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A study of mirabegron in young children with neurogenic detrusor overactivity

Mirabegron in Young Children Study | Astellas Clinical Trials

A study to learn how [14C]ASP0367 is processed by the body in healthy men

14C ASP0367 In Males Study | Astellas Clinical Trials

A Study of Gilteritinib (ASP2215) Combined with Chemotherapy in Children, Adolescents and Young Adults with FMS-like Tyrosine Kinase 3 (FLT3)/Internal Tandem Duplication (ITD) Positive Relapsed or Refractory Acute Myeloid Leukemia (AML)

Gilteritnib and Chemotherapy Study | Astellas Clinical Trials

A study to find the best dose of ASP5354 to show lymph nodes in people with breast cancer or melanoma during surgery

ASP5354 to Show Lymph Nodes Study | Astellas Clinical Trials

A Study of Intravesical Enfortumab Vedotin For Treatment of Patients With Non-muscle Invasive Bladder Cancer (NMIBC)

Intravesical Enfortumab Vedotin for Bladder Cancer Study | Astellas Clinical Trials

A study of the safety and tolerability of ASP7317 in adults who are losing their clear, sharp central vision due to geographic atrophy secondary to dry age-related macular degeneration

ASP7317 for Geographic Atrophy Study | Astellas Clinical Trials

A Study to Assess the Antitumor Activity, Safety, Pharmacokinetics and Biomarkers of Zolbetuximab (IMAB362) in Participants with Claudin (CLDN) 18.2 Positive, Metastatic or Advanced Unresectable Gastric and Gastroesophageal Junction (GEJ) Adenocarcinoma

Zolbetuximab Study | Astellas Clinical Trials

A Study of an Intratumoral Oncolytic Virus in Patients with Advanced Metastatic Solid Tumors

Intratumoral Oncolytic Virus Study | Astellas Clinical Trials

A Study to Assess ASP0598 Otic Solution Following Topical Application in the Ear in Subjects with Chronic Tympanic Membrane Perforation (CTMP)

ASP058 Otic Solution Study | Astellas Clinical Trials

A study to evaluate ASP0367 in participants with primary mitochondrial myopathy

ASP0367 Study for Primary Mitochondrial Myopathy | Astellas Clinical Trials

A study of ASP2138 in adults with stomach cancer or pancreatic cancer

ASP2138 Study for Stomach or Pancreatic Cancer | Astellas Clinical Trials

A study about how ASP5354 affects the body in healthy adults and in adults whose kidneys do not work well

ASP5354 for Healthy Adults and Adults with Poor Kidneys | Astellas Clinical Trials

A Study for Subjects With Prostate Cancer Who Previously Participated in an Enzalutamide Clinical Study

Prostate Cancer Study for Previous Participation in Enzalutamide  | Astellas Clinical Trials

A Study to Assess the Efficacy and Safety of IMAB362 in Combination with Nab-Paclitaxel and Gemcitabine (Nab-P + GEM) as First Line Treatment in Subjects with Claudin 18.2 (CLDN18.2) Positive, Metastatic Pancreatic Adenocarcinoma

IMAB362 with Nab P and GEM Study for Pancreatic Cancer  | Astellas Clinical Trials

A study of gilteritinib, venetoclax and azacitidine as a combined treatment for people newly diagnosed with acute myeloid leukemia

Gilteritinib Venetoclax and Azacitidine Study for Acute Myeloid Leukemia | Astellas Clinical Trials

A Study Investigating the Safety, Tolerability and Efficacy of ASP7517 in Subjects with Relapsed/Refractory Acute Myeloid Leukemia (AML) and Relapsed/Refractory Higher Risk Myelodysplastic Syndrome (MDS)

ASP7517 for Acute Myeloid Leukimia | Astellas Clinical Trials

A study to evaluate ASP0367 in participants with reduced maximum oxygen uptake due to poor systemic oxygen extraction

ASP0367 for Reduced Maxiumum Oxygen Uptake Study | Astellas Clinical Trials

A study of ASP3082 in adults with previously treated solid tumors

ASP3082 for Solid Tumors Study | Astellas Clinical Trials

A Study of ASP1570 in adults with locally advanced or metastatic solid tumors

ASP1570 for Advanced or Metastatic Tumors Study | Astellas Clinical Trials

Study of ASP7517 Alone and with Pembrolizumab in Participants with Advanced Solid Tumors Expressing WT1 Antigen

ASP7517 with Pembrolizumab Study | Astellas Clinical Trials

A Safety Surveillance Study in Subjects with Macular Degenerative Disease Treated with Human Embryonic Stem Cell-derived Retinal Pigment Epithelial Cell Therapy

Macular Degenerative Disease Study | Astellas Clinical Trials

A study to evaluate mirabegron in pediatric participants from 5 to less than 18 years of age with overactive bladder (OAB)

Mirabegron Study in Children with OAB Study | Astellas Clinical Trials

Study of ASP0739 Alone and with Pembrolizumab in Advanced Solid Tumors with NY-ESO-1 Expression Participants

ASP0739 with Pembrolizumab Study For Solid Tumors| Astellas Clinical Trials

A study of ASP0367 in people with kidneys that do not work well and in healthy people

ASP0367 Study for Adults with Poor Kidneys | Astellas Clinical Trials

Enfortumab vedotin and pembrolizumab vs. chemotherapy alone in untreated locally advanced or metastatic urothelial cancer

Enfortumab Vedotin and Pembrolizumab vs Chemotherapy Study | Astellas Clinical Trials

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Access to anonymized individual participant level data will not be provided for this trial as it meets one or more of the exceptions described on www.clinicalstudydatarequest.com under "Sponsor Specific Details for Astellas".

