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PARKINSON DISEASE (Disorder)Phase 3INITIATE-LECIGNCT07151378

Intestinal Levodopa + Entacapone Therapy (Lecigon®) to Counteract Dopaminergic Desensitization and Neuropsychiatric Complications in Parkinson's Disease

A Phase 3 study testing LECIG (levodopa, carbidopa, entacapone intestinal gel) and Best oral medication in people with PARKINSON DISEASE (Disorder), run by University Hospital Tuebingen at 7 sites in Germany.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

This study is a Phase III multicentric randomized controlled trial with parallel group design and waiting list in patients that have an indication to undergo intestinal L-Dopa + entacapone (Lecigon®) under the existing indication criteria (according to SmPC (Fachinformation) Lecigon®). Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
PARKINSON DISEASE (Disorder)
What is being tested?
LECIG (levodopa, carbidopa, entacapone intestinal gel) and Best oral medication
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
150 participants
Where
7 sitesGermany
Study dates
27 Oct 2025to 22 Sep 2030
Phase
Phase 3
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Understand and voluntarily sign an informed consent document prior to any study related assessments/procedures. 2. Able to adhere to the study visit schedule and other protocol requirements. 3. Female Subject of childbearing potential1 and male subjects with female partner of childbearing potential1 is willing to use highly effective contraceptive methods during the study (adequate: combined hormonal contraception associated with inhibition of ovulation, progestogen-only hormonal contraception associated with inhibition of ovulation, intrauterine device, intrauterine hormone-releasing system, bilateral tubal occlusion, vasectomized partner2, sexual abstinence3).
  • For the purpose of this document, a female is considered of childbearing potential (FCBP), i.e. fertile, following menarche and until becoming post-menopausal unless permanently sterile. Permanent sterilisation methods include hysterectomy, bilateral salpingectomy and bilateral oophorectomy. A postmenopausal state is defined as no menses for 12 months without an alternative medical cause. A high follicle stimulating hormone (FSH) level in the postmenopausal range may be used to confirm a post-menopausal state in women not using hormonal contraception or hormonal replacement therapy. However in the absence of 12 months of amenorrhea, a single FSH measurement is insufficient. For the purpose of this document, a man is considered fertile after puberty unless permanently sterile by bilateral orchidectomy
  • Vasectomized partner is a highly effective birth control method provided that partner is the sole sexual partner of the WOCBP trial participant and that the vasectomized partner has received medical assessment of the surgical success
  • In the context of this guidance sexual abstinence is considered a highly effective method only if defined as refraining from heterosexual intercourse during the entire period of risk associated with the study treatments. The reliability of sexual abstinence needs to be evaluated in relation to the duration of the clinical trial and the preferred and usual lifestyle of the subject. 4. All subjects must agree not to share medication. 5. Diagnosis of Idiopathic PD, inclusive of familial PD and genetic forms of L-Dopa responsive PD Age 18 - 75 years 7. Age at Parkinson's disease onset before 65 years 8. Disease duration ≥ 5 years 9. Oral medication constant for four weeks prior to baseline visit 10. Oral treatment with L-Dopa and non-ergot dopamine agonist(s) (any preparation, any dosage) 11. Presence of dopaminergic motor fluctuations based on patient history 12. Presence of dopaminergic neuropsychiatric (affective) fluctuations based on patient history 13. Presence of behavioural hyperdopaminergic syndrome including clinically relevant neuropsychiatric behavioural abnormalities according Ardouin Behavioural Scale Section 1, hypomanic symptoms, psychosis + Section 4 hyperdopaminergic behaviours (score ≥ 3), eventually further accompanied by impulse control disorders, a/o dopamine dysregulation, syndrome, a/o hallucination - psychosis spectrum; in case symptoms of the hallucination/psychosis or hypomania-mania spectrum are present, retained insight is mandatory at the time of study enrolment

