MEMORANDUM OPINION
Plaintiff Eli Lilly and Company moves this Court for summary judgment pursuant to Rule 56 of the Federal Rules of Civil Procedure (Fed.R.Civ.P.). Defendants, Lilly’s insurers from 1947 to July 15, 1976, vigorously oppose the motion. For the reasons set forth in this Opinion, the Court finds that there is no genuine issue as to any material fact and Lilly is entitled to judgment as a matter of law. Accordingly, the motion of plaintiff for summary judgment is granted.
BACKGROUND
Eli Lilly is one of several hundred manufacturers of products containing the drug diethylstilbestrol (DES). 1 Between 1947 and 1967, Lilly manufactured and sold DES for prescription use by women with a history of threatened or habitual miscarriages. 2 In 1970, a statistical association was shown between the ingestion of DES by pregnant women and the occurrence of vaginal clear-cell adenocarcinoma in the female offspring exposed in útero to DES. 3 Since the discovery of this association, Lilly’s liability for clear-cell adenocarcinoma and other DES-related diseáses has become the subject of voluminous litigation. Indeed, as of March 1, 1983, approximately 641 lawsuits had been filed against Lilly. 4
In the typical case, the plaintiff, a DES-daughter, alleges that her mother ingested DES during pregnancy and her in útero exposure to DES caused a DES-related injury. The most common injuries alleged by plaintiffs are vaginal or cervical clear-cell adenocarcinoma and vaginal adenosis. 5 Lil *4 ly also has been named as a co-defendant with other manufacturers of DES in cases where a plaintiff is unable to identify the manufacturer of the particular synthetic estrogen that allegedly caused the injury. 6 These cases are not uncommon since several years elapse between the ingestion of DES by a pregnant woman and the diagnosis of a DES-related disease in the male or female child of that pregnancy. 7
Lilly notified defendants of the various DES claims filed against it. 8 The general position of each of the insurers is, however, that its policy does not provide coverage for these claims since the proper date of the alleged DES-related injury did not occur during the policy period. 9 In this action for declaratory judgment, Lilly seeks a judgment declaring that 1) each policy in force from the date of ingestion of DES until the manifestation of an alleged DES-related injury provides full coverage to Lilly for the entire amount of its indemnifia-ble losses and expenses, subject only to those underlying dollar limits of liability contained in each policy; 2) Lilly may elect under which of the policies in force it will file each claim; 3) the insurer which issued the policy that Lilly elects must pay the full amount of Lilly’s indemnifiable losses and expenses with prejudgment interest as permitted by law; and 4) the participation or contribution by other insurers whose policies are in force during the period of coverage shall be the responsibility of the insurers and shall not impede or detract from Lilly’s ability to receive indemnification.
The Policies
Lilly’s product liability insurance policies with defendants are “manuscript” policies written specifically for Lilly. 10 However, the provision in each of these policies providing for liability coverage is identical in all material respects to the coverage provision in the Comprehensive General Liability Policy (CGL). The CGL is a standard form policy for liability coverage drafted during the 1960’s by representatives of the insurance industry to deal with the problem of liability for insidious diseases; that is, illnesses which become manifest long after initial exposure to the substance believed to cause them. 11 Both the 1966 version of the *5 CGL and Lilly’s policies throughout the period relevant to this litigation provide liability coverage for “occurrences” that result in personal injury. The coverage language in 199 of the 254 policies issued to Lilly is representative. It provides that the
[underwriters hereby agree, subject to the limitations, terms and conditions hereafter mentioned, to indemnify the Assured for all sums which the Assured shall be obligated to pay ... for damages, direct or consequential, and expenses, all as more fully defined by the term “ultimate net loss,” on account of
(i) personal injuries, including death at any time resulting therefrom, ... cause by or arising out of each occurrence anywhere in the world.
