Shortened 12 months duration of androgen receptor signalling agent in combination with androgen deprivation therapy in patients with low-volume castration-sensitive prostate cancer: a randomized Nationwide Study

2023-506698-36-00 Therapeutic confirmatory (Phase III) Ongoing, recruiting

Start 2 Feb 2024 · Status Ongoing, recruiting · 1 EU/EEA countries · 28 sites

Overview

Sponsor-declared trial summary

Phase Therapeutic confirmatory (Phase III)
Status Ongoing, recruiting
Participants planned 400
Countries 1
Sites 28

low-volume metastatic castration-sensitive prostate cancer

To evaluate whether the discontinuation of ARSIs 12 months after its initiation in low-volume metastatic castration-sensitive prostate cancer (mCSPC) patients with the possibility to restart treatment, is non-inferior to continued androgen receptor signaling inhibitors (ARSI), thereby sparing significant toxicity and c…

Key facts

Sponsor
Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male
Therapeutic area
Diseases [C] - Male Urogenital Diseases [C12], Diseases [C] - Neoplasms [C04]
Trial duration
2 Feb 2024 → ongoing
Decision date (initial)
2023-12-12
Transition trial
No
Low-intervention
Yes
Rare-disease indication
No
Vulnerable population
No
Funding sources
Stichting Treatmeds

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Therapy, Efficacy

To evaluate whether the discontinuation of ARSIs 12 months after its initiation in low-volume metastatic castration-sensitive prostate cancer (mCSPC) patients with the possibility to restart treatment, is non-inferior to continued androgen receptor signaling inhibitors (ARSI), thereby sparing significant toxicity and costs

Secondary objectives 11

  1. To prospectively evaluate time to PSA increase
  2. To prospectively evaluate time to first line therapy for metastatic castration-resistant prostate cancer (mCRPC)
  3. to prospectively evaluate overall survival (OS)
  4. To correlate ctDNA levels to PSA levels, and to evaluate whether ctDNA levels could serve as a (better) treatment response marker than PSA
  5. To correlate PSMA-PET scan results to clinical outcomes
  6. To assess patients who will need continued ARSI treatment based on ctDNA levels before stopping treatment
  7. To correlate genomic profiles of previously taken prostate cancer biopsies to clinical outcomes
  8. To assess the value of ctDNA quantification during ARSIs treatment to predict tumor progression
  9. To explore QoL benefit by the interruption of ARSIs and potential changes during rechallenge
  10. To explore QoL with functional assessment of cancer therapy-prostate (FACT-P) at baseline, 12,18, 24 and 36 months after start treatmentTo identify resistance mechanisms in ctDNA occurring with ARSI treatment
  11. To explore whether intermittent dosing may prolong time to castration resistance prostate cancer plus ARSI resistance

Conditions and MedDRA coding

low-volume metastatic castration-sensitive prostate cancer

Study design 3 periods

#TitleAllocationBlindingRoles blindedArms
1 Treatment phase
From inclusion until last day of treatment with apalutamide or enzalutamide
Not Applicable None
2 Randomization
After 12 months in treatment phase, patients will be randomized to either continue or discontinue apalutamide or enzalutamide. In the first case patient stays in treatment phase, otherwise patient enters follow up phase
Randomised Controlled None Continue group: Patient who will continue treatment with ARSI after the first 12 months
Discontinue group: Patients who will discontinue treatment with ARSI and will enter follow up phase
3 Follow up phase
From last day of treatment or moment of progression (whichever occurs first) until death or end of study (whichever occurs first)
Not Applicable None

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 7

  1. Male and ≥18 years of age
  2. Histological diagnosis of prostate adenocarcinoma
  3. Low-volume de novo metastatic disease (M1a or M1b) defined as anything other than fitting the criteria for high-volume metastatic disease, e.g., four or more bone lesions with one or more lesions in any body structure beyond the spine or pelvis, or visceral disease (non-nodal). This has been assessed by either bone scan and computed tomography (CT), or PSMA-PET scan. Low-volume disease has subsequently been confirmed by the local (multidisciplinary) team after consideration of the available imaging results as per the standard imaging protocol for the site.
  4. ADT initiated within 6 weeks prior to inclusion
  5. Eastern Cooperative Oncology Group (ECOG) performance scale status of 0, 1 or 2
  6. Fit for treatment with apalutamide or enzalutamide according to treating physician
  7. Capable of understanding and complying with protocol requirements and able to understand and sign the informed consent form