Who cannot join

  • 1.Women during pregnancy and lactation. 2. History of hypersensitivity to the investigational medicinal product or to any drug with similar chemical structure or to any excipient present in the pharmaceutical form of the investigational medicinal product. 3. Participation in other clinical trials or observation period of competing trials over the past three months 4. Patients suffering from cognitive impairment (MoCA < 21) will be excluded for the major reason to obtain valid Ardouin assessments that will be hampered in case cognitive impairment (and therefore insight) is too severe 5. Acute paranoid psychosis without retained insight (however impulse control disorder or dopamine dysregulation syndrome are not an exclusion criterion; illusions or (pseudo)-hallucinations are not an exclusion criterion as long as there is no endangerment of the patients themselves or other persons owing to clinical judgement; patients may be eligible after remission of psychosis/suicidality) 6. Severe depression according to ICD-10 criteria; however, affective fluctuations with intermittent depressive symptoms (reversed by dopaminergic medication) are not an exclusion criterion 7. Active suicidality without self-distancing (however, suicidal ideation/thoughts or passive wishes of being dead are not an exclusion criterion as long as the patient is credibly distancing from it). 8. General contraindications for intestinal L-Dopa therapy (according to Lecigon® Fachinformation) 9. Gastrointestinal contraindications against PEG-J tube placement 10. Tremor-dominant PD without dopaminergic response fluctuationt Pre-existing device assisted therapy (DAT) immediately before study enrolment including with DBS, LCIG/LECIG, or subcutaneous therapy with apomorphine or foslevodopa; if patient terminated pre-existing subcutaneous therapy, the patient will be eligible after having received oral dopamine replacement therapy for at least 3 months 12. Malignancy in a non-remitted stage

Trial locations and contacts

7 sites in 1 country. Contact the study team or a site near you to ask about taking part.

7 sites in 1 country

Germany7 sites, 7 recruiting
  • Charité Campus Mitte

    Berlin

    Gregor Brandt, MD, +49 - (0)30 - 450 660478, gregor.brandt@charite.de

    Recruiting
  • Knappschaft Kliniken Bottrop GmbH

    Bottrop

    Carsten Eggers, Prof, +49 (2041) 15-1701, Carsten.Eggers@Knappschaft-Kliniken.de

    Not yet recruiting
  • Universitaetsklinikum Carl Gustav Carus Dresden an der Technischen Universitaet Dresden AöR

    Dresden

    Björn Falkenburger, Prof, +493514581154, Bjoern.Falkenburger@ukdd.de

    Recruiting
  • University Hospital Marburg

    Marburg

    David Pedrosa, Prof., +49 6421 58 65 175, david.pedrosa@staff.uni-marburg.de

    Not yet recruiting
  • DRK gemeinnützige Krankenhausgesellschaft mbH Saarland

    Saarlouis, Saarland, 66740

    Sarah Gößling, MD, +49 (0)6831 171-340, sarah.goessling@drk-kliniken-saar.de

    Recruiting
  • Centre for Neurology, Department forNeurodegenerative Disease, and Hertie-Institute forClinical Brain Research

    Tübingen, 72076

    Daniel Weiss, Prof, 0049 (0) 7071-29-82340, daniel.weiss@uni-tuebingen.de

    Recruiting
  • Parkinson-Klinik Ortenau GmbH & Co. KG

    Wolfach

    Wolgafng Jost, Prof, w.jost@parkinson-klinik.de

    Recruiting

Other trials in Germany

About this study

This study is a Phase III multicentric randomized controlled trial with parallel group design and waiting list in patients that have an indication to undergo intestinal L-Dopa + entacapone (Lecigon®) under the existing indication criteria (according to SmPC (Fachinformation) Lecigon®). As primary endpoint, we will analyze the difference of the pre-interventional baseline and 6-month follow-up on the "hyperdopaminergic symptoms" corresponding to section 3 of the "Ardouin Behavioural Scale" hypothesizing on the superiority of LECIG therapy compared to best medical treatment.

Being tested
LECIG (levodopa, carbidopa, entacapone intestinal gel), Best oral medication
Keywords
LECIG, device assisted therapy, motor and non-motor fluctuations, dopaminergic complications, impulse control disorder, levodopa seeking, dopamine dysregulation syndrom, dopamine agonist, intestinal levodopa
Medical subject headings
Parkinson Disease, Disruptive, Impulse Control, and Conduct Disorders

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • LECIG (levodopa, carbidopa, entacapone intestinal gel)Drug

    intestinal L-Dopa + entacapone (Lecigon®)

  • Best oral medicationDrug

    Best oral medication

Study groups in NCT07151378
Study groupRoleWhat they receive
Best oral medical treatment: the patients in this arm will be continue the treatment they were in fActive comparatorAmog others L_DOPA + Decarboxymethylasehemmer Dopamine agonist Amantadine COMT-Inhibitors
Receives: Drug: Best oral medication
Lecigon®ExperimentalNot described
Receives: Drug: LECIG (levodopa, carbidopa, entacapone intestinal gel)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Ardouin Behavioral Scale (hyperdopaminergic syndrome)

