|Home | About | Journals | Submit | Contact Us | Français|
Cystic fibrosis (CF) is one of the most commonly tested autosomal recessive disorders in the US. Clinical CF is associated with mutations in the CFTR gene, of which the most common mutation among Caucasians, ΔF508, was identified in 1989. The University of Michigan, Johns Hopkins University, and the Hospital for Sick Children, where much of the initial research occurred, hold key patents for CF genetic sequences, mutations and methods for detecting them. Several patents including the one that covers detection of the ΔF508 mutation are jointly held by the University of Michigan and the Hospital for Sick Children in Toronto, with Michigan administering patent licensing in the US. The University of Michigan broadly licenses the ΔF508 patent for genetic testing with over 60 providers of genetic testing to date. Genetic testing is now used in newborn screening, diagnosis, and reproductive decisions. Interviews with key researchers and intellectual property managers, a survey of laboratories’ prices for CF genetic testing, a review of literature on CF tests’ cost effectiveness, and a review of the developing market for CF testing provide no evidence that patents have significantly hindered access to genetic tests for CF or prevented financially cost-effective screening. Current licensing practices for cystic fibrosis (CF) genetic testing appear to facilitate both academic research and commercial testing. More than one thousand different CFTR mutations have been identified, and research continues to determine their clinical significance. Patents have been nonexclusively licensed for diagnostic use, and have been variably licensed for gene transfer and other therapeutic applications. The Cystic Fibrosis Foundation has been engaged in licensing decisions, making CF a model of collaborative and cooperative patenting and licensing practice.
Approximately 30,000 Americans have cystic fibrosis (CF). It is the most common severe recessive genetic disorder among Caucasians.1 The disease is caused by mutations in the CFTR gene, which encodes a transmembrane chloride ion channel. One mutation, ΔF508, causes approximately 70% of CF cases (~50% of CF patients are homozygous for this mutation) in Caucasian populations. Other mutations are far rarer. Mutation and carrier rates vary by ethnicity. CFTR mutations lead to excessively thick and sticky mucus and, as a result, to frequent infections in the lungs. Approximately 90% of CF patients die from obstructive lung disease.2, 3 As of 2006, half of all CF patients were expected to survive to 36.9 years of age.4
Presently there is no cure for CF. Therapies to treat the disease’s symptoms include movement and clearing of mucus in the lungs, antibiotic treatment of infections, and diet and pancreatic enzyme replacement to improve nutrition.5 Lung transplants are an option for adult and pediatric patients, although the procedure’s utility for children is unclear.6, 7 Early detection through newborn screening can reduce CF deaths and alert parents and doctors to the need for disease management.8 Carrier screening also has implications for reproductive decisions. Hence, the American College of Medical Genetics (ACMG) endorses carrier screening based on testing for CFTR mutations and newborn screening that uses DNA testing if high levels of the enzyme immunoreactive trypsinogen (IRT) are detected.9, 10
CF was chosen as a case study specifically because non-exclusive licensing practices for the gene and its mutations allow for a rough comparison to other genes that are exclusively licensed. The University of Michigan, The Hospital for Sick Children in Toronto (HSC), and Johns Hopkins University (JHU) hold patents covering CFTR mutations and methods for detecting them. The University of Michigan’s patent portfolio includes the important ΔF508 mutation. Currently, 63 labs in the United States test the CFTR gene.11 This is possible in part because the University of Michigan, HSC, and JHU license their respective patents non-exclusively.
A survey of laboratories’ prices for CF genetic testing, a review of literature on CF tests’ cost effectiveness, and the developing market for testing for CF provide no evidence that patents have significantly hindered access to genetic tests for CF or prevented financially cost-effective screening. Current licensing practices appear to facilitate both academic research and commercialization of products.
Approximately 30,000 Americans have cystic fibrosis (CF), making it the most common severe recessive genetic disorder among Caucasians.1 Carrier rates vary by ethnicity. According to the American College of Obstetricians and Gynecologists:
The cystic fibrosis transmembrane conductance regulator (CFTR) gene encodes a transmembrane chloride ion channel, mutations of which result in defective movements of materials through membranes and excessively thick and sticky mucus throughout the body. CF affects multiple bodily functions including breathing, digestion, and reproduction. Symptoms include chronic pulmonary disease, pancreatic exocrine insufficiency, reproductive disorders, and elevated sweat chloride levels. Because CF patients cannot adequately clear their airways of the mucus build-up associated with CF, they wheeze, cough, and suffer from repeated lung infections and other pulmonary pathologies. Approximately 90% of CF patients die because of obstructive lung disease. The thick, sticky mucus found in CF patients also accumulates in the pancreas, thus preventing digestive enzymes from reaching the small intestine and leading to poor digestion, retarded growth, and persistent diarrhea.1, 11 “Almost all males with CF are infertile due to congenital malformation of the reproductive tract” (p. 5121).2
According to a consensus panel convened by the Cystic Fibrosis Foundation, “the diagnosis of CF should be based on the presence of one or more characteristic phenotypic features, a history of CF in a sibling, or a positive newborn screening test result plus laboratory evidence of a CFTR abnormality as documented by elevated sweat chloride concentration, or identification of mutations in each CFTR gene known to cause CF or in vivo demonstration of characteristic abnormalities in ion transport across the nasal epithelium” (p. 590).12
Though few children born with cystic fibrosis in the 1950’s could expect to survive to attend school, by 2006 half of all CF patients were expected to survive to 36.9 years.4 71% of patients are diagnosed within one year of birth; 92% of patients are diagnosed by the time they are ten years old.12
Presently there is no cure for CF, although research into normalizing the mutated ΔF508 CFTR protein product using small molecule pharmaceuticals continues. Physical therapy and medications can enhance patients’ length and quality of life. Current therapies include movement and clearing of mucus in the lungs, pharmaceutical treatment of infections, and diet and pancreatic enzyme replacement to improve nutrition.5 Lung transplants are an option (but not a cure) for adult patients with damaged lungs.6 Lung transplants for children are performed, but their clinical utility is unclear.7 Early detection through newborn screening can reduce deaths due to CF and alert parents and doctors to the need for disease management.8 Carrier screening also informs prospective parents about their risks of having an affected child. Screening and diagnostic methods, including genetic tests, are discussed in more detail below.
Researchers have used a plethora of gene identification methodologies to search for and map the CF gene. The nearly forty-year hunt for the CF gene began in the 1950’s. Using linkage analysis, researchers studied whether the CF gene was linked to blood groups but were unsuccessful.13, 14 A major difficulty in identifying the cystic fibrosis gene was the lack of cytologically detectable chromosome rearrangements or deletions. Such large-scale and DNA changes greatly facilitated the positional cloning of some other human disease genes.
