Welcome to Philadelphia, PA
Our studies
Our Philadelphia, PA studies
This location is a screening center only. The actual studies will be conducted at the Marlton clinic. Free transportation is available from the Philadelphia location or a location of your choice (home, train station, etc.) to the Marlton clinic. A screening center is where initial questionnaires and assessments are done to determine whether a volunteer qualifies for further participation in a clinical trial. It is staffed by qualified medical and study personnel. To speak with us, click here.

Our study participants are providing the most valuable information we have, but we never forget that each participant is a person.

Our commitment

Our people are passionate about clinical research and advancing the future of medicine. PRA manages an average of 150 studies per year around the world at our various clinical research sites.

We have an experienced team of physicians, clinic and support staff dedicated to making our participants' experience as positive and comfortable as possible. Participant safety is our top priority at all times.

early phase studies per year
Welcome to Philadelphia

Our Philadelphia screening center, conveniently located near major downtown transportation hubs, provides our participants with an easily accessible location to find out if they are eligible to enroll in one of our Marlton, NJ studies. Our friendly staff are there to help you understand what participating in a clinical trial involves and to guide you through the screening process.

In Marlton, we have experience in a wide range of clinical trials including:
  • Psychiatric and neurological disorders

  • Alzheimer’s disease
  • Mild cognitive impairment (MCI)
  • Parkinson’s disease
  • Depression
  • Post-partum depression
  • Anxiety
  • Addiction
  • Pain
  • Attention deficit disorder (ADD)
  • Attention deficit hyperactivity disorder (ADHD)
  • Bipolar disorder
  • Diabetes
  • Tourette’s syndrome
  • Infectious disease
  • Pediatric trials

Get in Touch
1335 West Tabor Road, Suite 104-06 Philadelphia, PA 19141
(866) 549-3112 (866) 549-3112
Our team
David G. Krefetz, DO, MBA

David G. Krefetz, DO, MBA is board certified in Psychiatry and Child and Adolescent Psychiatry. He is also a Certified Physician Investigator. He has over 30 years of experience providing medical care in clinical and psychiatric research. He has been with the PRA site since 2004 and has conducted over 250 clinical trials.

Sarah Kazmi
Director of Clinical Research Services

Sarah Kazmi is the Director of Clinical Research Services at Marlton, NJ. Sarah holds a Doctorate in Medicine and comes to PRA with almost 10 years of research experience in Phase I-IV clinical trials. Some of her previous work has been in indications such as Respiratory, Stroke, Diabetes and CNS. She has been with PRA since April 2015.

Upcoming events

There are no upcoming events for now.

Actual study participant
Lenexa, KS
“Enjoyed my stay and the staff are wonderful.”
Actual study participant
Lenexa, KS
“All employees were extremely courteous and helpful.”
Actual study participant
Lenexa, KS
“Wonderful staff. I am a newbie, but friendly and helpful staff eased the apprehensions.”
Actual study participant
Lenexa, KS
“PRA has an excellent staff from recruiters to medical staff, and a nice, clean facility.”
Actual study participant
Lenexa, KS
“It looks to me like PRA staff is courteous and very knowledgeable of the proceedings and well-being of every participant.”
Actual study participant
Lenexa, KS
“The staff at PRA is wonderful. Very professional and friendly.”
Actual study participant
Lenexa, KS
“Staff is friendly and professional.”
Frequently asked questions
Can I have visitors if I’m staying at the clinic?

In most cases, you can have visitors during approved visiting hours. Visitors must bring an ID.

Once I’ve completed a study, how much time must I wait before enrolling in a new study?

Depending on the study you participate in, you may have to wait 30 or more days to enroll again.

How long are the study visits?

Each study will have different requirements for the visits. Some may be as short as 30 minutes and some may be extended in house stays.

Do you provide transportation?

Yes, we provide door to door transportation to help get your to your study visits and back home safely.

Is smoking allowed in studies?

Smoking is generally allowed, but some studies may have restrictions. You will learn about these restrictions during the screening visit.

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