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NCT04382898: PRO-MERIT

PRO-MERIT (Prostate Cancer Messenger RNA Immunotherapy)

Terminated Phase 1, PHASE2 Results posted Last updated 20 March 2025
What this trial tests

Phase 1, PHASE2 trial testing BNT112 in Prostate Cancer in 75 participants. Terminated before completion.

Timeline
19 December 2019
Primary endpoint
23 January 2024
23 January 2024

Quick facts

Lead sponsorBioNTech SE
PhasePhase 1, PHASE2
StatusTerminated
Study typeINTERVENTIONAL
Allocationrandomized
Designsequential
Maskingnone
Primary purposetreatment
Enrollment75
Start date19 December 2019
Primary completion23 January 2024
Estimated completion23 January 2024
Sites22 locations across United Kingdom, United States, Germany, Hungary

Drugs / interventions tested

Conditions studied

Sponsor

BioNTech SE — full company profile →

Who can join

18 and older, male only, with Prostate Cancer. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Part 1: Number of Participants With Dose Limiting Toxicities (DLTs) Primary · Cycle 1 (21 days)

DLT criteria were defined as following: any treatment-emergent adverse events (TEAE) of Grade 5 intensity; hematological toxicities (Grade 3 and 4 febrile neutropenia, Grade 4 thrombocytopenia, Grade 3 and 4 hemorrhage associated with thrombocytopenia of Grade greater than or equal to \[\>=\] 3, Grade 4 anemia); and non-hematological toxicities (Grade 4 cytokine release syndrome \[CRS\], Grade 3 CRS which has not improved to Grade 1 or resolved within 48 hours; any Grade \>=3 non-hematological TEAE at least possibly related which occurs during the first BNT112 cancer vaccine treatment cycle).

GroupValue95% CI
Part 1 (mCRPC): BNT1122
Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs and TEAEs Related to Trial Procedure Primary · From Baseline up to 30 days after the last dose of BNT112 (for Part 1 and Part 2 Arms 1b and 3) or up to 90 days after the last dose of cemiplimab (for Part 2, Arm 1a and Arm 2) (up to 4 years and 1 month)

TEAE: any adverse event (AE) with an onset date on or after the first administration of investigational medicinal product (IMP) or worsened after first administration of IMP. AEs with an onset date more than 30 days after last dose of BNT112 or 90 days after last dose of cemiplimab (for Part 2, Arm 1a and Arm 2) were only considered as TEAEs if assessed as related to IMP by the investigator. Serious adverse event (SAE): any untoward medical occurrence that, at any dose: resulted in death; was life-threatening; required inpatient hospitalization or prolongation of existing hospitalization; resu

TEAEs
GroupValue95% CI
Part 1 (mCRPC): BNT1128
Part 2 (mCRPC): Arm 1a: BNT112 + Cemiplimab28
Part 2 (mCRPC): Arm 1b: BNT11226
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab5
Part 2 (LPC): Arm 3: BNT1126
Serious TEAE
GroupValue95% CI
Part 1 (mCRPC): BNT1125
Part 2 (mCRPC): Arm 1a: BNT112 + Cemiplimab5
Part 2 (mCRPC): Arm 1b: BNT1129
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab2
Part 2 (LPC): Arm 3: BNT1122
Grade >= 3 TEAEs
GroupValue95% CI
Part 1 (mCRPC): BNT1127
Part 2 (mCRPC): Arm 1a: BNT112 + Cemiplimab15
Part 2 (mCRPC): Arm 1b: BNT11215
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab1
Part 2 (LPC): Arm 3: BNT1124
Grade 5 TEAEs
GroupValue95% CI
Part 1 (mCRPC): BNT1122
Part 2 (mCRPC): Arm 1a: BNT112 + Cemiplimab0
Part 2 (mCRPC): Arm 1b: BNT1121
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab0
Part 2 (LPC): Arm 3: BNT1120
TEAEs related to trial procedure
GroupValue95% CI
Part 1 (mCRPC): BNT1121
Part 2 (mCRPC): Arm 1a: BNT112 + Cemiplimab1
Part 2 (mCRPC): Arm 1b: BNT1120
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab1
Part 2 (LPC): Arm 3: BNT1122
Part 2 Arm 1a: Objective Response Rate (ORR) Primary · From start of treatment up to 46 weeks

ORR was defined as the percentage of participants with a complete response (CR) or partial response (PR) as per Prostate Cancer Working Group 3 (PCWG3) criteria as determined by the investigator. Participants not meeting the criteria for CR or PR, including those without any post-baseline tumor assessments, were considered as non-responders. CR was defined as the disappearance of all target lesions, with a reduction in short axis to \<10 mm in any pathological lymph nodes and no new lesions. PR was defined as 30% decrease in the sum of the longest diameter of target lesions.