Exclusion criteria 5

  1. Pathological finding consistent with small cell, ductal or neuroendocrine carcinoma of the prostate
  2. Other prior malignancy less than or equal to 5 years prior to randomization except for squamous or basal cell skin carcinoma or non-invasive superficial bladder cancer
  3. History of seizures or medications known to lower seizure threshold
  4. Any other prior treatment for prostate cancer other than ADT (e.g., other next generation anti-androgens or other CYP17 inhibitors, chemotherapy, immunotherapy, or radiopharmaceutical agents)
  5. ADT started more than 6 weeks before inclusion

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  1. Time to clinical progression free survival (cPFS) in both arms

Secondary endpoints 9

  1. Overall survival (OS)
  2. Time to PSA increase (defined according to PCWG3 criteria)
  3. Time to first line therapy for mCRPC
  4. ctDNA levels correlation with PSA levels
  5. Value of ctDNA quantification during ARSI treatment to predict tumor progression
  6. Quality of life (QoL) in relation to treatment with ARSI
  7. To correlate PSMA-PET scan results to clinical outcomes
  8. Correlation of genomic profiles of previously taken prostate cancer tissue biopsies and clinical outcome.
  9. Predict patients who will need continued ARSI treatment with ctDNA levels

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 2

Apalutamide

SUB189031 · Substance

Active substance
Apalutamide
Pharmaceutical form
FILM-COATED TABLET
Route of administration
ORAL
Max daily dose
240 mg milligram(s)
Max total dose
438000 mg milligram(s)
Max treatment duration
60 Month(s)
Authorisation status
Authorised
ATC code
- — -
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Enzalutamide

SUB77412 · Substance

Active substance
Enzalutamide
Pharmaceutical form
FILM-COATED TABLET
Route of administration
ORAL
Max daily dose
160 mg milligram(s)
Max total dose
292000 mg milligram(s)
Max treatment duration
60 Month(s)
Authorisation status
Authorised
ATC code
- — -
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Auxiliary 16

Suprefact Depot 9,45 mg implantat

PRD7966367 · Product

Pharmaceutical form
IMPLANT
Route of administration
IMPLANTATION
Max daily dose
9.9 mg milligram(s)
Max total dose
198 mg milligram(s)
Max treatment duration
60 Month(s)
Authorisation status
Authorised
ATC code
L02AE01 — BUSERELIN
Marketing authorisation
13372
MA holder
CHEPLAPHARM ARZNEIMITTEL GMBH
MA country
Sweden
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Decapeptyl-CR 3,75 mg, poeder en oplosmiddel voor suspensie voor injectie

PRD468913 · Product

Active substance
Triptorelin
Substance synonyms
TRIPTORELINE
Pharmaceutical form
SUSPENSION FOR INJECTION
Route of administration
INJECTABLE SOLUTION
Max daily dose
3.75 mg milligram(s)
Max total dose
245 mg milligram(s)
Max treatment duration
60 Month(s)
Authorisation status
Authorised
ATC code
L02AE04 — TRIPTORELIN
Marketing authorisation
RVG 12450
MA holder
FERRING B.V.
MA country
Netherlands
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Pamorelin 22,5 mg, poeder en oplosmiddel voor suspensie voor injectie, met verlengde afgifte.

PRD391067 · Product

Active substance
Triptorelin
Substance synonyms
TRIPTORELINE
Pharmaceutical form
PROLONGED-RELEASE SUSPENSION FOR INJECTION
Route of administration
INTRAMUSCULAR INJECTION
Max daily dose
22.5 mg milligram(s)
Max total dose
225 mg milligram(s)
Max treatment duration
60 Month(s)
Authorisation status
Authorised
ATC code
L02AE04 — TRIPTORELIN
Marketing authorisation
RVG 103585
MA holder
IPSEN FARMACEUTICA B.V.
MA country
Netherlands
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Gonapeptyl Depot 3,75 mg poeder en oplosmiddel voor suspensie voor injectie

PRD435822 · Product

Active substance
Triptorelin
Substance synonyms
TRIPTORELINE
Pharmaceutical form
SUSPENSION FOR INJECTION
Route of administration
SUBCUTANEOUS INJECTION
Max daily dose
3.75 mg milligram(s)
Max total dose
450 mg milligram(s)
Max treatment duration
60 Month(s)
Authorisation status
Authorised
ATC code
L02AE04 — TRIPTORELIN
Marketing authorisation
BE230027
MA holder
FERRING N.V.
MA country
Belgium
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Pamorelin 3,75 mg, poeder en oplosmiddel voor suspensie voor injectie, met verlengde afgifte.

