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Oligometastatic Prostate CancerPhase 2SBRT-AMICONCT05915442

Adenosine Signaling Modulation and Immune Checkpoint Inhibition With Hormone Sensitive Oligometastatic Prostate Cancer

A Phase 2 study testing Quemliclustat, Etrumadenant and Zimberelimab in people with Oligometastatic Prostate Cancer, run by Catherine Spina at 1 site in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

This study will evaluate the safety and effectiveness of a combination of study drugs including zimberelimab, etrumadenant, and quemliclustat in combination with metastasis-directed irradiation in men with hormone sensitive oligometastatic prostate cancer. Read more about this study

Who is it for?
Ages 18 to 99 years, men only
Conditions the study is for
Oligometastatic Prostate Cancer
What is being tested?
Quemliclustat, Etrumadenant and Zimberelimab
Could I receive a placebo?
No, everyone receives an active treatment
How many people
23 participants
Where
1 siteUnited States
Study dates
1 Jul 2023to Dec 2028
Phase
Phase 2
Are there results?
Not yet: the study is under way

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 to 99 years
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patient must have histologically confirmed adenocarcinoma of the prostate.
  • Patient's primary prostate cancer tumor treated with surgery and/or radiation (+/- ADT).
  • Patients must have one to three asymptomatic metastatic tumors of the bone or soft tissue that developed in the preceding 6 months that are < 5cm or < 250 cm3.
  • Prostate-specific antigen (PSA) > 0.5 ng/mL but < 50ng/ml
  • PSA doubling time (PSADT) < 15 months (using all available PSA values from time of relapse)
  • Testosterone > 125 ng/mL
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  • Age ≥18 years.
  • Patient must have life expectancy > 12 months.
  • Eastern Cooperative Oncology Group (ECOG) performance status 0-2
  • Normal organ and marrow function as defined below:
  • leukocytes ≥3,000/mcL
  • absolute neutrophil count ≥1,500/mcL
  • platelets ≥100,000/mcL
  • total bilirubin within normal institutional limits
  • aspartate transaminase (AST)(serum glutamic-oxaloacetic transaminase (SGOT))/alanine transaminase (ALT)(serum glutamic-pyruvic transaminase (SGPT) ) ≤2.5 × institutional upper limit of normal creatinine, within normal institutional limits
  • Male participants with female partners of childbearing potential are required to use highly effective contraceptive measures which include condom use. A man is considered fertile after puberty unless permanently sterile by bilateral orchidectomy. A female partner of is considered a woman of childbearing potential (WOCBP) following menarche and until becoming postmenopausal unless permanently sterile.
  • Permanent sterilization methods include hysterectomy, bilateral salpingectomy and bilateral oophorectomy.
  • A postmenopausal state is defined as no menses for 12 months without an alternative medical cause. A high follicle-stimulating hormone (FSH) level in the postmenopausal range may be used to confirm a postmenopausal state in women not using hormonal contraception or hormonal replacement therapy. However, in the absence of 12 months of amenorrhea, a single FSH measurement is insufficient.
  • Highly effective contraceptive measures include:
  • Combined (estrogen and progestogen containing) hormonal contraception associated with inhibition of ovulation: oral, intravaginal, transdermal
  • Progestogen only hormonal contraception associated with inhibition of ovulation: oral, injectable, implantable
  • Intrauterine device
  • Intrauterine hormone-releasing system
  • Surgical sterilization
  • The male participant is vasectomized (with documented medical confirmation of surgical success) and is the sole sexual partner of the WOCBP participant
  • Female partner of the male participant has undergone bilateral tubal ligation
  • Complete sexual abstinence defined as refraining from heterosexual intercourse during the entire period of risk associated with study treatment. The reliability of sexual abstinence needs to be evaluated in relation to the duration of the clinical trial and the preferred and usual lifestyle of the participant.
  • Male participants should refrain from donating sperm for 180 days after the last dose of the study drugs.
  • Patient must have the ability to understand and the willingness to sign written informed consent.