    To show superiority of LECIG therapy compared to best medical treatment on "hyperdopaminergic symptoms" corresponding to Section 1 (items 2 \& 4), and section 4 (all items) of the "Ardouin Behavioural Scale" between pre-interventional baseline and 6- month follow-up

    Measured: 6 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Sep 2025
  2. Study start27 Oct 2025
  3. Primary completion22 Sep 2030 (estimated)
  4. Study completion22 Sep 2030 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
150 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07151378
Sponsor's protocol ID
INITIATE-LECIG
Other IDs
2025-521048-39-00, 2025
Acronym
INITIATE-LECIG
Status last verified
Aug 2025
First submitted
27 Jun 2025
Last updated
13 Jul 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Weintraub D, Koester J, Potenza MN, Siderowf AD, Stacy M, Voon V, Whetteckey J, Wunderlich GR, Lang AE. Impulse control disorders in Parkinson disease: a cross-sectional study of 3090 patients. Arch Neurol. 2010 May;67(5):589-95. doi: 10.1001/archneurol.2010.65.

    PubMed 20457959
  • Lhommee E, Wojtecki L, Czernecki V, Witt K, Maier F, Tonder L, Timmermann L, Halbig TD, Pineau F, Durif F, Witjas T, Pinsker M, Mehdorn M, Sixel-Doring F, Kupsch A, Kruger R, Elben S, Chabardes S, Thobois S, Brefel-Courbon C, Ory-Magne F, Regis JM, Maltete D, Sauvaget A, Rau J, Schnitzler A, Schupbach M, Schade-Brittinger C, Deuschl G, Houeto JL, Krack P; EARLYSTIM study group. Behavioural outcomes of subthalamic stimulation and medical therapy versus medical therapy alone for Parkinson's disease with early motor complications (EARLYSTIM trial): secondary analysis of an open-label randomised trial. Lancet Neurol. 2018 Mar;17(3):223-231. doi: 10.1016/S1474-4422(18)30035-8.

    PubMed 29452685
  • Weintraub D, Mamikonyan E. The Neuropsychiatry of Parkinson Disease: A Perfect Storm. Am J Geriatr Psychiatry. 2019 Sep;27(9):998-1018. doi: 10.1016/j.jagp.2019.03.002. Epub 2019 Mar 9.

    PubMed 31006550
  • Calabresi P, Di Filippo M, Ghiglieri V, Tambasco N, Picconi B. Levodopa-induced dyskinesias in patients with Parkinson's disease: filling the bench-to-bedside gap. Lancet Neurol. 2010 Nov;9(11):1106-17. doi: 10.1016/S1474-4422(10)70218-0. Epub 2010 Sep 27.

    PubMed 20880751
  • Weiss D, Ebersbach G, Moller JC, Schwarz J, Arlt C, Fritz B, Sensken SC, Eggert K. Do we start too late? Insights from the real-world non-interventional BALANCE study on the present use of levodopa/carbidopa intestinal gel in advanced Parkinson's disease in Germany and Switzerland. Parkinsonism Relat Disord. 2022 Oct;103:85-91. doi: 10.1016/j.parkreldis.2022.08.018. Epub 2022 Aug 24.

    PubMed 36087571
  • Weiss D, Jost WH, Szasz JA, Pirtosek Z, Milanov I, Tomantschger V, Kovacs N, Staines H, Amlani B, Smith N, van Laar T. Levodopa-Entacapone-Carbidopa Intrajejunal Infusion in Advanced Parkinson's Disease - Interim Analysis of the ELEGANCE Study. Mov Disord Clin Pract. 2025 Aug;12(8):1075-1085. doi: 10.1002/mdc3.70046. Epub 2025 Mar 25.

    PubMed 40129359
  • Weiss D, Volkmann J, Fasano A, Kuhn A, Krack P, Deuschl G. Changing Gears - DBS For Dopaminergic Desensitization in Parkinson's Disease? Ann Neurol. 2021 Nov;90(5):699-710. doi: 10.1002/ana.26164. Epub 2021 Jul 20.

    PubMed 34235776

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing LECIG (levodopa, carbidopa, entacapone intestinal gel) and Best oral medication in people with PARKINSON DISEASE (Disorder), run by University Hospital Tuebingen at 7 sites in Germany.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 13 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Daniel Weiss, Prof (0049 (0) 7071-29-82340, Daniel.weiss@uni-tuebingen.de), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Ardouin Behavioral Scale (hyperdopaminergic syndrome) (time frame: 6 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT07151378, which also lists 7 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Jul 2026.

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