GroupValue95% CI
Part 2 (mCRPC): Arm 1a: BNT112 + Cemiplimab00.0 – 12.8
Number of Participants Reporting Change From Baseline in Prostate-specific Antigen (PSA) Levels Secondary · Day8 (Cycles1&2 only), Day1 Cycle 2 & Day 15 (Cycles1,2 & 8 only) (each cycle of 21-days), & EOT (30 days after last dose of BNT112 [Part 1 & Part 2 Arms 1b & 3] or 90 days after last dose of cemiplimab [Part 2, Arm 1a & Arm 2] [up to 4 years & 1 months])

Participants blood samples were tested for levels of PSA to track the progression of prostate cancer. PSA decline categories of No decline, 0 to 25%, \>25% to 50%, and \>50% compared to baseline during treatment according to PCWG3 (as reported by the investigator) are reported in this outcome measure. EOT in the timeframe below refers to End of treatment.

Cycle 1 Day 8: No decline
GroupValue95% CI
Part 2 (LPC): Arm 3: BNT1121
Cycle 1 Day 8: 0 to 25%
GroupValue95% CI
Part 2 (LPC): Arm 3: BNT1120
Cycle 1 Day 8: Greater than (>) 25% to 50%
GroupValue95% CI
Part 2 (LPC): Arm 3: BNT1120
Cycle 1 Day 8: >50%
GroupValue95% CI
Part 2 (LPC): Arm 3: BNT1120
Cycle 1 Day 15: No decline
GroupValue95% CI
Part 2 (LPC): Arm 3: BNT1120
Cycle 1 Day 15: 0 to 25%
GroupValue95% CI
Part 2 (LPC): Arm 3: BNT1120
Cycle 1 Day 15: >25% to 50%
GroupValue95% CI
Part 2 (LPC): Arm 3: BNT1121
Cycle 1 Day 15: >50%
GroupValue95% CI
Part 2 (LPC): Arm 3: BNT1120
Number of Participants Reporting Change From Baseline in PSA Doubling Time (PSADT) Secondary · Cycle 4 Day 1, Cycle 8 Day 1, Cycle 12 Day 1 (each cycle duration=21 days)

Participants blood samples were tested for levels of PSA to track the progression of prostate cancer. PSADT was calculated using a linear regression model of the natural logarithm of PSA values and time. PSA doubling time compared to baseline during the treatment period for the following categories: 0 - 3 months; \>3 - 6 months; \>6 - 9 months; \>9 - 12 months; \>12 - 18 months; \>18 - 24 months; \>24 months and declining are reported in this outcome measure.

