research depends on patient volunteers

There are currently 6,175 clinical trials registered with the National Institutes of Health (NIH) under the category of diabetes.  Roughly 4,890 are tied to device, drug or pharmaceutical industry research, completed and ongoing.  What we have left are studies related to behavioral science, education, alternative healthcare related to diabetes and studies which having failed, were terminated.

What follows is a list of ongoing diabetes research that deserves attention.    Many of these investigations will be familiar, others less so.  I tried to restrict the studies only to those that were active or recruiting, facilitated and run by a reliable sponsor or team, initiated at a Phase II level or better and planned or estimated on completing findings before 2014 (although this doesn’t mean publication ready). Two studies didn’t make that criteria for various reasons, but each are noted with an asterisk.  One included, the TEDDY study, will not complete until 2023, but it is such a large scale and important piece of research that it should not be left out.  This is not intended as a comprehensive list, but should give an idea of where we are today with diabetes research ambitions and aspirations.  (www.clinicaltrials.gov was used as the source.)

Effect of Metabolic Control at Onset of Diabetes on Progression of Type 1 Diabetes
Sponsor: NIH
Purpose:
To find out if very tight blood glucose control from the onset of Type 1 Diabetes can preserve beta cell function. Study subjects will be randomly assigned to receive either standard diabetes management or intensive diabetes management, which involves several days of closed loop therapy (artificial pancreas) followed by home use of a continuous glucose monitor and insulin pump.
Ages Eligible: 10-45
Primary Completion Date: May 2013
Study Completion Date: May 2015
Status: Recruiting

Integration of Continuous Glucose Monitoring Into a Bi-Hormonal Closed-Loop Artificial Pancreas for Automated Management Of Type 1 Diabetes (CL2)
Sponsors: Boston University, Massachusetts General Hospital, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), JDRF, the Helmsley Charitable Trust
Purpose:
The investigators hypothesize that our closed-loop glucose-control system (artificial pancreas) can provide Blood Glucose (BG) control in subjects with type 1 diabetes using the estimated Blood Glucose signal from a CGM as the input signal to the controller.
Eligible Ages: 12 +
Estimated Primary and Study Completion Date: July 2011
Status: Recruiting

*Parental Management of Young Children’s Diabetes (YCP)
Sponsor: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Purpose:
Recent findings indicate that responsibility for diabetes management falls heavily on mothers. The majority of families do not receive outside child care assistance and report feeling overwhelmed. Parents report high levels of pediatric parenting stress difficulty, as well as moderate symptoms of anxiety. The current study aims to expand such preliminary findings and specifically examine the effects of a newly-developed parenting support program for parents of young children with Type 1 diabetes. It is hypothesized that the children of participating parents will also demonstrate improved quality of life and metabolic control.
Primary Completion Date: November 2012
Study Completion Date: March 2013
Status: Recruiting

Simulated Diabetes Training for Resident Physicians (SDT)
Sponsor: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Purpose:
The objective of this translational research is to study the effect of implementing an innovative simulated diabetes learning intervention within primary care residency programs across the country (US). A prototype of the learning intervention, called SimCare, has demonstrated in a previous randomized trial to improve A1c levels and reduce risky prescribing events in actual patients of practicing physicians. The intervention uses cognitive behavioral learning theory to provide goal-directed feedback to physicians after every encounter over a series of virtual patient-physician encounters.  The online intervention is economical, sustainable, and addresses a number of current obstacles to outpatient diabetes training in primary care residency programs.
Primary Completion Date: February 2011
Study Completion Date: September 2011
Status:  Not Yet Open

PROCHYMAL® (Human Adult Stem Cells) for the Treatment of Recently Diagnosed Type 1 Diabetes Mellitus (T1DM)
Sponsor: Osiris Therapeutics, JDRF
Purpose:
The active ingredient in PROCHYMAL® is adult human mesenchymal stem cells (MSCs). MSCs have been shown to interact with the immune cells in the body, reducing inflammation and assisting in tissue repair. This study will help determine whether MSCs can protect normal pancreatic tissue from autoimmune attack and repair damaged pancreatic tissue, leading to an increase in insulin production and decrease in circulating blood glucose. The characteristics and biologic activity of PROCHYMAL®, along with a good safety profile in human trials to date, suggest that PROCHYMAL® may be a good candidate for addressing Type 1 Diabetes.
Estimated Primary Completion Date: December 2010
Status: Ongoing, not recruiting