Double blind treatment period: Participant, Caregiver, Investigator

Participants will receive ASP0367 once daily in the morning for 24 weeks.

Participants will receive placebo once daily in the morning for 24 weeks.

The purpose of this study is to evaluate the dose response of ASP0367 on functional improvement relative to placebo, safety, and tolerability in participants with Primary Mitochondrial Myopathy.

Efficacy (i.e., functional improvement) will be assessed by a functional motor test, 6-minute walk test (6MWT). The study consists of the following portions: screening (4 weeks); double-blind treatment period with 2 doses of ASP0367 vs matching placebo (24 weeks) and follow up (4 weeks).
Participants will be randomly placed into 1 of 3 arms (low dose ASP0367, high dose ASP0367 or placebo).

CN CDE Number

EudraCT Number

jRCT Number

NCT ID

Patient Level Data

Product ST Name

Therapeutic Area

Akron Children’s Hospital

University of Texas Health Science Center at Hosuton

Columbia University Irving Medical Center

Massachusetts General Hospital

Mayo Clinic

Baylor College of Medicine

Cleveland Clinic

Stanford University Medical Center

Mayo Clinic Arizona

Mayo Clinic Florida

Children’s Hospital Colorado

Seattle Children's Hospital

University of California, San Diego

Children's Hospital of Philadelphia

A Randomized, Double-blind, Placebo-controlled Phase 2 Study to Assess the Efficacy, Safety and Tolerability of ASP0367 in Participants with Primary Mitochondrial Myopathy

TEAE will be coded using medical dictionary for regulatory activities (MedDRA). A TEAE is defined as an adverse event (AE) observed after starting administration of the investigational product (IP) to 28 days after the last dose of IP for the double-blind treatment period of the study or moving to the OLE or day 182, whichever comes first based on the protocol version on which participants were enrolled. An AE is any untoward medical occurrence in a participant, temporally associated with the use of IP, whether or not considered related to the IP. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of IP. This includes events related to the comparator and events related to the study procedures.

Number of participants with potentially clinically significant body weight changes.

Number of participants with potentially clinically significant 12-lead ECG values.

Number of participants with potentially clinically significant laboratory values.

Number of participants with potentially clinically significant vital sign values.

The Columbia-Suicide Severity Rating Scale (C-SSRS) is a clinician administered assessment tool that evaluates suicidal ideation and behavior. Number of participants that have an affirmative response provided to the 5 items for suicidal ideation (1. Wish to be dead, 2. Nonspecific active suicidal thoughts, 3. Active suicidal ideation with any methods (not plan) without intent to act, 4. Active suicidal ideation with some intent to act, without specific plan, 5. Active suicidal ideation with specific plan and intent) and/or to the 6 items for suicidal behavior (1. Actual attempt, 2. Interrupted attempt, 3. Aborted attempt, 4. Preparatory acts or behavior, 5. Suicidal Behavior 6. Completed suicide).

Treatment emergent adverse events will be coded using medical dictionary for regulatory activities (MedDRA). A TEAE is defined as an adverse event (AE) observed after starting administration of the investigational product (IP) to 28 days after the last dose of IP for the double-blind treatment period of the study or moving to the OLE or day 182, whichever comes first based on the protocol version on which participants were enrolled. An AE is any untoward medical occurrence in a participant, temporally associated with the use of IP, whether or not considered related to the IP. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of IP. This includes events related to the comparator and events related to the study procedures.

The 6-minute walk test (6MWT) is a measurement of endurance that assesses walking distance over 6 minutes.

The Neuro-QoL Short Form Fatigue score is an 8-item self- assessment questionnaire evaluating the perception of fatigue and its impact in daily life activities. Participants have five response options for each item: 1=Never, 2=Rarely, 3=Sometimes, 4=Often, 5=Always. The questionnaire is scored by adding the response to each of the items. Higher scores indicate a greater level of fatigue.

Change from baseline in time spent on the 5XSTS test. The test requires participants to sit with arms folded across chest and back against the chair and stand up and sit down 5 times in a row, as quickly as he/she can.

MFIS is a modified form of the Fatigue Impact Scale questionnaire specific to measuring how fatigue impacts the lives of those affected by fatigue-like symptoms. The 21 items in the scale measure three domains of fatigue including physical, cognitive and psychosocial functioning. Participants have five response options for each item: 0=Never, 1=Rarely, 2=Sometimes, 3=Often, and 4=Almost always. The scale is scored by adding the response to each of the items. Higher scores indicate a greater level of fatigue.

The Patient Global Impression of Change evaluates participant’s most bothersome symptom and assesses if there has been an improvement or decline in clinical status. Ratings range from (1) very much improved to (7) very much worse.

The Patient Global Impression of Severity questionnaire assesses patient’s impression of disease severity. The questionnaire asks the participant to best describe the severity of the participant’s most bothersome pre-defined symptom over the past week scored from (1) None to (4) Severe.