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Voluntary Visiting Researchers

Since 1988 over 500 Visiting Researchers from prestigious institutions throughout the world have trained for periods of 1-5 years at Cleveland Clinic Florida.

These highly motivated physicians have collectively participated in over one thousand research protocols culminating in a similar number of presentations and publications at prestigious meetings and in leading peer review journals, respectively.

Most of our alumni graduates from our research programs are now recognized educators and academic practitioners at numerous prestigious hospitals and universities throughout the world.

Available Visiting Research Programs

  • Anesthesia
  • Cardiology
  • Colorectal Surgery
  • Endocrinology
  • Emergency Room  
  • Gastroenterology
  • Medicine
  • Minimally Invasive Surgery
  • Neurology
  • Orthopaedic Surgery
  • Pulmonary Medicine
  • Radiology
  • Urogynecology
  • Urology
  • Sleep Study
  • Vascular Medicine
  • Voiding Dysfunction;

Current Trials

Colorectal Surgery Visiting Research

Introduction

Cleveland Clinic Florida's Department of Colorectal Surgery maintains an average of six to 24 month non-funded Visiting research positions in colorectal surgery. These positions are available to general or colorectal surgeons who wish to gain additional experience in both the practical and academic aspects of colorectal surgery. There are over 75 ongoing prospective studies with which the Visiting researchers become immediately involved. special interest areas or other projects may be pursued in addition to those studies already in progress.

Presentations

Much of the research relates to anorectal physiology, laparoscopy, inflammatory bowel disease, and carcinoma. Recent projects by our research residents have been presented in many prestigious organizations:

  • American College of Gastroenterology
  • American College of Surgeons
  • American Society for Gasrointestinal Endoscopy
  • Argentine Surgical Society
  • Asian Federation of Coloproctology of Great Britain and Ireland
  • Association of Coloproctology of Great Britain and Ireland
  • Brazilian Society of Coloproctology
  • Central European Society of Coloproctology
  • European Association of Endoscopic Surgery
  • Florida Gastroenterologic Society
  • Florida Society of Colon and Rectal Surgeons
  • German Surgical Society
  • International Society of University Colon and Rectal Surgeons
  • Israeli Surgical Society
  • Italian Society of Colorectal Surgeons
  • Italian United Coloproctology
  • Latin American Association of Colorectal Surgery
  • Latin American Society of Endoscopic Surgeons
  • Mediterranean Society of Coloproctology
  • Northeastern Society of Colon and Rectal Surgeons
  • Pan Asian Congress of Coloproctology
  • Society of American Gasrointestinal Endoscopic Surgeons
  • Society of Laparoendoscopic Surgeons
  • Society of Surgical Oncology
  • Society for Surgery of the Alimentary Tract
  • South Florida Chapter of the American College of Surgeons
  • Southern Medical Association
  • Southern Surgical Society
  • Surgical Research Society (Great Britain)
  • Swiss Surgical Society
  • Taiwanese Society of Colon and Rectal Surgeons
  • The American Society of Colon and Rectal Surgeons
  • World Congress of Endoscopic Surgery
  • World Congress of Gastroenterology

Over 75 chapters, manuscripts, and abstracts were published by the members of the Department during the last year. A list of recently published projects is available upon request.

Resident Functions

One of the primary functions of Visiting researcher is to become familiar with the Anorectal Physiology Laboratory and to help perform and interpret the physiologic studies. Researchers thus gain a broad familiarity with the indications for, techniques of, and interpretations of anorectal manometry, rectal compliance, colonic and small bowel transit studies, cinedefecography, anal electromyography, pudendal nerve terminal motor latency assessment, and anorectal ultrasonography. In addition, time is spent working with the biofeedback therapist and learning the techniques of biofeedback therapy.

