HealthyPhase 1NCT04314037
Bioequivalence Study of Coated Cesol Tablet Formulation Versus Biltricide
A Phase 1 study testing Cesol (Test) and Biltricide (Reference) in people with Healthy, run by Merck Healthcare KGaA, Darmstadt, Germany, an affiliate of Merck KGaA, Darmstadt, Germany at 1 site in Germany.
Trial summary
The purpose of this study is to assess the bioequivalence (BE) of new coated Cesol tablet (Test) versus Biltricide tablets (Comparator) in healthy male participants. Praziquantel (rac-PZQ) is the active ingredient for Cesol and Biltricide tablets. Read more about this study
- Who is it for?
- Ages 18 to 55 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Healthy
- What is being tested?
- Cesol (Test) and Biltricide (Reference)
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 36 participants
- Where
- 1 siteGermany
- Study dates
- 17 Jun 2020to 30 Jul 2020
- Phase
- Phase 1
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 55 years
- Men only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Participants who are overtly healthy as determined by medical evaluation, including medical history, physical examination, laboratory tests, and cardiac monitoring
- Nonsmoker (=0 cigarettes, pipes, cigars or others) since at least 3 months
- Have a body weight within 55.0 to 95.0 kilogram (kg) and body mass index within the range of 18.5 to 29.9 kilogram per meter squared (kg/m^2)
- Electrocardiogram recording (12-lead) without signs of clinically relevant pathology in particular heart-rate corrected [QTc] (Bazett) <450 milliseconds (ms)
- Vital signs should be in normal range (systolic blood pressure: 90 to 140 millimeters of mercury [mmHg]; diastolic blood pressure: 50 to 90 mmHg; pulse rate: 50 to 90 beats per minute [bpm]; auricular body temperature between 35.9 degree centigrade [°C] to 37.6°C)
- Are males agreeing to refrain from donating sperm, Use a male condom when having sexual intercourse with a woman of child-bearing potential, who is not currently pregnant, and advise her to use a highly effective contraceptive method with a failure rate of less than (< )1 percent (%) per year
- Other protocol defined inclusion criteria could apply
Who cannot join
- Any condition, including any clinically relevant abnormality in the safety laboratory parameters as judged by the Investigator, that in the Investigator's opinion constitutes an inappropriate risk or a contraindication for participation in the study or that could interfere with the study objectives, conduct, or evaluation
- Have positive results from serology examination for Hepatitis B surface antigen (indicative of active Hepatitis B), Hepatitis C Virus or Human Immunodeficiency Virus (Human Immunodeficiency Virus 1/2 antibodies)
- Participants who have used drugs that may affect the pharmacokinetics of rac-PZQ from 15 days before dosing until the last PK sample, example., phenytoin, barbiturates, primidone, carbamazapine, oxcarbazepine, topiramate, felbamate, rifampicin, nelfinavir, ritonavir, griseofulvin, oral ketoconazole
- Positive test for drugs of abuse (including alcohol) at Screening and prior to each dosing
- Unlikely to comply with the protocol requirements, instructions and study-related restrictions; example, uncooperative attitude, inability to return for follow-up visits, and improbability of completing the study
- Participant is the Principal Investigator or any Sub investigator, research assistant, pharmacist, study coordinator, other staff or relative thereof directly involved in the conduct of the study
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- Inability to communicate or cooperate with the Investigator (example. language problem, illiterates, poor mental status) or to comply with the requirements of the entire study, including dietary restrictions
- Vulnerable participants (example., persons kept in detention).
- Legal incapacity or limited legal capacity
- Other protocol defined exclusion criteria could apply
Trial locations and contacts
1 site in 1 country.
