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Androgen-Independent Prostatic CancerPhase 2NCT05848011

A Study of Lorigerlimab With Docetaxel or Docetaxel Alone in Participants With Metastatic Castration-Resistant Prostate Cancer

A Phase 2 study testing lorigerlimab, docetaxel and Prednisone in people with Androgen-Independent Prostatic Cancer and Androgen-Independent Prostatic Neoplasms, run by MacroGenics at 61 sites in 10 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

The purpose of this study is to determine whether the amount of time before disease progression can be prolonged in participants with metastatic castration-resistant prostate cancer (MCRPC) who receive lorigerlimab in addition to the standard of care (SOC) of docetaxel and prednisone. Read more about this study

Who is it for?
Ages 18 years and older, men only
What is being tested?
lorigerlimab, docetaxel and Prednisone
Could I receive a placebo?
No, everyone receives an active treatment
How many people
154 participants
Where
61 sitesin 10 countries
Study dates
28 Sep 2023to 16 Mar 2026
Phase
Phase 2
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

  • Metastatic castration-resistant adenocarcinoma of the prostate without evidence of neuroendocrine differentiation, signet cell, or small cell features.
  • Participants must have ≥ 1 metastatic (measurable or non-measurable per PCWG3) lesion.
  • Participant has prostate cancer progression at study entry based on PCWG3 criteria.
  • Participant shows evidence of disease progression after receiving at least 1 prior androgen receptor axis-targeted therapy (ARAT) regimen (e.g., abiraterone, enzalutamide, apalutamide, or darolutamide).
  • Patients with known history of documented breast cancer gene (BRCA) mutation (germline or somatic) must have received an approved poly ADP ribose polymerase (PARP) inhibitor regimen.
  • Participants must have adequate performance status, life expectancy and laboratory values.

Who cannot join

  • Any condition preventing participant's ability to receive, tolerate, or comply with the planned treatment or study procedures.
  • Received prior chemotherapy for mCRPC or checkpoint inhibitors for prostate cancer.
  • Current active or chronic infections.
  • Any clinically significant heart, lung, or gastrointestinal disorders.
  • Allergy to any of the study treatments or components of the study treatments.

Trial locations and contacts

61 sites in 10 countries.

61 sites in 10 countries

United States10 sites
  • Beth Israel Deaconess Medical Center

    Boston, Massachusetts, 02215

  • Dana-Farber Cancer Institute

    Boston, Massachusetts, 02215

  • University of Virginia Health System Cancer Center

    Charlottesville, Virginia, 22903

  • Nebraska Cancer Specialists

    Grand Island, Nebraska, 68803

  • MD Anderson Cancer Center

    Houston, Texas, 77030

  • United Medical Group

    Miami, Florida, 33135

  • Icahn School of Medicine at Mount Sinai

    New York, New York, 10029

  • Orlando Health Cancer Institute

    Orlando, Florida, 32806

  • SUNY Upstate Medical University

    Syracuse, New York, 13210

  • START Mountain Region

    West Valley City, Utah, 84119

Other trials in United States

France10 sites
  • Institut Bergonie

    Bordeaux

  • Clinique Victor Hugo

    Le Mans

  • Centre Léon Bérard

    Lyon

  • Centre Antoine Lacassagne

    Nice

  • Institut Mutualiste Montsouris

    Paris

  • Centre Hospitalier Quimper

    Quimper

  • CHP Saint Grégoire

    Saint-Grégoire

  • Hia Begin

    Saint-Mandé

  • Hopital Foch

    Suresnes

  • Institut Gustave Roussy

    Villejuif

Other trials in France

Spain10 sites
  • H U Germans Tries i Pujol

    Barcelona

  • Hospital Clínic de Barcelona

    Barcelona

  • Hospital del Mar

    Barcelona

  • Hospital Parc Tauli

    Barcelona

  • Hospital Sant Pau

    Barcelona

  • Institut Català d'Oncologia Hospitalet_ICO Hospitalet

    Barcelona

  • Vall d' Hebron Institute of Oncology (VHIO)

    Barcelona

  • Hospital 12 de octubre

    Madrid

  • Hospital Universitario Virgen del Rocio

    Seville

  • FIVO: Instituto Valenciano de Oncología

    Valencia

Other trials in Spain

Georgia8 sites
  • LTD High Tech Hosp Medcenter

    Batumi

  • First University Clinic TSMU

    Tbilisi

  • LTD Consilium Medulla

    Tbilisi

  • Ltd Gidmedi

    Tbilisi

  • LtD L.M.National Urology Center

    Tbilisi

  • LTD MMT Hospital

    Tbilisi

  • LTD Todua Clinic

    Tbilisi

  • Onc. Scient. Research Center

    Tbilisi

Other trials in Georgia

Poland7 sites
  • Przychodnia Lekarska KOMED

    Konin

  • Szpital Woj. im M Kopernika

    Koszalin

  • Pratia McM Kraków

    Krakow

  • Europejskie Centrum Zdrowia Otwock, Szpital im. Fryderyka Chopina

    Otwock

  • LuxMed Onkologia

    Warsaw

  • Medical Concierge

    Warsaw

  • Szpital Grochowski im. dr med. Rafała Masztaka Sp. z o.o., Oddział Chemioterapii