Cycle 4 Day 1: 0 - 3 months
GroupValue95% CI
Part 1 (mCRPC): BNT1125
Part 2 (mCRPC): Arm 1a: BNT112 + Cemiplimab16
Part 2 (mCRPC): Arm 1b: BNT11211
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab1
Part 2 (LPC): Arm 3: BNT1120
Cycle 4 Day 1: >3 - 6 months
GroupValue95% CI
Part 1 (mCRPC): BNT1120
Part 2 (mCRPC): Arm 1a: BNT112 + Cemiplimab2
Part 2 (mCRPC): Arm 1b: BNT1122
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab0
Part 2 (LPC): Arm 3: BNT1120
Cycle 4 Day 1: >6 - 9 months
GroupValue95% CI
Part 1 (mCRPC): BNT1121
Part 2 (mCRPC): Arm 1a: BNT112 + Cemiplimab1
Part 2 (mCRPC): Arm 1b: BNT1122
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab0
Part 2 (LPC): Arm 3: BNT1120
Cycle 4 Day 1: >9 - 12 months
GroupValue95% CI
Part 1 (mCRPC): BNT1120
Part 2 (mCRPC): Arm 1a: BNT112 + Cemiplimab0
Part 2 (mCRPC): Arm 1b: BNT1120
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab0
Part 2 (LPC): Arm 3: BNT1120
Cycle 4 Day 1: >12 - 18 months
GroupValue95% CI
Part 1 (mCRPC): BNT1120
Part 2 (mCRPC): Arm 1a: BNT112 + Cemiplimab0
Part 2 (mCRPC): Arm 1b: BNT1120
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab0
Part 2 (LPC): Arm 3: BNT1120
Cycle 4 Day 1: >18 - 24 months
GroupValue95% CI
Part 1 (mCRPC): BNT1120
Part 2 (mCRPC): Arm 1a: BNT112 + Cemiplimab0
Part 2 (mCRPC): Arm 1b: BNT1121
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab0
Part 2 (LPC): Arm 3: BNT1120
Cycle 4 Day 1: >24 months
GroupValue95% CI
Part 1 (mCRPC): BNT1120
Part 2 (mCRPC): Arm 1a: BNT112 + Cemiplimab0
Part 2 (mCRPC): Arm 1b: BNT1120
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab0
Part 2 (LPC): Arm 3: BNT1120
Cycle 4 Day 1: Declining
GroupValue95% CI
Part 1 (mCRPC): BNT1120
Part 2 (mCRPC): Arm 1a: BNT112 + Cemiplimab2
Part 2 (mCRPC): Arm 1b: BNT1123
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab4
Part 2 (LPC): Arm 3: BNT1125
Number of Participants With PSA Decline of >=50% Secondary · Day8 (Cycles1&2 only), Day1 Cycle 2 & Day 15 (Cycles1,2 & 8 only) (each cycle of 21-days), & EOT (30 days after last dose of BNT112 [Part 1 & Part 2 Arms 1b & 3] or 90 days after last dose of cemiplimab [Part 2, Arm 1a & Arm 2] [up to 4 years & 1 months])

Participants blood samples were tested for levels of PSA to track the progression of prostate cancer. Participants with PSA decline of \>=50% compared to baseline according to PCWG3 (as reported by the investigator) are reported in this outcome measure. EOT in the timeframe below refers to End of treatment.

Cycle 1 Day 8
GroupValue95% CI
Part 2 (LPC): Arm 3: BNT1120
Cycle 1 Day 15
GroupValue95% CI
Part 2 (LPC): Arm 3: BNT1120
Cycle 2 Day 1
GroupValue95% CI
Part 1 (mCRPC): BNT1120
Part 2 (mCRPC): Arm 1a: BNT112 + Cemiplimab0
Part 2 (mCRPC): Arm 1b: BNT1121
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab3
Part 2 (LPC): Arm 3: BNT1124
Cycle 2 Day 8
GroupValue95% CI
Part 1 (mCRPC): BNT1120
Part 2 (LPC): Arm 3: BNT1121
Cycle 2 Day 15
GroupValue95% CI
Part 2 (LPC): Arm 3: BNT1121
Cycle 8 Day 15
GroupValue95% CI
Part 2 (mCRPC): Arm 1b: BNT1120
EOT
GroupValue95% CI
Part 1 (mCRPC): BNT1120
Part 2 (mCRPC): Arm 1a: BNT112 + Cemiplimab0
Part 2 (mCRPC): Arm 1b: BNT1120
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab4
Part 2 (LPC): Arm 3: BNT1123
Part 1: Objective Response Rate (ORR) Secondary · From start of treatment up to 27 weeks

ORR was defined as the percentage of participants with a CR or PR as per PCWG3 criteria as determined by the investigator. Participants not meeting the criteria for CR or PR, including those without any post-baseline tumor assessments, were considered as non-responders. CR was defined as the disappearance of all target lesions, with a reduction in short axis to \<10 mm in any pathological lymph nodes and no new lesions. PR was defined as 30% decrease in the sum of the longest diameter of target lesions.

GroupValue95% CI
Part 1 (mCRPC): BNT11200.0 – 33.6
Part 2: Arms 2 and 3: Number of Participants With Tumor Response Post-Treatment Secondary · From start of treatment up to 25 weeks (Arm 2) and up to 26 weeks (Arm 3)

The best overall response was defined as a single best response status at any tumor response assessment after first administration of IMP and prior to or at the start date of the first subsequent anti-cancer therapy. Overall response of progressive disease within 14 days after the start date of first subsequent anti-cancer therapy was considered. The following order of tumor response categories were used, where "Complete Response" is the best category: Complete Response (CR) - Partial Response (PR) - Stable Disease (SD) - Progressive Disease (PD) - Not Evaluable (NE) - Missing. CR: disappearan

