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An Open-Label Trial Measuring Satisfaction And Convenience Of Two Formulations Of Lamotrigine In Subjects With A Mood Disorder

Information source: GlaxoSmithKline
ClinicalTrials.gov processed this data on August 23, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Mood Disorders

Intervention: Lamotrigine (Drug)

Phase: Phase 3

Status: Completed

Sponsored by: GlaxoSmithKline

Official(s) and/or principal investigator(s):
GSK Clinical Trials, Study Director, Affiliation: GlaxoSmithKline

Summary

To determine the convenience and satisfaction of new orally disintegrating tablet formulation (ODT) of lamictal in subjects with a mood disorder. This was a multicenter, open-label study in participants with a mood disorder, who reported difficulty or discomfort in swallowing the currently marketed IR compressed tablet formulation of lamotrigine and who had a person (such as a spouse, partner, companion, aid, nurse, caregiver, etc) willing to complete a Companion/Caregiver Question. Subjects were switched from the currently marketed lamotrigine IR formulation to a matching dose of lamotrigine IR orally disintegrating tablet (ODT) for 3 weeks to determine convenience and satisfaction.

Clinical Details

Official title: An Open-Label Trial Measuring Satisfaction and Convenience of Two Formulations of Lamotrigine in Subjects With a Mood Disorder

Study design: Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Primary outcome: Mean Change From Baseline in the Convenience Subscale Score (CSS) Derived From the Treatment Satisfaction Questionnaire for Medication (TSQM v 1.4) Using Items 9 (Ease of Use), 10 (Ease of Planning to Use), and 11 (Convenience) at Week 3.

Secondary outcome:

Mean Change From Baseline in the Global Satisfaction Subscale Score, From the TSQM Using Items 12 (Confidence in Medicine), 13 (Certainty That Good Things About Medication Outweigh Bad Things), and 14 (Satisfaction With Medication) at Week 3

Mean Change From Baseline in Clinical Global Impression of Illness-Severity at Week 3

Mean Change From Baseline in the Beck Depression Inventory (BDI-II) Score at Week 3

Number of Participants Answering the Question "Did the Tablets Dissolve Instantly (Yes or no)?" at Week 3

Number of Participants Answering the Question "How Satisfied or Dissatisfied Were You With the Time it Took the Tablet to Dissolve" at Week 3

Number of Participants Answering the Question "How Did the Dissolved Tablet Feel in Your Mouth?" at Week 3

Number of Participants Answering the Question "How Satisfied Were You With the Flavor of the Tablet?" at Week 3

Number of Participants Answering the Question "How Would You Rate the Strength of the Flavor of the Tablet"? at Week 3

Number of Participants Answering the Question "How Would You Rate the Aftertaste of the Tablet"? at Week 3.

Number of Participants Answering the Question "How Satisfied Were You With the Aftertaste of the Tablet"? at Week 3

Number of Participants Answering the Question "Compared to Standard Tablets That Need to be Swallowed With Liquid, How Convenient or Inconvenient Did You Find This Orally Disintegrating Tablet"? at Week 3

Number of Participants Answering the Question "Compared to Standard Tablets That Need to be Swallowed With Liquid, How Easy or Difficult is it to Use This Orally Disintegrating Tablet?" at Week 3

Number of Participants Indicating a Preference for ODT or the Standard IR Tablet at Week 3

Number of Companions/Caregivers Indicating Whether ODT or Standard IR Tablet is More Convenient at Week 3

Number of Participants Indicating at Week 3 (by Answering Yes/no) That They Would be More Likely to Take the ODT Formulation

Eligibility

Minimum age: 18 Years. Maximum age: N/A. Gender(s): Both.

Criteria:

Inclusion Criteria:

- Subject must have a documented diagnosis of a mood disorder as defined by Diagnostic

and Statistical Manual of Mental Disorders (DSM)-IV (296. 00-296. 90).

- Subject must have a person (such as a spouse, partner, companion, aid, nurse,

caregiver, etc) willing to complete a Companion/Caregiver Preference Question either in person or via the telephone. This individual must read, write, and comprehend English at a level sufficient to complete study-related assessments.

- Subject must have been taking a stable dose of currently marketed compressed tablet

formulation of lamotrigine IR for at least 4 weeks prior to Baseline (Day 1) of the study and must be adherent to the prescribed dosing regimen. The current dose must not exceed 600 mg/day.

- Subject's current lamotrigine IR dose, frequency and number of tablets per

administration must remain consistent between the IR and ODT regimens. However, the subject's current lamotrigine IR dose may be such that the subject would receive no more than one additional ODT per administration in order to equal their IR dose.

- Subject must currently report a difficulty or discomfort swallowing lamotrigine IR

compressed tablets, the nature of which is or will be documented. NOTE: A diagnosis of dysphagia is not required.

