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A Study to Evaluate Safety/Tolerability of Immunotherapy Combinations in Participants With Triple-Negative Breast Cancer or Gynecologic Malignancies

A Phase 1/1b Study to Evaluate the Safety and Tolerability of Immunotherapy Combinations in Participants With Breast or Gynecologic Malignancies

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03719326
Enrollment
35
Registered
2018-10-25
Start date
2018-10-15
Completion date
2021-07-02
Last updated
2024-05-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

TNBC - Triple-Negative Breast Cancer, Ovarian Cancer

Keywords

Triple Negative Breast Cancer, TNBC, Ovarian Cancer

Brief summary

This is a Phase 1/1b, open-label, dose-escalation, and dose-expansion study to evaluate the safety, tolerability, pharmacokinetic (PK), pharmacodynamic (PD), and clinical activity of etrumadenant (AB928) in combination with pegylated liposomal doxorubicin (PLD) with or without IPI-549 in participants with advanced metastatic triple-negative breast cancer (TNBC) or ovarian cancer, and etrumadenant in combination with nanoparticle albumin-bound-paclitaxel (NP) in participants with advanced metastatic TNBC.

Detailed description

In the dose escalation phase, the following will be assessed: * Arm A: escalating doses of etrumadenant in combination with PLD at standard doses will be assessed in participants with advanced metastatic triple-negative breast cancer or ovarian cancer. Eligible participants will receive oral administration of etrumadenant as well as intravenous (IV) infusion of PLD. The recommended dose (RDE) for expansion Arms 1 and 2 and escalation Arm C will be determined upon completion of this dose escalation arm. * Arm B: escalating doses of etrumadenant in combination with the NP at standard doses will also be assessed in participants with advanced metastatic TNBC. Eligible participants will receive oral administration of etrumadenant as well as NP infusion. The RDE of etrumadenant will be determined upon completion of this dose escalation arm. * Arm C: escalating doses of IPI-549 in combination with the RDE of etrumadenant (from Arm A) and PLD at standard doses will be assessed in participants with advanced metastatic TNBC or ovarian cancer. Eligible participants will receive oral administration of both etrumadenant and IPI-549 as well as IV infusion of PLD. The RDE of IPI-549 for expansion Arm 4 will be determined upon completion of this dose escalation arm. In the dose expansion phase, the following will be assessed: * Arms 1 and 2: Etrumadenant at the RDE in combination with PLD at standard doses may be assessed in participants with advanced metastatic TNBC or ovarian cancer. * Arm 3: Etrumadenant at the RDE in combination with NP at standard doses may be assessed in participants with advanced metastatic TNBC. * Arm 4: Etrumadenant and IPI-549 at the RDE in combination with PLD at standard doses may be assessed in participants with advanced metastatic TNBC. Overall duration of treatment will depend on how well the treatment is tolerated. Treatment may continue until unacceptable toxicity or progressive disease or other reasons specified in the protocol.

Interventions

Etrumadenant is an A2aR and A2bR antagonist for oral use

IPI-549 is a phosphoinositide-3-kinase-gamma inhibitor for oral use

DRUGPegylated liposomal doxorubicin (PLD)

Doxil is an anthracycline topoisomerase II inhibitor that is encapsulated in liposomes for intravenous (IV) use

DRUGnanoparticle albumin-bound paclitaxel (NP)

NP is a microtubule inhibitor for intravenous (IV) use

Sponsors

Infinity Pharmaceuticals, Inc.
CollaboratorINDUSTRY
Arcus Biosciences, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