Complete Response (CR)
GroupValue95% CI
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab0
Part 2 (LPC): Arm 3: BNT1120
Partial Response (PR)
GroupValue95% CI
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab3
Part 2 (LPC): Arm 3: BNT1123
Stable Disease (SD)
GroupValue95% CI
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab2
Part 2 (LPC): Arm 3: BNT1122
Progressive Disease (PD)
GroupValue95% CI
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab0
Part 2 (LPC): Arm 3: BNT1120
Not Evaluable (NE)
GroupValue95% CI
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab0
Part 2 (LPC): Arm 3: BNT1120
Missing
GroupValue95% CI
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab0
Part 2 (LPC): Arm 3: BNT1121
Part 2 Arm 1b: Objective Response Rate (ORR) Primary · From start of treatment up to 104 weeks

ORR was defined as the percentage of participants with a CR or PR as per PCWG3 criteria as determined by the investigator. Participants not meeting the criteria for CR or PR, including those without any post-baseline tumor assessments, were considered as non-responders. CR was defined as the disappearance of all target lesions, with a reduction in short axis to \<10 mm in any pathological lymph nodes and no new lesions. PR was defined as 30% decrease in the sum of the longest diameter of target lesions.

GroupValue95% CI
Part 2 (mCRPC): Arm 1b: BNT11212.02.5 – 31.2

Adverse events — posted to ClinicalTrials.gov

Time frame: From Baseline up to 30 days after the last dose of BNT112 (for Part 1 and Part 2 Arm 1b and 3) or up to 90 days after the last dose of cemiplimab (for Part 2, Arm 1a and Arm 2) (up to 4 years and 1 month). As per the protocol, non-SAEs with an onset date more than 30 days after the last dose of BNT112 or 90 days after the last dose of cemiplimab (for Part 2, Arm 1a and Arm 2) are only reported below if assessed as related to IMP by the investigator.. Reporting threshold: 5%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

Part 1 (mCRPC): BNT112
Serious: 5/9 (56%)
Deaths: 7/9
Part 2 (mCRPC): Arm 1a: BNT112 + Cemiplimab
Serious: 5/28 (18%)
Deaths: 17/28
Part 2 (mCRPC): Arm 1b: BNT112
Serious: 9/27 (33%)
Deaths: 13/27
Part 2 (LPC): Arm 2: BNT112 + Cemiplimab
Serious: 2/5 (40%)
Deaths: 1/5
Part 2 (LPC): Arm 3: BNT112
Serious: 2/6 (33%)
Deaths: 0/6

Serious adverse events (32 terms)

ReactionSystemPart 1 (mCRPC): BNT112Part 2 (mCRPC): Arm 1a: BN…Part 2 (mCRPC): Arm 1b: BN…Part 2 (LPC): Arm 2: BNT11…Part 2 (LPC): Arm 3: BNT112
AnaemiaBlood and lymphatic system disorders
Infusion related reactionInjury, poisoning and procedural complications
Prostate cancerNeoplasms benign, malignant and unspecified (incl cysts and polyps)
SyncopeNervous system disorders
ThrombocytopeniaBlood and lymphatic system disorders
Right ventricular failureCardiac disorders
Supraventricular tachycardiaCardiac disorders
TinnitusEar and labyrinth disorders
Abdominal painGastrointestinal disorders
DiarrhoeaGastrointestinal disorders
IleusGastrointestinal disorders
NauseaGastrointestinal disorders
Chest painGeneral disorders
FatigueGeneral disorders
Systemic inflammatory response syndromeGeneral disorders
Appendicitis perforatedInfections and infestations
Pelvic abscessInfections and infestations
SepsisInfections and infestations
Septic shockInfections and infestations
Urinary tract infectionInfections and infestations
Electrocardiogram QT prolongedInvestigations
DehydrationMetabolism and nutrition disorders
Diabetic ketoacidosisMetabolism and nutrition disorders
ParaesthesiaNervous system disorders
Spinal cord compressionNervous system disorders
Other adverse events (86 terms — click to expand)