Visiting Researcher are welcome to participate in the clinical aspects of the practice as time permits. There is an exceedingly busy clinical practice with six full time staff colorectal surgeons, Drs. Steven Wexner, David Maorn, Juan Nogueras, Eric Weiss, and Dana Sands, Giovanna Da Sliva. In addition to the clinical residents,Visiting researcher, and observers, there are nurse clinicians who assist in patient care and help with much of the day-to-day patient management. This involvement allows the visiting researcher more time for interaction in the operating room, endoscopy suite, office, and physiology lab. In addition, there are several dedicated colorectal clinic nurses, enterostomal therapists, and biofeedback therapists.

Clinical Procedures

Over 150 patients are seen in the office each week and evaluated for a wide gamut of colorectal complaints. Procedures such as rubber band ligation of internal hemorrhoids, excision of thrombosed external hemorrhoids, superficial fistulotomies, incision and drainage of abscesses, incision and drainage of pilonidal abscesses, rectal and perianal biopsies, and fulguration of lesions are performed in the clinic.

In addition, there are over 20 rigid proctoscopies and flexible sigmoidoscopies performed in the clinic setting each week. Over 75 colonoscopies are performed each week, approximately two-thirds of which are therapeutic rather than diagnostic. There are usually over 20 resections performed in the hospital each week including segmental and total abdominal colectomies, low anterior resections, abdominoperineal resections, total proctocolectomies, ileoanal reservoirs, proctopexies for prolapse, small bowel resections, and colostomy and ileostomy related procedures. Many of these procedures are laparoscopically performed.

Over 500 ileoanal pouches and over 500 laparoscopic colectomies have been performed in the last few years. There is also a heavy emphasis on procedures relating to disorders of evacuation such as sphincteroplasty, the artificial bowel sphincter, radiofrequency and sacral nerve stimulation for fecal incontinence, perineal rectosigmoidectomy with levatoroplasty for rectal procidentia, and anoplasty for stenosis. In addition, the standard spectrum of anorectal operations is also performed. Visiting Researchers are involved in these procedures so that they become proficient with the indications for, techniques of, and results of these various therapies.

Conferences

There are a number of formal educational conferences including anorectal physiology conference and an ultrasound conference in which all the studies from the previous few days are reviewed and a treatment outline is made. There is also a core curriculum conference each week at which a single topic in colorectal disease is discussed at length by all of the members of the department. In addition, there are several interdisciplinary conferences, including a colorectal surgery radiology conference which alternates with a colorectal surgery pathology conference. At each of these conferences, either the radiologist or pathologist reviews the interesting studies from the previous two weeks with the staff and residents from each department. Case management conferences are held on a bimonthly basis and consist of a case by case presentation of all scheduled surgical procedures which are then discussed with the staff. These conferences have proven invaluable, not only in terms of an enhanced comprehension of patient management and appreciation for continuity of care, but also in preparation for board examinations.

The Colorectal Surgery Department hosts a monthly Journal Club and a Tumor Conference. To complement the input of the staff from Cleveland Clinic Florida, many of the community colorectal surgeons participate in these conferences. This interaction enables the residents to benefit from additional opinions. There are also a monthly Colorectal Surgery Morbidity and Mortality Conference, and Colorectal Surgery Research Forums.

In addition to the conferences outlined above, standard surgical conferences for the Division of Surgery include Morbidity and Mortality and Grand Rounds. While participation in all of the colorectal surgery conferences is mandatory, participation in the general surgical conferences is optional.

It is expected that the colorectal surgery resident will attend the International Colorectal Disease Symposium in Fort Lauderdale which is held every February. Over 1,000 surgeons and physicians from 65 countries attend this three day course.

Furthermore, multiple annual colorectal laparoscopic surgical courses are coordinated by the Department. Resident participation in these courses is also possible. Lastly, three times each year, the Department hosts visiting professors for one day each. Previous visiting professors have included Drs. Stanley M. Goldberg, Herand Abcarian, David Schoetz, Thomas Dailey, H. Randolph Bailey, Marvin Corman, Indru Khubchandani, Ira Kodner, David Rothenberger, Zane Cohen, David Beck, Phil Gordon, James Fleshman, John Pemberton, Robert Beart, Robert Fry, Lee Smith, Patricia Roberts, Terry Hicks, and Alan G. Thorson.

