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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03670953
Other study ID # IPX203-B16-02
Secondary ID 2018-002233-37
Status Completed
Phase Phase 3
First received
Last updated
Start date November 6, 2018
Est. completion date June 15, 2021

Study information

Verified date September 2022
Source Impax Laboratories, LLC
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

To evaluate the safety and efficacy of IPX203 (carbidopa and levodopa) extended-release capsules (IPX203 ER CD-LD) in comparison to immediate release (IR) CD-LD in the treatment of CD-LD-experienced participants with Parkinson's disease (PD) who have motor fluctuations.


Description:

This was a multicenter, randomized, double-blind, double-dummy, active-controlled, parallel-group study. The study consisted of a 3-week, open-label IR CD-LD dose adjustment period; a 4-week, open-label period for conversion to IPX203; followed by a 13-week double-blind treatment period with participants randomized in a 1:1 ratio, stratified by center, to receive either IPX203 (with matching IR CD-LD placebo) or IR CD-LD (with matching IPX203 placebo).


Recruitment information / eligibility

Status Completed
Enrollment 630
Est. completion date June 15, 2021
Est. primary completion date June 15, 2021
Accepts healthy volunteers No
Gender All
Age group 40 Years and older
Eligibility Inclusion Criteria: - Male or female participants diagnosed at age = 40 years with PD, consistent with the United Kingdom Parkinson's Disease Society Brain Bank Diagnostic Criteria and who are being treated with stable regimens of CD-LD but experiencing motor fluctuations. - Able to provide written informed consent prior to the conduct of any study-specific procedures. - Female participants of childbearing potential must have a negative urine pregnancy test at Screening Visit. - Negative urine screen for drugs of abuse and negative alcohol breath test at Screening. - Hoehn and Yahr Stages 1, 2, 3, or 4 in the "On" state (part of Movement Disorders Society version of the Unified Parkinson's Disease Rating Scale [MDS-UPDRS] Part III) - Agrees to use a medically acceptable method of contraception throughout the study and for 6 weeks after completing the study. Medically acceptable methods of contraception that may be used by the participant and/or partner include but are not limited to: abstinence, oral contraception, NuvaRing or transdermal systems, diaphragm with vaginal spermicide, intrauterine device, condom and partner using vaginal spermicide, surgical sterilization (6 months), progestin implant or injection, or postmenopausal female (no menstrual period for ? 2 years) or vasectomy (? 6 months). - Montreal Cognitive Assessment (MoCA) score = 24 at Screening Visit in "On" state. - Able to differentiate "On" state from "Off" state as determined by at least 75% concordance with a trained rater in "On/Off" ratings for 8 ratings over a 4-hour training period. The concordance must include at least 1 "On" and 1 "Off" rating and must be achieved within two 4-hour training sessions. - Able and willing to comply with the protocol, including completion of diaries and availability for all study visits. - Responsive to CD-LD therapy and currently being treated on a stable regimen with CD-LD for at least 4 weeks prior to Visit 1. - At Screening, the participant has predictable "Off" periods. Exclusion Criteria: - Received any investigational medications within 30 days or 5 times the half-life, whichever is longer, prior to Visit 1. - Female participants who are currently breastfeeding or lactating. - Had prior neurosurgical treatment for PD or if such procedure is planned or anticipated during the study period. - Allergic to any excipient in the study drugs. - History of medical conditions or of a prior surgical procedure that would interfere with LD absorption, such as gastrectomy, proximal small-bowel resection, or bariatric surgery. - History of upper gastrointestinal hemorrhage in participants with peptic ulcer disease within the past 5 years. - History of glaucoma with intraocular pressures that are elevated despite appropriate medical management. - History of seizure or epilepsy and experienced at least 1 seizure during the past 12 months or has not been compliant with medically recommended therapy or visits. - History of myocardial infarction with residual atrial, nodal, or ventricular arrhythmias that are not controlled with medical and/or surgical interventions. A recent (= 12 months) history of myocardial infarction with secondary arrhythmias is exclusionary regardless of the therapeutic control. - History of neuroleptic malignant syndrome or of nontraumatic rhabdomyolysis. - Liver enzyme values = 2.5 times the upper limit of normal; or history of severe hepatic impairment. - Serum creatinine level = 1.75 times the upper limit of normal; or requires dialysis at the time of Screening. - Participant with a history of malignant melanoma or with a suspicious undiagnosed skin lesion which in the opinion of the investigator could be melanoma. - History of drug or alcohol abuse within the 12 months prior to Screening. - Received within 4 weeks of Screening or planning to take during participation in the clinical study: - Any doses of a CR CD-LD apart from a single daily bedtime dose, any doses of Rytary, additional CD (eg, Lodosyn) or benserazide (eg, Serazide), or catechol-O-methyl transferase inhibitors (entacapone or tolcapone) or medications containing these inhibitors (Stalevo), - Nonselective monoamine oxidase inhibitors (MAOI), apomorphine, or antidopaminergic agents, including antiemetics. - Employees or family members of the investigator, study site, or sponsor. - Participants who have previously participated in an IPX203 study. - Participants who, in the opinion of the clinical investigator, should not participate in the study. - Based on clinical assessment, participant does not adequately comprehend the terminology needed to complete the PD diary.