About this study
Official title: A Phase I, Open-label, Randomized, Four-period, Crossover, Fully Replicated, Reference-scaled, Single Center Study to Assess the Bioequivalence of a Single Oral Dose of 1200 mg of the Coated Cesol Tablet Formulation Versus Comparator Biltricide® in Healthy Male Volunteers
The purpose of this study is to assess the bioequivalence (BE) of new coated Cesol tablet (Test) versus Biltricide tablets (Comparator) in healthy male participants. Praziquantel (rac-PZQ) is the active ingredient for Cesol and Biltricide tablets.
- Conditions
- Healthy
- Being tested
- Cesol (Test), Biltricide (Reference)
- Keywords
- Bioavailability, Bioequivalence, Praziquantel, Cesol, Pharmacokinetics
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Cesol (Test)Drug
Also called Praziquantel
Participant will receive coated cesol tablet in sequence 1 (Day 1 and Day 15) and in sequence 2 (Day 8 and Day 22). A washout period of 7 days will be maintained between 4 treatment periods.
Biltricide (Reference)Drug
Also called Praziquantel
Participant will receive biltricide tablet in Sequence 1 (Day 8 and Day 22) and in sequence 2 (Day 1 and Day 15). A washout period of 7 days will be maintained between 4 treatment periods.
| Study group | Role | What they receive |
|---|---|---|
| Sequence 1 (T1-R1-T2-R2) | Experimental | Participants will receive first dose of Cesol on Day 1 in treatment period 1 followed by first dose of Biltricide on Day 8 in treatment period 2 followed by second dose of Cesol on Day 15 in treatment period 3 followed by second dose of Biltricide on Day 22 in treatment period 4. A washout period of 7 days will be maintained between 4 treatment periods. Receives: Drug: Cesol (Test); Drug: Biltricide (Reference) |
| Sequence 2 (R1-T1-R2-T2) | Experimental | Participants will receive first dose of Biltricide on Day 1 in treatment period 1 followed by first dose of Cesol on Day 8 in treatment period 2 followed by second dose of Biltricide on Day 15 in treatment period 3 followed by second dose of Cesol on Day 22 in treatment period 4. A washout period of 7 days will be maintained between 4 treatment periods. Receives: Drug: Cesol (Test); Drug: Biltricide (Reference) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Maximum Observed Plasma Concentration (Cmax) of Racemic-Praziquantel (Rac-PZQ)
Cmax was obtained directly from the concentration versus time curve.
Measured: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Area Under the Plasma Concentration-Time Curve From Time Zero to Last Measurable Concentration (AUC0-t) of Racemic-Praziquantel (Rac-PZQ)
Area under the plasma concentration versus time curve from time zero to the last sampling time t at which the concentration was at or above the lower limit of quantification (LLQ). AUC0-t was calculated according to the mixed log-linear trapezoidal rule.
Measured: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Secondary outcomes (14)
Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Treatment Related TEAEs
Adverse event (AE): any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of study drug, whether or not considered related to the study drug. Serious AE: an AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial or prolonged inpatient hospitalization; congenital anomaly/birth defect or was otherwise considered medically important. TEAE: AE with onset after start of treatment or with onset date before the treatment start date but worsening after the treatment start date. TEAEs included both serious and non-serious TEAEs. Treatment-related TEAEs: reasonably related to the study intervention. Number of participants with TEAEs and treatment related TEAEs were reported.
Measured: Baseline up to Day 27
Number of Participants With Treatment Emergent Adverse Events (TEAEs) by Severity According to Qualitative Toxicity Scale
Severity of TEAEs were graded using Qualitative Toxicity Scale, as follows: Mild: Participant is aware of the event or symptom, but the event or symptom is easily tolerated; Moderate: Participant experiences sufficient discomfort to interfere with or reduce his or her usual level of activity; Severe: Significant impairment of functioning: the participant is unable to carry out his or her usual activities. Number of participants with TEAEs by severity were reported.
Measured: Baseline up to Day 27
Number of Participants With Clinically Relevant Changes From Baseline in Laboratory Parameters
Laboratory investigation included hematology, biochemistry and urinalysis. Clinical relevance was determined by the investigator. The number of participants with clinically relevant changes from baseline in laboratory parameters were reported.
