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AbbVie’s Tavapadon Reduces Motor Impairments in Phase III Parkinson’s Trial

AbbVie’s Tavapadon Reduces Motor Impairments in Phase III Parkinson’s Trial

In the clinical trial, tavapadon demonstrated a statistically significant improvement in motor function and daily living activities.

AbbVie has announced encouraging topline results from its Phase III TEMPO-2 clinical trial, evaluating tavapadon as a monotherapy for early Parkinson’s disease.

The trial met its primary and key secondary endpoints, demonstrating significant improvements in motor and daily living functions. These findings underscore tavapadon’s potential as a first-in-class treatment option, addressing unmet needs with strong efficacy and manageable side effects.

The TEMPO program forms the foundation of AbbVie’s efforts to develop tavapadon as a versatile therapy.

TEMPO-1 and TEMPO-2 focus on early-stage monotherapy, while TEMPO-3 evaluates adjunctive use with levodopa for advanced stages.

TEMPO-4 is a long-term extension study assessing safety and tolerability.

TEMPO-1 recently reported positive results, and TEMPO-3 outcomes are anticipated in early 2025, aligning with AbbVie’s plans for a New Drug Application (NDA) submission.


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Tavapadon is a selective D1/D5 receptor partial agonist, designed to stimulate dopamine receptors critical for motor control.

Unlike therapies reliant on levodopa — which often wear off and cause motor complications — tavapadon may offer a more selective and sustainable approach.

Alongside its work on early-stage Parkinson’s disease, AbbVie is addressing advanced stages with Vyalev (foscarbidopa and foslevodopa), a recently US Food and Drug Administration (FDA)-approved 24-hour subcutaneous infusion of levodopa that provides continuous motor symptom control.

The TEMPO-2 trial enrolled 304 adults aged 40 to 80 with early-stage Parkinson’s disease.

Participants were randomized to receive tavapadon (5 to 15 mg daily) or placebo over 27 weeks.

Results showed a statistically significant improvement in Movement Disorder Society – Unified Parkinson’s Disease Rating Scale (MDS-UPDRS) Part II (motor experiences of daily living, such as dressing and speaking) and Part III (clinician-assessed motor symptoms, including tremors and rigidity) combined scores (tavapadon: -10.3; placebo: -1.2).

The MDS-UPDRS, ranging from 0 to 184, quantifies motor symptom severity and functional impairments.

Higher scores indicate greater symptom burden, while lower scores reflect improvements.

Tavapadon demonstrated a meaningful reduction in scores, highlighting its efficacy in improving motor function and daily activity performance.

AbbVie’s efforts extend beyond Parkinson’s disease.

Recent initiatives include a collaboration with Gedeon Richter to develop neuropsychiatric therapies and the acquisition of Aliada Therapeutics, whose blood-brain barrier-crossing technology could advance treatments for Alzheimer’s disease and other central nervous system (CNS) disorders.

If approved, tavapadon could become a groundbreaking once-daily treatment, offering new hope for patients managing the complexities of Parkinson’s disease.