ReactionSystemPart 1 (mCRPC): BNT112Part 2 (mCRPC): Arm 1a: BN…Part 2 (mCRPC): Arm 1b: BN…Part 2 (LPC): Arm 2: BNT11…Part 2 (LPC): Arm 3: BNT112
PyrexiaGeneral disorders
ChillsGeneral disorders
FatigueGeneral disorders
AnaemiaBlood and lymphatic system disorders
DiarrhoeaGastrointestinal disorders
NauseaGastrointestinal disorders
ArthralgiaMusculoskeletal and connective tissue disorders
Influenza like illnessGeneral disorders
COVID-19Infections and infestations
HypertensionVascular disorders
VomitingGastrointestinal disorders
Blood alkaline phosphatase increasedInvestigations
Back painMusculoskeletal and connective tissue disorders
Pain in extremityMusculoskeletal and connective tissue disorders
DyspnoeaRespiratory, thoracic and mediastinal disorders
Atrial fibrillationCardiac disorders
Abdominal painGastrointestinal disorders
ConstipationGastrointestinal disorders
Oedema peripheralGeneral disorders
Aspartate aminotransferase increasedInvestigations
Eastern Cooperative Oncology Group performance status worsenedInvestigations
Gamma-glutamyltransferase increasedInvestigations
DizzinessNervous system disorders
HeadacheNervous system disorders
InsomniaPsychiatric disorders
HypotensionVascular disorders
ThrombocytopeniaBlood and lymphatic system disorders
HypothyroidismEndocrine disorders
Gastrooesophageal reflux diseaseGastrointestinal disorders
AstheniaGeneral disorders
General physical health deteriorationGeneral disorders
Oral herpesInfections and infestations
Infusion related reactionInjury, poisoning and procedural complications
Alanine aminotransferase increasedInvestigations
Blood creatinine increasedInvestigations
Blood pressure increasedInvestigations
C-reactive protein increasedInvestigations
Platelet count decreasedInvestigations
Weight decreasedInvestigations
Decreased appetiteMetabolism and nutrition disorders

Most-reported serious reactions: Anaemia, Infusion related reaction, Prostate cancer, Syncope, Thrombocytopenia, Right ventricular failure, Supraventricular tachycardia, Tinnitus.

Data from ClinicalTrials.gov NCT04382898 adverse events section.

Sponsor's own description

Open-label, multicenter, dose titration and four-arm expansion trial to evaluate the safety, tolerability, immunogenicity, and preliminary efficacy of BNT112 cancer vaccine (BNT112) monotherapy or in combination with cemiplimab in patients with metastatic castration resistant prostate cancer (mCRPC: Part 1 and Part 2 Arms 1A and 1B) and in patients with high-risk, localized prostate cancer (LPC). As of February 2023, the trial only recruited LPC patients and no longer mCRPC patients.

Publications & conference data

8 peer-reviewed publications reference this trial (live from Europe PMC):

  1. Cancer vaccines as promising immuno-therapeutics: platforms and current progress.
    Liu J, Fu M, Wang M, Wan D, et al · · 2022 · cited 497× · PMID 35303904 · DOI 10.1186/s13045-022-01247-x
  2. Lipids and Lipid Derivatives for RNA Delivery.
    Zhang Y, Sun C, Wang C, Jankovic KE, et al · · 2021 · cited 423× · PMID 34279087 · DOI 10.1021/acs.chemrev.1c00244
  3. Advances in COVID-19 mRNA vaccine development.
    Fang E, Liu X, Li M, Zhang Z, et al · · 2022 · cited 368× · PMID 35322018 · DOI 10.1038/s41392-022-00950-y
  4. Clinical advances and ongoing trials on mRNA vaccines for cancer treatment.
    Lorentzen CL, Haanen JB, Met Ö, Met Ö, et al · · 2022 · cited 362× · PMID 36174631 · DOI 10.1016/s1470-2045(22)00372-2
  5. Therapeutic cancer vaccines: advancements, challenges, and prospects.
    Fan T, Zhang M, Yang J, Zhu Z, et al · · 2023 · cited 314× · PMID 38086815 · DOI 10.1038/s41392-023-01674-3
  6. mRNA therapeutics in cancer immunotherapy.
    Beck JD, Reidenbach D, Salomon N, Sahin U, et al · · 2021 · cited 266× · PMID 33858437 · DOI 10.1186/s12943-021-01348-0
  7. Non-viral vectors for RNA delivery.
    Yan Y, Liu XY, Lu A, Wang XY, et al · · 2022 · cited 213× · PMID 35016918 · DOI 10.1016/j.jconrel.2022.01.008
  8. Nanoparticles in the clinic: An update post COVID-19 vaccines.
    Anselmo AC, Mitragotri S. · · 2021 · cited 211× · PMID 34514159 · DOI 10.1002/btm2.10246

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