In the 1980’s, new technologies were applied to search for the CF gene. Researchers used RFLP’s (restriction fragment length polymorphisms, which reflect sequence differences in DNA sites that can be cleaved by restriction enzymes) for linkage analysis to establish the approximate chromosomal location of genes. In 1985, Lap Chee Tsui and colleagues reported that an uncharacterized RFLP marker, DOCRI-917, was linked to the CF gene in 39 families with CF-affected children.15 It took four years of intensive effort by many laboratories to move from this initial linkage to find the mutated gene. Wainright et al. reported a tight linkage between the CF locus and another chromosome 7 probe, pJ3.11.16 Ray White and colleagues independently mapped the gene to chromosome 7.17 Lap-Chee Tsui and colleagues, using genetic linkage analysis, further localized the DOCRI-917 on human chromosome 7, but additional studies were needed to determine the exact location of the gene.18, 19 Zengerling and colleagues in 1987, used human-mouse cell hybrids to narrow the search to a small segment of chromosome 7.20 Shortly afterward, Estivill et al. reported a potential break-through in disclosing a candidate cDNA for the CF gene,21 but individuals with CF did not have mutations in that candidate gene. Rommens et al. closed the gap further, mapping two more probes (D78122 and D7S340) to a location between two markers known to flank the CF gene, MET and D7S38.22 Finally, in 1989, Drs. Tsui and John Riordan and colleagues from The Hospital for Sick Children in Toronto and Dr. Francis Collins and fellow researchers, then at the University of Michigan, identified the gene encoding the cystic fibrosis transmembrane conductance regulator or CFTR.23–25
This was the first time a human disease gene had been identified solely on the basis of its chromosomal location, without biochemical clues or the availability of visible cytogenetic rearrangements to guide the search. Although the identification of markers that flanked the gene did not indicate the gene’s exact location, the discovery of these markers did provide a starting point for novel DNA-cloning strategies specifically developed to locate the CFTR gene. These strategies included chromosome jumping from the flanking markers, cloning of DNA fragments from a defined physical region, a combination of somatic cell hybrid and molecular cloning techniques designed to isolate DNA fragments, chromosome micro-dissection and cloning, and saturation cloning of a large number of DNA markers from the 7q31 region. These techniques were pioneered in the hunt for the CF gene because it was a relatively common disease known to have a single-gene cause, and because the gene’s location was approximately known.
The CFTR gene encodes a protein that regulates the flow of chloride ions through membranes. Mutations in CFTR alter protein function, which in turn causes the symptoms of CF in afflicted patients. Because different mutations alter protein function in different ways and to different degrees, there are wide variations in the severity of the clinical syndrome. To date, scientists have found over 1,500 mutations in the CFTR gene.1, 26 ΔF508, a deletion of three nucleotides in DNA causes the protein to lack the amino acid phenylalanine (F) at position 508. That one mutation accounts for 70% of CF chromosomes worldwide, and 90% of CF patients in the United States. Individuals homozygous for ΔF508 (about 50% of patients) have the most severe form of cystic fibrosis.2, 27
Differences in the frequency of various mutations among ethnic groups complicate analysis of genetic testing. The Foundation for Blood Research reports: “A different mutation [than ΔF508] is the main cause of cystic fibrosis in Ashkenazi Jews. Half of Ashkenazi Jewish carriers of cystic fibrosis have the W1282X mutation (rarely found in non-Jewish carriers), whereas less than one-third have the [ΔF508] mutation. In other populations, no single mutation accounts for a dominant proportion” (p. 1–7).28
Certain CFTR mutations are known to result in a milder clinical syndrome. Some of these spare the pancreatic involvement (and are thus called “pancreatic sufficient”), and even milder mutations may result in just isolated male infertility, due to congenital bilateral absence of the vas deferens. But the severity of lung disease is not entirely predictable on the basis of genotype. As Grody et al. note, “It has been clear since the cloning of the gene that CFTR is a very complex genetic element, replete with an ever-growing number of identified mutations and variants and subject to modification in its phenotypic effects by internal polymorphisms and distant gene loci. It has been a major undertaking just to characterize the molecular and functional effects of the more common mutations. When it comes to rare variants… much less is known… The potential for misattribution of effects and for false assumptions is manifest” (p. 741).26 Thus, there is much to be learned that may affect how tests are licensed or conducted, making the relationship between the intellectual property and clinical data described below subject to continual revision.
Drs. Francis Collins and colleagues at The University of Michigan, and Drs. Lap-Chee Tsui, John Riordan, and colleagues at The Hospital for Sick Children (HSC) in Toronto, Canada, jointly determined the nucleotide sequence of the CFTR gene. Tsui, Collins, and their colleagues were the first to identify the ΔF508 mutation and to then link this mutation with symptomatic CF. According to Dr. Francis Collins, all parties including the CF Foundation and the Howard Hughes Medical Institute, which partially funded their research (along with NIH) and supported Dr. Collins as a Howard Hughes Medical Institute investigator, agreed that it was important to seek patent protection for the CFTR gene and the ΔF508 mutation because of the implications for diagnosis and potential therapies (e.g., gene therapy)(Personal communication with Dr. Francis Collins). Dr. David Ritchie, Senior Technology Licensing Specialist at the University of Michigan’s Office of Technology Transfer, recalls that there were extended discussions about whether patents should be applied for in foreign jurisdictions. However, given the possibility of commercial interest in both therapeutic and diagnostic applications, patent applications were eventually filed in the US, the European Patent Office, Japan, Australia, Ireland, and Canada just prior to publication in Science on September 8, 1989. (An initial US patent application (US1989000396894) was filed on August 22, 1989; the manuscript that became “Identification of the Cystic Fibrosis Gene: Cloning and Characterization of Complementary DNA” was submitted to Science on August 18, 1989.) This family of US and foreign patent applications covered the sequence of the normal and ΔF508 mutant cDNAs, genetic testing, the normal and mutant CFTR proteins, and vectors and cell lines expressing the normal and mutant CFTR genes.
The USPTO declared a patent interference after receiving a patent application from Genzyme Corporation, with Richard Gregory as the first inventor. The Genzyme application claimed the sequence of the CFTR cDNA, as well as rights to the CFTR-containing vector, which overlapped with claims in the Michigan-HSC patent applications. Subsequently, Genzyme argued that Tsui et al. failed to provide a written description of the manner and process for their inventions (USPTO interferences 103,882, 103,933, and 104,228). The interference proceedings went on for ten years and were resolved in part in Tsui’s favor in 2002.29–31 The Tsui patents covering both the wild-type CFTR cDNA sequence and ΔF508 mutant sequences (US 6,984,487) and the CFTR protein sequence (US 6,730,777) were granted. Genzyme was granted patent US 5,876,974, which covers methods for producing the CFTR cDNA. In 2006, Genzyme was granted US 7,118,911, which covers vectors for producing the CFTR cDNA (See Appendix B). Dr. Ritchie confirmed that the interference was a time consuming and expensive process. However, a licensee that was developing a CF therapeutic funded a majority of the interference costs for the University of Michigan and HSC. Importantly, one of the Tsui patent applications covering genetic testing methods for the ΔF508 mutation was not included in this interference and issued as US Patent No. 5,776,677 on July 7, 1998. Thus, licensing of this particular patent was not affected by the interference.
