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BioavailabilityPhase 1NCT03905564

A Study to Investigate Differences in the Extent and Rate of Absorption of Doxylamine/Pyridoxine From 2 Different Products Under Fasting Conditions

A Phase 1 study testing doxylamine succinate 10 mg/pyridoxine hydrochloride 10 mg combination and Diclegis (Registered Trademark) in people with Bioavailability, run by Grünenthal GmbH.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

The purpose of the study is to investigate any difference in the extent and rate of absorption of doxylamine between the test (investigational medicinal product [IMP]) and reference products that could impact the bioavailability of the medication when administered under fasting conditions. Read more about this study

Who is it for?
Ages 18 to 55 years, women onlyHealthy volunteers can take part
Conditions the study is for
Bioavailability
What is being tested?
doxylamine succinate 10 mg/pyridoxine hydrochloride 10 mg combination and Diclegis (Registered Trademark)
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
No sites listed yet
Study dates
Jun 2019to Jun 2020
Phase
Phase 1
Are there results?
None posted in the registry

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
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Participation will be voluntary and according to the guidelines proposed by the Health General Law and informed consent will be obtained according to the previously mentioned law. In addition, the study will be conducted according to the ethical principles that have their origin in the Declaration of Helsinki, the review of Brazilian laws, and Good Clinical Practice.
  • Only healthy female participants aged between 18 and 55 years will be included.
  • The body mass index must be between 18.0 and 27.0 kilograms per square meter according to the Quetelet index.
  • Participants must be willing to use contraceptive methods (including barrier methods, non-hormonal intra-uterine device, or have a preexistent bilateral tubal ligation) during the conduct of the study and for up to 3 weeks after the last dose is administered.
  • Participants must be healthy as determined by the results of a complete clinical history recorded by the clinical investigational site physicians and the results of the laboratory examinations and 12-lead electrocardiogram done by a certified clinical laboratory.
  • The allowed limits of variation within normal in the screening visit will be: systolic blood pressure (sitting) less or equal to 120 mmHg, diastolic blood pressure less or equal to 80 mm Hg, heart rate between 50 and 100 beats per minute and respiratory rate between 14 and 20 breaths per minute according to the current standard operating procedure. Vital signs will be measured after 10 minutes of resting in a sitting position.
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  • Laboratory and other examinations to be conducted for the inclusion of participants will be:
  • Complete blood count: leukocytes, erythrocytes, hemoglobin, hematocrit, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, erythrocyte distribution width, platelets, neutrophils, lymphocytes, monocytes, eosinophils, basophils.
  • Blood chemistry 27 elements: glucose, urea, blood urea nitrogen (BUN), creatinine, BUN/creatinine ratio, uric acid, cholesterol, high-density lipoprotein (HDL) cholesterol, triglycerides, low-density lipoprotein cholesterol, non-HDL cholesterol, atherogenic index, total protein, albumin, globulins, albumin/globulin ratio, total bilirubin, direct bilirubin, indirect bilirubin, aspartate aminotransferase, alanine aminotransferase, total alkaline phosphatase, gamma-glutamyl transferase, lactate dehydrogenase, iron, calcium, sodium, potassium, and chloride.
  • Urinalysis: Physical examination (color, appearance, density); chemical examination (pH, leukocytes, nitrite, protein, glucose, ketones, bilirubin, urobilinogen, hemoglobin); microscopic examination (leukocytes, erythrocytes, dysmorphic erythrocytes, casts, crystals, squamous epithelial cells, tubular renal cells, mucus, bacteria and yeasts).
  • Hepatitis B screening (Anti-HBc = Antibody to hepatitis B core antigen, HBs-Ab = antibody to hepatitis B surface antigen, Anti-HBs = antibody to hepatitis B surface antigen) and hepatitis C antibodies.
  • HIV test: Antibodies to the human immunodeficiency virus (Anti-HIV 1 and 2).
  • Venereal disease research laboratory (VDRL) test.
  • Urine drugs of abuse test at the screening visit and at approximately 12 hours prior to the administration of the IMP in both study periods.
  • Alcohol breath test approximately 12 hours prior to the administration of the IMP in both study periods.
  • Serum pregnancy test (beta-human chorionic gonadotropin) at the screening visit and urine pregnancy test (qualitative) at approximately 12 hours prior to the administration of the IMP in both study periods.
  • 12-lead electrocardiogram which will be performed after resting for 10 minutes in a sitting position.