PRD391051 · Product

Active substance
Triptorelin
Substance synonyms
TRIPTORELINE
Pharmaceutical form
PROLONGED-RELEASE SUSPENSION FOR INJECTION
Route of administration
INTRAMUSCULAR OR SUBCUTANEOUS
Max daily dose
3.75 mg milligram(s)
Max total dose
225 mg milligram(s)
Max treatment duration
60 Month(s)
Authorisation status
Authorised
ATC code
L02AE04 — TRIPTORELIN
Marketing authorisation
RVG 33849
MA holder
IPSEN FARMACEUTICA B.V.
MA country
Netherlands
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Pamorelin 11,25 mg, poeder en oplosmiddel voor suspensie voor injectie, met verlengde afgifte.

PRD391063 · Product

Active substance
Triptorelin
Substance synonyms
TRIPTORELINE
Pharmaceutical form
PROLONGED-RELEASE SUSPENSION FOR INJECTION
Route of administration
INTRAMUSCULAR INJECTION
Max daily dose
11.25 mg milligram(s)
Max total dose
225 mg milligram(s)
Max treatment duration
60 Month(s)
Authorisation status
Authorised
ATC code
L02AE04 — TRIPTORELIN
Marketing authorisation
RVG 31138
MA holder
IPSEN FARMACEUTICA B.V.
MA country
Netherlands
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

CAMCEVI 42 mg prolonged-release suspension for injection

PRD9731523 · Product

Active substance
Leuprorelin
Substance synonyms
LEUPROLIDE
Pharmaceutical form
PROLONGED-RELEASE SUSPENSION FOR INJECTION
Route of administration
IMPLANTATION
Max daily dose
42 mg milligram(s)
Max total dose
420 mg milligram(s)
Max treatment duration
60 Month(s)
Authorisation status
Authorised
ATC code
L02AE02 — LEUPRORELIN
Marketing authorisation
EU/1/22/1647/001
MA holder
ACCORD HEALTHCARE S.L.U.
MA country
Liechtenstein
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Leuprorelin Acetate

SUB02900MIG · Substance

Active substance
Leuprorelin Acetate
Pharmaceutical form
POWDER AND SOLVENT FOR SUSPENSION FOR INJECTION
Route of administration
SUBCUTANEOUS
Max daily dose
11.25 mg milligram(s)
Max total dose
225 mg milligram(s)
Max treatment duration
60 Month(s)
Authorisation status
Authorised
ATC code
- — -
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Leuprorelin Acetate

SUB02900MIG · Substance

Active substance
Leuprorelin Acetate
Pharmaceutical form
POWDER AND SOLVENT FOR SOLUTION FOR INJECTION
Route of administration
SUBCUTANEOUS INJECTION
Max daily dose
3.75 mg milligram(s)
Max total dose
225 mg milligram(s)
Max treatment duration
60 Month(s)
Authorisation status
Authorised
ATC code
- — -
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Eligard 22,5 mg poeder en oplosmiddel voor oplossing voor injectie

PRD8990123 · Product

Active substance
Leuprorelin Acetate
Pharmaceutical form
SOLUTION FOR INJECTION
Route of administration
SUBCUTANEOUS INJECTION
Max daily dose
22.5 mg milligram(s)
Max total dose
450 mg milligram(s)
Max treatment duration
60 Month(s)
Authorisation status
Authorised
ATC code
L02AE02 — LEUPRORELIN
Marketing authorisation
RVG 31669
MA holder
RECORDATI INDUSTRIA CHIMICA E FARMACEUTICA S.P.A.
MA country
Netherlands
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

