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Prostate CancerPhase 2NCT02452008

Study of TGF-β Receptor Inhibitor Galunisertib (LY2157299) and Enzalutamide in Metastatic Castration-resistant Prostate Cancer

A Phase 2 study testing Enzalutamide and LY2157299 in people with Prostate Cancer, run by Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins at 4 sites in United States.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

The primary objective of this study is to compare the progression free survival (PFS) of patients with metastatic castration-resistant prostate cancer treated with enzalutamide in combination with LY2157299 (Arm 1) versus enzalutamide alone (Arm 2). Read more about this study

Who is it for?
Ages 18 to 100 years, men only
Conditions the study is for
Prostate Cancer
What is being tested?
Enzalutamide and LY2157299
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
4 sitesUnited States
Study dates
3 May 2016to Dec 2026
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 100 years
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Have metastatic castration-resistant prostate cancer
  • Must have had prior abiraterone treatment
  • Life expectancy of greater than 3 months
  • Eastern Cooperative Oncology Group (ECOG) performance status 0 or 2
  • Age ≥18 years
  • Have measurable disease
Show all 11Show fewer
  • Patients acceptance to have a tumor biopsy of an accessible lesion at baseline and on treatment if the lesion can be biopsied with acceptable clinical risk (as judged by the investigator).
  • Ability to take oral medication
  • Patients must have adequate organ and marrow function defined by study-specified laboratory tests
  • Must use acceptable form of birth control while on study
  • Ability to understand and willingness to sign a written informed consent document

Who cannot join

  • Known history or evidence of brain metastases
  • Prior chemotherapy for metastatic disease in castration-resistant prostate cancer
  • Had surgery within 4 weeks prior to the first dose of study drug
  • Had radiation, biological, or other investigational cancer therapy within 2 weeks prior to the first dose of study drug
  • Had second-line hormonal therapy within 2 weeks prior to the first dose of study drug
  • Systemic steroids within 1 weeks prior to the first dose of study drug
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  • Had prior enzalutamide, ARN-509, or galeterone therapy
  • Have moderate or severe cardiovascular disease
  • Have a history of a seizure
  • Have uncontrolled intercurrent illness, including but not limited to ongoing or active infection, systematic congestive heart failure, unstable angina pectoris, cardiac arrhythmia or psychiatric condition that would limit compliance with study requirements
  • Have a history of any autoimmune disease:inflammatory bowel disease, (including ulcerative colitis and Crohn's Disease), rheumatoid arthritis, systemic progressive sclerosis (scleroderma), systemic lupus erythmatosus (SLE) autoimmune vasculitis (e.g., Wegener's Granulomatosis), central nervous system (CNS) or motor neuropathy considered to be of autoimmune origin (e.g., Guillian-Barre Syndrome, Myasthenia Gravis, Multiple Sclerosis)
  • Have known history of infection with HIV, hepatitis B, or hepatitis C

Trial locations and contacts

4 sites in 1 country.

United States4 sites
  • Johns Hopkins University

    Baltimore, Maryland, 21205

  • Northwestern University

    Chicago, Illinois, 60611

  • University of Chicago

    Chicago, Illinois, 60637

  • Sibley Memorial Hospital

    Washington D.C., District of Columbia, 20016

Other trials in United States

About this study

Official title: Overcoming Drug Resistance in Metastatic Castration-resistant Prostate Cancer With Novel Combination of TGF-β Receptor Inhibitor LY2157299 and Enzalutamide: a Randomized Multi-site Phase II Study

The primary objective of this study is to compare the progression free survival (PFS) of patients with metastatic castration-resistant prostate cancer treated with enzalutamide in combination with LY2157299 (Arm 1) versus enzalutamide alone (Arm 2).

Conditions
Prostate Cancer
Being tested
Enzalutamide, LY2157299
Keywords
metastatic castration-resistant prostate cancer, enzalutamide, LY2157299, TGF-β receptor inhibitor
Medical subject headings
Prostatic Neoplasms

What participants receive

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

  • EnzalutamideDrug

    Also called XTANDI

    160mg of enzalutamide is administered orally once a day on days 1-28 of each cycle.

  • LY2157299Drug

    Also called TGF-β receptor inhibitor

    150 mg of LY2157299 is administered orally twice a day on days 1-14 of each cycle.

Study groups in NCT02452008
Study groupRoleWhat they receive
Arm 1: Enzalutamide with LY2157299ExperimentalNot described
Receives: Drug: Enzalutamide; Drug: LY2157299
Arm 2: Enzalutamide aloneExperimentalNot described
Receives: Drug: Enzalutamide

What is being measured

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

  1. Progression Free Survival in Patients With Metastatic Castration-resistant Prostate Cancer Treated With Enzalutamide and LY2157299 (Arm 1) Versus Enzalutamide Alone (Arm 2) Using RECIST 1.1 Criteria.

    Measured: 8 years

Secondary outcomes (3)
  1. Number of Participants With (PSA50) Response

    PSA50 response in patients with metastatic castration-resistant prostate cancer treated with enzalutamide and LY2157299

    Measured: 4 years

  2. Overall Survival (OS) in Patients With Metastatic Castration-resistant Prostate Cancer Treated With Enzalutamide and LY2157299 (Arm 1) Versus Enzalutamide Alone (Arm 2).

    Measured: 8 years

  3. Number of Patients Experiencing Treatment-related Toxicities

    Measured: 8 years

Timeline

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

  1. First posted22 May 2015 (estimated)
  2. Study start3 May 2016
  3. Primary completion8 Dec 2025
  4. Study completionDec 2026 (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
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02452008
Sponsor's protocol ID
J1557
Other IDs
IRB00065746
Status last verified
Nov 2026
First submitted
20 May 2015
Last updated
6 Nov 2026
Data monitoring committee
No

Publications

  • Rodriguez Y, Unno K, Truica MI, Chalmers ZR, Yoo YA, Vatapalli R, Sagar V, Yu J, Lysy B, Hussain M, Han H, Abdulkadir SA. A Genome-Wide CRISPR Activation Screen Identifies PRRX2 as a Regulator of Enzalutamide Resistance in Prostate Cancer. Cancer Res. 2022 Jun 6;82(11):2110-2123. doi: 10.1158/0008-5472.CAN-21-3565.

    PubMed 35405009

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Enzalutamide and LY2157299 in people with Prostate Cancer, run by Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins at 4 sites 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 11 inclusion and 12 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: under way, not looking for participants, as of the sponsor's last update on 6 Nov 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites 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?

Yes. Results are posted in the registry (first posted 6 Nov 2026). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Progression Free Survival in Patients With Metastatic Castration-resistant Prostate Cancer Treated With Enzalutamide and LY2157299 (Arm 1) Versus Enzalutamide Alone (Arm 2) Using RECIST 1.1 Criteria. (time frame: 8 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02452008, which also lists 1 linked publication.

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 6 Nov 2026.

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