“Personal injuries” is defined as “bodily injury, mental injury, ... sickness, [or] disease”, and “occurrence” is defined as “an accident or a happening or event or a continuous or repeated exposure to conditions which unexpectedly and unintentionally results in personal injury ... during the policy period.” It is clear that each policy, like the CGL, requires that an “injury”, and not the “occurrence” which causes the injury, falls within a policy period in order for coverage to trigger. It is, however, unclear under both the CGL language and Lilly’s policies when injury occurs. Thus, the ultimate question before this Court is when does “bodily injury, sickness or disease” occur under the liability coverage provision of the policies purchased by Lilly.
DISCUSSION
A. Choice of Law
The basis for jurisdiction in this case is diversity of citizenship, 28 U.S.C. § 1332(a) (1982 ed.). Thus, it is rudimentary that state law furnishes the substantive rules of decision.
See e.g., Erie Railroad Co. v. Tompkins,
When confronted with a multistate case, a court must make a twofold inquiry. First, a court must ascertain whether more than one state has an interest in applying its law to the facts at issue. Second, a court must consider whether the laws of the interested states conflict when applied to the particular dispute. If this question is answered in the affirmative, a court is faced with a classic conflict-of-laws issue and it must then determine what law governs the disposition of the case. Courts will not engage in this choice-of-law exercise, however, when the laws of interested states do not conflict or present what is commonly referred to as a “false con
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flict.”
13
See e.g., Keene Corp. v. Insurance Co. of North America,
It is clear that more than one state has an interest in applying its laws governing the interpretation of insurance policies to the coverage provisions of Lilly’s policies. For example, Indiana, Pennsylvania, and New York have an obvious interest as the principal states where the parties negotiated and agreed on the terms of the insurance policies. See Affidavit of D.C. Arbo-gast attached to Plaintiff’s Opposition to Defendants’ Motion to Dismiss or Transfer; Defendants’ Appendix VI, Ex. 828. Further, Indiana has a particular interest in the construction of the coverage provisions since the insured’s domicile is Indiana. Thus, the Court must now determine whether the interpretative laws of these states conflict when employed to construe CGL-type coverage terms in cases of insidious diseases, such as DES-related illnesses.
The courts in the interested states which have addressed this issue all begin their analysis by applying the general principles of interpretation of insurance contracts to CGL coverage terms. Although these principles do not differ in any material respect, these courts have derived different constructions of when coverage is triggered in insidious disease claims. Courts in the Second Circuit, applying New York law, and New York courts have largely construed coverage for DES-related claims to trigger when the disease becomes manifest; that is, when the symptoms of the injury become noticeable or diagnosable.
See Em-ons Industries, Inc. v. Liberty Mutual Fire Ins. Co.,
The U.S. District Court in New York and the state courts of New York have, however, rejected
Keene’s
construction of these CGL-type coverage provisions. In
Emons Industries,
To determine what law governs the disposition of a multi-state case, federal courts are obligated to apply the choice of law principles of the forum jurisdiction.
See Walton v. Morgan Stanley & Co., Inc.,
B. Summary Judgment
Under Rule 56 of the Federal Rules of Civil Procedure, a motion for summary judgment is properly granted where the pleadings, depositions, answers to interrogatories, admissions, and affidavits, if any, substantiate that there is no genuine issue as to any material fact and that the moving party is entitled to judgment as a matter of law. Indeed, when ruling on a motion for
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summary judgment, it is not the Court’s function to “[t]ry disputed issues of [material] fact, but only to ascertain whether such an issue is present, and any doubt on that score is to be resolved against the movant.”
Abraham v. Graphic Arts Int’l Union,
Defendants contend that discovery has unveiled a multitude of material facts that are genuinely disputed by the parties. Specifically, defendants argue that a real controversy exists over the authorship of the policy language, Lilly’s actual intent to purchase single-trigger coverage for delayed-manifestation claims, and medical evidence as to when DES-related injuries occur. To the contrary, Eli Lilly maintains that these facts are immaterial since the obligations of defendants to indemnify it for DES-related claims are determined by the precepts enunciated by the D.C. Circuit Court of Appeals in
Keene,
In order for a fact to be deemed material within the meaning of Rule 56 it must be necessary to a court’s decision.