ELIGARD 7.5 mg powder and solvent for solution for injection

PRD9148700 · Product

Active substance
Leuprorelin Acetate
Substance synonyms
LEUPROLIDE ACETATE
Pharmaceutical form
SOLUTION FOR INJECTION
Route of administration
SUBCUTANEOUS INJECTION
Max daily dose
7.5 mg milligram(s)
Max total dose
450 mg milligram(s)
Max treatment duration
60 Month(s)
Authorisation status
Authorised
ATC code
L02AE02 — LEUPRORELIN
Marketing authorisation
PA0812/005/001
MA holder
RECORDATI INDUSTRIA CHIMICA E FARMACEUTICA S.P.A.
MA country
Ireland
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Leuprorelin Acetate

SUB02900MIG · Substance

Active substance
Leuprorelin Acetate
Pharmaceutical form
POWDER AND SOLVENT FOR SUSPENSION FOR INJECTION
Route of administration
SUBCUTANEOUS INJECTION
Max daily dose
30 mg milligram(s)
Max total dose
300 mg milligram(s)
Max treatment duration
60 Month(s)
Authorisation status
Authorised
ATC code
- — -
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Eligard 45 mg poeder en oplosmiddel voor oplossing voor injectie

PRD8990124 · Product

Active substance
Leuprorelin Acetate
Pharmaceutical form
SOLUTION FOR INJECTION
Route of administration
SUBCUTANEOUS INJECTION
Max daily dose
45 mg milligram(s)
Max total dose
450 mg milligram(s)
Max treatment duration
60 Month(s)
Authorisation status
Authorised
ATC code
L02AE02 — LEUPRORELIN
Marketing authorisation
RVG 35313
MA holder
RECORDATI INDUSTRIA CHIMICA E FARMACEUTICA S.P.A.
MA country
Netherlands
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Leuproreline Sandoz depot 3 maanden 5 mg, implantaat

PRD744667 · Product

Active substance
Leuprorelin
Pharmaceutical form
IMPLANT
Route of administration
IMPLANTATION
Max daily dose
5 mg milligram(s)
Max total dose
100 mg milligram(s)
Max treatment duration
60 Month(s)
Authorisation status
Authorised
ATC code
L02AE02 — LEUPRORELIN
Marketing authorisation
RVG 30594
MA holder
SANDOZ B.V.
MA country
Netherlands
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Goserelin Acetate

SUB02400MIG · Substance

Active substance
Goserelin Acetate
Pharmaceutical form
IMPLANT
Route of administration
IMPLANTATION
Max daily dose
10.8 mg milligram(s)
Max total dose
234 mg milligram(s)
Max treatment duration
60 Month(s)
Authorisation status
Authorised
ATC code
- — -
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Goserelin Acetate

SUB02400MIG · Substance

Active substance
Goserelin Acetate
Pharmaceutical form
IMPLANT
Route of administration
IMPLANTATION
Max daily dose
3.6 mg milligram(s)
Max total dose
216 mg milligram(s)
Max treatment duration
60 Month(s)
Authorisation status
Authorised
ATC code
- — -
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)

Sponsor organisation
Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)
Address
Dr. Molewaterplein 40
City
Rotterdam
Postcode
3015 GD
Country
Netherlands

Scientific contact point

Organisation
Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)
Contact name
Khrystany Isebia

Public contact point

Organisation
Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)
Contact name
Khrystany Isebia

Locations

1 EU/EEA country · 28 investigational sites

By country

CountryMS statusPlanned subjectsSites
Netherlands Ongoing, recruiting 400 28
Rest of world 0