Measured: Baseline up to Day 27
Number of Participants With Clinically Relevant Changes From Baseline in Vital Signs
Vital signs included body temperature, systolic and diastolic blood pressure and pulse rate. Clinical relevance was determined by the investigator. The number of participants with clinically relevant changes from baseline in vital signs were reported.
Measured: Baseline up to Day 27
Number of Participants With Clinically Significant Changes From Baseline in 12-Lead Electrocardiogram (ECG) Findings
12-lead ECG recordings included rhythm, heart rate (as measured by RR interval), PR interval, QRS duration and QT interval. The corrected QT interval (QTcF) was calculated using Fridericia's formula. 12-lead ECG recordings were obtained after the participants have rested for at least 10 minutes in semisupine position. Clinical significance was determined by the investigator. The number of participants with clinically significant changes from baseline in 12-Lead ECG findings were reported.
Measured: Baseline up to Day 27
Maximum Observed Plasma Concentration (Cmax) of Praziquantel (PZQ) Enantiomers: R-(-)-PZQ and S-(+) PZQ
Cmax was obtained directly from the concentration versus time curve.
Measured: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Area Under the Plasma Concentration-Time Curve From Time Zero to Last Measurable Concentration (AUC0-t) of Praziquantel (PZQ) Enantiomers: R-(-)-PZQ and S-(+)-PZQ
Area under the plasma concentration versus time curve from time zero to the last sampling time t at which the concentration was at or above the lower limit of quantification (LLQ). AUC0-t was calculated according to the mixed log-linear trapezoidal rule.
Measured: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Area Under the Plasma Concentration-time Curve From Time Zero Extrapolated to Infinity (AUC0-inf) of Racemic-Praziquantel (Rac-PZQ), R-(-)-PZQ and S-(+)-PZQ
AUC0-inf was calculated by combining AUC0-t and AUCextra. AUCextra represents an extrapolated value obtained by Clast pred/Lambda z, where Clast pred was the calculated plasma concentration at the last sampling time point at which the measured plasma concentration is at or above the Lower Limit of quantification (LLQ) and Lambda z was the apparent terminal rate constant determined by log-linear regression analysis of the measured plasma concentrations of the terminal log-linear phase.
Measured: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Time to Reach Maximum Plasma Concentration (Tmax) of Racemic-Praziquantel (Rac-PZQ), R-(-)-PZQ and S-(+)-PZQ
Tmax was obtained directly from the concentration versus time curve.
Measured: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Time Prior to the First Measurable (Non-zero) Concentration (Tlag) of Racemic-Praziquantel (Rac-PZQ), R-(-)-PZQ and S-(+)-PZQ
Time prior to the first measurable (non-zero) concentration; calculated as last time point at which the concentration is less than (<) Lower Limit of Quantification (LLQ) before the occurrence of the first quantifiable concentration.
Measured: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Terminal Elimination Half-Life (T1/2) of Racemic-Praziquantel (Rac-PZQ), R-(-)-PZQ and S-(+)-PZQ
Elimination Half Life (T1/2) was defined as the time required for the concentration or amount of drug in the body to be reduced by one-half. T1/2 was calculated by natural log 2 divided by Lambda z. Lambda z was determined from the terminal slope of the log-transformed plasma concentration curve using linear regression method.
Measured: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Terminal Rate Constant (Lambda z) of Racemic-Praziquantel (Rac-PZQ), R-(-)-PZQ and S-(+)-PZQ
Lambda z was determined from the terminal slope of the log-transformed plasma concentration curve using linear regression method.
