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Androgen Biosynthesis Inhibitor

Niraparib + Abiraterone Acetate + Prednisone for Metastatic Prostate Cancer (MAGNITUDE Trial)

Phase 3
Waitlist Available
Research Sponsored by Janssen Research & Development, LLC
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Metastatic prostate cancer in the setting of castrate levels of testosterone less than or equal to (<=) 50 nanogram per deciliter (ng/dL) on a gonadotropin releasing hormone analog (GnRHa) or bilateral orchiectomy
Cohort 1: positive for HRR gene alteration
Timeline
Screening 3 weeks
Treatment Varies
Follow Up up to 97 months
Awards & highlights

MAGNITUDE Trial Summary

This trial will compare the effect of adding niraparib to abiraterone acetate plus prednisone, versus abiraterone acetate plus prednisone and placebo, in men with metastatic castration-resistant prostate cancer.

Who is the study for?
This trial is for men with metastatic prostate cancer who have specific genetic changes (HRR gene alteration), haven't had certain cancers or treatments like PARP inhibitors, and are on hormone therapy to keep testosterone low. They should not have symptomatic brain tumors or blood disorders like MDS/AML.Check my eligibility
What is being tested?
The study tests the effectiveness of Niraparib combined with Abiraterone Acetate and Prednisone against just Abiraterone Acetate and Prednisone in treating metastatic prostate cancer. Participants will be randomly assigned to either receive the combination treatment or the standard treatment plus a placebo.See study design
What are the potential side effects?
Possible side effects include fatigue, nausea, anemia (low red blood cell count), potential heart issues, shortness of breath, and other symptoms that can vary based on individual health conditions.

MAGNITUDE Trial Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
Select...
My prostate cancer has spread, and my testosterone is very low due to treatment or surgery.
Select...
My cancer has a positive HRR gene alteration.
Select...
My cancer has spread, confirmed by a bone scan or CT/MRI.
Select...
My cancer has a specific gene change identified by a special test.
Select...
My cancer does not have a specific gene alteration (DRD negative).
Select...
My worst pain in the last 24 hours was mild.

MAGNITUDE Trial Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~up to 97 months
This trial's timeline: 3 weeks for screening, Varies for treatment, and up to 97 months for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
Cohort 1: Radiographic Progression-Free Survival (rPFS) as Assessed by Blinded Independent Central Review (BICR)
Secondary outcome measures
Cohort 1: Overall Survival (OS)
Cohort 1: Time to Initiation of Cytotoxic Chemotherapy
Cohort 1: Time to Symptomatic Progression
+5 more

Side effects data

From 2022 Phase 2 trial • 37 Patients • NCT03207347
74%
Fatigue
52%
Nausea
39%
Constipation
39%
Anorexia
30%
Anemia
30%
Alkaline phosphatase increased
26%
Weight loss
22%
Dyspnea
22%
Abdominal pain
22%
Dizziness
22%
Insomnia
17%
Headache
17%
Platelet count decreased
17%
Mucositis oral
17%
Creatinine increased
13%
Sinus tachycardia
13%
Vomiting
13%
Rash maculo-papular
13%
Aspartate aminotransferase increased
9%
Anxiety
9%
Alanine aminotransferase increased
9%
Urinary tract infection
9%
Dehydration
9%
Back pain
9%
Blood bilirubin increased
9%
Dry mouth
9%
Cough
9%
Hypertension
9%
Non-cardiac chest pain
4%
Esophageal ulcer
4%
Skin tear
4%
Diarrhea
4%
Edema limbs
4%
Leukocytosis
4%
Syncope
4%
Hypotension
4%
Head injury
4%
Oral petechia
4%
Sinus pain
4%
Unknown infection
4%
Ascites
4%
Bruising
4%
Itchy eyes
4%
Flu like symptoms
4%
Hoarseness
4%
Peripheral sensory neuropathy
4%
Sore throat
4%
Upper respiratory infection
4%
Neutrophil count decreased
4%
Lung infection
4%
White blood cell decreased
4%
Depression
4%
Hyponatremia
4%
Hypokalemia
4%
Postnasal drip
4%
Hyperkalemia
4%
Bloating
4%
Hot flashes
4%
Hyperglycemia
4%
Hematuria
4%
Tremor
100%
80%
60%
40%
20%
0%
Study treatment Arm
Cohort A
Cohort B