- Subject must have the ability to comprehend the consent form and provide informed

consent.

- Subject must read, write, and comprehend English at a level sufficient to complete

study-related assessments.

- Subject is a male or female at least 18 years of age.

- If female, the subject is eligible to enter and participate in this study if she is

not lactating and is of: 1. non-childbearing potential (i. e., physiologically incapable of becoming pregnant, including any female who is pre-menarchal or post-menopausal [defined as one year without menses]); is surgically sterile [via hysterectomy and/or removal of the ovaries] or, 2. child-bearing potential, has a negative pregnancy test at both Screening and/or Baseline (prior to Investigational Product administration), and agrees to one of the following requirements:

- has a male sexual partner who is surgically sterilized (vasectomy with documentation

of azoospermia) prior to Screening or,

- sexual partner(s) is/are exclusively female or,

- double barrier method: condom or occlusive cap (diaphragm or cervical/vault caps)

plus spermicidal agent (foam/gel/film/cream/suppository). The subject must be using this method for at least 1 week following the discontinuation of Investigational Product or,

- any intrauterine device (IUD) with published data showing that the highest expected

failure rate is less than 1% per year. Acceptable IUDs, for the purposes of this study, include TCu-380A (Paragard), TCU-380 Slimline (Gyne T Slimline), MULTILOAD-250 (MLCu-250) and 375, Levonorgesterol LNG-20 Intrauterine System (Mirena/Levonova), and Flexigard 330/CuFix PP330 (Gynefix).The subject must have had the device inserted at least 2 weeks prior to Screening, throughout the study, and 2 weeks following the discontinuation of Investigational Product. Exclusion Criteria:

- Subject has:

- a current (or within six months prior to Screening) diagnosis of anorexia nervosa or

bulimia.

- a diagnosis of a mood disorder due to a general medical condition, or substance abuse

per DSM-IV (293. 83).

- a diagnosis of schizophrenia or other psychotic disorders.

- Subject who meets current criteria of an acute mood disorder and has a CGI-S of ≥4 at

Screening.

- Subject who crushes lamotrigine IR compressed tablet prior to taking or receiving

medication orally.

- Subject who, in the investigator's judgment, poses a homicidal or serious suicidal

risk; has made a suicide attempt within the six months preceding Screening; or has ever been homicidal.

- Subject who has a score of 1 or greater on Suicidality item (Item 9) of the BDI-II at

Screening and/or Baseline.

- Subject has ever experienced a rash related to prior lamotrigine treatment, or for

whom treatment was discontinued for clinically significant safety reasons.

- Subject has a history of severe hepato-biliary disease within the past 3 years.

- Subject has any medical condition that, in the investigator's judgment, is considered

to be clinically significant and could potentially affect subject safety or study outcome.

- Subject has a positive urine test at Screening for illicit drug use and/or a history

of alcohol or substance abuse or dependence within the past 12 months.

- Subject is currently participating in another clinical study in which the subject is

or will be exposed to an investigational or non-investigational drug or device, or has done so within the preceding month for studies unrelated to the current illness, or six months for studies related to the current illness.

- Female subject is pregnant, lactating, or does not agree to use contraceptive

method(s) specified in the protocol to avoid pregnancy during the study.

Locations and Contacts

GSK Investigational Site, San Diego, California 92108, United States

GSK Investigational Site, Santa Ana, California 92705, United States

GSK Investigational Site, Jacksonville, Florida 32257, United States

GSK Investigational Site, Orange City, Florida 32763, United States

GSK Investigational Site, Winter Park, Florida 32792, United States

GSK Investigational Site, Marietta, Georgia 30060, United States

GSK Investigational Site, Fairview Heights, Illinois 62208, United States

GSK Investigational Site, Minneapolis, Minnesota 55454, United States

GSK Investigational Site, St. Charles, Missouri 63301, United States

GSK Investigational Site, Olean, New York 14760, United States

GSK Investigational Site, Raleigh, North Carolina 27609, United States

GSK Investigational Site, Cincinnati, Ohio 45243, United States

GSK Investigational Site, Cleveland, Ohio 44106, United States

GSK Investigational Site, Arlington, Texas 76012, United States

GSK Investigational Site, Houston, Texas 77014, United States

GSK Investigational Site, Houston, Texas 77042, United States

GSK Investigational Site, Norfolk, Virginia 23505, United States

GSK Investigational Site, Charleston, West Virginia 25301, United States

Additional Information

Related publications:

Sajatovic M, Thompson TR, Nanry K, Edwards S, Manjunath R. Prospective, open-label trial measuring satisfaction and convenience of two formulations of lamotrigine in subjects with mood disorders. Patient Prefer Adherence. 2013 May 7;7:411-7. doi: 10.2147/PPA.S40271. Print 2013.

Starting date: January 2008
Last updated: September 5, 2013

Page last updated: August 23, 2015

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