这些话怎么翻译合适？

在看一篇文献，有些句子不知道如何翻译更准确，陆续发来向大家请教。

1.patients with very long migraine attacks
这句话是说偏头痛病程很长的病人，还是每次发作时间很长的病人？

2.after the onset of allodynia during a migraine attack
在一次偏头痛发作中，发生触诱发痛之后？

3.trials not supporting a difference for allodynic patients
对触诱发痛患者而言，试验不支持存在差异？

4.Frovatriptan has been compared with  sumatriptan but the recurrence data has never been made public, which at least calls the assertion that is has a lower recurrence rate into question.
不明白！


以下为最新求助：

5.non-intention-to-treat yses 是什么意思？
非意向治疗分析？

6.be recommended as a second choice antidepressant in migraine prophylaxis
被推荐为第二位抗抑郁药预防偏头痛？

7.This indication is currently evaluated in a trial program
近来一项试验过程评价了这一观点？

8.no consistent efficacy of this procedure in the acute treatment of migraine attacks
对于偏头痛发作的急性治疗的这一操作流程没有取得一致？

1.应该是病程时间长。2在一次偏头痛中异常性疼痛发生后 3.实验并不支持对于有异常性疼痛患者间有差别（不晓得什么差别，看原来上下文）

4.Frovatriptan has been compared with  sumatriptan but the recurrence data has never been made public, which at least calls the assertion that is has a lower recurrence rate into question.
夫罗曲普坦曾经与舒马普坦比较过（大概是药效什么的，不是学这些的不明白），但是复况的数据却从未公布过，这些数据至少应该对“有一个较低的复发率”这样的论断引出疑问。

7.This indication is currently evaluated in a trial program
近来一项试验过程在对这一观点进行评估

1. attack
指疾病的发作， 英文释义为：
a sudden short of period of suffering from an illness, especially an illness that you suffer often.

那么long attack， 我认为应该指每次发作的时间长！