The visiting professor program is designed to permit full interaction between the visiting professor and the residents. It is anticipated that the resident will submit at least one paper for presentation at the annual meeting of the American Society of Colon and Rectal Surgeons or a similar prestigious national or international meeting. The residents are expected to present at the South Florida Chapter of the American College of Surgeons meeting in May. Each resident is also encouraged to submit work done at CCF for presentation in their own geographic area.

Basically, the Visiting researcher year can be tapered to suit one’s needs. Eligible Visiting Research may choose to apply for the clinical residency either at CC Florida or elsewhere, and others may wish to participate only in the Visitin research year. Quite a number of non-physiology research projects are currently underway. Other areas of special interest may be addressed. Past Visiting researchers have found the environment to be most stimulating and rewarding.

Visiting Researcher/

To Apply

Interested candidates should write to Graduate Medical Education for additional information and application forms. After acceptance to the position, contingent upon external funding, the Cleveland Clinic Educational Foundation will assist in providing the necessary forms to obtain the appropriate visa.

Due to the large number of applications received for these few positions, the appointments are made based upon how promptly the application process is completed. Also, due to the amount of paperwork required, it is not uncommon to begin the application process one year to eighteen months prior to the anticipated start date. Delay in completion of the application process, including written confirmation of funding, may result in a later starting date.

More Information

GME Coordinator
Lorna Lewis
Cleveland Clinic Florida
Research and Education
Phone: 954.659.6418
Email: gme@ccf.org

Orthopaedic Visiting Research

Goals

  • Investigate basic and clinical aspects of the disease processes affecting the musculoskeletal system.
  • Assist the members of the department with ongoing research projects, studies, manuscripts and chapter/textbook writing.
  • Participate in research meetings, seminars, journal clubs, symposiums and professional society meetings.

Prerequisite Educational Level or Credentials

  • Recent medical graduates, residents, physicians and scientist interested in conducting basic science and clinical research in the field of orthopaedics.

Description of Program

(may include research projects, conferences and meetings)

  • The term of a Visiting Researcher will be either 6 months or 12 months. The Visiting Researcher will be working primarily on research interest on a self-directed basis with an emphasis on operative care (operative suite) and non-operative care (outpatient clinic office, inpatient and hospital care) assistance.
  • During the visiting research program at Cleveland Clinic in Florida candidates will demonstrate proficiency in the varied aspects of basic and clinical research including study design, IRB compliance, informed consent, data collection, data analysis, statistics, oral presentation, and manuscript preparation.
  • The researcher will be responsible for a minimum of one study to be completed for presentation at a local, regional, national or international research or professional society meeting and/or submission for publication in a peer-reviewed journal.

Level of Supervision

  • The Researcher will work under the direction of Gregory Gilot, MD, Program Director, Pretesh Patel, MD, Brian Leo, MD, Jeffrey Wu, MD, David Westerdahl, MD, Vinod Podichetty, MD

Program Director

Pretesh Patel, MD

More Information

Department of Orthopaedic Surgery
Attn:  Lorna Lewis
Cleveland Clinic Florida
2950 Cleveland Clinic Blvd.
Weston, FL 33331
Phone: 954.659.6418
Fax: 954.659.5622
Email: lewisl2@ccf.org

Emergency Medicine

The department of Emergency Medicine offers a Voluntary Visiting Research positions typically lasting for a period of one year. Cleveland Clinic will provide access to research facilities, libraries and electronic health records and cover expenses for presentations at conferences, Currently, there is no monetary stipend available

Goals and Objectives:

  • Advancing academics and research in the field of emergency medicine.
  • Initiate original research in areas of emergency medicine that would improve understanding of patient behavior, diagnostic protocols, treatment modalities or patinet outcomes in the acute setting.
  • Present case repots regarding interesting pathologies or unusual presentations of acute illness/injuryfor journal submission or conference presentation.
  • Assist in educating medical students regarding research and the specialty of emergency medicine.

