500 Participants Needed

Methylphenidate for ADHD

Recruiting at 1 trial location
JM
BK
IW
JN
Overseen ByJeffrey Newcorn, MD
Age: < 18
Sex: Any
Trial Phase: Phase 4
Sponsor: Icahn School of Medicine at Mount Sinai
Must be taking: Methylphenidate
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)
Prior Safety DataThis treatment has passed at least one previous human trial
Approved in 3 JurisdictionsThis treatment is already approved in other countries

Trial Summary

What is the purpose of this trial?

This trial is investigating how genetic differences in an enzyme called CES1 affect the way ADHD patients respond to the medication methylphenidate. The goal is to understand why some patients do not respond well or experience severe side effects. Methylphenidate (MPH) is a well-established treatment for ADHD, but not all patients respond to it, and some experience adverse reactions.

Will I have to stop taking my current medications?

The trial information does not specify whether you need to stop taking your current medications. It's best to discuss this with the study team or your doctor.

What data supports the effectiveness of the drug Methylphenidate for ADHD?

Research shows that Methylphenidate, including its controlled-delivery forms like Metadate CD, is effective in reducing ADHD symptoms in children and adolescents. It has been found to be superior to placebo and comparable to immediate-release versions, providing better symptom control during the school day.12345

Is methylphenidate generally safe for humans?

Methylphenidate, used in various forms like Ritalin and Concerta, is generally well tolerated in both children and adults with ADHD. Most reported side effects are mild and resolve quickly, but long-term effects are still being studied.16789

How is the drug Methylphenidate unique for treating ADHD?

Methylphenidate, especially in its controlled-delivery form, is unique because it provides effective symptom control throughout the school day with just one dose, making it convenient for children and adolescents with ADHD. It is also available in a chirally pure form called dexmethylphenidate, which is effective at half the dose of regular Ritalin, potentially reducing side effects and drug interactions.134710

Research Team

JN

Jeffrey Newcorn, MD

Principal Investigator

Icahn School of Medicine at Mount Sinai

MS

Mark Stein, PhD

Principal Investigator

University of Washington

TF

Tanya Froehlich, MD

Principal Investigator

Children's Hospital Medical Center, Cincinnati

Eligibility Criteria

This trial is for young people aged 6-26 with a primary diagnosis of ADHD. It's open to those who have previously been part of MPH trials and are invited back for further study. Smokers, pregnant individuals, or those not considered healthy enough for MPH treatment by their doctors cannot participate.

Inclusion Criteria

I am between 6 and 26 years old and have been diagnosed with ADHD.
For former participants of MPH trials to be invited back for PK procedures.

Exclusion Criteria

You were not diagnosed with ADHD as your main condition.
I am not a candidate for medication treatment with MPH for my ADHD, as decided by my doctors.
You currently smoke or are pregnant.

Timeline

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Treatment

Participants receive methylphenidate and are monitored for pharmacokinetics and pharmacodynamics in relation to CES1 genetic variants

8 hours per session
Multiple sessions (in-person)

Follow-up

Participants are monitored for safety and effectiveness after treatment

4 weeks

Treatment Details

Interventions

  • Methylphenidate
Trial OverviewThe trial is examining how genetic differences in an enzyme called CES1 affect the body's response to Methylphenidate (MPH), a common medication used to treat ADHD. The goal is to understand the link between CES1 gene variants and MPH effectiveness.
Participant Groups
1Treatment groups
Experimental Treatment
Group I: MethylphenidateExperimental Treatment1 Intervention
Youth with ADHD

Methylphenidate is already approved in United States, Canada, European Union for the following indications:

🇺🇸
Approved in United States as Methylphenidate for:
  • Attention Deficit Hyperactivity Disorder (ADHD)
  • Narcolepsy
🇨🇦
Approved in Canada as Methylphenidate for:
  • Attention Deficit Hyperactivity Disorder (ADHD)
  • Narcolepsy
🇪🇺
Approved in European Union as Methylphenidate for:
  • Attention Deficit Hyperactivity Disorder (ADHD)
  • Narcolepsy

Find a Clinic Near You

Who Is Running the Clinical Trial?