Who cannot join

  • Patient may not have had prior systemic therapy, with the exception of androgen deprivation therapy (ADT) associated with treatment of the primary prostate tumor or with salvage radiation therapy. The ADT could not exceed 3-years in duration and must have occurred greater than 6 months before time of enrollment.
  • Patients with known brain metastases should be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events.
  • Spinal cord compression or impending spinal cord compression.
  • Pulmonary and/or liver metastases > 1.0cm in largest dimension.
  • History of malignancy other than prostate cancer within 2 years prior to screening, except for malignancies with a negligible risk of metastasis or death (e.g., 5-year OS rate > 90%), such as nonmelanoma skin carcinoma or ductal carcinoma in situ.
  • Use of other investigational agents or treatment protocol.
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  • Treatment with therapeutic oral or intravenous (IV) antibiotics within 2 weeks prior to initiation of study treatment with the exception of patients receiving prophylactic antibiotics (e.g., to prevent a urinary tract infection or chronic obstructive pulmonary disease exacerbation) are eligible for the study.
  • Inability to swallow medications.
  • Malabsorption condition that would alter the absorption of orally administered medications.
  • Grade ≥ 3 hemorrhage or bleeding event within 28 days prior to initiation of study treatment.
  • History of idiopathic pulmonary fibrosis, organizing pneumonia (e.g., bronchiolitis obliterans), drug induced pneumonitis, or idiopathic pneumonitis, or evidence of active pneumonitis on screening chest computed tomography (CT) scan.
  • Severe infection within 4 weeks prior to initiation of study treatment, including, but not limited to, hospitalization for complications of infection, bacteremia, or severe pneumonia.
  • Positive total hepatitis B core antibody (HBcAb) test at screening. Patients can be eligible if positive total HBcAb test followed by a negative hepatitis B virus (HBV) DNA test at screening. The HBV test will be performed only for participants who have a positive total HBcAb test. Due to safety concerns related to viral activation, development of a secondary malignancy, as well as the potential for increased treatment-related toxicity, eligible participants must not have evidence of chronic viral infection at screening.
  • Due to the potential risk for drug-drug interactions with etrumadenant, participants must not have had:
  • Oral treatment with strong inhibitors of breast cancer resistance protein (BCRP) (e.g., cyclosporin A, eltrombopag) or BRCP substrates with a narrow therapeutic window, administered orally (e.g., prazosin, rosuvastatin) within 4 weeks or 5 drug-elimination half-lives of the drug (whichever is longer) prior to initiation of study treatment.
  • Oral treatment with strong inhibitors of P-glycoprotein (P-gp) substrates (e.g., itraconazole, quinidine, verapamil, dronedarone, ranolazine) or P-gp with a narrow therapeutic window, administered orally (e.g., digoxin) within 4 weeks or 5 drug-elimination half-lives of the drug (whichever is longer) prior to initiation of study treatment.
  • Treatment with known strong CYP3A4 inducers (e.g., rifampin, phenytoin, carbamazepine, phenobarbital, and St. John's Wort) or strong CYP3A4 inhibitors (e.g., clarithromycin, grapefruit juice, itraconazole, ketoconazole, posaconazole, telithromycin, and voriconazole) within 4 weeks or 5 half-lives of the drug (whichever is longer) prior to initiation of study treatment.
  • Treatment with known strong UDP-glucuronosyltransferases (UGTs) of UGT1A1, 1A4, 1A9 and 2B4 inhibitors (e.g., atazanavir) within 4 weeks or 5 half-lives of the drug, whichever is longer, prior to the initiation of study treatment.
  • Treatment with known sensitive substrates of BSEP within 4 weeks or 5 half-lives of the drug, whichever is longer, prior to the initiation of study treatment.
  • Treatment with known sensitive substrates of OCT2 within 4 weeks or 5 half-lives of the drug, whichever is longer, prior to the initiation of study treatment.
  • Treatment with known sensitive substrates of MATE1 within 4 weeks or 5 half-lives of the drug, whichever is longer, prior to the initiation of study treatment.
  • Immunosuppression (e.g., solid organ transplant on immunosuppression).
  • No known HIV, or active with Hepatitis C Virus (HCV) or Hepatitis B Virus (HBV).
  • Active autoimmune disease.
  • Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
  • Inability to lie flat to tolerate computed tomography (CT) simulation study and oligometastasis-directed stereotactic body radiotherapy (SBRT).
  • Use of any live vaccines against infectious diseases within 28 days of first dose of investigational products.
  • Refusal to sign informed consent.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Catherine S. Spina, MD, PhD contact