Investigational sites

Netherlands

28 sites · Ongoing, recruiting
Deventer Ziekenhuis
Medical Oncology, Nico Bolkesteinlaan 75, 7416 SE, Deventer
Universiteit Maastricht
Medical Oncology, P Debyelaan 25, 6229 HX, Maastricht
Wilhelmina Ziekenhuis Assen
Medical Oncology, Europaweg-Zuid 1, 9401 RK, Assen
Ikazia Ziekenhuis
Internal Medicine, Montessoriweg 1, 3083 AN, Rotterdam
Laurentius Ziekenhuis Roermond
Medical oncology, Monseigneur Driessenstraat 6, 6043 CV, Roermond
Sint Antonius Ziekenhuis Stichting
Medical oncology, Koekoekslaan 1, 3435 CM, Nieuwegein
Ziekenhuisgroep Twente Stichting
Oncology, Zilvermeeuw 1, 7609 PP, Almelo
Bravis Ziekenhuis
Medical Oncology, Boerhaavelaan 25, 4708 AE, Roosendaal
Sint Franciscus Vlietland Groep Stichting
Medical Oncology, Kleiweg 500, 3045 PM, Rotterdam
Universitair Medisch Centrum Groningen
Medical Oncology, Hanzeplein 1, 9713 GZ, Groningen
Meander Medisch Centrum
Medical Oncology, Maatweg 3, 3813 TZ, Amersfoort
Adrz
Internal Medicine, 's-Gravenpolderseweg 114, 4462 RA, Goes
Medisch Spectrum Twente
Internal Medicine, Koningsplein 1, 7512 KZ, Enschede
Maasstad Ziekenhuis Stichting
Oncology, Maasstadweg 21, 3079 DZ, Rotterdam
Stichting Viecuri Medisch Centrum voor Noord-Limburg
General Medicine, Tegelseweg 210, 5912 BL, Venlo
Haaglanden Medisch Centrum Stichting
Internal Oncology, Lijnbaan 32, 2512 VA, 'S-Gravenhage
Tergooiziekenhuizen
Medical oncology, Laan Van Tergooi 2, 1212 VG, Hilversum
Noordwest Ziekenhuisgroep Stichting
Oncology, Wilhelminalaan 12, 1815 JD, Alkmaar
Spaarne Gasthuis Stichting
Medical oncology, Boerhaavelaan 24, 2035 RC, Haarlem
Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)
Medical Oncology, Dr. Molewaterplein 40, 3015 GD, Rotterdam
Medisch Centrum Leeuwarden B.V.
Medical Oncology, Henri Dunantweg 2, 8934 AD, Leeuwarden
Canisius Wilhelmina Hospital
Urology, Weg Door Jonkerbos 100, 6532 SZ, Nijmegen
Het Nederlands Kanker Instituut-Antoni van Leeuwenhoek Ziekenhuis Stichting
Medical oncology, Plesmanlaan 121, 1066 CX, Amsterdam
Rode Kruis Ziekenhuis B.V.
Oncology, Vondellaan 13, 1942 LE, Beverwijk
Haga Hospital
Oncology, Els Borst-Eilersplein 275, 2545 AA, 's-Gravenhage
Stichting Treant Ziekenhuiszorg
Medical Oncology, Boermarkeweg 60, 7824 AA, Emmen
Amsterdam UMC
Medical Oncology, De Boelelaan 1117, 1081 HV, Amsterdam
Catharina Ziekenhuis Stichting
Medical Oncology, Michelangelolaan 2, 5623 EJ, Eindhoven

Country notifications

Trial-start, recruitment-start, end and early-termination notifications submitted per Member State

Country Trial startTrial end Recruitment startRecruitment end Early termination
Netherlands 2024-02-02 2024-10-17

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Documents 8 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Protocol (for publication) D1 APA ENZA Short_Protocol_clean 5
Recruitment arrangements (for publication) K1 Recruitment arrangements 1
Subject information and informed consent form - Extract (for publication) Verklaring ApaEnza short_20052024_TvD 1 1
Subject information and informed consent form (for publication) L1 SIS and ICF adults 2023-506698-36_CLEAN 4
Summary of Product Characteristics (SmPC) (for publication) G2 IMP_SmPC Apalutamide 1
Summary of Product Characteristics (SmPC) (for publication) G2 IMP_SmPC Enzalutamide 1
Synopsis of the protocol (for publication) D1 Protocol Synopsis_EN 2023-506698-36 4
Synopsis of the protocol (for publication) D1 Protocol Synopsis_NL 2023-506698-36 3

Application history

6 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2023-06-27 Netherlands Acceptable with conditions
2023-10-04
2023-12-12
2 NON SUBSTANTIAL MODIFICATION NSM-1 2023-12-13 Netherlands Acceptable with conditions
2023-10-04
2023-12-13
3 SUBSTANTIAL MODIFICATION SM-1 2024-07-24 Netherlands Acceptable
2024-10-10
2024-10-10
4 SUBSTANTIAL MODIFICATION SM-2 2025-07-21 Netherlands Acceptable
2025-10-13
2025-10-13
5 NON SUBSTANTIAL MODIFICATION NSM-3 2025-10-30 Netherlands Acceptable
2025-10-13
2025-10-30
6 NON SUBSTANTIAL MODIFICATION NSM-4 2025-12-03 Netherlands Acceptable
2025-10-13
2025-12-03