Vyvanse and Adderall XR Given Alone and in Combination With Prilosec OTC

A Phase I, Open-Label, Randomized, Four Period Crossover Drug Interaction Study to Evaluate the Pharmacokinetic Profiles of VYVANSE™ and ADDERALL XR When Each is Administered Alone and in Combination With the Proton Pump Inhibitor Prilosec OTC™ in Healthy Adult Volunteers

The purpose of this study is to determine if taking Vyvanse with Prilosec OTC or Adderall XR with Prilosec OTC changes how quickly the drug is absorbed into the body and/or changes how much of the drug is absorbed into the body.

Study Overview

• Status: Completed
• Conditions: Healthy Volunteers
• Intervention / Treatment: Drug: Lisdexamfetamine Dimesylate; Drug: Adderall XR (mixed salts amphetamine)

• Study Type: Interventional
• Enrollment (Actual): 24
• Phase: Phase 1

Contacts and Locations

Study Locations

• United States
  • Florida
    • Miami, Florida, United States, 33014
      • Clinical Pharmacology of Miami, Inc.

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 45 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

1. Healthy volunteers, age 18 to 45 inclusive at the time of consent.
2. Male, or non-pregnant, non-lactating female
3. Female subjects must have a negative serum beta Human Chorionic Gonadotropin (HCG) pregnancy test at Screening, and a negative urine pregnancy test on Day -1 after checking into the clinic the day before the first dose of investigational product.
4. Body Mass Index (BMI) between 20.0 and 30.0 kg/m² inclusive. This inclusion criterion will only be assessed at the first screening visit.
5. Satisfactory medical assessment with no significant or relevant abnormality in medical history, physical examination (PE), vital signs and laboratory evaluation
6. Normal or clinically insignificant Screening ECG findings as assessed by the Investigator.
7. Ability to swallow investigational products.

Exclusion Criteria:

1. Current or recurrent disease that could affect the action, absorption or disposition of the investigational products, or could affect clinical or laboratory assessments.
2. Current or relevant previous history of physical or psychiatric illness, any medical disorder that may require treatment or make the subject unlikely to fully comply with the requirements of the study or complete the study, or any condition that presents undue risk from the investigational products or study procedures.
3. Significant illness, as judged by the Investigator, within 2 weeks of the first dose of investigational product.
4. History of significant anxiety, tension or agitation as assessed by the Investigator.
5. History of or current diagnosis of glaucoma.
6. History of a seizure disorder (other than infantile febrile seizures), any tic disorder or a current diagnosis and/or known family history of Tourette's Disorder.
7. History of symptomatic cardiovascular disease, advanced arteriosclerosis, structural cardiac abnormality, cardiomyopathy, serious heart rhythm abnormalities, coronary artery disease, transient ischemic attack or stroke or other serious cardiac problems that may place them at increased vulnerability to the sympathomimetic effects of a stimulant drug.
8. History of controlled or uncontrolled hypertension or a resting sitting systolic blood pressure >139mmHg or diastolic blood pressure >89mmHg.
9. Known family history of sudden cardiac death or ventricular arrhythmia.
10. Currently considered a suicide risk, has previously made a suicide attempt or has a prior history of, or is currently demonstrating suicidal ideation.
11. Current use of any medication (including prescription, over the counter [OTC], herbal or homeopathic preparations) with the exception of hormonal replacement therapy or hormonal contraceptives (Current use is defined as use within 14 days of first dose of investigational product).
12. Use of any medication known to inhibit or induce the CYP450 enzymes responsible for the metabolism of the investigational products within 14 days of first dose of investigational product.
13. Known or suspected intolerance or hypersensitivity to the investigational product(s), closely related compounds or any of the stated ingredients.
14. History of alcohol or other substance abuse within the last year.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Other
• Allocation: Randomized
• Interventional Model: Crossover Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Vyvanse (LDX)	Drug: Lisdexamfetamine Dimesylate; 50mg capsule
Experimental: Adderall XR (AXR)	Drug: Adderall XR (mixed salts amphetamine); 20mg capsule

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Maximum Plasma Concentration (Cmax) of d-Amphetamine for Vyvanse and Adderall XR Alone and in Combination With Prilosec OTC	d-Amphetamine is an isomer of Vyvanse and Adderall XR and is an active form that is responsible for the drug's therapeutic activity.	0 through 96 hours after dosing
Time of Maximum Plasma Concentration (Tmax) of d-Amphetamine for Vyvanse and Adderall XR Alone and in Combination With Prilosec OTC	d-Amphetamine is an isomer of Vyvanse and Adderall XR and is an active form that is responsible for the drug's therapeutic activity.	0 through 96 hours after dosing
Area Under the Steady-state Plasma Concentration-time Curve (AUC) of d-Amphetamine for Vyvanse and Adderall XR Alone and in Combination With Prilosec OTC	d-Amphetamine is an isomer of Vyvanse and Adderall XR and is an active form that is responsible for the drug's therapeutic activity.	0 through 96 hours after dosing
Terminal Half-life (T 1/2) of d-Amphetamine for Vyvanse and Adderall XR Alone and in Combination With Prilosec OTC	d-Amphetamine is an isomer of Vyvanse and Adderall XR and is an active form that is responsible for the drug's therapeutic activity.	0 through 96 hours after dosing
Cmax of l-Amphetamine for Adderall XR Alone and in Combination With Prilosec OTC	l-Amphetamine is an isomer of Adderall XR and is an active form that is responsible for the drug's therapeutic activity.	0 through 96 hours after dosing
Tmax of l-Amphetamine for Adderall XR Alone and in Combination With Prilosec OTC	l-Amphetamine is an isomer of Adderall XR and is an active form that is responsible for the drug's therapeutic activity.	0 through 96 hours after dosing
AUC of l-Amphetamine for Adderall XR Alone and in Combination With Prilosec OTC		0 through 96 hours after dosing
T 1/2 of l-Amphetamine for Adderall XR Alone and in Combination With Prilosec OTC	l-Amphetamine is an isomer of Adderall XR and is an active form that is responsible for the drug's therapeutic activity.	0 through 96 hours after dosing
Cmax of Total Amphetamine for Adderall XR Alone and in Combination With Prilosec OTC	Total amphetamine is the d- and l-amphetamines.	0 through 96 hours after dosing
Tmax of Total Amphetamine for Adderall XR Alone and in Combination With Prilosec OTC	Total amphetamine is the d- and l-amphetamines.	0 through 96 hours after dosing
AUC of Total Amphetamine for Adderall XR Alone and in Combination With Prilosec OTC	Total amphetamine is the d- and l-amphetamines.	0 through 96 hours after dosing
T 1/2 of Total Amphetamine for Adderall XR Alone and in Combination With Prilosec OTC	Total amphetamine is the d- and l-amphetamines.	0 through 96 hours after dosing

