A Phase 3 interventional study of Triptorelin Mesylate in Prostate Cancer, sponsored by Foresee Pharmaceuticals Co., Ltd.. Withdrawn. Open to male participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-04-27.
Sponsored by Foresee Pharmaceuticals Co., Ltd. · Phase 3, Interventional, and Treatment
This is a study in male patients with advanced prostate cancer who are eligible for androgen ablation therapy. The study duration will be up to 48 weeks.
Eligibility will be assessed during a screening period of up to 28 days. Up to 2 doses of a long-acting FP-014, 22.5 mg formulation will be given to the patients by separate SC injections 24 weeks apart in an unblinded manner. The first dose of FP-014, 22.5 mg will be administered on Day 0 (Visit 2/Week 1). When patients have tolerated the first dose of FP-014, 22.5 mg and have achieved castrate levels of serum testosterone, a second dose will be administered on Day 168 (Visit 14/Week 24) to achieve castrate levels of serum testosterone concentrations (\< 50 ng/dL). Patients will be followed for efficacy, safety, tolerability, and ancillary clinical and laboratory markers for an additional 24-week observation period (Day 336/Week 48/ Visit 24) Blood samples will be collected at Baseline (Day 0/Week 1) at least 30 minutes before the first FP-014, 22.5 mg administration, immediately thereafter and at specified time points through Day 336 (Week 48) to determine PK (triptorelin) and pharmacodynamics (PD) (testosterone, PSA, and LH) profiles.
This is a study in male patients with advanced prostate cancer who are eligible for androgen ablation therapy. The study duration will be up to 48 weeks.
Eligibility will be assessed during a screening period of up to 28 days. Up to 2 doses of a long-acting FP-014, 22.5 mg formulation will be given to the patients by separate SC injections 24 weeks apart in an unblinded manner. The first dose of FP-014, 22.5 mg will be administered on Day 0 (Visit 2/Week 1). When patients have tolerated the first dose of FP-014, 22.5 mg and have achieved castrate levels of serum testosterone, a second dose will be administered on Day 168 (Visit 14/Week 24) to achieve castrate levels of serum testosterone concentrations (\< 50 ng/dL). Patients will be followed for efficacy, safety, tolerability, and ancillary clinical and laboratory markers for an additional 24-week observation period (Day 336/Week 48/ Visit 24) Blood samples will be collected at Baseline (Day 0/Week 1) at least 30 minutes before the first FP-014, 22.5 mg administration, immediately thereafter and at specified time points through Day 336 (Week 48) to determine PK (triptorelin) and pharmacodynamics (PD) (testosterone, PSA, and LH) profiles.
To evaluate the sustained castration testosterone level after two administrations of FP-014, 22.5 mg, the first 30 enrolled patients will be considered as a subset for PK assessments. For these 30 subjects, additional PK/PD analyses will be performed on dosing days to obtain an extended PK/PD profile of serum triptorelin and testosterone levels.
The efficacy assessments will be performed in both intent-to-treat (ITT) and per-protocol (PP) populations. Efficacy assessment will include the percentage of patients who reached the castrate levels (\< 50 ng/dL) of serum testosterone on Day 28 (± 2 days; Week 4) post the first dosing of FP-014, 22.5 mg. Furthermore, the effect of FP-014, 22.5 mg on serum levels of PSA, and LH will be assessed post the first and the second dosing of FP-014, 22.5 mg, respectively. Urinary tract signs and symptoms will be evaluated for efficacy using the International Prostate Symptom Score [I-PSS] and recorded in the electronic case report forms (eCRFs). The acute-on-chronic (surge) effect of serum testosterone and LH levels will also be monitored in all patients. In addition, the impact of FP-014, 22.5 mg, on the percentage (rate) of patients with PSA relapse, on the percentage of patients that achieves normal serum PSA level, and on the percentage of patients with an enhanced serum testosterone concentration suppression (\< 20 ng/dL) will be determined at the end of study.
All treatment emergent adverse events (TEAEs), including adverse events of interest (AEoI), that occur during the study period and serious adverse events (SAEs) that occur during the study period will be recorded in the eCRFs and followed until they are resolved or considered stable. In addition, all SAEs will be recorded and reported as required by local and international regulatory requirements.
Other safety assessments and their results including safety clinical laboratory parameters, vital signs, physical examination, resting 12-lead electrocardiogram (ECG), injection site reactions and bone pain (assessed using visual analog scale [VAS]) will also be recorded in the eCRF.
Patients who discontinue early should be encouraged to remain in the study for safety evaluations.
