) scan.
  • Prior allogeneic stem cell or solid organ transplantation.
  • Treatment with a live, attenuated vaccine within 4 weeks prior to initiation of study treatment, or anticipation of need for such a vaccine during treatment with atezolizumab or within 5 months after the last dose of atezolizumab.
  • History of severe allergic anaphylactic reactions to chimeric or humanized antibodies or fusion proteins.
  • Known hypersensitivity to Chinese hamster ovary cell products or recombinant human antibodies.
  • Treatment with systemic immunostimulatory agents within 4 weeks or 5 drug-elimination half-lives of the drug (whichever is longer) prior to initiation of study treatment.
  • Need for chronic corticosteroid therapy of >10 mg of prednisone per day or an equivalent dose of other anti-inflammatory corticosteroids or immunosuppressants for a chronic disease.
  • Treatment with systemic immunosuppressive medication within 2 weeks prior to initiation of study treatment, or anticipation of need for systemic immunosuppressive medication during the course of the study.
  • Docetaxel-Specific Exclusion Criteria:
  • Known hypersensitivity or contraindication to any component of docetaxel, including its excipient polysorbate 80.
  • Grade >= 2 peripheral neuropathy.

Trial locations and contacts

9 sites in 4 countries.

9 sites in 4 countries

France4 sites
  • HOPITAL JEAN MINJOZ; Oncologie

    Besançon, 25030

  • Centre Val Aurelle Paul Lamarque; Radiotherapie

    Montpellier, 34928

  • Hopital d'Instruction des Armees de Begin

    Saint-Mandé, 94160

  • Gustave Roussy

    Villejuif, 94805

Other trials in France

Spain2 sites
  • Institut Catala d Oncologia Hospital Duran i Reynals

    Barcelona, 08908

  • Hospital Ramon y Cajal; Servicio de Oncologia

    Madrid, 28034

Other trials in Spain

Switzerland2 sites
  • Kantonsspital Graubünden Medizin Onkologie; Onkologie und Hämatologie

    Chur, 7000

  • UniversitätsSpital Zürich; Zentrum für Hämatologie und Onkologie, Klinik für Onkologie

    Zurich, 8091

Other trials in Switzerland

Italy1 site
  • Fondazione IRCCS Istituto Nazionale dei Tumori

    Milan, Lombardy, 20133

Other trials in Italy

About this study

Official title: A Phase Ib, Open-Label, Multicenter Study Evaluating The Safety, Efficacy and Pharmacokinetics Of Ipatasertib In Combination With Atezolizumab And Docetaxel In Metastatic Castration-Resistant Prostate Cancer.

A study evaluating the safety, preliminary efficacy and pharmacokinetics of ipatasertib in combination with atezolizumab and docetaxel in participants with mCRPC previously treated with second-generation AR (Androgen Receptor)-targeted therapy. The study consists of two parts: [1] Part A: Safety run-in cohort of approximately 12 participants; [2] Part B: Expansion cohort of approximately 38 participants. All participants in this study will continue to be treated until progression of disease, loss of clinical benefit, unacceptable toxicity or withdrawal of consent.

Being tested
Ipatasertib, Atezolizumab, Docetaxel
Medical subject headings
Prostatic Neoplasms, Castration-Resistant

What participants receive

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

  • IpatasertibDrug

    Ipatasertib will be administered at a dose of 400 mg, as per the dosing schedule described above.

  • AtezolizumabDrug

    Atezolizumab will be administered at a fixed dose of 1200 mg, as per the dosing schedule described above.

  • DocetaxelDrug

    Docetaxel will be administered at a dose of 75 mg/m^2, as per the dosing schedule described above.