Who cannot join

  • Participants with a history of the following diseases: cardiovascular, renal, hepatic, muscular, metabolic, gastrointestinal, neurologic, psychiatric, hematopoietic, respiratory, urinary, or other organic abnormalities as well as those participants who have had muscular trauma within 21 days previous to the study will also be excluded.
  • Participants who require any kind of medication during the course of the study, apart from the IMP.
  • Participants with a history of dyspepsia, gastritis, esophagitis, duodenal, or gastric ulcer, pyloro-duodenal obstruction, asthma, and urinary bladder obstruction.
  • Participants with angle-closure glaucoma.
  • Current or recent (within 14 days prior to administration of the IMP) use of monoamine oxidase inhibitors (MAOIs).
  • Participants who have been exposed to enzyme or hepatic inducers or inhibitors within 30 days previous to the start of the study.
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  • Participants who have taken any type of medication including vitamin supplements (with or without prescription) or herbal remedies (e.g., St John's wort) within 30 days (or 7 half-lives) previous to the start of the study.
  • Participants who have been hospitalized for any reason within 6 months prior to the start of the study.
  • Participants who have taken IMPs from other investigations within 90 days prior to study start.
  • Participants with a history of allergy or hypersensitivity to the study medication (doxylamine/pyridoxine), any other medication, food, or substance.
  • Participants who have consumed alcohol, carbonated beverages and/or or beverages that contain methylxanthines (coffee, tea, cocoa, chocolate, mate, cola, etc.), grapefruit juice, or charbroiled foods within 12 hours prior to the start of the hospitalization period as well as participants who have smoked tobacco within 12 hours prior to the study start.
  • Participants who have donated or lost more than 450 milliliters of blood within 60 days prior to study start.
  • Current or recent use of depressants of the central nervous system such as alcohol.
  • Participants with a history of dependence/abuse of alcohol, psychoactive substances or chronic use of medications.
  • Participants requiring a special diet for any reason, e.g., vegetarian.
  • Participants unable to understand the nature, objectives, and possible consequences of the study.
  • Evidence of the participant's uncooperativeness during the conduct of the study.
  • Participants with positive test results for drugs of abuse, pregnancy and/or alcohol in breath.
  • Participants currently lactating.
  • Participants receiving hormonal therapy via any route of administration.
  • Participants who are not registered in the Comisión Federal para la Protección contra Riesgos Sanitarios (COFEPRIS) webpage.
  • Relationship of subordination between the participants and the investigators.
  • Sponsor or clinical site employees.

About this study

Official title: Single Site, Open-label, Randomized, Two Treatments, Two Periods, Two Sequences, Crossover Trial to Evaluate the Bioequivalence of Two Delayed-release Oral Formulations of a Fixed Combination of Doxylamine Succinate 10 mg/Pyridoxine Hydrochloride 10 mg (Test Product: Product of Tecnandina, S.A. TENSA; Reference Product: Diclegis (Registered Trademark) Product of Duchesnay Inc.) After a Single Administration of Two Tablets to Healthy Women Under Fasting Conditions

The purpose of the study is to investigate any difference in the extent and rate of absorption of doxylamine between the test (investigational medicinal product [IMP]) and reference products that could impact the bioavailability of the medication when administered under fasting conditions.

Read the detailed description

The objective of the study is to compare the bioavailability of doxylamine between two oral delayed-release formulations containing the fixed-dose combination of doxylamine succinate 10 milligrams (mg)/pyridoxine hydrochloride 10 mg

  • A product of Tecnandina, S.A. TENSA (Test) and
  • Diclegis (Registered Trademark), a product of Duchesnay Inc.(Reference) after an administration of a single dose equivalent to doxylamine succinate 20 mg and pyridoxine hydrochloride 20 mg (i.e., 2 tablets) under fasting conditions to determine bioequivalence in terms of rate and extent of absorption.

Furthermore, the tolerability of the fixed-dose combination doxylamine succinate 10 mg/pyridoxine hydrochloride 10 mg will be evaluated in healthy women in a dose equivalent to doxylamine succinate 20 mg and pyridoxine hydrochloride 20 mg.