3+3 dose escalation

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Female participants, 18 years or older * Measurable disease per radiographic evaluation * Performance status 0 or 1 * Available archival tissue sample (within 2 years) or a fresh tumor biopsy may be required * Adequate organ, cardiac, and bone marrow function * Dose escalation * Participants with breast cancer: * Locally advanced or metastatic triple negative breast cancer (ER-negative, PgR-negative, and HER2-negative according to ASCO/CAP guidelines) with disease progression * No available alternative or curative therapy * Participants may have received any number of prior therapies for advanced/recurrent and progressive disease * Participants with ovarian cancer: * Locally advanced or metastatic ovarian cancer with disease progression * No available alternative or curative therapy * Participants may have received any number of prior therapies for advanced/recurrent and progressive disease * Dose expansion * Participants with breast cancer: * Locally advanced or metastatic triple negative breast cancer (ER-negative, PgR-negative, and HER2-negative according to ASCO/CAP guidelines) * Disease progression after no more than 3 prior lines of therapy * Participants with ovarian cancer: * Locally advanced or metastatic ovarian cancer that is platinum-resistant * Disease progression after no more than 3 prior lines of therapy

Exclusion criteria

* Received a live, attenuated vaccine within 4 weeks prior to first study treatment * Prior anticancer treatment including approved agents, systemic radiotherapy, or investigational therapy within 4 weeks prior first study treatment * Cancer other than the disease under study within 2 years prior to study entry, except for some cancers with a low risk of spreading like non-melanoma skin cancers * Inability to swallow oral medications * Participant is breastfeeding, pregnant, or expects to become pregnant during the study * Active autoimmune disease or documented history of autoimmune disease within 2 years prior to first study treatment * History of peptic ulcer or stomach bleeding within 6 months prior to first study treatment * Use of drugs contraindicated by the protocol within 4 weeks prior to and during study treatment * Prior treatment with drugs that suppress the immune system within 2 weeks prior to first study treatment * Presence of metastases in the brain or cancer spreading into the cerebrospinal fluid - CSF (leptomeningeal disease) * HIV, Hepatitis B, and C test results negative prior to first study treatment * Major surgery within 4 weeks prior to first study treatment * Participants who have previously received maximum cumulative lifetime anthracycline dosage or baseline ejection fraction \<50% (on heart echography)

Design outcomes

Primary

MeasureTime frame
Incidence of Adverse Events (AEs)From first dose date to 30 days after the last dose (Approximately 1 year)
Incidence of dose-limiting toxicities (DLTs) during the dose escalation phaseFrom first dose date to 28 days after the first dose

Secondary

MeasureTime frame
Plasma concentration of IPI-549Recorded at baseline (prior to first dose), during the first 4 cycles of treatment (4 months) and at the end of treatment (i.e. in total approximately 5 months)
Percentage of participants with a best overall response of Complete Response (CR) or Partial Response (PR), as determined by Investigator according to Response Evaluation in Solid Tumors (RECIST) v 1.1From study enrollment until participation discontinuation, first occurrence of progressive disease or death from any cause, whichever occurs first (approximately 3-5 years)
Percentage of participants with Disease Control (complete response, partial response, or stable disease) for > 6 months as determined by RECIST v1.1From study enrollment until disease progression or loss of clinical benefit (up to approximately 3-5 years)
Percentage of etrumadenant target inhibition in peripheral bloodCycle 1 Day 1 through Cycle 4 Day 1 (4 months) and at the end of treatment (in total approximately 5 months)
Progression Free Survival (PFS) as determined by the Investigator according to RECIST v1.1From start of the treatment up to first occurrence of progressive disease or death from any cause, whichever occurs first (up to approximately 3-5 years)
Overall Survival (OS) as determined by the Investigator according to RECIST v1.1From start of treatment up to death from any cause (up to approximately 3-5 years)
Immunophenotyping activity in select immune subsets for etrumadenant and IPI-549 in peripheral bloodCycle 1 Day 1 through Cycle 4 Day 1 (4 months) and at the end of treatment (in total approximately 5 months).
Duration of Response as determined by the Investigator according to RECIST v1.1From the date of the first occurrence of a documented objective response to first documentation of disease progression or death from any cause, whichever occurs first (up to approximately 3-5 years)
Plasma concentration of etrumadenantRecorded at baseline (prior to first dose), during the first 4 cycles of treatment (4 months) and at the end of treatment (i.e. in total approximately 5 months)

Countries

Australia, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 21, 2026