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SRT501: Clinical Trial for SRT501


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#1 maxwatt

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Posted 15 September 2009 - 11:20 AM


CLINICAL TRIAL

Phase 1 tudy: This is listed under SRT501 rather than under resveratrol. In past studies Sirtris has given the dose resveratrol in SRT501, rather than SRT501 plus vehicle. The dose is 5 grams, for a two week period, 10 SRT501 subjects plus5 placebo controls. Estimated study completion date December 2009.



A Clinical Study to Assess the Safety, Pharmacokinetics, and Pharmacodynamics of SRT501 in Subjects With Colorectal Cancer and Hepatic Metastases
This study is currently recruiting participants.
Verified by GlaxoSmithKline, June 2009
First Received: June 12, 2009 No Changes Posted
Sponsored by: GlaxoSmithKline
Information provided by: GlaxoSmithKline
ClinicalTrials.gov Identifier: NCT00920803
Purpose
The primary purpose of this study is to determine the safety and tolerability of SRT501 (5.0 g) in subjects with colorectal cancer and hepatic metastases when administered once daily for 14 days.

The purpose is to also characterize the pharmacokinetic profile of SRT501 (5.0 g) by assessing levels of SRT501 and metabolites in blood, urine, bile and normal and malignant metastatic tissues in subjects with colorectal cancer and hepatic metastases when administered once daily for 14 days.

The secondary purpose is to examine the pharmacodynamics of SRT501 activity in both normal and malignant tissue samples, including blood and/or bodily fluids.


Condition Intervention Phase
Colorectal Cancer
Drug: SRT501
Drug: Placebo
Phase I

Study Type: Interventional
Study Design: Basic Science, Randomized, Double Blind (Subject, Caregiver, Investigator), Parallel Assignment, Pharmacokinetics/Dynamics Study
Official Title: A Phase 1, Double-Blind, Randomized Clinical Study to Assess the Safety, Pharmacokinetics, and Pharmacodynamics of SRT501 in Subjects With Colorectal Cancer and Hepatic Metastases

Resource links provided by NLM:

MedlinePlus related topics: Cancer Colorectal Cancer
Drug Information available for: Resveratrol
U.S. FDA Resources

Further study details as provided by GlaxoSmithKline:

Primary Outcome Measures:
To characterize the pharmacokinetic profile of SRT501 in blood and normal and malignant metastatic tissues when administered once daily for 14 days. [ Time Frame: Pharmacokinetic samples will be obtained on Days 1, 2, 14, and 15. ] [ Designated as safety issue: No ]
To determine the safety and tolerability of SRT501 when administered once daily for 14 days. [ Time Frame: Safety will be continually assessed while subjects are on study. ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
To examine the pharmacodynamics of SRT501 activity in both normal and malignant tissue samples and blood. [ Time Frame: Pharmacodynamic samples will be collected on Days 14 and 15 and will be analyzed at the end of the study. ] [ Designated as safety issue: No ]

Estimated Enrollment: 15
Study Start Date: August 2008
Estimated Study Completion Date: December 2009
Estimated Primary Completion Date: December 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
5g SRT501: Active Comparator
5.0 g of SRT501 will be administered once daily as an oral reconstituted powder, for 14 days at the same time each day. On Days 1 and 2, SRT501 will be administered approximately 15-30 minutes following the consumption of a standardized breakfast. On all other days, SRT501 will be administered approximately 15-30 minutes following the consumption of the evening meal. Following the course of SRT501 administration, subjects will undergo scheduled surgical removal of their metastatic liver disease as well as non-diseased tissue. Due to scheduling and surgical availability, subjects can receive SRT501 for a minimum of 10 days and a maximum of 21 days.
Drug: SRT501
SRT501 will be supplied in clinical kits as a powder which will be reconstituted with vehicle and water into a liquid suspension. The final drug product must be used immediately following mixing. SRT501 will be administered orally, once daily for 14 days.
Placebo: Placebo Comparator
Placebo will be administered once daily as an oral reconstituted powder, for 14 days at the same time each day.

On Days 1 and 2, placebo will be administered approximately 15-30 minutes following the consumption of a standardized breakfast to allow for PK sample collection. On all other days, placebo will be administered approximately 15-30 minutes following the consumption of the evening meal. Following the course of placebo administration, subjects will undergo scheduled surgical removal of their metastatic liver disease as well as non-diseased tissue. Due to scheduling and surgical availability, subjects can receive placebo for a minimum of 10 days and a maximum of 21 days.

Drug: Placebo
Placebo will be supplied in clinical kits as a powder which will be reconstituted with vehicle and water into a liquid suspension. Placebo must be used immediately following mixing. Placebo will be administered orally, once daily for 14 days.

