Ambulatory & Chronic Disease

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The Ambulatory & Chronic Disease (ACD) Clinical Trials Support Unit (CTSU) is the home for all chronic, non-ICU diseases in the adult population, excluding cancer and cardiovascular disease, which constitute the majority of clinical trials in the ambulatory Internal Medicine divisions and Department of Ophthalmology & Visual Sciences. Specialties supported by the ACD CTSU include, but are not limited to, rheumatology, endocrinology, pulmonary medicine, geriatrics, nephrology, gastroenterology, and ophthalmology, which account for a large number of the ambulatory trials within Michigan Medicine.

The ACD CTSU enhances the efficiency of the pre-award process by streamlining and reducing the timeline of contract negotiations and regulatory approvals. Post-award support is offered for optimal revenue and follows best practices for clinical research. Best practice implementation is promoted by all ACD CTSU team members, and the CTSU continues to support research clusters with a track record of success. ACD provides mentorship and pre- and post-award resources to fund junior faculty who embark on a mentored clinical research program. The ACD CTSU has faculty with extensive experience in launching multicenter clinical trials that can be accessed as a resource for study teams in other CTSUs.


A research study in which one or more human subjects are prospectively assigned to one or more interventions (which may include placebo or other control) to evaluate the effects of those interventions on health-related biomedical or behavioral outcomes. Correctly identifying whether your study is a clinical trial is crucial in complying with NIH policies and Michigan Medicine.

If you answer yes to the following questions, then your study qualifies as a clinical trial:

  • Does the study involve one or more human subjects?
  • Does the study involve the use of one or more interventions?
  • Does the study prospectively assign human subject(s) to an intervention(s)?
  • Does the study have a health-related biomedical or behavioral outcome(s)?

Learn more about the NIH Clinical Trial Definition at

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Feasibility Review Support
The Feasibility Review, conducted by the appropriate CTSU, looks at the whole picture of a potential clinical trial to prevent unexpected challenges in its execution and to open to accrual in a timely manner. LEARN MORE.


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Pre-/Post-Award Support
Clinical Trials Support Units keep studies on track during the pre- and post-award process. A CTSU portfolio manager follows a study along its lifecycle and assists teams on their path to study activation. LEARN MORE.

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Study Coordinator Support
Principal Investigators can ultimately find a smoother process and save time by taking advantage of our study coordinator pool, which can provide investigators with team members who are already on staff and fully trained. LEARN MORE.


375 ACD Studies          120 ACD Principal Investigators          4,128 ACD Subjects


Medical Director

Peter Higgins, M.D., Ph.D.

Portfolio Managers

Elizabeth, 734-764-4048



Contact us at

MBNI Building, 205 Zina Pitcher Place, Ann Arbor, MI 48105

A list of ACD CTSU contacts are available in the Personnel Directory.