212-305-7406

css2190@cumc.columbia.edu

United States1 site, 1 recruiting
  • Columbia University Irving Medical Center / NewYork-Presbyterian Hospital

    New York, New York, 10032

    Research Nurse Navigator, 212-342-5162, cancerclinicaltrials@cumc.columbia.edu

    Catherine S. Spina, MD, PhD

    Recruiting

Other trials in United States

About this study

Official title: Phase II Single Arm Study Testing SBRT, Adenosine Signaling Modulation (AB680, AB928), and Immune Checkpoint Inhibition (AB122) for Men With Hormone Sensitive Oligometastatic Prostate Cancer

This study will evaluate the safety and effectiveness of a combination of study drugs including zimberelimab, etrumadenant, and quemliclustat in combination with metastasis-directed irradiation in men with hormone sensitive oligometastatic prostate cancer.

The study aims to test the hypothesis that targeted inhibition of the adenosine signaling axis (quemliclustat (CD73 antagonist) + etrumadenant (A2AR/A2BR antagonist)) and immune checkpoint inhibition (zimberelimab, α-PD-1) in combination with metastasis-directed stereotactic body radiation therapy (SBRT) will improve local control, progression-free survival (PFS), and hormone therapy-free survival and mitigate immunosuppressive changes to the tumor microenvironment (TME), compared to SBRT alone.

Read the detailed description

The optimal therapeutic approach to men with oligometastatic (1-3 or 1-5 sites of metastatic disease) prostate cancer is ever more important as advanced imaging technologies are becoming standard of care, providing clinicians with the tools to accurately diagnose and localize oligometastatic prostate cancer. Hence, methods to improve the local curative potential of stereotactic body radiation therapy (SBRT) is a timely and important opportunity. In addition, previous data suggest that the adenosine A2A pathway may be a particularly attractive avenue for intervention in the context of radiation, thus influencing multiple suppressive populations within the tumor microenvironment (TME).

Immunotherapy based on the PD-1/PD-L1 signaling axis is a mainstay of therapy across multiple types of malignancies. This study aims to evaluate the effectiveness of a PD-1 inhibitor (zimberelimab) in combination with a selective dual antagonist of A2aR and A2bR (etrumadenant) and an anti-CD73 (quemliclustat). Immune checkpoint inhibitors and targeted inhibitors of the adenosine signaling axis modulate the TME and aspects of the systemic immune system to overcome tumor-induced immune suppression and improve responses to therapy.

This study aims to determine the effect of etrumadenant, quemliclustat and zimberelimab [experimental] when given with ablative radiation (SBRT)[standard of care] on the oligoprogressive disease (hormone sensitive oligometastatic prostate cancer), defined by being free from radiographic progression of irradiated target metastases and PSA (prostate surface antigen) response at 6 months. PSA response, local control, progression-free survival (PFS), treatment response, ADT-free survival, time-to-pain, and safety and tolerability will also be measured. By employing a Simon Two-Stage design, the trial will test whether or not etrumadenant + quemliclustat and zimberelimab combined with ablative radiation (SBRT) will improve PFS compared to SBRT alone (ORIOLE).

Being tested
Quemliclustat, Etrumadenant, Zimberelimab, Stereotactic Body Radiation Therapy
Keywords
Adenosine Signaling, AB680, AB928, AB122, Quemliclustatm, Etrumadenant, Zimberelimab

What participants receive

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

  • QuemliclustatDrug

    Also called AB680

    100mg IV once every two weeks

  • EtrumadenantDrug

    Also called AB928

    150 mg orally (PO) once a day (QD)

  • ZimberelimabDrug

    Also called AB122

    240 mg IV once every two weeks starting within 1 week of completing metastasis-directed SBRT