      Prerequisite Educational Level or Credentials

      • Recent medical graduates, residents, physicians and scientist interested in conducting basic science and clinical research in the field of Emergency medicine.
      • Diploma from and accredited allopathic or Osteopathic medical school.
      • USMLE scores of 200 or higher on Step 1 and Step 2Ck.
      • Eligible for Flroida Limited License (expense Covered by Cleveland Clinic Florida).

          Description of Program

          • During the visiting research program at Cleveland Clinic in Florida candidates will demonstrate proficiency in the varied aspects of basic of clinical research including study design, IRB compliance, data collection, data analysis, statistics, oral presentation, and manuscript preparation.
          • The researchers will be responsible for a minimum of one study to be completed for presentation at a professional society meeting and/or submission for publication in a peer-reviewed journal.

          Faculty:

          • Dr.Mazay Rouhani, Dr. Jalil Thurber

              Program Director

              Jalil Thuirber, MD

              More Information

              Department of Emergency Medicine
              Attn:  Lorna Lewis
              Cleveland Clinic Florida
              2950 Cleveland Clinic Blvd.
              Weston, FL 33331
              Phone: 954.659.6418
              Fax: 954.659.5622
              Email: lewisl2@ccf.org

            • For more information or if you are interested in applying for the Research Fellowship please contact Graduate Medical Education Via emai below. Please include your Curriculum Vitae (CV) if you are responding via email.
        • Endocrinology

          The Endocrinology Diabetes and Metabolism department offers Voluntary Visiting Research Positions that start on January and July of every Year. The Duration of the program is 6 months to 2 years. There is no funding at the moment, however there is financial coveragefor educational, Materials, Presentations, Conferences and Publications.

          Goals

          • Education in Clinical Research methodology
          • Assist the department with ongoin research projects,studies, manuscripts anmd/or chapter/textbook writing.
          • Participate in research meetings, seminars, journal clubs, symposiums and professional society meetings.

              Prerequisite Educational Level or Credentials

              • Recent medical graduates, residents, physicians and scientist interested in conducting basic science and clinical research in the field of Endocrinology.

              Description of Program

              (may include research projects, conferences and meetings)

              • The term of Voluntary Visiting research will be a minimum of 6 months might be extended to 2 years. This is a Clinical Research Program. The visiting researcher and Supervisor will decide on the projects that will be completed.
              • During program at Cleveland Clinic in Florida candidates will demonstrate proficiency in the varied aspects of basic of clinical research including study design, IRB compliance, data collection, data analysis, statistics, oral presentation, and manuscript preparation.
              • The Visiting Rerssearcher will be responsible for a minimum of one study to be completed for presentation at a local, regional, national or international research or professional society meeting and/or submission for publication in a peer-reviewed journal.
              • This program provides a wide diversity of clinical research possibilites in our field, including: Diabetes, thyroid, adrenal, bone and pituitary disease.

              Level of Supervision

              • The Visiting researcher will work under the direction of Jose Cabral, MD, Chair of the department and Carmen Vanessa Villabona, MD, Program Director and might also be supervised by department staff physicians: Pascual Desantis, MD, Vineeth Mohan, MD, Tessey Jose,MD, Sandra Williams , MD and Susan Boston, MD.