Measured: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Apparent Clearance (CL/f) of Racemic-Praziquantel (Rac-PZQ), R-(-)-PZQ and S-(+)-PZQ
CL/f was a measure of the rate at which a drug was metabolized or eliminated by normal biological processes. CL/f was calculated as Dose/AUC0-inf, where AUC0-inf was estimated by determining the total area under the curve of the concentration versus time curve extrapolated to infinity. AUC0-inf was calculated as AUC0-t + Clast pred/Lambda Z, where Clast pred was the calculated plasma concentration at the last sampling time point at which the measured plasma concentration was at or above the lower limit of quantification (LLQ) and Lambda Z was the apparent terminal rate constant determined from the terminal slope of the log-transformed plasma concentration curve.
Measured: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Apparent Volume of Distribution During Terminal Phase (Vz/f) of Racemic-Praziquantel (Rac-PZQ), R-(-)-PZQ and S-(+)-PZQ
Vz/f: the distribution of a study drug between plasma and the rest of the body after oral dosing. For single dose Vz/f = Dose/(AUC0-inf*Lambda Z), where AUC0-inf = (AUC0-t + Clast pred/Lambda Z). Clastpred was the calculated plasma concentration at the last sampling time point at which the measured plasma concentration was at or above the LLQ and Lambda Z = the apparent terminal rate constant determined from the terminal slope of the log-transformed plasma concentration curve.
Measured: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Mar 2020
- Study start17 Jun 2020
- Primary completion30 Jul 2020
- Study completion30 Jul 2020
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for HealthyStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Enrolment
- 36 participants (actual)
Sponsor and investigators
- Lead sponsor
- Merck Healthcare KGaA, Darmstadt, Germany, an affiliate of Merck KGaA, Darmstadt, Germany
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Medical Responsible, Study director, Merck Healthcare KGaA, Darmstadt, Germany, an affiliate of Merck KGaA, Darmstadt, Germany
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04314037
- Sponsor's protocol ID
- MS200585_0004
- Other IDs
- 2019-002868-27, 2019
- Status last verified
- Jun 2021
- First submitted
- 17 Mar 2020
- Last updated
- 13 Aug 2021
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: Per company policy, following approval of a new product or a new indication for an approved product in both the EU and the US, Merck Healthcare KGaA, Darmstadt, Germany, an affiliate of Merck KGaA, Darmstadt, Germany, will share study protocols, anonymized patient level and study level data and redacted clinical study reports from clinical trials in patients with qualified scientific and medical researchers, upon request, as necessary for conducting legitimate research. Further information on how to request data can be found on our website https://www.merckgroup.com/en/research/our-approach-to-research-and-development/healthcare/clinical-trials/commitment-responsible-data-sharing.html
Study at a glance
From the registry record, last updated by the sponsor on 13 Aug 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase I, Open-label, Randomized, Four-period, Crossover, Fully Replicated, Reference-scaled, Single Center Study to Assess the Bioequivalence of a Single Oral Dose of 1200 mg of the Coated Cesol Tablet Formulation Versus Comparator Biltricide® in Healthy Male Volunteers
- ClinicalTrials.gov ID
- NCT04314037
- Acronym / sponsor ID
- MS200585_0004
- Conditions
- Healthy
- Keywords
- Bioavailability, Bioequivalence, Praziquantel, Cesol, Pharmacokinetics
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 36 participants (actual)
- Lead sponsor
- Merck Healthcare KGaA, Darmstadt, Germany, an affiliate of Merck KGaA, Darmstadt, GermanyIndustry (pharma, biotech, devices)
- Study start
- 17 Jun 2020 (actual)
- Primary completion
- 30 Jul 2020 (actual)
- Study completion
- 30 Jul 2020 (actual)
- First posted
- 18 Mar 2020 (actual)
- Results
- Posted 13 Aug 2021
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to assess the bioequivalence (BE) of new coated Cesol tablet (Test) versus Biltricide tablets (Comparator) in healthy male participants. Praziquantel (rac-PZQ) is the active ingredient for Cesol and Biltricide tablets.
