Current partner codePEPTIDESDE
NCT05590793·Phase 3·INTERVENTIONAL

Effects of Triptorelin Pamoate 6-month When Given to Adult Chinese Participants With Advanced Cancer in the Prostate

Status

Completed

Phase

Phase 3

Enrollment

195

Locations

36

Results

Posted

Publications

0

Study summary

What the protocol is testing.

The main aim of this study is to assess the effectiveness and safety of the 6-month formulation of triptorelin pamoate in Chinese participants with locally advanced or metastatic cancer of the prostate. Participants will receive 1 injection of triptorelin pamoate 6-month formulation.

Interventions

Treatment arms and agents.

DRUG

Triptorelin pamoate (embonate) salt

Triptorelin pamoate 22.5 mg (6-month formulation), i.m. injection, single dose on Day 1.

Timeline

From registration to results.

  1. First posted

    Oct 21, 2022

  2. Study start

    Nov 17, 2022

  3. Primary completion

    Aug 20, 2024

  4. Study completion

    Aug 20, 2024

  5. Results posted

    Sep 9, 2025

  6. Registry updated

    Sep 9, 2025

Outcomes

What the study measures.

Primary outcomes

Percentage of Participants Who Achieved Castrate Levels of Serum Testosterone on Day 29

Time frame · Day 29

Blood samples were collected to determine the serum testosterone concentrations using a validated, specific and sensitive liquid chromatography tandem mass spectrometry (LC-MS/MS) method. Achievement of testosterone castration was defined as serum testosterone level \<50 nanograms per deciliter (ng/dL) or 1.735 nanomoles/liter (nmol/L). Percentages are rounded off to the tenth decimal place.

Percentage of Participants Who Maintained the Castrate Levels From Week 8 to Week 24

Time frame · From Week 8 to Week 24

Blood samples were collected to determine the serum testosterone concentrations using a validated, specific and sensitive LC-MS/MS method. Maintenance of castration was defined as serum testosterone level \<50 ng/dL or 1.735 nmol/L.

Secondary outcomes

Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Treatment-Emergent Serious Adverse Events (TESAEs) and Treatment-Emergent Adverse Events of Local Tolerance

Time frame · From the first dose of study intervention (Day 1) up to end of study visit (Week 24), approximately 169 days

An AE was any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An SAE was any untoward medical occurrence that, at any dose, resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, was a congenital abnormality/birth defect, or any other medically important event. TEAEs were AEs with start date on or after the date of study intervention administration and up to 24 weeks after date of first dose of treatment. Local tolerance was assessed 2 hours (+/-15 minutes) after the single injection of 6-month formulation triptorelin by examination of injection site for signs including but not limited to tenderness, erythema, swelling, hematoma, rash, pain, itching and induration.

Percent Change From Baseline in Prostate Specific Antigen (PSA) at Weeks 12 and 24

Time frame · Baseline (Day 1), Weeks 12 and 24

Blood samples were collected for the measurement of plasma PSA concentrations. Percent change in PSA was defined as the absolute value of difference between the PSA values at Week 12 and Week 24 and the baseline value divided by the baseline value. Baseline was defined as the last non-missing measurement taken prior to first study intervention administration.

Time to Maximum Observed Plasma Concentration (Tmax) of Triptorelin Pamoate

Time frame · Pre-dose, 1, 2, 3, 4, 6, 8, 12, 24, 48, 96 and 168 hours post-dose on Day 1, Days 15, 22, 29, 57, 85, 113, 141 and 169

Blood samples were collected at specified timepoints for the assessment of tmax of triptorelin pamoate. The PK parameters were performed using non-compartmental analysis.

Maximum Observed Plasma Concentration (Cmax) of Triptorelin Pamoate

Time frame · Pre-dose, 1, 2, 3, 4, 6, 8, 12, 24, 48, 96 and 168 hours post-dose on Day 1, Days 15, 22, 29, 57, 85, 113, 141 and 169

Blood samples were collected at specified timepoints for the assessment of Cmax of triptorelin pamoate. The PK parameters were performed using non-compartmental analysis.

Area Under the Plasma Concentration Time Curve From Time 0 to the Visit on Day 169 (AUC0-169) of Triptorelin Pamoate

Time frame · Pre-dose, 1, 2, 3, 4, 6, 8, 12, 24, 48, 96 and 168 hours post-dose on Day 1, Days 15, 22, 29, 57, 85, 113, 141 and 169

Blood samples were collected at specified timepoints for the assessment of AUC0-169 of triptorelin pamoate. The PK parameters were performed using non-compartmental analysis.

Area Under the Plasma Concentration Time Curve From Time 0 to the Last Quantifiable Concentration (AUClast) of Triptorelin Pamoate

Time frame · Pre-dose, 1, 2, 3, 4, 6, 8, 12, 24, 48, 96 and 168 hours post-dose on Day 1, Days 15, 22, 29, 57, 85, 113, 141 and 169

Blood samples were collected at specified timepoints for the assessment of AUClast of triptorelin pamoate. The PK parameters were performed using non-compartmental analysis.

Time to Maximum Observed Plasma Concentration of Testosterone

Time frame · Pre-dose on Day 1 and Days 2, 3, 5, 8, 15, 22, 29, 57, 85, 113, 141 and 169

Blood samples were collected at specified timepoints for the assessment of tmax of testosterone. The PD parameters were performed using non-compartmental analysis.