  • Stereotactic Body Radiation TherapyRadiation

    Also called SBRT

    Standard of care metastasis-directed hypofractionated radiotherapy treatment starting 4 weeks (+/- 1 week) of starting Etrumadenant and Quemliclustat

Study groups in NCT05915442
Study groupRoleWhat they receive
Treatment with quemliclustatm, etrumadenant, zimberelimab and SBRTExperimentalSubjects with metastatic prostate cancer will receive quemliclustat and etrumadenant for 4 weeks prior to metastasis-directed SBRT (Stereotactic Body Radiation Therapy). Within one week of completing SBRT, subjects will also start zimberelimab.
Receives: Drug: Quemliclustat; Drug: Etrumadenant; Drug: Zimberelimab; Radiation: Stereotactic Body Radiation Therapy

What is being measured

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

  1. Biochemical recurrence-free survival at 12-months

    Biochemical recurrence is defined as a 0.2 ng/ml increase in PSA above the post-SBRT PSA nadir. Patient will be followed until biochemical recurrence, death, or end of study, whichever comes first. Patients who are alive and biochemical recurrence free will be censored at the last PSA measurement date.

    Measured: 12 months

Secondary outcomes (7)
  1. Biochemical recurrence-free survival at 6-months

    To estimate the proportion of men treated with quemliclustat + etrumadenant + zimberelimab + SBRT who are free from biochemical failure at 6-months.

    Measured: 6 months

  2. To estimate treatment response based on CT at 6-months

    Report the percentage of patients with PD, CR, PR, and SD based on CT imaging among patients treated with oligometastasis-directed SBRT + quemliclustat + etrumadenant + zimberelimab at 6-months.

    Measured: 6 months

  3. To estimate treatment response based on nuclear bone scan at 6-months.

    Report the percentage of patients with PD, CR, PR, and SD based on nuclear bone scan among patients treated with oligometastasis-directed SBRT + quemliclustat + etrumadenant + zimberelimab at 6-months.

    Measured: 6-months

  4. To estimate treatment response based on PSMA-PET scan at 6-months.

    Report the percentage of patients with PD, CR, PR, and SD based on PSMA-PET scan among patients treated with oligometastasis-directed SBRT + quemliclustat + etrumadenant + zimberelimab at 6-months.

    Measured: 6-months

  5. Proportion of patients who start ADT.

    Measured: 6, 12 months and 3 years.

  6. To estimate pain over time.

    Quantify pain using a numeric 10-point scale using the Brief Pain Inventory (BPI) every 12 weeks from time of enrollment.

    Measured: Every 12 weeks for 3.5 years

  7. To assess the safety and tolerability of oligometastasis-directed SBRT + quemliclustat + etrumadenant + zimberelimab.

    Adverse events graded by CTCAE v5.0.

    Measured: 6, 12 months and 3 years

Timeline

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

  1. First posted23 Jun 2023
  2. Study start1 Jul 2023
  3. Primary completion1 Dec 2026 (estimated)
  4. Study completionDec 2028 (estimated)

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 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Sequential
Model description
Simon Two-Stage design: In the first stage, trial will enroll 14 patients. If two or more patients show progression at 6 months, the study is terminated at the end of stage I. However, if 13 of the 14 remain free from progressive disease at 6 months, then the study would move onto the second stage. In this stage, n=9 additional patients will be enrolled, for a total of 23 total. If 21 of the 23 patients remain progression-free at 6 months, then the null hypothesis is rejected, and we will consider the addition of quemliclustat, etrumadenant, and zimberelimab to SBRT worthy of further study.
Masking
None (open label)
Enrolment
23 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05915442
Sponsor's protocol ID
AAAU4675
Acronym
SBRT-AMICO
Status last verified
May 2025
First submitted
7 Jun 2023
Last updated
20 May 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Quemliclustat, Etrumadenant and Zimberelimab in people with Oligometastatic Prostate Cancer, run by Catherine Spina at 1 site in United States.

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 29 inclusion and 28 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: looking for participants now, as of the sponsor's last update on 20 May 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

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

Contact Catherine S. Spina, MD, PhD (212-305-7406, css2190@cumc.columbia.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Biochemical recurrence-free survival at 12-months (time frame: 12 months). 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 20 May 2025.

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