              Program Director

              Carmen Vanessa Villabona, MD

              More Information

              Department of Endocrinology
              Attn:; Lorna Lewis
              Cleveland Clinic Florida
              2950 Cleveland Clinic Blvd.
              Weston, FL 33331
              Phone: 954.659.6418
              Fax: 954.659.5622
              Email: lewisl2@ccf.org

            • Hematology/Oncology

              Goals

                Introduction

                The Voluntary Visiting Research program is avaliable to national and international physicians who have interest in developing and expanding research in the evaluation and management of solid tumor and hematologic malignancies. These non-funded positions are avaiable for periods of 6 months to 5 years. A faculty mentor from the Department of Hematology Oncology will be assigned as a mentor to each fellow, according to the fellow's research area(s) of interest.

                Goals and Objectives

                The visiting researcher will periodically and regularly meet his/or her mentor for advice, suggestions and guidance in research throughout the research period.

                Prior to initiating any clinical research, the fellow must complete the Collaborative IRB training Initiative (CITI) which contains information about regulationsgoverning human research, ethical principles, processes, procedures, informed consent, and the like, This educatinal program can be accessed online at www.miami.edu/citireg which enables the fellow to receive a password and instructions
              • The visiting researchers are expected to formulate at least one research project each year, The proposal should be written and presented at the Department Research Forum, which is held twice per month. Attendance at every meeting is mandatory for all Visiting Researcher and Clinical Fellows. The purpose of discussing research projects at these meetings is to provide interactive critiques, ideas, adn guidance from peerr. All new projects must be sumbitted to the Research Forum for Discussion in the Research Forum must be typed in an appropriate format and submitted to the Academic Supervisor for inclusion in the next research Forum.
              • Research abstracts must be prepared by the Visiting Researcher. They will be submitted to national and international meetings,after review and approval by the Deparmtent of Hematology Oncology staff and the Chairman. If accepted, the fellow is expected to prepare a power point presentation for practice talk sessions, as assigned by the academic supervison.
              • Prior to any major national or international meeting at which residents from the Department will be presenting, practice talk sessions are scheduled for critique. These sessions require mandatory attendance as they are used to assist residents in preparation and practice of their talks. These sessions are scheduled as necessary and scheduled are provided at these times.
              • For alll abstracts created and submitted, regardless of acceptance to meetings, the research fellow is expected to write a manuscript. The manuscript will be reviewed by the respective staff involved in the research, the deparment chairman and the academic supervisor, and will be subitted to peer reviewes journals
              • Description of Program

                (may include research projects, conferences and meetings)

                • All visiting researchers will have also the opportunity to learn how to perform hematology oncology research in multicentered cooperative group studies, in pharmaceutical studies, and in community cooperative group studies with the oncology research coordinator.
                • The Visiting researcher should maintain knowledge and understanding within the field by participating in the academic program of the research program. The Department of hematology Oncology holds several conferencs such as Tumor boards weekly, Heme Path Conference monthly , Breast tumor conference weekly, research forum, and oncology grand rounds. All conferences, seminars and meetings are listed in the monthly department calendar, which is maintatined and distributes by the clinical Residency Coordinator. Attendance and sign-in mandatory for all Visiting Researches and Clinical fellows.
                • Visiting Researchers may particiapte in clinical activities if they are incolved in potential and or established research studies, by participating in the outpatient and inpatient setting. The fellow is encouraged to rotate with different staff members to broaden exposure and enhance their research experience.
                • All Visiting researchers will be evaluated based on overall performance, punctuality, conference participation, research productivty and quality and interpersonal relationships with the other fellows and members of the Department. Evaluation will be performed by the respective mentor and department chair on a periodic basis at the end of the fellowship.
                • Prerequisites Educational level or Credentials

                • Recent medical graduates, residents, physicians and scientist interested in conducting basic science and clinical research in the fiels of hematology oncology.
                • Licensure/USMLE required (if Applicable).
                • More Information

                  Department of Hematology Oncology
                  Attn:  Lorna Lewis
                  Cleveland Clinic Florida
                  2950 Cleveland Clinic Blvd.
                  Weston, FL 33331
                  Phone: 954.659.6418
                  Fax: 954.659.5622
                  Email: lewisl2@ccf.org

              Pulmonary Medicine

              The Pulmonary Medicine department offers Visiting Research positions that start on January and July of every year. Positions are usually for a year. There is monetary coverage for educational materials, presentations, conferences and publications, however at this moment there is no monetary stipend.