The University of Michigan and HSC choose to license the ‘677 patent non-exclusively, with University of Michigan managing patent rights in the US and HSC managing patent rights for the rest of the world. Dr. Ritchie indicated that the decision to license non-exclusively was made primarily in keeping with NIH licensing guidelines (Personal communication with Dr. David Ritchie, Office of Technology Transfer and Corporate Research, University of Michigan). According to Dr. Francis Collins, the CF Foundation actively participated in discussions about licensing and provided an important patient advocacy perspective. He recalls that the scientists involved in the discovery of CFTR had extensive discussions with technology licensing officers. These highlighted the uncertainty about the number of additional mutations that might be discovered later, the contribution of mutations to disease pathology (ΔF508 accounts for only ~70% of cases worldwide), and which technology platform would be best suited for high-sensitivity carrier detection. The Foundation and scientists were concerned that without complete knowledge of the mutation spectrum, or of future diagnostic testing platforms, an exclusive license to a single provider could impede long-term research and development of diagnostic tools. Dr. Collins stated that the decision made by the University of Michigan and HSC to license the ‘677 patent non-exclusively grew out of these discussions and concerns (Personal communication with Dr. Francis Collins). In 1992, the year before the first license for the patent was granted, the NIH’s guidelines followed Part 404 of the Code of Federal Regulations, which dealt with licensing of government owned inventions and stated that exclusive licensing is only acceptable if non-exclusive licensing would impede the development of products and not be in the public’s best interests.32 Dr. Ritchie stated that current licensing practices are designed to follow the National Institutes of Health’s 1999 “Principles and Guidelines for Recipients of NIH Research Grants and Contracts on Obtaining and Disseminating Biomedical Research Resources” (Personal communication with Dr. David Ritchie).33 Licensing practices are also in accordance with three relevant guidance documents that came out later, the 2004 “Best Practices for Licensing Genomic Inventions from the National Institutes of Health,”34 the 2006 Organisation for Economic Co-Operation and Development’s (OECD) “Guidelines for the Licensing of Genetic Inventions” (Personal communication with Arlene Yee and Dr. David Ritchie ),35 and the March 2007 “Nine Points” statement later endorsed by the Association of University Technology Managers.36 Dr. Ritchie shared a template of the non–exclusive license agreement for CF testing “kit” developers that enables companies to develop and sell genetic CF testing kits that include the ΔF508 mutation (see Appendix A, Personal communication with Dr. David Ritchie). A second non-exclusive license is also available for companies that wish to develop their own “in-house” CF assays for testing patient samples at a “single site” laboratory.
The initial license fee for kit licenses is $25,000, which has not changed in over 15 years. The annual fees too have remained unchanged since the initial license was granted in 1993. The initial license fee for the in-house commercial test is $15,000 (Personal communication with Dr. David Ritchie). As indicated in section 4.2 of the “Kit” License Agreement (Appendix A), licensees must agree to pay a 6% royalty on their net sales of products. However, as Dr. Ritchie explained, these licenses also take into account “a licensee’s need to add additional technologies (i.e., mutations) to a final product by allowing this royalty rate to be reduced by 40%. Thus, the actual royalty percentage generally is agreed to be 3.6%, which does not impede a licensee from entering the marketplace” (Personal communication with Dr. David Ritchie). Revenue obtained from these fees and royalties have gone, in large part, toward covering the costs for international patent protection.
Detailed information about current licensing of the US 5,776,677 patent was initially gathered from The University of Michigan as part of a study of university licensing practices,37 and then supplemented with their permission. According to Dr. Ritchie, all licenses are non-exclusive. The first license for a therapeutic product was granted in 1993 for gene therapy; the first license for a diagnostic kit was granted in 1996 (Personal communication with Dr. David Ritchie). As of 2008, the University of Michigan and HSC have 21 active licenses covering the ΔF508 mutation (Personal communication with Dr. David Ritchie). As of 2002, licenses generated between $1 and $10 million in revenue (Personal communication with Dr. David Ritchie and Lori Pressman, data shared with permission of University of Michigan and the Hospital for Sick Children). Currently, 63 American laboratories perform CF testing. The majority of those labs are academic medical centers or hospital-based genetic testing laboratories that use CF test kits developed under these licensees.11
Dr. Ritchie recalled only one instance in the past ten years that dealt with potentially infringing activity. A licensee advised the University of Michigan of an unlicensed company advertising CF diagnostic services to consumers. Dr. Ritchie contacted the company and verbally informed it of the ‘677 patent and asked if the company was interested in taking a license. Because the company in question “dropped it,” and presumably ceased offering diagnostic services, the matter was not taken to the level of formal, written communication or legal action (Personal communication with Dr. David Ritchie).
Licensing practices are especially important because CF tests are essential in newborn screening and population screening for carriers. As Grody et al. state, “Perceiving a large market as CF screening was declared standard of care for the entire population, the first of any commercial consequence in the history of molecular genetics, reagent and equipment vendors quickly developed and began marketing test platforms. Indeed, virtually overnight CF became the flagship test product offered by many established and start-up companies” (p. 739).26 Currently, the FDA has approved at least two diagnostic “kits” for cystic fibrosis, and other companies are proceeding through the regulatory process for producing and selling diagnostic devices.
For example, one FDA-approved diagnostic kit is the Luminex Kit, which includes intellectual property held by HSC and Johns Hopkins.38 The HSC and Hopkins patents cover mutations other than the ΔF508 mutation (See Appendix B). Two of the four mutations covered by Hopkins patent U.S. Patent No. 5,407,796 are included in the American College of Medical Genetics’ (ACMG’s) currently recommended list of mutations to test. Laboratories that test for the ΔF508 mutation as well as the mutations patented by HSC and Hopkins presumably must obtain licenses from all three patent-holding institutions (Michigan-HSC, HSC, and Johns Hopkins) since “valuation” of each of the mutations is always a negotiable topic and each institution is best able to defend its valuation philosophy.
Another major player in CF testing is Ambry Genetics, which advertises several proprietary CF tests. The advertisements state that Ambry has “analyzed the complete CF gene in more than 10,000 patient samples.”39 Ambry’s most extensive test is CF Amplified. According to Ambry, it “detects approximately 99% of mutations in all ethnic groups” (p. 2).39 Unlike Luminex’s Tag-It kit that only tests for 39 mutations and 4 variants, the CF Amplified test sequences the CFTR gene and includes rearrangement testing.39 Presumably Ambry had to license the same patents as Luminex. Johns Hopkins offers non-exclusive licenses to its patent to kit developers, judging from the fact that both Ambry and Luminex offer tests that cover mutations claimed in the Hopkins patent. Johns Hopkins University confirmed that its cystic fibrosis patent is licensed non-exclusively for commercial CFTR testing (Personal communication with Leigh A. Penfield, Associate Director, Johns Hopkins Technology Transfer, Johns Hopkins University).