See Marshall v. Kimberly-Clark Corp.,
Neither the Indiana state courts nor federal courts applying Indiana law have determined when “bodily injury” occurs under a CGL-type coverage clause in cases of delayed-manifestation diseases. The absence of any Indiana decisional law on this question does not, however, relieve this Court of its duty to evaluate current Indiana law governing the interpretation of insurance policies and to make an educated prediction of how an Indiana court would interpret the coverage language in Lilly’s policies.
See Hiller v. Franklin Mint, Inc. ,
It is firmly established in Indiana jurisprudence that an insurance policy is in substance a contract and it is governed by the fundamental principles of interpretation applied to written contracts.
See e.g., Huntington Mutual Ins. Co. v. Walker,
Whether an Indiana court will resort to the basic principles of contract construction or extrinsic evidence to determine the reasonable expectations of the parties depends upon the type and purpose of the contract. For example, in
Shahan v. Brinegar,
Trigger of Coverage
Under the interpretative law of Indiana, the terms “bodily injury,” “sickness,” and “disease” are ambiguous when used in the context of insidious diseases since reasonable persons could honestly give different meanings to these words.
See e.g., Jeffries v. Stewart,
Those courts which have adopted the manifestation theory of when “bodily injury” occurs under the ambiguous CGL terms engage in an exhaustive investigation of extrinsic evidence to derive the intent of the parties.
See e.g., Eagle-Picher Industries, Inc. v. Liberty Mutual Insurance,
Adhering to the principles enunciated in
Keene,
the Court finds that proper construction of the coverage provisions in Lilly’s policies is that each insurer on the risk between the initial ingestion of DES and the manifestation of a DES-related dis-. ease is liable to Lilly for indemnification. The coverage terms in Lilly’s policies are either identical or functionally identical to the CGL terms in Keene’s policies. Furthermore, the policy language does not lead the Court “unambiguously to either the ‘exposure’ or ‘manifestation’ interpretation” for such latent diseases as DES-related diseases.
Keene
The Extent of Coverage and Allocation of Liability
The policies at issue in this case, as those in
Keene,
provide that the insurance company will indemnify Lilly for all sums that Lilly becomes legally obligated to pay. As a result of this Court’s multi-trigger construction of “bodily injury,” the issue of whether an insurer is liable in full, or in part, for Lilly’s liability must be addressed. It is the holding of the Court that an insurer is liable in full once coverage under its policy is triggered. However, Lilly can only apply one policy’s limit to each injury and it may select the policy under which it is to be indemnified.
See Keene
Notes
. DES, the first synthetic estrogen, was synthesized in 1938 by Dr. E.C. Dodds and his colleagues at Oxford and Cambridge, England. In 1941, the Food and Drug Administration (FDA) approved Lilly’s New Drug Application for DES for certain nonpregnancy indications.
. FDA permitted Lilly to market DES as a prescription drug for the treatment of threatened or habitual miscarriage in September 1947. In 1952, FDA informed Lilly that DES was "no longer a new drug” within the meaning of the Federal Food, Drug, and Cosmetic Act § 201(p), 21 U.S.C. § 321(p) (1982). A drug is "no longer a new drug” under the Act when it is generally recognized by experts in the field as safe and effective for its intended purpose.
Id. See also, Weinberger v. Hynson, Westcott & Dunning, Inc.,
. Drs. Arthur L. Herbst and Robert E. Scully first reported the statistical association. See Herbst & Scully, Adenocarcinoma of the Vagina in Adolescence: A Report of 7 Cases Including 6 Clear Cell Carcinomas (so-called mesonephro-mas), 25 Cancer 745-57 (1970). Since the Herbst and Scully Report, other researchers have reported correlations between the ingestion of DES during pregnancy and the appearance years later of abnormalities in the male or female child of that pregnancy. See e.g., Staff & Mattingly, Vaginal adenosis: A Precancerous Lesion?, 120 Am.J.Obstet.Gynecol. 666-73 (1974). In 1971, FDA required pharmaceutical manufacturers to contra-indicate DES for use in treating certain complications of pregnancy.