    Warsaw

Other trials in Poland

Australia4 sites
  • Concord Repatriation General Hospital

    Concord

  • Peter MacCallum Cancer Centre

    North Melbourne

  • North Shore Private Hospital

    St Leonards

  • Westmead Hospital

    Westmead

Other trials in Australia

Belgium4 sites
  • Cliniques universitaires Saint-Luc (CUSL), Brussels

    Brussels

  • UZ GENT

    Ghent

  • Centre Hospital de l'Ardenne

    Libramont

  • CHU de Liège

    Liège

Other trials in Belgium

United Kingdom4 sites
  • Churchill Hospital

    Headington

  • Charing Cross Hospital

    London

  • Royal Marsden Hospital

    Sutton

  • Musgrove Park Hospital

    Taunton

Other trials in United Kingdom

Bulgaria3 sites
  • MHAT Dr. Tota Venkova

    Gabrovo

  • Comprehensive Cancer Center

    Plovdiv

  • UMHAT Sv. Ivan Rilski

    Sofia

Other trials in Bulgaria

Puerto Rico1 site
  • Pan American Center for Oncology Trials, LLC

    Rio Piedras

Other trials in Puerto Rico

About this study

Official title: A Phase 2, Randomized, Open-Label, Study of Lorigerlimab With Docetaxel or Docetaxel Alone in Participants With Metastatic Castration-Resistant Prostate Cancer

The purpose of this study is to determine whether the amount of time before disease progression can be prolonged in participants with metastatic castration-resistant prostate cancer (MCRPC) who receive lorigerlimab in addition to the standard of care (SOC) of docetaxel and prednisone. About 150 participants with mCRPC will be enrolled. Participants will be randomized in a 2:1 ratio to receive lorigerlimab with docetaxel and prednisone (experimental arm) or docetaxel and prednisone alone (standard-of-care arm).

Lorigerlimab+docetaxel or docetaxel will be administered intravenously (IV) in clinic on Day 1 of each 3-week cycle. Prednisone will be administered orally twice daily. Lorigerlimab will be administered for up to 35 cycles. Docetaxel and prednisone will be administered up to 10 cycles until treatment discontinuation criteria are met. Participants will undergo regular testing for signs of disease progression using computed tomography (CT) scans, magnetic resonance imaging (MRI) and prostate-specific antigen (PSA) blood tests. Participants will be asked to complete questionnaires about their health and well-being. Routine examinations and blood tests will be performed and evaluated by the study doctor.

Participants who have disease progression standard-of-care arm have the option of continuing on the study to receive lorigerlimab monotherapy.

Being tested
lorigerlimab, docetaxel, Prednisone
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.

  • lorigerlimabBiological

    Also called MGD019

    Lorigerlimab is a DART® molecule that binds PD-1 and CTLA-4

  • docetaxelDrug

    Also called Taxotere®

    Docetaxel Injection is a cytotoxic anticancer drug approved to treat prostate cancer

  • PrednisoneDrug

    A corticosteroid drug approved for use with docetaxel in the treatment of prostate cancer

Study groups in NCT05848011
Study groupRoleWhat they receive
Lorigerlimab + Docetaxel and PrednisoneExperimentalLorigerlimab 6 mg/kg IV (up to 2 years) and docetaxel 75 mg/m^2 IV every 3 weeks (up to 7 months) and prednisone 5 mg orally twice daily (up to 7 months).
Receives: Biological: lorigerlimab; Drug: docetaxel; Drug: Prednisone
Standard of care docetaxel and prednisoneOtherDocetaxel 75 mg/m^2 IV every 3 weeks and prednisone 5 mg orally twice daily.(up to 7 months)
Receives: Drug: docetaxel; Drug: Prednisone

What is being measured

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

  1. Median radiographic progression free survival (rPFS) determined by investigator review.

    The rPFS is defined as the time from the date of randomization to the date of first documented PD per Prostate Cancer Working Group 3 (PCWG3) criteria or death from any cause, whichever occurs first.

    Measured: Every 9 weeks for the first year, followed by every 12 weeks for up to 3 more years

Secondary outcomes (21)
  1. Objective response rate (ORR) per PCWG3 criteria

    ORR is defined as the number of participants who have a best overall response of confirmed complete response (CR) or partial response (PR) without prior confirmed bone progression

    Measured: Every 9 weeks for the first year, followed by every 12 weeks for up to 3 more years

  2. Duration of response (DoR)

    DoR is the time from the date of initial tumor response (CR or PR) to the date of first disease progression or death from any cause, whichever occurs first.

    Measured: Every 9 weeks for the first year, then every 12 weeks for up to 4 years

  3. Time to response (TTR)

    TTR is defined as the time from the start of treatment to the first objective response (CR or PR).

    Measured: Every 9 weeks for the first year, followed by every 12 weeks for up to 3 more years

  4. PSA50 response rate

    PSA50 response is defined as a ≥ 50% decline in PSA from baseline with confirmation at least 3 weeks after the first documented reduction in PSA of ≥ 50%.