Conditions
Bioavailability
Being tested
doxylamine succinate 10 mg/pyridoxine hydrochloride 10 mg combination, Diclegis (Registered Trademark)

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • doxylamine succinate 10 mg/pyridoxine hydrochloride 10 mg combinationDrug

    Delayed-release tablet containing a fixed-dose combination of doxylamine succinate 10 mg and pyridoxine hydrochloride 10 mg (product of Tecnandina, S.A. TENSA).

  • Diclegis (Registered Trademark)Drug

    Delayed-release tablet containing a fixed-dose combination of doxylamine succinate 10 mg and pyridoxine hydrochloride 10 mg (product of Duchesnay Inc.).

Study groups in NCT03905564
Study groupRoleWhat they receive
Doxylamine succinate/pyridoxine hydrochlorideExperimentalOral single dose equivalent to doxylamine succinate 20 mg and pyridoxine hydrochloride 20 mg (i.e., 2 tablets doxylamine succinate 10 mg/pyridoxine hydrochloride 10 mg combination) administered with 250 mL of water (at room temperature) under fasting conditions.
Receives: Drug: doxylamine succinate 10 mg/pyridoxine hydrochloride 10 mg combination
Diclegis (Registered Trademark)Active comparatorOral single dose equivalent to doxylamine succinate 20 mg and pyridoxine hydrochloride 20 mg (i.e., 2 tablets) administered with 250 mL of water (at room temperature) under fasting conditions.
Receives: Drug: Diclegis (Registered Trademark)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Area under the plasma concentration curve from the administration until the time t (AUC0-t) of doxylamine

    19 plasma samples will be collected from pre-dose to 48 hours post-dose. Doxylamine plasma concentrations will be determined using a high-performance liquid chromatography-tandem mass spectrometry bioanalytical assay.

    Measured: From pre-dose to 48 hours post-dose

  2. Maximum plasma concentration (Cmax) of doxylamine

    19 plasma samples will be collected from pre-dose to 48 hours post-dose. Doxylamine plasma concentrations will be determined using a high-performance liquid chromatography-tandem mass spectrometry bioanalytical assay.

    Measured: From pre-dose to 48 hours post-dose

Secondary outcomes (2)
  1. Area under the plasma concentration curve from 0 to infinity (AUC0-inf) of doxylamine

    19 plasma samples will be collected from pre-dose to 48 hours post-dose. Doxylamine plasma concentrations will be determined using a high-performance liquid chromatography-tandem mass spectrometry bioanalytical assay.

    Measured: From pre-dose to 48 hours post-dose

  2. Time to maximum plasma concentration (Tmax) for doxylamine

    19 plasma samples will be collected from pre-dose to 48 hours post-dose. Doxylamine plasma concentrations will be determined using a high-performance liquid chromatography-tandem mass spectrometry bioanalytical assay. Tmax will be calculated based on Cmax data for doxylamine.

    Measured: From pre-dose to 48 hours post-dose

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Apr 2019
  2. Study startJun 2019 (estimated)
  3. Primary completionJun 2020 (estimated)
  4. Study completionJun 2020 (estimated)

Why it stopped: Sponsor decision

Resources

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
Treatment
Allocation
Randomised
Intervention model
Crossover
Model description
Randomized, single-dose with two periods, two sequences (AB, BA; A = Reference and B = Test) crossover study in healthy participants under fasting conditions. Washout period between the two study periods will be at least 20 days.
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03905564
Sponsor's protocol ID
HP8012-01
Other IDs
DXLPRD-06-GRU, 17-CI-09 012 084
Status last verified
Jul 2019
First submitted
20 Feb 2019
Last updated
11 Jul 2019
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing doxylamine succinate 10 mg/pyridoxine hydrochloride 10 mg combination and Diclegis (Registered Trademark) in people with Bioavailability, run by Grünenthal GmbH.

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 17 inclusion and 23 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: withdrawn, as of the sponsor's last update on 11 Jul 2019. Status can change between updates, so confirm with the study contact before making plans.

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?

The study was withdrawn before enrolling participants, so there are no results.

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?

Area under the plasma concentration curve from the administration until the time t (AUC0-t) of doxylamine (time frame: From pre-dose to 48 hours post-dose). 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 11 Jul 2019.

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