Other manufacturers are preparing FDA approved diagnostic tests to compete in the CF testing and screening markets, further increasing the probable number of licensees of the University of Michigan, HSC, and Hopkins patents. In spring 2007, Nanogen announced that “it has submitted the 510(K) [premarket notification] to FDA for its Cystic Fibrosis Kit and NanoChip 400 microarray system.”40 The kit tests for the ACMG-recommended 23 mutations.40 In January 2007, Third Wave also submitted a 510(K) form for its CF test, which is “intended to provide information to determine CF carrier status in adults, as an aid in newborn screening and in confirmatory diagnostic testing in newborns and children.”41 The FDA has since approved the test for diagnostic use.42 On June 9, 2008, Third Wave and Hologic announced Hologic’s purchase of Third Wave for $580 million cash. In a conference call, Hologic’s Chairman said that one reason for the acquisition was that the CF test “will be a natural complement to our full-term preterm birth product which is sold by our OB/Gyn sales force” (p. 4).42 Although genetic tests for Human Papilloma Virus were described as a more important reason for the acquisition than the CF testing platform, it seems that Third Wave’s ability to license and use intellectual property including CF mutations was an asset.
More recently, several nonprofit institutions that fund for-profits doing either CF research or drug development for developing world chronic conditions such as diarrhea have approached the University of Michigan and HSC about licensing rights in order to develop and use screening assays for the discovery of small molecule drugs useful for treating patients with the ΔF508 mutation, or for drug development to treat diarrhea (which also involves the CFTR protein). Because much of the original research leading to the discovery of the CFTR gene was funded by two nonprofit organizations, the Cystic Fibrosis Foundation and the Howard Hughes Medical Institute, specific licenses were developed for both The Cystic Fibrosis Foundation Therapeutics, Inc. (CFFT), and for One World Health, whose missions, in part, are to ensure broad access to medical technologies. This is a new type of “research” license for the use of CFTR-related patents and grants both CFFT and One World Health rights to sub-license appropriate patents covering research tools such as the CFTR gene sequence and cell lines containing either the native gene or ΔF508 mutation to for-profit companies conducting research. Applicable research includes screening small-molecule libraries to produce therapeutic CF or anti-diarrheal drugs (Personal communication with Dr. David Ritchie). The parties developed this promising licensing strategy to reduce transaction costs and facilitate research on new therapeutic drugs for treating these devastating conditions. Success could be especially beneficial in resource-poor regions of the world where diarrheal diseases are endemic. According to Dr. Ritchie, the University of Michigan and HSC will receive a small sublicense fee whenever a sublicense is granted but will not receive any royalties from sales of the final drug products. In other words, this license does not give the University of Michigan or HSC any “reach through” rights since they have only licensed access to research tools.
Table 1 shows the test panel currently recommended by the ACMG with annotations describing how the relevant intellectual property is distributed.9 The clinical importance of the chart is discussed below. The mutation list below is a current standard of care that the test market aims to meet or exceed.
Early detection of CF is important to improve disease management. Farrell et al. found that “early diagnosis of CF through neonatal screening combined with aggressive nutritional therapy can result in significantly enhanced long-term nutritional status” (p. 2).43 In 2005 the CDC released recommendations on newborn screening for cystic fibrosis and indicated several benefits from newborn screening both for disease management and improving quality of life.44, 45 In a review in 2006, Grosse et al. found that newborn screening can reduce childhood mortality from CF.8
In May 2006, the ACMG published a report from its Newborn Screening Expert Group, which included academic experts, government officials, professional medical organization representatives, and patient advocates. The report recommended that newborns undergo testing for CF and twenty-eight other conditions in state newborn screening programs. The report considered the model of initial screening for unusually high levels of the enzyme immunoreactive trypsinogen (IRT), followed by a second IRT test and then a DNA test if necessary.46 In a letter to DHHS Secretary Leavitt, the Secretary’s Advisory Committee on Heritable Disorders and Genetic Diseases in Children (SACHDGDC) “strongly and unanimously recommends that the Secretary initiate appropriate action to facilitate adoption of the ACMG recommended screening panel [which includes CF] by every State newborn screening program” (p. 4).47
The ACMG’s guidelines for newborn screening call for testing of levels of the IRT enzyme which if unusually high are indicative of CF, followed by a repeat IRT test, or DNA testing, and a sweat test for elevated chloride levels that will confirm indicate a diagnosis of CF. In the screening protocol either a positive repeat of the IRT test or a positive DNA test for one of 23 mutations leads to a sweat chloride test for confirmation.10
Although comprehensive data about states’ testing practices are not available, some information is available from the National Newborn Screening Information System. According to their 2008 report on cystic fibrosis screening, at least 28 states include cystic fibrosis in their newborn screening programs. All of those states test IRT in the first round of testing; 17 of them use a DNA test if IRT levels indicate a second round of testing is required. At least 7 of those DNA tests are based on testing for 38 to 43 mutations (2008 data from National Newborn Screening Information System on file with authors). As of November 11, 2009, all states except Texas conduct universal newborn screening, and Texas plans to begin mandatory universal screening on December 1, 2009.48 Given the spate of recommendations on CF testing, this situation seems likely to continue evolving rapidly.
Current guidelines for genetic testing for CF mutation carriers were developed in response to a 1997 National Institutes of Health (NIH) report, which stated, “Genetic testing for CF should be offered to adults with a positive family history of CF, to partners of people with CF, to couples currently planning a pregnancy, and to couples seeking prenatal care” (p. 1529).49 In 2001, the ACMG published recommendations on cystic fibrosis carrier screening. In 2001, the American College of Obstetricians and Gynecologists (ACOG), the ACMG and the NIH Steering Committee incorporated those recommendations into a set of clinical guidelines and educational material sent to clinicians. The ACMG called for screening to be offered to a more specific population of “non-Jewish Caucasians and Ashkenazi Jews” (p. 150).50 The ACMG recommended using a pan-ethnic CFTR panel of twenty-five CFTR mutations, all of which occurred in at least 0.1% in the general U.S. population. In 2004, additional data on the rarity of two mutations persuaded the ACMG to remove them from the panel.9, 50 The updated panel will detect mutations in 94% of Ashkenazi Jewish carriers, 88% of non-Hispanic Caucasian carriers, 72% of Hispanic Americans, 65% of African Americans, and 49% of Asian Americans.3 As of 2006, the ACMG still endorses the updated panel of twenty-three mutations.51
In its 2001 recommendations, the ACMG advised providers that they should not routinely offer testing for additional mutations. However, providers could disclose the existence of such extended panels to inquiring patients and use such panels on an ad hoc basis. Couples in which one or both partners are positive, those with family history of CF, or males found to have mutations associated with infertility require further genetic counseling or additional testing strategies. In those cases, the ACMG encouraged clinicians to direct patients to visit genetics centers. Also, “patients diagnosed with CF… should be referred [directly] to a genetics center for appropriate testing and counseling” (p. 149).50 While acknowledging that “testing will often occur in the prenatal setting,” the ACMG urged “preconception testing… whenever possible” (p. 150).50
The ACMG also recommended that providers make carrier testing available to couples whose ethnic background reduces their risk for CF but also might have CF mutations of lower frequency in existing databases, because current data are based primarily on Caucasian population studies. The ACMG specifically indicated that “Asian-Americans and Native-Americans without significant Caucasian admixture should be informed of the rarity of the disease and the very low yield of the test in their respective populations” (p. 150).50 Likewise, the ACMG recommend that “testing should be made available [but not offered] to African-Americans, recognizing that only about 50% of at-risk couples will be detected” (p. 150).50 The corollary is that CF screening and testing in populations outside Europe and North American might require better data about CFTR mutations in non-Caucasian populations.