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Sequence 1 (T1-R1-T2-R2) | Experimental | Drug: Cesol (Test), Drug: Biltricide (Reference)Participants will receive first dose of Cesol on Day 1 in treatment period 1 followed by first dose of Biltricide on Day 8 in treatment period 2 followed by second dose of Cesol on Day 15 in treatment period 3 followed by second dose of Biltricide on Day 22 in treatment period 4. A washout period of 7 days will be maintained between 4 treatment periods. |
| Sequence 2 (R1-T1-R2-T2) | Experimental | Drug: Cesol (Test), Drug: Biltricide (Reference)Participants will receive first dose of Biltricide on Day 1 in treatment period 1 followed by first dose of Cesol on Day 8 in treatment period 2 followed by second dose of Biltricide on Day 15 in treatment period 3 followed by second dose of Cesol on Day 22 in treatment period 4. A washout period of 7 days will be maintained between 4 treatment periods. |
Who may qualify
- Ages
- 18 to 55 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (7 listed)
- Participants who are overtly healthy as determined by medical evaluation, including medical history, physical examination, laboratory tests, and cardiac monitoring
- Nonsmoker (=0 cigarettes, pipes, cigars or others) since at least 3 months
- Have a body weight within 55.0 to 95.0 kilogram (kg) and body mass index within the range of 18.5 to 29.9 kilogram per meter squared (kg/m^2)
- Electrocardiogram recording (12-lead) without signs of clinically relevant pathology in particular heart-rate corrected [QTc] (Bazett) <450 milliseconds (ms)
- Vital signs should be in normal range (systolic blood pressure: 90 to 140 millimeters of mercury [mmHg]; diastolic blood pressure: 50 to 90 mmHg; pulse rate: 50 to 90 beats per minute [bpm]; auricular body temperature between 35.9 degree centigrade [°C] to 37.6°C)
Key exclusion criteria (10 listed)
- Any condition, including any clinically relevant abnormality in the safety laboratory parameters as judged by the Investigator, that in the Investigator's opinion constitutes an inappropriate risk or a contraindication for participation in the study or that could interfere with the study objectives, conduct, or evaluation
- Have positive results from serology examination for Hepatitis B surface antigen (indicative of active Hepatitis B), Hepatitis C Virus or Human Immunodeficiency Virus (Human Immunodeficiency Virus 1/2 antibodies)
- Participants who have used drugs that may affect the pharmacokinetics of rac-PZQ from 15 days before dosing until the last PK sample, example., phenytoin, barbiturates, primidone, carbamazapine, oxcarbazepine, topiramate, felbamate, rifampicin, nelfinavir, ritonavir, griseofulvin, oral ketoconazole
- Positive test for drugs of abuse (including alcohol) at Screening and prior to each dosing
- Unlikely to comply with the protocol requirements, instructions and study-related restrictions; example, uncooperative attitude, inability to return for follow-up visits, and improbability of completing the study
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Cesol (Test)Also: PraziquantelParticipant will receive coated cesol tablet in sequence 1 (Day 1 and Day 15) and in sequence 2 (Day 8 and Day 22). A washout period of 7 days will be maintained between 4 treatment periods. | Drug | Sequence 1 (T1-R1-T2-R2), Sequence 2 (R1-T1-R2-T2) |
| Biltricide (Reference)Also: PraziquantelParticipant will receive biltricide tablet in Sequence 1 (Day 8 and Day 22) and in sequence 2 (Day 1 and Day 15). A washout period of 7 days will be maintained between 4 treatment periods. | Drug | Sequence 1 (T1-R1-T2-R2), Sequence 2 (R1-T1-R2-T2) |
Primary outcome
Maximum Observed Plasma Concentration (Cmax) of Racemic-Praziquantel (Rac-PZQ)
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Cmax was obtained directly from the concentration versus time curve.
