Skip to content

An Open-Label Extension Study of the Safety and Tolerability of Memantine in Pediatric Patients with Autism, Asperger’s Disorder or Pervasive Developmental Disorder Not Otherwise Specified (PDD-NOS)

An Open-Label Extension Study of the Safety and Tolerability of Memantine in Pediatric Patients with Autism, Asperger’s Disorder or Pervasive Developmental Disorder Not Otherwise Specified (PDD-NOS)

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2012-001630-33-GB
Enrollment
220
Registered
2012-06-20
Start date
2012-11-14
Completion date
Unknown
Last updated
2019-11-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Autism or Asperger's Disorder or Pervasive Developmental Disorder Not Otherwise Specified (PDD-NOS) Previously Treated with Memantine MedDRA version: 14.1 Level: PT Classification code 10003484 Term: Asperger's disorder System Organ Class: 10037175 - Psychiatric disorders MedDRA version: 14.1 Level: LLT Classification code 10008520 Term: Childhood autism System Organ Class: 10029205 - Nervous system disorders MedDRA version: 14.1 Level: LLT Classification code 10034739 Term: Pervasive develop

Interventions

Product Name: Memantine Hydrochloride Product Code: MRZ 2/145 Pharmaceutical Form: Prolonged-release capsule INN or Proposed INN: MEMANTINE HYDROCHLORIDE CAS Number: 4110-52-1 Concentration unit: mg m

Sponsors

Forest Research Institute, Inc
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: To be eligible to participate in the study, patients must meet the following criteria: 1. Provide written informed assent, when developmentally appropriate, to participate in the study before conduct of any study-specific procedures. The parent/guardian/LAR must provide written informed consent for the patient’s participation in the study. A separate written informed consent for the caregiver must also be obtained before the conduct of any study-specific procedures 2. Have a knowledgeable caregiver who is capable of providing reliable information about the patient’s condition, attending all clinic visits with the patient, and overseeing the administration of investigational product. Every effort should be made to maintain the same caregiver as used in the preceding study throughout this study 3. Patients who completed Study MEM-MD-67, MEM-MD-68 or MEM-MD-91. Patients who discontinued Study MEM-MD-68 due to meeting the criterion for loss of therapeutic response. Sponsor approval is required before enrolling any other patient who discontinued a preceding memantine study 4. Females who are 9 years and older or who have had onset of menses must have a negative urine pregnancy test at Visit 1 5. Have normal results from a physical examination and laboratory tests at Visit 1 of this study (last visit of the preceding study). Any abnormal findings must be deemed not clinically significant by the Investigator and documented 6. Have a family that is sufficiently organized and stable to guarantee adequate safety monitoring and continuous attendance to clinic visits for the duration of the study 7. Be able to speak and understand English sufficiently (or their native language if this can be accommodated by the site), as well as have a caregiver and parent/guardian/LAR who is able to speak and understand English sufficiently (or their native language if this can be accommodated by the site), to comprehend the nature of the study and to allow for the completion of all study assessments Are the trial subjects under 18? yes Number of subjects for this age range: 110 F.1.2 Adults (18-64 years) no F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: Patients who meet any of the following criteria will not be eligible to participate in the study: 1. Patients who discontinued a preceding memantine study due to an adverse event possibly related to study drug 2. Patients with a concurrent medical condition that might interfere with the conduct of the study, confound interpretation of the study results, or endanger the patient’s well being 3. Significant risk of suicidality based on the Investigator’s judgment, ABC-I, or if appropriate, as indicated by a response of “yes” to questions 4 or 5 in the suicidal ideation section of the Children’s Columbia-Suicide Severity Rating Scale (C-SSRS) or any suicidal behavior 4. Patients with evidence or history of malignancy (other than excised basal cell carcinoma) or any significant hematologic, endocrine, cardiovascular (including any rhythm disorder), neurologic, respiratory, renal, hepatic, or gastrointestinal disease 5. Female patients of child-bearing potential who are not using or not willing to use a conventional method of contraception approved by the PI. Abstinence is an acceptable method of contraception 6. Patients requiring treatment with disallowed concomitant medications (Appendix III) 7. Patients who, in the Investigator’s opinion, might not be suitable for the study 8. Employee or immediate relative of an employee of Forest Laboratories, Inc., any of its affiliates or partners, or the study center

Design outcomes

Secondary

MeasureTime frame
Secondary end point(s): Exploratory efficacy assessment evaluation.;Timepoint(s) of evaluation of this end point: Exploratory Efficacy assessments are evaluated at: Visit 1 (End of Week 0) Visit 4 (End of Week 6) Visit 5 (End of Week 12) Visit 6 (End of Week 24) Visit 7 (End of Week 36) Visit 8/Early Termination (End of Week 48)

Primary

MeasureTime frame
Main Objective: To evaluate the long-term safety and tolerability of memantine in the treatment of pediatric patients with autism, Asperger’s Disorder or Pervasive Developmental Disorder Not Otherwise Specified (PDD-NOS).;Secondary Objective: Not Applicable - no secondary objectives;Primary end point(s): Standard safety assessments are being conducted to align withthe main objectives of the study stated in E.2.1. exploratory efficacy assessment evaluation.;Timepoint(s) of evaluation of this end point: Safety assessments are evaluated at: Visit 1 (End of Week 0) Visit 4 (End of Week 6) Visit 5 (End of Week 12) Visit 6 (End of Week 24) Visit 7 (End of Week 36) Visit 8/Early Termination (End of Week 48)

Countries

Australia, Belgium, Colombia, Denmark, Estonia, Finland, France, Germany, Hungary, Iceland, Ireland, Italy, Korea, Republic of, Mexico, Netherlands, New Zealand, Philippines, Poland, Russian Federation, Serbia, Singapore, Slovakia, South Africa, Spain, Sweden, Taiwan, Thailand, Ukraine, United Kingdom

Contacts

Public ContactClinical Trial Information Desk

Quintiles Contact Center

QEudraCThelpdesk@quintilescontact.com862 261 3634

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026