For Ashkenazi Jewish and Caucasian couples of Northern European descent, the ACMG recommended couple-based testing. In couple-based testing, or concurrent testing, the lab collects and tests a sample from each partner and fully discloses the results to each partner. In populations in which individuals are less likely to be CF mutation carriers, or in cases where testing both partners simultaneously is difficult, providers can consider testing one person and then only testing the second if the first has a mutation (sequential testing). “In general, the individual provider or center should choose whichever method they feel most appropriate or practical” (p. 150).50
In December 2005, the American College of Obstetricians and Gynecologists (ACOG) updated its recommendations. ACOG expressed concern that “most obstetricians are offering [CF] carrier screening to their pregnant patients… [but] significantly fewer obstetrician-gynecologists offer nonpregnant patients [CF] carrier screening unless a patient requests the information or has a family history” (p. 1465).3 Noting how “difficult [it] is to assign a single ethnicity” to a patient, the ACOG nonetheless recommended increasing the scope of carrier testing. “It is reasonable to offer CF Carrier screening to all couples regardless of race or ethnicity as an alternative to selective screening” (p. 1466).3 This recommendation comes with the caveat that providers should be clear about the impact of ethnicity on carrier risk and test sensitivity. Further, “cystic fibrosis carrier screening should be offered before conception or early in pregnancy when both partners are of Caucasian, European, or Ashkenazi Jewish ethnicity. Patients may elect to use either sequential or concurrent carrier screening; the latter option may be preferred if there are time constraints for decisions regarding prenatal diagnostic testing or termination of the affected pregnancy. Individuals who have a reproductive partner with cystic fibrosis or congenital bilateral absence of the vas deferens may benefit from screening with an expanded panel of mutations or, in some cases, a complete analysis of the CFTR gene by sequencing” (pp. 1466–1467).3
The 2006 updated ACMG Standards and Guidelines for CFTR Mutation Testing state that prenatal CFTR mutation testing is indicated if there is a “positive family history,” “a CF mutation in both partners,” or an “echogenic bowel in fetus during second trimester.”51 The test can be performed using “both direct and cultured amniotic fluid cells (AFC) and chorionic villus samples.”51 The parents should both be tested before the fetus. Because of the results’ significance, “The laboratory must… provide referring professionals with appropriate instructions. Laboratories must have a prenatal follow-up program in place to verify diagnostic accuracy.”51 The 2006 recommendations also note that prenatal diagnostic testing typically requires a larger mutation panel than carrier screening. “A larger number of mutations (>23) is generally appropriate for diagnostic testing in order to achieve the highest possible clinical sensitivity, but care should be taken to ensure that the penetrance of tested mutations is known.”51 Finally, “A positive prenatal diagnostic test result is considered to be definitive rather than predictive since the penetrances for these 23 mutations are known to be high.”51
In October 2002, the ACMG Laboratory Quality Assurance Committee released Standards and Guidelines for CFTR Mutation Testing, intended as an educational resource for clinical laboratory geneticists.52 Preimplantation testing is indicated for CF in the 2002 guidelines and the 2006 updated version.51 Despite lingering technical concerns about performing DNA assays using a relatively small sample, preimplantation diagnosis for CF was first reported in 1992 and has continued to occur.53
The updated 2006 ACMG Standards and Guidelines for CFTR Mutation Testing note that CF mutation testing is indicated for diagnostic purposes when there is a possible or definite clinical diagnosis of CF, when an infant presents with meconium ileus (excessively thick bowel movements immediately after birth), or when a male presents with congenital bilateral absence of the vas deferens. Because this mutation testing is done for diagnostic rather than screening purposes, laboratories may need to expand the mutation panel beyond the core twenty-three mutations used in carrier testing.51 The ACOG adds that while gene sequencing “is not appropriate for routine carrier screening,” it is acceptable “for patients with cystic fibrosis, a family history of cystic fibrosis, infertile males with congenital bilateral absence of the vas deferens, or a positive newborn screening test result when mutation testing using an expanded panel of mutations has a negative result” (p. 1466).3
More recently, Grody and others involved in the ACMG statements have expressed personal concern about the use of rapidly increasing number of mutations and gene sequencing options. This trend is not necessarily in patients’ best interest because of limited knowledge about the CF’s genetic basis. “[A] large number of mutations selected for expanded panels… were chosen because the testing laboratory happened to stumble upon one, or read about it in a research or clinical paper whose researcher or clinician author had likewise stumbled upon it. In other words, these are very rare events, arbitrary almost to the point of randomness” (p. 741).26 Given the frequency with which guidelines have been released and debated, medical consensus and guidelines for diagnostic testing as well as other testing forms seem likely to evolve.
Prices for CF genetic tests were obtained from twelve laboratories. All tests refer to the CFTR gene. Prices are those charged to insurance companies, except for Quest Diagnostics and Johns Hopkins University DNA Diagnostic Laboratory, which chose to provide out-of-pocket costs for patients who do not use insurance to cover the test. Sequencing prices are discussed below. The cost of mutation analysis is discussed in “Cost Effectiveness of CF Screening.” (See table 2 for summary.) Unless a laboratory’s website is referenced, authors obtained prices through personal communications with the laboratories during February and June-July 2008.
ARUP Laboratories (owned by University of Utah)
Baylor College of Medicine54
Boston University Center for Human Genetics55
City of Hope Molecular Diagnostic Laboratory
Johns Hopkins University DNA Diagnostic Laboratory
Mayo Clinic Molecular Genetics Laboratory
Comparing the prices of CF genetic testing is difficult. First, none of the labs surveyed offered identical mutation panels. Second, although CPT codes provide some standardization, at least for full sequencing analysis tests, they do not necessarily indicate that techniques and procedures are identical. The contribution of different techniques and procedures (usually billed under different CPT codes for each test) is not always known. Even after comparing pricing based on CPT codes, which are not always consistent among labs, the labs surveyed have different overhead costs and ways of accounting for such costs.