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Drug Rating Questionnaire-Subject (DRQ-S), Question 2, for Vyvanse and Adderall XR in Combination With Prilosec OTC.	Question 2: How much do you like the effects you are feeling now? Questions are rated on a 29-point scale from 1 (not at all) to 29 (an awful lot). The higher the score the stronger the subjective experience. This is a subjective measure of a drug's effect that has been used to assess the abuse potential of drugs.	Pre-dose and 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 12 and 24 hours after dosing
DRQ-S, Question 1, for Vyvanse and Adderall XR in Combination With Prilosec OTC	Question 1: How much do you feel the drug now? Questions are rated on a 29-point scale from 1 (not at all) to 29 (an awful lot). The higher the score the stronger the subjective experience. This is a subjective measure of a drug's effect that has been used to assess the abuse potential of drugs.	Pre-dose and 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 12 and 24 hours after dosing
DRQ-S, Question 3, for Vyvanse and Adderall XR in Combination With Prilosec OTC	Question 3: Do you dislike the drug effect you are feeling now? Questions are rated on a 29-point scale from 1 (not at all) to 29 (an awful lot). The higher the score the stronger the subjective experience. This is a subjective measure of a drug's effect that has been used to assess the abuse potential of drugs.	Pre-dose and 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 12 and 24 hours after dosing
Systolic Blood Pressure for Vyvanse and Adderall XR Alone and in Combination With Prilosec OTC		Pre-dose and 1, 2, 4, 8, 12, 24, 48, 72 and 96 hours after dosing
Diastolic Blood Pressure for Vyvanse and Adderall XR Alone and in Combination With Prilosec OTC		Pre-dose and 1, 2, 4, 8, 12, 24, 48, 72 and 96 hours after dosing
Pulse Rate for Vyvanse and Adderall XR Alone and in Combination With Prilosec OTC		Pre-dose and 1, 2, 4, 8, 12, 24, 48, 72 and 96 hours after dosing
Electrocardiogram Results (QTcF Interval) for Vyvanse and Adderall XR Alone and in Combination With Prilosec OTC	QTcF is the QT interval using Fridericia's correction formula. QT interval is a measure of time between the start of the Q wave and the end of the T wave and is dependent on the heart rate(e.g., the faster the heart rate, the shorter the QT interval). The QT interval has to be corrected in order to aid interpretation.	Pre-dose, 2 and 8 hours after dosing

Collaborators and Investigators

• Sponsor: Shire

Publications and helpful links

General Publications

• Haffey MB, Buckwalter M, Zhang P, Homolka R, Martin P, Lasseter KC, Ermer JC. Effects of omeprazole on the pharmacokinetic profiles of lisdexamfetamine dimesylate and extended-release mixed amphetamine salts in adults. Postgrad Med. 2009 Sep;121(5):11-9. doi: 10.3810/pgm.2009.09.2048.
• Wigal T, Brams M, Gasior M, Gao J, Giblin J. Effect size of lisdexamfetamine dimesylate in adults with attention-deficit/hyperactivity disorder. Postgrad Med. 2011 Mar;123(2):169-76. doi: 10.3810/pgm.2011.03.2275.

Helpful Links

• FDA Recall Information
• FDA-approved Label

Study record dates

Study Major Dates

• Study Start (Actual): September 8, 2008
• Primary Completion (Actual): October 26, 2008
• Study Completion (Actual): October 26, 2008

Study Registration Dates

• First Submitted: September 2, 2008
• First Submitted That Met QC Criteria: September 3, 2008
• First Posted (Estimate): September 4, 2008

Study Record Updates

• Last Update Posted (Actual): June 14, 2021
• Last Update Submitted That Met QC Criteria: June 8, 2021
• Last Verified: June 1, 2021

More Information

Terms related to this study

• Keywords: Interaction; Drug; Study
• Additional Relevant MeSH Terms: Physiological Effects of Drugs; Adrenergic Agents; Neurotransmitter Agents; Molecular Mechanisms of Pharmacological Action; Autonomic Agents; Peripheral Nervous System Agents; Neurotransmitter Uptake Inhibitors; Membrane Transport Modulators; Dopamine Agents; Dopamine Uptake Inhibitors; Central Nervous System Stimulants; Sympathomimetics; Adrenergic Uptake Inhibitors; Lisdexamfetamine Dimesylate; Amphetamine; Adderall
• Other Study ID Numbers: SPD489-113