              Benefits:

              • Education in Clinical Research methodology
              • Conduct clinical research projects and get publications
              • Participate in the screening process of patients candidates for enrolment in multi-institutional clinical trials
              • Participate in the Pulmonary Outpatient Clinic, Inpatient Consults and Critical Care rounds in the ICU
              • Attend Internal Medicine Board Review lectures, teaching rounds, noon conferences, grand rounds and journal club
              • Assistance with the IM residency application process, Letters of recommendation, counseling and interview rehearsal sessions
              • Attend nationwide conferences and presentations of the Research work

              As a Medicine Visiting Researcher at Cleveland Clinic Florida you will have a diversity of research possibilities in different areas of our department.

              Your supervisor and you will decide on the projects that you will take on during your tenure. Research in pulmonary medicine involves a variety of opportunities including but not limited to coordinate and participate in a variety of complex activities involved in the collection, compilation, documentation and analysis of clinical outcomes, comparison between different device/procedures, and contribution in multi-institutional trials. It may include designing and presenting teaching videos and PowerPoint presentations for meetings, websites and other academic ventures.

              Patient Contact-In order to fully comprehend the executed research is of paramount importance to have a thorough clinical and technical understanding of protocols and procedures under investigation. Opportunities that are offered and part of the medicine research program include observation and participation in the procedure room or intensive care unit and patient visitations. Procedure room participation is limited to observation. Patient contact may be made for research purposes with adequate consent.

              You will get a Florida Limited License under Cleveland Clinic Florida (at our cost).

              Opportunities in the outpatient clinic include observation and participation in the outpatient clinic. Observation while either staff physicians and/or clinical residents are interviewing, examining or determining the assessment plan is available. Furthermore, under the supervision of a staff physician interviewing and examining patients will allow a better understanding of goals of research.

              Opportunities in the hospital comprise observation in intensive care unit, and patients in whom consultation has been requested. Observation while either the staff physician and/or the clinical residents are interviewing, examining or determining the assessment and plan are available. The hospital contact will allow for a significant understanding of pulmonary patients necessary for completing pulmonary research.

              Our recent graduate fellows have been successful in finding positions all around. One fellow is now in the internal medicine program at the Clinic, another has become a research coordinator in the industry, and another has found a position in a hospital in Florida.

              Application Process
              If you are interested in applying for the Research Fellowship in Medicine please contact our coordinator:
              Lorna Lewis
              Phone: 954.659.6418
              Email: lewisl2@ccf.org

              Please include your Curriculum Vitae (CV) if you are responding via email or fax it to 954.659.5451
              Attn: Research Fellowship in Medicine.