With those caveats noted, the price range for CFTR gene sequencing among non-profit institutions ($40 to $86.23 for each sequence targeted for amplification or amplicon) is higher than the per amplicon price range for non-profits’ sequencing the colorectal cancer gene APC ($28.57 to $ 39.88). However the price per amplicon for CFTR sequencing is comparable to that of non-profit labs’ price ($30.00 to $77.44/amplicon) for sequencing MLH1, MSH2, and MSH6 genes.58 This comparison between the prices of sequencing different genes is only an approximation. The fact that Baylor College of Medicine, City of Hope, and Harvard perform both colorectal cancer and CF testing and that colorectal cancer genes are also licensed non-exclusively by non-profits makes the comparison worth noting. Specifically, the same labs performing these two tests presumably incur similar overhead costs. Also, because JHU has patents on certain CFTR mutations as well as APC and MSH2, there is at least one common actor involved in licensing intellectual property associated with colorectal cancer testing and CF testing. Sequencing the colorectal cancer genes and CFTR, on a price per amplicon basis, is comparable to sequencing the BRCA1 and BRCA2 genes, for which the sole provider Myriad Genetics charges $38.05 per amplicon.58 That is, CF and colorectal cancer genes cost slightly more to PCR-amplify and then sequence at non-profit academic institutions than BRCA1 and BRCA2 genes at Myriad Genetics, the single for-profit provider.58
Cost effectiveness of CF testing is a concern for payers and consumers. If testing is cost effective at a certain price and CF tests that analyze patented mutations are available at or below that price, then CF licensing practices at least do not preclude cost effective testing. As the CF testing market continues to develop, licensing practices may also have to evolve, although changes are contingent on current licensing terms until they expire or are renegotiated.
The first step in analyzing cost effectiveness for CF testing is to determine the financial cost of treating the disease. According to the 1997 NIH Consensus Development Conference Report:
Using data from 1989, the Office of Technology Assessment estimated in 1992 that the annual treatment costs for CF were approximately $10,000 per year per individual. Current estimates are over $40,000 per year in direct medical costs and $9,000 per year in other related costs. Using a 3% annual inflation rate, an estimated total of $800,000 [in 1996 dollars] can be assumed for each CF birth. 49
Other studies give varying U.S. estimates of the lifetime financial cost of medical care for a CF patient, ranging from $220,000 to $844,000 (1996 dollars).59
The next step is to compare that cost to the cost of various tests. Evidence is available for carrier and prenatal screening and, to a much lesser extent, preimplantation genetic diagnosis (PGD).
When analyzing cost effectiveness of CF carrier testing, costs beyond providing the actual test include obtaining informed consent, providing educational and counseling services, and other administrative costs. To assess the cost effectiveness of universal prenatal screening, a number of additional factors must be considered including the number of participants, the population rate of CF carriers, the number of couples with an affected fetus who would choose to terminate the pregnancy, the number of children couples may desire, and the testing method used.
In one study by Asch et al., the costs and clinical outcomes of sixteen strategies for CF carrier screening were evaluated using a model of 500,000 pregnancies in a population of only European descent.60 Asch et al. found that a sequential screening approach minimized the cost of averting CF births. With this approach, the first partner was screened with a test for the ΔF508 mutation and five other common mutations known at the time. This panel, covering fewer mutations than the ACMG now recommends, was modeled as identifying 85% of carriers in the population. If the first partner tested positive, the second partner was screened with an expanded test of another twenty to thirty mutations estimated to identify 90% of carriers. In the end, such an approach identified 75% of anticipated CF births at a cost of $367,000 (1995 dollars) per averted birth. However, this estimate only holds true if “all couples who identify a fetus as high risk choose to terminate the pregnancy. If only half of couples will proceed to abortion under these circumstances, the cost per CF birth avoided would increase to $734,000 per CF birth avoided” (p. 209).60 Also, “for couples planning two pregnancies, the cost effectiveness ratios for CF screening are roughly half those of the single-pregnancy case,” meaning that the cost per CF birth avoided is roughly halved (p. 209).60
In 2007, Wei et al. analyzed data collected between 2001 and 2005 on more than 6,000 women screened for CF carrier status at the Henry Ford Health System in Detroit, Michigan.61 Wei’s study complements Asch’s work by providing a more ethnically diverse cohort that was 45% African American, 35% non-Jewish Caucasian, 10% Arab American, 5% Hispanic, 5% Asian and 1% Ashkenazi Jewish. The study excluded “patients with a family history of CF, a known/possible diagnosis of CF, males with infertility, and fetuses with echogenic bowels” (p. 104).61 98.5% of her cohort received sequential screening that included the 25 ACMG recommended mutations in addition to another seven to seventeen mutations. Over four years and at a total cost of $334,000 (2005 dollars), testing identified six positive couples and one (subsequently aborted) fetus with mutations from both parents. Comparing this to a lifetime care cost of $1 million per CF patient, which is within the range indicated by other studies, Wei et al. concluded that population-based carrier screening is cost-effective even when it includes a high number of non-Caucasians. Wei’s cost per CF birth averted is less than Asch et al.’s best-case scenario of $367,000 per averted birth even before the two studies are normalized to same-year dollars.
Rowley et al. used data from a trial of CF carrier screening to analyze cost effectiveness.62 4,879 women were tested, 124 of whom were CF carriers but none of whom had pregnancies diagnosed with CF through prenatal testing. Costs (given below) were based on surveys, data from the US Congress’s Office of Technology Assessment, and personal communications. Based on those figures and the behaviors observed in the carrier screening trial, Rowley et al. determined the cost effectiveness of screening a hypothetical cohort of a 100,000 women. In their model, at a total cost of $11.1 million, 8.4 CF affected pregnancies were terminated. This translated to $1.322 million to $1.396 million per averted birth, depending on whether parents choose to have another child. Assuming a lifetime care cost of $1.574 million per CF patient, Rowley et al. concluded that “the averted medical-care cost resulting from choices freely made are estimated to offset ~74%–78% of the costs of a screening program” (p. 1160).62 The study added that “the cost of prenatal CF carrier screening could fall to equal the averted costs of CF patient care if the cost of carrier testing were to fall to $100” (p. 1160).62 Assuming that a pregnancy is terminated because of CF and the family does not have another pregnancy, there is no gain in terms of aggregate family quality-adjusted life-years. If the family has another pregnancy, the marginal cost for prenatal CF carrier screening is estimated to be $8,290 per quality-adjusted life-year (QALY). This figure “is comparable to that for newborn screening for phenylketonuria and is more advantageous than the ratios for many widely advocated preventive interventions” (p. 1168).62 Neither Asch et al. nor Wei et al. included QALY in their metrics, precluding a QALY-based comparison.
Other reports were considered in an extensive review produced by the Foundation for Blood Research in cooperation with the CDC.63 Although the review’s discussion of previous studies is too extensive to describe here, the review did produce a relevant summary of the financial costs of testing. Using 1996 dollars, the review concluded that diagnosing one case of CF by population screening would cost approximately $400,000 for Ashkenazi Jewish descendants, $500,000 among non-Hispanic Caucasians, and $19 million among Asian Americans. The $19 million figure reflects the low rate of detecting CF in Asian Americans.