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
IR CD-LD
Active comparator - IR CD-LD
IPX203 ER CD-LD
Investigational formulation - ER CD-LD
Other:
Placebo Matching IPX203
Double dummy placebo capsules
Placebo Matching IR CD-LD
Double dummy placebo tablets

Locations

Country Name City State
Czechia Fakultni nemocnice u sv. Anny v Brne, I. neurologicka klinika (704) Brno
Czechia Neurohk, s.r.o (701) Chocen
Czechia Nemocnice Pardubickeho kraje, a.s., Pardubicka nemocnice, Neurologicka klinika (702) Pardubice
Czechia Clintrial s.r.o. (703) Praha 10
Czechia AXON Clinical, s.r.o. (700) Praha 5
Czechia Neurologicka ordinace FORBELI s.r.o.(706) Praha 6
France CHU de Clermont-Ferrand - Hopital Gabriel Montpied (404) Clermont-Ferrand Cedex 1
France CHU de Montpellier, Hopital Gui de Chauliac(405) Montpellier Cedex 5
France Centre Hospitalier Universitaire de Nice (400) Nice
France INSERM, Centre d'investigation Clinique 1402, CHU de Poitiers (402) Poitiers Cedex
France Centre d'Investigation Clinique 1436-CHU Purpan-Hopital Pierre Paul Riquet (403) Toulouse Cedex 9
Germany Kliniken Beelitz GmbH, Neurologisches Fachkrankenhaus fUr Bewegungsstorungen/Parkinson (300) Beelitz-Heilstatten Brandenburg
Germany Dr. med. REINHARDT Ehret Neurologie Berlin Schlobstr. 29 (309) Berlin
Germany St. Josef-Hospital, Universitatsklinik fur Neurologie, Klinisches Forschungszentrum fur Neurodegeneration (301) Bochum North Rhine-Westphalia
Germany Universitatsklinikum Carl Gustav Carus, Klinik und Poliklinik fur Neurologie (307) Dresden Saxony
Germany Klinik Haag i. OB, Geriatric Hospital (305) Haag In Oberbayern Oberbayern (Upper Bavaria)
Germany Curiositas ad sanum, Studien und Beratungs GmbH(311) München Bavaria
Germany Klinikum rechts der lsar der TUM, Klinik und Poliklinik fur Neurologie (303) München Bavaria
Germany Gemeinschaftspraxis Dr. med. Joachim Springub/ Wolfgang Schwarz, Studienzentrum Nord-West (306) Westerstede Lower Saxony
Italy Centro Ricerca Parkinson San Raffaele Cassino (601) Cassino Italy/Frosinone/Lazio
Italy Department "G.F. Ingrassia" Section of neuroscience-Policlinico "Vittorio Emanuele" (608) Catania Italy/Catania/Sicily
Italy Universita G. D'annunzio CeSi Met (604) Chieti Italy/Chieti/Abbruzzo
Italy Fondazione lstituto Neurologico Nazionale "C. Mondino" (606) Pavia Italy/Pavia/Lombardia
Italy Azienda Ospedaliero-Universitaria Pisana (602) Pisa Italy/Pisa/Toscana
Italy Department of Neuroscience, Mental Health and Sensory System (NeSMOS), Sapienza University (603) Roma Italy/Roma/Lazio
Italy IRCCS San Raffaele Pisana (600) Roma Italy/Roma/Lazio
Italy University of Rome Tor Vergata/Hospital Tor Vergata (605) Roma Italy/Roma/Lazio
Poland Centrum Medyczne Neuromed (803) Bydgoszcz
Poland Krakowska Akademia Neurologii Sp. z o.o.(802) Kraków
Poland Szpital Sw. Rozy (805) Kraków
Poland NZOZ Neuromed M. i M Nastaj Spolka Partnerska(800) Lublin
Poland NZOZ Neuro-Kard Ilkowski i Partnerzy Spolka Partnerska Lekarzy (801) Poznan
Poland Neuro-Care Sp. z o.o. sp. k.(804) Siemianowice Slaskie
Poland Centrum Medyczne NeuroProtect (806) Warszawa
Spain Hospital Clinic de Barcelona (507) Barcelona
Spain Hospital De La Santa Creu i Sant Pau (502) Barcelona
Spain Hospital Universitario Quiron Dexeus (501) Barcelona
Spain Hospital Universitario Vall d' Hebron (505) Barcelona
Spain Hospitalaries Del Sagrat Cor De Jesus Hospital Sant Rafael (516) Barcelona
Spain Hospital Genral Universitario de Elche (509) Elche Alicante
Spain Hospital Universitario de la Princesa (508) Madrid
Spain Hospital Universitario Infanta Sofia (513) Madrid
Spain Hospital Universitario Ramon y Cajal (500) Madrid
Spain Clinica Universidad de Navarra (512) Pamplona Navarra
Spain Policlinica Gipuzkoa, S.A.,(511) San Sebastian Gipuzkoa
Spain Hospital Universitari General de Catalunya (504) Sant Cugat Del Vallès Barcelona
Spain Hospital Universitario Virgen del Rocio (503) Sevilla
Spain Hospital Universitari Mutua Terrassa (506) Terrassa Barcelona
Spain Hospital Universitario y politecnico La Fe (515) Valencia
United Kingdom Imperial College Healthcare NHS Trust (200) London
United Kingdom Re:Cognition Health Ltd (202) London
United Kingdom Re: Cognition Health Ltd(205) Plymouth Devon