Maximum Observed Plasma Concentration of Testosterone

Time frame · Pre-dose on Day 1 and Days 2, 3, 5, 8, 15, 22, 29, 57, 85, 113, 141 and 169

Blood samples were collected at specified timepoints for the assessment of Cmax of testosterone. The PD parameters were performed using non-compartmental analysis.

Time to Castration of Testosterone

Time frame · Pre-dose on Day 1 and Days 2, 3, 5, 8, 15, 22, 29, 57, 85, 113, 141 and 169

Blood samples were collected at specified timepoints for the assessment of tcast of testosterone. tcast was defined as time to reach serum testosterone level \<50 ng/dL or 1.735 nmol/L. The PD parameters were performed using non-compartmental analysis.

Plasma Concentrations of Triptorelin Pamoate

Time frame · Pre-dose on Day 1 and post-dose at Weeks 4, 8, 12, 16, 20 and 24

Blood samples were collected at specified timepoints for the assessment of plasma concentration of triptorelin pamoate.

Eligibility

Who can take part.

Minimum age
18 Years
Maximum age
Not reported
Sex
MALE
Healthy volunteers
No

Inclusion Criteria : * Participant is capable of giving signed informed consent * Participant must be over 18 years of age, at the time of signing the informed consent. * Has a histologically or cytologically confirmed adenocarcinoma, locally advanced or metastatic prostate cancer. Or participant has PSA recurrence after curative treatment and be a candidate for androgen deprivation therapy (ADT). * Has serum testosterone level \>150 ng/dL (\> 5.2 nmol/L). * Has expected survival time ≥12 months according to the investigator's assessment. * Has Eastern Cooperative Oncology Group (ECOG) performance status score ≤1 Exclusion Criteria : * Risk of a serious complication in the case of tumour flare * Presence of another neoplastic lesion or brain metastases. * Previous history of QT prolongation or concomitant use of medicinal products known to prolong the QT interval or with a known risk of torsades de pointes. * Metastatic hormone-sensitive prostate cancer with high tumour burden. * Metastatic castration-resistant prostate cancer. * Previous surgical castration. * Previous hormone therapy (including abiraterone) for prostate cancer within 6 months prior to study start. * Previous cytotoxic chemotherapy treatment within 6 months prior to study screening. * Use of finasteride or dutasteride within 2 months prior to study screening. * Previous hypophysectomy or adrenalectomy * Any current use or use within 6 months prior to treatment start of medications which are known to affect the metabolism and/or secretion of androgenic hormones: ketoconazole, aminoglutethimide, oestrogens and antiandrogens. * Current use of systemic or inhaled corticosteroids (topical application permitted). * Any previous use of traditional Chinese medicine or herbal products within 1 month prior to study screening or planned use during the study of products, which are known to have cytotoxic effect or affect the metabolism and/or secretion of androgenic hormones * Participation in another study with an investigational drug or treatment within 3 months prior to study screening or within 5 drug half-lives of the investigational drug (whichever is the longer). * Severe kidney or liver impairment (creatinine \>2 x upper limit of normal (ULN), aspartate aminotransferase (AST) and alanine aminotransferase (ALT) \>3 x ULN). * Any concomitant disorder or resulting therapy that is likely to interfere with participant compliance, the i.m. administration of the drug or with the study in the opinion of the investigator. * Known hypersensitivity to triptorelin or any of its excipients, GnRH, other GnRH agonist/analogues. * Known active use of recreational drug or alcohol dependence in the opinion of the investigator.

Study locations

36 registered sites.

China. Showing up to 24 locations stored in the fast local snapshot.

Affiliated Hospital of Hebei University

Baoding, China

Beijing Hospital

Beijing, China

Peking University First Hospital

Beijing, China

Peking University People's Hospital

Beijing, China

Hunan Cancer Hospital

Changsha, China

West China Hospital of Sichuan University

Chengdu, China

Chongqing University Cancer Hospital

Chongqing, China

The First Affiliated Hospital of Chongqing Medical University

Chongqing, China

Deyang People's Hospital

Deyang, China

Sun Yat-Sen University Cancer Center

Guangzhou, China

Guizhou Provincial People's Hospital

Guiyang, China

The Affiliated Hospital of Guizhou Medical University

Guiyang, China

The First Affiliated Hospital, Zhejiang University School of Medicine

Hangzhou, China

Qilu Hospital of Shandong University

Jinan, China

Shandong Provincial Hospital

Jinan, China

Nanjing Drum Tower Hospital

Nanjing, China

Zhongda Hospital Southeast University

Nanjing, China

Ningbo First Hospital

Ningbo, China

Fudan University Shang Hai Cancer Center

Shanghai, China

Shanghai Fifth People's Hospital

Shanghai, China

Shanghai Tongji Hospital

Shanghai, China

Liaoning Cancer Hospital & Institute

Shenyang, China

The First Hospital of China Medical University

Shenyang, China

Peking University Shenzhen Hospital

Shenzhen, China

Publications

Results and literature.

No PMID-linked publications were present in this registry snapshot.

Primary links

Continue at the source.

Related trials

More studies on Triptorelin.

Related PeptideStat pages

Put the record in context.

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