Icahn School of Medicine at Mount Sinai

Lead Sponsor

Trials
933
Recruited
579,000+

Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

Collaborator

Trials
2,103
Recruited
2,760,000+

University of Florida

Collaborator

Trials
1,428
Recruited
987,000+

Seattle Children's Hospital

Collaborator

Trials
319
Recruited
5,232,000+

Children's Hospital Medical Center, Cincinnati

Collaborator

Trials
844
Recruited
6,566,000+

Findings from Research

Controlled-delivery methylphenidate (methylphenidate CD) is effective and well tolerated for treating ADHD in children aged 6 and older, showing superior control of symptoms compared to osmotic release methylphenidate during a typical school day.
In clinical trials lasting 3 weeks, methylphenidate CD was found to be more effective than a placebo and equally effective as immediate-release methylphenidate, making it a strong option for managing ADHD symptoms during school hours.
Methylphenidate controlled-delivery capsules (EquasymXL, Metadate CD): a review of its use in the treatment of children and adolescents with attention-deficit hyperactivity disorder.Anderson, VR., Keating, GM.[2018]
In a study involving children aged 6-12 years with ADHD, once-daily modified-release methylphenidate (EqXL) was found to be non-inferior to twice-daily immediate-release methylphenidate (MPH-IR) in reducing ADHD symptoms over three weeks.
Both formulations of methylphenidate were significantly more effective than placebo, and all treatments were well tolerated, indicating a favorable safety profile.
Comparison of the clinical efficacy of twice-daily Ritalin and once-daily Equasym XL with placebo in children with Attention Deficit/Hyperactivity Disorder.Findling, RL., Quinn, D., Hatch, SJ., et al.[2018]
Dexmethylphenidate, a chirally pure form of methylphenidate, has been shown to effectively manage ADHD in children at half the dose of traditional Ritalin, based on clinical trials involving 684 children.
The drug works by inhibiting the reuptake of norepinephrine and dopamine, and has been found to be well tolerated, with ongoing research to further understand its therapeutic action.
Dexmethylphenidate--Novartis/Celgene. Focalin, D-MPH, D-methylphenidate hydrochloride, D-methylphenidate, dexmethylphenidate, dexmethylphenidate hydrochloride.[2018]

References

Methylphenidate controlled-delivery capsules (EquasymXL, Metadate CD): a review of its use in the treatment of children and adolescents with attention-deficit hyperactivity disorder. [2018]
Comparison of the clinical efficacy of twice-daily Ritalin and once-daily Equasym XL with placebo in children with Attention Deficit/Hyperactivity Disorder. [2018]
Dexmethylphenidate--Novartis/Celgene. Focalin, D-MPH, D-methylphenidate hydrochloride, D-methylphenidate, dexmethylphenidate, dexmethylphenidate hydrochloride. [2018]
Spotlight on methylphenidate controlled-delivery capsules (Equasym XL, Metadate CD) in the treatment of children and adolescents with attention-deficit hyperactivity disorder. [2019]
Symptom control in children and adolescents with attention-deficit/hyperactivity disorder on switching from immediate-release MPH to OROS MPH Results of a 3-week open-label study. [2022]
A postmarketing clinical experience study of Metadate CD. [2019]
Efficacy and safety of OROS methylphenidate in adults with attention-deficit/hyperactivity disorder: a randomized, placebo-controlled, double-blind, parallel group, dose-escalation study. [2022]
[Utilization of methylphenidate(Ritalin) in France]. [2013]
Adverse events in medication treatment-naïve children with attention-deficit/hyperactivity disorder: results from a small, controlled trial of lisdexamfetamine dimesylate. [2015]
The clinical impact of switching attention deficit hyperactivity disorder patients from OROS(®)-MPH to Novo-MPH ER-C(®): A paediatric practice review. [2021]