TEDDY – The Environmental Determinants of Diabetes in the Young
Sponsor: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) National Institute of Allergy and Infectious Diseases (NIAID)
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
National Institute of Environmental Health Sciences (NIEHS)
Juvenile Diabetes Research Foundation
Centers for Disease Control and Prevention
Purpose:
The long-term goal of the TEDDY study is the identification of infectious agents, dietary factors, or other environmental agents, including psychosocial factors which trigger T1DM in genetically susceptible individuals or which protect against the disease. Identification of such factors will lead to a better understanding of disease pathogenesis and result in new strategies to prevent, delay or reverse T1DM.
Ages Eligible:  Up to 4 months
Estimated Study Completion Date: September 2023
Status: Recruiting

*OpT2mise Glucose Control in Type 2 Diabetes Mellitus (DM) With Insulin Pump Therapy
Sponsors: Medtronic
Purpose:
The purpose of this study is to evaluate the comparative effectiveness of insulin pump therapy versus multiple daily injections in insulin-taking type 2 Diabetes Mellitus who are sub optimally controlled with multiple daily injections (MDI).
Ages Eligible: 30-75 years
Estimated Primary Completion Date: December 2012
Estimated Study Completion Date: June 2013
Status:  Not yet open

Autologous Bone Marrow Mononuclear Cells Transplantation in Treating Diabetes Patients
Sponsor: Shandong University, China
Purpose:
The study evaluates the safety and efficiency of autologous bone marrow mononuclear cell transplantation in treating patients with type 1 or 2 Diabetes Mellitus. We hypothesize that autologous bone marrow stem cell transplantation will promote β-cells regeneration by directly differentiated from the transplanted BMMCs or stimulated local stem cells regeneration and thus decrease or eliminate the need of exogenous insulin and improve β-cells function.
Ages Eligible: 16 years to 65 years
Estimated Study Completion Date: March 2014
Status:  Recruiting

Please leave a comment if you would like to make an addition.

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Why blue?

I was surprised to read the poem my 10 year old daughter wrote for her first week back at school, but I was moved, rather than upset, to learn she worries enough about my low blood sugars to include in her work. Her writing is a compelling reminder that diabetes affects the entire family, not just the patient.

What also strikes me are the 10 year old aspirations and compassion for others.  How easy it is to forget what it’s like to have the world at your feet, and feel excited about it.

______________________________________________
I AM
by Olivia (with permission to publish)

I am curious and happy.
I wonder why the sky is blue.
I hear my mom typing on her computer.
I see myself curing injured animals.
I want to be a good student.
I am curious and happy.

I pretend to brush my hair in the morning.
I feel excited after going on space mountain.
I touch my computer’s keyboard to write emails.
I worry when my mom has a low blood sugar from diabetes.
I cry when I think of my grandma because she lives in Connecticut and I live in Hong Kong.
I am curious and happy.

I understand that if everyone works together everything will be easier.
I say that if you are confident you will accomplish good things.
I dream that I’m the world’s greatest horse rider.
I try my best to do well in school.
I hope I become good friends with everyone.
I am curious and happy.

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Sex: Women with Diabetes Less Likely to have a Partner than Women Without?

1 September 2010

Ouch.  That comment hurt.

But that’s what the researchers in a recent study, Sexuality Among Middle Age and Older Adults with Diagnosed and Undiagnosed Diabetes:  A National, Population-Based Study (Diabetes Care, August 27, 2010), found after conducting a self-reporting survey among 1,993 “community residing” adults.  The researchers concluded that even though many middle aged and older [...]

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Leaving My Summer’s Circadian Clock Behind

30 August 2010

Summer has disappeared. We left Asia in mid-July with so much enthusiasm for plans in the Northeastern US, and now, it’s hard to fathom how Labor Day could possibly be one week away.  Very soon, everyone will be mourning the end of summer, especially children who must return to those newly waxed floors in their [...]

