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Pituitary AdenomaPhase 4NCT01371643

Surgical Debulking of Pituitary Adenomas

A Phase 4 study testing Octreotide LAR and transsphenoidal surgery in people with Pituitary Adenoma, run by NYU Langone Health at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a randomized, multicenter trial with stratification done by a single radiologist at the coordinating center (NYU), and patients with comparable disease will be randomized to Sandostatin LAR treatment administered 1 time per month by IM injection for 3 months before (Arm A) or, for non-cured patients, after… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Pituitary Adenoma
What is being tested?
Octreotide LAR and transsphenoidal surgery
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
41 participants
Where
1 siteUnited States
Study dates
Apr 2004to Dec 2011
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Carry a diagnosis of de novo acromegaly with an elevated age and sex matched IGF-I and GH >1ng/ml at all time points during OGTT
  • Have a pituitary macroadenoma
  • Have clinical changes consistent with acromegaly
  • Have a single random serum hGH of 12.5 ng/ml or greater
  • Both the endocrinologist and surgeon must agree that the patient's health would not be compromised by a three-month period during which time Octreotide LAR is administered.
  • Patients currently on dopamine agonist who agree to discontinue medication (2-6 week washout required)

Who cannot join

  • Pregnant or breastfeeding
  • Documented loss of vision due to pituitary tumor
  • Prior treatment for acromegaly other than dopamine agonists
  • Inability to complete the protocol
  • Intolerance to octreotide

Trial locations and contacts

1 site in 1 country.

United States1 site
  • New York University School of Medicine

    New York, New York, 10016

Other trials in United States

About this study

Official title: Does Surgical Debulking Of Pituitary Adenomas Improve Responsiveness To Octreotide LAR In The Treatment Of Acromegaly: An Investigator-Initiated Study

This is a randomized, multicenter trial with stratification done by a single radiologist at the coordinating center (NYU), and patients with comparable disease will be randomized to Sandostatin LAR treatment administered 1 time per month by IM injection for 3 months before (Arm A) or, for non-cured patients, after (Arm B) surgery. All patients will undergo transsphenoidal hypophysectomy. The impact of surgical debulking on responsiveness to Sandostatin LAR will be evaluated.The primary objective of this trial will be to determine whether surgery (debulking of pituitary adenomas) improves the response of patients with acromegaly to treatment with Octreotide LAR, when compared to Octreotide LAR therapy alone.

Read the detailed description

The current goal of treatment for people with acromegaly is normalization of both growth hormone (GH) and insulin-like-growth-factor-1 (IGF-1) levels. Normalization of GH and IGF-1 levels attenuates the morbidity (hypertension, cardiovascular disease, sleep apnea, increased cancer risk, arthritis) and increased mortality associated with persistent GH and IGF-1 elevation. The optimal approach to achieving these goals in patients with pituitary macroadenomas remains controversial. Available treatment modalities include transsphenoidal hypophysectomy, medical therapy (somatostatin analogues and/or dopaminergic agonists), radiotherapy, or a combination or these interventions. No randomized trials have been conducted to investigate whether surgical debulking of pituitary macroadenomas enhances the efficacy of medical therapy. This study is designed to rigorously investigate whether surgical debulking increases the efficacy of a long-acting depot somatostatin preparation, Sandostatin LAR, so that evidence-based optimal care may be offered to patients with acromegaly.

Being tested
Octreotide LAR, transsphenoidal surgery
Medical subject headings
Pituitary Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Octreotide LARDrug

  • transsphenoidal surgeryProcedure or surgery

Study groups in NCT01371643
Study groupRoleWhat they receive
Medical treatment by Octreotide LARActive comparatorMedical therapy with Octreotide LAR 30 mg/month for 3 months preceding surgery
Receives: Drug: Octreotide LAR
Surgical debulking followed by Octreotide LARActive comparatorSurgical debulking of pituitary tumor followed by Octreotide LAR if not surgically cured
Receives: Drug: Octreotide LAR; Procedure: transsphenoidal surgery

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percentage of Responders (Primary Medical Treatment in Arm 1, Primary Surgical Treatment in Arm 2)

    Nadir growth hormone <1 ng/mL during a standard 2 hour oral glucose tolerance test using 75 g glucose and normal IGF-I according to age and gender-matched standards.

    Measured: 3 months

  2. Percentage of Responders (All Treatments)

    Nadir growth hormone <1 ng/mL during a standard 2 hour oral glucose tolerance test using 75 g glucose and normal IGF-I according to age and gender-matched standards.

    Measured: 3 months

Secondary outcomes (1)
  1. Percentage of Responders (Only Including Surgical Failures in Arm 2)

    Nadir growth hormone <1 ng/mL during a standard 2 hour oral glucose tolerance test using 75 g glucose and normal IGF-I according to age and gender-matched standards.

    Measured: 3 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Jun 2011 (estimated)
  2. Study startApr 2004
  3. Primary completionJul 2010
  4. Study completionDec 2011

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
41 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01371643
Sponsor's protocol ID
R11104
Status last verified
Jul 2016
First submitted
9 Jun 2011
Last updated
29 Aug 2016

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Octreotide LAR and transsphenoidal surgery in people with Pituitary Adenoma, run by NYU Langone Health at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 29 Aug 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 22 Jul 2016). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Percentage of Responders (Primary Medical Treatment in Arm 1, Primary Surgical Treatment in Arm 2) (time frame: 3 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Aug 2016.

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