United States Albany Medical College (139) Albany New York
United States Inova Medical Group-Neurology I (147) Alexandria Virginia
United States Emory Brain Health Center (110) Atlanta Georgia
United States JEM Research Institute (136) Atlantis Florida
United States University of Colorado Hospital Anschutz Outpatient Pavilion (120) Aurora Colorado
United States Visionary Investigators Network (168) Aventura Florida
United States Parkinson's Disease and Movement Disorders Center of Boca Raton (121) Boca Raton Florida
United States University of Miami-UHealth at Boca Raton (152) Boca Raton Florida
United States Medical University of South Carolina (150) Charleston South Carolina
United States Northwestern Medical Group Neurology Clinic(145) Chicago Illinois
United States Ucgni (133) Cincinnati Ohio
United States Cleveland Clinic (144) Cleveland Ohio
United States University Hospitals Cleveland Medical Center (123) Cleveland Ohio
United States Neurology Consultants of Dallas, PA (108) Dallas Texas
United States University of Texas Southwestern Medical Center (143) Dallas Texas
United States NeuroStudies.net, LLC (155) Decatur Georgia
United States Rocky Mountain Movement Disorders Center (116) Englewood Colorado
United States Quest Research Institute (103) Farmington Hills Michigan
United States Struthers Parkinson's Center (130) Golden Valley Minnesota
United States MD Clinical (111) Hallandale Beach Florida
United States VCU Health - Neuroscience, Orthopaedic and Wellness Center (124) Henrico Virginia
United States Infinity Clinical Research (104) Hollywood Florida
United States Houston Methodist Neurological Institute/Movement Disorders Clinic (135) Houston Texas
United States Indiana University Health Neuroscience Center (164) Indianapolis Indiana
United States University of Florida Health Science Center(129) Jacksonville Florida
United States University of Kansas Medical Center (118) Kansas City Kansas
United States Booth Gardner Parkinson's Care Center (112) Kirkland Washington
United States Cleveland Clinic Lou Ruvo Center for Brain Health (142) Las Vegas Nevada
United States Roseman Medical Research Institute/Roseman Medical Group (154) Las Vegas Nevada
United States Clinical Trials, Inc. (113) Little Rock Arkansas
United States University of Arkansas for Medical Sciences (117) Little Rock Arkansas
United States Loma Linda University Health Care, Department of Neurology (137) Loma Linda California
United States Keck School of Medicine of USC/University of Southern California (106) Los Angeles California
United States Neurology Associates, P.A. (125) Maitland Florida
United States Medical Professional Clinical Research Center, INC (163) Miami Florida
United States University of Miami (149) Miami Florida
United States The Vanderbilt Clinic(158) Nashville Tennessee
United States Mount Sinai West-Department of Neurology(172) New York New York
United States Christiana Care Neurology Specialists (153) Newark Delaware
United States Hoag Memorial Hospital Presbyterian (134) Newport Beach California
United States SC3 Research - Pasadena (148) Pasadena California
United States St. Joseph's Hospital & Medical Center/ Barrow Neurological Institute (156) Phoenix Arizona
United States Xenoscience, Inc. (102) Phoenix Arizona
United States Parkinsons's Disease Treatment Center of Southwest Florida (131) Port Charlotte Florida
United States SC3 Research - Reseda (146) Reseda California
United States Washington University (109) Saint Louis Missouri
United States Inland Northwest Research (119) Spokane Washington
United States Infinity Clinical Research, LLC (105) Sunrise Florida
United States University of South Florida (114) Tampa Florida
United States University of Toledo, Gardner-McMaster Parkinson Center (122) Toledo Ohio
United States Movement Disorder Clinic of Oklahoma (115) Tulsa Oklahoma
United States Henry Ford West Bloomfield Hospital (100) West Bloomfield Michigan
United States Premiere Research Institute at Palm Beach Neurology (174) West Palm Beach Florida
United States Central DuPage Hospital (151) Winfield Illinois
United States Wake Forest Baptist Health Sciences (127) Winston-Salem North Carolina
United States Charter Research (166) Winter Park Florida

