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<<   作成日時 : 2008/08/25 20:21   >>

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 ニューアークの連邦判事は、デュシェンヌ型筋ジストロフィー末期の16歳の患者は、薬の開発者から反対にもかかわらず実験的な薬物療法を使うことを許されるべきであると水曜日にPTC Therapeutics社に対して判決命令を出した。
 安全についての懸念と研究の妥当性を導くために、どういった患者が、これらの試験に参加することができるかについて、薬開発者は厳しい条件を付けている。しかし、裁判官は、基準を満たしていなくても、患者が、実験的な薬剤を使うことを許されるべきであるとした。
 病状が既に進行してしまっていることが問題のようである。
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アンチセンス筋ジストロフィー治療薬の人への最初の治療
http://kurie.at.webry.info/200712/article_47.html
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Judge Orders Drug Maker to Provide Experimental Treatment to Terminally Ill Teenager
http://www.nytimes.com/2008/08/21/business/21dystrophy.html
By MICHAEL M. GRYNBAUM
Published: August 20, 2008

A 16-year-old patient, terminally ill with a rare form of muscular dystrophy, should be allowed to use an experimental drug treatment despite objections from the drug’s developer, a federal judge in Newark ruled on Wednesday.

The case, which touches on major ethical issues, is being closely watched by the pharmaceutical industry.

Under the ruling, Jacob Gunvalson, of Gonvick, Minn., would be able to start taking a drug intended to treat Duchenne muscular dystrophy, a rare and fatal disease that strikes boys and young men. The developer, PTC Therapeutics of South Plainfield, N.J., contends that Jacob does not meet the criteria to be a part of the drug’s clinical trial, and is planning to appeal. Federal regulators must also approve his application to use the drug.

It was not immediately clear what implications the ruling would have for other patients seeking access to clinical trials of experimental treatments. Drug developers tightly enforce parameters on who can participate in these trials, citing concerns about safety and the validity of the research.

Those who do not meet the guidelines are excluded, often because their cases might alter the results, even if the patients consider the trial a final hope in the face of a devastating illness.

In Wednesday’s ruling, Judge William J. Martini, of the United States District Court in Newark, said that Jacob should be allowed to take the experimental drug even though he does not meet the criteria for eligibility. The details of the order were still being hammered out late Wednesday.

“We’re very pleased with what has happened,” said Marc E. Wolin, a lawyer for the Gunvalson family. “This was the relief that we sought. It’s a big step in the right direction.”

But the chief executive of PTC Therapeutics, Stuart W. Peltz, said he was concerned the decision could encourage patients to sue to gain access to clinical trials.

“To have the courts decide who gets the drug, it’s something we should all be concerned about,” Mr. Peltz said. “It’s not the way clinical trials should be thought of, in our opinion.”

The Gunvalsons’ lawsuit was not intended as a challenge to widespread practices at drug companies. Its circumstances were unique, complicated by allegations of deception by Cheri Gunvalson, Jacob’s mother.

In the suit, Ms. Gunvalson said that officials at PTC Therapeutics led her to believe that her son would be allowed to take part in a clinical trial, only to ultimately say his disease had advanced to a point where Jacob no longer met the proper criteria for the study.

She said she helped the company obtain federal grants to research the disease, and that the company discouraged her from enrolling Jacob in an earlier study with the understanding that he would be allowed to take the drug in a later trial.

PTC Therapeutics denied those claims.

“The company made a variety of promises to Cheri about access of the drug,” said Michael A. Hatch, a former attorney general of Minnesota, who represented the Gunvalson family. “We’re here only to try to help Jacob get access to something that was promised to him,” he said.

While drug developers occasionally allow exceptions for patients who do not meet a study’s criteria, some companies fear overuse of this process could discourage patients from volunteering for trials, where many participants receive placebo pills.

“We understand the pressure and the needs of the community, but we have to do it in a way that collects information in a safe, effective and fair way,” said Mr. Peltz.

But Mr. Hatch said that the drug company’s decision to appeal Wednesday’s ruling was misguided. “They’re worried about a floodgate,” he said. “This is not a floodgate case. The situation involving Jacob is extraordinarily unique, concerning the patients and the company.”

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2007年10月11日 Biotoday
遺伝子転写後制御プロセスを標的にした低分子薬の探索・開発を手がける生物製薬会社・ PTC Therapeutics社は、ジストロフィン遺伝子にノンセンス変異(ナンセンス変異)を有するデュシェンヌ型筋ジストロフィー(DMD)の男児を対象にしたPTC124の第2相試験の薬物動態と安全性データを発表した。

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