The effect of androgen deprivation therapy on the expression of prostate specific membrane antigen (PSMA) in treatment naive metastatic prostate cancer

2024-519516-14-01 Therapeutic exploratory (Phase II) Ongoing, recruiting

Start 15 Apr 2019 · Status Ongoing, recruiting · 1 EU/EEA countries · 1 sites

Overview

Sponsor-declared trial summary

Phase Therapeutic exploratory (Phase II)
Status Ongoing, recruiting
Participants planned 35
Countries 1
Sites 1

Metastatic prostate cancer, Prostate cancer

To demonstrate that PSMA-flare seen 2-3weeks after initiation of ADT at baseline is more common in bony lesions than in prostatic lesions

Key facts

Sponsor
Turku University Hospital
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male
Therapeutic area
Diseases [C] - Male Urogenital Diseases [C12], Diseases [C] - Neoplasms [C04], Diseases [C] - Hormonal diseases [C19]
Trial duration
15 Apr 2019 → ongoing
Decision date (initial)
2025-01-28
Transition trial
Yes
Low-intervention
No
Rare-disease indication
No
Vulnerable population
No

External identifiers

EU CT number
2024-519516-14-01
EudraCT number
2018-004853-26
ClinicalTrials.gov
NCT03876912

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Diagnosis, Efficacy

To demonstrate that PSMA-flare seen 2-3weeks after initiation of ADT at baseline is
more common in bony lesions than in prostatic lesions

Secondary objectives 5

  1. To study if metastatic lesions with and without PSMA-flare seen in baseline behave differently in repeated 18F-PSMA-PET CT at the time of CRPC
  2. To compare the metastatic load seen in 18F-PSMA-PET CT and FDG-PET-CT at baseline (Sub-study 1)
  3. To determine the total androgen profile during the evolution of metastatic Pca by repeated total androgen measurements in every six months from diagnosis to the development of CRPC (Sub-study 2)
  4. To biopsy prostate lesions seen on 18F-PSMA PET and determine if the changes of PSMA uptake after ADT might have a histopathological correlation (Substudy 3)
  5. To investigate gut microbiome and its changes during ADT (Substudy 4)

Conditions and MedDRA coding

Metastatic prostate cancer, Prostate cancer

Regulatory references

Plan to share IPD
No
EU CT numberTitleSponsor
2024-519516-14-00 The effect of androgen deprivation therapy on the expression of prostate specific membrane antigen (PSMA) in treatment naive metastatic prostate cancer Turku University Hospital

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 9

  1. Age: 40 to 85 years old
  2. Language spoken: Finnish and Swedish
  3. Diagnosis: Histologically confirmed adenocarcinoma of prostate
  4. Adequate histological sampling consisting of at least 3 biopsy samples from each lobe
  5. No previous surgical, radiation or endocrine treatment for prostate carcinoma
  6. Clinical stage: T1c-T4NanyM1
  7. Serum creatinine ≤ 1,5 x ULN
  8. Mental status: Patients must be able to understand the meaning of the study
  9. Informed consent: The patient must sign the appropriate Ethical Committee approved informed consent documents in the presence of the designated staff

Exclusion criteria 2

  1. Previous PC treatment
  2. Uncontrolled serious infection

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  1. To demonstrate that PSMA-flare seen 2-3weeks after initiation of ADT at baseline is more common in bony lesions than in prostatic lesions

Secondary endpoints 5

  1. To study if metastatic lesions with and without PSMA-flare seen in baseline behave differently in repeated 18F-PSMA-PET CT at the time of CRPC
  2. To compare the metastatic load seen in 18F-PSMA-PET CT and FDGPET- CT at baseline (Sub-study 1)
  3. To determine the total androgen profile during the evolution of metastatic Pca by repeated total androgen measurements in every six months from diagnosis to the development of CRPC (Sub-study 2)
  4. To biopsy prostate lesions seen on 18F-PSMA PET and determine if the changes of PSMA uptake after ADT might have a histopathological correlation (Substudy 3)
  5. To investigate gut microbiome and its changes during ADT (Substudy 4)

Investigational products

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

Test 1

Degarelix

SCP8252543 · ATC

Active substance
Degarelix
Route of administration
SUBCUTANEOUS
Max daily dose
240 mg milligram(s)
Max total dose
240 mg milligram(s)
Max treatment duration
1 Day(s)
Authorisation status
Authorised
ATC code
L02BX02 — DEGARELIX
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Turku University Hospital

15 Total trials 6 Recruiting
Academic / Non-commercial
Sponsor organisation
Turku University Hospital
Address
Kiinamyllynkatu 4-8
City
Turku
Postcode
20520
Country
Finland

Scientific contact point

Organisation
Turku University Hospital
Contact name
Turku University Hospital

Public contact point

Organisation
Turku University Hospital
Contact name
Turku University Hospital

Locations

1 EU/EEA country · 1 investigational sites

By country

CountryMS statusPlanned subjectsSites
Finland Ongoing, recruiting 35 1
Rest of world 0

Investigational sites

Finland

1 site · Ongoing, recruiting
Turku University Hospital
Nuclear medicine unit, PET Centre, Kiinamyllynkatu 4-8, 20520, Turku

Country notifications

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

Country Trial startTrial end Recruitment startRecruitment end Early termination
Finland 2019-04-15 2019-04-15

Results and documents

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

Documents 5 files

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

TypeTitleVersion
Protocol (for publication) 5_ADTPSMA2_reserch plan_1_4_for_CTIS_transition 1
Recruitment arrangements (for publication) ADTPSMA2 Selvitys rekrytoinnista 1
Subject information and informed consent form (for publication) ADTPSMA2 potilasinfo 1
Subject information and informed consent form (for publication) ADTPSMA2 suostumus 1
Summary of Product Characteristics (SmPC) (for publication) ADTPSMA_Firmagon valmisteyhteenveto 1

Application history

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

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2025-01-27 Finland Acceptable
2025-01-28
2025-01-28