# Study of the Inhibition of [11C]R-rolipram Binding to Brain Phosphodiesterase - 4 (PDE-4) by HT-0712

> **NCT01215552** · PHASE1 · TERMINATED · sponsor: **Dart NeuroScience, LLC** · enrollment: 3 (actual)

## Conditions studied

- Healthy Elderly Volunteers

## Interventions

- **DRUG:** HT-0712

## Key facts

- **NCT ID:** NCT01215552
- **Lead sponsor:** Dart NeuroScience, LLC
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** TERMINATED
- **Start date:** 2010-09
- **Primary completion:** 2010-11
- **Final completion:** 2011-01
- **Target enrollment:** 3 (ACTUAL)
- **Why stopped:** The experimental design was not sufficient to answer the proposed questions. A new study design is now being considered.
- **Last updated:** 2011-06-01


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01215552

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01215552, "Study of the Inhibition of [11C]R-rolipram Binding to Brain Phosphodiesterase - 4 (PDE-4) by HT-0712". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT01215552. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*