Area Under the Plasma Concentration-Time Curve From Time Zero to Last Measurable Concentration (AUC0-t) of Racemic-Praziquantel (Rac-PZQ)
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Area under the plasma concentration versus time curve from time zero to the last sampling time t at which the concentration was at or above the lower limit of quantification (LLQ). AUC0-t was calculated according to the mixed log-linear trapezoidal rule.
14 secondary outcomes
Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Treatment Related TEAEs
Time frame: Baseline up to Day 27
Number of Participants With Treatment Emergent Adverse Events (TEAEs) by Severity According to Qualitative Toxicity Scale
Time frame: Baseline up to Day 27
Number of Participants With Clinically Relevant Changes From Baseline in Laboratory Parameters
Time frame: Baseline up to Day 27
Number of Participants With Clinically Relevant Changes From Baseline in Vital Signs
Time frame: Baseline up to Day 27
Number of Participants With Clinically Significant Changes From Baseline in 12-Lead Electrocardiogram (ECG) Findings
Time frame: Baseline up to Day 27
Maximum Observed Plasma Concentration (Cmax) of Praziquantel (PZQ) Enantiomers: R-(-)-PZQ and S-(+) PZQ
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Area Under the Plasma Concentration-Time Curve From Time Zero to Last Measurable Concentration (AUC0-t) of Praziquantel (PZQ) Enantiomers: R-(-)-PZQ and S-(+)-PZQ
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Area Under the Plasma Concentration-time Curve From Time Zero Extrapolated to Infinity (AUC0-inf) of Racemic-Praziquantel (Rac-PZQ), R-(-)-PZQ and S-(+)-PZQ
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Time to Reach Maximum Plasma Concentration (Tmax) of Racemic-Praziquantel (Rac-PZQ), R-(-)-PZQ and S-(+)-PZQ
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Time Prior to the First Measurable (Non-zero) Concentration (Tlag) of Racemic-Praziquantel (Rac-PZQ), R-(-)-PZQ and S-(+)-PZQ
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Terminal Elimination Half-Life (T1/2) of Racemic-Praziquantel (Rac-PZQ), R-(-)-PZQ and S-(+)-PZQ
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Terminal Rate Constant (Lambda z) of Racemic-Praziquantel (Rac-PZQ), R-(-)-PZQ and S-(+)-PZQ
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Apparent Clearance (CL/f) of Racemic-Praziquantel (Rac-PZQ), R-(-)-PZQ and S-(+)-PZQ
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Apparent Volume of Distribution During Terminal Phase (Vz/f) of Racemic-Praziquantel (Rac-PZQ), R-(-)-PZQ and S-(+)-PZQ
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Aug 2021.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Trial Awareness and Transparency websiteLink provided by the sponsor.
- Medical Information Location Map - Med Info ContactsLink provided by the sponsor.
- Individual participant dataSharing planned: No. Per company policy, following approval of a new product or a new indication for an approved product in both the EU and the US, Merck Healthcare KGaA, Darmstadt, Germany, an affiliate of Merck KGaA, Darmstadt, Germany, will share study protocols, anonymized patient level and study level data and redacted clinical study reports from clinical trials in patients with qualified scientific and medical researchers, upon request, as necessary for conducting legitimate research. Further information on how to request data can be found on our website https://www.merckgroup.com/en/research/our-approach-to-research-and-development/healthcare/clinical-trials/commitment-responsible-data-sharing.html
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Medical Responsible study director
Merck Healthcare KGaA, Darmstadt, Germany, an affiliate of Merck KGaA, Darmstadt, Germany
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing Cesol (Test) and Biltricide (Reference) in people with Healthy, run by Merck Healthcare KGaA, Darmstadt, Germany, an affiliate of Merck KGaA, Darmstadt, Germany at 1 site in Germany.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 7 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 13 Aug 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 13 Aug 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Maximum Observed Plasma Concentration (Cmax) of Racemic-Praziquantel (Rac-PZQ) (time frame: Pre-dose, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0 and 12 hours post-dose in each treatment period). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Aug 2021.