Sponsors (1)

Lead Sponsor Collaborator
Impax Laboratories, LLC

Countries where clinical trial is conducted

United States,  Czechia,  France,  Germany,  Italy,  Poland,  Spain,  United Kingdom, 

Outcome

Type Measure Description Time frame Safety issue
Primary Mean Change From Baseline in "Good on" Time Per Day at Week 20/Early Termination (ET) "Good on" time was derived from the 3-day PD Diaries. For each day, "Good on" time was calculated by adding the number of half-hour intervals in which either an "On" without dyskinesia or "On" with nontroublesome dyskinesia was checked.
Baseline was defined as data obtained from PD Diary collected over 3 days prior to Week 7/Randomization.
Least square mean (LSM), standard error (SE), confidence interval (CI), Mixed model repeated measures (MMRM), Change from baseline (CFB).
Baseline (Week 7) and Week 20/ET
Secondary Change From Baseline in "Off" Time Per Day at Week 20/ET "Off" time was derived from the 3-day PD Diaries. For each day, "Off" time was calculated by adding the number of half-hour intervals in which the Status "Off" was checked. Baseline was defined as data obtained from PD Diary collected over 3 days prior to Week 7/Randomization. Baseline (Week 7) and Week 20/ET
Secondary Percentage of Participants With Either "Much Improved" or "Very Much Improved" in Patient Global Impression of Change (PGI-C) Scores at Week 20/ET The Patient Global Impression of Change (PGIC) is self assessment questionnaire which was used by participants to compare his/her condition on a 7-point scale ranging from 1-Very Much Worse, 2-Much Worse, 3-Minimally Worse, 4-No Change, 5-Minimally Improved, 6-Much Improved, 7-Very Much Improved. Percentage of participants with either "Much Improved" or "Very Much Improved" was reported. Week 20/ET
Secondary Change From Baseline in The Movement Disorders Society Version of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Part III at Week 20/ET MDS-UPDRS is a multimodal scale assessing impairment and disability consisting of 4 parts. (Part I; 13 items) non-motor experiences of daily living, (Part II; 13 items) motor experiences of daily living completed by the participants, (Part III; 34 items) motor examination of PD and was administered by the rater, and (Part IV; 6 items) motor complication integrates participant-derived information with the rater's clinical observations and judgements and is completed by the rater. For each question a numeric score was assigned between 0-4, where 0 = Normal, 1 = Slight, 2 = Mild, 3 = Moderate, 4 = Severe. MDS-UPDRS Total Score equals the sum of Parts I, II, and III and IV (Range 0-234). Part III score ranges from 0 to 136. A higher score indicated more severe symptoms of PD. Baseline was defined as data obtained from PD Diary collected over 3 days prior to Week 7/Randomization. Baseline (Week 7) and Week 20/ET
Secondary Change From Baseline in The Sum of MDS-UPDRS Part II and Part III at Week 20/ET MDS-UPDRS is a multimodal scale assessing impairment and disability consisting of 4 parts. (Part I; 13 items) non-motor experiences of daily living, (Part II; 13 items) motor experiences of daily living completed by the participants, (Part III; 34 items) motor examination of PD and was administered by the rater, and (Part IV; 6 items) motor complication integrates participant-derived information with the rater's clinical observations and judgements and is completed by the rater. For each question a numeric score was assigned between 0-4, where 0 = Normal, 1 = Slight, 2 = Mild, 3 = Moderate, 4 = Severe. MDS-UPDRS Total Score equals the sum of Parts I, II, and III and IV (Range 0-234). The scale range for Part II+III score is 0-188. A higher score indicated more severe symptoms of PD. Baseline was defined as data obtained from PD Diary collected over 3 days prior to Week 7/Randomization. Baseline (Week 7) and Week 20/ET
See also
  Status Clinical Trial Phase
Completed NCT04608123 - Effect of Deep Brain Stimulation on Neuropsychiatric Fluctuations in Patients With Parkinson's Disease