Boston University’s panel of 40 mutations (including the ACMG’s recommended mutations) for $195 and Ambry’s test for ΔF508 mutations for $85 both show that the market is at least approaching Rowley’s threshold cost of $100 for a cost-effective carrier screening test. Although we cannot estimate overall costs from our price survey, the empirical evidence and empirically derived models discussed above suggest that licensing practices for CFTR at least do not preclude cost-effective screening for CF.
Although PGD has been used to detect CF in embryos for more than a decade, there is very limited evidence for its cost effectiveness. In an oral presentation supported by the Reproductive Genetics Institute and reported in Fertility and Sterility, the cost of performing PGD on 11,511 embryos ($235 million) was compared to the cost of treating CF patients who have been born had PGD not been used to avoid implanting CF affected embryos (est. total $50 million annually, based on $55,537 annual direct care costs per patient).64 The presenters concluded, “Offering IVF-PGD to all CF carrier couples… is highly cost effective and will save hundreds of millions of direct health care dollars annually” (p. S59).64 Working in Taiwan, Tsai performed PGD “without using fluorescent primers and expensive automatic instrumentation,” which was an improvement over previous techniques and a reduction in financial cost (p. 1048).65 Neither of those sources gives as much empirical evidence as the studies discussed above, leaving PGD’s cost effectiveness open to further research.
There is no direct evidence that the patent process affected the research that ultimately led to CFTR gene discovery. The prospect of patents was not reported as an important incentive to do the research, which was largely funded by government and nonprofit entities hoping to understand the disease. Though linkage analysis of the CFTR gene was not successful throughout the 1950’s,14, 66 RFLP (restriction fragment length polymorphism) mapping enabled genetic linkage to chromosome 7 to be established in the 1980’s. Researchers identified the first linkage between a marker and the CF phenotype in 1985 and identified the CFTR gene and its most common mutation, ΔF508, in 1989.15, 19
Multiple individuals and institutions applied for patents at the same time and the discovery of the CFTR gene was characterized as a “race.”67 However, academic competition more than the prospect of patents incited the intense hunt for the CFTR gene and innovation in techniques for gene mapping and positional cloning of genes, at least among the several academic groups involved. Two primary academic groups (Francis Collins and colleagues, University of Michigan and John Riordan, Lap-Chee Tsui and colleagues at The HSC) combined their complementary approaches to advantage and were successful in beating the competition and discovering the CFTR gene in June 1989. Collins, Riordan and Tsui published their findings simultaneously in three back to back papers in September 1989 in Science. As mentioned earlier, they also jointly filed for patents. We have not found any evidence that CF gene patents impeded subsequent basic or clinical research.
There is no evidence that the patent process affected the speed of genetic test development. The CF patent interferences were ultimately resolved in 2002, largely in the favor of Tsui and Collins. The interference process took several years to resolve at significant expense. However, it does not appear that the interference proceeding added time to the commercial test development process. It did add costs that were largely borne by one of the patent licensees (who had licensed for therapeutic use such as gene therapy) and not the academic research institutions. During patent inference proceedings, the University of Michigan and The Hospital for Sick Children practiced broad, nonexclusive licensing of patents covering mutations including the ΔF508 mutation. The fact that the NIH Consensus Conference (1997) guidelines recommended genetic testing for all “adults with a positive family history of CF, to partners of people with CF, to couples currently planning a pregnancy, and to couples seeking prenatal testing” and that the 2001 ACMG statement made a similarly broad recommendation for carrier screening suggests that CF genetic test was widely available by the time these reports were released.49, 50
Development and commercialization of new test techniques and technologies continue for CF genetic testing. Laboratories use several test methods, platforms and kits or analyte specific reagents (ASRs). It is likely that broad and non-exclusive licensing practiced by the University of Michigan, HSC, and Johns Hopkins University has facilitated commercial kit development by lowering IP-related barriers to entry. As of July 2008, 64 labs across the country offer CF testing.11 Patents do not appear to limit overall commercial availability.
Direct-to-consumer marketing has not been practiced for CF testing. Marketing and education for CF testing is provided by health professionals within professional associations, among primary care physicians, and among pediatricians. Most laboratories will not perform tests without a doctor’s referral. However, as guidelines have called for widespread use of the test, the number of test providers has risen.1, 26 Although this may increase access, it also means that companies have an incentive to prepare marketing material for patients. In any case, patents and licensing practices have not prevented marketing and publicizing CF testing to date. Non-exclusive licensing may have facilitated growth of the CF genetic testing market.
There is no evidence that patents reduced adoption of CF tests by laboratories, healthcare providers, or third party payers.
There is no evidence that CFTR gene patents and licensing have limited consumer utilization.
Cystic Fibrosis was selected as a case study for this report to the SACGHS as an example of broad non-exclusive licensing of patented genetic tests. Some providers note that gene patents can limit their practice of medicine and specifically their ability to provide genetic tests. However, Dr. Debra Leonard notes that “[i]f every license or every patent was being licensed like this cystic fibrosis Delta F508 mutation,” then such constraints on medical practitioners and the associated controversies would be greatly reduced (p. 7).68 Our research shows how patenting and licensing decisions by the University of Michigan, The Hospital for Sick Children and Johns Hopkins University allow for significant research without unduly hindering patient access or commercial markets. These practices also preserve strong patent protection and the accompanying investment incentives for possible therapeutic discoveries arising from the same DNA patents. Our study also suggests that the active participation of the CF Foundation (which funded part of the research)67 in discussions about intellectual property and licensing allowed patient perspectives to be included and may have significantly influenced decisions about licensing. In addition, scientists’ perspectives on uncertainties associated with genetic testing in the long term, especially in light of future discoveries and technological evolution, also helped inform decisions about optimal commercialization strategies. Indeed, the broad, non-exclusive diagnostic licensing practices associated with the patents surrounding CF allow for competition as well as innovation.
This case study was reviewed by Francis Collins, Arlene Yee, David Ritchie, and Leigh Hopkins for the Secretary’s Advisory Committee on Genetics, Health, and Society.
This License Agreement, effective as of the ___day of ________, 2004 (the “Effective Date”), entered into by ____________________, a corporation incorporated in the State of _________, located at _____________________________________ (“LICENSEE”), the Regents of the University of Michigan, a constitutional corporation of the State of Michigan (“MICHIGAN”), and HSC Research and Development Limited Partnership, a partnership organized and subsisting under the laws of the Province of Ontario, Canada (“RDLP”). LICENSEE, MICHIGAN and RDLP agree as follows:
Due to the unique relationship between the Parties, this Agreement shall not be assignable by LICENSEE without the prior written consent of MICHIGAN and RDLP. Any attempt to assign this Agreement without such consent shall be void from the beginning. MICHIGAN and RDLP shall not unreasonably withhold consent for LICENSEE to assign this Agreement to a purchaser of all or substantially all of LICENSEE’s business. No assignment shall be effective unless and until the intended assignee agrees in writing with RDLP and MICHIGAN to accept all of the terms and conditions of this Agreement. Further, LICENSEE shall refrain from pledging any of the license rights granted in this Agreement as security for any creditor.