. 362 of these suits were pending as of March 31, 1983.
. Adenosis, a noncarcerous condition, is the presence of normal columnar cells in an unusual location in the vagina. See generally, Johnson, Driscoll, Hertig, Cole, & Nickerson, *4 Vaginal Adenosis in Stillboms and Neonates Exposed to Diethylstilbestral and Steroidal Estro-gens and Progestins, 53 J.Am.College Obstet & Gynecol 971 (1979). Other abnormalities allegedly caused by in útero exposure to DES are infertility, cervical ectropion, and transverse vaginal and cervical ridges.
. Plaintiffs in such cases have proceeded on theories which would impose liability on Lilly even though it cannot be established that a Lilly product was ingested. Several jurisdictions have recognized these novel theories of fort liability.
See e.g., Sindell v. Abbott Laboratories,
. For example, current medical research indicates that the clear cell adenocarcinoma allegedly caused by in útero exposure to DES usually develops when the female offspring is between 15 and 25 years of age.
. Defendants refused to write further insurance to Lilly for DES-related losses on July 15, 1976.
. In general, those insurers at risk prior to the diagnosis of DES-related diseases took the position that policies in force on the "date of manifestation” of the injury covered DES claims. Similarly, those insurers whose policies were in force on the date of manifestation of DES-related injuries took the position that policies in force on the date of ingestion of DES covered DES claims.
. In each year Lilly's insurance begins after an initial level of loss or liability for which Lilly is self-insured. This self-insured amount is generally referred to as a self-insured retention or SIR. Above the SIR amount is an initial layer of insurance which insures Lilly against losses in excess of the SIR up to the policies stated limit of liability. In most years, additional layers of insurance insure Lilly against losses in excess of the limits of the initial layer policies. Each layer of insurance covers losses in excess of the amounts covered by the preceding layers up to a maximum liability limit after which another layer is triggered.
. Prior to 1966, general liability policies provided coverage for liability "because of bodily injury, sickness or disease, including death at anytime resulting therefrom, sustained by any person,
caused by accident
and arising out of the hazards____”
See, American Home Products Corp. v. Liberty Mutual Insurance Co.,
. Stipulation, filed March 21, 1983, 2; Stipulation Substituting Certain London Defendants, docketed July 20, 1982, f 1; Answer of Allan Peter Denis Haycock, et al., Docketed July 20, 1982, U 5.
. A false conflict is present when either the laws of the interested states are the same or when these laws, though different, produce the same result when applied to the facts at issue. See generally, Comment, False Conflicts, 55 Calif.L.Rev. 74, 89 (1967).
. In suits involving asbestos-related diseases, however, a false conflict exists since the differ
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ent interpretative laws employed by the courts reach the same result, namely coverage for the insured.
See e.g., Eagle-Picher Industries, Inc. v. Liberty Mutual Insurance Co.,
. In Keene, the record before the Court of Appeals contained evidence regarding the negotiation and drafting of the policies, Keene’s alleged sophistication and economic power, and Keene’s actual expectation to receive “single trigger" coverage. Nonetheless, the Court of Appeals viewed this evidence as nondetermina-tive and applied the doctrine of "objective reasonable expectations.”
. In attempting to determine the result that an Indiana court would reach, this Court may also refer to such sources as the restatements of law, insurance law treaties, and law review commentaries.
See American Record Pressing Co.
v.
U.S. Fidelity & Guaranty Co.,
. These generally accepted principles of interpretation of insurance policies are: 1) in construing the scope of coverage under insurance policies, the objective must be to give effect to the policies’ dominant purpose of indemnity; 2) ambiguity in an insurance contract should be construed in favor of the insured; and 3) the court should ordinarily strive to give effect to the objectively reasonable expectations of the insured. See generally, Couch on Insurance 2d, §§ 15:14, 15:16, 15:22, 15:41 (2d ed. Anderson 1959); 4 Williston on Contracts, §§ 621, 900 (3d ed. Jaeger 1959).