              Current Trials

              • IRB 8934 An Open-label, Multi-Center Study Employing a Targeted 6-MWT Distance Threshold Approach to Guide Bosentan-Based Therapy and to Assess the Utility of MRI on Cardiac Remodeling
                (Sponsor: Actelion Pharmaceuticals U.S., Inc.)
              • IRB 9046 ATHENA-1: An Open-label, Multicenter Study of Ambrisentan and a Phosphodiesterase
                Type-5 Inhibitor Combination Therapy in Subjects with Pulmonary Arterial Hypertension who
                have Demonstrated a Sub-Optimal Response to a Phosphodiesterase Type-5 Inhibitor
                (Sponsor: Gilead Science Inc.)
              • IRB 9069 A Phase 3, Multi-Center, Randomized, Double-Blind, Placebo-Controlled, Safety and
                Efficacy Study of Sitaxsentan Sodium in Subjects with Pulmonary Arterial Hypertension
                (Sponsor: Pfizer Inc.) Study being discontinued
              • IRB 9070 A Phase 3, Multi-Center, Open Label Study to Evaluate the Long-Term Safety of
                Monotherapy Sitaxsentan Sodium and Combination Therapy Sitaxsentan Sodium and
                Sildenafil Citrate in Subjects with Pulmonary Arterial Hypertension
                (Sponsor: Pfizer Inc.) Study being discontinued
              • IRB 9071 A Phase 3, Multi-Center, Randomized, Double-Blind, Efficacy and Safety Study of
                Monotherapy Sitaxsentan Sodium versus Combination Therapy with Sitaxsentan Sodium
                and Sildenafil Citrate in Subjects with Pulmonary Arterial Hypertension who have
                completed study B1321001
                (Sponsor: Pfizer Inc.) Study being discontinued
              • IRB 9073 Pulmonary Hypertension: Shared Medical Appointments (SMA)
              • IRB 9086 Comparison of smoking cessation outcomes in those with or without immediate placement to a
                smoking cessation clinic directly from hospital admission
              • IRB 9087 A Phase 2, Randomized, Double-blind, Placebo-controlled, Multicenter, Dose-ranging Study
                of Cicletanin in Subjects with Pulmonary Arterial Hypertension
                (Sponsor: Gilead Sciences, Inc.)
              • IRB 9112 A 24-week randomized placebo-controlled, double-blind multi-center clinical trial evaluating
                the efficacy and safety of oral QTI571 as an add-on therapy in the treatment of severe
                pulmonary arterial hypertension: Imatinib in Pulmonary arterial hypertension, a Randomized,
                Efficacy Study (IMPRES)
                (Sponsor: Novartis Pharmaceuticals Corporation)
              • IRB 9125 A Phase 3, Randomized, Double-Blind, Placebo-Controlled, Multi-Center, Parallel-Group
                Study to Evaluate the Efficacy and Safety of Ambrisentan in Subjects with Idiopathic
                pulmonary Fibrosis and Pulmonary Hypertension
                (Sponsor: Gilead Sciences Inc.)
              • IRB 9179 Biomarkers in Pulmonary Hypertension Treated with Imatinib
                (Sponsor: Novartis Pharmaceuticals Corporation)
              • IRB 9192 Home Healthcare Visits in Pulmonary Hypertension
              • IRB 9193 A 12-Week, International, Multicenter, Double-Blind, Randomized, Placebo-Controlled
                Comparison of the Efficacy and Safety of Oral UT-15C Sustained Release Tablets in
                Subjects with Pulmonary Arterial Hypertension
                (Sponsor: United Therapeutics)
              • IRB 9194 An Open-Label Extension Trial of UT-15C SR in Subjects with Pulmonary Arterial
                Hypertension
                (Sponsor: United Therapeutics)
              • IRB 9195 A16-Week, International, Multicenter, Double-Blind, Randomized, Placebo-Controlled
                Study of the Efficacy and Safety of Oral UT-15C Sustained Release Tablets in Subjects
                with Pulmonary Arterial Hypertension
                (Sponsor: United Therapeutics)
              • IRB 9208 An extension study of QTI571A2301 to evaluate the long-term safety, tolerability and
                efficacy of oral QTI571 (imatinib) in the treatment of severe pulmonary arterial
                hypertension: IMPRES Extension
                (Sponsor: Novartis Pharmaceuticals Corporation)
              • IRB 9210 Ventavis RESPIRE Registry
                (Sponsor: Actelion Pharmaceuticals U.S., Inc.)
              • IRB 9229 Investigation of a possible mineral etiology of Sarcoidosis
              • IRB 9239 A Randomized, Multicenter Study of First-Line Ambrisentan and Tadalafil Combination
                Therapy in Subjects with Pulmonary Arterial Hypertension
                (Sponsor: Gilead Sciences Inc.)