Clinical trial · Interventional
GP Extended Action Triptorelin
A Phase IV, Randomised, Open-label, Multi-centre Study to Assess the Impact on Disease Control, Safety, Patient and Clinician Experience of Changing Patients With Advanced Prostate Cancer From a 3-monthly LHRH Agonist to 6-monthly Injections of Decapeptyl® SR 22.5 MG
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Why stopped (as posted): The study was discontinued prematurely by the sponsor due to non-medical reasons
Summary
Brief summary (as posted)
The purpose of this study is to demonstrate that treatment with a 6-monthly injection of hormone therapy is as good and as well tolerated as the standard 3-monthly hormone therapy injections available for treating prostate cancer. The study will also aim to answer whether both doctors and patients would prefer treatment with a 6-monthly injection rather than injections every 3 months.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Prostate Cancer | Malignant Prostate Neoplasm | CURATED_EXACT | 0.92 |
Interventions
Interventions (2)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Decapeptyl® SR 11.25mg; Prostap® 3 DCS 11.25mg; Zoladex® LA 10.8mg | Drug | — | UNRESOLVED |
| Decapeptyl® SR 22.5mg | Drug | Triptorelin | ALIAS |
Design
Arms and outcomes
Arms (2)
- type
- EXPERIMENTAL
- label
- Decapeptyl® SR 22.5mg (Triptorelin)
- interventionNames
- Drug: Decapeptyl® SR 22.5mg
- type
- ACTIVE_COMPARATOR
- label
- Current 3-monthly LHRH agonist
- description
- One of the following: Decapeptyl® SR 11.25mg (Triptorelin), Prostap® 3 DCS 11.25mg, Zoladex® LA 10.8mg
- interventionNames
- Drug: Decapeptyl® SR 11.25mg; Prostap® 3 DCS 11.25mg; Zoladex® LA 10.8mg
Primary outcomes (1)
- measure
- Percentage of Participants Maintaining Biochemical Castration
- timeFrame
- 6 months
- description
Eligibility
Eligibility (as posted)
- Sex
- Male
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Patients must give written (personally signed and dated) informed consent before completing any study related procedure. * Patients must be 18 years old or over. * Patients must have a documented diagnosis of locally advanced or metastatic prostate cancer suitable for hormonal treatment * Patients must be medically castrated with serum testosterone ≤ 0.5ng/mL * Patients must have received at least two injections of a 3- monthly LHRH agonist by the time of the screening tests * Patients must be stable on a 3-monthly LHRH agonist injection with stable PSA levels between screening and baseline (i.e. the baseline value must either be lower or less than 25% higher than the Screening value or if ≥25% higher, ≤0.5ng/mL higher than the screening value). In addition: * For patients with locally advanced prostate cancer (M0), LHRH agonist injection (any formulation) must have been initiated within the last 3 years from Baseline, * For patients with metastatic prostate cancer (M+) and a Gleason score ≤ 7, LHRH agonist injection (any formulation) must have been initiated within the last 2 years from Baseline, * For patients with metastatic prostate cancer (M+) and a Gleason score \> 7, LHRH agonist injection (any formulation) must have been initiated within the last 12 months from Baseline. * Patients must have an estimated life expectancy of at least twelve months according to the investigator's assessment. Exclusion Criteria: * Patients have had previous surgical castration or present any concomitant condition which could compromise the objectives of the study and/or preclude the protocol-defined procedures (e.g. severe medical conditions, brain metastases, psychiatric disorders, active or uncontrolled infection, known pituitary disease). * Patients are, in the opinion of the investigator, unable to comply fully with the protocol and the study instructions. * Patients have received investigational drug(s) or treatment(s) within 30 days prior to study entry or will require a concurrent treatment with any other experimental drugs or treatments or present any concomitant condition which could compromise the objectives of the study and/or preclude the protocol-defined procedures (e.g. severe medical conditions, brain metastases, psychiatric disorders, active or uncontrolled infection, known pituitary disease). * Patients have had a diagnosis of any other cancer without a history of stability/remission within five years of screening, with the exception of non-metastatic basal cell carcinoma. * Patients currently taking additional anti-androgen therapy as part of an active hormonal control therapy. * Patients scheduled to receive palliative radiotherapy during the course of the study. * Patients receiving an LHRH agonist as neo-adjuvant to radiotherapy or adjuvant to radiotherapy. * Patients receiving LHRH agonist as adjuvant to surgery. * Patients scheduled to undergo radical prostatectomy during the course of the study. * Patients with known hypersensitivity to LHRH agonists, their analogues or any or any other component of the products to be administered.
References
Publications (0)
Data not yet available