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How does your HbA1c Stack Up?

30 August 2010

There is just no getting around it.  Daily BG testing and fine tuning are essential to achieving an actual healthy HbA1c value.  What’s more important than a HbA1C value is ultimately, what gets you there and how all those Blood Glucose (BG) values stack up, according to a leading diabetes health care practitioner.
Most patients would [...]

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Reprint of “The End of Blood Glucose Testing Pain – Closer to Reality?’ for my Mandarin readers

30 August 2010

新科技為無痛的血糖測試邁進一步

在確診糖尿病往後的36年中,我被問得最多的問題是:「你篤手指驗血糖時痛不痛?」
我已經回答過很多次「不痛,世上還有更糟的事情」。我不能肯定為什麼我不說實話。將一支針插入我的手指似乎很微不足道,因我已有一個危及性命的疾病,一個小針戳又算是甚麼?
但事實上,我是感覺到篤手指的痛,真的!感覺就像給蜜蜂叮或被火灼過。糖尿病人每天需要測試血糖至少4至6次,換言之很多病友會在一生內進行多達 10萬次的測試。對於許多病友,尤其是小孩子,每天在敏感的手指頭採血實在不是一個好經驗。部份病友,經過三十年來一直用手指採測試血糖,經過多年的流血和磨損,手指都已有厚繭。在糖尿病自我管理中,血糖測試是充滿誤解的。篤手指驗血使人厭煩、痛苦亦損害皮膚,但對於飲食、睡眠、運動,甚至駕車,血糖測試都是絕對必要的。事實上,對使用胰島素的糖尿病友,血糖測試更是生存的關鍵。
由於測試血糖是糖尿病護理最基本和痛苦的一部分,所以我很有興趣更深入了解香港的科學家運用光學原理(near-infrared NIR)的無創血糖機的臨床研究工作。自2004年以來,香港教育學院鍾慧儀教授和香港理工大學汪國成教授已開始研究光學原理(NIR)技術。他們作了七次臨床研究,在超過 800個病人身上都有成功的結果,目前正在作第八次的臨床研究。無創血糖機的優點包括無針及無痛的測試系統,消除了感染的可能性和血糖試紙的高成本,還能令數百萬患者更為無懼和更主動地測試血糖。
痛楚的問題
我在位於大埔的香港教育學院訪問了鍾慧儀教授。在她開始學術研究生涯前,鍾教授多年來一直在香港的醫院及寧養中心照顧深切治療病房內的病人當中包括癌症患者和糖尿病人。她從而對疼痛處理這個問題特別感興趣,亦成為她博士學位的研究專題。鍾教授在進行無創血糖機的研究工作的同時亦管理一所疼痛治療門診。她的早期工作中,鍾教授可觀察到-疼痛是很多患上不同疾病均要面對的,但為什麼她選擇把重點放在糖尿病友的疼痛,我對她這個選擇不禁有點感到迷茫。
「針刺的痛楚相比神經病變或癌症疼痛是非常小的,但不同之處是糖尿病友需要每天都檢測血糖,沒有其他折衷辦法。疼痛和痛苦是不可能分開的。汪教授、我及其他的研究員均想為減輕糖尿病護理的痛苦做一些貢獻。開始的時候,這只是一個夢想。”」鍾教授和研究隊決定開始研究無創技術,前往不同國家評估目前的研究,參考其他科學家在外地的研究和分析其他技術,如Glucowatch。然後,他們開始逐步實現自己的夢想。
光學原理