If during the term of this Agreement, LICENSEE shall make an assignment for the benefit of creditors, or if proceedings in voluntary or involuntary bankruptcy shall be instituted on behalf of or against LICENSEE, or if a receiver or trustee shall be appointed for the property of LICENSEE, MICHIGAN and RDLP may, at their option, terminate this Agreement and revoke the license herein granted by written notice to LICENSEE.
LICENSEE agrees to refrain from using and to require Affiliates to refrain from using the name of MICHIGAN, HHMI, RDLP and HSC in publicity or advertising without the prior written approval of that entity.
LICENSEE agrees to mark, and to require Affiliates to mark, Products with the appropriate patent notice as approved by MICHIGAN or RDLP (when appropriate), such approval not to be unreasonably withheld.
Any notice, request, report or payment required or permitted to be given or made under this Agreement by a Party shall be given by sending such notice by certified or registered mail, return receipt requested, to the address set forth below or such other address as such Party shall have specified by written notice given in conformity herewith. Any notice not so given shall not be valid unless and until actually received, and any notice given in accordance with the provisions of this Paragraph shall be effective when mailed.
The University of Michigan Technology Management Office Wolverine Tower, Room 2071 3003 South State Street Ann Arbor, MI 48109-1280 U.S.A.
Attn.: File No. 492p2
with a copy to:
HSC Research and Development Limited Partnership 555 University Avenue, Suite 5270 Toronto, Ontario M5G 1X8 CANADA
In the event that any term, provision, or covenant of this Agreement shall be determined by a court of competent jurisdiction to be invalid, illegal or unenforceable, that term will be curtailed, limited or deleted, but only to the extent necessary to remove such invalidity, illegality or unenforceability, and the remaining terms, provisions and covenants shall not in any way be affected or impaired thereby.
This Agreement contains the entire understanding of the Parties with respect to the matter contained herein. The Parties may, from time to time during the continuance of this Agreement, modify, vary or alter any of the provisions of this Agreement, but only by an instrument duly executed by authorized officials of all Parties hereto.
No waiver by a Party of any breach of this Agreement, no matter how long continuing or how often repeated, shall be deemed a waiver of any subsequent breach thereof, nor shall any delay or omission on the part of a Party to exercise any right, power, or privilege hereunder be deemed a waiver of such right, power or privilege.
The Article headings herein are for purposes of convenient reference only and shall not be used to construe or modify the terms written in the text of this Agreement.
The relationship between the Parties is that of independent contractor and contractees. LICENSEE shall not be deemed to be an agent of MICHIGAN or RDLP in connection with the exercise of any rights hereunder, and shall not have any right or authority to assume or create any obligation or responsibility on behalf of MICHIGAN or RDLP.
No Party hereto shall be deemed to be in default of any provision of this Agreement, or for any failure in performance, resulting from acts or events beyond the reasonable control of such Party, such as Acts of God, acts of civil or military authority, civil disturbance, war, strikes, fires, power failures, natural catastrophes or other “force majeure” events.
This Agreement and the relationship of LICENSEE to the other Parties shall be governed in all respects by the law of the State of Michigan or the Province of Ontario (notwithstanding any provisions governing conflict of laws under such law to the contrary), depending upon the jurisdiction in which any action relating to the Agreement is brought; except that questions affecting the construction and effect of any patent shall be determined by the law of the country in which the patent has been granted.
LICENSEE hereby consents to the jurisdiction of the courts of the State of Michigan over any dispute concerning this Agreement or the relationship of the Parties. Should LICENSEE bring any claim, demand or other action against MICHIGAN or RDLP, including their fellows, officers, employees or agents, arising out of this Agreement or the relationship between the Parties, LICENSEE agrees to bring said action only in an appropriate court of the State or Province of that Party.
HHMI is not a party to this Agreement and has no liability to any licensee, sublicensee, or user of anything covered by this License Agreement, but HHMI is an intended third-party beneficiary of this License Agreement and certain its provisions are for the benefit of HHMI and are enforceable by HHMI in it own name.
IN WITNESS WHEREOF, the Parties hereto have executed this Agreement in triplicate originals by their duly authorized officers or representatives.
FOR HSC RESEARCH AND DEVELOPMENT THE LIMITED PARTNERSHIP
FOR THE REGENTS OF UNIVERSITY OF MICHIGAN
July 28, 2005
Title: Cystic Fibrosis Gene
Inventors: Tsui, Riordan, Collins, Rommens, Iannuzzi, Kerem, Drumm, Buchwald,
Abstract: The cystic fibrosis gene and its gene product are described for both the normal and mutant forms. The genetic and protein information is used in developing DNA diagnosis, protein diagnosis, carrier and patient screening, drug and gene therapy, cloning of the gene and manufacture of the protein, and development of cystic fibrosis affected animals.
Patent Applications Pending:
|US Continuation (6)||08/123,864||20/09/93|
|US Divisional (7)||08/252,778||2/06/94|
|US Divisional (3)||08/446,866||6/06/95|
|US Divisional (5)||08/469,630||6/06/95|
|US Divisional (4)||08/469,617||6/06/95|
|(2) Australia granted||647,408||25/01/94|
|(3) US issued||5,766,677||7/07/98|
|(4) US issued||6,201,107||13/03/01|
|(5) US issued||6,730,777||4/05/04|
|(6) US allowed on 6/04/05|
|(7) US issued||6,902,907||7/06/05|
|(8) Ireland granted||83911||6/05/05|
HUMAN STUDIES: All interviews were conducted under Duke University IRB-approved protocol 1277 and usually conducted by phone and recorded. Researchers obtained informed consent from subjects.
FUNDING AND CONFLICTS OF INTEREST: This case study was carried out under grant P50 003391, co-funded by the National Human Genome Research Institute and US Department of Energy, and supplemented by funding from The Duke Endowment.
The case study authors have no consultancies, stock ownership, grants, or equity interests that would create financial conflicts of interest. The Center for Genome Ethics, Law & Policy accepts no industry funding. Dr. Robert Cook-Deegan is listed on the British Medical Journal roster of physicians who have pledged to remain independent of industry funding <http://www.tseed.com/pdfs/bmj.pdf>; more details about how the case studies were done are noted in a 29 July 2009 letter to the Secretary’s Advisory Committee on Genetics, Health, and Society <http://www.genome.duke.edu/centers/gelp/documents/SACGHSResponsetopubliccomments.pdf>.
Subhashini Chandrasekharan, Center for Public Genomics, Center for Genome Ethics, Law & Policy, Institute for Genome Sciences & Policy, Duke University.
Christopher Heaney, Center for Public Genomics, Center for Genome Ethics, Law & Policy, Institute for Genome Sciences & Policy, Duke University.
Tamara James, Center for Public Genomics, Center for Genome Ethics, Law & Policy, Institute for Genome Sciences & Policy, Duke University.
Chris Conover, Center for Health Policy, Terry Sanford Institute of Public Policy, Duke University.
Robert Cook-Deegan, Center for Genome Ethics, Law & Policy, Institute for Genome Sciences & Policy, Duke University.