    Measured: Every 3 weeks up to 2 years, followed by every 12 weeks for up to 2 more years

  5. PSA90 response rate

    PSA90 response is defined as a ≥ 90% decline in PSA from baseline with confirmation at least 3 weeks after the first documented reduction in PSA of ≥ 90%.

    Measured: Every 3 weeks up to 2 years, followed by every 12 weeks for up to 2 more years

  6. Time to PSA progression

    Time to PSA progression is defined as the time from the date of randomization to the first documented PSA progression.

    Measured: Every 9 weeks for the first year, followed by every 12 weeks for up to 2 more years

  7. Duration of PSA response

    Duration of PSA response is defined as the time from the date of first PSA response to the earliest date of PSA progression.

    Measured: Every 3 weeks up to 2 years, followed by every 23 weeks for up to 2 more years.

  8. Overall survival (OS)

    OS is defined as the time from the date of randomization to the date of death from any cause.

    Measured: Throughout the study up to 4 years

  9. Time to First Symptomatic Skeletal Event (SSE)

    Time to first SSE is defined as the time from the date of randomization to the first occurrence of SSE from any cause.

    Measured: Throughout the study up to 4 years

  10. Time to pain progression using the BPI-sf questionnaire

    Time to pain progression is defined as the time interval from randomization to the first date a participant experiences pain progression. Higher scores indicate more severe pain.

    Measured: Every 9 weeks for the first year, followed by every 12 weeks for up to 2 more years

  11. Pain severity using the Brief Pain Index - short form (BPI-sf) questionnaire

    The BPI-sf pain severity score consists of 4 items that assess pain at its worst, least, average, and current pain intensity. The pain severity score is the average of the 4 item scores. Higher scores indicate more severe pain.

    Measured: Every 3 weeks up to 2 years

  12. Pain interference using the BPI-sf questionnaire

    The BPI-sf pain interference score includes 7 items: general activity, mood, walking ability, normal work, relations with other people, sleep, and enjoyment of life. The pain interference score is the average of the 7 interference items. Higher scores indicate more interference from pain in daily life.

    Measured: Every 3 weeks up to 2 years

  13. Functional Assessment of Cancer Therapy-Prostate (FACT-P) questionnaire

    The FACT-P consists of 27 items from the Functional Assessment of Cancer Therapy-General (FACT-G) that measure physical, social/family, emotional, and functional well-being and 12 items that compose the Prostate Cancer Subscale (PCS). Higher scores indicate greater impact of prostate cancer on daily life.

    Measured: Every 3 weeks up to 2 years

  14. Description of types of adverse events (AEs) between treatment groups.

    Number of participants with adverse events (AEs), serious adverse events (SAEs), and AEs leading to study treatment discontinuation

    Measured: Throughout treatment up to 27 months

  15. Lorigerlimab maximum concentration or concentration at the end of infusion (Cmax)

    The highest measured concentration of lorigerlimab in the bloodstream.

    Measured: Every 21-day cycle throughout the study, for an average of 1 year.

  16. Lorigerlimab area under the concentration time curve (AUC)

    AUC is the total amount of lorigerlimab in bloodstream after drug administration

    Measured: Every 21-day cycle throughout the study, for an average of 1 year.

  17. Trough drug concentration (Ctrough or Cmin)

    Trough concentration is the concentration measured before a subsequent dose of lorigerlimab

    Measured: Every 21-day cycle throughout the study, for an average of 1 year.

  18. Clearance (CL)

    Drug clearance is the amount of drug removed from the bloodstream by the body per unit of time

    Measured: Every 21-day cycle throughout the study, for an average of 1 year.

  19. Volume of distribution (Vz)

    The volume of distribution is related to how much drug is distributed to body tissues, or remains in the bloodstream.

    Measured: Every 21-day cycle throughout the study, for an average of 1 year.

  20. Terminal half-life

    Terminal elimination half-life is the time it takes for the concentration of the drug in plasma or serum to be reduced by 50%

    Measured: Every 21-day cycle throughout the study, for an average of 1 year.

  21. Number of participants who develop anti-drug antibodies

    Measured: Throughout the study, up to 2 years

Timeline

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

  1. First posted8 May 2023
  2. Study start28 Sep 2023
  3. Primary completion19 Feb 2026
  4. Study completion16 Mar 2026

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
154 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05848011
Sponsor's protocol ID
CP-MGD019-02
Status last verified
May 2026
First submitted
17 Apr 2023
Last updated
22 May 2026
Results posted
No
Data monitoring committee
No
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 lorigerlimab, docetaxel and Prednisone in people with Androgen-Independent Prostatic Cancer and Androgen-Independent Prostatic Neoplasms, run by MacroGenics at 61 sites in 10 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 6 inclusion and 5 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 22 May 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 61 sites in United States, France, Spain, Georgia, Poland and 5 more countries. 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?

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?

Median radiographic progression free survival (rPFS) determined by investigator review. (time frame: Every 9 weeks for the first year, followed by every 12 weeks for up to 3 more years). 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 22 May 2026.

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