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CompletedNCT00216294Updated Feb 23, 2024

Safety Study of the Drug RG1068 in Patients With Obsessive Compulsive Disorder

A Phase 2 interventional study of RG1068 (Synthetic Human Secretin) in Obsessive Compulsive Disorder (OCD), sponsored by Indiana University School of Medicine. Completed at 1 site in United States. Open to participants aged 18 Years to 40 Years. Per ClinicalTrials.gov, last updated 2024-02-23.

Sponsored by Indiana University School of Medicine · Phase 2, Interventional, and Other

Phase
Phase 2
Study type
Interventional
Enrollment
12
Allocation
Non-randomized
Ages
18 Years to 40 Years
Sex
All
01

Study summary

The purpose of this study is to determine the safety and tolerability of RG1068 (Synthetic Human Secretin) when administered three times weekly to outpatients with obsessive compulsive disorder (OCD), to determine the impact of multiple subcutaneous injections of RG1068 on the symptoms of OCD, as measured by changes in clinical scales, and to evaluate the effect of RG1068 on OCD patients' anxiety, quality of life, and depression.

Read the detailed description

This is an open-label, dose-escalation pilot study. Prospective participants will initially undergo a blinded placebo challenge to assess his or her ability to self-administer drug. A total of sixteen subjects, will be enrolled in one of two study arms (eight subjects per group), depending on whether or not they are receiving concurrent treatment with a Selective Serotonin Reuptake Inhibitor (SSRI). The first 8 patients enrolled will receive subcutaneous injections of RG1068 at 10 µg/kg and will be divided between those receiving SSRI's and those not receiving SSRI's. Those not receiving SSRI treatment will further be divided between newly diagnosed, SSRI-naïve patients and patients who received SSRI's in the past but who have discontinued treatment for at least twelve weeks prior to enrollment. If there are no drug-related serious adverse events, an additional eight patients will be enrolled and receive RG1068 at 20 µg/kg. This group will also be divided between those receiving SSRI's and those not receiving SSRI's. Those not receiving SSRI treatment will be further divided in the same manner as before; newly diagnosed, SSRI-naïve patients, and patients who received SSRI's in the past but who have discontinued treatment for at least twelve weeks prior to enrollment.

02

Conditions studied

  • Obsessive Compulsive Disorder (OCD)

Keywords

  • Obsessive Compulsive Disorder
  • RG 1068 (Synthetic Human Secretin)
03

In context

Obsessive-Compulsive Disorder

635 studies on the registry are indexed under Obsessive-Compulsive Disorder; 166 are open to participants now.

This study's enrollment of 12 is below the median of 45 across 520 interventional studies indexed under Obsessive-Compulsive Disorder.

Browse Obsessive-Compulsive Disorder studies →

Lead sponsor

Indiana University School of Medicine is the lead sponsor of 89 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 40 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. outpatients with a primary diagnosis of OCD
  2. age 18-40 years, inclusive
  3. moderate to severe symptoms of OCD: a) YBOCS score of ≥24; b) CGI-Severity ≥4; c) significant disruption of daily activities (≥2 on item 1 or 6 of the YBOCS); d) disruption of employment/education function (≥2 on item 2 or 7 of the YBOCS)
  4. if not on SSRI, must: a) have discontinued treatment with an SSRI at least 12 weeks prior to study Day 1; b) or be treatment naïve.
  5. if on SSRI: a) must have residual symptoms despite a three month trial of an adequate dose of an SSRI drug; b) must currently be on an SSRI for at least 16 weeks and on a stable regimen for at least 8 weeks prior to Day 1.
  6. Competent to give .

Exclusion criteria

Exclusion Criteria:

  1. moderate to severe depression (MADRS >25)
  2. significant risk of suicidal behavior at screening
  3. surgical lesion of anterior capsule (capsulotomy) or cingulate gyrus (cingulotomy)
  4. co-morbid tics, Tourette syndrome, schizo-obsessive disorder, pure obsessive disorder or Axis II disorder
  5. first degree relative with Tourette syndrome
  6. pediatric neuropsychiatric disorders associated with streptococcal infections (PANDAS)
  7. current cognitive behavioral psychotherapy
  8. history of sensitivity to any of the ingredients in the study drug
  9. abnormality in any screening laboratory results
  10. Clinically significant organic disease (other than OCD), including cardiovascular, hepatic, pulmonary, neurologic, or renal disease, or other medical condition, serious intercurrent illness, or extenuating circumstances that, in the opinion of the Investigator, would interfere with the performance or interpretability of, or put the patient at risk from, the study procedures
  11. a current, active or ongoing Axis I psychiatric disorder other than anxiety disorders, major depression, dysthymia, and depression not otherwise specified (but including organic mental syndromes or disorders and dementia) as long as these are secondary diagnoses.
  12. women who are pregnant, breastfeeding, or refuse to use adequate
  13. diagnosis of alcohol or substance abuse and/or dependence in the past 6 months
  14. participating in an drug study within 28 days of Day 1
  15. concomitantly using any psychotropic medication other than SSRI or chloral hydrate for sleep
  16. receiving treatment with a monoamine oxidase inhibitor within 2 weeks, a depot neuroleptic within 6 months, or a neuroleptic, anxiolytic, or antidepressant on a daily basis in the 2 weeks prior to Day 1.
Terms in these criteria, in plain language(6)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

DSM diagnostic criteria

The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Phase 2
Primary purpose
Other
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
12 participants (actual)

Study arms

  • Experimental
    Currently treated with SSRI

    Drug: RG1068 (Synthetic Human Secretin)

  • Experimental
    Not currently treated with SSRI

    Drug: RG1068 (Synthetic Human Secretin)

06

What researchers measure

Primary outcomes

  1. Change in Yale-Brown Obsessive Compulsive Scale and

  2. Clinical Global Impression of Change Scale

Secondary outcomes

  1. Change in Hamilton Anxiety Scale,

  2. Montgomery-Asberg Depressing Rating Scale, and

  3. the Sickness Impact Profile

07

Study locations

1 site
  • LaRue Carter Hospital
    Indianapolis, Indiana 46222, United States
08

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Feb 2005, a primary completion of Apr 2006 and a completion of Apr 2006. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 13, 2005
First posted
Sep 22, 2005
Start
Feb 2005
Primary completionActual
Apr 2006
CompletionActual
Apr 2006
Last update
Feb 23, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 23, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00216294
Lead sponsor
Indiana University School of Medicine
Collaborators
Shekhar, Anantha M.D., Ph.D., Repligen Corporation
First posted
Sep 22, 2005
Start date
Feb 2005
Primary completion
Apr 2006
Completion
Apr 2006
Last update
Feb 23, 2024

Study contacts

Anantha Shekhar, MD, PhD
principal investigator · Indiana University School of Medicine
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2024. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Secretin human

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