Eligibility Criteria:
Inclusion Criteria:
* Patients with idiopathic Parkinson's disease according to the United Kingdom Parkinson's Disease Society Brain Bank (UKPDSBB), since at least three years,or treated by L-dopa for 2 years minimum with motor fluctuations (amendment 12/10/2010)
* Patients aged between 35 and 70 years inclusive,
* L-Dopa responders: L-Dopa test with an improvement of over 30 % of UPDRS-III motor score,
* L-Dopa treatment since at least three years,
* Patients with Parkinson's disease stage maximum IV ("OFF" state) according to the modified Hoehn and Yahr classification (without treatment since at least 12 hours), and III maximum in "ON" state,
* Non smoker,
* Signed Informed Consent
Exclusion Criteria:
* Previous neurosurgery for Parkinson's disease,
* Weight \< 45 kg or \> 100 kg,
* Previous Parkinson's disease treatment by transdermal nicotine-therapy discontinued less than 6 months before inclusion,
* History of allergy to Nicotine,
* History of allergy to transdermal device,
* Cutaneous disorders wich could disturb use of transdermal device,
* Cognitive disorders, (Mattis score \< 125)
* History or detection at inclusion of cardiac arrhythmia,
* History of coronary failure,
* History of cardiac failure, (NYHA from II to IV \& ejection fraction (EF) \< 40%)
* Severe arterial hypertension (diastolic \> 100 mmHg) or uncontrolled,
* Symptomatic orthostatic hypotension, (2 points of differential in standing position and systolic \<100mm Hg or clinical evidence)
* History of stroke or occlusive peripheral vascular disease,
* History of hyperthyroid,
* History or detection at inclusion of type I or II diabetes, (HbA1c \< 11%)
* History of pulmonary disease: asthma, chronic obstructive pulmonary disease (COPD),
* History of auto-immune disease,
* Progressive depression, suicide attack, acute psychosis, invasive hallucinations, psychiatrist opinion harmful for a correct compliance to experimentation,
* History or recent gastroduodenal ulcer, (\< 3 months)
* History or detection at inclusion of hepatobiliary or renal failure, (clearance\< 60 mL/min)
* Pregnancy, breast-feeding,
* Absence of effective contraception in women in childbearing potential,
* Treatment by nifedipine, beta-blockers, diuretics, insulin and H2 antihistaminics for potential side effects in combination with nicotine,
* Patients unlikely to be compliant or to fully cooperate during the study.