A Data Safety Monitoring Board (DSMB) composed of independent experts will review available safety results every 3 months, and on an ad hoc basis if deemed necessary, from the moment onwards when one month data is available from approximately 5% of enrolled patients until the last patient completes the study. The composition and responsibilities of the DSMB will be defined in a separate DSMB charter.
7,046 studies on the registry are indexed under Prostatic Neoplasms; 1,580 are open to participants now.
Browse Prostatic Neoplasms studies →Foresee Pharmaceuticals Co., Ltd. is the lead sponsor of 15 studies on the registry; 2 are open to participants now.
Of its 7 completed or terminated interventional studies of FDA-regulated products, 4 (57%) have results posted.
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Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Laboratory values at Screening:
Normal urinalysis results:
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).
Your pathology report is the document that shows this.
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.
It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.
Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.
A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
CYP3A is a group of enzymes, mainly CYP3A4, in the liver and gut that break down many medicines. Some medicines, supplements and foods (grapefruit, St John’s wort) slow them down or speed them up, which changes how much of a study drug stays in the body.
Studies list them so they can be avoided or switched; bring a list of everything you take, including supplements.
Histologically or cytologically confirmed
The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).
Your pathology report is the document that shows this.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Metastases
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ECOG performance status
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Life expectancy
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Absolute neutrophil count (ANC)
The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.
It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Platelets
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hemoglobin (Hb)
The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Bilirubin
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ULN (upper limit of normal)
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ALT and AST (liver enzymes)
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Creatinine clearance (CrCl)
How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
GFR and eGFR (kidney filtering)
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HbA1c
A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Biopsy and archival tissue
A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.
Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ECG (electrocardiogram)
A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Child-Pugh class
A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
CYP3A (CYP3A4) inhibitors and inducers
CYP3A is a group of enzymes, mainly CYP3A4, in the liver and gut that break down many medicines. Some medicines, supplements and foods (grapefruit, St John’s wort) slow them down or speed them up, which changes how much of a study drug stays in the body.
Studies list them so they can be avoided or switched; bring a list of everything you take, including supplements.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Each patient will receive 2 single doses of FP-014, 22.5 mg administered as SC injections. The two injections of the study drug will be administered 24 weeks apart; one injection at Baseline (Visit 2/Day 0/Week 1), and one at Visit 14 (Day 168/Week 24) to achieve castrate serum testosterone level (\< 50 ng/dL).
Drug: Triptorelin Mesylate
22.5 mg in a prefilled, ready-to-use, long-acting formulation
Primary Endpoints
The percentage of patients with a serum testosterone concentration suppressed to castrate levels (\< 50 ng/dL).
Time frame: Baseline to Week 4 (Day 28 ± 1 day) following the first SC injection of FP-014 (22.5 mg).
Primary Endpoints
The percentage of patients with serum testosterone concentration suppressed to castrate levels (\< 50 ng/dL)
Time frame: from Week 4 (Day 28 ± 1 day) through Week 48 (Day 336 ± 5 days).
Secondary Endpoints
The mean acute-on-chronic (surge) changes in serum testosterone and LH levels prior to the second injection.
Time frame: From injection through 48-72 hours after the second injection of FP-014, 22.5 mg
Secondary Endpoints
The mean change of serum LH levels.
Time frame: Baseline to Week 48/End of Study (EOS) (Day 336 ± 5 days).
Secondary Endpoints
The mean change of serum PSA levels.
Time frame: Baseline to Week 48/EOS (Day 336 ± 5 days)
Secondary Endpoints
The percentage of patients with: PSA relapse (defined as an increase in serum PSA of \> 50% PSA nadir after achieving serum PSA level ≤ 4 ng/mL post administration of FP-014, 22.5 mg.
Time frame: Week 48/EOS (Day 336 ± 5 days)
Secondary Endpoints
The percentage of patients with: Within normal limit serum PSA level (≤ 4 ng/mL)
Time frame: Week 48/EOS (Day 336 ± 5 days)
Secondary Endpoints
The percentage of patients with enhanced serum testosterone concentration suppression to \< 20 ng/dL.
Time frame: Week 4 (Day 28 ± 1 day) and at Week 48/EOS (Day 336 ± 5 days.
Secondary Endpoints
Urinary signs and symptoms, i.e. a patient-reported outcome (PRO) assessed by the total score of the International Prostate Symptom Score (I-PSS) (Range 0-35 with 35 being the worst symptoms)
Time frame: Baseline to Week 48/EOS (Day 336 ± 5 days).
No study locations are listed for this record.
Plan to share: No
No publications or documents are linked to this record.
Start is estimated for Jun 2025; primary completion for Nov 2027, 29 months later.
How these figures are worked out, and which studies are left out of them.
This study is withdrawn, as verified in Jan 2025. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: Triptorelin
Foresee Pharmaceuticals Co., Ltd.