MAGNITUDE Trial Design

3Treatment groups
Experimental Treatment
Group I: Cohort 3 (Open-label): Participants with mCRPCExperimental Treatment2 Interventions
Participants with mCRPC will receive a new formulation of niraparib 200 mg and AA 1000 mg tablets plus prednisone 10 mg.
Group II: Cohort 2: Participants with mCRPC and No HRR Gene AlterationExperimental Treatment4 Interventions
Participants with L1 mCRPC and no HRR Gene alteration will receive combination of niraparib 200 mg or matching placebo and AA 1000 mg plus prednisone 10 mg. In the OLE phase participants earlier receiving the combination of niraparib and AAP may continue to receive open-label combination of niraparib 200 mg and AA 1000 mg plus prednisone 10 mg and those receiving placebo and AAP may cross over depending on the outcome of study to receive open-label combination of niraparib 200 mg and AA 1000 mg plus prednisone 10 mg.
Group III: Cohort 1: Participants with mCRPC and HRR Gene AlterationExperimental Treatment4 Interventions
Participants with L1 metastatic castration-resistant prostate cancer (mCRPC) and homologous recombination repair (HRR) gene alteration will receive combination of niraparib 200 milligrams (mg) or matching placebo and abiraterone acetate (AA) 1000 mg plus prednisone 10 mg. In the open label extension (OLE) phase participants earlier receiving the combination of niraparib and AAP may continue to receive open-label combination of niraparib 200 mg and AA 1000 mg plus prednisone 10 mg and those receiving placebo and AAP may cross over depending on the outcome of study to receive open-label combination of niraparib 200 mg and AA 1000 mg plus prednisone 10 mg.
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
Niraparib
2018
Completed Phase 4
~1540
Abiraterone Acetate
2015
Completed Phase 4
~1880
Prednisone
2014
Completed Phase 4
~2370
Placebo
1995
Completed Phase 3
~2670

Find a Location

Who is running the clinical trial?

Janssen Research & Development, LLCLead Sponsor
975 Previous Clinical Trials
6,383,543 Total Patients Enrolled
8 Trials studying Prostate Cancer
2,178 Patients Enrolled for Prostate Cancer
Janssen Research & Development, LLC Clinical TrialStudy DirectorJanssen Research & Development, LLC
745 Previous Clinical Trials
3,959,140 Total Patients Enrolled
7 Trials studying Prostate Cancer
2,688 Patients Enrolled for Prostate Cancer

Media Library

Prostate Cancer Clinical Trial 2023: Abiraterone Acetate Highlights & Side Effects. Trial Name: NCT03748641 — Phase 3
Abiraterone Acetate (Androgen Biosynthesis Inhibitor) 2023 Treatment Timeline for Medical Study. Trial Name: NCT03748641 — Phase 3
Prostate Cancer Research Study Groups: Cohort 1: Participants with mCRPC and HRR Gene Alteration, Cohort 2: Participants with mCRPC and No HRR Gene Alteration, Cohort 3 (Open-label): Participants with mCRPC

Frequently Asked Questions

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

What condition is Niraparib most often given to treat?

"Niraparib is most often used to treat thyroiditis, but it can also be helpful in managing ulcerative colitis, certain types of cancer, and varicella-zoster virus acute retinal necrosis."

Answered by AI

Has the FDA cleared Niraparib for use?

"Niraparib's safety is well-documented, as this drug has completed Phase 3 clinical trials. These multiple rounds of testing confirm both efficacy and a strong safety profile."

Answered by AI

Are recruitment efforts still underway for this research project?

"Unfortunately, this study is not currently looking for patients. The trial was posted on January 25th, 2019 and updated October 25th, 2022. There are 1,755 other trials that may be of interest to you."

Answered by AI

Is there any precedent for prescribing Niraparib?

"There are 466 Niraparib trials currently underway worldwide, with 111 of them being in the final stage of testing. The majority of these trials take place in Duarte, California; however, there are 18846 locations running studies for this treatment."

Answered by AI

How many people will be participating in this research?

"Recruitment for this study has concluded. The trial was initially posted on 1/25/2019 and updated for the last time on 10/25/2022. There are 1289 other trials actively recruiting patients with castration resistant prostatic cancer and 466 studies seeking participants for Niraparib."

Answered by AI

How many clinical sites are participating in this research study?

"Currently, there are 19 sites conducting this study. They are situated in places such as Salt Lake City, Bala-Cynwyd, Riverside and other 16 cities. To limit travel time and stress, please choose the location nearest you."

Answered by AI
~122 spots leftby Apr 2025