Detailed Description:
This is a randomized, double-blind, placebo-controlled, inpatient/outpatient study to assess the safety, pharmacokinetics, and pharmacodynamics of SRT501 in subjects diagnosed with colorectal cancer and hepatic metastases. Fifteen subjects aged 18 years of age and older who fulfill the inclusion/exclusion criteria, will be enrolled in this study. Ten subjects, if eligible, will be randomized to receive SRT501 and 5 subjects, if eligible, will be randomized to receive placebo. Subjects will sign the informed consent form prior to any study-related procedures. If eligible, subjects will consent to receive 5.0 g of SRT501 or placebo, to be administered once daily as an oral reconstituted powder, for 14 days at the same time each day. On Days 1 and 2, SRT501 or placebo will be administered approximately 15-30 minutes following the consumption of a standardized breakfast to allow for PK sample collection. On all other days, SRT501 or placebo will be administered approximately 15-30 minutes following the consumption of the evening meal. Following the course of SRT501 or placebo administration, subjects will undergo scheduled surgical removal of their metastatic liver disease as well as non-diseased tissue and these samples will be evaluated for SRT501 concentrations and pharmacodynamic markers of neoplastic activity (such as cell differentiation, apoptosis, proliferation, etc.). Due to scheduling and surgical availability, subjects can receive SRT501 or placebo for a minimum of 10 days and a maximum of 21 days. If diseased colon tissue is also scheduled to be removed during resection, both diseased and normal colon tissue will also be collected for analysis. Participants will be required to return to the study center on Day 2 for a 24-hour PK sample and the evening prior to their scheduled surgical resection as well as per the Institution's standards of care for recovery following the surgical procedure. . . .


Edited by maxwatt, 15 September 2009 - 11:21 AM.


#2 drmz

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Posted 15 September 2009 - 12:10 PM

amazing, a study with a population of 15 :)

Edited by drmz, 15 September 2009 - 12:11 PM.


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#3 maxwatt

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Posted 15 September 2009 - 01:01 PM

amazing, a study with a population of 15 :)


The stated study goals are to determine safety, tolerance and pharmokinetics in both normal and diseased tissue. It's not really being evaluated as a treatment; I expect a Phase 2 trial would follow a larger population for a longer period of time. However, it seems to be the only such study on the horizon for GSK's Sirtris acquisition.

#4 2tender

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Posted 15 September 2009 - 02:28 PM

Great study, Im hoping it did prolong the lives of those that received the drug. After using Resveratrol with good affect, I cant imagine it didnt do something positive.5 grams is a high dose, but 2 weeks is a short period of time, I wonder how many subjects wanted to continue taking it, and or did via current resources.

#5 malbecman

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Posted 15 September 2009 - 05:21 PM

Interesting that they chose to have the participants administer the SRT501 after a meal and, also, mostly after the EVENING meal. I guess they are not looking to maximize peak blood levels nor are they interested in any differences in circadian rhythmn.

"On Days 1 and 2, SRT501 will be administered approximately 15-30 minutes following the consumption of a standardized breakfast. On all other days, SRT501 will be administered approximately 15-30 minutes following the consumption of the evening meal."

#6 unglued

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Posted 15 September 2009 - 10:04 PM

amazing, a study with a population of 15 :)


Yeah, we have more than 15 people reporting their results on this forum.

Now all we have to do is convince everybody here (1) to switch to a product that may be resveratrol or may be a placebo, and later we'll tell them which one they bought, and (2) to agree to have pieces of their livers and other tissues removed and ground up so we can find out if the resveratrol is reaching those tissues.

#7 opendoor

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Posted 15 September 2009 - 11:55 PM

I expect a Phase 2 trial would follow a larger population for a longer period of time. However, it seems to be the only such study on the horizon for GSK's Sirtris acquisition.


5g of SRT501 has 2-3g of resveratrol, right?

Looking at the timeline at Sirtris' website, it looks like a similar trial might be about to be started with SRT2401. That would fall under "diseases of aging" trials. Alzheimer's and Parkinsons would be in there, but I don't see why cancer wouldnt be.

A December deadline is consistent with what 60 Minutes reported with respect to early results in September, and that coincides with the Longevity meeting on Sep 23rd where many speakers like Sinclair and Westphal are with Sirtris.
I'd expect that they present something on the colon cancer trial and on SRT2401.


http://www.sirtrisph...m/pipeline.html

Edited by opendoor, 15 September 2009 - 11:56 PM.


#8 opendoor

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Posted 17 September 2009 - 01:19 AM

Dr. Sinclair: “I think the highlight of the Aging & Health Lifespan Conference will be the examination of how this research can have a life-changing effect on our aging population in the very near term.”

That's a strong statement, so it looks like good results of SRT501 and maybe SRT2041 will be presented next week.

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#9 opendoor

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Posted 25 September 2009 - 11:35 PM

amazing, a study with a population of 15 :)


I expect a Phase 2 trial would follow a larger population for a longer period of time. However, it seems to be the only such study on the horizon for GSK's Sirtris acquisition.


I just saw that their website says the "onconoloy" is in phase IIa




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