Study groups in NCT04404140
Study groupRoleWhat they receive
Ipatasertib + Atezolizumab + DocetaxelExperimentalPart A (Safety Run-In): 12 Participants will be administered Ipatasertib orally once a day [QD] from Day 1 to Day 14 in combination with Atezolizumab administered by intravenous (IV infusion) every 3 weeks (Q3W) on Day 1 of each cycle (a cycle being 21 days) and Docetaxel administered by IV infusion (Q3W) on Day 1 of each cycle. Docetaxel will be administered for a maximum of 10 cycles (approximately 7 months), after which Atezolizumab and Ipatasertib will be administered as a doublet until disease progression. During Part A, a staggered recruitment will be applied to the first and potentially first 6 participants to enrol a participant only once the former one has safely overcome the safety time window (Cycle 1). Part B (Expansion): 38 Participants will be administered Ipatasertib, Atezolizumab and Docetaxel as described above, though without a staggered enrolment or safety assessment window.
Receives: Drug: Ipatasertib; Drug: Atezolizumab; Drug: Docetaxel

What is being measured

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

  1. Percentage of Participants with Adverse Events (AEs)

    Assessed by the National Cancer Institute Common Terminology Criteria for Adverse Events, Version 5.0 (NCI CTCAE v5.0)

    Measured: Up to 35 months

  2. Confirmed Prostate Specific Antigen (PSA) Response

    Defined as the proportion of participants with a reduction in their PSA levels of 50% or more from baseline, confirmed by a second evaluation at least 3 weeks later

    Measured: Up to 35 months

  3. Overall Response Rate (ORR) (In participants presenting with measurable visceral disease or measurable extrapelvic adenopathy at baseline)

    Defined as the proportion of participants with a complete response (CR) or partial response (PR) on two consecutive occasions >= 4 weeks apart, as determined by the Investigator according to RECIST v1.1 (Response Evaluation Criteria in Solid Tumors, Version 1.1)

    Measured: Up to 35 months

Secondary outcomes (8)
  1. Time to PSA Progression

    Measured: Up to 35 months

  2. radiographic Progression-Free Survival (rPFS)

    Assessed according to the Prostate Cancer Working Group 3 (PCWG3) criteria

    Measured: Up to 35 months

  3. Overall Survival (OS) (median OS and landmark survival at 12, 18 and 24 months)

    Measured: Up to 35 months

  4. Documented Objective Response (DOR) (In participants presenting with measurable visceral disease or measurable extrapelvic adenopathy at baseline)

    Defined as the time from the first occurrence of a documented objective response to disease progression or death from any cause (whichever occurs first), as determined by the investigator according to RECIST v1.1

    Measured: Up to 35 months

  5. Clinical Benefit Rate (CBR) (In participants presenting with measurable visceral disease or measurable extrapelvic adenopathy at baseline)

    Defined as the proportion of participants who have an objective response (a CR or a PR) or stable disease for at least 27 weeks, as determined by the Investigator according to RECIST v1.1 and PCWG3 criteria

    Measured: Up to 35 months

  6. Plasma Concentrations (ng/mL) of Ipatasertib and G-037720 at pre-specified timepoints

    Measured: Up to 35 months

  7. Serum Concentrations (ng/mL) of Atezolizumab at pre-specified timepoints

    Measured: Up to 35 months

  8. Percentage of Participants with Anti-Drug Antibodies (ADAs) to Atezolizumab

    Measured: Up to 35 months

Timeline

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

  1. First posted27 May 2020
  2. Study start9 Jul 2020
  3. Primary completion14 Oct 2022
  4. Study completion14 Oct 2022

Why it stopped: Despite many risk-minimization strategies, the combination of ipatasertib, atezolizumab and docetaxel was challenging due to multiple study treatment modifications required to manage toxicity, making further enrollment inappropriate.

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
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
6 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04404140
Sponsor's protocol ID
CO41792
Other IDs
2019-004591-19, 2019
Status last verified
Oct 2023
First submitted
15 May 2020
Last updated
17 Oct 2023
Results posted
No
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Ipatasertib, Atezolizumab and Docetaxel in people with Castration-Resistant Prostatic Cancer, run by Hoffmann-La Roche at 9 sites in 4 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 15 inclusion and 38 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: stopped early, as of the sponsor's last update on 17 Oct 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 9 sites in France, Spain, Switzerland, 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 was stopped early (reason given: Despite many risk-minimization strategies, the combination of ipatasertib, atezolizumab and docetaxel was challenging due to multiple study treatment modifications required to manage toxicity, making further enrollment inappropriate.). Results are not available in the source record.

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 Adverse Events (AEs) (time frame: Up to 35 months). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 17 Oct 2023.

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