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Prostate CancerPhase 1NCT01792687

Safety, Tolerability, Pharmacokinetics, and Preliminary Anti-tumor Activity of Ascending Doses of ARN 509 in Combination With Abiraterone Acetate

A Phase 1 study testing ARN-509, Abiraterone acetate and Prednisone in people with Prostate Cancer, run by Aragon Pharmaceuticals, Inc. at 1 site in United States.

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 a Phase Ib, open label study of ARN-509 administered in combination with abiraterone acetate and prednisone in patients with metastatic castration-resistant prostate cancer. Read more about this study

Who is it for?
Ages 18 years and older, men only
Conditions the study is for
Prostate Cancer
What is being tested?
ARN-509, Abiraterone acetate and Prednisone
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
6 participants
Where
1 siteUnited States
Study dates
5 Feb 2013to 13 Feb 2024
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

  • Participants must have histologically confirmed prostate cancer.
  • Radiographic evidence of metastatic disease, detectable by bone scan, CT scan, or MRI. At least one site of metastatic disease must be amenable to needle biopsy.
  • Castrate levels of testosterone (testosterone < 50 ng/dL) on androgen deprivation therapy (ADT). Patients who have not undergone orchiectomy will continue gonadotropin releasing hormone (GnRH) agonist or antagonist therapy.
  • Age > 18 years
  • ECOG performance status < 2
  • Evidence of disease progression on ADT. Patients must have two serial rises in PSA from nadir, with at least 1 week between PSA measurements, with a minimum PSA of 2 ng/mL, OR patients must have radiographic evidence of progression. Nadir is defined as the lowest PSA value after beginning the most recent therapy for metastatic CRPC.

Who cannot join

  • Participants who have had chemotherapy or radiotherapy within 4 weeks prior to entering the study or those who have not recovered from adverse events due to agents administered more than 4 weeks earlier.
  • Participants may not be receiving any other study agents.
  • Participants with known brain metastases
  • Any history of seizure or a condition that may pre-dispose to seizure (e.g., prior stroke within 1 year prior to randomization, brain arteriovenous malformation, Schwannoma, meningioma, or other benign CNS or meningeal disease which may require treatment with surgery or radiation therapy).
  • Concurrent therapy with medications known to have seizure potential (those must have been discontinued or substituted for at least 28 days prior to starting the trial)
  • Concurrent treatment with strong CYP3A4 inhibitors (e.g., ketoconazole, itraconazole, clarithromycin, atazanavir, indinavir, nefazodone, nelfinavir, ritonavir, saquinavir, telithromycin, voriconazole, grapefruit juice) or inducers (e.g., dexamethasone, phenytoin, carbamazepine, rifampin, rifabutin, rifapentin, phenobarbital, St. John's Wort)
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  • History of pituitary dysfunction
  • History of adrenal dysfunction
  • Requirement for steroid use greater than 10 mg of prednisone daily
  • History of gastrointestinal disorder or prior extensive gastrointestinal surgery that may interfere with sufficient absorption of the study compounds.
  • Prior history of CYP17 inhibitors (e.g., abiraterone acetate, TAK-700) and second-generation anti-androgen (e.g., MDV3100)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Study site

    Boston, Massachusetts

Other trials in United States

About this study

Official title: Phase Ib, Open-label Study to Assess the Safety, Tolerability, Pharmacokinetics, and Preliminary Anti-tumor Activity of Ascending Doses of ARN-509 in Combination With Abiraterone Acetate in Patients With Metastatic Castrate Resistant Prostate Cancer (CRPC)

This is a Phase Ib, open label study of ARN-509 administered in combination with abiraterone acetate and prednisone in patients with metastatic castration-resistant prostate cancer.

Conditions
Prostate Cancer
Being tested
ARN-509, Abiraterone acetate, Prednisone
Keywords
Metastatic castrate resistant prostate cancer (CRPC)
Medical subject headings
Prostatic Neoplasms

What participants receive

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

  • ARN-509Drug

    Dose-escalation: 120 milligram (mg), 180 mg, 240 mg, oral, daily

  • Abiraterone acetateDrug

    1,000 mg, oral, daily

  • PrednisoneDrug

    5 mg, oral, daily

Study groups in NCT01792687
Study groupRoleWhat they receive
TreatmentExperimentalARN-509 when combined with the approved dose of abiraterone acetate (1,000 mg daily) plus prednisone (5 mg daily).
Receives: Drug: ARN-509; Drug: Abiraterone acetate; Drug: Prednisone

What is being measured

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

  1. Maximum Tolerated Dose (MTD) / Recommended Phase 2 dosage (RP2D)

    To determine the Maximum Tolerated Dosage (MTD)/ Recommended Phase 2 dosage (RP2D) of ARN-509 when administered in combination with abiraterone acetate.

    Measured: 12 months

Secondary outcomes (4)
  1. Pharmacokinetics

    To characterize the pharmacokinetics (PK) of abiraterone at steady-state prior to ARN-509 administration, and both abiraterone and ARN-509 at steady-state following combined dosing of both agents.

    Measured: 12 months

  2. Anti-tumor activity

    To perform preliminary assessment of the anti-tumor activity of ARN 509 in combination with abiraterone acetate by evaluation of radiographic tumor response by modified RECIST criteria.

    Measured: 12 months

  3. PSA Response

    To assess the magnitude and duration of PSA response in patients receiving ARN 509 plus abiraterone acetate.

    Measured: 12 months

  4. Treatment Response/Resistance

    To analyze potential mechanisms of response and resistance to treatment with ARN-509 plus abiraterone acetate in tissue obtained from serial biopsies of CRPC.

    Measured: 12 months

Timeline

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

  1. First posted15 Feb 2013 (estimated)
  2. Study start5 Feb 2013
  3. Primary completion10 May 2014
  4. Study completion13 Feb 2024

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
NCT01792687
Sponsor's protocol ID
CR103306
Other IDs
12-338, ARN-509-004
Status last verified
Mar 2025
First submitted
12 Feb 2013
Last updated
4 Mar 2025
Results posted
No
Data monitoring committee
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing ARN-509, Abiraterone acetate and Prednisone in people with Prostate Cancer, run by Aragon Pharmaceuticals, Inc. 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 6 inclusion and 11 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 4 Mar 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 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?

Maximum Tolerated Dose (MTD) / Recommended Phase 2 dosage (RP2D) (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 4 Mar 2025.

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