什麼是光學技術?光學技術是採用不同波長的光來檢測血糖值,傳統的動物實驗中亦有使這種技術用來作血糖測量,但這些實驗性質的方法使用在人體身上便太危險了。由於專利權的關係,我不便描述細節,但簡單來說,鍾教授的研究模型採用近紅外光譜技術,通過光譜儀的光源(用一個較低而又安全的光級),通用一個微小的感應器(大小約一角硬幣的四份一),患者可於耳垂、前臂或手指尖(給篤手指的病人一個小提示:食指和中指用來測血糖是最準確)檢測自己的血糖水平。目前,研究小組已能準確地測量4.2 mmol / L至8 mmol / L的血糖度數。8至12 mmol / L的血糖度數的準確度雖可接受,但較不穩定。雖然某些公司希望產品盡快完成研究,但由於病友都非常關注儀器能否準確檢測低血糖,所以該產品還未推出市場。藥廠或其他學術中心有沒有聯絡研究小組? 「有,我們正在計劃下一步該如何。」為什麼研究對低血糖讀數有困難?鍾教授向我說明原因是沒有較低血糖的參考數據,因為在過往800名研究對象中,只有極少數的病友患有低血糖的情況。換言之,香港一型糖尿病友患人口太小,未能為鍾教授的研究提供足夠的研究對象。至今已進行了的七項研究的研究對象全是二型糖尿病友或沒有糖尿病的人士。研究需要更多一型病友,為此鍾教授會將研究拓展到香港以外的地方。 (香港人口是700萬,二型病友估計為佔總體人口10%; 一型病友估計佔總體人口 0.0002%)。
唯一獲得美國食品和藥物管理局(FDA)批准的無創血糖儀是在2001年推出的Glucowatch,但該產品已於 2007年被停產。 Glucowatch發出微小的電脈將血糖帶到皮膚表面,然後用手錶感應器來檢測血糖水平。但它有機會引起皮膚過敏及皮膚疹,準確性亦有待改善。今年年初美國科學雜誌 Scientific American 講述關於美國麻省的Echo Therapeutics醫療儀器公司亦正在研究一種無線、無針的皮下連續性血糖監測系統,稱為 Symphony tCGM。跟Glucowatch一樣,Symphony tCGM會發出微小電脈到皮膚,用感應器可以檢測血糖透過毛細血管的擴散,而血糖讀數就會被發送到無線手持儀器。我問鍾教授對 Symphony tCGM 的看法,“初步的模型已有令人鼓舞的結果,但也有一些問題。我們需進一步探討感應器的耐用性、準確性、皮下血糖變化(和時間差別)和長期的影響。”
紅外光無創血糖機的未來
紅外光無創血糖機的未來發展在於利用無線技術和遠距醫療系統。具體實行方法如下:感應器將血糖測試數據從用無線的方式發送到中央處理器,並在幾秒鐘內用短信通訊傳送到病人。以這方式,醫生和護士可以下載數據記錄,媲美現有的連續式血糖偵察機(CGM) ,但無需使用皮下感應器。目前最大的挑戰是該儀器的體積仍然過大及價錢太昂貴。隨著有更多的一型病友作研究對象,鍾教授祈望將能縮短紅外光的光波長度,儀器體積可以縮細,更符合成本效益。 「我們可能在 2-3年內可以做到。我們已經完成了三分之二的工作。我們的研究正持續地在進行,我們一定可達到夢想。」
信心是一個很重要的原素。我相信所有的糖尿病友都渴望的無痛血糖測試夢想能成真。而有了光學技術,夢想就越來越近。

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Coming Home: Li-Lo, Advertising and Lotsa Fat

23 July 2010

Other than suffering from extreme jet lag since we traveled from Asia to the USA this week, I have been under and overwhelmed by so many things all-American here in the North-east: the bad – the number of SUVs still in existence on American highways and the good – the smell of freshly cut grass [...]

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Opinion: Avandia Case Makes it Clear – Public Trust is Legitimately Eroded

15 July 2010

Read my latest post published here

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News Round-up: 30 Day Insulin Shot, Avandia Debate, Sotomayor Memoir and more

14 July 2010

India Hails Diabetes Breakthrough – One Insulin Shot to Last 30 Days
(AFP) Researchers at the National Institute of Immunology in New Delhi have successfully completed a two year trial on mice, rats and rabbits for a drug which slowly releases insulin into the body over weeks or months, reporting that the drug SIA-II “was able [...]

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“Do More, Feel Better, Live Longer” – but don’t take Avandia

13 July 2010

Today (13 July 2010), Gardiner Harris of the New York Times published the first investigative piece I have seen on Avandia, Diabetes Drug Maker Hid Test data on Risks, Files Indicate.  Avandia (indicated for patients with type 2 diabetes) was once of the biggest-selling drugs in the world with sales at $3.2 billion in 2006 until [...]

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